Mercurial > projects > dwt-win
changeset 31:92c102dd64a3
Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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--- a/dsss.conf Mon Jan 28 02:37:23 2008 +0100 +++ b/dsss.conf Mon Jan 28 04:47:28 2008 +0100 @@ -2,7 +2,4 @@ [dwt] type=library -exclude=dwt/events -exclude+=dwt/internal/image -exclude+=dwt/layout
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/ACC.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,79 @@ +/******************************************************************************* + * Copyright (c) 2000, 2004 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.ACC; + + +/** + * Class ACC contains all the constants used in defining an + * Accessible object. + * + * @since 2.0 + */ +public class ACC { + public static const int STATE_NORMAL = 0x00000000; + public static const int STATE_SELECTED = 0x00000002; + public static const int STATE_SELECTABLE = 0x00200000; + public static const int STATE_MULTISELECTABLE = 0x1000000; + public static const int STATE_FOCUSED = 0x00000004; + public static const int STATE_FOCUSABLE = 0x00100000; + public static const int STATE_PRESSED = 0x8; + public static const int STATE_CHECKED = 0x10; + public static const int STATE_EXPANDED = 0x200; + public static const int STATE_COLLAPSED = 0x400; + public static const int STATE_HOTTRACKED = 0x80; + public static const int STATE_BUSY = 0x800; + public static const int STATE_READONLY = 0x40; + public static const int STATE_INVISIBLE = 0x8000; + public static const int STATE_OFFSCREEN = 0x10000; + public static const int STATE_SIZEABLE = 0x20000; + public static const int STATE_LINKED = 0x400000; + + public static const int ROLE_CLIENT_AREA = 0xa; + public static const int ROLE_WINDOW = 0x9; + public static const int ROLE_MENUBAR = 0x2; + public static const int ROLE_MENU = 0xb; + public static const int ROLE_MENUITEM = 0xc; + public static const int ROLE_SEPARATOR = 0x15; + public static const int ROLE_TOOLTIP = 0xd; + public static const int ROLE_SCROLLBAR = 0x3; + public static const int ROLE_DIALOG = 0x12; + public static const int ROLE_LABEL = 0x29; + public static const int ROLE_PUSHBUTTON = 0x2b; + public static const int ROLE_CHECKBUTTON = 0x2c; + public static const int ROLE_RADIOBUTTON = 0x2d; + public static const int ROLE_COMBOBOX = 0x2e; + public static const int ROLE_TEXT = 0x2a; + public static const int ROLE_TOOLBAR = 0x16; + public static const int ROLE_LIST = 0x21; + public static const int ROLE_LISTITEM = 0x22; + public static const int ROLE_TABLE = 0x18; + public static const int ROLE_TABLECELL = 0x1d; + public static const int ROLE_TABLECOLUMNHEADER = 0x19; + /** @deprecated use ROLE_TABLECOLUMNHEADER */ + public static const int ROLE_TABLECOLUMN = ROLE_TABLECOLUMNHEADER; + public static const int ROLE_TABLEROWHEADER = 0x1a; + public static const int ROLE_TREE = 0x23; + public static const int ROLE_TREEITEM = 0x24; + public static const int ROLE_TABFOLDER = 0x3c; + public static const int ROLE_TABITEM = 0x25; + public static const int ROLE_PROGRESSBAR = 0x30; + public static const int ROLE_SLIDER = 0x33; + public static const int ROLE_LINK = 0x1e; + + public static const int CHILDID_SELF = -1; + public static const int CHILDID_NONE = -2; + public static const int CHILDID_MULTIPLE = -3; + + public static const int TEXT_INSERT = 0; + public static const int TEXT_DELETE = 1; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/Accessible.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1458 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.Accessible; + +//PORTING_TYPE +public class Accessible { +} + +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.internal.ole.win32.COM; +import dwt.internal.ole.win32.COMObject; +import dwt.internal.ole.win32.GUID; +import dwt.internal.ole.win32.IAccessible; +import dwt.internal.ole.win32.IEnumVARIANT; +import dwt.internal.ole.win32.VARIANT; +import dwt.internal.win32.OS; +import dwt.internal.win32.TVITEM; +import dwt.ole.win32.OLE; +import dwt.widgets.Control; +import dwt.widgets.Table; +import dwt.widgets.TableItem; +import dwt.widgets.Tree; +import dwt.widgets.TreeItem; +import dwt.widgets.Widget; + +/** + * Instances of this class provide a bridge between application + * code and assistive technology clients. Many platforms provide + * default accessible behavior for most widgets, and this class + * allows that default behavior to be overridden. Applications + * can get the default Accessible object for a control by sending + * it <code>getAccessible</code>, and then add an accessible listener + * to override simple items like the name and help string, or they + * can add an accessible control listener to override complex items. + * As a rule of thumb, an application would only want to use the + * accessible control listener to implement accessibility for a + * custom control. + * + * @see Control#getAccessible + * @see AccessibleListener + * @see AccessibleEvent + * @see AccessibleControlListener + * @see AccessibleControlEvent + * + * @since 2.0 + */ +public class Accessible { + int refCount = 0, enumIndex = 0; + COMObject objIAccessible, objIEnumVARIANT; + IAccessible iaccessible; + Vector accessibleListeners = new Vector(); + Vector accessibleControlListeners = new Vector(); + Vector textListeners = new Vector (); + Object[] variants; + Control control; + + Accessible(Control control) { + this.control = control; + int /*long*/[] ppvObject = new int /*long*/[1]; + /* CreateStdAccessibleObject([in] hwnd, [in] idObject, [in] riidInterface, [out] ppvObject). + * AddRef has already been called on ppvObject by the callee and must be released by the caller. + */ + int result = (int)/*64*/COM.CreateStdAccessibleObject(control.handle, COM.OBJID_CLIENT, COM.IIDIAccessible, ppvObject); + /* The object needs to be checked, because if the CreateStdAccessibleObject() + * symbol is not found, the return value is S_OK. + */ + if (ppvObject[0] is 0) return; + if (result !is COM.S_OK) OLE.error(OLE.ERROR_CANNOT_CREATE_OBJECT, result); + iaccessible = new IAccessible(ppvObject[0]); + + objIAccessible = new COMObject(new int[] {2,0,0,1,3,5,8,1,1,2,2,2,2,2,2,2,3,2,1,1,2,2,5,3,3,1,2,2}) { + public int /*long*/ method0(int /*long*/[] args) {return QueryInterface(args[0], args[1]);} + public int /*long*/ method1(int /*long*/[] args) {return AddRef();} + public int /*long*/ method2(int /*long*/[] args) {return Release();} + // method3 GetTypeInfoCount - not implemented + // method4 GetTypeInfo - not implemented + // method5 GetIDsOfNames - not implemented + // method6 Invoke - not implemented + public int /*long*/ method7(int /*long*/[] args) {return get_accParent(args[0]);} + public int /*long*/ method8(int /*long*/[] args) {return get_accChildCount(args[0]);} + public int /*long*/ method9(int /*long*/[] args) {return get_accChild(args[0], args[1]);} + public int /*long*/ method10(int /*long*/[] args) {return get_accName(args[0], args[1]);} + public int /*long*/ method11(int /*long*/[] args) {return get_accValue(args[0], args[1]);} + public int /*long*/ method12(int /*long*/[] args) {return get_accDescription(args[0], args[1]);} + public int /*long*/ method13(int /*long*/[] args) {return get_accRole(args[0], args[1]);} + public int /*long*/ method14(int /*long*/[] args) {return get_accState(args[0], args[1]);} + public int /*long*/ method15(int /*long*/[] args) {return get_accHelp(args[0], args[1]);} + public int /*long*/ method16(int /*long*/[] args) {return get_accHelpTopic(args[0], args[1], args[2]);} + public int /*long*/ method17(int /*long*/[] args) {return get_accKeyboardShortcut(args[0], args[1]);} + public int /*long*/ method18(int /*long*/[] args) {return get_accFocus(args[0]);} + public int /*long*/ method19(int /*long*/[] args) {return get_accSelection(args[0]);} + public int /*long*/ method20(int /*long*/[] args) {return get_accDefaultAction(args[0], args[1]);} + public int /*long*/ method21(int /*long*/[] args) {return accSelect((int)/*64*/args[0], args[1]);} + public int /*long*/ method22(int /*long*/[] args) {return accLocation(args[0], args[1], args[2], args[3], args[4]);} + public int /*long*/ method23(int /*long*/[] args) {return accNavigate((int)/*64*/args[0], args[1], args[2]);} + public int /*long*/ method24(int /*long*/[] args) {return accHitTest((int)/*64*/args[0], (int)/*64*/args[1], args[2]);} + public int /*long*/ method25(int /*long*/[] args) {return accDoDefaultAction(args[0]);} + public int /*long*/ method26(int /*long*/[] args) {return put_accName(args[0], args[1]);} + public int /*long*/ method27(int /*long*/[] args) {return put_accValue(args[0], args[1]);} + }; + + int /*long*/ ppVtable = objIAccessible.ppVtable; + int /*long*/[] pVtable = new int /*long*/[1]; + COM.MoveMemory(pVtable, ppVtable, OS.PTR_SIZEOF); + int /*long*/[] funcs = new int /*long*/[28]; + COM.MoveMemory(funcs, pVtable[0], OS.PTR_SIZEOF * funcs.length); + funcs[9] = COM.get_accChild_CALLBACK(funcs[9]); + funcs[10] = COM.get_accName_CALLBACK(funcs[10]); + funcs[11] = COM.get_accValue_CALLBACK(funcs[11]); + funcs[12] = COM.get_accDescription_CALLBACK(funcs[12]); + funcs[13] = COM.get_accRole_CALLBACK(funcs[13]); + funcs[14] = COM.get_accState_CALLBACK(funcs[14]); + funcs[15] = COM.get_accHelp_CALLBACK(funcs[15]); + funcs[16] = COM.get_accHelpTopic_CALLBACK(funcs[16]); + funcs[17] = COM.get_accKeyboardShortcut_CALLBACK(funcs[17]); + funcs[20] = COM.get_accDefaultAction_CALLBACK(funcs[20]); + funcs[21] = COM.accSelect_CALLBACK(funcs[21]); + funcs[22] = COM.accLocation_CALLBACK(funcs[22]); + funcs[23] = COM.accNavigate_CALLBACK(funcs[23]); + funcs[25] = COM.accDoDefaultAction_CALLBACK(funcs[25]); + funcs[26] = COM.put_accName_CALLBACK(funcs[26]); + funcs[27] = COM.put_accValue_CALLBACK(funcs[27]); + COM.MoveMemory(pVtable[0], funcs, OS.PTR_SIZEOF * funcs.length); + + objIEnumVARIANT = new COMObject(new int[] {2,0,0,3,1,0,1}) { + public int /*long*/ method0(int /*long*/[] args) {return QueryInterface(args[0], args[1]);} + public int /*long*/ method1(int /*long*/[] args) {return AddRef();} + public int /*long*/ method2(int /*long*/[] args) {return Release();} + public int /*long*/ method3(int /*long*/[] args) {return Next((int)args[0], args[1], args[2]);} + public int /*long*/ method4(int /*long*/[] args) {return Skip((int)args[0]);} + public int /*long*/ method5(int /*long*/[] args) {return Reset();} + public int /*long*/ method6(int /*long*/[] args) {return Clone(args[0]);} + }; + AddRef(); + } + + /** + * Invokes platform specific functionality to allocate a new accessible object. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Accessible</code>. It is marked public only so that it + * can be shared within the packages provided by DWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + * + * @param control the control to get the accessible object for + * @return the platform specific accessible object + */ + public static Accessible internal_new_Accessible(Control control) { + return new Accessible(control); + } + + /** + * Adds the listener to the collection of listeners who will + * be notified when an accessible client asks for certain strings, + * such as name, description, help, or keyboard shortcut. The + * listener is notified by sending it one of the messages defined + * in the <code>AccessibleListener</code> interface. + * + * @param listener the listener that should be notified when the receiver + * is asked for a name, description, help, or keyboard shortcut string + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleListener + * @see #removeAccessibleListener + */ + public void addAccessibleListener(AccessibleListener listener) { + checkWidget(); + if (listener is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); + accessibleListeners.addElement(listener); + } + + /** + * Adds the listener to the collection of listeners who will + * be notified when an accessible client asks for custom control + * specific information. The listener is notified by sending it + * one of the messages defined in the <code>AccessibleControlListener</code> + * interface. + * + * @param listener the listener that should be notified when the receiver + * is asked for custom control specific information + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleControlListener + * @see #removeAccessibleControlListener + */ + public void addAccessibleControlListener(AccessibleControlListener listener) { + checkWidget(); + if (listener is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); + accessibleControlListeners.addElement(listener); + } + + /** + * Adds the listener to the collection of listeners who will + * be notified when an accessible client asks for custom text control + * specific information. The listener is notified by sending it + * one of the messages defined in the <code>AccessibleTextListener</code> + * interface. + * + * @param listener the listener that should be notified when the receiver + * is asked for custom text control specific information + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleTextListener + * @see #removeAccessibleTextListener + * + * @since 3.0 + */ + public void addAccessibleTextListener (AccessibleTextListener listener) { + checkWidget (); + if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + textListeners.addElement (listener); + } + + /** + * Returns the control for this Accessible object. + * + * @return the receiver's control + * @since 3.0 + */ + public Control getControl() { + return control; + } + + /** + * Invokes platform specific functionality to dispose an accessible object. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Accessible</code>. It is marked public only so that it + * can be shared within the packages provided by DWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + */ + public void internal_dispose_Accessible() { + if (iaccessible !is null) { + iaccessible.Release(); + } + iaccessible = null; + Release(); + } + + /** + * Invokes platform specific functionality to handle a window message. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Accessible</code>. It is marked public only so that it + * can be shared within the packages provided by DWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + */ + public int /*long*/ internal_WM_GETOBJECT (int /*long*/ wParam, int /*long*/ lParam) { + if (objIAccessible is null) return 0; + if ((int)/*64*/lParam is COM.OBJID_CLIENT) { + /* LresultFromObject([in] riid, [in] wParam, [in] pAcc) + * The argument pAcc is owned by the caller so reference count does not + * need to be incremented. + */ + return COM.LresultFromObject(COM.IIDIAccessible, wParam, objIAccessible.getAddress()); + } + return 0; + } + + /** + * Removes the listener from the collection of listeners who will + * be notified when an accessible client asks for certain strings, + * such as name, description, help, or keyboard shortcut. + * + * @param listener the listener that should no longer be notified when the receiver + * is asked for a name, description, help, or keyboard shortcut string + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleListener + * @see #addAccessibleListener + */ + public void removeAccessibleListener(AccessibleListener listener) { + checkWidget(); + if (listener is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); + accessibleListeners.removeElement(listener); + } + + /** + * Removes the listener from the collection of listeners who will + * be notified when an accessible client asks for custom control + * specific information. + * + * @param listener the listener that should no longer be notified when the receiver + * is asked for custom control specific information + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleControlListener + * @see #addAccessibleControlListener + */ + public void removeAccessibleControlListener(AccessibleControlListener listener) { + checkWidget(); + if (listener is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); + accessibleControlListeners.removeElement(listener); + } + + /** + * Removes the listener from the collection of listeners who will + * be notified when an accessible client asks for custom text control + * specific information. + * + * @param listener the listener that should no longer be notified when the receiver + * is asked for custom text control specific information + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleTextListener + * @see #addAccessibleTextListener + * + * @since 3.0 + */ + public void removeAccessibleTextListener (AccessibleTextListener listener) { + checkWidget (); + if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + textListeners.removeElement (listener); + } + + /** + * Sends a message to accessible clients that the child selection + * within a custom container control has changed. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @since 3.0 + */ + public void selectionChanged () { + checkWidget(); + COM.NotifyWinEvent (COM.EVENT_OBJECT_SELECTIONWITHIN, control.handle, COM.OBJID_CLIENT, COM.CHILDID_SELF); + } + + /** + * Sends a message to accessible clients indicating that the focus + * has changed within a custom control. + * + * @param childID an identifier specifying a child of the control + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + */ + public void setFocus(int childID) { + checkWidget(); + COM.NotifyWinEvent (COM.EVENT_OBJECT_FOCUS, control.handle, COM.OBJID_CLIENT, childIDToOs(childID)); + } + + /** + * Sends a message to accessible clients that the text + * caret has moved within a custom control. + * + * @param index the new caret index within the control + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @since 3.0 + */ + public void textCaretMoved (int index) { + checkWidget(); + COM.NotifyWinEvent (COM.EVENT_OBJECT_LOCATIONCHANGE, control.handle, COM.OBJID_CARET, COM.CHILDID_SELF); + } + + /** + * Sends a message to accessible clients that the text + * within a custom control has changed. + * + * @param type the type of change, one of <code>ACC.NOTIFY_TEXT_INSERT</code> + * or <code>ACC.NOTIFY_TEXT_DELETE</code> + * @param startIndex the text index within the control where the insertion or deletion begins + * @param length the non-negative length in characters of the insertion or deletion + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see ACC#TEXT_INSERT + * @see ACC#TEXT_DELETE + * + * @since 3.0 + */ + public void textChanged (int type, int startIndex, int length) { + checkWidget(); + COM.NotifyWinEvent (COM.EVENT_OBJECT_VALUECHANGE, control.handle, COM.OBJID_CLIENT, COM.CHILDID_SELF); + } + + /** + * Sends a message to accessible clients that the text + * selection has changed within a custom control. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @since 3.0 + */ + public void textSelectionChanged () { + checkWidget(); + // not an MSAA event + } + + /* QueryInterface([in] iid, [out] ppvObject) + * Ownership of ppvObject transfers from callee to caller so reference count on ppvObject + * must be incremented before returning. Caller is responsible for releasing ppvObject. + */ + int QueryInterface(int /*long*/ iid, int /*long*/ ppvObject) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + GUID guid = new GUID(); + COM.MoveMemory(guid, iid, GUID.sizeof); + + if (COM.IsEqualGUID(guid, COM.IIDIUnknown)) { + COM.MoveMemory(ppvObject, new int /*long*/[] { objIAccessible.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + return COM.S_OK; + } + + if (COM.IsEqualGUID(guid, COM.IIDIDispatch)) { + COM.MoveMemory(ppvObject, new int /*long*/[] { objIAccessible.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + return COM.S_OK; + } + + if (COM.IsEqualGUID(guid, COM.IIDIAccessible)) { + COM.MoveMemory(ppvObject, new int /*long*/[] { objIAccessible.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + return COM.S_OK; + } + + if (COM.IsEqualGUID(guid, COM.IIDIEnumVARIANT)) { + COM.MoveMemory(ppvObject, new int /*long*/[] { objIEnumVARIANT.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + enumIndex = 0; + return COM.S_OK; + } + + int /*long*/[] ppv = new int /*long*/[1]; + int result = iaccessible.QueryInterface(guid, ppv); + COM.MoveMemory(ppvObject, ppv, OS.PTR_SIZEOF); + return result; + } + + int AddRef() { + refCount++; + return refCount; + } + + int Release() { + refCount--; + + if (refCount is 0) { + if (objIAccessible !is null) + objIAccessible.dispose(); + objIAccessible = null; + + if (objIEnumVARIANT !is null) + objIEnumVARIANT.dispose(); + objIEnumVARIANT = null; + } + return refCount; + } + + int accDoDefaultAction(int /*long*/ variant) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + int code = iaccessible.accDoDefaultAction(variant); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + int accHitTest(int xLeft, int yTop, int /*long*/ pvarChild) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + if (accessibleControlListeners.size() is 0) { + return iaccessible.accHitTest(xLeft, yTop, pvarChild); + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = ACC.CHILDID_NONE; + event.x = xLeft; + event.y = yTop; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getChildAtPoint(event); + } + int childID = event.childID; + if (childID is ACC.CHILDID_NONE) { + return iaccessible.accHitTest(xLeft, yTop, pvarChild); + } + COM.MoveMemory(pvarChild, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarChild + 8, new int[] { childIDToOs(childID) }, 4); + return COM.S_OK; + } + + int accLocation(int /*long*/ pxLeft, int /*long*/ pyTop, int /*long*/ pcxWidth, int /*long*/ pcyHeight, int /*long*/ variant) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default location from the OS. */ + int osLeft = 0, osTop = 0, osWidth = 0, osHeight = 0; + int code = iaccessible.accLocation(pxLeft, pyTop, pcxWidth, pcyHeight, variant); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleControlListeners.size() is 0) return code; + if (code is COM.S_OK) { + int[] pLeft = new int[1], pTop = new int[1], pWidth = new int[1], pHeight = new int[1]; + COM.MoveMemory(pLeft, pxLeft, 4); + COM.MoveMemory(pTop, pyTop, 4); + COM.MoveMemory(pWidth, pcxWidth, 4); + COM.MoveMemory(pHeight, pcyHeight, 4); + osLeft = pLeft[0]; osTop = pTop[0]; osWidth = pWidth[0]; osHeight = pHeight[0]; + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.x = osLeft; + event.y = osTop; + event.width = osWidth; + event.height = osHeight; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getLocation(event); + } + OS.MoveMemory(pxLeft, new int[] { event.x }, 4); + OS.MoveMemory(pyTop, new int[] { event.y }, 4); + OS.MoveMemory(pcxWidth, new int[] { event.width }, 4); + OS.MoveMemory(pcyHeight, new int[] { event.height }, 4); + return COM.S_OK; + } + + int accNavigate(int navDir, int /*long*/ variant, int /*long*/ pvarEndUpAt) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + int code = iaccessible.accNavigate(navDir, variant, pvarEndUpAt); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + int accSelect(int flagsSelect, int /*long*/ variant) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + int code = iaccessible.accSelect(flagsSelect, variant); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + /* get_accChild([in] varChild, [out] ppdispChild) + * Ownership of ppdispChild transfers from callee to caller so reference count on ppdispChild + * must be incremented before returning. The caller is responsible for releasing ppdispChild. + */ + int get_accChild(int /*long*/ variant, int /*long*/ ppdispChild) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + if (accessibleControlListeners.size() is 0) { + int code = iaccessible.get_accChild(variant, ppdispChild); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getChild(event); + } + Accessible accessible = event.accessible; + if (accessible !is null) { + accessible.AddRef(); + COM.MoveMemory(ppdispChild, new int /*long*/[] { accessible.objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + return COM.S_FALSE; + } + + int get_accChildCount(int /*long*/ pcountChildren) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + + /* Get the default child count from the OS. */ + int osChildCount = 0; + int code = iaccessible.get_accChildCount(pcountChildren); + if (accessibleControlListeners.size() is 0) return code; + if (code is COM.S_OK) { + int[] pChildCount = new int[1]; + COM.MoveMemory(pChildCount, pcountChildren, 4); + osChildCount = pChildCount[0]; + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = ACC.CHILDID_SELF; + event.detail = osChildCount; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getChildCount(event); + } + + COM.MoveMemory(pcountChildren, new int[] { event.detail }, 4); + return COM.S_OK; + } + + int get_accDefaultAction(int /*long*/ variant, int /*long*/ pszDefaultAction) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default defaultAction from the OS. */ + String osDefaultAction = null; + int code = iaccessible.get_accDefaultAction(variant, pszDefaultAction); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleControlListeners.size() is 0) return code; + if (code is COM.S_OK) { + int /*long*/[] pDefaultAction = new int /*long*/[1]; + COM.MoveMemory(pDefaultAction, pszDefaultAction, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pDefaultAction[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pDefaultAction[0], size); + osDefaultAction = new String(buffer); + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.result = osDefaultAction; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getDefaultAction(event); + } + if (event.result is null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszDefaultAction, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + int get_accDescription(int /*long*/ variant, int /*long*/ pszDescription) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default description from the OS. */ + String osDescription = null; + int code = iaccessible.get_accDescription(variant, pszDescription); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + // TEMPORARY CODE - process tree even if there are no apps listening + if (accessibleListeners.size() is 0 && !(control instanceof Tree)) return code; + if (code is COM.S_OK) { + int /*long*/[] pDescription = new int /*long*/[1]; + COM.MoveMemory(pDescription, pszDescription, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pDescription[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pDescription[0], size); + osDescription = new String(buffer); + } + } + + AccessibleEvent event = new AccessibleEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.result = osDescription; + + // TEMPORARY CODE + /* Currently our tree columns are emulated using custom draw, + * so we need to create the description using the tree column + * header text and tree item text. */ + if (v.lVal !is COM.CHILDID_SELF) { + if (control instanceof Tree) { + Tree tree = (Tree) control; + int columnCount = tree.getColumnCount (); + if (columnCount > 1) { + int /*long*/ hwnd = control.handle, hItem = 0; + if (OS.COMCTL32_MAJOR >= 6) { + hItem = OS.SendMessage (hwnd, OS.TVM_MAPACCIDTOHTREEITEM, v.lVal, 0); + } else { + hItem = v.lVal; + } + Widget widget = tree.getDisplay ().findWidget (hwnd, hItem); + event.result = ""; + if (widget !is null && widget instanceof TreeItem) { + TreeItem item = (TreeItem) widget; + for (int i = 1; i < columnCount; i++) { + event.result += tree.getColumn(i).getText() + ": " + item.getText(i); + if (i + 1 < columnCount) event.result += ", "; + } + } + } + } + } + for (int i = 0; i < accessibleListeners.size(); i++) { + AccessibleListener listener = (AccessibleListener) accessibleListeners.elementAt(i); + listener.getDescription(event); + } + if (event.result is null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszDescription, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + /* get_accFocus([out] int pvarChild) + * Ownership of pvarChild transfers from callee to caller so reference count on pvarChild + * must be incremented before returning. The caller is responsible for releasing pvarChild. + */ + int get_accFocus(int /*long*/ pvarChild) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + + /* Get the default focus child from the OS. */ + int osChild = ACC.CHILDID_NONE; + int code = iaccessible.get_accFocus(pvarChild); + if (accessibleControlListeners.size() is 0) return code; + if (code is COM.S_OK) { + short[] pvt = new short[1]; + COM.MoveMemory(pvt, pvarChild, 2); + if (pvt[0] is COM.VT_I4) { + int[] pChild = new int[1]; + COM.MoveMemory(pChild, pvarChild + 8, 4); + osChild = osToChildID(pChild[0]); + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osChild; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getFocus(event); + } + Accessible accessible = event.accessible; + if (accessible !is null) { + accessible.AddRef(); + COM.MoveMemory(pvarChild, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(pvarChild + 8, new int /*long*/[] { accessible.objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + int childID = event.childID; + if (childID is ACC.CHILDID_NONE) { + COM.MoveMemory(pvarChild, new short[] { COM.VT_EMPTY }, 2); + return COM.S_FALSE; + } + if (childID is ACC.CHILDID_SELF) { + AddRef(); + COM.MoveMemory(pvarChild, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(pvarChild + 8, new int /*long*/[] { objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + COM.MoveMemory(pvarChild, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarChild + 8, new int[] { childIDToOs(childID) }, 4); + return COM.S_OK; + } + + int get_accHelp(int /*long*/ variant, int /*long*/ pszHelp) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default help string from the OS. */ + String osHelp = null; + int code = iaccessible.get_accHelp(variant, pszHelp); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleListeners.size() is 0) return code; + if (code is COM.S_OK) { + int /*long*/[] pHelp = new int /*long*/[1]; + COM.MoveMemory(pHelp, pszHelp, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pHelp[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pHelp[0], size); + osHelp = new String(buffer); + } + } + + AccessibleEvent event = new AccessibleEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.result = osHelp; + for (int i = 0; i < accessibleListeners.size(); i++) { + AccessibleListener listener = (AccessibleListener) accessibleListeners.elementAt(i); + listener.getHelp(event); + } + if (event.result is null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszHelp, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + int get_accHelpTopic(int /*long*/ pszHelpFile, int /*long*/ variant, int /*long*/ pidTopic) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + int code = iaccessible.get_accHelpTopic(pszHelpFile, variant, pidTopic); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + int get_accKeyboardShortcut(int /*long*/ variant, int /*long*/ pszKeyboardShortcut) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default keyboard shortcut from the OS. */ + String osKeyboardShortcut = null; + int code = iaccessible.get_accKeyboardShortcut(variant, pszKeyboardShortcut); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleListeners.size() is 0) return code; + if (code is COM.S_OK) { + int /*long*/[] pKeyboardShortcut = new int /*long*/[1]; + COM.MoveMemory(pKeyboardShortcut, pszKeyboardShortcut, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pKeyboardShortcut[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pKeyboardShortcut[0], size); + osKeyboardShortcut = new String(buffer); + } + } + + AccessibleEvent event = new AccessibleEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.result = osKeyboardShortcut; + for (int i = 0; i < accessibleListeners.size(); i++) { + AccessibleListener listener = (AccessibleListener) accessibleListeners.elementAt(i); + listener.getKeyboardShortcut(event); + } + if (event.result is null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszKeyboardShortcut, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + int get_accName(int /*long*/ variant, int /*long*/ pszName) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default name from the OS. */ + String osName = null; + int code = iaccessible.get_accName(variant, pszName); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleListeners.size() is 0) return code; + if (code is COM.S_OK) { + int /*long*/[] pName = new int /*long*/[1]; + COM.MoveMemory(pName, pszName, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pName[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pName[0], size); + osName = new String(buffer); + } + } + + AccessibleEvent event = new AccessibleEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.result = osName; + for (int i = 0; i < accessibleListeners.size(); i++) { + AccessibleListener listener = (AccessibleListener) accessibleListeners.elementAt(i); + listener.getName(event); + } + if (event.result is null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszName, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + /* get_accParent([out] ppdispParent) + * Ownership of ppdispParent transfers from callee to caller so reference count on ppdispParent + * must be incremented before returning. The caller is responsible for releasing ppdispParent. + */ + int get_accParent(int /*long*/ ppdispParent) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + return iaccessible.get_accParent(ppdispParent); + } + + int get_accRole(int /*long*/ variant, int /*long*/ pvarRole) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default role from the OS. */ + int osRole = COM.ROLE_SYSTEM_CLIENT; + int code = iaccessible.get_accRole(variant, pvarRole); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + // TEMPORARY CODE - process tree and table even if there are no apps listening + if (accessibleControlListeners.size() is 0 && !(control instanceof Tree || control instanceof Table)) return code; + if (code is COM.S_OK) { + short[] pvt = new short[1]; + COM.MoveMemory(pvt, pvarRole, 2); + if (pvt[0] is COM.VT_I4) { + int[] pRole = new int[1]; + COM.MoveMemory(pRole, pvarRole + 8, 4); + osRole = pRole[0]; + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.detail = osToRole(osRole); + // TEMPORARY CODE + /* Currently our checkbox table and tree are emulated using state mask + * images, so we need to specify 'checkbox' role for the items. */ + if (v.lVal !is COM.CHILDID_SELF) { + if (control instanceof Tree || control instanceof Table) { + if ((control.getStyle() & DWT.CHECK) !is 0) event.detail = ACC.ROLE_CHECKBUTTON; + } + } + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getRole(event); + } + int role = roleToOs(event.detail); + COM.MoveMemory(pvarRole, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarRole + 8, new int[] { role }, 4); + return COM.S_OK; + } + + /* get_accSelection([out] pvarChildren) + * Ownership of pvarChildren transfers from callee to caller so reference count on pvarChildren + * must be incremented before returning. The caller is responsible for releasing pvarChildren. + */ + int get_accSelection(int /*long*/ pvarChildren) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + + /* Get the default selection from the OS. */ + int osChild = ACC.CHILDID_NONE; + int code = iaccessible.get_accSelection(pvarChildren); + if (accessibleControlListeners.size() is 0) return code; + if (code is COM.S_OK) { + short[] pvt = new short[1]; + COM.MoveMemory(pvt, pvarChildren, 2); + if (pvt[0] is COM.VT_I4) { + int[] pChild = new int[1]; + COM.MoveMemory(pChild, pvarChildren + 8, 4); + osChild = osToChildID(pChild[0]); + } else if (pvt[0] is COM.VT_UNKNOWN) { + osChild = ACC.CHILDID_MULTIPLE; + /* Should get IEnumVARIANT from punkVal field, and enumerate children... */ + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osChild; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getSelection(event); + } + Accessible accessible = event.accessible; + if (accessible !is null) { + accessible.AddRef(); + COM.MoveMemory(pvarChildren, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(pvarChildren + 8, new int /*long*/[] { accessible.objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + int childID = event.childID; + if (childID is ACC.CHILDID_NONE) { + COM.MoveMemory(pvarChildren, new short[] { COM.VT_EMPTY }, 2); + return COM.S_FALSE; + } + if (childID is ACC.CHILDID_MULTIPLE) { + AddRef(); + COM.MoveMemory(pvarChildren, new short[] { COM.VT_UNKNOWN }, 2); + COM.MoveMemory(pvarChildren + 8, new int /*long*/[] { objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + if (childID is ACC.CHILDID_SELF) { + AddRef(); + COM.MoveMemory(pvarChildren, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(pvarChildren + 8, new int /*long*/[] { objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + COM.MoveMemory(pvarChildren, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarChildren + 8, new int[] { childIDToOs(childID) }, 4); + return COM.S_OK; + } + + int get_accState(int /*long*/ variant, int /*long*/ pvarState) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default state from the OS. */ + int osState = 0; + int code = iaccessible.get_accState(variant, pvarState); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + // TEMPORARY CODE - process tree and table even if there are no apps listening + if (accessibleControlListeners.size() is 0 && !(control instanceof Tree || control instanceof Table)) return code; + if (code is COM.S_OK) { + short[] pvt = new short[1]; + COM.MoveMemory(pvt, pvarState, 2); + if (pvt[0] is COM.VT_I4) { + int[] pState = new int[1]; + COM.MoveMemory(pState, pvarState + 8, 4); + osState = pState[0]; + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.detail = osToState(osState); + // TEMPORARY CODE + /* Currently our checkbox table and tree are emulated using state mask + * images, so we need to determine if the item state is 'checked'. */ + if (v.lVal !is COM.CHILDID_SELF) { + if (control instanceof Tree && (control.getStyle() & DWT.CHECK) !is 0) { + int /*long*/ hwnd = control.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + if (OS.COMCTL32_MAJOR >= 6) { + tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_MAPACCIDTOHTREEITEM, v.lVal, 0); + } else { + tvItem.hItem = v.lVal; + } + int /*long*/ result = OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + bool checked = (result !is 0) && (((tvItem.state >> 12) & 1) is 0); + if (checked) event.detail |= ACC.STATE_CHECKED; + } else if (control instanceof Table && (control.getStyle() & DWT.CHECK) !is 0) { + Table table = (Table) control; + TableItem item = table.getItem(event.childID); + if (item !is null) { + if (item.getChecked()) event.detail |= ACC.STATE_CHECKED; + } + } + } + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getState(event); + } + int state = stateToOs(event.detail); + COM.MoveMemory(pvarState, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarState + 8, new int[] { state }, 4); + return COM.S_OK; + } + + int get_accValue(int /*long*/ variant, int /*long*/ pszValue) { + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) !is COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default value string from the OS. */ + String osValue = null; + int code = iaccessible.get_accValue(variant, pszValue); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleControlListeners.size() is 0) return code; + if (code is COM.S_OK) { + int /*long*/[] pValue = new int /*long*/[1]; + COM.MoveMemory(pValue, pszValue, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pValue[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pValue[0], size); + osValue = new String(buffer); + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID((int)/*64*/v.lVal); + event.result = osValue; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getValue(event); + } + if (event.result is null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszValue, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + int put_accName(int /*long*/ variant, int /*long*/ szName) { + // MSAA: this method is no longer supported + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + // We don't implement this. Forward to the proxy. + int code = iaccessible.put_accName(variant, szName); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + int put_accValue(int /*long*/ variant, int /*long*/ szValue) { + // MSAA: this method is typically only used for edit controls + if (iaccessible is null) return COM.CO_E_OBJNOTCONNECTED; + // We don't implement this. Forward to the proxy. + int code = iaccessible.put_accValue(variant, szValue); + if (code is COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + /* IEnumVARIANT methods: Next, Skip, Reset, Clone */ + /* Retrieve the next celt items in the enumeration sequence. + * If there are fewer than the requested number of elements left + * in the sequence, retrieve the remaining elements. + * The number of elements actually retrieved is returned in pceltFetched + * (unless the caller passed in NULL for that parameter). + */ + + /* Next([in] celt, [out] rgvar, [in, out] pceltFetched) + * Ownership of rgvar transfers from callee to caller so reference count on rgvar + * must be incremented before returning. The caller is responsible for releasing rgvar. + */ + int Next(int celt, int /*long*/ rgvar, int /*long*/ pceltFetched) { + /* If there are no listeners, query the proxy for + * its IEnumVariant, and get the Next items from it. + */ + if (accessibleControlListeners.size() is 0) { + int /*long*/[] ppvObject = new int /*long*/[1]; + int code = iaccessible.QueryInterface(COM.IIDIEnumVARIANT, ppvObject); + if (code !is COM.S_OK) return code; + IEnumVARIANT ienumvariant = new IEnumVARIANT(ppvObject[0]); + int[] celtFetched = new int[1]; + code = ienumvariant.Next(celt, rgvar, celtFetched); + ienumvariant.Release(); + COM.MoveMemory(pceltFetched, celtFetched, 4); + return code; + } + + if (rgvar is 0) return COM.E_INVALIDARG; + if (pceltFetched is 0 && celt !is 1) return COM.E_INVALIDARG; + if (enumIndex is 0) { + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = ACC.CHILDID_SELF; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getChildren(event); + } + variants = event.children; + } + Object[] nextItems = null; + if (variants !is null && celt >= 1) { + int endIndex = enumIndex + celt - 1; + if (endIndex > (variants.length - 1)) endIndex = variants.length - 1; + if (enumIndex <= endIndex) { + nextItems = new Object[endIndex - enumIndex + 1]; + for (int i = 0; i < nextItems.length; i++) { + Object child = variants[enumIndex]; + if (child instanceof Integer) { + nextItems[i] = new Integer(childIDToOs(((Integer)child).intValue())); + } else { + nextItems[i] = child; + } + enumIndex++; + } + } + } + if (nextItems !is null) { + for (int i = 0; i < nextItems.length; i++) { + Object nextItem = nextItems[i]; + if (nextItem instanceof Integer) { + int item = ((Integer) nextItem).intValue(); + COM.MoveMemory(rgvar + i * 16, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(rgvar + i * 16 + 8, new int[] { item }, 4); + } else { + Accessible accessible = (Accessible) nextItem; + accessible.AddRef(); + COM.MoveMemory(rgvar + i * 16, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(rgvar + i * 16 + 8, new int /*long*/[] { accessible.objIAccessible.getAddress() }, OS.PTR_SIZEOF); + } + } + if (pceltFetched !is 0) + COM.MoveMemory(pceltFetched, new int[] {nextItems.length}, 4); + if (nextItems.length is celt) return COM.S_OK; + } else { + if (pceltFetched !is 0) + COM.MoveMemory(pceltFetched, new int[] {0}, 4); + } + return COM.S_FALSE; + } + + /* Skip over the specified number of elements in the enumeration sequence. */ + int Skip(int celt) { + /* If there are no listeners, query the proxy + * for its IEnumVariant, and tell it to Skip. + */ + if (accessibleControlListeners.size() is 0) { + int /*long*/[] ppvObject = new int /*long*/[1]; + int code = iaccessible.QueryInterface(COM.IIDIEnumVARIANT, ppvObject); + if (code !is COM.S_OK) return code; + IEnumVARIANT ienumvariant = new IEnumVARIANT(ppvObject[0]); + code = ienumvariant.Skip(celt); + ienumvariant.Release(); + return code; + } + + if (celt < 1 ) return COM.E_INVALIDARG; + enumIndex += celt; + if (enumIndex > (variants.length - 1)) { + enumIndex = variants.length - 1; + return COM.S_FALSE; + } + return COM.S_OK; + } + + /* Reset the enumeration sequence to the beginning. */ + int Reset() { + /* If there are no listeners, query the proxy + * for its IEnumVariant, and tell it to Reset. + */ + if (accessibleControlListeners.size() is 0) { + int /*long*/[] ppvObject = new int /*long*/[1]; + int code = (int)/*64*/iaccessible.QueryInterface(COM.IIDIEnumVARIANT, ppvObject); + if (code !is COM.S_OK) return code; + IEnumVARIANT ienumvariant = new IEnumVARIANT(ppvObject[0]); + code = ienumvariant.Reset(); + ienumvariant.Release(); + return code; + } + + enumIndex = 0; + return COM.S_OK; + } + + /* Clone([out] ppEnum) + * Ownership of ppEnum transfers from callee to caller so reference count on ppEnum + * must be incremented before returning. The caller is responsible for releasing ppEnum. + */ + int Clone(int /*long*/ ppEnum) { + /* If there are no listeners, query the proxy for + * its IEnumVariant, and get the Clone from it. + */ + if (accessibleControlListeners.size() is 0) { + int /*long*/[] ppvObject = new int /*long*/[1]; + int code = iaccessible.QueryInterface(COM.IIDIEnumVARIANT, ppvObject); + if (code !is COM.S_OK) return code; + IEnumVARIANT ienumvariant = new IEnumVARIANT(ppvObject[0]); + int[] pEnum = new int[1]; + code = ienumvariant.Clone(pEnum); + ienumvariant.Release(); + COM.MoveMemory(ppEnum, pEnum, 4); + return code; + } + + if (ppEnum is 0) return COM.E_INVALIDARG; + COM.MoveMemory(ppEnum, new int /*long*/[] { objIEnumVARIANT.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + return COM.S_OK; + } + + int childIDToOs(int childID) { + if (childID is ACC.CHILDID_SELF) return COM.CHILDID_SELF; + /* + * Feature of Windows: + * In Windows XP, tree item ids are 1-based indices. Previous versions + * of Windows use the tree item handle for the accessible child ID. + * For backward compatibility, we still take a handle childID for tree + * items on XP. All other childIDs are 1-based indices. + */ + if (!(control instanceof Tree)) return childID + 1; + if (OS.COMCTL32_MAJOR < 6) return childID; + return (int)/*64*/OS.SendMessage (control.handle, OS.TVM_MAPHTREEITEMTOACCID, childID, 0); + } + + int osToChildID(int osChildID) { + if (osChildID is COM.CHILDID_SELF) return ACC.CHILDID_SELF; + /* + * Feature of Windows: + * In Windows XP, tree item ids are 1-based indices. Previous versions + * of Windows use the tree item handle for the accessible child ID. + * For backward compatibility, we still take a handle childID for tree + * items on XP. All other childIDs are 1-based indices. + */ + if (!(control instanceof Tree)) return osChildID - 1; + if (OS.COMCTL32_MAJOR < 6) return osChildID; + return (int)/*64*/OS.SendMessage (control.handle, OS.TVM_MAPACCIDTOHTREEITEM, osChildID, 0); + } + + int stateToOs(int state) { + int osState = 0; + if ((state & ACC.STATE_SELECTED) !is 0) osState |= COM.STATE_SYSTEM_SELECTED; + if ((state & ACC.STATE_SELECTABLE) !is 0) osState |= COM.STATE_SYSTEM_SELECTABLE; + if ((state & ACC.STATE_MULTISELECTABLE) !is 0) osState |= COM.STATE_SYSTEM_MULTISELECTABLE; + if ((state & ACC.STATE_FOCUSED) !is 0) osState |= COM.STATE_SYSTEM_FOCUSED; + if ((state & ACC.STATE_FOCUSABLE) !is 0) osState |= COM.STATE_SYSTEM_FOCUSABLE; + if ((state & ACC.STATE_PRESSED) !is 0) osState |= COM.STATE_SYSTEM_PRESSED; + if ((state & ACC.STATE_CHECKED) !is 0) osState |= COM.STATE_SYSTEM_CHECKED; + if ((state & ACC.STATE_EXPANDED) !is 0) osState |= COM.STATE_SYSTEM_EXPANDED; + if ((state & ACC.STATE_COLLAPSED) !is 0) osState |= COM.STATE_SYSTEM_COLLAPSED; + if ((state & ACC.STATE_HOTTRACKED) !is 0) osState |= COM.STATE_SYSTEM_HOTTRACKED; + if ((state & ACC.STATE_BUSY) !is 0) osState |= COM.STATE_SYSTEM_BUSY; + if ((state & ACC.STATE_READONLY) !is 0) osState |= COM.STATE_SYSTEM_READONLY; + if ((state & ACC.STATE_INVISIBLE) !is 0) osState |= COM.STATE_SYSTEM_INVISIBLE; + if ((state & ACC.STATE_OFFSCREEN) !is 0) osState |= COM.STATE_SYSTEM_OFFSCREEN; + if ((state & ACC.STATE_SIZEABLE) !is 0) osState |= COM.STATE_SYSTEM_SIZEABLE; + if ((state & ACC.STATE_LINKED) !is 0) osState |= COM.STATE_SYSTEM_LINKED; + return osState; + } + + int osToState(int osState) { + int state = ACC.STATE_NORMAL; + if ((osState & COM.STATE_SYSTEM_SELECTED) !is 0) state |= ACC.STATE_SELECTED; + if ((osState & COM.STATE_SYSTEM_SELECTABLE) !is 0) state |= ACC.STATE_SELECTABLE; + if ((osState & COM.STATE_SYSTEM_MULTISELECTABLE) !is 0) state |= ACC.STATE_MULTISELECTABLE; + if ((osState & COM.STATE_SYSTEM_FOCUSED) !is 0) state |= ACC.STATE_FOCUSED; + if ((osState & COM.STATE_SYSTEM_FOCUSABLE) !is 0) state |= ACC.STATE_FOCUSABLE; + if ((osState & COM.STATE_SYSTEM_PRESSED) !is 0) state |= ACC.STATE_PRESSED; + if ((osState & COM.STATE_SYSTEM_CHECKED) !is 0) state |= ACC.STATE_CHECKED; + if ((osState & COM.STATE_SYSTEM_EXPANDED) !is 0) state |= ACC.STATE_EXPANDED; + if ((osState & COM.STATE_SYSTEM_COLLAPSED) !is 0) state |= ACC.STATE_COLLAPSED; + if ((osState & COM.STATE_SYSTEM_HOTTRACKED) !is 0) state |= ACC.STATE_HOTTRACKED; + if ((osState & COM.STATE_SYSTEM_BUSY) !is 0) state |= ACC.STATE_BUSY; + if ((osState & COM.STATE_SYSTEM_READONLY) !is 0) state |= ACC.STATE_READONLY; + if ((osState & COM.STATE_SYSTEM_INVISIBLE) !is 0) state |= ACC.STATE_INVISIBLE; + if ((osState & COM.STATE_SYSTEM_OFFSCREEN) !is 0) state |= ACC.STATE_OFFSCREEN; + if ((osState & COM.STATE_SYSTEM_SIZEABLE) !is 0) state |= ACC.STATE_SIZEABLE; + if ((osState & COM.STATE_SYSTEM_LINKED) !is 0) state |= ACC.STATE_LINKED; + return state; + } + + int roleToOs(int role) { + switch (role) { + case ACC.ROLE_CLIENT_AREA: return COM.ROLE_SYSTEM_CLIENT; + case ACC.ROLE_WINDOW: return COM.ROLE_SYSTEM_WINDOW; + case ACC.ROLE_MENUBAR: return COM.ROLE_SYSTEM_MENUBAR; + case ACC.ROLE_MENU: return COM.ROLE_SYSTEM_MENUPOPUP; + case ACC.ROLE_MENUITEM: return COM.ROLE_SYSTEM_MENUITEM; + case ACC.ROLE_SEPARATOR: return COM.ROLE_SYSTEM_SEPARATOR; + case ACC.ROLE_TOOLTIP: return COM.ROLE_SYSTEM_TOOLTIP; + case ACC.ROLE_SCROLLBAR: return COM.ROLE_SYSTEM_SCROLLBAR; + case ACC.ROLE_DIALOG: return COM.ROLE_SYSTEM_DIALOG; + case ACC.ROLE_LABEL: return COM.ROLE_SYSTEM_STATICTEXT; + case ACC.ROLE_PUSHBUTTON: return COM.ROLE_SYSTEM_PUSHBUTTON; + case ACC.ROLE_CHECKBUTTON: return COM.ROLE_SYSTEM_CHECKBUTTON; + case ACC.ROLE_RADIOBUTTON: return COM.ROLE_SYSTEM_RADIOBUTTON; + case ACC.ROLE_COMBOBOX: return COM.ROLE_SYSTEM_COMBOBOX; + case ACC.ROLE_TEXT: return COM.ROLE_SYSTEM_TEXT; + case ACC.ROLE_TOOLBAR: return COM.ROLE_SYSTEM_TOOLBAR; + case ACC.ROLE_LIST: return COM.ROLE_SYSTEM_LIST; + case ACC.ROLE_LISTITEM: return COM.ROLE_SYSTEM_LISTITEM; + case ACC.ROLE_TABLE: return COM.ROLE_SYSTEM_TABLE; + case ACC.ROLE_TABLECELL: return COM.ROLE_SYSTEM_CELL; + case ACC.ROLE_TABLECOLUMNHEADER: return COM.ROLE_SYSTEM_COLUMNHEADER; + case ACC.ROLE_TABLEROWHEADER: return COM.ROLE_SYSTEM_ROWHEADER; + case ACC.ROLE_TREE: return COM.ROLE_SYSTEM_OUTLINE; + case ACC.ROLE_TREEITEM: return COM.ROLE_SYSTEM_OUTLINEITEM; + case ACC.ROLE_TABFOLDER: return COM.ROLE_SYSTEM_PAGETABLIST; + case ACC.ROLE_TABITEM: return COM.ROLE_SYSTEM_PAGETAB; + case ACC.ROLE_PROGRESSBAR: return COM.ROLE_SYSTEM_PROGRESSBAR; + case ACC.ROLE_SLIDER: return COM.ROLE_SYSTEM_SLIDER; + case ACC.ROLE_LINK: return COM.ROLE_SYSTEM_LINK; + } + return COM.ROLE_SYSTEM_CLIENT; + } + + int osToRole(int osRole) { + switch (osRole) { + case COM.ROLE_SYSTEM_CLIENT: return ACC.ROLE_CLIENT_AREA; + case COM.ROLE_SYSTEM_WINDOW: return ACC.ROLE_WINDOW; + case COM.ROLE_SYSTEM_MENUBAR: return ACC.ROLE_MENUBAR; + case COM.ROLE_SYSTEM_MENUPOPUP: return ACC.ROLE_MENU; + case COM.ROLE_SYSTEM_MENUITEM: return ACC.ROLE_MENUITEM; + case COM.ROLE_SYSTEM_SEPARATOR: return ACC.ROLE_SEPARATOR; + case COM.ROLE_SYSTEM_TOOLTIP: return ACC.ROLE_TOOLTIP; + case COM.ROLE_SYSTEM_SCROLLBAR: return ACC.ROLE_SCROLLBAR; + case COM.ROLE_SYSTEM_DIALOG: return ACC.ROLE_DIALOG; + case COM.ROLE_SYSTEM_STATICTEXT: return ACC.ROLE_LABEL; + case COM.ROLE_SYSTEM_PUSHBUTTON: return ACC.ROLE_PUSHBUTTON; + case COM.ROLE_SYSTEM_CHECKBUTTON: return ACC.ROLE_CHECKBUTTON; + case COM.ROLE_SYSTEM_RADIOBUTTON: return ACC.ROLE_RADIOBUTTON; + case COM.ROLE_SYSTEM_COMBOBOX: return ACC.ROLE_COMBOBOX; + case COM.ROLE_SYSTEM_TEXT: return ACC.ROLE_TEXT; + case COM.ROLE_SYSTEM_TOOLBAR: return ACC.ROLE_TOOLBAR; + case COM.ROLE_SYSTEM_LIST: return ACC.ROLE_LIST; + case COM.ROLE_SYSTEM_LISTITEM: return ACC.ROLE_LISTITEM; + case COM.ROLE_SYSTEM_TABLE: return ACC.ROLE_TABLE; + case COM.ROLE_SYSTEM_CELL: return ACC.ROLE_TABLECELL; + case COM.ROLE_SYSTEM_COLUMNHEADER: return ACC.ROLE_TABLECOLUMNHEADER; + case COM.ROLE_SYSTEM_ROWHEADER: return ACC.ROLE_TABLEROWHEADER; + case COM.ROLE_SYSTEM_OUTLINE: return ACC.ROLE_TREE; + case COM.ROLE_SYSTEM_OUTLINEITEM: return ACC.ROLE_TREEITEM; + case COM.ROLE_SYSTEM_PAGETABLIST: return ACC.ROLE_TABFOLDER; + case COM.ROLE_SYSTEM_PAGETAB: return ACC.ROLE_TABITEM; + case COM.ROLE_SYSTEM_PROGRESSBAR: return ACC.ROLE_PROGRESSBAR; + case COM.ROLE_SYSTEM_SLIDER: return ACC.ROLE_SLIDER; + case COM.ROLE_SYSTEM_LINK: return ACC.ROLE_LINK; + } + return ACC.ROLE_CLIENT_AREA; + } + + /* checkWidget was copied from Widget, and rewritten to work in this package */ + void checkWidget () { + if (!isValidThread ()) DWT.error (DWT.ERROR_THREAD_INVALID_ACCESS); + if (control.isDisposed ()) DWT.error (DWT.ERROR_WIDGET_DISPOSED); + } + + /* isValidThread was copied from Widget, and rewritten to work in this package */ + bool isValidThread () { + return control.getDisplay ().getThread () is Thread.currentThread (); + } +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleAdapter.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,132 @@ +/******************************************************************************* + * Copyright (c) 2000, 2003 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleAdapter; + +import dwt.accessibility.AccessibleListener; +import dwt.accessibility.AccessibleEvent; + +/** + * This adapter class provides default implementations for the + * methods described by the <code>AccessibleListener</code> interface. + * <p> + * Classes that wish to deal with <code>AccessibleEvent</code>s can + * extend this class and override only the methods that they are + * interested in. + * </p><p> + * Note: Accessibility clients use child identifiers to specify + * whether they want information about a control or one of its children. + * Child identifiers are increasing integers beginning with 0. + * The identifier CHILDID_SELF represents the control itself. + * </p> + * + * @see AccessibleListener + * @see AccessibleEvent + * + * @since 2.0 + */ +public abstract class AccessibleAdapter : AccessibleListener { + + /** + * Sent when an accessibility client requests the name + * of the control, or the name of a child of the control. + * The default behavior is to do nothing. + * <p> + * Return the name of the control or specified child in the + * <code>result</code> field of the event object. Returning + * an empty string tells the client that the control or child + * does not have a name, and returning null tells the client + * to use the platform name. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested name string, or null</li> + * </ul> + */ + public void getName(AccessibleEvent e) { + } + + /** + * Sent when an accessibility client requests the help string + * of the control, or the help string of a child of the control. + * The default behavior is to do nothing. + * <p> + * The information in this property should be similar to the help + * provided by toolTipText. It describes what the control or child + * does or how to use it, as opposed to getDescription, which + * describes appearance. + * </p><p> + * Return the help string of the control or specified child in + * the <code>result</code> field of the event object. Returning + * an empty string tells the client that the control or child + * does not have a help string, and returning null tells the + * client to use the platform help string. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested help string, or null</li> + * </ul> + */ + public void getHelp(AccessibleEvent e) { + } + + /** + * Sent when an accessibility client requests the keyboard shortcut + * of the control, or the keyboard shortcut of a child of the control. + * The default behavior is to do nothing. + * <p> + * A keyboard shortcut can either be a mnemonic, or an accelerator. + * As a general rule, if the control or child can receive keyboard focus, + * then you should expose its mnemonic, and if it cannot receive keyboard + * focus, then you should expose its accelerator. + * </p><p> + * Return the keyboard shortcut string of the control or specified child + * in the <code>result</code> field of the event object. Returning an + * empty string tells the client that the control or child does not + * have a keyboard shortcut string, and returning null tells the client + * to use the platform keyboard shortcut string. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested keyboard shortcut string (example: "ALT+N"), or null</li> + * </ul> + */ + public void getKeyboardShortcut(AccessibleEvent e) { + } + + /** + * Sent when an accessibility client requests a description + * of the control, or a description of a child of the control. + * The default behavior is to do nothing. + * <p> + * This is a textual description of the control or child's visual + * appearance, which is typically only necessary if it cannot be + * determined from other properties such as role. + * </p><p> + * Return the description of the control or specified child in + * the <code>result</code> field of the event object. Returning + * an empty string tells the client that the control or child + * does not have a description, and returning null tells the + * client to use the platform description. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested description string, or null</li> + * </ul> + */ + public void getDescription(AccessibleEvent e) { + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleControlAdapter.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,255 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleControlAdapter; + +import dwt.accessibility.AccessibleControlListener; +import dwt.accessibility.AccessibleControlEvent; + +/** + * This adapter class provides default implementations for the + * methods described by the <code>AccessibleControlListener</code> interface. + * <p> + * Classes that wish to deal with <code>AccessibleControlEvent</code>s can + * extend this class and override only the methods that they are + * interested in. + * </p><p> + * Note: Accessibility clients use child identifiers to specify + * whether they want information about a control or one of its children. + * Child identifiers are increasing integers beginning with 0. + * The identifier CHILDID_SELF represents the control itself. + * When returning a child identifier to a client, you may use CHILDID_NONE + * to indicate that no child or control has the required information. + * </p><p> + * Note: This adapter is typically used by implementors of + * a custom control to provide very detailed information about + * the control instance to accessibility clients. + * </p> + * + * @see AccessibleControlListener + * @see AccessibleControlEvent + * + * @since 2.0 + */ +public abstract class AccessibleControlAdapter : AccessibleControlListener { + + /** + * Sent when an accessibility client requests the identifier + * of the control child at the specified display coordinates. + * The default behavior is to do nothing. + * <p> + * Return the identifier of the child at display point (x, y) + * in the <code>childID</code> field of the event object. + * Return CHILDID_SELF if point (x, y) is in the control itself + * and not in any child. Return CHILDID_NONE if point (x, y) + * is not contained in either the control or any of its children. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>x, y [IN] - the specified point in display coordinates</li> + * <li>childID [Typical OUT] - the ID of the child at point, or CHILDID_SELF, or CHILDID_NONE</li> + * <li>accessible [Optional OUT] - the accessible object for the control or child may be returned instead of the childID</li> + * </ul> + */ + public void getChildAtPoint(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the location + * of the control, or the location of a child of the control. + * The default behavior is to do nothing. + * <p> + * Return a rectangle describing the location of the specified + * control or child in the <code>x, y, width, and height</code> + * fields of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>x, y, width, height [OUT] - the control or child location in display coordinates</li> + * </ul> + */ + public void getLocation(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the accessible object + * for a child of the control. + * The default behavior is to do nothing. + * <p> + * Return an <code>Accessible</code> for the specified control or + * child in the <code>accessible</code> field of the event object. + * Return null if the specified child does not have its own + * <code>Accessible</code>. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying a child of the control</li> + * <li>accessible [OUT] - an Accessible for the specified childID, or null if one does not exist</li> + * </ul> + */ + public void getChild(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the number of + * children in the control. + * The default behavior is to do nothing. + * <p> + * Return the number of child items in the <code>detail</code> + * field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>detail [OUT] - the number of child items in this control</li> + * </ul> + */ + public void getChildCount(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the default action + * of the control, or the default action of a child of the control. + * The default behavior is to do nothing. + * <p> + * This string is typically a verb describing what the user does to it. + * For example, a Push Button's default action is "Press", a Check Button's + * is "Check" or "UnCheck", and List items have the default action "Double Click". + * </p><p> + * Return a string describing the default action of the specified + * control or child in the <code>result</code> field of the event object. + * Returning null tells the client to use the platform default action string. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested default action string, or null</li> + * </ul> + */ + public void getDefaultAction(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the identity of + * the child or control that has keyboard focus. + * The default behavior is to do nothing. + * <p> + * Return the identifier of the child that has focus in the + * <code>childID</code> field of the event object. + * Return CHILDID_SELF if the control itself has keyboard focus. + * Return CHILDID_NONE if neither the control nor any of its children has focus. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [Typical OUT] - the ID of the child with focus, or CHILDID_SELF, or CHILDID_NONE</li> + * <li>accessible [Optional OUT] - the accessible object for a child may be returned instead of its childID</li> + * </ul> + */ + public void getFocus(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the role + * of the control, or the role of a child of the control. + * The default behavior is to do nothing. + * <p> + * Return a role constant (constant defined in ACC beginning with ROLE_) + * that describes the role of the specified control or child in the + * <code>detail</code> field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>detail [OUT] - a role constant describing the role of the control or child</li> + * </ul> + */ + public void getRole(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the identity of + * the child or control that is currently selected. + * The default behavior is to do nothing. + * <p> + * Return the identifier of the selected child in the + * <code>childID</code> field of the event object. + * Return CHILDID_SELF if the control itself is selected. + * Return CHILDID_MULTIPLE if multiple children are selected, and return an array of childIDs in the <code>children</code> field. + * Return CHILDID_NONE if neither the control nor any of its children are selected. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [Typical OUT] - the ID of the selected child, or CHILDID_SELF, or CHILDID_MULTIPLE, or CHILDID_NONE</li> + * <li>accessible [Optional OUT] - the accessible object for the control or child may be returned instead of the childID</li> + * </ul> + */ + public void getSelection(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the state + * of the control, or the state of a child of the control. + * The default behavior is to do nothing. + * <p> + * Return a state mask (mask bit constants defined in ACC beginning with STATE_) + * that describes the current state of the specified control or child in the + * <code>detail</code> field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>detail [OUT] - a state mask describing the current state of the control or child</li> + * </ul> + */ + public void getState(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the value + * of the control, or the value of a child of the control. + * The default behavior is to do nothing. + * <p> + * Many controls do not return a value. Examples of controls + * that do are: Combo returns the text string, Text returns + * its contents, ProgressBar returns a string representing a + * percentage, and Tree items return a string representing + * their level in the tree. + * </p><p> + * Return a string describing the value of the specified control + * or child in the <code>result</code> field of the event object. + * Returning null tells the client to use the platform value string. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested value string, or null</li> + * </ul> + */ + public void getValue(AccessibleControlEvent e) { + } + + /** + * Sent when an accessibility client requests the children of the control. + * The default behavior is to do nothing. + * <p> + * Return the children as an array of childIDs in the <code>children</code> + * field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>children [Typical OUT] - an array of childIDs</li> + * <li>accessible [Optional OUT] - an array of accessible objects for the children may be returned instead of the childIDs</li> + * </ul> + */ + public void getChildren(AccessibleControlEvent e) { + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleControlEvent.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,66 @@ +/******************************************************************************* + * Copyright (c) 2000, 2004 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleControlEvent; + +import dwt.accessibility.Accessible; + +import dwt.internal.DWTEventObject; +import tango.text.convert.Format; + +/** + * Instances of this class are sent as a result of + * accessibility clients sending messages to controls + * asking for detailed information about the implementation + * of the control instance. Typically, only implementors + * of custom controls need to listen for this event. + * <p> + * Note: The meaning of each field depends on the + * message that was sent. + * </p> + * + * @see AccessibleControlListener + * @see AccessibleControlAdapter + * + * @since 2.0 + */ +public class AccessibleControlEvent : DWTEventObject { + public int childID; // IN/OUT + public Accessible accessible; // OUT + public int x, y; // IN/OUT + public int width, height; // OUT + public int detail; // IN/OUT + public char[] result; // OUT + public Object children[]; // [OUT] + + //static final long serialVersionUID = 3257281444169529141L; + +/** + * Constructs a new instance of this class. + * + * @param source the object that fired the event + */ +public this(Object source) { + super(source); +} + +/** + * Returns a string containing a concise, human-readable + * description of the receiver. + * + * @return a string representation of the event + */ +public char[] toString () { + return Format( "AccessibleControlEvent {childID={} accessible={} x={} y={} width={} heigth={} detail={} result={}", + childID, accessible, x, y, width, height, detail, result); +} +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleControlListener.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,235 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleControlListener; + +import dwt.accessibility.AccessibleControlEvent; +import dwt.internal.DWTEventListener; + +/** + * Classes that implement this interface provide methods + * that deal with the events that are generated when an + * accessibility client sends a message to a control. + * <p> + * After creating an instance of a class that implements + * this interface it can be added to a control using the + * <code>addAccessibleControlListener</code> method and removed + * using the <code>removeAccessibleControlListener</code> method. + * When a client requests information the appropriate method + * will be invoked. + * </p><p> + * Note: Accessibility clients use child identifiers to specify + * whether they want information about a control or one of its children. + * Child identifiers are increasing integers beginning with 0. + * The identifier CHILDID_SELF represents the control itself. + * </p><p> + * Note: This interface is typically used by implementors of + * a custom control to provide very detailed information about + * the control instance to accessibility clients. + * </p> + * + * @see AccessibleControlAdapter + * @see AccessibleControlEvent + * + * @since 2.0 + */ +public interface AccessibleControlListener : DWTEventListener { + + /** + * Sent when an accessibility client requests the identifier + * of the control child at the specified display coordinates. + * <p> + * Return the identifier of the child at display point (x, y) + * in the <code>childID</code> field of the event object. + * Return CHILDID_SELF if point (x, y) is in the control itself + * and not in any child. Return CHILDID_NONE if point (x, y) + * is not contained in either the control or any of its children. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>x, y [IN] - the specified point in display coordinates</li> + * <li>childID [Typical OUT] - the ID of the child at point, or CHILDID_SELF, or CHILDID_NONE</li> + * <li>accessible [Optional OUT] - the accessible object for the control or child may be returned instead of the childID</li> + * </ul> + */ + public void getChildAtPoint(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the location + * of the control, or the location of a child of the control. + * <p> + * Return a rectangle describing the location of the specified + * control or child in the <code>x, y, width, and height</code> + * fields of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>x, y, width, height [OUT] - the control or child location in display coordinates</li> + * </ul> + */ + public void getLocation(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the accessible object + * for a child of the control. + * <p> + * Return an <code>Accessible</code> for the specified control or + * child in the <code>accessible</code> field of the event object. + * Return null if the specified child does not have its own + * <code>Accessible</code>. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying a child of the control</li> + * <li>accessible [OUT] - an Accessible for the specified childID, or null if one does not exist</li> + * </ul> + */ + public void getChild(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the number of + * children in the control. + * <p> + * Return the number of child items in the <code>detail</code> + * field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>detail [OUT] - the number of child items in this control</li> + * </ul> + */ + public void getChildCount(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the default action + * of the control, or the default action of a child of the control. + * <p> + * This string is typically a verb describing what the user does to it. + * For example, a Push Button's default action is "Press", a Check Button's + * is "Check" or "UnCheck", and List items have the default action "Double Click". + * </p><p> + * Return a string describing the default action of the specified + * control or child in the <code>result</code> field of the event object. + * Returning null tells the client to use the platform default action string. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested default action string, or null</li> + * </ul> + */ + public void getDefaultAction(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the identity of + * the child or control that has keyboard focus. + * <p> + * Return the identifier of the child that has focus in the + * <code>childID</code> field of the event object. + * Return CHILDID_SELF if the control itself has keyboard focus. + * Return CHILDID_NONE if neither the control nor any of its children has focus. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [Typical OUT] - the ID of the child with focus, or CHILDID_SELF, or CHILDID_NONE</li> + * <li>accessible [Optional OUT] - the accessible object for a child may be returned instead of its childID</li> + * </ul> + */ + public void getFocus(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the role + * of the control, or the role of a child of the control. + * <p> + * Return a role constant (constant defined in ACC beginning with ROLE_) + * that describes the role of the specified control or child in the + * <code>detail</code> field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>detail [OUT] - a role constant describing the role of the control or child</li> + * </ul> + */ + public void getRole(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the identity of + * the child or control that is currently selected. + * <p> + * Return the identifier of the selected child in the + * <code>childID</code> field of the event object. + * Return CHILDID_SELF if the control itself is selected. + * Return CHILDID_MULTIPLE if multiple children are selected, and return an array of childIDs in the <code>children</code> field. + * Return CHILDID_NONE if neither the control nor any of its children are selected. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [Typical OUT] - the ID of the selected child, or CHILDID_SELF, or CHILDID_MULTIPLE, or CHILDID_NONE</li> + * <li>accessible [Optional OUT] - the accessible object for the control or child may be returned instead of the childID</li> + * </ul> + */ + public void getSelection(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the state + * of the control, or the state of a child of the control. + * <p> + * Return a state mask (mask bit constants defined in ACC beginning with STATE_) + * that describes the current state of the specified control or child in the + * <code>detail</code> field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>detail [OUT] - a state mask describing the current state of the control or child</li> + * </ul> + */ + public void getState(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the value + * of the control, or the value of a child of the control. + * <p> + * Many controls do not return a value. Examples of controls + * that do are: Combo returns the text string, Text returns + * its contents, ProgressBar returns a string representing a + * percentage, and Tree items return a string representing + * their level in the tree. + * </p><p> + * Return a string describing the value of the specified control + * or child in the <code>result</code> field of the event object. + * Returning null tells the client to use the platform value string. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested value string, or null</li> + * </ul> + */ + public void getValue(AccessibleControlEvent e); + + /** + * Sent when an accessibility client requests the children of the control. + * <p> + * Return the children as an array of childIDs in the <code>children</code> + * field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>children [Typical OUT] - an array of childIDs</li> + * <li>children [Optional OUT] - an array of accessible objects for the children may be returned instead of the childIDs</li> + * </ul> + */ + public void getChildren(AccessibleControlEvent e); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleEvent.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,70 @@ +/******************************************************************************* + * Copyright (c) 2000, 2004 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleEvent; + + +import dwt.internal.DWTEventObject; +import tango.text.convert.Format; + +/** + * Instances of this class are sent as a result of + * accessibility clients sending messages to controls + * asking for information about the control instance. + * <p> + * Note: The meaning of the result field depends + * on the message that was sent. + * </p> + * + * @see AccessibleListener + * @see AccessibleAdapter + * + * @since 2.0 + */ +public class AccessibleEvent : DWTEventObject { + /** + * The value of this field is set by an accessibility client + * before the accessible listener method is called. + * ChildID can be CHILDID_SELF, representing the control itself, + * or a 0-based integer representing a specific child of the control. + */ + public int childID; + + /** + * The value of this field must be set in the accessible listener + * method before returning. + * What to set it to depends on the listener method called, and + * the childID specified by the client. + */ + public char[] result; + + //static final long serialVersionUID = 3257567304224026934L; + +/** + * Constructs a new instance of this class. + * + * @param source the object that fired the event + */ +public this(Object source) { + super(source); +} + +/** + * Returns a string containing a concise, human-readable + * description of the receiver. + * + * @return a string representation of the event + */ +public char[] toString () { + return Format( "AccessibleEvent {childID={} result={}}", childID, result ); +} +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleListener.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,129 @@ +/******************************************************************************* + * Copyright (c) 2000, 2003 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleListener; + + +import dwt.internal.DWTEventListener; +import dwt.accessibility.AccessibleEvent; + +/** + * Classes that implement this interface provide methods + * that deal with the events that are generated when an + * accessibility client sends a message to a control. + * <p> + * After creating an instance of a class that implements + * this interface it can be added to a control using the + * <code>addAccessibleListener</code> method and removed + * using the <code>removeAccessibleListener</code> method. + * When a client requests information, the appropriate method + * will be invoked. + * </p><p> + * Note: Accessibility clients use child identifiers to specify + * whether they want information about a control or one of its children. + * Child identifiers are increasing integers beginning with 0. + * The identifier CHILDID_SELF represents the control itself. + * </p> + * + * @see AccessibleAdapter + * @see AccessibleEvent + * + * @since 2.0 + */ +public interface AccessibleListener : DWTEventListener { + + /** + * Sent when an accessibility client requests the name + * of the control, or the name of a child of the control. + * <p> + * Return the name of the control or specified child in the + * <code>result</code> field of the event object. Returning + * an empty string tells the client that the control or child + * does not have a name, and returning null tells the client + * to use the platform name. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested name string, or null</li> + * </ul> + */ + public void getName(AccessibleEvent e); + + /** + * Sent when an accessibility client requests the help string + * of the control, or the help string of a child of the control. + * <p> + * The information in this property should be similar to the help + * provided by toolTipText. It describes what the control or child + * does or how to use it, as opposed to getDescription, which + * describes appearance. + * </p><p> + * Return the help string of the control or specified child in + * the <code>result</code> field of the event object. Returning + * an empty string tells the client that the control or child + * does not have a help string, and returning null tells the + * client to use the platform help string. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested help string, or null</li> + * </ul> + */ + public void getHelp(AccessibleEvent e); + + /** + * Sent when an accessibility client requests the keyboard shortcut + * of the control, or the keyboard shortcut of a child of the control. + * <p> + * A keyboard shortcut can either be a mnemonic, or an accelerator. + * As a general rule, if the control or child can receive keyboard focus, + * then you should expose its mnemonic, and if it cannot receive keyboard + * focus, then you should expose its accelerator. + * </p><p> + * Return the keyboard shortcut string of the control or specified child + * in the <code>result</code> field of the event object. Returning an + * empty string tells the client that the control or child does not + * have a keyboard shortcut string, and returning null tells the client + * to use the platform keyboard shortcut string. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested keyboard shortcut string (example: "ALT+N"), or null</li> + * </ul> + */ + public void getKeyboardShortcut(AccessibleEvent e); + + /** + * Sent when an accessibility client requests a description + * of the control, or a description of a child of the control. + * <p> + * This is a textual description of the control or child's visual + * appearance, which is typically only necessary if it cannot be + * determined from other properties such as role. + * </p><p> + * Return the description of the control or specified child in + * the <code>result</code> field of the event object. Returning + * an empty string tells the client that the control or child + * does not have a description, and returning null tells the + * client to use the platform description. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying the control or one of its children</li> + * <li>result [OUT] - the requested description string, or null</li> + * </ul> + */ + public void getDescription(AccessibleEvent e); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleTextAdapter.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,79 @@ +/******************************************************************************* + * Copyright (c) 2000, 2003 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleTextAdapter; + +import dwt.accessibility.AccessibleTextEvent; +import dwt.accessibility.AccessibleTextListener; + +/** + * This adapter class provides default implementations for the + * methods described by the <code>AccessibleTextListener</code> interface. + * <p> + * Classes that wish to deal with <code>AccessibleTextEvent</code>s can + * extend this class and override only the methods that they are + * interested in. + * </p><p> + * Note: Accessibility clients use child identifiers to specify + * whether they want information about a control or one of its children. + * Child identifiers are increasing integers beginning with 0. + * The identifier CHILDID_SELF represents the control itself. + * When returning a child identifier to a client, you may use CHILDID_NONE + * to indicate that no child or control has the required information. + * </p><p> + * Note: This adapter is typically used by implementors of + * a custom control to provide very detailed information about + * the control instance to accessibility clients. + * </p> + * + * @see AccessibleTextListener + * @see AccessibleTextEvent + * + * @since 3.0 + */ +public abstract class AccessibleTextAdapter : AccessibleTextListener { + + /** + * Sent when an accessibility client requests the current character offset + * of the text caret. + * The default behavior is to do nothing. + * <p> + * Return the caret offset in the <code>offset</code> + * field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying a child of the control</li> + * <li>offset [OUT] - the current offset of the text caret</li> + * </ul> + */ + public void getCaretOffset (AccessibleTextEvent e) { + } + + /** + * Sent when an accessibility client requests the range of the current + * text selection. + * The default behavior is to do nothing. + * <p> + * Return the selection start offset and non-negative length in the + * <code>offset</code> and <code>length</code> fields of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying a child of the control</li> + * <li>offset [OUT] - the offset of the current text selection</li> + * <li>length [OUT] - the length of the current text selection</li> + * </ul> + */ + public void getSelectionRange (AccessibleTextEvent e) { + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleTextEvent.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,62 @@ +/******************************************************************************* + * Copyright (c) 2000, 2004 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleTextEvent; + + +import dwt.internal.DWTEventObject; +import tango.text.convert.Format; + +/** + * Instances of this class are sent as a result of + * accessibility clients sending messages to controls + * asking for detailed information about the implementation + * of the control instance. Typically, only implementors + * of custom controls need to listen for this event. + * <p> + * Note: The meaning of each field depends on the + * message that was sent. + * </p> + * + * @see AccessibleTextListener + * @see AccessibleTextAdapter + * + * @since 3.0 + */ +public class AccessibleTextEvent : DWTEventObject { + public int childID; // IN + public int offset, length; // OUT + + //static final long serialVersionUID = 3977019530868308275L; + +/** + * Constructs a new instance of this class. + * + * @param source the object that fired the event + */ +public this (Object source) { + super (source); +} + +/** + * Returns a string containing a concise, human-readable + * description of the receiver. + * + * @return a string representation of the event + */ +public char[] toString () { + return Format( "AccessibleTextEvent {{childID={} offset={} length={}}", + childID, + offset, + length); +} +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/accessible/AccessibleTextListener.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,78 @@ +/******************************************************************************* + * Copyright (c) 2000, 2003 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.accessibility.AccessibleTextListener; + +import dwt.accessibility.AccessibleTextEvent; + +import dwt.internal.DWTEventListener; + +/** + * Classes that implement this interface provide methods + * that deal with the events that are generated when an + * accessibility client sends a message to a control. + * <p> + * After creating an instance of a class that implements + * this interface it can be added to a control using the + * <code>addAccessibleTextListener</code> method and removed + * using the <code>removeAccessibleTextListener</code> method. + * When a client requests information the appropriate method + * will be invoked. + * </p><p> + * Note: Accessibility clients use child identifiers to specify + * whether they want information about a control or one of its children. + * Child identifiers are increasing integers beginning with 0. + * The identifier CHILDID_SELF represents the control itself. + * </p><p> + * Note: This interface is typically used by implementors of + * a custom control to provide very detailed information about + * the control instance to accessibility clients. + * </p> + * + * @see AccessibleTextAdapter + * @see AccessibleTextEvent + * + * @since 3.0 + */ +public interface AccessibleTextListener : DWTEventListener { + + /** + * Sent when an accessibility client requests the current character offset + * of the text caret. + * <p> + * Return the caret offset in the <code>offset</code> + * field of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying a child of the control</li> + * <li>offset [OUT] - the current offset of the text caret</li> + * </ul> + */ + public void getCaretOffset (AccessibleTextEvent e); + + /** + * Sent when an accessibility client requests the range of the current + * text selection. + * <p> + * Return the selection start offset and non-negative length in the + * <code>offset</code> and <code>length</code> fields of the event object. + * </p> + * + * @param e an event object containing the following fields:<ul> + * <li>childID [IN] - an identifier specifying a child of the control</li> + * <li>offset [OUT] - the offset of the current text selection</li> + * <li>length [OUT] - the length of the current text selection</li> + * </ul> + */ + public void getSelectionRange (AccessibleTextEvent e); +}
--- a/dwt/graphics/TextLayout.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/graphics/TextLayout.d Mon Jan 28 04:47:28 2008 +0100 @@ -7,6 +7,8 @@ * * Contributors: * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwt.graphics.TextLayout;
--- a/dwt/internal/image/GIFFileFormat.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/GIFFileFormat.d Mon Jan 28 04:47:28 2008 +0100 @@ -22,9 +22,7 @@ import dwt.graphics.ImageLoaderEvent; import dwt.graphics.ImageLoader; import tango.core.Exception; - -///FORTING_TYPE -class Image{} +import dwt.dwthelper.System; final class GIFFileFormat : FileFormat { char[] signature;
--- a/dwt/internal/image/JPEGDecoder.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/JPEGDecoder.d Mon Jan 28 04:47:28 2008 +0100 @@ -24,6 +24,7 @@ import tango.core.Exception; import tango.util.Convert; import Math = tango.math.Math; +import dwt.dwthelper.System; public class JPEGDecoder {
--- a/dwt/internal/image/JPEGFileFormat.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/JPEGFileFormat.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2006 IBM Corporation and others. * All rights reserved. This source file is made available under the terms contained in the README file * accompanying this program. The README file should be located in the about_files directory of the @@ -28,6 +28,7 @@ import dwt.graphics.RGB; import dwt.graphics.PaletteData; +import dwt.dwthelper.System; import tango.core.Exception;
--- a/dwt/internal/image/JPEGFrameHeader.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/JPEGFrameHeader.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2005 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 @@ -17,6 +17,7 @@ import dwt.internal.image.JPEGVariableSizeSegment; import dwt.internal.image.JPEGFileFormat; import dwt.internal.image.LEDataInputStream; +import dwt.dwthelper.System; final class JPEGFrameHeader : JPEGVariableSizeSegment { int maxVFactor;
--- a/dwt/internal/image/JPEGScanHeader.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/JPEGScanHeader.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2005 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 @@ -16,6 +16,7 @@ import dwt.internal.image.JPEGVariableSizeSegment; import dwt.internal.image.LEDataInputStream; import dwt.internal.image.JPEGFileFormat; +import dwt.dwthelper.System; final class JPEGScanHeader : JPEGVariableSizeSegment { public int[][] componentParameters;
--- a/dwt/internal/image/LZWCodec.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/LZWCodec.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2005 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 @@ -22,6 +22,7 @@ import dwt.graphics.ImageLoaderEvent; import tango.core.Exception; +import dwt.dwthelper.System; final class LZWCodec { int bitsPerPixel, blockSize, blockIndex, currentByte, bitsLeft,
--- a/dwt/internal/image/OS2BMPFileFormat.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/OS2BMPFileFormat.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2005 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 @@ -22,6 +22,7 @@ import dwt.dwthelper.ByteArrayOutputStream; import tango.core.Exception; +import dwt.dwthelper.System; final class OS2BMPFileFormat : FileFormat { static final int BMPFileHeaderSize = 14;
--- a/dwt/internal/image/PNGFileFormat.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/PNGFileFormat.d Mon Jan 28 04:47:28 2008 +0100 @@ -31,6 +31,7 @@ import dwt.internal.image.PngDecodingDataStream; import dwt.dwthelper.BufferedInputStream; +import dwt.dwthelper.System; import tango.core.Exception;
--- a/dwt/internal/image/PngChunk.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/PngChunk.d Mon Jan 28 04:47:28 2008 +0100 @@ -24,6 +24,7 @@ import tango.core.Exception; import tango.text.convert.Format; +import dwt.dwthelper.System; class PngChunk { byte[] reference;
--- a/dwt/internal/image/PngIdatChunk.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/PngIdatChunk.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2006 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 @@ -17,6 +17,7 @@ import dwt.internal.image.PngFileReadState; import dwt.internal.image.PngIhdrChunk; import dwt.internal.image.PngChunk; +import dwt.dwthelper.System; class PngIdatChunk : PngChunk {
--- a/dwt/internal/image/TIFFDirectory.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/TIFFDirectory.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2005 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 @@ -22,9 +22,7 @@ import dwt.graphics.RGB; import dwt.DWT; import dwt.dwthelper.Integer; - -//PORTING_TYPE -class Image{} +import dwt.dwthelper.System; final class TIFFDirectory {
--- a/dwt/internal/image/WinBMPFileFormat.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/WinBMPFileFormat.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2006 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 @@ -20,6 +20,7 @@ import dwt.DWT; import tango.core.Exception; +import dwt.dwthelper.System; final class WinBMPFileFormat : FileFormat {
--- a/dwt/internal/image/WinICOFileFormat.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/internal/image/WinICOFileFormat.d Mon Jan 28 04:47:28 2008 +0100 @@ -1,4 +1,4 @@ -/******************************************************************************* +/******************************************************************************* * Copyright (c) 2000, 2006 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 @@ -18,6 +18,7 @@ import dwt.DWT; import tango.core.Exception; +import dwt.dwthelper.System; final class WinICOFileFormat : FileFormat {
--- a/dwt/layout/FillLayout.d Mon Jan 28 02:37:23 2008 +0100 +++ b/dwt/layout/FillLayout.d Mon Jan 28 04:47:28 2008 +0100 @@ -23,6 +23,7 @@ import tango.text.Util; import tango.util.Convert; +import dwt.dwthelper.utils; /** * <code>FillLayout</code> is the simplest layout class. It lays out
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Button.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1270 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Button; + +import dwt.widgets.Control; + +class Button : Control{ +} + +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.GC; +import dwt.graphics.Image; +import dwt.graphics.ImageData; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.ImageList; +import dwt.internal.win32.BITMAP; +import dwt.internal.win32.BUTTON_IMAGELIST; +import dwt.internal.win32.DRAWITEMSTRUCT; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SIZE; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class represent a selectable user interface object that + * issues notification when pressed and released. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>ARROW, CHECK, PUSH, RADIO, TOGGLE, FLAT</dd> + * <dd>UP, DOWN, LEFT, RIGHT, CENTER</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles ARROW, CHECK, PUSH, RADIO, and TOGGLE + * may be specified. + * </p><p> + * Note: Only one of the styles LEFT, RIGHT, and CENTER may be specified. + * </p><p> + * Note: Only one of the styles UP, DOWN, LEFT, and RIGHT may be specified + * when the ARROW style is specified. + * </p><p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ + +public class Button extends Control { + String text = "", message = ""; + Image image, image2, disabledImage; + ImageList imageList; + bool ignoreMouse; + static final int MARGIN = 4; + static final int CHECK_WIDTH, CHECK_HEIGHT; + static final int ICON_WIDTH = 128, ICON_HEIGHT = 128; + static final bool COMMAND_LINK = false; + static final int ButtonProc; + static final TCHAR ButtonClass = new TCHAR (0, "BUTTON", true); + static { + int hBitmap = OS.LoadBitmap (0, OS.OBM_CHECKBOXES); + if (hBitmap is 0) { + CHECK_WIDTH = OS.GetSystemMetrics (OS.IsWinCE ? OS.SM_CXSMICON : OS.SM_CXVSCROLL); + CHECK_HEIGHT = OS.GetSystemMetrics (OS.IsWinCE ? OS.SM_CYSMICON : OS.SM_CYVSCROLL); + } else { + BITMAP bitmap = new BITMAP (); + OS.GetObject (hBitmap, BITMAP.sizeof, bitmap); + OS.DeleteObject (hBitmap); + CHECK_WIDTH = bitmap.bmWidth / 4; + CHECK_HEIGHT = bitmap.bmHeight / 3; + } + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, ButtonClass, lpWndClass); + ButtonProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#ARROW + * @see DWT#CHECK + * @see DWT#PUSH + * @see DWT#RADIO + * @see DWT#TOGGLE + * @see DWT#FLAT + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#CENTER + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Button (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +void _setImage (Image image) { + if ((style & DWT.COMMAND) !is 0) return; + if (OS.COMCTL32_MAJOR >= 6) { + if (imageList !is null) imageList.dispose (); + imageList = null; + if (image !is null) { + imageList = new ImageList (style & DWT.RIGHT_TO_LEFT); + if (OS.IsWindowEnabled (handle)) { + imageList.add (image); + } else { + if (disabledImage !is null) disabledImage.dispose (); + disabledImage = new Image (display, image, DWT.IMAGE_DISABLE); + imageList.add (disabledImage); + } + BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST (); + buttonImageList.himl = imageList.getHandle (); + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits; + newBits &= ~(OS.BS_LEFT | OS.BS_CENTER | OS.BS_RIGHT); + if ((style & DWT.LEFT) !is 0) newBits |= OS.BS_LEFT; + if ((style & DWT.CENTER) !is 0) newBits |= OS.BS_CENTER; + if ((style & DWT.RIGHT) !is 0) newBits |= OS.BS_RIGHT; + if (text.length () is 0) { + if ((style & DWT.LEFT) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT; + if ((style & DWT.CENTER) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_CENTER; + if ((style & DWT.RIGHT) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_RIGHT; + } else { + buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT; + buttonImageList.margin_left = computeLeftMargin (); + buttonImageList.margin_right = MARGIN; + newBits &= ~(OS.BS_CENTER | OS.BS_RIGHT); + newBits |= OS.BS_LEFT; + } + if (newBits !is oldBits) { + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + OS.InvalidateRect (handle, null, true); + } + OS.SendMessage (handle, OS.BCM_SETIMAGELIST, 0, buttonImageList); + } else { + OS.SendMessage (handle, OS.BCM_SETIMAGELIST, 0, 0); + } + /* + * Bug in Windows. Under certain cirumstances yet to be + * isolated, BCM_SETIMAGELIST does not redraw the control + * when a new image is set. The fix is to force a redraw. + */ + OS.InvalidateRect (handle, null, true); + } else { + if (image2 !is null) image2.dispose (); + image2 = null; + int hImage = 0, imageBits = 0, fImageType = 0; + if (image !is null) { + switch (image.type) { + case DWT.BITMAP: { + Rectangle rect = image.getBounds (); + ImageData data = image.getImageData (); + switch (data.getTransparencyType ()) { + case DWT.TRANSPARENCY_PIXEL: + if (rect.width <= ICON_WIDTH && rect.height <= ICON_HEIGHT) { + image2 = new Image (display, data, data.getTransparencyMask ()); + hImage = image2.handle; + imageBits = OS.BS_ICON; + fImageType = OS.IMAGE_ICON; + break; + } + //FALL THROUGH + case DWT.TRANSPARENCY_ALPHA: + image2 = new Image (display, rect.width, rect.height); + GC gc = new GC (image2); + gc.setBackground (getBackground ()); + gc.fillRectangle (rect); + gc.drawImage (image, 0, 0); + gc.dispose (); + hImage = image2.handle; + imageBits = OS.BS_BITMAP; + fImageType = OS.IMAGE_BITMAP; + break; + case DWT.TRANSPARENCY_NONE: + hImage = image.handle; + imageBits = OS.BS_BITMAP; + fImageType = OS.IMAGE_BITMAP; + break; + } + break; + } + case DWT.ICON: { + hImage = image.handle; + imageBits = OS.BS_ICON; + fImageType = OS.IMAGE_ICON; + break; + } + } + /* + * Feature in Windows. The button control mirrors its image when the + * flag WS_EX_LAYOUTRTL is set. This behaviour is not desirable in DWT. + * The fix is to set a mirrored version of real image in the button. + */ + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + Rectangle rect = image.getBounds (); + int hDC = OS.GetDC (handle); + int dstHdc = OS.CreateCompatibleDC (hDC); + int hBitmap = OS.CreateCompatibleBitmap (hDC, rect.width, rect.height); + int oldBitmap = OS.SelectObject (dstHdc, hBitmap); + OS.SetLayout (dstHdc, OS.LAYOUT_RTL); + if (fImageType is OS.IMAGE_BITMAP) { + int srcHdc = OS.CreateCompatibleDC (hDC); + int oldSrcBitmap = OS.SelectObject (srcHdc, hImage); + OS.SetLayout (dstHdc, 0); + OS.BitBlt (dstHdc, 0, 0, rect.width, rect.height, srcHdc, 0, 0, OS.SRCCOPY); + OS.SelectObject (srcHdc, oldSrcBitmap); + OS.DeleteDC (srcHdc); + } else { + Control control = findBackgroundControl (); + if (control is null) control = this; + int newBrush = OS.CreateSolidBrush (control.getBackgroundPixel ()); + int oldBrush = OS.SelectObject (dstHdc, newBrush); + OS.PatBlt (dstHdc, 0, 0, rect.width, rect.height, OS.PATCOPY); + OS.DrawIconEx (dstHdc, 0, 0, hImage, 0, 0, 0, 0, OS.DI_NORMAL); + OS.SelectObject (dstHdc, oldBrush); + OS.DeleteObject (newBrush); + } + OS.SelectObject (dstHdc, oldBitmap); + OS.DeleteDC (dstHdc); + OS.ReleaseDC (handle, hDC); + if (image2 !is null) image2.dispose (); + image2 = Image.win32_new (display, DWT.BITMAP, hBitmap); + imageBits = OS.BS_BITMAP; + fImageType = OS.IMAGE_BITMAP; + hImage = hBitmap; + } + } + } + int newBits = OS.GetWindowLong (handle, OS.GWL_STYLE), oldBits = newBits; + newBits &= ~(OS.BS_BITMAP | OS.BS_ICON); + newBits |= imageBits; + if (newBits !is oldBits) OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + OS.SendMessage (handle, OS.BM_SETIMAGE, fImageType, hImage); + } +} + +void _setText (String text) { + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits; + if (OS.COMCTL32_MAJOR >= 6) { + newBits &= ~(OS.BS_LEFT | OS.BS_CENTER | OS.BS_RIGHT); + if ((style & DWT.LEFT) !is 0) newBits |= OS.BS_LEFT; + if ((style & DWT.CENTER) !is 0) newBits |= OS.BS_CENTER; + if ((style & DWT.RIGHT) !is 0) newBits |= OS.BS_RIGHT; + if (imageList !is null) { + BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST (); + buttonImageList.himl = imageList.getHandle (); + if (text.length () is 0) { + if ((style & DWT.LEFT) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT; + if ((style & DWT.CENTER) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_CENTER; + if ((style & DWT.RIGHT) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_RIGHT; + } else { + buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT; + buttonImageList.margin_left = computeLeftMargin (); + buttonImageList.margin_right = MARGIN; + newBits &= ~(OS.BS_CENTER | OS.BS_RIGHT); + newBits |= OS.BS_LEFT; + } + OS.SendMessage (handle, OS.BCM_SETIMAGELIST, 0, buttonImageList); + } + } else { + newBits &= ~(OS.BS_BITMAP | OS.BS_ICON); + } + if (newBits !is oldBits) { + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + OS.InvalidateRect (handle, null, true); + } + /* + * Bug in Windows. When a Button control is right-to-left and + * is disabled, the first pixel of the text is clipped. The + * fix is to add a space to both sides of the text. + */ + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + text = OS.IsWindowEnabled (handle) ? text : " " + text + " "; + } + } + TCHAR buffer = new TCHAR (getCodePage (), text, true); + OS.SetWindowText (handle, buffer); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the control is selected by the user. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (ButtonProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + style = checkBits (style, DWT.PUSH, DWT.ARROW, DWT.CHECK, DWT.RADIO, DWT.TOGGLE, COMMAND_LINK ? DWT.COMMAND : 0); + if ((style & (DWT.PUSH | DWT.TOGGLE)) !is 0) { + return checkBits (style, DWT.CENTER, DWT.LEFT, DWT.RIGHT, 0, 0, 0); + } + if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { + return checkBits (style, DWT.LEFT, DWT.RIGHT, DWT.CENTER, 0, 0, 0); + } + if ((style & DWT.ARROW) !is 0) { + style |= DWT.NO_FOCUS; + return checkBits (style, DWT.UP, DWT.DOWN, DWT.LEFT, DWT.RIGHT, 0, 0); + } + return style; +} + +void click () { + /* + * Feature in Windows. BM_CLICK sends a fake WM_LBUTTONDOWN and + * WM_LBUTTONUP in order to click the button. This causes the + * application to get unexpected mouse events. The fix is to + * ignore mouse events when they are caused by BM_CLICK. + */ + ignoreMouse = true; + OS.SendMessage (handle, OS.BM_CLICK, 0, 0); + ignoreMouse = false; +} + +int computeLeftMargin () { + if (OS.COMCTL32_MAJOR < 6) return MARGIN; + if ((style & (DWT.PUSH | DWT.TOGGLE)) is 0) return MARGIN; + int margin = 0; + if (image !is null && text.length () !is 0) { + Rectangle bounds = image.getBounds (); + margin += bounds.width + MARGIN * 2; + int oldFont = 0; + int hDC = OS.GetDC (handle); + int newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + TCHAR buffer = new TCHAR (getCodePage (), text, true); + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE; + OS.DrawText (hDC, buffer, -1, rect, flags); + margin += rect.right - rect.left; + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + OS.GetClientRect (handle, rect); + margin = Math.max (MARGIN, (rect.right - rect.left - margin) / 2); + } + return margin; +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0, border = getBorderWidth (); + if ((style & DWT.ARROW) !is 0) { + if ((style & (DWT.UP | DWT.DOWN)) !is 0) { + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + height += OS.GetSystemMetrics (OS.SM_CYVSCROLL); + } else { + width += OS.GetSystemMetrics (OS.SM_CXHSCROLL); + height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } + } else { + if ((style & DWT.COMMAND) !is 0) { + SIZE size = new SIZE (); + if (wHint !is DWT.DEFAULT) { + size.cx = wHint; + OS.SendMessage (handle, OS.BCM_GETIDEALSIZE, 0, size); + width = size.cx; + height = size.cy; + } else { + OS.SendMessage (handle, OS.BCM_GETIDEALSIZE, 0, size); + width = size.cy; + height = size.cy; + size.cy = 0; + while (size.cy !is height) { + size.cx = width++; + size.cy = 0; + OS.SendMessage (handle, OS.BCM_GETIDEALSIZE, 0, size); + } + } + } else { + int extra = 0; + bool hasImage = image !is null, hasText = true; + if (OS.COMCTL32_MAJOR < 6) { + if ((style & DWT.PUSH) is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + hasImage = (bits & (OS.BS_BITMAP | OS.BS_ICON)) !is 0; + if (hasImage) hasText = false; + } + } + if (hasImage) { + if (image !is null) { + Rectangle rect = image.getBounds (); + width = rect.width; + if (hasText && text.length () !is 0) { + width += MARGIN * 2; + } + height = rect.height; + extra = MARGIN * 2; + } + } + if (hasText) { + int oldFont = 0; + int hDC = OS.GetDC (handle); + int newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + TEXTMETRIC lptm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, lptm); + int length = text.length (); + if (length is 0) { + height = Math.max (height, lptm.tmHeight); + } else { + extra = Math.max (MARGIN * 2, lptm.tmAveCharWidth); + TCHAR buffer = new TCHAR (getCodePage (), text, true); + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE; + OS.DrawText (hDC, buffer, -1, rect, flags); + width += rect.right - rect.left; + height = Math.max (height, rect.bottom - rect.top); + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + } + if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { + width += CHECK_WIDTH + extra; + height = Math.max (height, CHECK_HEIGHT + 3); + } + if ((style & (DWT.PUSH | DWT.TOGGLE)) !is 0) { + width += 12; height += 10; + } + } + } + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + width += border * 2; + height += border * 2; + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + if ((style & DWT.PUSH) is 0) state |= THEME_BACKGROUND; + /* + * Bug in Windows. For some reason, the HBRUSH that + * is returned from WM_CTRLCOLOR is misaligned when + * the button uses it to draw. If the brush is a solid + * color, this does not matter. However, if the brush + * contains an image, the image is misaligned. The + * fix is to draw the background in WM_CTRLCOLOR. + * + * NOTE: For comctl32.dll 6.0 with themes disabled, + * drawing in WM_ERASEBKGND will draw on top of the + * text of the control. + */ + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if ((style & DWT.RADIO) !is 0) state |= DRAW_BACKGROUND; + } +} + +int defaultBackground () { + if ((style & (DWT.PUSH | DWT.TOGGLE)) !is 0) { + return OS.GetSysColor (OS.COLOR_BTNFACE); + } + return super.defaultBackground (); +} + +int defaultForeground () { + return OS.GetSysColor (OS.COLOR_BTNTEXT); +} + +void enableWidget (bool enabled) { + super.enableWidget (enabled); + /* + * Bug in Windows. When a button control is right-to-left and + * is disabled, the first pixel of the text is clipped. The + * fix is to add a space to both sides of the text. + */ + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bool hasImage = (bits & (OS.BS_BITMAP | OS.BS_ICON)) !is 0; + if (!hasImage) { + String string = enabled ? text : " " + text + " "; + TCHAR buffer = new TCHAR (getCodePage (), string, true); + OS.SetWindowText (handle, buffer); + } + } + } + /* + * Bug in Windows. When a button has the style BS_CHECKBOX + * or BS_RADIOBUTTON, is checked, and is displaying both an + * image and some text, when BCM_SETIMAGELIST is used to + * assign an image list for each of the button states, the + * button does not draw properly. When the user drags the + * mouse in and out of the button, it draws using a blank + * image. The fix is to set the complete image list only + * when the button is disabled. + */ + if (OS.COMCTL32_MAJOR >= 6) { + if (imageList !is null) { + BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST (); + OS.SendMessage (handle, OS.BCM_GETIMAGELIST, 0, buttonImageList); + if (imageList !is null) imageList.dispose (); + imageList = new ImageList (style & DWT.RIGHT_TO_LEFT); + if (OS.IsWindowEnabled (handle)) { + imageList.add (image); + } else { + if (disabledImage !is null) disabledImage.dispose (); + disabledImage = new Image (display, image, DWT.IMAGE_DISABLE); + imageList.add (disabledImage); + } + buttonImageList.himl = imageList.getHandle (); + OS.SendMessage (handle, OS.BCM_SETIMAGELIST, 0, buttonImageList); + /* + * Bug in Windows. Under certain cirumstances yet to be + * isolated, BCM_SETIMAGELIST does not redraw the control + * when an image is set. The fix is to force a redraw. + */ + OS.InvalidateRect (handle, null, true); + } + } +} + +/** + * Returns a value which describes the position of the + * text or image in the receiver. The value will be one of + * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> + * unless the receiver is an <code>ARROW</code> button, in + * which case, the alignment will indicate the direction of + * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, + * <code>UP</code> or <code>DOWN</code>). + * + * @return the alignment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getAlignment () { + checkWidget (); + if ((style & DWT.ARROW) !is 0) { + if ((style & DWT.UP) !is 0) return DWT.UP; + if ((style & DWT.DOWN) !is 0) return DWT.DOWN; + if ((style & DWT.LEFT) !is 0) return DWT.LEFT; + if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; + return DWT.UP; + } + if ((style & DWT.LEFT) !is 0) return DWT.LEFT; + if ((style & DWT.CENTER) !is 0) return DWT.CENTER; + if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; + return DWT.LEFT; +} + +bool getDefault () { + if ((style & DWT.PUSH) is 0) return false; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + return (bits & OS.BS_DEFPUSHBUTTON) !is 0; +} + +/** + * Returns the receiver's image if it has one, or null + * if it does not. + * + * @return the receiver's image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Image getImage () { + checkWidget (); + return image; +} + +/** + * Returns the widget message. When the widget is created + * with the style <code>DWT.COMMAND</code>, the message text + * is displayed to provide further information for the user. + * + * @return the widget message + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ String getMessage () { + checkWidget (); + return message; +} + +String getNameText () { + return getText (); +} + +/** + * Returns <code>true</code> if the receiver is selected, + * and false otherwise. + * <p> + * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, + * it is selected when it is checked. When it is of type <code>TOGGLE</code>, + * it is selected when it is pushed in. If the receiver is of any other type, + * this method returns false. + * + * @return the selection state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getSelection () { + checkWidget (); + if ((style & (DWT.CHECK | DWT.RADIO | DWT.TOGGLE)) is 0) return false; + int state = OS.SendMessage (handle, OS.BM_GETCHECK, 0, 0); + return (state & OS.BST_CHECKED) !is 0; +} + +/** + * Returns the receiver's text, which will be an empty + * string if it has never been set or if the receiver is + * an <code>ARROW</code> button. + * + * @return the receiver's text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText () { + checkWidget (); + if ((style & DWT.ARROW) !is 0) return ""; + return text; +} + +bool isTabItem () { + //TEMPORARY CODE + //if ((style & DWT.PUSH) !is 0) return true; + return super.isTabItem (); +} + +bool mnemonicHit (char ch) { + if (!setFocus ()) return false; + /* + * Feature in Windows. When a radio button gets focus, + * it selects the button in WM_SETFOCUS. Therefore, it + * is not necessary to click the button or send events + * because this has already happened in WM_SETFOCUS. + */ + if ((style & DWT.RADIO) is 0) click (); + return true; +} + +bool mnemonicMatch (char key) { + char mnemonic = findMnemonic (getText ()); + if (mnemonic is '\0') return false; + return Character.toUpperCase (key) is Character.toUpperCase (mnemonic); +} + +void releaseWidget () { + super.releaseWidget (); + if (imageList !is null) imageList.dispose (); + imageList = null; + if (disabledImage !is null) disabledImage.dispose (); + disabledImage = null; + if (image2 !is null) image2.dispose (); + image2 = null; + text = null; + image = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +void selectRadio () { + /* + * This code is intentionally commented. When two groups + * of radio buttons with the same parent are separated by + * another control, the correct behavior should be that + * the two groups act independently. This is consistent + * with radio tool and menu items. The commented code + * implements this behavior. + */ +// int index = 0; +// Control [] children = parent._getChildren (); +// while (index < children.length && children [index] !is this) index++; +// int i = index - 1; +// while (i >= 0 && children [i].setRadioSelection (false)) --i; +// int j = index + 1; +// while (j < children.length && children [j].setRadioSelection (false)) j++; +// setSelection (true); + Control [] children = parent._getChildren (); + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (this !is child) child.setRadioSelection (false); + } + setSelection (true); +} + +/** + * Controls how text, images and arrows will be displayed + * in the receiver. The argument should be one of + * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> + * unless the receiver is an <code>ARROW</code> button, in + * which case, the argument indicates the direction of + * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, + * <code>UP</code> or <code>DOWN</code>). + * + * @param alignment the new alignment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setAlignment (int alignment) { + checkWidget (); + if ((style & DWT.ARROW) !is 0) { + if ((style & (DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT)) is 0) return; + style &= ~(DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT); + style |= alignment & (DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT); + OS.InvalidateRect (handle, null, true); + return; + } + if ((alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER)) is 0) return; + style &= ~(DWT.LEFT | DWT.RIGHT | DWT.CENTER); + style |= alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER); + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits; + newBits &= ~(OS.BS_LEFT | OS.BS_CENTER | OS.BS_RIGHT); + if ((style & DWT.LEFT) !is 0) newBits |= OS.BS_LEFT; + if ((style & DWT.CENTER) !is 0) newBits |= OS.BS_CENTER; + if ((style & DWT.RIGHT) !is 0) newBits |= OS.BS_RIGHT; + if (OS.COMCTL32_MAJOR >= 6) { + if (imageList !is null) { + BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST (); + buttonImageList.himl = imageList.getHandle (); + if (text.length () is 0) { + if ((style & DWT.LEFT) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT; + if ((style & DWT.CENTER) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_CENTER; + if ((style & DWT.RIGHT) !is 0) buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_RIGHT; + } else { + buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT; + buttonImageList.margin_left = computeLeftMargin (); + buttonImageList.margin_right = MARGIN; + newBits &= ~(OS.BS_CENTER | OS.BS_RIGHT); + newBits |= OS.BS_LEFT; + } + OS.SendMessage (handle, OS.BCM_SETIMAGELIST, 0, buttonImageList); + } + } + if (newBits !is oldBits) { + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + OS.InvalidateRect (handle, null, true); + } +} + +void setDefault (bool value) { + if ((style & DWT.PUSH) is 0) return; + int hwndShell = menuShell ().handle; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if (value) { + bits |= OS.BS_DEFPUSHBUTTON; + OS.SendMessage (hwndShell, OS.DM_SETDEFID, handle, 0); + } else { + bits &= ~OS.BS_DEFPUSHBUTTON; + OS.SendMessage (hwndShell, OS.DM_SETDEFID, 0, 0); + } + OS.SendMessage (handle, OS.BM_SETSTYLE, bits, 1); +} + +bool setFixedFocus () { + /* + * Feature in Windows. When a radio button gets focus, + * it selects the button in WM_SETFOCUS. The fix is to + * not assign focus to an unselected radio button. + */ + if ((style & DWT.RADIO) !is 0 && !getSelection ()) return false; + return super.setFixedFocus (); +} + +/** + * Sets the receiver's image to the argument, which may be + * <code>null</code> indicating that no image should be displayed. + * <p> + * Note that a Button can display an image and text simultaneously + * on Windows (starting with XP), GTK+ and OSX. On other platforms, + * a Button that has an image and text set into it will display the + * image or text that was set most recently. + * </p> + * @param image the image to display on the receiver (may be <code>null</code>) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (Image image) { + checkWidget (); + if (image !is null && image.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + if ((style & DWT.ARROW) !is 0) return; + this.image = image; + /* This code is intentionally commented */ +// if (OS.COMCTL32_MAJOR < 6) { +// if (image is null || text.length () !is 0) { +// _setText (text); +// return; +// } +// } + _setImage (image); +} + +/** + * Sets the widget message. When the widget is created + * with the style <code>DWT.COMMAND</code>, the message text + * is displayed to provide further information for the user. + * + * @param message the new message + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ void setMessage (String message) { + checkWidget (); + if (message is null) error (DWT.ERROR_NULL_ARGUMENT); + this.message = message; + if (OS.COMCTL32_VERSION >= OS.VERSION (6, 1)) { + if ((style & DWT.COMMAND) !is 0) { + int length = message.length (); + char [] chars = new char [length + 1]; + message.getChars(0, length, chars, 0); + OS.SendMessage (handle, OS.BCM_SETNOTE, 0, chars); + } + } +} + +bool setRadioFocus () { + if ((style & DWT.RADIO) is 0 || !getSelection ()) return false; + return setFocus (); +} + +bool setRadioSelection (bool value) { + if ((style & DWT.RADIO) is 0) return false; + if (getSelection () !is value) { + setSelection (value); + postEvent (DWT.Selection); + } + return true; +} + +bool setSavedFocus () { + /* + * Feature in Windows. When a radio button gets focus, + * it selects the button in WM_SETFOCUS. If the previous + * saved focus widget was a radio button, allowing the shell + * to automatically restore the focus to the previous radio + * button will unexpectedly check that button. The fix is to + * not assign focus to an unselected radio button. + */ + if ((style & DWT.RADIO) !is 0 && !getSelection ()) return false; + return super.setSavedFocus (); +} + +/** + * Sets the selection state of the receiver, if it is of type <code>CHECK</code>, + * <code>RADIO</code>, or <code>TOGGLE</code>. + * + * <p> + * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, + * it is selected when it is checked. When it is of type <code>TOGGLE</code>, + * it is selected when it is pushed in. + * + * @param selected the new selection state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (bool selected) { + checkWidget (); + if ((style & (DWT.CHECK | DWT.RADIO | DWT.TOGGLE)) is 0) return; + int flags = selected ? OS.BST_CHECKED : OS.BST_UNCHECKED; + /* + * Feature in Windows. When BM_SETCHECK is used + * to set the checked state of a radio or check + * button, it sets the WM_TABSTOP style. This + * is undocumented and unwanted. The fix is + * to save and restore the window style bits. + */ + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + OS.SendMessage (handle, OS.BM_SETCHECK, flags, 0); + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); +} + +/** + * Sets the receiver's text. + * <p> + * This method sets the button label. The label may include + * the mnemonic character but must not contain line delimiters. + * </p> + * <p> + * Mnemonics are indicated by an '&' that causes the next + * character to be the mnemonic. When the user presses a + * key sequence that matches the mnemonic, a selection + * event occurs. On most platforms, the mnemonic appears + * underlined but may be emphasized in a platform specific + * manner. The mnemonic indicator character '&' can be + * escaped by doubling it in the string, causing a single + * '&' to be displayed. + * </p><p> + * Note that a Button can display an image and text simultaneously + * on Windows (starting with XP), GTK+ and OSX. On other platforms, + * a Button that has an image and text set into it will display the + * image or text that was set most recently. + * </p> + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if ((style & DWT.ARROW) !is 0) return; + text = string; + /* This code is intentionally commented */ +// if (OS.COMCTL32_MAJOR < 6) { +// if (text.length () is 0 && image !is null) { +// _setImage (image); +// return; +// } +// } + _setText (string); +} + +int widgetStyle () { + int bits = super.widgetStyle (); + if ((style & DWT.FLAT) !is 0) bits |= OS.BS_FLAT; + if ((style & DWT.ARROW) !is 0) return bits | OS.BS_OWNERDRAW; + if ((style & DWT.LEFT) !is 0) bits |= OS.BS_LEFT; + if ((style & DWT.CENTER) !is 0) bits |= OS.BS_CENTER; + if ((style & DWT.RIGHT) !is 0) bits |= OS.BS_RIGHT; + if ((style & DWT.PUSH) !is 0) return bits | OS.BS_PUSHBUTTON | OS.WS_TABSTOP; + if ((style & DWT.CHECK) !is 0) return bits | OS.BS_CHECKBOX | OS.WS_TABSTOP; + if ((style & DWT.RADIO) !is 0) return bits | OS.BS_RADIOBUTTON; + if ((style & DWT.TOGGLE) !is 0) return bits | OS.BS_PUSHLIKE | OS.BS_CHECKBOX | OS.WS_TABSTOP; + if ((style & DWT.COMMAND) !is 0) return bits | OS.BS_COMMANDLINK | OS.WS_TABSTOP; + return bits | OS.BS_PUSHBUTTON | OS.WS_TABSTOP; +} + +TCHAR windowClass () { + return ButtonClass; +} + +int windowProc () { + return ButtonProc; +} + + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. For some reason, the HBRUSH that + * is returned from WM_CTRLCOLOR is misaligned when + * the button uses it to draw. If the brush is a solid + * color, this does not matter. However, if the brush + * contains an image, the image is misaligned. The + * fix is to draw the background in WM_ERASEBKGND. + */ + if (OS.COMCTL32_MAJOR < 6) { + if ((style & (DWT.RADIO | DWT.CHECK)) !is 0) { + if (findImageControl () !is null) { + drawBackground (wParam); + return LRESULT.ONE; + } + } + } + return result; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + LRESULT result = super.WM_GETDLGCODE (wParam, lParam); + if (result !is null) return result; + if ((style & DWT.ARROW) !is 0) { + return new LRESULT (OS.DLGC_STATIC); + } + return result; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_KILLFOCUS (wParam, lParam); + if ((style & DWT.PUSH) !is 0 && getDefault ()) { + menuShell ().setDefaultButton (null, false); + } + return result; +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + if (ignoreMouse) return null; + return super.WM_LBUTTONDOWN (wParam, lParam); +} + +LRESULT WM_LBUTTONUP (int wParam, int lParam) { + if (ignoreMouse) return null; + return super.WM_LBUTTONUP (wParam, lParam); +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + /* + * Feature in Windows. When Windows sets focus to + * a radio button, it sets the WM_TABSTOP style. + * This is undocumented and unwanted. The fix is + * to save and restore the window style bits. + */ + int bits = 0; + if ((style & DWT.RADIO) !is 0) { + bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + } + LRESULT result = super.WM_SETFOCUS (wParam, lParam); + if ((style & DWT.RADIO) !is 0) { + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + } + if ((style & DWT.PUSH) !is 0) { + menuShell ().setDefaultButton (this, false); + } + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + if (result !is null) return result; + if (OS.COMCTL32_MAJOR >= 6) { + if ((style & (DWT.PUSH | DWT.TOGGLE)) !is 0) { + if (imageList !is null && text.length () !is 0) { + BUTTON_IMAGELIST buttonImageList = new BUTTON_IMAGELIST (); + OS.SendMessage (handle, OS.BCM_GETIMAGELIST, 0, buttonImageList); + buttonImageList.uAlign = OS.BUTTON_IMAGELIST_ALIGN_LEFT; + buttonImageList.margin_left = computeLeftMargin (); + buttonImageList.margin_right = MARGIN; + OS.SendMessage (handle, OS.BCM_SETIMAGELIST, 0, buttonImageList); + } + } + } + return result; +} + +LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) { + LRESULT result = super.WM_SYSCOLORCHANGE (wParam, lParam); + if (result !is null) return result; + if (image2 !is null) _setImage (image); + return result; +} + +LRESULT WM_UPDATEUISTATE (int wParam, int lParam) { + LRESULT result = super.WM_UPDATEUISTATE (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. When WM_UPDATEUISTATE is sent to + * a button, it sends WM_CTLCOLORBTN to get the foreground + * and background. If drawing happens in WM_CTLCOLORBTN, + * it will overwrite the contents of the control. The + * fix is draw the button without drawing the background + * and avoid the button window proc. + * + * NOTE: This only happens for radio, check and toggle + * buttons. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + if ((style & (DWT.RADIO | DWT.CHECK | DWT.TOGGLE)) !is 0) { + bool redraw = findImageControl () !is null; + if (!redraw) { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + redraw = findThemeControl () !is null; + } + } + if (!redraw) redraw = findBackgroundControl () !is null; + } + if (redraw) { + OS.InvalidateRect (handle, null, false); + int code = OS.DefWindowProc (handle, OS.WM_UPDATEUISTATE, wParam, lParam); + return new LRESULT (code); + } + } + } + return result; +} + +LRESULT wmCommandChild (int wParam, int lParam) { + int code = wParam >> 16; + switch (code) { + case OS.BN_CLICKED: + case OS.BN_DOUBLECLICKED: + if ((style & (DWT.CHECK | DWT.TOGGLE)) !is 0) { + setSelection (!getSelection ()); + } else { + if ((style & DWT.RADIO) !is 0) { + if ((parent.getStyle () & DWT.NO_RADIO_GROUP) !is 0) { + setSelection (!getSelection ()); + } else { + selectRadio (); + } + } + } + postEvent (DWT.Selection); + } + return super.wmCommandChild (wParam, lParam); +} + +LRESULT wmColorChild (int wParam, int lParam) { + /* + * Bug in Windows. For some reason, the HBRUSH that + * is returned from WM_CTRLCOLOR is misaligned when + * the button uses it to draw. If the brush is a solid + * color, this does not matter. However, if the brush + * contains an image, the image is misaligned. The + * fix is to draw the background in WM_ERASEBKGND. + */ + LRESULT result = super.wmColorChild (wParam, lParam); + if (OS.COMCTL32_MAJOR < 6) { + if ((style & (DWT.RADIO | DWT.CHECK)) !is 0) { + if (findImageControl () !is null) { + OS.SetBkMode (wParam, OS.TRANSPARENT); + return new LRESULT (OS.GetStockObject (OS.NULL_BRUSH)); + } + } + } + return result; +} + +LRESULT wmDrawChild (int wParam, int lParam) { + if ((style & DWT.ARROW) is 0) return super.wmDrawChild (wParam, lParam); + DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT (); + OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof); + RECT rect = new RECT (); + OS.SetRect (rect, struct.left, struct.top, struct.right, struct.bottom); + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + int iStateId = OS.ABS_LEFTNORMAL; + switch (style & (DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT)) { + case DWT.UP: iStateId = OS.ABS_UPNORMAL; break; + case DWT.DOWN: iStateId = OS.ABS_DOWNNORMAL; break; + case DWT.LEFT: iStateId = OS.ABS_LEFTNORMAL; break; + case DWT.RIGHT: iStateId = OS.ABS_RIGHTNORMAL; break; + } + /* + * NOTE: The normal, hot, pressed and disabled state is + * computed relying on the fact that the increment between + * the direction states is invariant (always separated by 4). + */ + if (!getEnabled ()) iStateId += OS.ABS_UPDISABLED - OS.ABS_UPNORMAL; + if ((struct.itemState & OS.ODS_SELECTED) !is 0) iStateId += OS.ABS_UPPRESSED - OS.ABS_UPNORMAL; + OS.DrawThemeBackground (display.hScrollBarTheme (), struct.hDC, OS.SBP_ARROWBTN, iStateId, rect, null); + } else { + int uState = OS.DFCS_SCROLLLEFT; + switch (style & (DWT.UP | DWT.DOWN | DWT.LEFT | DWT.RIGHT)) { + case DWT.UP: uState = OS.DFCS_SCROLLUP; break; + case DWT.DOWN: uState = OS.DFCS_SCROLLDOWN; break; + case DWT.LEFT: uState = OS.DFCS_SCROLLLEFT; break; + case DWT.RIGHT: uState = OS.DFCS_SCROLLRIGHT; break; + } + if (!getEnabled ()) uState |= OS.DFCS_INACTIVE; + if ((style & DWT.FLAT) is DWT.FLAT) uState |= OS.DFCS_FLAT; + if ((struct.itemState & OS.ODS_SELECTED) !is 0) uState |= OS.DFCS_PUSHED; + OS.DrawFrameControl (struct.hDC, rect, OS.DFC_SCROLL, uState); + } + return null; +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Canvas.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,399 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Canvas; + +import dwt.widgets.Composite; + +class Canvas : Composite { +} + +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Font; +import dwt.graphics.GC; +import dwt.graphics.Rectangle; +import dwt.internal.win32.COMPOSITIONFORM; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; + +/** + * Instances of this class provide a surface for drawing + * arbitrary graphics. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * This class may be subclassed by custom control implementors + * who are building controls that are <em>not</em> constructed + * from aggregates of other controls. That is, they are either + * painted using DWT graphics calls or are handled by native + * methods. + * </p> + * + * @see Composite + */ + +public class Canvas extends Composite { + Caret caret; + +/** + * Prevents uninitialized instances from being created outside the package. + */ +Canvas () { +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Canvas (Composite parent, int style) { + super (parent, style); +} + +void clearArea (int x, int y, int width, int height) { + checkWidget (); + if (OS.IsWindowVisible (handle)) { + RECT rect = new RECT (); + OS.SetRect (rect, x, y, x + width, y + height); + int hDC = OS.GetDCEx (handle, 0, OS.DCX_CACHE | OS.DCX_CLIPCHILDREN | OS.DCX_CLIPSIBLINGS); + drawBackground (hDC, rect); + OS.ReleaseDC (handle, hDC); + } +} + +/** + * Returns the caret. + * <p> + * The caret for the control is automatically hidden + * and shown when the control is painted or resized, + * when focus is gained or lost and when an the control + * is scrolled. To avoid drawing on top of the caret, + * the programmer must hide and show the caret when + * drawing in the window any other time. + * </p> + * + * @return the caret + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Caret getCaret () { + checkWidget (); + return caret; +} + +void releaseChildren (bool destroy) { + if (caret !is null) { + caret.release (false); + caret = null; + } + super.releaseChildren (destroy); +} + +/** + * Fills the interior of the rectangle specified by the arguments, + * with the receiver's background. + * + * @param gc the gc where the rectangle is to be filled + * @param x the x coordinate of the rectangle to be filled + * @param y the y coordinate of the rectangle to be filled + * @param width the width of the rectangle to be filled + * @param height the height of the rectangle to be filled + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the gc has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void drawBackground (GC gc, int x, int y, int width, int height) { + checkWidget (); + if (gc is null) error (DWT.ERROR_NULL_ARGUMENT); + if (gc.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + RECT rect = new RECT (); + OS.SetRect (rect, x, y, x + width, y + height); + int hDC = gc.handle; + int pixel = background is -1 ? gc.getBackground ().handle : -1; + drawBackground (hDC, rect, pixel); +} + +/** + * Scrolls a rectangular area of the receiver by first copying + * the source area to the destination and then causing the area + * of the source which is not covered by the destination to + * be repainted. Children that intersect the rectangle are + * optionally moved during the operation. In addition, outstanding + * paint events are flushed before the source area is copied to + * ensure that the contents of the canvas are drawn correctly. + * + * @param destX the x coordinate of the destination + * @param destY the y coordinate of the destination + * @param x the x coordinate of the source + * @param y the y coordinate of the source + * @param width the width of the area + * @param height the height of the area + * @param all <code>true</code>if children should be scrolled, and <code>false</code> otherwise + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void scroll (int destX, int destY, int x, int y, int width, int height, bool all) { + checkWidget (); + forceResize (); + bool isFocus = caret !is null && caret.isFocusCaret (); + if (isFocus) caret.killFocus (); + RECT sourceRect = new RECT (); + OS.SetRect (sourceRect, x, y, x + width, y + height); + RECT clientRect = new RECT (); + OS.GetClientRect (handle, clientRect); + if (OS.IntersectRect (clientRect, sourceRect, clientRect)) { + if (OS.IsWinCE) { + OS.UpdateWindow (handle); + } else { + int flags = OS.RDW_UPDATENOW | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } + } + int deltaX = destX - x, deltaY = destY - y; + if (findImageControl () !is null) { + if (OS.IsWinCE) { + OS.InvalidateRect (handle, sourceRect, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; + if (all) flags |= OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, sourceRect, 0, flags); + } + OS.OffsetRect (sourceRect, deltaX, deltaY); + if (OS.IsWinCE) { + OS.InvalidateRect (handle, sourceRect, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; + if (all) flags |= OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, sourceRect, 0, flags); + } + } else { + int flags = OS.SW_INVALIDATE | OS.SW_ERASE; + /* + * Feature in Windows. If any child in the widget tree partially + * intersects the scrolling rectangle, Windows moves the child + * and copies the bits that intersect the scrolling rectangle but + * does not redraw the child. + * + * Feature in Windows. When any child in the widget tree does not + * intersect the scrolling rectangle but the parent does intersect, + * Windows does not move the child. This is the documented (but + * strange) Windows behavior. + * + * The fix is to not use SW_SCROLLCHILDREN and move the children + * explicitly after scrolling. + */ +// if (all) flags |= OS.SW_SCROLLCHILDREN; + OS.ScrollWindowEx (handle, deltaX, deltaY, sourceRect, null, 0, null, flags); + } + if (all) { + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + Control child = children [i]; + Rectangle rect = child.getBounds (); + if (Math.min (x + width, rect.x + rect.width) >= Math.max (x, rect.x) && + Math.min (y + height, rect.y + rect.height) >= Math.max (y, rect.y)) { + child.setLocation (rect.x + deltaX, rect.y + deltaY); + } + } + } + if (isFocus) caret.setFocus (); +} + +/** + * Sets the receiver's caret. + * <p> + * The caret for the control is automatically hidden + * and shown when the control is painted or resized, + * when focus is gained or lost and when an the control + * is scrolled. To avoid drawing on top of the caret, + * the programmer must hide and show the caret when + * drawing in the window any other time. + * </p> + * @param caret the new caret for the receiver, may be null + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the caret has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setCaret (Caret caret) { + checkWidget (); + Caret newCaret = caret; + Caret oldCaret = this.caret; + this.caret = newCaret; + if (hasFocus ()) { + if (oldCaret !is null) oldCaret.killFocus (); + if (newCaret !is null) { + if (newCaret.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + newCaret.setFocus (); + } + } +} + +public void setFont (Font font) { + checkWidget (); + if (caret !is null) caret.setFont (font); + super.setFont (font); +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + if (msg is Display.SWT_RESTORECARET) { + if ((state & CANVAS) !is 0) { + if (caret !is null) { + caret.killFocus (); + caret.setFocus (); + return 1; + } + } + } + return super.windowProc (hwnd, msg, wParam, lParam); +} + +LRESULT WM_IME_COMPOSITION (int wParam, int lParam) { + LRESULT result = super.WM_IME_COMPOSITION (wParam, lParam); + /* + * Bug in Windows. On Korean Windows XP, the IME window + * for the Korean Input System (MS-IME 2002) always opens + * in the top left corner of the screen, despite the fact + * that ImmSetCompositionWindow() was called to position + * the IME when focus is gained. The fix is to position + * the IME on every WM_IME_COMPOSITION message. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION is OS.VERSION (5, 1)) { + if (OS.IsDBLocale) { + short langID = OS.GetSystemDefaultUILanguage (); + short primaryLang = OS.PRIMARYLANGID (langID); + if (primaryLang is OS.LANG_KOREAN) { + if (caret !is null && caret.isFocusCaret ()) { + POINT ptCurrentPos = new POINT (); + if (OS.GetCaretPos (ptCurrentPos)) { + COMPOSITIONFORM lpCompForm = new COMPOSITIONFORM (); + lpCompForm.dwStyle = OS.CFS_POINT; + lpCompForm.x = ptCurrentPos.x; + lpCompForm.y = ptCurrentPos.y; + int hIMC = OS.ImmGetContext (handle); + OS.ImmSetCompositionWindow (hIMC, lpCompForm); + OS.ImmReleaseContext (handle, hIMC); + } + } + } + } + } + return result; +} + +LRESULT WM_INPUTLANGCHANGE (int wParam, int lParam) { + LRESULT result = super.WM_INPUTLANGCHANGE (wParam, lParam); + if (caret !is null && caret.isFocusCaret ()) { + caret.setIMEFont (); + caret.resizeIME (); + } + return result; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_KILLFOCUS (wParam, lParam); + if (caret !is null) caret.killFocus (); + return result; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_SETFOCUS (wParam, lParam); + if (caret !is null) caret.setFocus (); + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + if (caret !is null && caret.isFocusCaret ()) caret.resizeIME (); + return result; +} + +LRESULT WM_WINDOWPOSCHANGED (int wParam, int lParam) { + LRESULT result = super.WM_WINDOWPOSCHANGED (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. When a window with style WS_EX_LAYOUTRTL + * that contains a caret is resized, Windows does not move the + * caret in relation to the mirrored origin in the top right. + * The fix is to hide the caret in WM_WINDOWPOSCHANGING and + * show the caret in WM_WINDOWPOSCHANGED. + */ + bool isFocus = (style & DWT.RIGHT_TO_LEFT) !is 0 && caret !is null && caret.isFocusCaret (); + if (isFocus) caret.setFocus (); + return result; +} + +LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) { + LRESULT result = super.WM_WINDOWPOSCHANGING (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. When a window with style WS_EX_LAYOUTRTL + * that contains a caret is resized, Windows does not move the + * caret in relation to the mirrored origin in the top right. + * The fix is to hide the caret in WM_WINDOWPOSCHANGING and + * show the caret in WM_WINDOWPOSCHANGED. + */ + bool isFocus = (style & DWT.RIGHT_TO_LEFT) !is 0 && caret !is null && caret.isFocusCaret (); + if (isFocus) caret.killFocus (); + return result; +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Caret.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,572 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Caret; + +import dwt.widgets.Widget; + +class Caret : Widget { + this( Widget, int ); +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Font; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.COMPOSITIONFORM; +import dwt.internal.win32.LOGFONT; +import dwt.internal.win32.LOGFONTA; +import dwt.internal.win32.LOGFONTW; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; + +/** + * Instances of this class provide an i-beam that is typically used + * as the insertion point for text. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ + +public class Caret extends Widget { + Canvas parent; + int x, y, width, height; + bool moved, resized; + bool isVisible; + Image image; + Font font; + LOGFONT oldFont; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Caret (Canvas parent, int style) { + super (parent, style); + this.parent = parent; + createWidget (); +} + +void createWidget () { + isVisible = true; + if (parent.getCaret () is null) { + parent.setCaret (this); + } +} + +int defaultFont () { + int hwnd = parent.handle; + int hwndIME = OS.ImmGetDefaultIMEWnd (hwnd); + int hFont = 0; + if (hwndIME !is 0) { + hFont = OS.SendMessage (hwndIME, OS.WM_GETFONT, 0, 0); + } + if (hFont is 0) { + hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); + } + if (hFont is 0) return parent.defaultFont (); + return hFont; +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent (or its display if its parent is null). + * + * @return the receiver's bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Rectangle getBounds () { + checkWidget(); + if (image !is null) { + Rectangle rect = image.getBounds (); + return new Rectangle (x, y, rect.width, rect.height); + } + return new Rectangle (x, y, width, height); +} + +/** + * Returns the font that the receiver will use to paint textual information. + * + * @return the receiver's font + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Font getFont () { + checkWidget(); + if (font is null) { + int hFont = defaultFont (); + return Font.win32_new (display, hFont); + } + return font; +} + +/** + * Returns the image that the receiver will use to paint the caret. + * + * @return the receiver's image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Image getImage () { + checkWidget(); + return image; +} + +/** + * Returns a point describing the receiver's location relative + * to its parent (or its display if its parent is null). + * + * @return the receiver's location + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getLocation () { + checkWidget(); + return new Point (x, y); +} + +/** + * Returns the receiver's parent, which must be a <code>Canvas</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Canvas getParent () { + checkWidget(); + return parent; +} + +/** + * Returns a point describing the receiver's size. + * + * @return the receiver's size + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getSize () { + checkWidget(); + if (image !is null) { + Rectangle rect = image.getBounds (); + return new Point (rect.width, rect.height); + } + return new Point (width, height); +} + +/** + * Returns <code>true</code> if the receiver is visible, and + * <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getVisible () { + checkWidget(); + return isVisible; +} + +bool hasFocus () { + return parent.handle is OS.GetFocus (); +} + +bool isFocusCaret () { + return parent.caret is this && hasFocus (); +} + +/** + * Returns <code>true</code> if the receiver is visible and all + * of the receiver's ancestors are visible and <code>false</code> + * otherwise. + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getVisible + */ +public bool isVisible () { + checkWidget(); + return isVisible && parent.isVisible () && hasFocus (); +} + +void killFocus () { + OS.DestroyCaret (); + restoreIMEFont (); +} + +void move () { + moved = false; + if (!OS.SetCaretPos (x, y)) return; + resizeIME (); +} + +void resizeIME () { + if (!OS.IsDBLocale) return; + POINT ptCurrentPos = new POINT (); + if (!OS.GetCaretPos (ptCurrentPos)) return; + int hwnd = parent.handle; + RECT rect = new RECT (); + OS.GetClientRect (hwnd, rect); + COMPOSITIONFORM lpCompForm = new COMPOSITIONFORM (); + lpCompForm.dwStyle = OS.CFS_RECT; + lpCompForm.x = ptCurrentPos.x; + lpCompForm.y = ptCurrentPos.y; + lpCompForm.left = rect.left; + lpCompForm.right = rect.right; + lpCompForm.top = rect.top; + lpCompForm.bottom = rect.bottom; + int hIMC = OS.ImmGetContext (hwnd); + OS.ImmSetCompositionWindow (hIMC, lpCompForm); + OS.ImmReleaseContext (hwnd, hIMC); +} + +void releaseParent () { + super.releaseParent (); + if (this is parent.getCaret ()) parent.setCaret (null); +} + +void releaseWidget () { + super.releaseWidget (); + parent = null; + image = null; + font = null; + oldFont = null; +} + +void resize () { + resized = false; + int hwnd = parent.handle; + OS.DestroyCaret (); + int hBitmap = image !is null ? image.handle : 0; + OS.CreateCaret (hwnd, hBitmap, width, height); + OS.SetCaretPos (x, y); + OS.ShowCaret (hwnd); + move (); +} + +void restoreIMEFont () { + if (!OS.IsDBLocale) return; + if (oldFont is null) return; + int hwnd = parent.handle; + int hIMC = OS.ImmGetContext (hwnd); + OS.ImmSetCompositionFont (hIMC, oldFont); + OS.ImmReleaseContext (hwnd, hIMC); + oldFont = null; +} + +/** + * Sets the receiver's size and location to the rectangular + * area specified by the arguments. The <code>x</code> and + * <code>y</code> arguments are relative to the receiver's + * parent (or its display if its parent is null). + * + * @param x the new x coordinate for the receiver + * @param y the new y coordinate for the receiver + * @param width the new width for the receiver + * @param height the new height for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setBounds (int x, int y, int width, int height) { + checkWidget(); + bool samePosition = this.x is x && this.y is y; + bool sameExtent = this.width is width && this.height is height; + if (samePosition && sameExtent) return; + this.x = x; this.y = y; + this.width = width; this.height = height; + if (sameExtent) { + moved = true; + if (isVisible && hasFocus ()) move (); + } else { + resized = true; + if (isVisible && hasFocus ()) resize (); + } +} + +/** + * Sets the receiver's size and location to the rectangular + * area specified by the argument. The <code>x</code> and + * <code>y</code> fields of the rectangle are relative to + * the receiver's parent (or its display if its parent is null). + * + * @param rect the new bounds for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setBounds (Rectangle rect) { + if (rect is null) error (DWT.ERROR_NULL_ARGUMENT); + setBounds (rect.x, rect.y, rect.width, rect.height); +} + +void setFocus () { + int hwnd = parent.handle; + int hBitmap = 0; + if (image !is null) hBitmap = image.handle; + OS.CreateCaret (hwnd, hBitmap, width, height); + move (); + setIMEFont (); + if (isVisible) OS.ShowCaret (hwnd); +} + +/** + * Sets the font that the receiver will use to paint textual information + * to the font specified by the argument, or to the default font for that + * kind of control if the argument is null. + * + * @param font the new font (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setFont (Font font) { + checkWidget(); + if (font !is null && font.isDisposed ()) { + error (DWT.ERROR_INVALID_ARGUMENT); + } + this.font = font; + if (hasFocus ()) setIMEFont (); +} + +/** + * Sets the image that the receiver will use to paint the caret + * to the image specified by the argument, or to the default + * which is a filled rectangle if the argument is null + * + * @param image the new image (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (Image image) { + checkWidget(); + if (image !is null && image.isDisposed ()) { + error (DWT.ERROR_INVALID_ARGUMENT); + } + this.image = image; + if (isVisible && hasFocus ()) resize (); +} + +void setIMEFont () { + if (!OS.IsDBLocale) return; + int hFont = 0; + if (font !is null) hFont = font.handle; + if (hFont is 0) hFont = defaultFont (); + int hwnd = parent.handle; + int hIMC = OS.ImmGetContext (hwnd); + /* Save the current IME font */ + if (oldFont is null) { + oldFont = OS.IsUnicode ? (LOGFONT) new LOGFONTW () : new LOGFONTA (); + if (!OS.ImmGetCompositionFont (hIMC, oldFont)) oldFont = null; + } + /* Set new IME font */ + LOGFONT logFont = OS.IsUnicode ? (LOGFONT) new LOGFONTW () : new LOGFONTA (); + if (OS.GetObject (hFont, LOGFONT.sizeof, logFont) !is 0) { + OS.ImmSetCompositionFont (hIMC, logFont); + } + OS.ImmReleaseContext (hwnd, hIMC); +} + +/** + * Sets the receiver's location to the point specified by + * the arguments which are relative to the receiver's + * parent (or its display if its parent is null). + * + * @param x the new x coordinate for the receiver + * @param y the new y coordinate for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLocation (int x, int y) { + checkWidget(); + if (this.x is x && this.y is y) return; + this.x = x; this.y = y; + moved = true; + if (isVisible && hasFocus ()) move (); +} + +/** + * Sets the receiver's location to the point specified by + * the argument which is relative to the receiver's + * parent (or its display if its parent is null). + * + * @param location the new location for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLocation (Point location) { + checkWidget(); + if (location is null) error (DWT.ERROR_NULL_ARGUMENT); + setLocation (location.x, location.y); +} + +/** + * Sets the receiver's size to the point specified by the arguments. + * + * @param width the new width for the receiver + * @param height the new height for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSize (int width, int height) { + checkWidget(); + if (this.width is width && this.height is height) return; + this.width = width; this.height = height; + resized = true; + if (isVisible && hasFocus ()) resize (); +} + +/** + * Sets the receiver's size to the point specified by the argument. + * + * @param size the new extent for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSize (Point size) { + checkWidget(); + if (size is null) error (DWT.ERROR_NULL_ARGUMENT); + setSize (size.x, size.y); +} + +/** + * Marks the receiver as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param visible the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setVisible (bool visible) { + checkWidget(); + if (visible is isVisible) return; + isVisible = visible; + int hwnd = parent.handle; + if (OS.GetFocus () !is hwnd) return; + if (!isVisible) { + OS.HideCaret (hwnd); + } else { + if (resized) { + resize (); + } else { + if (moved) move (); + } + OS.ShowCaret (hwnd); + } +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ColorDialog.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,257 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.ColorDialog; + +import dwt.widgets.Dialog; +import dwt.widgets.Shell; + +class ColorDialog : Dialog { + public this (Shell parent, int style) { + super (parent, style); + } +} + +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.PaletteData; +import dwt.graphics.RGB; +import dwt.internal.Callback; +import dwt.internal.win32.CHOOSECOLOR; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class allow the user to select a color + * from a predefined set of available colors. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ + +public class ColorDialog extends Dialog { + Display display; + int width, height; + RGB rgb; + +/** + * Constructs a new instance of this class given only its parent. + * + * @param parent a composite control which will be the parent of the new instance + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ColorDialog (Shell parent) { + this (parent, DWT.PRIMARY_MODAL); +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ColorDialog (Shell parent, int style) { + super (parent, style); + checkSubclass (); +} + +int CCHookProc (int hdlg, int uiMsg, int lParam, int lpData) { + switch (uiMsg) { + case OS.WM_INITDIALOG: { + RECT rect = new RECT (); + OS.GetWindowRect (hdlg, rect); + width = rect.right - rect.left; + height = rect.bottom - rect.top; + if (title !is null && title.length () !is 0) { + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, title, true); + OS.SetWindowText (hdlg, buffer); + } + break; + } + case OS.WM_DESTROY: { + RECT rect = new RECT (); + OS.GetWindowRect (hdlg, rect); + int newWidth = rect.right - rect.left; + int newHeight = rect.bottom - rect.top; + if (newWidth < width || newHeight < height) { + //display.fullOpen = false; + } else { + if (newWidth > width || newHeight > height) { + //display.fullOpen = true; + } + } + break; + } + } + return 0; +} + +/** + * Returns the currently selected color in the receiver. + * + * @return the RGB value for the selected color, may be null + * + * @see PaletteData#getRGBs + */ +public RGB getRGB () { + return rgb; +} + +/** + * Makes the receiver visible and brings it to the front + * of the display. + * + * @return the selected color, or null if the dialog was + * cancelled, no color was selected, or an error + * occurred + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public RGB open () { + + /* Get the owner HWND for the dialog */ + int hwndOwner = parent.handle; + + /* Create the CCHookProc */ + Callback callback = new Callback (this, "CCHookProc", 4); //$NON-NLS-1$ + int lpfnHook = callback.getAddress (); + if (lpfnHook is 0) DWT.error(DWT.ERROR_NO_MORE_CALLBACKS); + + /* Allocate the Custom Colors */ + display = parent.display; + if (display.lpCustColors is 0) { + int hHeap = OS.GetProcessHeap (); + display.lpCustColors = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, 16 * 4); + } + + /* Open the dialog */ + CHOOSECOLOR lpcc = new CHOOSECOLOR (); + lpcc.lStructSize = CHOOSECOLOR.sizeof; + lpcc.Flags = OS.CC_ANYCOLOR | OS.CC_ENABLEHOOK; + //if (display.fullOpen) lpcc.Flags |= OS.CC_FULLOPEN; + lpcc.lpfnHook = lpfnHook; + lpcc.hwndOwner = hwndOwner; + lpcc.lpCustColors = display.lpCustColors; + if (rgb !is null) { + lpcc.Flags |= OS.CC_RGBINIT; + int red = rgb.red & 0xFF; + int green = (rgb.green << 8) & 0xFF00; + int blue = (rgb.blue << 16) & 0xFF0000; + lpcc.rgbResult = red | green | blue; + } + + /* Make the parent shell be temporary modal */ + Shell oldModal = null; + if ((style & (DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + oldModal = display.getModalDialogShell (); + display.setModalDialogShell (parent); + } + + /* Open the dialog */ + bool success = OS.ChooseColor (lpcc); + + /* Clear the temporary dialog modal parent */ + if ((style & (DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + display.setModalDialogShell (oldModal); + } + + if (success) { + int red = lpcc.rgbResult & 0xFF; + int green = (lpcc.rgbResult >> 8) & 0xFF; + int blue = (lpcc.rgbResult >> 16) & 0xFF; + rgb = new RGB (red, green, blue); + } + + /* Free the CCHookProc */ + callback.dispose (); + + /* Free the Custom Colors */ + /* + * This code is intentionally commented. Currently, + * there is exactly one set of custom colors per display. + * The memory associated with these colors is released + * when the display is disposed. + */ +// if (lpCustColors !is 0) OS.HeapFree (hHeap, 0, lpCustColors); + + /* + * This code is intentionally commented. On some + * platforms, the owner window is repainted right + * away when a dialog window exits. This behavior + * is currently unspecified. + */ +// if (hwndOwner !is 0) OS.UpdateWindow (hwndOwner); + + if (!success) return null; + return rgb; +} + +/** + * Sets the receiver's selected color to be the argument. + * + * @param rgb the new RGB value for the selected color, may be + * null to let the platform select a default when + * open() is called + * @see PaletteData#getRGBs + */ +public void setRGB (RGB rgb) { + this.rgb = rgb; +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Combo.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,2447 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Combo; + +import dwt.widgets.Composite; + +class Combo : Composite { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ModifyListener; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.events.VerifyListener; +import dwt.graphics.Font; +import dwt.graphics.Point; +import dwt.internal.Callback; +import dwt.internal.win32.COMBOBOXINFO; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MONITORINFO; +import dwt.internal.win32.MSG; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class are controls that allow the user + * to choose an item from a list of items, or optionally + * enter a new value by typing it into an editable text + * field. Often, <code>Combo</code>s are used in the same place + * where a single selection <code>List</code> widget could + * be used but space is limited. A <code>Combo</code> takes + * less space than a <code>List</code> widget and shows + * similar information. + * <p> + * Note: Since <code>Combo</code>s can contain both a list + * and an editable text field, it is possible to confuse methods + * which access one versus the other (compare for example, + * <code>clearSelection()</code> and <code>deselectAll()</code>). + * The API documentation is careful to indicate either "the + * receiver's list" or the "the receiver's text field" to + * distinguish between the two cases. + * </p><p> + * Note that although this class is a subclass of <code>Composite</code>, + * it does not make sense to add children to it, or set a layout on it. + * </p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>DROP_DOWN, READ_ONLY, SIMPLE</dd> + * <dt><b>Events:</b></dt> + * <dd>DefaultSelection, Modify, Selection, Verify</dd> + * </dl> + * <p> + * Note: Only one of the styles DROP_DOWN and SIMPLE may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @see List + */ + +public class Combo extends Composite { + bool noSelection, ignoreDefaultSelection, ignoreCharacter, ignoreModify; + int cbtHook, scrollWidth, visibleCount = 5; + + /** + * the operating system limit for the number of characters + * that the text field in an instance of this class can hold + */ + public static final int LIMIT; + + /* + * These values can be different on different platforms. + * Therefore they are not initialized in the declaration + * to stop the compiler from inlining. + */ + static { + LIMIT = OS.IsWinNT ? 0x7FFFFFFF : 0x7FFF; + } + + /* + * These are the undocumented control id's for the children of + * a combo box. Since there are no constants for these values, + * they may change with different versions of Windows (but have + * been the same since Windows 3.0). + */ + static final int CBID_LIST = 1000; + static final int CBID_EDIT = 1001; + static /*final*/ int EditProc, ListProc; + + static final int ComboProc; + static final TCHAR ComboClass = new TCHAR (0, "COMBOBOX", true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, ComboClass, lpWndClass); + ComboProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#DROP_DOWN + * @see DWT#READ_ONLY + * @see DWT#SIMPLE + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Combo (Composite parent, int style) { + super (parent, checkStyle (style)); + /* This code is intentionally commented */ + //if ((style & DWT.H_SCROLL) !is 0) this.style |= DWT.H_SCROLL; + this.style |= DWT.H_SCROLL; +} + +/** + * Adds the argument to the end of the receiver's list. + * + * @param string the new item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #add(String,int) + */ +public void add (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + TCHAR buffer = new TCHAR (getCodePage (), string, true); + int result = OS.SendMessage (handle, OS.CB_ADDSTRING, 0, buffer); + if (result is OS.CB_ERR) error (DWT.ERROR_ITEM_NOT_ADDED); + if (result is OS.CB_ERRSPACE) error (DWT.ERROR_ITEM_NOT_ADDED); + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (buffer, true); +} + +/** + * Adds the argument to the receiver's list at the given + * zero-relative index. + * <p> + * Note: To add an item at the end of the list, use the + * result of calling <code>getItemCount()</code> as the + * index or use <code>add(String)</code>. + * </p> + * + * @param string the new item + * @param index the index for the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #add(String) + */ +public void add (String string, int index) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (!(0 <= index && index <= count)) { + error (DWT.ERROR_INVALID_RANGE); + } + TCHAR buffer = new TCHAR (getCodePage (), string, true); + int result = OS.SendMessage (handle, OS.CB_INSERTSTRING, index, buffer); + if (result is OS.CB_ERRSPACE || result is OS.CB_ERR) { + error (DWT.ERROR_ITEM_NOT_ADDED); + } + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (buffer, true); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver's text is modified, by sending + * it one of the messages defined in the <code>ModifyListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ModifyListener + * @see #removeModifyListener + */ +public void addModifyListener (ModifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Modify, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the user changes the receiver's selection, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the user changes the combo's list selection. + * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. + * </p> + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver's text is verified, by sending + * it one of the messages defined in the <code>VerifyListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see VerifyListener + * @see #removeVerifyListener + * + * @since 3.1 + */ +public void addVerifyListener (VerifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Verify, typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + if (hwnd is handle) { + return OS.CallWindowProc (ComboProc, hwnd, msg, wParam, lParam); + } + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwnd is hwndText) { + return OS.CallWindowProc (EditProc, hwnd, msg, wParam, lParam); + } + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwnd is hwndList) { + return OS.CallWindowProc (ListProc, hwnd, msg, wParam, lParam); + } + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +int CBTProc (int nCode, int wParam, int lParam) { + if (nCode is OS.HCBT_CREATEWND) { + TCHAR buffer = new TCHAR (0, 128); + OS.GetClassName (wParam, buffer, buffer.length ()); + String className = buffer.toString (0, buffer.strlen ()); + if (className.equals ("Edit") || className.equals ("EDIT")) { //$NON-NLS-1$ //$NON-NLS-2$ + int bits = OS.GetWindowLong (wParam, OS.GWL_STYLE); + OS.SetWindowLong (wParam, OS.GWL_STYLE, bits & ~OS.ES_NOHIDESEL); + } + } + return OS.CallNextHookEx (cbtHook, nCode, wParam, lParam); +} + +bool checkHandle (int hwnd) { + return hwnd is handle || hwnd is OS.GetDlgItem (handle, CBID_EDIT) || hwnd is OS.GetDlgItem (handle, CBID_LIST); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +static int checkStyle (int style) { + /* + * Feature in Windows. It is not possible to create + * a combo box that has a border using Windows style + * bits. All combo boxes draw their own border and + * do not use the standard Windows border styles. + * Therefore, no matter what style bits are specified, + * clear the BORDER bits so that the DWT style will + * match the Windows widget. + * + * The Windows behavior is currently implemented on + * all platforms. + */ + style &= ~DWT.BORDER; + + /* + * Even though it is legal to create this widget + * with scroll bars, they serve no useful purpose + * because they do not automatically scroll the + * widget's client area. The fix is to clear + * the DWT style. + */ + style &= ~(DWT.H_SCROLL | DWT.V_SCROLL); + style = checkBits (style, DWT.DROP_DOWN, DWT.SIMPLE, 0, 0, 0, 0); + if ((style & DWT.SIMPLE) !is 0) return style & ~DWT.READ_ONLY; + return style; +} + +/** + * Sets the selection in the receiver's text field to an empty + * selection starting just before the first character. If the + * text field is editable, this has the effect of placing the + * i-beam at the start of the text. + * <p> + * Note: To clear the selected items in the receiver's list, + * use <code>deselectAll()</code>. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #deselectAll + */ +public void clearSelection () { + checkWidget (); + OS.SendMessage (handle, OS.CB_SETEDITSEL, 0, -1); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0; + if (wHint is DWT.DEFAULT) { + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_NOPREFIX; + if ((style & DWT.READ_ONLY) is 0) flags |= OS.DT_EDITCONTROL; + int length = OS.GetWindowTextLength (handle); + int cp = getCodePage (); + TCHAR buffer = new TCHAR (cp, length + 1); + OS.GetWindowText (handle, buffer, length + 1); + OS.DrawText (hDC, buffer, length, rect, flags); + width = Math.max (width, rect.right - rect.left); + if ((style & DWT.H_SCROLL) !is 0) { + width = Math.max (width, scrollWidth); + } else { + for (int i=0; i<count; i++) { + length = OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, i, 0); + if (length !is OS.CB_ERR) { + if (length + 1 > buffer.length ()) buffer = new TCHAR (cp, length + 1); + int result = OS.SendMessage (handle, OS.CB_GETLBTEXT, i, buffer); + if (result !is OS.CB_ERR) { + OS.DrawText (hDC, buffer, length, rect, flags); + width = Math.max (width, rect.right - rect.left); + } + } + } + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + } + if (hHint is DWT.DEFAULT) { + if ((style & DWT.SIMPLE) !is 0) { + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + int itemHeight = OS.SendMessage (handle, OS.CB_GETITEMHEIGHT, 0, 0); + height = count * itemHeight; + } + } + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + if ((style & DWT.READ_ONLY) !is 0) { + width += 8; + } else { + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) { + int margins = OS.SendMessage (hwndText, OS.EM_GETMARGINS, 0, 0); + int marginWidth = (margins & 0xFFFF) + ((margins >> 16) & 0xFFFF); + width += marginWidth + 3; + } + } + COMBOBOXINFO pcbi = new COMBOBOXINFO (); + pcbi.cbSize = COMBOBOXINFO.sizeof; + if (((style & DWT.SIMPLE) is 0) && !OS.IsWinCE && OS.GetComboBoxInfo (handle, pcbi)) { + width += pcbi.itemLeft + (pcbi.buttonRight - pcbi.buttonLeft); + height = (pcbi.buttonBottom - pcbi.buttonTop) + pcbi.buttonTop * 2; + } else { + int border = OS.GetSystemMetrics (OS.SM_CXEDGE); + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL) + border * 2; + int textHeight = OS.SendMessage (handle, OS.CB_GETITEMHEIGHT, -1, 0); + if ((style & DWT.DROP_DOWN) !is 0) { + height = textHeight + 6; + } else { + height += textHeight + 10; + } + } + if ((style & DWT.SIMPLE) !is 0 && (style & DWT.H_SCROLL) !is 0) { + height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } + return new Point (width, height); +} + +/** + * Copies the selected text. + * <p> + * The current selection is copied to the clipboard. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1 + */ +public void copy () { + checkWidget (); + OS.SendMessage (handle, OS.WM_COPY, 0, 0); +} + +void createHandle () { + /* + * Feature in Windows. When the selection changes in a combo box, + * Windows draws the selection, even when the combo box does not + * have focus. Strictly speaking, this is the correct Windows + * behavior because the combo box sets ES_NOHIDESEL on the text + * control that it creates. Despite this, it looks strange because + * Windows also clears the selection and selects all the text when + * the combo box gets focus. The fix is use the CBT hook to clear + * the ES_NOHIDESEL style bit when the text control is created. + */ + if (OS.IsWinCE || (style & (DWT.READ_ONLY | DWT.SIMPLE)) !is 0) { + super.createHandle (); + } else { + int threadId = OS.GetCurrentThreadId (); + Callback cbtCallback = new Callback (this, "CBTProc", 3); //$NON-NLS-1$ + int cbtProc = cbtCallback.getAddress (); + if (cbtProc is 0) error (DWT.ERROR_NO_MORE_CALLBACKS); + cbtHook = OS.SetWindowsHookEx (OS.WH_CBT, cbtProc, 0, threadId); + super.createHandle (); + if (cbtHook !is 0) OS.UnhookWindowsHookEx (cbtHook); + cbtHook = 0; + cbtCallback.dispose (); + } + state &= ~(CANVAS | THEME_BACKGROUND); + + /* Get the text and list window procs */ + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0 && EditProc is 0) { + EditProc = OS.GetWindowLong (hwndText, OS.GWL_WNDPROC); + } + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0 && ListProc is 0) { + ListProc = OS.GetWindowLong (hwndList, OS.GWL_WNDPROC); + } + + /* + * Bug in Windows. If the combo box has the CBS_SIMPLE style, + * the list portion of the combo box is not drawn correctly the + * first time, causing pixel corruption. The fix is to ensure + * that the combo box has been resized more than once. + */ + if ((style & DWT.SIMPLE) !is 0) { + int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; + SetWindowPos (handle, 0, 0, 0, 0x3FFF, 0x3FFF, flags); + SetWindowPos (handle, 0, 0, 0, 0, 0, flags); + } +} + +/** + * Cuts the selected text. + * <p> + * The current selection is first copied to the + * clipboard and then deleted from the widget. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1 + */ +public void cut () { + checkWidget (); + if ((style & DWT.READ_ONLY) !is 0) return; + OS.SendMessage (handle, OS.WM_CUT, 0, 0); +} + +int defaultBackground () { + return OS.GetSysColor (OS.COLOR_WINDOW); +} + +void deregister () { + super.deregister (); + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) display.removeControl (hwndText); + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0) display.removeControl (hwndList); +} + +/** + * Deselects the item at the given zero-relative index in the receiver's + * list. If the item at the index was already deselected, it remains + * deselected. Indices that are out of range are ignored. + * + * @param index the index of the item to deselect + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselect (int index) { + checkWidget (); + int selection = OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); + if (index !is selection) return; + OS.SendMessage (handle, OS.CB_SETCURSEL, -1, 0); + sendEvent (DWT.Modify); + // widget could be disposed at this point +} + +/** + * Deselects all selected items in the receiver's list. + * <p> + * Note: To clear the selection in the receiver's text field, + * use <code>clearSelection()</code>. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #clearSelection + */ +public void deselectAll () { + checkWidget (); + OS.SendMessage (handle, OS.CB_SETCURSEL, -1, 0); + sendEvent (DWT.Modify); + // widget could be disposed at this point +} + +bool dragDetect (int hwnd, int x, int y, bool filter, bool [] detect, bool [] consume) { + if (filter && (style & DWT.READ_ONLY) is 0) { + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) { + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.CB_GETEDITSEL, start, end); + if (start [0] !is end [0]) { + int lParam = (x & 0xFFFF) | ((y << 16) & 0xFFFF0000); + int position = OS.SendMessage (hwndText, OS.EM_CHARFROMPOS, 0, lParam) & 0xFFFF; + if (start [0] <= position && position < end [0]) { + if (super.dragDetect (hwnd, x, y, filter, detect, consume)) { + if (consume !is null) consume [0] = true; + return true; + } + } + } + return false; + } + } + return super.dragDetect (hwnd, x, y, filter, detect, consume); +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver's list. Throws an exception if the index is out + * of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getItem (int index) { + checkWidget (); + int length = OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, index, 0); + if (length !is OS.CB_ERR) { + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + int result = OS.SendMessage (handle, OS.CB_GETLBTEXT, index, buffer); + if (result !is OS.CB_ERR) return buffer.toString (0, length); + } + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (0 <= index && index < count) error (DWT.ERROR_CANNOT_GET_ITEM); + error (DWT.ERROR_INVALID_RANGE); + return ""; +} + +/** + * Returns the number of items contained in the receiver's list. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (count is OS.CB_ERR) error (DWT.ERROR_CANNOT_GET_COUNT); + return count; +} + +/** + * Returns the height of the area which would be used to + * display <em>one</em> of the items in the receiver's list. + * + * @return the height of one item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemHeight () { + checkWidget (); + int result = OS.SendMessage (handle, OS.CB_GETITEMHEIGHT, 0, 0); + if (result is OS.CB_ERR) error (DWT.ERROR_CANNOT_GET_ITEM_HEIGHT); + return result; +} + +/** + * Returns a (possibly empty) array of <code>String</code>s which are + * the items in the receiver's list. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver's list + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String [] getItems () { + checkWidget (); + int count = getItemCount (); + String [] result = new String [count]; + for (int i=0; i<count; i++) result [i] = getItem (i); + return result; +} + +/** + * Returns <code>true</code> if the receiver's list is visible, + * and <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the receiver's list's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ bool getListVisible () { + checkWidget (); + if ((style & DWT.DROP_DOWN) !is 0) { + return OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) !is 0; + } + return true; +} + +String getNameText () { + return getText (); +} + +/** + * Returns the orientation of the receiver. + * + * @return the orientation style + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1.2 + */ +public int getOrientation () { + checkWidget(); + return style & (DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT); +} + +/** + * Returns a <code>Point</code> whose x coordinate is the + * character position representing the start of the selection + * in the receiver's text field, and whose y coordinate is the + * character position representing the end of the selection. + * An "empty" selection is indicated by the x and y coordinates + * having the same value. + * <p> + * Indexing is zero based. The range of a selection is from + * 0..N where N is the number of characters in the widget. + * </p> + * + * @return a point representing the selection start and end + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getSelection () { + checkWidget (); + if ((style & DWT.DROP_DOWN) !is 0 && (style & DWT.READ_ONLY) !is 0) { + return new Point (0, OS.GetWindowTextLength (handle)); + } + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.CB_GETEDITSEL, start, end); + if (!OS.IsUnicode && OS.IsDBLocale) { + start [0] = mbcsToWcsPos (start [0]); + end [0] = mbcsToWcsPos (end [0]); + } + return new Point (start [0], end [0]); +} + +/** + * Returns the zero-relative index of the item which is currently + * selected in the receiver's list, or -1 if no item is selected. + * + * @return the index of the selected item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelectionIndex () { + checkWidget (); + if (noSelection) return -1; + return OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); +} + +/** + * Returns a string containing a copy of the contents of the + * receiver's text field, or an empty string if there are no + * contents. + * + * @return the receiver's text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText () { + checkWidget (); + int length = OS.GetWindowTextLength (handle); + if (length is 0) return ""; + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (handle, buffer, length + 1); + return buffer.toString (0, length); +} + +/** + * Returns the height of the receivers's text field. + * + * @return the text height + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getTextHeight () { + checkWidget (); + COMBOBOXINFO pcbi = new COMBOBOXINFO (); + pcbi.cbSize = COMBOBOXINFO.sizeof; + if (((style & DWT.SIMPLE) is 0) && !OS.IsWinCE && OS.GetComboBoxInfo (handle, pcbi)) { + return (pcbi.buttonBottom - pcbi.buttonTop) + pcbi.buttonTop * 2; + } + int result = OS.SendMessage (handle, OS.CB_GETITEMHEIGHT, -1, 0); + if (result is OS.CB_ERR) error (DWT.ERROR_CANNOT_GET_ITEM_HEIGHT); + return (style & DWT.DROP_DOWN) !is 0 ? result + 6 : result + 10; +} + +/** + * Returns the maximum number of characters that the receiver's + * text field is capable of holding. If this has not been changed + * by <code>setTextLimit()</code>, it will be the constant + * <code>Combo.LIMIT</code>. + * + * @return the text limit + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #LIMIT + */ +public int getTextLimit () { + checkWidget (); + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText is 0) return LIMIT; + return OS.SendMessage (hwndText, OS.EM_GETLIMITTEXT, 0, 0) & 0x7FFFFFFF; +} + +/** + * Gets the number of items that are visible in the drop + * down portion of the receiver's list. + * <p> + * Note: This operation is a hint and is not supported on + * platforms that do not have this concept. + * </p> + * + * @return the number of items that are visible + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public int getVisibleItemCount () { + checkWidget (); + return visibleCount; +} + +bool hasFocus () { + int hwndFocus = OS.GetFocus (); + if (hwndFocus is handle) return true; + if (hwndFocus is 0) return false; + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndFocus is hwndText) return true; + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndFocus is hwndList) return true; + return false; +} + +/** + * Searches the receiver's list starting at the first item + * (index 0) until an item is found that is equal to the + * argument, and returns the index of that item. If no item + * is found, returns -1. + * + * @param string the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (String string) { + return indexOf (string, 0); +} + +/** + * Searches the receiver's list starting at the given, + * zero-relative index until an item is found that is equal + * to the argument, and returns the index of that item. If + * no item is found or the starting index is out of range, + * returns -1. + * + * @param string the search item + * @param start the zero-relative index at which to begin the search + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (String string, int start) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + + /* + * Bug in Windows. For some reason, CB_FINDSTRINGEXACT + * will not find empty strings even though it is legal + * to insert an empty string into a combo. The fix is + * to search the combo, an item at a time. + */ + if (string.length () is 0) { + int count = getItemCount (); + for (int i=start; i<count; i++) { + if (string.equals (getItem (i))) return i; + } + return -1; + } + + /* Use CB_FINDSTRINGEXACT to search for the item */ + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (!(0 <= start && start < count)) return -1; + int index = start - 1, last = 0; + TCHAR buffer = new TCHAR (getCodePage (), string, true); + do { + index = OS.SendMessage (handle, OS.CB_FINDSTRINGEXACT, last = index, buffer); + if (index is OS.CB_ERR || index <= last) return -1; + } while (!string.equals (getItem (index))); + return index; +} + +int mbcsToWcsPos (int mbcsPos) { + if (mbcsPos <= 0) return 0; + if (OS.IsUnicode) return mbcsPos; + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText is 0) return mbcsPos; + int mbcsSize = OS.GetWindowTextLengthA (hwndText); + if (mbcsSize is 0) return 0; + if (mbcsPos >= mbcsSize) return mbcsSize; + byte [] buffer = new byte [mbcsSize + 1]; + OS.GetWindowTextA (hwndText, buffer, mbcsSize + 1); + return OS.MultiByteToWideChar (getCodePage (), OS.MB_PRECOMPOSED, buffer, mbcsPos, null, 0); +} + +/** + * Pastes text from clipboard. + * <p> + * The selected text is deleted from the widget + * and new text inserted from the clipboard. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1 + */ +public void paste () { + checkWidget (); + if ((style & DWT.READ_ONLY) !is 0) return; + OS.SendMessage (handle, OS.WM_PASTE, 0, 0); +} + +void register () { + super.register (); + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) display.addControl (hwndText, this); + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0) display.addControl (hwndList, this); +} + +/** + * Removes the item from the receiver's list at the given + * zero-relative index. + * + * @param index the index for the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (int index) { + checkWidget (); + remove (index, true); +} + +void remove (int index, bool notify) { + TCHAR buffer = null; + if ((style & DWT.H_SCROLL) !is 0) { + int length = OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, index, 0); + if (length is OS.CB_ERR) { + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (0 <= index && index < count) error (DWT.ERROR_ITEM_NOT_REMOVED); + error (DWT.ERROR_INVALID_RANGE); + } + buffer = new TCHAR (getCodePage (), length + 1); + int result = OS.SendMessage (handle, OS.CB_GETLBTEXT, index, buffer); + if (result is OS.CB_ERR) { + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (0 <= index && index < count) error (DWT.ERROR_ITEM_NOT_REMOVED); + error (DWT.ERROR_INVALID_RANGE); + } + } + int length = OS.GetWindowTextLength (handle); + int code = OS.SendMessage (handle, OS.CB_DELETESTRING, index, 0); + if (code is OS.CB_ERR) { + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (0 <= index && index < count) error (DWT.ERROR_ITEM_NOT_REMOVED); + error (DWT.ERROR_INVALID_RANGE); + } + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (buffer, true); + if (notify && length !is OS.GetWindowTextLength (handle)) { + sendEvent (DWT.Modify); + if (isDisposed ()) return; + } + /* + * Bug in Windows. When the combo box is read only + * with exactly one item that is currently selected + * and that item is removed, the combo box does not + * redraw to clear the text area. The fix is to + * force a redraw. + */ + if ((style & DWT.READ_ONLY) !is 0) { + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (count is 0) OS.InvalidateRect (handle, null, true); + } +} + +/** + * Removes the items from the receiver's list which are + * between the given zero-relative start and end + * indices (inclusive). + * + * @param start the start of the range + * @param end the end of the range + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (int start, int end) { + checkWidget (); + if (start > end) return; + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (!(0 <= start && start <= end && end < count)) { + error (DWT.ERROR_INVALID_RANGE); + } + int textLength = OS.GetWindowTextLength (handle); + RECT rect = null; + int hDC = 0, oldFont = 0, newFont = 0, newWidth = 0; + if ((style & DWT.H_SCROLL) !is 0) { + rect = new RECT (); + hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + } + int cp = getCodePage (); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + for (int i=start; i<=end; i++) { + TCHAR buffer = null; + if ((style & DWT.H_SCROLL) !is 0) { + int length = OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, start, 0); + if (length is OS.CB_ERR) break; + buffer = new TCHAR (cp, length + 1); + int result = OS.SendMessage (handle, OS.CB_GETLBTEXT, start, buffer); + if (result is OS.CB_ERR) break; + } + int result = OS.SendMessage (handle, OS.CB_DELETESTRING, start, 0); + if (result is OS.CB_ERR) error (DWT.ERROR_ITEM_NOT_REMOVED); + if ((style & DWT.H_SCROLL) !is 0) { + OS.DrawText (hDC, buffer, -1, rect, flags); + newWidth = Math.max (newWidth, rect.right - rect.left); + } + } + if ((style & DWT.H_SCROLL) !is 0) { + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + setScrollWidth (newWidth, false); + } + if (textLength !is OS.GetWindowTextLength (handle)) { + sendEvent (DWT.Modify); + if (isDisposed ()) return; + } + /* + * Bug in Windows. When the combo box is read only + * with exactly one item that is currently selected + * and that item is removed, the combo box does not + * redraw to clear the text area. The fix is to + * force a redraw. + */ + if ((style & DWT.READ_ONLY) !is 0) { + count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (count is 0) OS.InvalidateRect (handle, null, true); + } +} + +/** + * Searches the receiver's list starting at the first item + * until an item is found that is equal to the argument, + * and removes that item from the list. + * + * @param string the item to remove + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + int index = indexOf (string, 0); + if (index is -1) error (DWT.ERROR_INVALID_ARGUMENT); + remove (index); +} + +/** + * Removes all of the items from the receiver's list and clear the + * contents of receiver's text field. + * <p> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void removeAll () { + checkWidget (); + OS.SendMessage (handle, OS.CB_RESETCONTENT, 0, 0); + sendEvent (DWT.Modify); + if (isDisposed ()) return; + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (0); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the receiver's text is modified. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ModifyListener + * @see #addModifyListener + */ +public void removeModifyListener (ModifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Modify, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the user changes the receiver's selection. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is verified. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see VerifyListener + * @see #addVerifyListener + * + * @since 3.1 + */ +public void removeVerifyListener (VerifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Verify, listener); +} + +bool sendKeyEvent (int type, int msg, int wParam, int lParam, Event event) { + if (!super.sendKeyEvent (type, msg, wParam, lParam, event)) { + return false; + } + if ((style & DWT.READ_ONLY) !is 0) return true; + if (type !is DWT.KeyDown) return true; + if (msg !is OS.WM_CHAR && msg !is OS.WM_KEYDOWN && msg !is OS.WM_IME_CHAR) { + return true; + } + if (event.character is 0) return true; + if (!hooks (DWT.Verify) && !filters (DWT.Verify)) return true; + char key = event.character; + int stateMask = event.stateMask; + + /* + * Disable all magic keys that could modify the text + * and don't send events when Alt, Shift or Ctrl is + * pressed. + */ + switch (msg) { + case OS.WM_CHAR: + if (key !is 0x08 && key !is 0x7F && key !is '\r' && key !is '\t' && key !is '\n') break; + // FALL THROUGH + case OS.WM_KEYDOWN: + if ((stateMask & (DWT.ALT | DWT.SHIFT | DWT.CONTROL)) !is 0) return false; + break; + } + + /* + * If the left button is down, the text widget refuses the character. + */ + if (OS.GetKeyState (OS.VK_LBUTTON) < 0) { + return true; + } + + /* Verify the character */ + String oldText = ""; + int [] start = new int [1], end = new int [1]; + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText is 0) return true; + OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); + switch (key) { + case 0x08: /* Bs */ + if (start [0] is end [0]) { + if (start [0] is 0) return true; + start [0] = start [0] - 1; + if (!OS.IsUnicode && OS.IsDBLocale) { + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); + OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); + if (start [0] !is newStart [0]) start [0] = start [0] - 1; + } + start [0] = Math.max (start [0], 0); + } + break; + case 0x7F: /* Del */ + if (start [0] is end [0]) { + int length = OS.GetWindowTextLength (hwndText); + if (start [0] is length) return true; + end [0] = end [0] + 1; + if (!OS.IsUnicode && OS.IsDBLocale) { + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); + OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); + if (end [0] !is newEnd [0]) end [0] = end [0] + 1; + } + end [0] = Math.min (end [0], length); + } + break; + case '\r': /* Return */ + return true; + default: /* Tab and other characters */ + if (key !is '\t' && key < 0x20) return true; + oldText = new String (new char [] {key}); + break; + } + String newText = verifyText (oldText, start [0], end [0], event); + if (newText is null) return false; + if (newText is oldText) return true; + TCHAR buffer = new TCHAR (getCodePage (), newText, true); + OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); + OS.SendMessage (hwndText, OS.EM_REPLACESEL, 0, buffer); + return false; +} + +/** + * Selects the item at the given zero-relative index in the receiver's + * list. If the item at the index was already selected, it remains + * selected. Indices that are out of range are ignored. + * + * @param index the index of the item to select + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void select (int index) { + checkWidget (); + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (0 <= index && index < count) { + int selection = OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); + int code = OS.SendMessage (handle, OS.CB_SETCURSEL, index, 0); + if (code !is OS.CB_ERR && code !is selection) { + sendEvent (DWT.Modify); + // widget could be disposed at this point + } + } +} + +void setBackgroundImage (int hBitmap) { + super.setBackgroundImage (hBitmap); + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) OS.InvalidateRect (hwndText, null, true); + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0) OS.InvalidateRect (hwndList, null, true); +} + +void setBackgroundPixel (int pixel) { + super.setBackgroundPixel (pixel); + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) OS.InvalidateRect (hwndText, null, true); + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0) OS.InvalidateRect (hwndList, null, true); +} + +void setBounds (int x, int y, int width, int height, int flags) { + /* + * Feature in Windows. If the combo box has the CBS_DROPDOWN + * or CBS_DROPDOWNLIST style, Windows uses the height that the + * programmer sets in SetWindowPos () to control height of the + * drop down list. When the width is non-zero, Windows remembers + * this value and sets the height to be the height of the text + * field part of the combo box. If the width is zero, Windows + * allows the height to have any value. Therefore, when the + * programmer sets and then queries the height, the values can + * be different depending on the width. The problem occurs when + * the programmer uses computeSize () to determine the preferred + * height (always the height of the text field) and then uses + * this value to set the height of the combo box. The result + * is a combo box with a zero size drop down list. The fix, is + * to always set the height to show a fixed number of combo box + * items and ignore the height value that the programmer supplies. + */ + if ((style & DWT.DROP_DOWN) !is 0) { + height = getTextHeight () + (getItemHeight () * visibleCount) + 2; + /* + * Feature in Windows. When a drop down combo box is resized, + * the combo box resizes the height of the text field and uses + * the height provided in SetWindowPos () to determine the height + * of the drop down list. For some reason, the combo box redraws + * the whole area, not just the text field. The fix is to set the + * SWP_NOSIZE bits when the height of text field and the drop down + * list is the same as the requested height. + * + * NOTE: Setting the width of a combo box to zero does not update + * the width of the drop down control rect. If the width of the + * combo box is zero, then do not set SWP_NOSIZE. + */ + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + if (rect.right - rect.left !is 0) { + if (OS.SendMessage (handle, OS.CB_GETDROPPEDCONTROLRECT, 0, rect) !is 0) { + int oldWidth = rect.right - rect.left, oldHeight = rect.bottom - rect.top; + if (oldWidth is width && oldHeight is height) flags |= OS.SWP_NOSIZE; + } + } + SetWindowPos (handle, 0, x, y, width, height, flags); + } else { + super.setBounds (x, y, width, height, flags); + } +} + +public void setFont (Font font) { + checkWidget (); + super.setFont (font); + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (); +} + +void setForegroundPixel (int pixel) { + super.setForegroundPixel (pixel); + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) OS.InvalidateRect (hwndText, null, true); + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0) OS.InvalidateRect (hwndList, null, true); +} + +/** + * Sets the text of the item in the receiver's list at the given + * zero-relative index to the string argument. + * + * @param index the index for the item + * @param string the new text for the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setItem (int index, String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + int selection = getSelectionIndex (); + remove (index, false); + if (isDisposed ()) return; + add (string, index); + if (selection !is -1) select (selection); +} + +/** + * Sets the receiver's list to be the given array of items. + * + * @param items the array of items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the items array is null</li> + * <li>ERROR_INVALID_ARGUMENT - if an item in the items array is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setItems (String [] items) { + checkWidget (); + if (items is null) error (DWT.ERROR_NULL_ARGUMENT); + for (int i=0; i<items.length; i++) { + if (items [i] is null) error (DWT.ERROR_INVALID_ARGUMENT); + } + RECT rect = null; + int hDC = 0, oldFont = 0, newFont = 0, newWidth = 0; + if ((style & DWT.H_SCROLL) !is 0) { + rect = new RECT (); + hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + setScrollWidth (0); + } + OS.SendMessage (handle, OS.CB_RESETCONTENT, 0, 0); + int codePage = getCodePage (); + for (int i=0; i<items.length; i++) { + String string = items [i]; + TCHAR buffer = new TCHAR (codePage, string, true); + int code = OS.SendMessage (handle, OS.CB_ADDSTRING, 0, buffer); + if (code is OS.CB_ERR) error (DWT.ERROR_ITEM_NOT_ADDED); + if (code is OS.CB_ERRSPACE) error (DWT.ERROR_ITEM_NOT_ADDED); + if ((style & DWT.H_SCROLL) !is 0) { + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + OS.DrawText (hDC, buffer, -1, rect, flags); + newWidth = Math.max (newWidth, rect.right - rect.left); + } + } + if ((style & DWT.H_SCROLL) !is 0) { + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + setScrollWidth (newWidth + 3); + } + sendEvent (DWT.Modify); + // widget could be disposed at this point +} + +/** + * Marks the receiver's list as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param visible the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ void setListVisible (bool visible) { + checkWidget (); + OS.SendMessage (handle, OS.CB_SHOWDROPDOWN, visible ? 1 : 0, 0); +} + +/** + * Sets the orientation of the receiver, which must be one + * of the constants <code>DWT.LEFT_TO_RIGHT</code> or <code>DWT.RIGHT_TO_LEFT</code>. + * <p> + * + * @param orientation new orientation style + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1.2 + */ +public void setOrientation (int orientation) { + checkWidget(); + if (OS.IsWinCE) return; + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return; + int flags = DWT.RIGHT_TO_LEFT | DWT.LEFT_TO_RIGHT; + if ((orientation & flags) is 0 || (orientation & flags) is flags) return; + style &= ~flags; + style |= orientation & flags; + int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + style |= DWT.MIRRORED; + bits |= OS.WS_EX_LAYOUTRTL; + } else { + style &= ~DWT.MIRRORED; + bits &= ~OS.WS_EX_LAYOUTRTL; + } + OS.SetWindowLong (handle, OS.GWL_EXSTYLE, bits); + int hwndText = 0, hwndList = 0; + COMBOBOXINFO pcbi = new COMBOBOXINFO (); + pcbi.cbSize = COMBOBOXINFO.sizeof; + if (OS.GetComboBoxInfo (handle, pcbi)) { + hwndText = pcbi.hwndItem; + hwndList = pcbi.hwndList; + } + if (hwndText !is 0) { + int bits1 = OS.GetWindowLong (hwndText, OS.GWL_EXSTYLE); + int bits2 = OS.GetWindowLong (hwndText, OS.GWL_STYLE); + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + bits1 |= OS.WS_EX_RIGHT | OS.WS_EX_RTLREADING; + bits2 |= OS.ES_RIGHT; + } else { + bits1 &= ~(OS.WS_EX_RIGHT | OS.WS_EX_RTLREADING); + bits2 &= ~OS.ES_RIGHT; + } + OS.SetWindowLong (hwndText, OS.GWL_EXSTYLE, bits1); + OS.SetWindowLong (hwndText, OS.GWL_STYLE, bits2); + + /* + * Bug in Windows. For some reason, the single line text field + * portion of the combo box does not redraw to reflect the new + * style bits. The fix is to force the widget to be resized by + * temporarily shrinking and then growing the width and height. + */ + RECT rect = new RECT (); + OS.GetWindowRect (hwndText, rect); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + OS.GetWindowRect (handle, rect); + int widthCombo = rect.right - rect.left, heightCombo = rect.bottom - rect.top; + int uFlags = OS.SWP_NOMOVE | OS.SWP_NOZORDER | OS.SWP_NOACTIVATE; + SetWindowPos (hwndText, 0, 0, 0, width - 1, height - 1, uFlags); + SetWindowPos (handle, 0, 0, 0, widthCombo - 1, heightCombo - 1, uFlags); + SetWindowPos (hwndText, 0, 0, 0, width, height, uFlags); + SetWindowPos (handle, 0, 0, 0, widthCombo, heightCombo, uFlags); + OS.InvalidateRect (handle, null, true); + } + if (hwndList !is 0) { + int bits1 = OS.GetWindowLong (hwndList, OS.GWL_EXSTYLE); + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + bits1 |= OS.WS_EX_LAYOUTRTL; + } else { + bits1 &= ~OS.WS_EX_LAYOUTRTL; + } + OS.SetWindowLong (hwndList, OS.GWL_EXSTYLE, bits1); + } +} + +void setScrollWidth () { + int newWidth = 0; + RECT rect = new RECT (); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + int cp = getCodePage (); + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + for (int i=0; i<count; i++) { + int length = OS.SendMessage (handle, OS.CB_GETLBTEXTLEN, i, 0); + if (length !is OS.CB_ERR) { + TCHAR buffer = new TCHAR (cp, length + 1); + int result = OS.SendMessage (handle, OS.CB_GETLBTEXT, i, buffer); + if (result !is OS.CB_ERR) { + OS.DrawText (hDC, buffer, -1, rect, flags); + newWidth = Math.max (newWidth, rect.right - rect.left); + } + } + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + setScrollWidth (newWidth + 3); +} + +void setScrollWidth (int scrollWidth) { + this.scrollWidth = scrollWidth; + if ((style & DWT.SIMPLE) !is 0) { + OS.SendMessage (handle, OS.CB_SETHORIZONTALEXTENT, scrollWidth, 0); + return; + } + bool scroll = false; + int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); + if (count > 3) { + int maxWidth = 0; + if (OS.IsWinCE || OS.WIN32_VERSION < OS.VERSION (4, 10)) { + RECT rect = new RECT (); + OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0); + maxWidth = (rect.right - rect.left) / 4; + } else { + int hmonitor = OS.MonitorFromWindow (handle, OS.MONITOR_DEFAULTTONEAREST); + MONITORINFO lpmi = new MONITORINFO (); + lpmi.cbSize = MONITORINFO.sizeof; + OS.GetMonitorInfo (hmonitor, lpmi); + maxWidth = (lpmi.rcWork_right - lpmi.rcWork_left) / 4; + } + scroll = scrollWidth > maxWidth; + } + if (scroll) { + OS.SendMessage (handle, OS.CB_SETDROPPEDWIDTH, 0, 0); + OS.SendMessage (handle, OS.CB_SETHORIZONTALEXTENT, scrollWidth, 0); + } else { + scrollWidth += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + OS.SendMessage (handle, OS.CB_SETDROPPEDWIDTH, scrollWidth, 0); + OS.SendMessage (handle, OS.CB_SETHORIZONTALEXTENT, 0, 0); + } +} + +void setScrollWidth (TCHAR buffer, bool grow) { + RECT rect = new RECT (); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + OS.DrawText (hDC, buffer, -1, rect, flags); + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + setScrollWidth (rect.right - rect.left, grow); +} + +void setScrollWidth (int newWidth, bool grow) { + if (grow) { + if (newWidth <= scrollWidth) return; + setScrollWidth (newWidth + 3); + } else { + if (newWidth < scrollWidth) return; + setScrollWidth (); + } +} + +/** + * Sets the selection in the receiver's text field to the + * range specified by the argument whose x coordinate is the + * start of the selection and whose y coordinate is the end + * of the selection. + * + * @param selection a point representing the new selection start and end + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (Point selection) { + checkWidget (); + if (selection is null) error (DWT.ERROR_NULL_ARGUMENT); + int start = selection.x, end = selection.y; + if (!OS.IsUnicode && OS.IsDBLocale) { + start = wcsToMbcsPos (start); + end = wcsToMbcsPos (end); + } + int bits = (start & 0xFFFF) | ((end << 16) & 0xFFFF0000); + OS.SendMessage (handle, OS.CB_SETEDITSEL, 0, bits); +} + +/** + * Sets the contents of the receiver's text field to the + * given string. + * <p> + * Note: The text field in a <code>Combo</code> is typically + * only capable of displaying a single line of text. Thus, + * setting the text to a string containing line breaks or + * other special characters will probably cause it to + * display incorrectly. + * </p> + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if ((style & DWT.READ_ONLY) !is 0) { + int index = indexOf (string); + if (index !is -1) select (index); + return; + } + int limit = LIMIT; + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) { + limit = OS.SendMessage (hwndText, OS.EM_GETLIMITTEXT, 0, 0); + } + if (string.length () > limit) string = string.substring (0, limit); + TCHAR buffer = new TCHAR (getCodePage (), string, true); + if (OS.SetWindowText (handle, buffer)) { + sendEvent (DWT.Modify); + // widget could be disposed at this point + } +} + +/** + * Sets the maximum number of characters that the receiver's + * text field is capable of holding to be the argument. + * <p> + * To reset this value to the default, use <code>setTextLimit(Combo.LIMIT)</code>. + * Specifying a limit value larger than <code>Combo.LIMIT</code> sets the + * receiver's limit to <code>Combo.LIMIT</code>. + * </p> + * @param limit new text limit + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #LIMIT + */ +public void setTextLimit (int limit) { + checkWidget (); + if (limit is 0) error (DWT.ERROR_CANNOT_BE_ZERO); + OS.SendMessage (handle, OS.CB_LIMITTEXT, limit, 0); +} + +void setToolTipText (Shell shell, String string) { + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndText !is 0) shell.setToolTipText (hwndText, string); + if (hwndList !is 0) shell.setToolTipText (hwndList, string); + shell.setToolTipText (handle, string); +} + +/** + * Sets the number of items that are visible in the drop + * down portion of the receiver's list. + * <p> + * Note: This operation is a hint and is not supported on + * platforms that do not have this concept. + * </p> + * + * @param count the new number of items to be visible + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void setVisibleItemCount (int count) { + checkWidget (); + if (count < 0) return; + visibleCount = count; + if ((style & DWT.DROP_DOWN) !is 0) { + forceResize (); + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + int flags = OS.SWP_NOMOVE | OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; + setBounds (0, 0, rect.right - rect.left, rect.bottom - rect.top, flags); + } +} + +void subclass () { + super.subclass (); + int newProc = display.windowProc; + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) { + OS.SetWindowLong (hwndText, OS.GWL_WNDPROC, newProc); + } + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0) { + OS.SetWindowLong (hwndList, OS.GWL_WNDPROC, newProc); + } +} + +bool translateTraversal (MSG msg) { + /* + * When the combo box is dropped down, allow return + * to select an item in the list and escape to close + * the combo box. + */ + switch (msg.wParam) { + case OS.VK_RETURN: + case OS.VK_ESCAPE: + if ((style & DWT.DROP_DOWN) !is 0) { + if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) !is 0) { + return false; + } + } + } + return super.translateTraversal (msg); +} + +bool traverseEscape () { + if ((style & DWT.DROP_DOWN) !is 0) { + if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) !is 0) { + OS.SendMessage (handle, OS.CB_SHOWDROPDOWN, 0, 0); + return true; + } + } + return super.traverseEscape (); +} + +bool traverseReturn () { + if ((style & DWT.DROP_DOWN) !is 0) { + if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) !is 0) { + OS.SendMessage (handle, OS.CB_SHOWDROPDOWN, 0, 0); + return true; + } + } + return super.traverseReturn (); +} + +void unsubclass () { + super.unsubclass (); + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0 && EditProc !is 0) { + OS.SetWindowLong (hwndText, OS.GWL_WNDPROC, EditProc); + } + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0 && ListProc !is 0) { + OS.SetWindowLong (hwndList, OS.GWL_WNDPROC, ListProc); + } +} + +String verifyText (String string, int start, int end, Event keyEvent) { + Event event = new Event (); + event.text = string; + event.start = start; + event.end = end; + if (keyEvent !is null) { + event.character = keyEvent.character; + event.keyCode = keyEvent.keyCode; + event.stateMask = keyEvent.stateMask; + } + if (!OS.IsUnicode && OS.IsDBLocale) { + event.start = mbcsToWcsPos (start); + event.end = mbcsToWcsPos (end); + } + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the verify + * event. If this happens, answer null to cancel + * the operation. + */ + sendEvent (DWT.Verify, event); + if (!event.doit || isDisposed ()) return null; + return event.text; +} + +int wcsToMbcsPos (int wcsPos) { + if (wcsPos <= 0) return 0; + if (OS.IsUnicode) return wcsPos; + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText is 0) return wcsPos; + int mbcsSize = OS.GetWindowTextLengthA (hwndText); + if (mbcsSize is 0) return 0; + byte [] buffer = new byte [mbcsSize + 1]; + OS.GetWindowTextA (hwndText, buffer, mbcsSize + 1); + int mbcsPos = 0, wcsCount = 0; + while (mbcsPos < mbcsSize) { + if (wcsPos is wcsCount) break; + if (OS.IsDBCSLeadByte (buffer [mbcsPos++])) mbcsPos++; + wcsCount++; + } + return mbcsPos; +} + +int widgetExtStyle () { + return super.widgetExtStyle () & ~OS.WS_EX_NOINHERITLAYOUT; +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.CBS_AUTOHSCROLL | OS.CBS_NOINTEGRALHEIGHT | OS.WS_HSCROLL |OS.WS_VSCROLL; + if ((style & DWT.SIMPLE) !is 0) return bits | OS.CBS_SIMPLE; + if ((style & DWT.READ_ONLY) !is 0) return bits | OS.CBS_DROPDOWNLIST; + return bits | OS.CBS_DROPDOWN; +} + +TCHAR windowClass () { + return ComboClass; +} + +int windowProc () { + return ComboProc; +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + if (hwnd !is handle) { + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if ((hwndText !is 0 && hwnd is hwndText) || (hwndList !is 0 && hwnd is hwndList)) { + LRESULT result = null; + switch (msg) { + /* Keyboard messages */ + case OS.WM_CHAR: result = wmChar (hwnd, wParam, lParam); break; + case OS.WM_IME_CHAR: result = wmIMEChar (hwnd, wParam, lParam); break; + case OS.WM_KEYDOWN: result = wmKeyDown (hwnd, wParam, lParam); break; + case OS.WM_KEYUP: result = wmKeyUp (hwnd, wParam, lParam); break; + case OS.WM_SYSCHAR: result = wmSysChar (hwnd, wParam, lParam); break; + case OS.WM_SYSKEYDOWN: result = wmSysKeyDown (hwnd, wParam, lParam); break; + case OS.WM_SYSKEYUP: result = wmSysKeyUp (hwnd, wParam, lParam); break; + + /* Mouse Messages */ + case OS.WM_CAPTURECHANGED: result = wmCaptureChanged (hwnd, wParam, lParam); break; + case OS.WM_LBUTTONDBLCLK: result = wmLButtonDblClk (hwnd, wParam, lParam); break; + case OS.WM_LBUTTONDOWN: result = wmLButtonDown (hwnd, wParam, lParam); break; + case OS.WM_LBUTTONUP: result = wmLButtonUp (hwnd, wParam, lParam); break; + case OS.WM_MBUTTONDBLCLK: result = wmMButtonDblClk (hwnd, wParam, lParam); break; + case OS.WM_MBUTTONDOWN: result = wmMButtonDown (hwnd, wParam, lParam); break; + case OS.WM_MBUTTONUP: result = wmMButtonUp (hwnd, wParam, lParam); break; + case OS.WM_MOUSEHOVER: result = wmMouseHover (hwnd, wParam, lParam); break; + case OS.WM_MOUSELEAVE: result = wmMouseLeave (hwnd, wParam, lParam); break; + case OS.WM_MOUSEMOVE: result = wmMouseMove (hwnd, wParam, lParam); break; +// case OS.WM_MOUSEWHEEL: result = wmMouseWheel (hwnd, wParam, lParam); break; + case OS.WM_RBUTTONDBLCLK: result = wmRButtonDblClk (hwnd, wParam, lParam); break; + case OS.WM_RBUTTONDOWN: result = wmRButtonDown (hwnd, wParam, lParam); break; + case OS.WM_RBUTTONUP: result = wmRButtonUp (hwnd, wParam, lParam); break; + case OS.WM_XBUTTONDBLCLK: result = wmXButtonDblClk (hwnd, wParam, lParam); break; + case OS.WM_XBUTTONDOWN: result = wmXButtonDown (hwnd, wParam, lParam); break; + case OS.WM_XBUTTONUP: result = wmXButtonUp (hwnd, wParam, lParam); break; + + /* Paint messages */ + case OS.WM_PAINT: result = wmPaint (hwnd, wParam, lParam); break; + + /* Menu messages */ + case OS.WM_CONTEXTMENU: result = wmContextMenu (hwnd, wParam, lParam); break; + + /* Clipboard messages */ + case OS.WM_CLEAR: + case OS.WM_CUT: + case OS.WM_PASTE: + case OS.WM_UNDO: + case OS.EM_UNDO: + case OS.WM_SETTEXT: + if (hwnd is hwndText) { + result = wmClipboard (hwnd, msg, wParam, lParam); + } + break; + } + if (result !is null) return result.value; + return callWindowProc (hwnd, msg, wParam, lParam); + } + } + if (msg is OS.CB_SETCURSEL) { + if ((style & DWT.READ_ONLY) !is 0) { + if (hooks (DWT.Verify) || filters (DWT.Verify)) { + String oldText = getText (), newText = null; + if (wParam is -1) { + newText = ""; + } else { + if (0 <= wParam && wParam < getItemCount ()) { + newText = getItem (wParam); + } + } + if (newText !is null && !newText.equals (oldText)) { + int length = OS.GetWindowTextLength (handle); + oldText = newText; + newText = verifyText (newText, 0, length, null); + if (newText is null) return 0; + if (!newText.equals (oldText)) { + int index = indexOf (newText); + if (index !is -1 && index !is wParam) { + return callWindowProc (handle, OS.CB_SETCURSEL, index, lParam); + } + } + } + } + } + } + return super.windowProc (hwnd, msg, wParam, lParam); +} + +LRESULT WM_CTLCOLOR (int wParam, int lParam) { + return wmColorChild (wParam, lParam); +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + int code = callWindowProc (handle, OS.WM_GETDLGCODE, wParam, lParam); + return new LRESULT (code | OS.DLGC_WANTARROWS); +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + /* + * Bug in Windows. When a combo box that is read only + * is disposed in CBN_KILLFOCUS, Windows segment faults. + * The fix is to send focus from WM_KILLFOCUS instead + * of CBN_KILLFOCUS. + * + * NOTE: In version 6 of COMCTL32.DLL, the bug is fixed. + */ + if ((style & DWT.READ_ONLY) !is 0) { + return super.WM_KILLFOCUS (wParam, lParam); + } + + /* + * Return NULL - Focus notification is + * done in WM_COMMAND by CBN_KILLFOCUS. + */ + return null; +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + /* + * Feature in Windows. When an editable combo box is dropped + * down and the text in the entry field partially matches an + * item in the list, Windows selects the item but doesn't send + * WM_COMMAND with CBN_SELCHANGE. The fix is to detect that + * the selection has changed and issue the notification. + */ + int oldSelection = OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); + LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); + if (result is LRESULT.ZERO) return result; + if ((style & DWT.READ_ONLY) is 0) { + int newSelection = OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); + if (oldSelection !is newSelection) { + sendEvent (DWT.Modify); + if (isDisposed ()) return LRESULT.ZERO; + sendEvent (DWT.Selection); + if (isDisposed ()) return LRESULT.ZERO; + } + } + return result; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + /* + * Return NULL - Focus notification is + * done by WM_COMMAND with CBN_SETFOCUS. + */ + return null; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + /* + * Bug in Windows. If the combo box has the CBS_SIMPLE style, + * the list portion of the combo box is not redrawn when the + * combo box is resized. The fix is to force a redraw when + * the size has changed. + */ + if ((style & DWT.SIMPLE) !is 0) { + LRESULT result = super.WM_SIZE (wParam, lParam); + if (OS.IsWindowVisible (handle)) { + if (OS.IsWinCE) { + int hwndText = OS.GetDlgItem (handle, CBID_EDIT); + if (hwndText !is 0) OS.InvalidateRect (hwndText, null, true); + int hwndList = OS.GetDlgItem (handle, CBID_LIST); + if (hwndList !is 0) OS.InvalidateRect (hwndList, null, true); + } else { + int uFlags = OS.RDW_ERASE | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, uFlags); + } + } + return result; + } + + /* + * Feature in Windows. When an editable drop down combo box + * contains text that does not correspond to an item in the + * list, when the widget is resized, it selects the closest + * match from the list. The fix is to remember the original + * text and reset it after the widget is resized. + */ + LRESULT result = null; + if ((style & DWT.READ_ONLY) !is 0) { + result = super.WM_SIZE (wParam, lParam); + } else { + int index = OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); + bool redraw = false; + TCHAR buffer = null; + int [] start = null, end = null; + if (index is OS.CB_ERR) { + int length = OS.GetWindowTextLength (handle); + if (length !is 0) { + buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (handle, buffer, length + 1); + start = new int [1]; end = new int [1]; + OS.SendMessage (handle, OS.CB_GETEDITSEL, start, end); + redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) setRedraw (false); + } + } + result = super.WM_SIZE (wParam, lParam); + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the resize + * event. If this happens, end the processing of the + * Windows message by returning the result of the + * WM_SIZE message. + */ + if (isDisposed ()) return result; + if (buffer !is null) { + OS.SetWindowText (handle, buffer); + int bits = (start [0] & 0xFFFF) | ((end [0] << 16) & 0xFFFF0000); + OS.SendMessage (handle, OS.CB_SETEDITSEL, 0, bits); + if (redraw) setRedraw (true); + } + } + /* + * Feature in Windows. When CB_SETDROPPEDWIDTH is called with + * a width that is smaller than the current size of the combo + * box, it is ignored. This the fix is to set the width after + * the combo box has been resized. + */ + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (scrollWidth); + return result; +} + +LRESULT wmChar (int hwnd, int wParam, int lParam) { + if (ignoreCharacter) return null; + LRESULT result = super.wmChar (hwnd, wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. For some reason, when the + * widget is a single line text widget, when the + * user presses tab, return or escape, Windows beeps. + * The fix is to look for these keys and not call + * the window proc. + * + * NOTE: This only happens when the drop down list + * is not visible. + */ + switch (wParam) { + case DWT.TAB: return LRESULT.ZERO; + case DWT.CR: + if (!ignoreDefaultSelection) postEvent (DWT.DefaultSelection); + ignoreDefaultSelection = false; + // FALL THROUGH + case DWT.ESC: + if ((style & DWT.DROP_DOWN) !is 0) { + if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) is 0) { + return LRESULT.ZERO; + } + } + } + return result; +} + +LRESULT wmClipboard (int hwndText, int msg, int wParam, int lParam) { + if ((style & DWT.READ_ONLY) !is 0) return null; + if (!hooks (DWT.Verify) && !filters (DWT.Verify)) return null; + bool call = false; + int [] start = new int [1], end = new int [1]; + String newText = null; + switch (msg) { + case OS.WM_CLEAR: + case OS.WM_CUT: + OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); + if (start [0] !is end [0]) { + newText = ""; + call = true; + } + break; + case OS.WM_PASTE: + OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); + newText = getClipboardText (); + break; + case OS.EM_UNDO: + case OS.WM_UNDO: + if (OS.SendMessage (hwndText, OS.EM_CANUNDO, 0, 0) !is 0) { + ignoreModify = true; + OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); + OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); + int length = OS.GetWindowTextLength (hwndText); + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); + if (length !is 0 && newStart [0] !is newEnd [0]) { + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (hwndText, buffer, length + 1); + newText = buffer.toString (newStart [0], newEnd [0] - newStart [0]); + } else { + newText = ""; + } + OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); + ignoreModify = false; + } + break; + case OS.WM_SETTEXT: + end [0] = OS.GetWindowTextLength (hwndText); + int length = OS.IsUnicode ? OS.wcslen (lParam) : OS.strlen (lParam); + TCHAR buffer = new TCHAR (getCodePage (), length); + int byteCount = buffer.length () * TCHAR.sizeof; + OS.MoveMemory (buffer, lParam, byteCount); + newText = buffer.toString (0, length); + break; + } + if (newText !is null) { + String oldText = newText; + newText = verifyText (newText, start [0], end [0], null); + if (newText is null) return LRESULT.ZERO; + if (!newText.equals (oldText)) { + if (call) { + OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); + } + TCHAR buffer = new TCHAR (getCodePage (), newText, true); + if (msg is OS.WM_SETTEXT) { + int hHeap = OS.GetProcessHeap (); + int byteCount = buffer.length () * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + int code = OS.CallWindowProc (EditProc, hwndText, msg, wParam, pszText); + OS.HeapFree (hHeap, 0, pszText); + return new LRESULT (code); + } else { + OS.SendMessage (hwndText, OS.EM_REPLACESEL, 0, buffer); + return LRESULT.ZERO; + } + } + } + return null; +} + +LRESULT wmCommandChild (int wParam, int lParam) { + int code = wParam >> 16; + switch (code) { + case OS.CBN_EDITCHANGE: + if (ignoreModify) break; + /* + * Feature in Windows. If the combo box list selection is + * queried using CB_GETCURSEL before the WM_COMMAND (with + * CBN_EDITCHANGE) returns, CB_GETCURSEL returns the previous + * selection in the list. It seems that the combo box sends + * the WM_COMMAND before it makes the selection in the list box + * match the entry field. The fix is remember that no selection + * in the list should exist in this case. + */ + noSelection = true; + sendEvent (DWT.Modify); + if (isDisposed ()) return LRESULT.ZERO; + noSelection = false; + break; + case OS.CBN_SELCHANGE: + /* + * Feature in Windows. If the text in an editable combo box + * is queried using GetWindowText () before the WM_COMMAND + * (with CBN_SELCHANGE) returns, GetWindowText () returns is + * the previous text in the combo box. It seems that the combo + * box sends the WM_COMMAND before it updates the text field to + * match the list selection. The fix is to force the text field + * to match the list selection by re-selecting the list item. + */ + int index = OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); + if (index !is OS.CB_ERR) { + OS.SendMessage (handle, OS.CB_SETCURSEL, index, 0); + } + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the modify + * event. If this happens, end the processing of the + * Windows message by returning zero as the result of + * the window proc. + */ + sendEvent (DWT.Modify); + if (isDisposed ()) return LRESULT.ZERO; + postEvent (DWT.Selection); + break; + case OS.CBN_SETFOCUS: + sendFocusEvent (DWT.FocusIn); + if (isDisposed ()) return LRESULT.ZERO; + break; + case OS.CBN_KILLFOCUS: + /* + * Bug in Windows. When a combo box that is read only + * is disposed in CBN_KILLFOCUS, Windows segment faults. + * The fix is to send focus from WM_KILLFOCUS instead + * of CBN_KILLFOCUS. + * + * NOTE: In version 6 of COMCTL32.DLL, the bug is fixed. + */ + if ((style & DWT.READ_ONLY) !is 0) break; + sendFocusEvent (DWT.FocusOut); + if (isDisposed ()) return LRESULT.ZERO; + break; + } + return super.wmCommandChild (wParam, lParam); +} + +LRESULT wmIMEChar (int hwnd, int wParam, int lParam) { + + /* Process a DBCS character */ + Display display = this.display; + display.lastKey = 0; + display.lastAscii = wParam; + display.lastVirtual = display.lastNull = display.lastDead = false; + if (!sendKeyEvent (DWT.KeyDown, OS.WM_IME_CHAR, wParam, lParam)) { + return LRESULT.ZERO; + } + + /* + * Feature in Windows. The Windows text widget uses + * two 2 WM_CHAR's to process a DBCS key instead of + * using WM_IME_CHAR. The fix is to allow the text + * widget to get the WM_CHAR's but ignore sending + * them to the application. + */ + ignoreCharacter = true; + int result = callWindowProc (hwnd, OS.WM_IME_CHAR, wParam, lParam); + MSG msg = new MSG (); + int flags = OS.PM_REMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; + while (OS.PeekMessage (msg, hwnd, OS.WM_CHAR, OS.WM_CHAR, flags)) { + OS.TranslateMessage (msg); + OS.DispatchMessage (msg); + } + ignoreCharacter = false; + + sendKeyEvent (DWT.KeyUp, OS.WM_IME_CHAR, wParam, lParam); + // widget could be disposed at this point + display.lastKey = display.lastAscii = 0; + return new LRESULT (result); +} + +LRESULT wmKeyDown (int hwnd, int wParam, int lParam) { + if (ignoreCharacter) return null; + LRESULT result = super.wmKeyDown (hwnd, wParam, lParam); + if (result !is null) return result; + ignoreDefaultSelection = false; + if (wParam is OS.VK_RETURN) { + if ((style & DWT.DROP_DOWN) !is 0) { + if (OS.SendMessage (handle, OS.CB_GETDROPPEDSTATE, 0, 0) !is 0) { + ignoreDefaultSelection = true; + } + } + } + return result; +} + +LRESULT wmSysKeyDown (int hwnd, int wParam, int lParam) { + /* + * Feature in Windows. When an editable combo box is dropped + * down using Alt+Down and the text in the entry field partially + * matches an item in the list, Windows selects the item but doesn't + * send WM_COMMAND with CBN_SELCHANGE. The fix is to detect that + * the selection has changed and issue the notification. + */ + int oldSelection = OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); + LRESULT result = super.wmSysKeyDown (hwnd, wParam, lParam); + if (result !is null) return result; + if ((style & DWT.READ_ONLY) is 0) { + if (wParam is OS.VK_DOWN) { + int code = callWindowProc (hwnd, OS.WM_SYSKEYDOWN, wParam, lParam); + int newSelection = OS.SendMessage (handle, OS.CB_GETCURSEL, 0, 0); + if (oldSelection !is newSelection) { + sendEvent (DWT.Modify); + if (isDisposed ()) return LRESULT.ZERO; + sendEvent (DWT.Selection); + if (isDisposed ()) return LRESULT.ZERO; + } + return new LRESULT (code); + } + } + return result; +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Composite.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1609 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Composite; + +import dwt.widgets.Scrollable; +import dwt.widgets.Control; + +class Composite : Scrollable { +public Control [] getChildren () ; +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Font; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.Callback; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MSG; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.NMTTDISPINFO; +import dwt.internal.win32.NMTTDISPINFOA; +import dwt.internal.win32.NMTTDISPINFOW; +import dwt.internal.win32.OS; +import dwt.internal.win32.PAINTSTRUCT; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.WINDOWPOS; + +/** + * Instances of this class are controls which are capable + * of containing other controls. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>NO_BACKGROUND, NO_FOCUS, NO_MERGE_PAINTS, NO_REDRAW_RESIZE, NO_RADIO_GROUP, EMBEDDED, DOUBLE_BUFFERED</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: The <code>NO_BACKGROUND</code>, <code>NO_FOCUS</code>, <code>NO_MERGE_PAINTS</code>, + * and <code>NO_REDRAW_RESIZE</code> styles are intended for use with <code>Canvas</code>. + * They can be used with <code>Composite</code> if you are drawing your own, but their + * behavior is undefined if they are used with subclasses of <code>Composite</code> other + * than <code>Canvas</code>. + * </p><p> + * Note: The <code>CENTER</code> style, although undefined for composites, has the + * same value as <code>EMBEDDED</code> (which is used to embed widgets from other + * widget toolkits into DWT). On some operating systems (GTK, Motif), this may cause + * the children of this composite to be obscured. The <code>EMBEDDED</code> style + * is for use by other widget toolkits and should normally never be used. + * </p><p> + * This class may be subclassed by custom control implementors + * who are building controls that are constructed from aggregates + * of other controls. + * </p> + * + * @see Canvas + */ + +public class Composite extends Scrollable { + Layout layout; + int font; + WINDOWPOS [] lpwp; + Control [] tabList; + int layoutCount, backgroundMode; + +/** + * Prevents uninitialized instances from being created outside the package. + */ +Composite () { +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a widget which will be the parent of the new instance (cannot be null) + * @param style the style of widget to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + * + * @see DWT#NO_BACKGROUND + * @see DWT#NO_FOCUS + * @see DWT#NO_MERGE_PAINTS + * @see DWT#NO_REDRAW_RESIZE + * @see DWT#NO_RADIO_GROUP + * @see Widget#getStyle + */ +public Composite (Composite parent, int style) { + super (parent, style); +} + +Control [] _getChildren () { + int count = 0; + int hwndChild = OS.GetWindow (handle, OS.GW_CHILD); + if (hwndChild is 0) return new Control [0]; + while (hwndChild !is 0) { + count++; + hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT); + } + Control [] children = new Control [count]; + int index = 0; + hwndChild = OS.GetWindow (handle, OS.GW_CHILD); + while (hwndChild !is 0) { + Control control = display.getControl (hwndChild); + if (control !is null && control !is this) { + children [index++] = control; + } + hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT); + } + if (count is index) return children; + Control [] newChildren = new Control [index]; + System.arraycopy (children, 0, newChildren, 0, index); + return newChildren; +} + +Control [] _getTabList () { + if (tabList is null) return tabList; + int count = 0; + for (int i=0; i<tabList.length; i++) { + if (!tabList [i].isDisposed ()) count++; + } + if (count is tabList.length) return tabList; + Control [] newList = new Control [count]; + int index = 0; + for (int i=0; i<tabList.length; i++) { + if (!tabList [i].isDisposed ()) { + newList [index++] = tabList [i]; + } + } + tabList = newList; + return tabList; +} + +/** + * Clears any data that has been cached by a Layout for all widgets that + * are in the parent hierarchy of the changed control up to and including the + * receiver. If an ancestor does not have a layout, it is skipped. + * + * @param changed an array of controls that changed state and require a recalculation of size + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the changed array is null any of its controls are null or have been disposed</li> + * <li>ERROR_INVALID_PARENT - if any control in changed is not in the widget tree of the receiver</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void changed (Control[] changed) { + checkWidget (); + if (changed is null) error (DWT.ERROR_INVALID_ARGUMENT); + for (int i=0; i<changed.length; i++) { + Control control = changed [i]; + if (control is null) error (DWT.ERROR_INVALID_ARGUMENT); + if (control.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + bool ancestor = false; + Composite composite = control.parent; + while (composite !is null) { + ancestor = composite is this; + if (ancestor) break; + composite = composite.parent; + } + if (!ancestor) error (DWT.ERROR_INVALID_PARENT); + } + for (int i=0; i<changed.length; i++) { + Control child = changed [i]; + Composite composite = child.parent; + while (child !is this) { + if (composite.layout is null || !composite.layout.flushCache (child)) { + composite.state |= LAYOUT_CHANGED; + } + child = composite; + composite = child.parent; + } + } +} + +void checkBuffered () { + if (OS.IsWinCE || (state & CANVAS) is 0) { + super.checkBuffered (); + } +} + +protected void checkSubclass () { + /* Do nothing - Subclassing is allowed */ +} + +Control [] computeTabList () { + Control result [] = super.computeTabList (); + if (result.length is 0) return result; + Control [] list = tabList !is null ? _getTabList () : _getChildren (); + for (int i=0; i<list.length; i++) { + Control child = list [i]; + Control [] childList = child.computeTabList (); + if (childList.length !is 0) { + Control [] newResult = new Control [result.length + childList.length]; + System.arraycopy (result, 0, newResult, 0, result.length); + System.arraycopy (childList, 0, newResult, result.length, childList.length); + result = newResult; + } + } + return result; +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + Point size; + if (layout !is null) { + if (wHint is DWT.DEFAULT || hHint is DWT.DEFAULT) { + changed |= (state & LAYOUT_CHANGED) !is 0; + state &= ~LAYOUT_CHANGED; + size = layout.computeSize (this, wHint, hHint, changed); + } else { + size = new Point (wHint, hHint); + } + } else { + size = minimumSize (wHint, hHint, changed); + } + if (size.x is 0) size.x = DEFAULT_WIDTH; + if (size.y is 0) size.y = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) size.x = wHint; + if (hHint !is DWT.DEFAULT) size.y = hHint; + Rectangle trim = computeTrim (0, 0, size.x, size.y); + return new Point (trim.width, trim.height); +} + +void createHandle () { + super.createHandle (); + state |= CANVAS; + if ((style & (DWT.H_SCROLL | DWT.V_SCROLL)) is 0) { + state |= THEME_BACKGROUND; + } +} + +Composite findDeferredControl () { + return layoutCount > 0 ? this : parent.findDeferredControl (); +} + +Menu [] findMenus (Control control) { + if (control is this) return new Menu [0]; + Menu result [] = super.findMenus (control); + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + Control child = children [i]; + Menu [] menuList = child.findMenus (control); + if (menuList.length !is 0) { + Menu [] newResult = new Menu [result.length + menuList.length]; + System.arraycopy (result, 0, newResult, 0, result.length); + System.arraycopy (menuList, 0, newResult, result.length, menuList.length); + result = newResult; + } + } + return result; +} + +void fixChildren (Shell newShell, Shell oldShell, Decorations newDecorations, Decorations oldDecorations, Menu [] menus) { + super.fixChildren (newShell, oldShell, newDecorations, oldDecorations, menus); + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + children [i].fixChildren (newShell, oldShell, newDecorations, oldDecorations, menus); + } +} + +void fixTabList (Control control) { + if (tabList is null) return; + int count = 0; + for (int i=0; i<tabList.length; i++) { + if (tabList [i] is control) count++; + } + if (count is 0) return; + Control [] newList = null; + int length = tabList.length - count; + if (length !is 0) { + newList = new Control [length]; + int index = 0; + for (int i=0; i<tabList.length; i++) { + if (tabList [i] !is control) { + newList [index++] = tabList [i]; + } + } + } + tabList = newList; +} + +/** + * Returns the receiver's background drawing mode. This + * will be one of the following constants defined in class + * <code>DWT</code>: + * <code>INHERIT_NONE</code>, <code>INHERIT_DEFAULT</code>, + * <code>INHERTIT_FORCE</code>. + * + * @return the background mode + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT + * + * @since 3.2 + */ +public int getBackgroundMode () { + checkWidget (); + return backgroundMode; +} + +/** + * Returns a (possibly empty) array containing the receiver's children. + * Children are returned in the order that they are drawn. The topmost + * control appears at the beginning of the array. Subsequent controls + * draw beneath this control and appear later in the array. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of children, so modifying the array will + * not affect the receiver. + * </p> + * + * @return an array of children + * + * @see Control#moveAbove + * @see Control#moveBelow + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Control [] getChildren () { + checkWidget (); + return _getChildren (); +} + +int getChildrenCount () { + /* + * NOTE: The current implementation will count + * non-registered children. + */ + int count = 0; + int hwndChild = OS.GetWindow (handle, OS.GW_CHILD); + while (hwndChild !is 0) { + count++; + hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT); + } + return count; +} + +/** + * Returns layout which is associated with the receiver, or + * null if one has not been set. + * + * @return the receiver's layout or null + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Layout getLayout () { + checkWidget (); + return layout; +} + +/** + * Gets the (possibly empty) tabbing order for the control. + * + * @return tabList the ordered list of controls representing the tab order + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setTabList + */ +public Control [] getTabList () { + checkWidget (); + Control [] tabList = _getTabList (); + if (tabList is null) { + int count = 0; + Control [] list =_getChildren (); + for (int i=0; i<list.length; i++) { + if (list [i].isTabGroup ()) count++; + } + tabList = new Control [count]; + int index = 0; + for (int i=0; i<list.length; i++) { + if (list [i].isTabGroup ()) { + tabList [index++] = list [i]; + } + } + } + return tabList; +} + +bool hooksKeys () { + return hooks (DWT.KeyDown) || hooks (DWT.KeyUp); +} + +/** + * Returns <code>true</code> if the receiver has deferred + * the performing of layout, and <code>false</code> otherwise. + * + * @return the receiver's deferred layout state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setLayoutDeferred(bool) + * @see #isLayoutDeferred() + * + * @since 3.1 + */ +public bool getLayoutDeferred () { + checkWidget (); + return layoutCount > 0 ; +} + +/** + * Returns <code>true</code> if the receiver or any ancestor + * up to and including the receiver's nearest ancestor shell + * has deferred the performing of layouts. Otherwise, <code>false</code> + * is returned. + * + * @return the receiver's deferred layout state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setLayoutDeferred(bool) + * @see #getLayoutDeferred() + * + * @since 3.1 + */ +public bool isLayoutDeferred () { + checkWidget (); + return findDeferredControl () !is null; +} + +/** + * If the receiver has a layout, asks the layout to <em>lay out</em> + * (that is, set the size and location of) the receiver's children. + * If the receiver does not have a layout, do nothing. + * <p> + * This is equivalent to calling <code>layout(true)</code>. + * </p> + * <p> + * Note: Layout is different from painting. If a child is + * moved or resized such that an area in the parent is + * exposed, then the parent will paint. If no child is + * affected, the parent will not paint. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void layout () { + checkWidget (); + layout (true); +} + +/** + * If the receiver has a layout, asks the layout to <em>lay out</em> + * (that is, set the size and location of) the receiver's children. + * If the argument is <code>true</code> the layout must not rely + * on any information it has cached about the immediate children. If it + * is <code>false</code> the layout may (potentially) optimize the + * work it is doing by assuming that none of the receiver's + * children has changed state since the last layout. + * If the receiver does not have a layout, do nothing. + * <p> + * If a child is resized as a result of a call to layout, the + * resize event will invoke the layout of the child. The layout + * will cascade down through all child widgets in the receiver's widget + * tree until a child is encountered that does not resize. Note that + * a layout due to a resize will not flush any cached information + * (same as <code>layout(false)</code>). + * </p> + * <p> + * Note: Layout is different from painting. If a child is + * moved or resized such that an area in the parent is + * exposed, then the parent will paint. If no child is + * affected, the parent will not paint. + * </p> + * + * @param changed <code>true</code> if the layout must flush its caches, and <code>false</code> otherwise + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void layout (bool changed) { + checkWidget (); + if (layout is null) return; + layout (changed, false); +} + +/** + * If the receiver has a layout, asks the layout to <em>lay out</em> + * (that is, set the size and location of) the receiver's children. + * If the changed argument is <code>true</code> the layout must not rely + * on any information it has cached about its children. If it + * is <code>false</code> the layout may (potentially) optimize the + * work it is doing by assuming that none of the receiver's + * children has changed state since the last layout. + * If the all argument is <code>true</code> the layout will cascade down + * through all child widgets in the receiver's widget tree, regardless of + * whether the child has changed size. The changed argument is applied to + * all layouts. If the all argument is <code>false</code>, the layout will + * <em>not</em> cascade down through all child widgets in the receiver's widget + * tree. However, if a child is resized as a result of a call to layout, the + * resize event will invoke the layout of the child. Note that + * a layout due to a resize will not flush any cached information + * (same as <code>layout(false)</code>). + * </p> + * <p> + * Note: Layout is different from painting. If a child is + * moved or resized such that an area in the parent is + * exposed, then the parent will paint. If no child is + * affected, the parent will not paint. + * </p> + * + * @param changed <code>true</code> if the layout must flush its caches, and <code>false</code> otherwise + * @param all <code>true</code> if all children in the receiver's widget tree should be laid out, and <code>false</code> otherwise + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void layout (bool changed, bool all) { + checkWidget (); + if (layout is null && !all) return; + markLayout (changed, all); + updateLayout (true, all); +} + +/** + * Forces a lay out (that is, sets the size and location) of all widgets that + * are in the parent hierarchy of the changed control up to and including the + * receiver. The layouts in the hierarchy must not rely on any information + * cached about the changed control or any of its ancestors. The layout may + * (potentially) optimize the work it is doing by assuming that none of the + * peers of the changed control have changed state since the last layout. + * If an ancestor does not have a layout, skip it. + * <p> + * Note: Layout is different from painting. If a child is + * moved or resized such that an area in the parent is + * exposed, then the parent will paint. If no child is + * affected, the parent will not paint. + * </p> + * + * @param changed a control that has had a state change which requires a recalculation of its size + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the changed array is null any of its controls are null or have been disposed</li> + * <li>ERROR_INVALID_PARENT - if any control in changed is not in the widget tree of the receiver</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void layout (Control [] changed) { + checkWidget (); + if (changed is null) error (DWT.ERROR_INVALID_ARGUMENT); + for (int i=0; i<changed.length; i++) { + Control control = changed [i]; + if (control is null) error (DWT.ERROR_INVALID_ARGUMENT); + if (control.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + bool ancestor = false; + Composite composite = control.parent; + while (composite !is null) { + ancestor = composite is this; + if (ancestor) break; + composite = composite.parent; + } + if (!ancestor) error (DWT.ERROR_INVALID_PARENT); + } + int updateCount = 0; + Composite [] update = new Composite [16]; + for (int i=0; i<changed.length; i++) { + Control child = changed [i]; + Composite composite = child.parent; + while (child !is this) { + if (composite.layout !is null) { + composite.state |= LAYOUT_NEEDED; + if (!composite.layout.flushCache (child)) { + composite.state |= LAYOUT_CHANGED; + } + } + if (updateCount is update.length) { + Composite [] newUpdate = new Composite [update.length + 16]; + System.arraycopy (update, 0, newUpdate, 0, update.length); + update = newUpdate; + } + child = update [updateCount++] = composite; + composite = child.parent; + } + } + for (int i=updateCount-1; i>=0; i--) { + update [i].updateLayout (true, false); + } +} + +void markLayout (bool changed, bool all) { + if (layout !is null) { + state |= LAYOUT_NEEDED; + if (changed) state |= LAYOUT_CHANGED; + } + if (all) { + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + children [i].markLayout (changed, all); + } + } +} + +Point minimumSize (int wHint, int hHint, bool changed) { + Control [] children = _getChildren (); + int width = 0, height = 0; + for (int i=0; i<children.length; i++) { + Rectangle rect = children [i].getBounds (); + width = Math.max (width, rect.x + rect.width); + height = Math.max (height, rect.y + rect.height); + } + return new Point (width, height); +} + +bool redrawChildren () { + if (!super.redrawChildren ()) return false; + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + children [i].redrawChildren (); + } + return true; +} + +void releaseChildren (bool destroy) { + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (child !is null && !child.isDisposed ()) { + child.release (false); + } + } + super.releaseChildren (destroy); +} + +void releaseWidget () { + super.releaseWidget (); + if ((state & CANVAS) !is 0 && (style & DWT.EMBEDDED) !is 0) { + int hwndChild = OS.GetWindow (handle, OS.GW_CHILD); + if (hwndChild !is 0) { + int threadId = OS.GetWindowThreadProcessId (hwndChild, null); + if (threadId !is OS.GetCurrentThreadId ()) { + OS.ShowWindow (hwndChild, OS.SW_HIDE); + OS.SetParent (hwndChild, 0); + } + } + } + layout = null; + tabList = null; + lpwp = null; +} + +void removeControl (Control control) { + fixTabList (control); + resizeChildren (); +} + +void resizeChildren () { + if (lpwp is null) return; + do { + WINDOWPOS [] currentLpwp = lpwp; + lpwp = null; + if (!resizeChildren (true, currentLpwp)) { + resizeChildren (false, currentLpwp); + } + } while (lpwp !is null); +} + +bool resizeChildren (bool defer, WINDOWPOS [] pwp) { + if (pwp is null) return true; + int hdwp = 0; + if (defer) { + hdwp = OS.BeginDeferWindowPos (pwp.length); + if (hdwp is 0) return false; + } + for (int i=0; i<pwp.length; i++) { + WINDOWPOS wp = pwp [i]; + if (wp !is null) { + /* + * This code is intentionally commented. All widgets that + * are created by DWT have WS_CLIPSIBLINGS to ensure that + * application code does not draw outside of the control. + */ +// int count = parent.getChildrenCount (); +// if (count > 1) { +// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); +// if ((bits & OS.WS_CLIPSIBLINGS) is 0) wp.flags |= OS.SWP_NOCOPYBITS; +// } + if (defer) { + hdwp = DeferWindowPos (hdwp, wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags); + if (hdwp is 0) return false; + } else { + SetWindowPos (wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags); + } + } + } + if (defer) return OS.EndDeferWindowPos (hdwp); + return true; +} + +void resizeEmbeddedHandle(int embeddedHandle, int width, int height) { + if (embeddedHandle is 0) return; + int [] processID = new int [1]; + int threadId = OS.GetWindowThreadProcessId (embeddedHandle, processID); + if (threadId !is OS.GetCurrentThreadId ()) { + if (processID [0] is OS.GetCurrentProcessId ()) { + if (display.msgHook is 0) { + if (!OS.IsWinCE) { + display.getMsgCallback = new Callback (display, "getMsgProc", 3); + display.getMsgProc = display.getMsgCallback.getAddress (); + if (display.getMsgProc is 0) error (DWT.ERROR_NO_MORE_CALLBACKS); + display.msgHook = OS.SetWindowsHookEx (OS.WH_GETMESSAGE, display.getMsgProc, OS.GetLibraryHandle(), threadId); + OS.PostThreadMessage (threadId, OS.WM_NULL, 0, 0); + } + } + } + int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE | OS.SWP_ASYNCWINDOWPOS; + OS.SetWindowPos (embeddedHandle, 0, 0, 0, width, height, flags); + } +} + +void sendResize () { + setResizeChildren (false); + sendEvent (DWT.Resize); + if (isDisposed ()) return; + if (layout !is null) { + markLayout (false, false); + updateLayout (false, false); + } + setResizeChildren (true); +} + +/** + * Sets the background drawing mode to the argument which should + * be one of the following constants defined in class <code>DWT</code>: + * <code>INHERIT_NONE</code>, <code>INHERIT_DEFAULT</code>, + * <code>INHERIT_FORCE</code>. + * + * @param mode the new background mode + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT + * + * @since 3.2 + */ +public void setBackgroundMode (int mode) { + checkWidget (); + backgroundMode = mode; + Control [] children = _getChildren (); + for (int i = 0; i < children.length; i++) { + children [i].updateBackgroundMode (); + } +} + +bool setFixedFocus () { + checkWidget (); + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (child.setRadioFocus ()) return true; + } + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (child.setFixedFocus ()) return true; + } + return super.setFixedFocus (); +} + +public bool setFocus () { + checkWidget (); + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (child.setRadioFocus ()) return true; + } + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (child.setFocus ()) return true; + } + return super.setFocus (); +} + +/** + * Sets the layout which is associated with the receiver to be + * the argument which may be null. + * + * @param layout the receiver's new layout or null + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLayout (Layout layout) { + checkWidget (); + this.layout = layout; +} + +/** + * If the argument is <code>true</code>, causes subsequent layout + * operations in the receiver or any of its children to be ignored. + * No layout of any kind can occur in the receiver or any of its + * children until the flag is set to false. + * Layout operations that occurred while the flag was + * <code>true</code> are remembered and when the flag is set to + * <code>false</code>, the layout operations are performed in an + * optimized manner. Nested calls to this method are stacked. + * + * @param defer the new defer state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #layout(bool) + * @see #layout(Control[]) + * + * @since 3.1 + */ +public void setLayoutDeferred (bool defer) { + if (!defer) { + if (--layoutCount is 0) { + if ((state & LAYOUT_CHILD) !is 0 || (state & LAYOUT_NEEDED) !is 0) { + updateLayout (true, true); + } + } + } else { + layoutCount++; + } +} +/** + * Sets the tabbing order for the specified controls to + * match the order that they occur in the argument list. + * + * @param tabList the ordered list of controls representing the tab order or null + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if a widget in the tabList is null or has been disposed</li> + * <li>ERROR_INVALID_PARENT - if widget in the tabList is not in the same widget tree</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setTabList (Control [] tabList) { + checkWidget (); + if (tabList !is null) { + for (int i=0; i<tabList.length; i++) { + Control control = tabList [i]; + if (control is null) error (DWT.ERROR_INVALID_ARGUMENT); + if (control.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + if (control.parent !is this) error (DWT.ERROR_INVALID_PARENT); + } + Control [] newList = new Control [tabList.length]; + System.arraycopy (tabList, 0, newList, 0, tabList.length); + tabList = newList; + } + this.tabList = tabList; +} + +void setResizeChildren (bool resize) { + if (resize) { + resizeChildren (); + } else { + int count = getChildrenCount (); + if (count > 1 && lpwp is null) { + lpwp = new WINDOWPOS [count]; + } + } +} + +bool setTabGroupFocus () { + if (isTabItem ()) return setTabItemFocus (); + bool takeFocus = (style & DWT.NO_FOCUS) is 0; + if ((state & CANVAS) !is 0) { + takeFocus = hooksKeys (); + if ((style & DWT.EMBEDDED) !is 0) takeFocus = true; + } + if (takeFocus && setTabItemFocus ()) return true; + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (child.isTabItem () && child.setRadioFocus ()) return true; + } + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (child.isTabItem () && child.setTabItemFocus ()) return true; + } + return false; +} + +String toolTipText (NMTTDISPINFO hdr) { + Shell shell = getShell (); + if ((hdr.uFlags & OS.TTF_IDISHWND) is 0) { + String string = null; + ToolTip toolTip = shell.findToolTip (hdr.idFrom); + if (toolTip !is null) { + string = toolTip.message; + if (string is null || string.length () is 0) string = " "; + } + return string; + } + shell.setToolTipTitle (hdr.hwndFrom, null, 0); + OS.SendMessage (hdr.hwndFrom, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); + Control control = display.getControl (hdr.idFrom); + return control !is null ? control.toolTipText : null; +} + +bool translateMnemonic (Event event, Control control) { + if (super.translateMnemonic (event, control)) return true; + if (control !is null) { + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + Control child = children [i]; + if (child.translateMnemonic (event, control)) return true; + } + } + return false; +} + +bool translateTraversal (MSG msg) { + if ((state & CANVAS) !is 0 ) { + if ((style & DWT.EMBEDDED) !is 0) return false; + switch (msg.wParam) { + case OS.VK_UP: + case OS.VK_LEFT: + case OS.VK_DOWN: + case OS.VK_RIGHT: + case OS.VK_PRIOR: + case OS.VK_NEXT: + OS.SendMessage (msg.hwnd, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); + break; + } + } + return super.translateTraversal (msg); +} + +void updateBackgroundColor () { + super.updateBackgroundColor (); + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + if ((children [i].state & PARENT_BACKGROUND) !is 0) { + children [i].updateBackgroundColor (); + } + } +} + +void updateBackgroundImage () { + super.updateBackgroundImage (); + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + if ((children [i].state & PARENT_BACKGROUND) !is 0) { + children [i].updateBackgroundImage (); + } + } +} + +void updateBackgroundMode () { + super.updateBackgroundMode (); + Control [] children = _getChildren (); + for (int i = 0; i < children.length; i++) { + children [i].updateBackgroundMode (); + } +} + +void updateFont (Font oldFont, Font newFont) { + super.updateFont (oldFont, newFont); + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + Control control = children [i]; + if (!control.isDisposed ()) { + control.updateFont (oldFont, newFont); + } + } +} + +void updateLayout (bool resize, bool all) { + Composite parent = findDeferredControl (); + if (parent !is null) { + parent.state |= LAYOUT_CHILD; + return; + } + if ((state & LAYOUT_NEEDED) !is 0) { + bool changed = (state & LAYOUT_CHANGED) !is 0; + state &= ~(LAYOUT_NEEDED | LAYOUT_CHANGED); + if (resize) setResizeChildren (false); + layout.layout (this, changed); + if (resize) setResizeChildren (true); + } + if (all) { + state &= ~LAYOUT_CHILD; + Control [] children = _getChildren (); + for (int i=0; i<children.length; i++) { + children [i].updateLayout (resize, all); + } + } +} + +int widgetStyle () { + /* Force clipping of children by setting WS_CLIPCHILDREN */ + return super.widgetStyle () | OS.WS_CLIPCHILDREN; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + if (result !is null) return result; + if ((state & CANVAS) !is 0) { + /* Return zero to indicate that the background was not erased */ + if ((style & DWT.NO_BACKGROUND) !is 0) return LRESULT.ZERO; + } + return result; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + LRESULT result = super.WM_GETDLGCODE (wParam, lParam); + if (result !is null) return result; + if ((state & CANVAS) !is 0) { + int flags = 0; + if (hooksKeys ()) { + flags |= OS.DLGC_WANTALLKEYS | OS.DLGC_WANTARROWS | OS.DLGC_WANTTAB; + } + if ((style & DWT.NO_FOCUS) !is 0) flags |= OS.DLGC_STATIC; + if (OS.GetWindow (handle, OS.GW_CHILD) !is 0) flags |= OS.DLGC_STATIC; + if (flags !is 0) return new LRESULT (flags); + } + return result; +} + +LRESULT WM_GETFONT (int wParam, int lParam) { + LRESULT result = super.WM_GETFONT (wParam, lParam); + if (result !is null) return result; + int code = callWindowProc (handle, OS.WM_GETFONT, wParam, lParam); + if (code !is 0) return new LRESULT (code); + if (font is 0) font = defaultFont (); + return new LRESULT (font); +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); + if (result is LRESULT.ZERO) return result; + + /* Set focus for a canvas with no children */ + if ((state & CANVAS) !is 0) { + if ((style & DWT.NO_FOCUS) is 0 && hooksKeys ()) { + if (OS.GetWindow (handle, OS.GW_CHILD) is 0) setFocus (); + } + } + return result; +} + +LRESULT WM_NCPAINT (int wParam, int lParam) { + LRESULT result = super.WM_NCPAINT (wParam, lParam); + if (result !is null) return result; + if ((state & CANVAS) !is 0) { + result = wmNCPaint (handle, wParam, lParam); + } + return result; +} + +LRESULT WM_PARENTNOTIFY (int wParam, int lParam) { + if ((state & CANVAS) !is 0 && (style & DWT.EMBEDDED) !is 0) { + if ((wParam & 0xFFFF) is OS.WM_CREATE) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + resizeEmbeddedHandle (lParam, rect.right - rect.left, rect.bottom - rect.top); + } + } + return super.WM_PARENTNOTIFY (wParam, lParam); +} + +LRESULT WM_PAINT (int wParam, int lParam) { + if ((state & CANVAS) is 0 || (state & FOREIGN_HANDLE) !is 0) { + return super.WM_PAINT (wParam, lParam); + } + + /* Set the clipping bits */ + int oldBits = 0, newBits = 0; + if (!OS.IsWinCE) { + oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE); + newBits = oldBits | OS.WS_CLIPSIBLINGS | OS.WS_CLIPCHILDREN; + if (newBits !is oldBits) OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + } + + /* Paint the control and the background */ + PAINTSTRUCT ps = new PAINTSTRUCT (); + if (hooks (DWT.Paint)) { + + /* Use the buffered paint when possible */ + bool bufferedPaint = false; + if ((style & DWT.DOUBLE_BUFFERED) !is 0) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + if ((style & (DWT.NO_MERGE_PAINTS | DWT.RIGHT_TO_LEFT)) is 0) { + bufferedPaint = true; + } + } + } + if (bufferedPaint) { + int hDC = OS.BeginPaint (handle, ps); + int width = ps.right - ps.left; + int height = ps.bottom - ps.top; + if (width !is 0 && height !is 0) { + int [] phdc = new int [1]; + int flags = OS.BPBF_COMPATIBLEBITMAP; + RECT prcTarget = new RECT (); + OS.SetRect (prcTarget, ps.left, ps.top, ps.right, ps.bottom); + int hBufferedPaint = OS.BeginBufferedPaint (hDC, prcTarget, flags, null, phdc); + GCData data = new GCData (); + if ((OS.GetLayout (hDC) & OS.LAYOUT_RTL) !is 0) { + data.style = DWT.RIGHT_TO_LEFT | DWT.MIRRORED; + } else { + data.style = DWT.LEFT_TO_RIGHT; + } + data.device = display; + data.foreground = getForegroundPixel (); + Control control = findBackgroundControl (); + if (control is null) control = this; + data.background = control.getBackgroundPixel (); + data.hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + data.uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((style & DWT.NO_BACKGROUND) !is 0) { + /* This code is intentionally commented because it may be slow to copy bits from the screen */ + //paintGC.copyArea (image, ps.left, ps.top); + } else { + RECT rect = new RECT (); + OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); + drawBackground (phdc [0], rect); + } + GC gc = GC.win32_new (phdc [0], data); + Event event = new Event (); + event.gc = gc; + event.x = ps.left; + event.y = ps.top; + event.width = width; + event.height = height; + sendEvent (DWT.Paint, event); + gc.dispose (); + OS.EndBufferedPaint (hBufferedPaint, true); + } + OS.EndPaint (handle, ps); + } else { + + /* Create the paint GC */ + GCData data = new GCData (); + data.ps = ps; + data.hwnd = handle; + GC gc = GC.win32_new (this, data); + + /* Get the system region for the paint HDC */ + int sysRgn = 0; + if ((style & (DWT.NO_MERGE_PAINTS | DWT.DOUBLE_BUFFERED)) !is 0) { + sysRgn = OS.CreateRectRgn (0, 0, 0, 0); + if (OS.GetRandomRgn (gc.handle, sysRgn, OS.SYSRGN) is 1) { + if (OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + if ((OS.GetLayout (gc.handle) & OS.LAYOUT_RTL) !is 0) { + int nBytes = OS.GetRegionData (sysRgn, 0, null); + int [] lpRgnData = new int [nBytes / 4]; + OS.GetRegionData (sysRgn, nBytes, lpRgnData); + int newSysRgn = OS.ExtCreateRegion (new float [] {-1, 0, 0, 1, 0, 0}, nBytes, lpRgnData); + OS.DeleteObject (sysRgn); + sysRgn = newSysRgn; + } + } + if (OS.IsWinNT) { + POINT pt = new POINT(); + OS.MapWindowPoints (0, handle, pt, 1); + OS.OffsetRgn (sysRgn, pt.x, pt.y); + } + } + } + + /* Send the paint event */ + int width = ps.right - ps.left; + int height = ps.bottom - ps.top; + if (width !is 0 && height !is 0) { + GC paintGC = null; + Image image = null; + if ((style & DWT.DOUBLE_BUFFERED) !is 0) { + image = new Image (display, width, height); + paintGC = gc; + gc = new GC (image, paintGC.getStyle() & DWT.RIGHT_TO_LEFT); + GCData gcData = gc.getGCData (); + gcData.uiState = data.uiState; + gc.setForeground (getForeground ()); + gc.setBackground (getBackground ()); + gc.setFont (getFont ()); + OS.OffsetRgn (sysRgn, -ps.left, -ps.top); + OS.SelectClipRgn (gc.handle, sysRgn); + OS.OffsetRgn (sysRgn, ps.left, ps.top); + OS.SetMetaRgn (gc.handle); + OS.SetWindowOrgEx (gc.handle, ps.left, ps.top, null); + OS.SetBrushOrgEx (gc.handle, ps.left, ps.top, null); + if ((style & DWT.NO_BACKGROUND) !is 0) { + /* This code is intentionally commented because it may be slow to copy bits from the screen */ + //paintGC.copyArea (image, ps.left, ps.top); + } else { + RECT rect = new RECT (); + OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); + drawBackground (gc.handle, rect); + } + } + Event event = new Event (); + event.gc = gc; + RECT rect = null; + if ((style & DWT.NO_MERGE_PAINTS) !is 0 && OS.GetRgnBox (sysRgn, rect = new RECT ()) is OS.COMPLEXREGION) { + int nBytes = OS.GetRegionData (sysRgn, 0, null); + int [] lpRgnData = new int [nBytes / 4]; + OS.GetRegionData (sysRgn, nBytes, lpRgnData); + int count = lpRgnData [2]; + for (int i=0; i<count; i++) { + int offset = 8 + (i << 2); + OS.SetRect (rect, lpRgnData [offset], lpRgnData [offset + 1], lpRgnData [offset + 2], lpRgnData [offset + 3]); + if ((style & (DWT.DOUBLE_BUFFERED | DWT.NO_BACKGROUND)) is 0) { + drawBackground (gc.handle, rect); + } + event.x = rect.left; + event.y = rect.top; + event.width = rect.right - rect.left; + event.height = rect.bottom - rect.top; + event.count = count - 1 - i; + sendEvent (DWT.Paint, event); + } + } else { + if ((style & (DWT.DOUBLE_BUFFERED | DWT.NO_BACKGROUND)) is 0) { + if (rect is null) rect = new RECT (); + OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); + drawBackground (gc.handle, rect); + } + event.x = ps.left; + event.y = ps.top; + event.width = width; + event.height = height; + sendEvent (DWT.Paint, event); + } + // widget could be disposed at this point + event.gc = null; + if ((style & DWT.DOUBLE_BUFFERED) !is 0) { + gc.dispose(); + if (!isDisposed ()) paintGC.drawImage (image, ps.left, ps.top); + image.dispose (); + gc = paintGC; + } + } + if (sysRgn !is 0) OS.DeleteObject (sysRgn); + + /* Dispose the paint GC */ + gc.dispose (); + } + } else { + int hDC = OS.BeginPaint (handle, ps); + if ((style & DWT.NO_BACKGROUND) is 0) { + RECT rect = new RECT (); + OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); + drawBackground (hDC, rect); + } + OS.EndPaint (handle, ps); + } + + /* Restore the clipping bits */ + if (!OS.IsWinCE && !isDisposed ()) { + if (newBits !is oldBits) { + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the paint + * event. If this happens, don't attempt to restore + * the style. + */ + if (!isDisposed ()) { + OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits); + } + } + } + return LRESULT.ZERO; +} + +LRESULT WM_PRINTCLIENT (int wParam, int lParam) { + LRESULT result = super.WM_PRINTCLIENT (wParam, lParam); + if (result !is null) return result; + if ((state & CANVAS) !is 0) { + forceResize (); + int nSavedDC = OS.SaveDC (wParam); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + if ((style & DWT.NO_BACKGROUND) is 0) { + drawBackground (wParam, rect); + } + if (hooks (DWT.Paint) || filters (DWT.Paint)) { + GCData data = new GCData (); + data.device = display; + data.foreground = getForegroundPixel (); + Control control = findBackgroundControl (); + if (control is null) control = this; + data.background = control.getBackgroundPixel (); + data.hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + data.uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + GC gc = GC.win32_new (wParam, data); + Event event = new Event (); + event.gc = gc; + event.x = rect.left; + event.y = rect.top; + event.width = rect.right - rect.left; + event.height = rect.bottom - rect.top; + sendEvent (DWT.Paint, event); + event.gc = null; + gc.dispose (); + } + OS.RestoreDC (wParam, nSavedDC); + } + return result; +} + +LRESULT WM_SETFONT (int wParam, int lParam) { + if (lParam !is 0) OS.InvalidateRect (handle, null, true); + return super.WM_SETFONT (font = wParam, lParam); +} + +LRESULT WM_SIZE (int wParam, int lParam) { + + /* Begin deferred window positioning */ + setResizeChildren (false); + + /* Resize and Layout */ + LRESULT result = super.WM_SIZE (wParam, lParam); + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the resize + * event. If this happens, end the processing of the + * Windows message by returning the result of the + * WM_SIZE message. + */ + if (isDisposed ()) return result; + if (layout !is null) { + markLayout (false, false); + updateLayout (false, false); + } + + /* End deferred window positioning */ + setResizeChildren (true); + + /* Damage the widget to cause a repaint */ + if (OS.IsWindowVisible (handle)) { + if ((state & CANVAS) !is 0) { + if ((style & DWT.NO_REDRAW_RESIZE) is 0) { + if (hooks (DWT.Paint)) { + OS.InvalidateRect (handle, null, true); + } + } + } + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (findThemeControl () !is null) redrawChildren (); + } + } + + /* Resize the embedded window */ + if ((state & CANVAS) !is 0 && (style & DWT.EMBEDDED) !is 0) { + resizeEmbeddedHandle (OS.GetWindow (handle, OS.GW_CHILD), lParam & 0xFFFF, lParam >> 16); + } + return result; +} + +LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) { + LRESULT result = super.WM_SYSCOLORCHANGE (wParam, lParam); + if (result !is null) return result; + int hwndChild = OS.GetWindow (handle, OS.GW_CHILD); + while (hwndChild !is 0) { + OS.SendMessage (hwndChild, OS.WM_SYSCOLORCHANGE, 0, 0); + hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT); + } + return result; +} + +LRESULT WM_SYSCOMMAND (int wParam, int lParam) { + LRESULT result = super.WM_SYSCOMMAND (wParam, lParam); + if (result !is null) return result; + + /* + * Check to see if the command is a system command or + * a user menu item that was added to the system menu. + */ + if ((wParam & 0xF000) is 0) return result; + + /* + * Bug in Windows. When a vertical or horizontal scroll bar is + * hidden or shown while the opposite scroll bar is being scrolled + * by the user (with WM_HSCROLL code SB_LINEDOWN), the scroll bar + * does not redraw properly. The fix is to detect this case and + * redraw the non-client area. + */ + if (!OS.IsWinCE) { + int cmd = wParam & 0xFFF0; + switch (cmd) { + case OS.SC_HSCROLL: + case OS.SC_VSCROLL: + bool showHBar = horizontalBar !is null && horizontalBar.getVisible (); + bool showVBar = verticalBar !is null && verticalBar.getVisible (); + int code = callWindowProc (handle, OS.WM_SYSCOMMAND, wParam, lParam); + if ((showHBar !is (horizontalBar !is null && horizontalBar.getVisible ())) || + (showVBar !is (verticalBar !is null && verticalBar.getVisible ()))) { + int flags = OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_UPDATENOW; + OS.RedrawWindow (handle, null, 0, flags); + } + if (code is 0) return LRESULT.ZERO; + return new LRESULT (code); + } + } + /* Return the result */ + return result; +} + +LRESULT WM_UPDATEUISTATE (int wParam, int lParam) { + LRESULT result = super.WM_UPDATEUISTATE (wParam, lParam); + if (result !is null) return result; + if ((state & CANVAS) !is 0) OS.InvalidateRect (handle, null, false); + return result; +} + +LRESULT wmNCPaint (int hwnd, int wParam, int lParam) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + int bits1 = OS.GetWindowLong (hwnd, OS.GWL_EXSTYLE); + if ((bits1 & OS.WS_EX_CLIENTEDGE) !is 0) { + int code = 0; + int bits2 = OS.GetWindowLong (hwnd, OS.GWL_STYLE); + if ((bits2 & (OS.WS_HSCROLL | OS.WS_VSCROLL)) !is 0) { + code = callWindowProc (hwnd, OS.WM_NCPAINT, wParam, lParam); + } + int hDC = OS.GetWindowDC (hwnd); + RECT rect = new RECT (); + OS.GetWindowRect (hwnd, rect); + rect.right -= rect.left; + rect.bottom -= rect.top; + rect.left = rect.top = 0; + int border = OS.GetSystemMetrics (OS.SM_CXEDGE); + OS.ExcludeClipRect (hDC, border, border, rect.right - border, rect.bottom - border); + OS.DrawThemeBackground (display.hEditTheme (), hDC, OS.EP_EDITTEXT, OS.ETS_NORMAL, rect, null); + OS.ReleaseDC (hwnd, hDC); + return new LRESULT (code); + } + } + return null; +} + +LRESULT wmNotify (NMHDR hdr, int wParam, int lParam) { + if (!OS.IsWinCE) { + switch (hdr.code) { + /* + * Feature in Windows. When the tool tip control is + * created, the parent of the tool tip is the shell. + * If SetParent () is used to reparent the tool bar + * into a new shell, the tool tip is not reparented + * and pops up underneath the new shell. The fix is + * to make sure the tool tip is a topmost window. + */ + case OS.TTN_SHOW: + case OS.TTN_POP: { + /* + * Bug in Windows 98 and NT. Setting the tool tip to be the + * top most window using HWND_TOPMOST can result in a parent + * dialog shell being moved behind its parent if the dialog + * has a sibling that is currently on top. The fix is to + * lock the z-order of the active window. + * + * Feature in Windows. Using SetWindowPos() with HWND_NOTOPMOST + * to clear the topmost state of a window whose parent is already + * topmost clears the topmost state of the parent. The fix is to + * check if the parent is already on top and neither set or clear + * the topmost status of the tool tip. + */ + int hwndParent = hdr.hwndFrom; + do { + hwndParent = OS.GetParent (hwndParent); + if (hwndParent is 0) break; + int bits = OS.GetWindowLong (hwndParent, OS.GWL_EXSTYLE); + if ((bits & OS.WS_EX_TOPMOST) !is 0) break; + } while (true); + if (hwndParent !is 0) break; + display.lockActiveWindow = true; + int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOSIZE; + int hwndInsertAfter = hdr.code is OS.TTN_SHOW ? OS.HWND_TOPMOST : OS.HWND_NOTOPMOST; + SetWindowPos (hdr.hwndFrom, hwndInsertAfter, 0, 0, 0, 0, flags); + display.lockActiveWindow = false; + break; + } + /* + * Bug in Windows 98. For some reason, the tool bar control + * sends both TTN_GETDISPINFOW and TTN_GETDISPINFOA to get + * the tool tip text and the tab folder control sends only + * TTN_GETDISPINFOW. The fix is to handle only TTN_GETDISPINFOW, + * even though it should never be sent on Windows 98. + * + * NOTE: Because the size of NMTTDISPINFO differs between + * Windows 98 and NT, guard against the case where the wrong + * kind of message occurs by inlining the memory moves and + * the UNICODE conversion code. + */ + case OS.TTN_GETDISPINFOA: + case OS.TTN_GETDISPINFOW: { + NMTTDISPINFO lpnmtdi; + if (hdr.code is OS.TTN_GETDISPINFOA) { + lpnmtdi = new NMTTDISPINFOA (); + OS.MoveMemory ((NMTTDISPINFOA)lpnmtdi, lParam, NMTTDISPINFOA.sizeof); + } else { + lpnmtdi = new NMTTDISPINFOW (); + OS.MoveMemory ((NMTTDISPINFOW)lpnmtdi, lParam, NMTTDISPINFOW.sizeof); + } + String string = toolTipText (lpnmtdi); + if (string !is null) { + Shell shell = getShell (); + string = Display.withCrLf (string); + int length = string.length (); + char [] chars = new char [length + 1]; + string.getChars (0, length, chars, 0); + + /* + * Ensure that the orientation of the tool tip matches + * the orientation of the control. + */ + int hwnd = hdr.idFrom; + if (hwnd !is 0 && ((lpnmtdi.uFlags & OS.TTF_IDISHWND) !is 0)) { + Control control = display.getControl (hwnd); + if (control !is null) { + if ((control.getStyle () & DWT.RIGHT_TO_LEFT) !is 0) { + lpnmtdi.uFlags |= OS.TTF_RTLREADING; + } else { + lpnmtdi.uFlags &= ~OS.TTF_RTLREADING; + } + } + } + + if (hdr.code is OS.TTN_GETDISPINFOA) { + byte [] bytes = new byte [chars.length * 2]; + OS.WideCharToMultiByte (getCodePage (), 0, chars, chars.length, bytes, bytes.length, null, null); + shell.setToolTipText (lpnmtdi, bytes); + OS.MoveMemory (lParam, (NMTTDISPINFOA)lpnmtdi, NMTTDISPINFOA.sizeof); + } else { + shell.setToolTipText (lpnmtdi, chars); + OS.MoveMemory (lParam, (NMTTDISPINFOW)lpnmtdi, NMTTDISPINFOW.sizeof); + } + return LRESULT.ZERO; + } + break; + } + } + } + return super.wmNotify (hdr, wParam, lParam); +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Control.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,4639 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Control; + +import dwt.widgets.Widget; +import dwt.widgets.Composite; +import dwt.graphics.Drawable; +import dwt.graphics.Rectangle; +import dwt.graphics.Point; +import dwt.graphics.GCData; +import dwt.internal.win32.OS; + +class Control : Widget, Drawable { + this(); + this( Widget, int ); +public HDC internal_new_GC (GCData data) ; +public void internal_dispose_GC (HDC hDC, GCData data) ; +public Point computeSize (int wHint, int hHint) ; +public Point computeSize (int wHint, int hHint, bool changed) ; +public Composite getParent () ; +public Object getLayoutData () ; +public int getBorderWidth () ; +public void setLayoutData (Object layoutData) ; +public void setBounds (int x, int y, int width, int height) ; +void setBounds (int x, int y, int width, int height, int flags) ; +void setBounds (int x, int y, int width, int height, int flags, bool defer) ; +public void setBounds (Rectangle rect) ; +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.accessibility.Accessible; +import dwt.events.ControlListener; +import dwt.events.DragDetectListener; +import dwt.events.FocusListener; +import dwt.events.HelpListener; +import dwt.events.KeyListener; +import dwt.events.MenuDetectListener; +import dwt.events.MouseEvent; +import dwt.events.MouseListener; +import dwt.events.MouseMoveListener; +import dwt.events.MouseTrackListener; +import dwt.events.MouseWheelListener; +import dwt.events.PaintListener; +import dwt.events.TraverseListener; +import dwt.graphics.Color; +import dwt.graphics.Cursor; +import dwt.graphics.Drawable; +import dwt.graphics.Font; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.CREATESTRUCT; +import dwt.internal.win32.DRAWITEMSTRUCT; +import dwt.internal.win32.HELPINFO; +import dwt.internal.win32.LOGFONT; +import dwt.internal.win32.LOGFONTA; +import dwt.internal.win32.LOGFONTW; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MEASUREITEMSTRUCT; +import dwt.internal.win32.MENUITEMINFO; +import dwt.internal.win32.MONITORINFO; +import dwt.internal.win32.MSG; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WINDOWPOS; + +/** + * Control is the abstract superclass of all windowed user interface classes. + * <p> + * <dl> + * <dt><b>Styles:</b> + * <dd>BORDER</dd> + * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd> + * <dt><b>Events:</b> + * <dd>DragDetect, FocusIn, FocusOut, Help, KeyDown, KeyUp, MenuDetect, MouseDoubleClick, MouseDown, MouseEnter, + * MouseExit, MouseHover, MouseUp, MouseMove, Move, Paint, Resize, Traverse</dd> + * </dl> + * </p><p> + * Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified. + * </p><p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ + +public abstract class Control extends Widget implements Drawable { + /** + * the handle to the OS resource + * (Warning: This field is platform dependent) + * <p> + * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It is not available on all + * platforms and should never be accessed from application code. + * </p> + */ + public int handle; + Composite parent; + Cursor cursor; + Menu menu; + String toolTipText; + Object layoutData; + Accessible accessible; + Image backgroundImage; + int drawCount, foreground, background; + +/** + * Prevents uninitialized instances from being created outside the package. + */ +Control () { +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#BORDER + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Control (Composite parent, int style) { + super (parent, style); + this.parent = parent; + createWidget (); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is moved or resized, by sending + * it one of the messages defined in the <code>ControlListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ControlListener + * @see #removeControlListener + */ +public void addControlListener(ControlListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Resize,typedListener); + addListener (DWT.Move,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when a drag gesture occurs, by sending it + * one of the messages defined in the <code>DragDetectListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DragDetectListener + * @see #removeDragDetectListener + * + * @since 3.3 + */ +public void addDragDetectListener (DragDetectListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.DragDetect,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control gains or loses focus, by sending + * it one of the messages defined in the <code>FocusListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see FocusListener + * @see #removeFocusListener + */ +public void addFocusListener (FocusListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.FocusIn,typedListener); + addListener (DWT.FocusOut,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when help events are generated for the control, + * by sending it one of the messages defined in the + * <code>HelpListener</code> interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see HelpListener + * @see #removeHelpListener + */ +public void addHelpListener (HelpListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Help, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when keys are pressed and released on the system keyboard, by sending + * it one of the messages defined in the <code>KeyListener</code> + * interface. + * <p> + * When a key listener is added to a control, the control + * will take part in widget traversal. By default, all + * traversal keys (such as the tab key and so on) are + * delivered to the control. In order for a control to take + * part in traversal, it should listen for traversal events. + * Otherwise, the user can traverse into a control but not + * out. Note that native controls such as table and tree + * implement key traversal in the operating system. It is + * not necessary to add traversal listeners for these controls, + * unless you want to override the default traversal. + * </p> + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see KeyListener + * @see #removeKeyListener + */ +public void addKeyListener (KeyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.KeyUp,typedListener); + addListener (DWT.KeyDown,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the platform-specific context menu trigger + * has occurred, by sending it one of the messages defined in + * the <code>MenuDetectListener</code> interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MenuDetectListener + * @see #removeMenuDetectListener + * + * @since 3.3 + */ +public void addMenuDetectListener (MenuDetectListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.MenuDetect, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when mouse buttons are pressed and released, by sending + * it one of the messages defined in the <code>MouseListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MouseListener + * @see #removeMouseListener + */ +public void addMouseListener (MouseListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.MouseDown,typedListener); + addListener (DWT.MouseUp,typedListener); + addListener (DWT.MouseDoubleClick,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the mouse passes or hovers over controls, by sending + * it one of the messages defined in the <code>MouseTrackListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MouseTrackListener + * @see #removeMouseTrackListener + */ +public void addMouseTrackListener (MouseTrackListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.MouseEnter,typedListener); + addListener (DWT.MouseExit,typedListener); + addListener (DWT.MouseHover,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the mouse moves, by sending it one of the + * messages defined in the <code>MouseMoveListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MouseMoveListener + * @see #removeMouseMoveListener + */ +public void addMouseMoveListener (MouseMoveListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.MouseMove,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the mouse wheel is scrolled, by sending + * it one of the messages defined in the + * <code>MouseWheelListener</code> interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MouseWheelListener + * @see #removeMouseWheelListener + * + * @since 3.3 + */ +public void addMouseWheelListener (MouseWheelListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.MouseWheel, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver needs to be painted, by sending it + * one of the messages defined in the <code>PaintListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see PaintListener + * @see #removePaintListener + */ +public void addPaintListener (PaintListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Paint,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when traversal events occur, by sending it + * one of the messages defined in the <code>TraverseListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see TraverseListener + * @see #removeTraverseListener + */ +public void addTraverseListener (TraverseListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Traverse,typedListener); +} + +int borderHandle () { + return handle; +} + +void checkBackground () { + Shell shell = getShell (); + if (this is shell) return; + state &= ~PARENT_BACKGROUND; + Composite composite = parent; + do { + int mode = composite.backgroundMode; + if (mode !is 0) { + if (mode is DWT.INHERIT_DEFAULT) { + Control control = this; + do { + if ((control.state & THEME_BACKGROUND) is 0) { + return; + } + control = control.parent; + } while (control !is composite); + } + state |= PARENT_BACKGROUND; + return; + } + if (composite is shell) break; + composite = composite.parent; + } while (true); +} + +void checkBorder () { + if (getBorderWidth () is 0) style &= ~DWT.BORDER; +} + +void checkBuffered () { + style &= ~DWT.DOUBLE_BUFFERED; +} + +bool checkHandle (int hwnd) { + return hwnd is handle; +} + +void checkMirrored () { + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + if ((bits & OS.WS_EX_LAYOUTRTL) !is 0) style |= DWT.MIRRORED; + } +} + +/** + * Returns the preferred size of the receiver. + * <p> + * The <em>preferred size</em> of a control is the size that it would + * best be displayed at. The width hint and height hint arguments + * allow the caller to ask a control questions such as "Given a particular + * width, how high does the control need to be to show all of the contents?" + * To indicate that the caller does not wish to constrain a particular + * dimension, the constant <code>DWT.DEFAULT</code> is passed for the hint. + * </p> + * + * @param wHint the width hint (can be <code>DWT.DEFAULT</code>) + * @param hHint the height hint (can be <code>DWT.DEFAULT</code>) + * @return the preferred size of the control + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Layout + * @see #getBorderWidth + * @see #getBounds + * @see #getSize + * @see #pack(bool) + * @see "computeTrim, getClientArea for controls that implement them" + */ +public Point computeSize (int wHint, int hHint) { + return computeSize (wHint, hHint, true); +} + +/** + * Returns the preferred size of the receiver. + * <p> + * The <em>preferred size</em> of a control is the size that it would + * best be displayed at. The width hint and height hint arguments + * allow the caller to ask a control questions such as "Given a particular + * width, how high does the control need to be to show all of the contents?" + * To indicate that the caller does not wish to constrain a particular + * dimension, the constant <code>DWT.DEFAULT</code> is passed for the hint. + * </p><p> + * If the changed flag is <code>true</code>, it indicates that the receiver's + * <em>contents</em> have changed, therefore any caches that a layout manager + * containing the control may have been keeping need to be flushed. When the + * control is resized, the changed flag will be <code>false</code>, so layout + * manager caches can be retained. + * </p> + * + * @param wHint the width hint (can be <code>DWT.DEFAULT</code>) + * @param hHint the height hint (can be <code>DWT.DEFAULT</code>) + * @param changed <code>true</code> if the control's contents have changed, and <code>false</code> otherwise + * @return the preferred size of the control. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Layout + * @see #getBorderWidth + * @see #getBounds + * @see #getSize + * @see #pack(bool) + * @see "computeTrim, getClientArea for controls that implement them" + */ +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = DEFAULT_WIDTH; + int height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + int border = getBorderWidth (); + width += border * 2; + height += border * 2; + return new Point (width, height); +} + +Control computeTabGroup () { + if (isTabGroup ()) return this; + return parent.computeTabGroup (); +} + +Control computeTabRoot () { + Control [] tabList = parent._getTabList (); + if (tabList !is null) { + int index = 0; + while (index < tabList.length) { + if (tabList [index] is this) break; + index++; + } + if (index is tabList.length) { + if (isTabGroup ()) return this; + } + } + return parent.computeTabRoot (); +} + +Control [] computeTabList () { + if (isTabGroup ()) { + if (getVisible () && getEnabled ()) { + return new Control [] {this}; + } + } + return new Control [0]; +} + +void createHandle () { + int hwndParent = widgetParent (); + handle = OS.CreateWindowEx ( + widgetExtStyle (), + windowClass (), + null, + widgetStyle (), + OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0, + hwndParent, + 0, + OS.GetModuleHandle (null), + widgetCreateStruct ()); + if (handle is 0) error (DWT.ERROR_NO_HANDLES); + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.WS_CHILD) !is 0) { + OS.SetWindowLong (handle, OS.GWL_ID, handle); + } + if (OS.IsDBLocale && hwndParent !is 0) { + int hIMC = OS.ImmGetContext (hwndParent); + OS.ImmAssociateContext (handle, hIMC); + OS.ImmReleaseContext (hwndParent, hIMC); + } +} + +void createWidget () { + state |= DRAG_DETECT; + foreground = background = -1; + checkOrientation (parent); + createHandle (); + checkBackground (); + checkBuffered (); + register (); + subclass (); + setDefaultFont (); + checkMirrored (); + checkBorder (); + if ((state & PARENT_BACKGROUND) !is 0) { + setBackground (); + } +} + +int defaultBackground () { + if (OS.IsWinCE) return OS.GetSysColor (OS.COLOR_WINDOW); + return OS.GetSysColor (OS.COLOR_BTNFACE); +} + +int defaultFont () { + return display.getSystemFont ().handle; +} + +int defaultForeground () { + return OS.GetSysColor (OS.COLOR_WINDOWTEXT); +} + +void deregister () { + display.removeControl (handle); +} + +void destroyWidget () { + int hwnd = topHandle (); + releaseHandle (); + if (hwnd !is 0) { + OS.DestroyWindow (hwnd); + } +} + +/** + * Detects a drag and drop gesture. This method is used + * to detect a drag gesture when called from within a mouse + * down listener. + * + * <p>By default, a drag is detected when the gesture + * occurs anywhere within the client area of a control. + * Some controls, such as tables and trees, override this + * behavior. In addition to the operating system specific + * drag gesture, they require the mouse to be inside an + * item. Custom widget writers can use <code>setDragDetect</code> + * to disable the default detection, listen for mouse down, + * and then call <code>dragDetect()</code> from within the + * listener to conditionally detect a drag. + * </p> + * + * @param event the mouse down event + * + * @return <code>true</code> if the gesture occurred, and <code>false</code> otherwise. + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT when the event is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DragDetectListener + * @see #addDragDetectListener + * + * @see #getDragDetect + * @see #setDragDetect + * + * @since 3.3 + */ +public bool dragDetect (Event event) { + checkWidget (); + if (event is null) error (DWT.ERROR_NULL_ARGUMENT); + return dragDetect (event.button, event.count, event.stateMask, event.x, event.y); +} + +/** + * Detects a drag and drop gesture. This method is used + * to detect a drag gesture when called from within a mouse + * down listener. + * + * <p>By default, a drag is detected when the gesture + * occurs anywhere within the client area of a control. + * Some controls, such as tables and trees, override this + * behavior. In addition to the operating system specific + * drag gesture, they require the mouse to be inside an + * item. Custom widget writers can use <code>setDragDetect</code> + * to disable the default detection, listen for mouse down, + * and then call <code>dragDetect()</code> from within the + * listener to conditionally detect a drag. + * </p> + * + * @param event the mouse down event + * + * @return <code>true</code> if the gesture occurred, and <code>false</code> otherwise. + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT when the event is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DragDetectListener + * @see #addDragDetectListener + * + * @see #getDragDetect + * @see #setDragDetect + * + * @since 3.3 + */ +public bool dragDetect (MouseEvent event) { + checkWidget (); + if (event is null) error (DWT.ERROR_NULL_ARGUMENT); + return dragDetect (event.button, event.count, event.stateMask, event.x, event.y); +} + +bool dragDetect (int button, int count, int stateMask, int x, int y) { + if (button !is 1 || count !is 1) return false; + bool dragging = dragDetect (handle, x, y, false, null, null); + if (OS.GetKeyState (OS.VK_LBUTTON) < 0) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + if (!dragging) { + /* + * Feature in Windows. DragDetect() captures the mouse + * and tracks its movement until the user releases the + * left mouse button, presses the ESC key, or moves the + * mouse outside the drag rectangle. If the user moves + * the mouse outside of the drag rectangle, DragDetect() + * returns true and a drag and drop operation can be + * started. When the left mouse button is released or + * the ESC key is pressed, these events are consumed by + * DragDetect() so that application code that matches + * mouse down/up pairs or looks for the ESC key will not + * function properly. The fix is to send the missing + * events when the drag has not started. + * + * NOTE: For now, don't send a fake WM_KEYDOWN/WM_KEYUP + * events for the ESC key. This would require computing + * wParam (the key) and lParam (the repeat count, scan code, + * extended-key flag, context code, previous key-state flag, + * and transition-state flag) which is non-trivial. + */ + if (button is 1 && OS.GetKeyState (OS.VK_ESCAPE) >= 0) { + int wParam = 0; + if ((stateMask & DWT.CTRL) !is 0) wParam |= OS.MK_CONTROL; + if ((stateMask & DWT.SHIFT) !is 0) wParam |= OS.MK_SHIFT; + if ((stateMask & DWT.ALT) !is 0) wParam |= OS.MK_ALT; + if ((stateMask & DWT.BUTTON1) !is 0) wParam |= OS.MK_LBUTTON; + if ((stateMask & DWT.BUTTON2) !is 0) wParam |= OS.MK_MBUTTON; + if ((stateMask & DWT.BUTTON3) !is 0) wParam |= OS.MK_RBUTTON; + if ((stateMask & DWT.BUTTON4) !is 0) wParam |= OS.MK_XBUTTON1; + if ((stateMask & DWT.BUTTON5) !is 0) wParam |= OS.MK_XBUTTON2; + int lParam = (x & 0xFFFF) | ((y << 16) & 0xFFFF0000); + OS.SendMessage (handle, OS.WM_LBUTTONUP, wParam, lParam); + } + return false; + } + return sendDragEvent (button, stateMask, x, y); +} + +void drawBackground (int hDC) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + drawBackground (hDC, rect); +} + +void drawBackground (int hDC, RECT rect) { + drawBackground (hDC, rect, -1); +} + +void drawBackground (int hDC, RECT rect, int pixel) { + Control control = findBackgroundControl (); + if (control !is null) { + if (control.backgroundImage !is null) { + fillImageBackground (hDC, control, rect); + return; + } + pixel = control.getBackgroundPixel (); + } + if (pixel is -1) { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + control = findThemeControl (); + if (control !is null) { + fillThemeBackground (hDC, control, rect); + return; + } + } + } + } + if (pixel is -1) pixel = getBackgroundPixel (); + fillBackground (hDC, pixel, rect); +} + +void drawImageBackground (int hDC, int hwnd, int hBitmap, RECT rect) { + RECT rect2 = new RECT (); + OS.GetClientRect (hwnd, rect2); + OS.MapWindowPoints (hwnd, handle, rect2, 2); + int hBrush = findBrush (hBitmap, OS.BS_PATTERN); + POINT lpPoint = new POINT (); + OS.GetWindowOrgEx (hDC, lpPoint); + OS.SetBrushOrgEx (hDC, -rect2.left - lpPoint.x, -rect2.top - lpPoint.y, lpPoint); + int hOldBrush = OS.SelectObject (hDC, hBrush); + OS.PatBlt (hDC, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); + OS.SetBrushOrgEx (hDC, lpPoint.x, lpPoint.y, null); + OS.SelectObject (hDC, hOldBrush); +} + +void drawThemeBackground (int hDC, int hwnd, RECT rect) { + /* Do nothing */ +} + +void enableDrag (bool enabled) { + /* Do nothing */ +} + +void enableWidget (bool enabled) { + OS.EnableWindow (handle, enabled); +} + +void fillBackground (int hDC, int pixel, RECT rect) { + if (rect.left > rect.right || rect.top > rect.bottom) return; + int hPalette = display.hPalette; + if (hPalette !is 0) { + OS.SelectPalette (hDC, hPalette, false); + OS.RealizePalette (hDC); + } + OS.FillRect (hDC, rect, findBrush (pixel, OS.BS_SOLID)); +} + +void fillImageBackground (int hDC, Control control, RECT rect) { + if (rect.left > rect.right || rect.top > rect.bottom) return; + if (control !is null) { + Image image = control.backgroundImage; + if (image !is null) { + control.drawImageBackground (hDC, handle, image.handle, rect); + } + } +} + +void fillThemeBackground (int hDC, Control control, RECT rect) { + if (rect.left > rect.right || rect.top > rect.bottom) return; + if (control !is null) { + control.drawThemeBackground (hDC, handle, rect); + } +} + +Control findBackgroundControl () { + if (background !is -1 || backgroundImage !is null) return this; + return (state & PARENT_BACKGROUND) !is 0 ? parent.findBackgroundControl () : null; +} + +int findBrush (int value, int lbStyle) { + return parent.findBrush (value, lbStyle); +} + +Cursor findCursor () { + if (cursor !is null) return cursor; + return parent.findCursor (); +} + +Control findImageControl () { + Control control = findBackgroundControl (); + return control !is null && control.backgroundImage !is null ? control : null; +} + +Control findThemeControl () { + return background is -1 && backgroundImage is null ? parent.findThemeControl () : null; +} + +Menu [] findMenus (Control control) { + if (menu !is null && this !is control) return new Menu [] {menu}; + return new Menu [0]; +} + +char findMnemonic (String string) { + int index = 0; + int length = string.length (); + do { + while (index < length && string.charAt (index) !is '&') index++; + if (++index >= length) return '\0'; + if (string.charAt (index) !is '&') return string.charAt (index); + index++; + } while (index < length); + return '\0'; +} + +void fixChildren (Shell newShell, Shell oldShell, Decorations newDecorations, Decorations oldDecorations, Menu [] menus) { + oldShell.fixShell (newShell, this); + oldDecorations.fixDecorations (newDecorations, this, menus); +} + +void fixFocus (Control focusControl) { + Shell shell = getShell (); + Control control = this; + while (control !is shell && (control = control.parent) !is null) { + if (control.setFixedFocus ()) return; + } + shell.setSavedFocus (focusControl); + OS.SetFocus (0); +} + +/** + * Forces the receiver to have the <em>keyboard focus</em>, causing + * all keyboard events to be delivered to it. + * + * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setFocus + */ +public bool forceFocus () { + checkWidget (); + if (display.focusEvent is DWT.FocusOut) return false; + Decorations shell = menuShell (); + shell.setSavedFocus (this); + if (!isEnabled () || !isVisible () || !isActive ()) return false; + if (isFocusControl ()) return true; + shell.setSavedFocus (null); + /* + * This code is intentionally commented. + * + * When setting focus to a control, it is + * possible that application code can set + * the focus to another control inside of + * WM_SETFOCUS. In this case, the original + * control will no longer have the focus + * and the call to setFocus() will return + * false indicating failure. + * + * We are still working on a solution at + * this time. + */ +// if (OS.GetFocus () !is OS.SetFocus (handle)) return false; + OS.SetFocus (handle); + if (isDisposed ()) return false; + shell.setSavedFocus (this); + return isFocusControl (); +} + +void forceResize () { + if (parent is null) return; + WINDOWPOS [] lpwp = parent.lpwp; + if (lpwp is null) return; + for (int i=0; i<lpwp.length; i++) { + WINDOWPOS wp = lpwp [i]; + if (wp !is null && wp.hwnd is handle) { + /* + * This code is intentionally commented. All widgets that + * are created by DWT have WS_CLIPSIBLINGS to ensure that + * application code does not draw outside of the control. + */ +// int count = parent.getChildrenCount (); +// if (count > 1) { +// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); +// if ((bits & OS.WS_CLIPSIBLINGS) is 0) wp.flags |= OS.SWP_NOCOPYBITS; +// } + SetWindowPos (wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags); + lpwp [i] = null; + return; + } + } +} + +/** + * Returns the accessible object for the receiver. + * If this is the first time this object is requested, + * then the object is created and returned. + * + * @return the accessible object + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Accessible#addAccessibleListener + * @see Accessible#addAccessibleControlListener + * + * @since 2.0 + */ +public Accessible getAccessible () { + checkWidget (); + if (accessible is null) accessible = new_Accessible (this); + return accessible; +} + +/** + * Returns the receiver's background color. + * + * @return the background color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Color getBackground () { + checkWidget (); + Control control = findBackgroundControl (); + if (control is null) control = this; + return Color.win32_new (display, control.getBackgroundPixel ()); +} + +/** + * Returns the receiver's background image. + * + * @return the background image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public Image getBackgroundImage () { + checkWidget (); + Control control = findBackgroundControl (); + if (control is null) control = this; + return control.backgroundImage; +} + +int getBackgroundPixel () { + return background !is -1 ? background : defaultBackground (); +} + +/** + * Returns the receiver's border width. + * + * @return the border width + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getBorderWidth () { + checkWidget (); + int borderHandle = borderHandle (); + int bits1 = OS.GetWindowLong (borderHandle, OS.GWL_EXSTYLE); + if ((bits1 & OS.WS_EX_CLIENTEDGE) !is 0) return OS.GetSystemMetrics (OS.SM_CXEDGE); + if ((bits1 & OS.WS_EX_STATICEDGE) !is 0) return OS.GetSystemMetrics (OS.SM_CXBORDER); + int bits2 = OS.GetWindowLong (borderHandle, OS.GWL_STYLE); + if ((bits2 & OS.WS_BORDER) !is 0) return OS.GetSystemMetrics (OS.SM_CXBORDER); + return 0; +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent (or its display if its parent is null), + * unless the receiver is a shell. In this case, the location is + * relative to the display. + * + * @return the receiver's bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Rectangle getBounds () { + checkWidget (); + forceResize (); + RECT rect = new RECT (); + OS.GetWindowRect (topHandle (), rect); + int hwndParent = parent is null ? 0 : parent.handle; + OS.MapWindowPoints (0, hwndParent, rect, 2); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +int getCodePage () { + if (OS.IsUnicode) return OS.CP_ACP; + int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + LOGFONT logFont = OS.IsUnicode ? (LOGFONT) new LOGFONTW () : new LOGFONTA (); + OS.GetObject (hFont, LOGFONT.sizeof, logFont); + int cs = logFont.lfCharSet & 0xFF; + int [] lpCs = new int [8]; + if (OS.TranslateCharsetInfo (cs, lpCs, OS.TCI_SRCCHARSET)) { + return lpCs [1]; + } + return OS.GetACP (); +} + +String getClipboardText () { + String string = ""; + if (OS.OpenClipboard (0)) { + int hMem = OS.GetClipboardData (OS.IsUnicode ? OS.CF_UNICODETEXT : OS.CF_TEXT); + if (hMem !is 0) { + /* Ensure byteCount is a multiple of 2 bytes on UNICODE platforms */ + int byteCount = OS.GlobalSize (hMem) / TCHAR.sizeof * TCHAR.sizeof; + int ptr = OS.GlobalLock (hMem); + if (ptr !is 0) { + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, byteCount / TCHAR.sizeof); + OS.MoveMemory (buffer, ptr, byteCount); + string = buffer.toString (0, buffer.strlen ()); + OS.GlobalUnlock (hMem); + } + } + OS.CloseClipboard (); + } + return string; +} + +/** + * Returns the receiver's cursor, or null if it has not been set. + * <p> + * When the mouse pointer passes over a control its appearance + * is changed to match the control's cursor. + * </p> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +public Cursor getCursor () { + checkWidget (); + return cursor; +} + +/** + * Returns <code>true</code> if the receiver is detecting + * drag gestures, and <code>false</code> otherwise. + * + * @return the receiver's drag detect state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +public bool getDragDetect () { + checkWidget (); + return (state & DRAG_DETECT) !is 0; +} + +/** + * Returns <code>true</code> if the receiver is enabled, and + * <code>false</code> otherwise. A disabled control is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #isEnabled + */ +public bool getEnabled () { + checkWidget (); + return OS.IsWindowEnabled (handle); +} + +/** + * Returns the font that the receiver will use to paint textual information. + * + * @return the receiver's font + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Font getFont () { + checkWidget (); + int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (hFont is 0) hFont = defaultFont (); + return Font.win32_new (display, hFont); +} + +/** + * Returns the foreground color that the receiver will use to draw. + * + * @return the receiver's foreground color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Color getForeground () { + checkWidget (); + return Color.win32_new (display, getForegroundPixel ()); +} + +int getForegroundPixel () { + return foreground !is -1 ? foreground : defaultForeground (); +} + +/** + * Returns layout data which is associated with the receiver. + * + * @return the receiver's layout data + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Object getLayoutData () { + checkWidget (); + return layoutData; +} + +/** + * Returns a point describing the receiver's location relative + * to its parent (or its display if its parent is null), unless + * the receiver is a shell. In this case, the point is + * relative to the display. + * + * @return the receiver's location + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getLocation () { + checkWidget (); + forceResize (); + RECT rect = new RECT (); + OS.GetWindowRect (topHandle (), rect); + int hwndParent = parent is null ? 0 : parent.handle; + OS.MapWindowPoints (0, hwndParent, rect, 2); + return new Point (rect.left, rect.top); +} + +/** + * Returns the receiver's pop up menu if it has one, or null + * if it does not. All controls may optionally have a pop up + * menu that is displayed when the user requests one for + * the control. The sequence of key strokes, button presses + * and/or button releases that are used to request a pop up + * menu is platform specific. + * + * @return the receiver's menu + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Menu getMenu () { + checkWidget (); + return menu; +} + +/** + * Returns the receiver's monitor. + * + * @return the receiver's monitor + * + * @since 3.0 + */ +public Monitor getMonitor () { + checkWidget (); + if (OS.IsWinCE || OS.WIN32_VERSION < OS.VERSION (4, 10)) { + return display.getPrimaryMonitor (); + } + int hmonitor = OS.MonitorFromWindow (handle, OS.MONITOR_DEFAULTTONEAREST); + MONITORINFO lpmi = new MONITORINFO (); + lpmi.cbSize = MONITORINFO.sizeof; + OS.GetMonitorInfo (hmonitor, lpmi); + Monitor monitor = new Monitor (); + monitor.handle = hmonitor; + monitor.x = lpmi.rcMonitor_left; + monitor.y = lpmi.rcMonitor_top; + monitor.width = lpmi.rcMonitor_right - lpmi.rcMonitor_left; + monitor.height = lpmi.rcMonitor_bottom - lpmi.rcMonitor_top; + monitor.clientX = lpmi.rcWork_left; + monitor.clientY = lpmi.rcWork_top; + monitor.clientWidth = lpmi.rcWork_right - lpmi.rcWork_left; + monitor.clientHeight = lpmi.rcWork_bottom - lpmi.rcWork_top; + return monitor; +} + +/** + * Returns the receiver's parent, which must be a <code>Composite</code> + * or null when the receiver is a shell that was created with null or + * a display for a parent. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Composite getParent () { + checkWidget (); + return parent; +} + +Control [] getPath () { + int count = 0; + Shell shell = getShell (); + Control control = this; + while (control !is shell) { + count++; + control = control.parent; + } + control = this; + Control [] result = new Control [count]; + while (control !is shell) { + result [--count] = control; + control = control.parent; + } + return result; +} + +/** + * Returns the receiver's shell. For all controls other than + * shells, this simply returns the control's nearest ancestor + * shell. Shells return themselves, even if they are children + * of other shells. + * + * @return the receiver's shell + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getParent + */ +public Shell getShell () { + checkWidget (); + return parent.getShell (); +} + +/** + * Returns a point describing the receiver's size. The + * x coordinate of the result is the width of the receiver. + * The y coordinate of the result is the height of the + * receiver. + * + * @return the receiver's size + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getSize () { + checkWidget (); + forceResize (); + RECT rect = new RECT (); + OS.GetWindowRect (topHandle (), rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + return new Point (width, height); +} + +/** + * Returns the receiver's tool tip text, or null if it has + * not been set. + * + * @return the receiver's tool tip text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getToolTipText () { + checkWidget (); + return toolTipText; +} + +/** + * Returns <code>true</code> if the receiver is visible, and + * <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getVisible () { + checkWidget (); + if (drawCount !is 0) return (state & HIDDEN) is 0; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + return (bits & OS.WS_VISIBLE) !is 0; +} + +bool hasCursor () { + RECT rect = new RECT (); + if (!OS.GetClientRect (handle, rect)) return false; + OS.MapWindowPoints (handle, 0, rect, 2); + POINT pt = new POINT (); + return OS.GetCursorPos (pt) && OS.PtInRect (rect, pt); +} + +bool hasFocus () { + /* + * If a non-DWT child of the control has focus, + * then this control is considered to have focus + * even though it does not have focus in Windows. + */ + int hwndFocus = OS.GetFocus (); + while (hwndFocus !is 0) { + if (hwndFocus is handle) return true; + if (display.getControl (hwndFocus) !is null) { + return false; + } + hwndFocus = OS.GetParent (hwndFocus); + } + return false; +} + +/** + * Invokes platform specific functionality to allocate a new GC handle. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Control</code>. It is marked public only so that it + * can be shared within the packages provided by DWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + * + * @param data the platform specific GC data + * @return the platform specific GC handle + */ +public int internal_new_GC (GCData data) { + checkWidget(); + int hwnd = handle; + if (data !is null && data.hwnd !is 0) hwnd = data.hwnd; + if (data !is null) data.hwnd = hwnd; + int hDC = 0; + if (data is null || data.ps is null) { + hDC = OS.GetDC (hwnd); + } else { + hDC = OS.BeginPaint (hwnd, data.ps); + } + if (hDC is 0) DWT.error(DWT.ERROR_NO_HANDLES); + if (data !is null) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; + if ((data.style & mask) !is 0) { + data.layout = (data.style & DWT.RIGHT_TO_LEFT) !is 0 ? OS.LAYOUT_RTL : 0; + } else { + int flags = OS.GetLayout (hDC); + if ((flags & OS.LAYOUT_RTL) !is 0) { + data.style |= DWT.RIGHT_TO_LEFT | DWT.MIRRORED; + } else { + data.style |= DWT.LEFT_TO_RIGHT; + } + } + } else { + data.style |= DWT.LEFT_TO_RIGHT; + } + data.device = display; + int foreground = getForegroundPixel (); + if (foreground !is OS.GetTextColor (hDC)) data.foreground = foreground; + Control control = findBackgroundControl (); + if (control is null) control = this; + int background = control.getBackgroundPixel (); + if (background !is OS.GetBkColor (hDC)) data.background = background; + data.hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); + data.uiState = OS.SendMessage (hwnd, OS.WM_QUERYUISTATE, 0, 0); + } + return hDC; +} + +/** + * Invokes platform specific functionality to dispose a GC handle. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Control</code>. It is marked public only so that it + * can be shared within the packages provided by DWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + * + * @param hDC the platform specific GC handle + * @param data the platform specific GC data + */ +public void internal_dispose_GC (int hDC, GCData data) { + checkWidget (); + int hwnd = handle; + if (data !is null && data.hwnd !is 0) { + hwnd = data.hwnd; + } + if (data is null || data.ps is null) { + OS.ReleaseDC (hwnd, hDC); + } else { + OS.EndPaint (hwnd, data.ps); + } +} + +bool isActive () { + Shell dialogShell = display.getModalDialogShell (); + if (dialogShell !is null && dialogShell !is getShell ()) { + return false; + } + Shell shell = null; + Shell [] modalShells = display.modalShells; + if (modalShells !is null) { + int bits = DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL; + int index = modalShells.length; + while (--index >= 0) { + Shell modal = modalShells [index]; + if (modal !is null) { + if ((modal.style & bits) !is 0) { + Control control = this; + while (control !is null) { + if (control is modal) break; + control = control.parent; + } + if (control !is modal) return false; + break; + } + if ((modal.style & DWT.PRIMARY_MODAL) !is 0) { + if (shell is null) shell = getShell (); + if (modal.parent is shell) return false; + } + } + } + } + if (shell is null) shell = getShell (); + return shell.getEnabled (); +} + +/** + * Returns <code>true</code> if the receiver is enabled and all + * ancestors up to and including the receiver's nearest ancestor + * shell are enabled. Otherwise, <code>false</code> is returned. + * A disabled control is typically not selectable from the user + * interface and draws with an inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getEnabled + */ +public bool isEnabled () { + checkWidget (); + return getEnabled () && parent.isEnabled (); +} + +/** + * Returns <code>true</code> if the receiver has the user-interface + * focus, and <code>false</code> otherwise. + * + * @return the receiver's focus state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool isFocusControl () { + checkWidget (); + Control focusControl = display.focusControl; + if (focusControl !is null && !focusControl.isDisposed ()) { + return this is focusControl; + } + return hasFocus (); +} + +bool isFocusAncestor (Control control) { + while (control !is null && control !is this && !(control instanceof Shell)) { + control = control.parent; + } + return control is this; +} + +/** + * Returns <code>true</code> if the underlying operating + * system supports this reparenting, otherwise <code>false</code> + * + * @return <code>true</code> if the widget can be reparented, otherwise <code>false</code> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool isReparentable () { + checkWidget (); + return true; +} + +bool isShowing () { + /* + * This is not complete. Need to check if the + * widget is obscured by a parent or sibling. + */ + if (!isVisible ()) return false; + Control control = this; + while (control !is null) { + Point size = control.getSize (); + if (size.x is 0 || size.y is 0) { + return false; + } + control = control.parent; + } + return true; + /* + * Check to see if current damage is included. + */ +// if (!OS.IsWindowVisible (handle)) return false; +// int flags = OS.DCX_CACHE | OS.DCX_CLIPCHILDREN | OS.DCX_CLIPSIBLINGS; +// int hDC = OS.GetDCEx (handle, 0, flags); +// int result = OS.GetClipBox (hDC, new RECT ()); +// OS.ReleaseDC (handle, hDC); +// return result !is OS.NULLREGION; +} + +bool isTabGroup () { + Control [] tabList = parent._getTabList (); + if (tabList !is null) { + for (int i=0; i<tabList.length; i++) { + if (tabList [i] is this) return true; + } + } + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + return (bits & OS.WS_TABSTOP) !is 0; +} + +bool isTabItem () { + Control [] tabList = parent._getTabList (); + if (tabList !is null) { + for (int i=0; i<tabList.length; i++) { + if (tabList [i] is this) return false; + } + } + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.WS_TABSTOP) !is 0) return false; + int code = OS.SendMessage (handle, OS.WM_GETDLGCODE, 0, 0); + if ((code & OS.DLGC_STATIC) !is 0) return false; + if ((code & OS.DLGC_WANTALLKEYS) !is 0) return false; + if ((code & OS.DLGC_WANTARROWS) !is 0) return false; + if ((code & OS.DLGC_WANTTAB) !is 0) return false; + return true; +} + +/** + * Returns <code>true</code> if the receiver is visible and all + * ancestors up to and including the receiver's nearest ancestor + * shell are visible. Otherwise, <code>false</code> is returned. + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getVisible + */ +public bool isVisible () { + checkWidget (); + if (OS.IsWindowVisible (handle)) return true; + return getVisible () && parent.isVisible (); +} + +void mapEvent (int hwnd, Event event) { + if (hwnd !is handle) { + POINT point = new POINT (); + point.x = event.x; + point.y = event.y; + OS.MapWindowPoints (hwnd, handle, point, 1); + event.x = point.x; + event.y = point.y; + } +} + +void markLayout (bool changed, bool all) { + /* Do nothing */ +} + +Decorations menuShell () { + return parent.menuShell (); +} + +bool mnemonicHit (char key) { + return false; +} + +bool mnemonicMatch (char key) { + return false; +} + +/** + * Moves the receiver above the specified control in the + * drawing order. If the argument is null, then the receiver + * is moved to the top of the drawing order. The control at + * the top of the drawing order will not be covered by other + * controls even if they occupy intersecting areas. + * + * @param control the sibling control (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Control#moveBelow + * @see Composite#getChildren + */ +public void moveAbove (Control control) { + checkWidget (); + int topHandle = topHandle (), hwndAbove = OS.HWND_TOP; + if (control !is null) { + if (control.isDisposed ()) error(DWT.ERROR_INVALID_ARGUMENT); + if (parent !is control.parent) return; + int hwnd = control.topHandle (); + if (hwnd is 0 || hwnd is topHandle) return; + hwndAbove = OS.GetWindow (hwnd, OS.GW_HWNDPREV); + /* + * Bug in Windows. For some reason, when GetWindow () + * with GW_HWNDPREV is used to query the previous window + * in the z-order with the first child, Windows returns + * the first child instead of NULL. The fix is to detect + * this case and move the control to the top. + */ + if (hwndAbove is 0 || hwndAbove is hwnd) { + hwndAbove = OS.HWND_TOP; + } + } + int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; + SetWindowPos (topHandle, hwndAbove, 0, 0, 0, 0, flags); +} + +/** + * Moves the receiver below the specified control in the + * drawing order. If the argument is null, then the receiver + * is moved to the bottom of the drawing order. The control at + * the bottom of the drawing order will be covered by all other + * controls which occupy intersecting areas. + * + * @param control the sibling control (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Control#moveAbove + * @see Composite#getChildren + */ +public void moveBelow (Control control) { + checkWidget (); + int topHandle = topHandle (), hwndAbove = OS.HWND_BOTTOM; + if (control !is null) { + if (control.isDisposed ()) error(DWT.ERROR_INVALID_ARGUMENT); + if (parent !is control.parent) return; + hwndAbove = control.topHandle (); + } else { + /* + * Bug in Windows. When SetWindowPos() is called + * with HWND_BOTTOM on a dialog shell, the dialog + * and the parent are moved to the bottom of the + * desktop stack. The fix is to move the dialog + * to the bottom of the dialog window stack by + * moving behind the first dialog child. + */ + Shell shell = getShell (); + if (this is shell && parent !is null) { + /* + * Bug in Windows. For some reason, when GetWindow () + * with GW_HWNDPREV is used to query the previous window + * in the z-order with the first child, Windows returns + * the first child instead of NULL. The fix is to detect + * this case and do nothing because the control is already + * at the bottom. + */ + int hwndParent = parent.handle, hwnd = hwndParent; + hwndAbove = OS.GetWindow (hwnd, OS.GW_HWNDPREV); + while (hwndAbove !is 0 && hwndAbove !is hwnd) { + if (OS.GetWindow (hwndAbove, OS.GW_OWNER) is hwndParent) break; + hwndAbove = OS.GetWindow (hwnd = hwndAbove, OS.GW_HWNDPREV); + } + if (hwndAbove is hwnd) return; + } + } + if (hwndAbove is 0 || hwndAbove is topHandle) return; + int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; + SetWindowPos (topHandle, hwndAbove, 0, 0, 0, 0, flags); +} + +Accessible new_Accessible (Control control) { + return Accessible.internal_new_Accessible (this); +} + +GC new_GC (GCData data) { + return GC.win32_new (this, data); +} + +/** + * Causes the receiver to be resized to its preferred size. + * For a composite, this involves computing the preferred size + * from its layout, if there is one. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #computeSize(int, int, bool) + */ +public void pack () { + checkWidget (); + pack (true); +} + +/** + * Causes the receiver to be resized to its preferred size. + * For a composite, this involves computing the preferred size + * from its layout, if there is one. + * <p> + * If the changed flag is <code>true</code>, it indicates that the receiver's + * <em>contents</em> have changed, therefore any caches that a layout manager + * containing the control may have been keeping need to be flushed. When the + * control is resized, the changed flag will be <code>false</code>, so layout + * manager caches can be retained. + * </p> + * + * @param changed whether or not the receiver's contents have changed + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #computeSize(int, int, bool) + */ +public void pack (bool changed) { + checkWidget (); + setSize (computeSize (DWT.DEFAULT, DWT.DEFAULT, changed)); +} + +/** + * Causes the entire bounds of the receiver to be marked + * as needing to be redrawn. The next time a paint request + * is processed, the control will be completely painted, + * including the background. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #update() + * @see PaintListener + * @see DWT#Paint + * @see DWT#NO_BACKGROUND + * @see DWT#NO_REDRAW_RESIZE + * @see DWT#NO_MERGE_PAINTS + * @see DWT#DOUBLE_BUFFERED + */ +public void redraw () { + checkWidget (); + redraw (false); +} + +void redraw (bool all) { +// checkWidget (); + if (!OS.IsWindowVisible (handle)) return; + if (OS.IsWinCE) { + OS.InvalidateRect (handle, null, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; + if (all) flags |= OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } +} +/** + * Causes the rectangular area of the receiver specified by + * the arguments to be marked as needing to be redrawn. + * The next time a paint request is processed, that area of + * the receiver will be painted, including the background. + * If the <code>all</code> flag is <code>true</code>, any + * children of the receiver which intersect with the specified + * area will also paint their intersecting areas. If the + * <code>all</code> flag is <code>false</code>, the children + * will not be painted. + * + * @param x the x coordinate of the area to draw + * @param y the y coordinate of the area to draw + * @param width the width of the area to draw + * @param height the height of the area to draw + * @param all <code>true</code> if children should redraw, and <code>false</code> otherwise + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #update() + * @see PaintListener + * @see DWT#Paint + * @see DWT#NO_BACKGROUND + * @see DWT#NO_REDRAW_RESIZE + * @see DWT#NO_MERGE_PAINTS + * @see DWT#DOUBLE_BUFFERED + */ +public void redraw (int x, int y, int width, int height, bool all) { + checkWidget (); + if (width <= 0 || height <= 0) return; + if (!OS.IsWindowVisible (handle)) return; + RECT rect = new RECT (); + OS.SetRect (rect, x, y, x + width, y + height); + if (OS.IsWinCE) { + OS.InvalidateRect (handle, rect, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; + if (all) flags |= OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, rect, 0, flags); + } +} + +bool redrawChildren () { + if (!OS.IsWindowVisible (handle)) return false; + Control control = findBackgroundControl (); + if (control is null) { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + OS.InvalidateRect (handle, null, true); + return true; + } + } + } else { + if (control.backgroundImage !is null) { + OS.InvalidateRect (handle, null, true); + return true; + } + } + return false; +} + +void register () { + display.addControl (handle, this); +} + +void releaseHandle () { + super.releaseHandle (); + handle = 0; + parent = null; +} + +void releaseParent () { + parent.removeControl (this); +} + +void releaseWidget () { + super.releaseWidget (); + if (OS.IsDBLocale) { + OS.ImmAssociateContext (handle, 0); + } + if (toolTipText !is null) { + setToolTipText (getShell (), null); + } + toolTipText = null; + if (menu !is null && !menu.isDisposed ()) { + menu.dispose (); + } + backgroundImage = null; + menu = null; + cursor = null; + unsubclass (); + deregister (); + layoutData = null; + if (accessible !is null) { + accessible.internal_dispose_Accessible (); + } + accessible = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is moved or resized. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ControlListener + * @see #addControlListener + */ +public void removeControlListener (ControlListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Move, listener); + eventTable.unhook (DWT.Resize, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when a drag gesture occurs. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DragDetectListener + * @see #addDragDetectListener + * + * @since 3.3 + */ +public void removeDragDetectListener(DragDetectListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.DragDetect, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control gains or loses focus. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see FocusListener + * @see #addFocusListener + */ +public void removeFocusListener(FocusListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.FocusIn, listener); + eventTable.unhook (DWT.FocusOut, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the help events are generated for the control. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see HelpListener + * @see #addHelpListener + */ +public void removeHelpListener (HelpListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Help, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when keys are pressed and released on the system keyboard. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see KeyListener + * @see #addKeyListener + */ +public void removeKeyListener(KeyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.KeyUp, listener); + eventTable.unhook (DWT.KeyDown, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the platform-specific context menu trigger has + * occurred. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MenuDetectListener + * @see #addMenuDetectListener + * + * @since 3.3 + */ +public void removeMenuDetectListener (MenuDetectListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.MenuDetect, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the mouse passes or hovers over controls. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MouseTrackListener + * @see #addMouseTrackListener + */ +public void removeMouseTrackListener(MouseTrackListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.MouseEnter, listener); + eventTable.unhook (DWT.MouseExit, listener); + eventTable.unhook (DWT.MouseHover, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when mouse buttons are pressed and released. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MouseListener + * @see #addMouseListener + */ +public void removeMouseListener (MouseListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.MouseDown, listener); + eventTable.unhook (DWT.MouseUp, listener); + eventTable.unhook (DWT.MouseDoubleClick, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the mouse moves. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MouseMoveListener + * @see #addMouseMoveListener + */ +public void removeMouseMoveListener(MouseMoveListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.MouseMove, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the mouse wheel is scrolled. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MouseWheelListener + * @see #addMouseWheelListener + * + * @since 3.3 + */ +public void removeMouseWheelListener (MouseWheelListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.MouseWheel, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the receiver needs to be painted. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see PaintListener + * @see #addPaintListener + */ +public void removePaintListener(PaintListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook(DWT.Paint, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when traversal events occur. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see TraverseListener + * @see #addTraverseListener + */ +public void removeTraverseListener(TraverseListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Traverse, listener); +} + +void showWidget (bool visible) { + int topHandle = topHandle (); + OS.ShowWindow (topHandle, visible ? OS.SW_SHOW : OS.SW_HIDE); + if (handle !is topHandle) OS.ShowWindow (handle, visible ? OS.SW_SHOW : OS.SW_HIDE); +} + +bool sendFocusEvent (int type) { + Shell shell = getShell (); + + /* + * Feature in Windows. During the processing of WM_KILLFOCUS, + * when the focus window is queried using GetFocus(), it has + * already been assigned to the new window. The fix is to + * remember the control that is losing or gaining focus and + * answer it during WM_KILLFOCUS. If a WM_SETFOCUS occurs + * during WM_KILLFOCUS, the focus control needs to be updated + * to the current control. At any other time, the focus + * control matches Windows. + */ + Display display = this.display; + display.focusEvent = type; + display.focusControl = this; + sendEvent (type); + // widget could be disposed at this point + display.focusEvent = DWT.None; + display.focusControl = null; + + /* + * It is possible that the shell may be + * disposed at this point. If this happens + * don't send the activate and deactivate + * events. + */ + if (!shell.isDisposed ()) { + switch (type) { + case DWT.FocusIn: + shell.setActiveControl (this); + break; + case DWT.FocusOut: + if (shell !is display.getActiveShell ()) { + shell.setActiveControl (null); + } + break; + } + } + return true; +} + +void setBackground () { + Control control = findBackgroundControl (); + if (control is null) control = this; + if (control.backgroundImage !is null) { + Shell shell = getShell (); + shell.releaseBrushes (); + setBackgroundImage (control.backgroundImage.handle); + } else { + setBackgroundPixel (control.background is -1 ? control.defaultBackground() : control.background); + } +} + +/** + * Sets the receiver's background color to the color specified + * by the argument, or to the default system color for the control + * if the argument is null. + * <p> + * Note: This operation is a hint and may be overridden by the platform. + * For example, on Windows the background of a Button cannot be changed. + * </p> + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setBackground (Color color) { + checkWidget (); + int pixel = -1; + if (color !is null) { + if (color.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); + pixel = color.handle; + } + if (pixel is background) return; + background = pixel; + updateBackgroundColor (); +} + +/** + * Sets the receiver's background image to the image specified + * by the argument, or to the default system color for the control + * if the argument is null. The background image is tiled to fill + * the available space. + * <p> + * Note: This operation is a hint and may be overridden by the platform. + * For example, on Windows the background of a Button cannot be changed. + * </p> + * @param image the new image (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * <li>ERROR_INVALID_ARGUMENT - if the argument is not a bitmap</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setBackgroundImage (Image image) { + checkWidget (); + if (image !is null) { + if (image.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + if (image.type !is DWT.BITMAP) error (DWT.ERROR_INVALID_ARGUMENT); + } + if (backgroundImage is image) return; + backgroundImage = image; + Shell shell = getShell (); + shell.releaseBrushes (); + updateBackgroundImage (); +} + +void setBackgroundImage (int hBitmap) { + if (OS.IsWinCE) { + OS.InvalidateRect (handle, null, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; + OS.RedrawWindow (handle, null, 0, flags); + } +} + +void setBackgroundPixel (int pixel) { + if (OS.IsWinCE) { + OS.InvalidateRect (handle, null, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; + OS.RedrawWindow (handle, null, 0, flags); + } +} + +/** + * Sets the receiver's size and location to the rectangular + * area specified by the arguments. The <code>x</code> and + * <code>y</code> arguments are relative to the receiver's + * parent (or its display if its parent is null), unless + * the receiver is a shell. In this case, the <code>x</code> + * and <code>y</code> arguments are relative to the display. + * <p> + * Note: Attempting to set the width or height of the + * receiver to a negative number will cause that + * value to be set to zero instead. + * </p> + * + * @param x the new x coordinate for the receiver + * @param y the new y coordinate for the receiver + * @param width the new width for the receiver + * @param height the new height for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setBounds (int x, int y, int width, int height) { + checkWidget (); + int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; + setBounds (x, y, Math.max (0, width), Math.max (0, height), flags); +} + +void setBounds (int x, int y, int width, int height, int flags) { + setBounds (x, y, width, height, flags, true); +} + +void setBounds (int x, int y, int width, int height, int flags, bool defer) { + int topHandle = topHandle (); + if (defer && parent !is null) { + forceResize (); + if (OS.GetWindow (handle, OS.GW_CHILD) is 0) { + if (findImageControl () !is null) { + flags |= OS.SWP_NOCOPYBITS; + } else { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (findThemeControl () !is null) flags |= OS.SWP_NOCOPYBITS; + } + } + } + WINDOWPOS [] lpwp = parent.lpwp; + if (lpwp is null) { + SetWindowPos (topHandle, 0, x, y, width, height, flags); + } else { + int index = 0; + while (index < lpwp.length) { + if (lpwp [index] is null) break; + index ++; + } + if (index is lpwp.length) { + WINDOWPOS [] newLpwp = new WINDOWPOS [lpwp.length + 4]; + System.arraycopy (lpwp, 0, newLpwp, 0, lpwp.length); + parent.lpwp = lpwp = newLpwp; + } + WINDOWPOS wp = new WINDOWPOS (); + wp.hwnd = topHandle; + wp.x = x; + wp.y = y; + wp.cx = width; + wp.cy = height; + wp.flags = flags; + lpwp [index] = wp; + } + } else { + SetWindowPos (topHandle, 0, x, y, width, height, flags); + } +} + +/** + * Sets the receiver's size and location to the rectangular + * area specified by the argument. The <code>x</code> and + * <code>y</code> fields of the rectangle are relative to + * the receiver's parent (or its display if its parent is null). + * <p> + * Note: Attempting to set the width or height of the + * receiver to a negative number will cause that + * value to be set to zero instead. + * </p> + * + * @param rect the new bounds for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setBounds (Rectangle rect) { + checkWidget (); + if (rect is null) error (DWT.ERROR_NULL_ARGUMENT); + setBounds (rect.x, rect.y, rect.width, rect.height); +} + +/** + * If the argument is <code>true</code>, causes the receiver to have + * all mouse events delivered to it until the method is called with + * <code>false</code> as the argument. + * + * @param capture <code>true</code> to capture the mouse, and <code>false</code> to release it + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setCapture (bool capture) { + checkWidget (); + if (capture) { + OS.SetCapture (handle); + } else { + if (OS.GetCapture () is handle) { + OS.ReleaseCapture (); + } + } +} + +void setCursor () { + int lParam = OS.HTCLIENT | (OS.WM_MOUSEMOVE << 16); + OS.SendMessage (handle, OS.WM_SETCURSOR, handle, lParam); +} + +/** + * Sets the receiver's cursor to the cursor specified by the + * argument, or to the default cursor for that kind of control + * if the argument is null. + * <p> + * When the mouse pointer passes over a control its appearance + * is changed to match the control's cursor. + * </p> + * + * @param cursor the new cursor (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setCursor (Cursor cursor) { + checkWidget (); + if (cursor !is null && cursor.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); + this.cursor = cursor; + if (OS.IsWinCE) { + int hCursor = cursor !is null ? cursor.handle : 0; + OS.SetCursor (hCursor); + return; + } + int hwndCursor = OS.GetCapture (); + if (hwndCursor is 0) { + POINT pt = new POINT (); + if (!OS.GetCursorPos (pt)) return; + int hwnd = hwndCursor = OS.WindowFromPoint (pt); + while (hwnd !is 0 && hwnd !is handle) { + hwnd = OS.GetParent (hwnd); + } + if (hwnd is 0) return; + } + Control control = display.getControl (hwndCursor); + if (control is null) control = this; + control.setCursor (); +} + +void setDefaultFont () { + int hFont = display.getSystemFont ().handle; + OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0); +} + +/** + * Sets the receiver's drag detect state. If the argument is + * <code>true</code>, the receiver will detect drag gestures, + * otherwise these gestures will be ignored. + * + * @param dragDetect the new drag detect state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +public void setDragDetect (bool dragDetect) { + checkWidget (); + if (dragDetect) { + state |= DRAG_DETECT; + } else { + state &= ~DRAG_DETECT; + } + enableDrag (dragDetect); +} + +/** + * Enables the receiver if the argument is <code>true</code>, + * and disables it otherwise. A disabled control is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @param enabled the new enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setEnabled (bool enabled) { + checkWidget (); + /* + * Feature in Windows. If the receiver has focus, disabling + * the receiver causes no window to have focus. The fix is + * to assign focus to the first ancestor window that takes + * focus. If no window will take focus, set focus to the + * desktop. + */ + Control control = null; + bool fixFocus = false; + if (!enabled) { + if (display.focusEvent !is DWT.FocusOut) { + control = display.getFocusControl (); + fixFocus = isFocusAncestor (control); + } + } + enableWidget (enabled); + if (fixFocus) fixFocus (control); +} + +bool setFixedFocus () { + if ((style & DWT.NO_FOCUS) !is 0) return false; + return forceFocus (); +} + +/** + * Causes the receiver to have the <em>keyboard focus</em>, + * such that all keyboard events will be delivered to it. Focus + * reassignment will respect applicable platform constraints. + * + * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #forceFocus + */ +public bool setFocus () { + checkWidget (); + if ((style & DWT.NO_FOCUS) !is 0) return false; + return forceFocus (); +} + +/** + * Sets the font that the receiver will use to paint textual information + * to the font specified by the argument, or to the default font for that + * kind of control if the argument is null. + * + * @param font the new font (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setFont (Font font) { + checkWidget (); + int hFont = 0; + if (font !is null) { + if (font.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); + hFont = font.handle; + } + if (hFont is 0) hFont = defaultFont (); + OS.SendMessage (handle, OS.WM_SETFONT, hFont, 1); +} + +/** + * Sets the receiver's foreground color to the color specified + * by the argument, or to the default system color for the control + * if the argument is null. + * <p> + * Note: This operation is a hint and may be overridden by the platform. + * </p> + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setForeground (Color color) { + checkWidget (); + int pixel = -1; + if (color !is null) { + if (color.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); + pixel = color.handle; + } + if (pixel is foreground) return; + foreground = pixel; + setForegroundPixel (pixel); +} + +void setForegroundPixel (int pixel) { + OS.InvalidateRect (handle, null, true); +} + +/** + * Sets the layout data associated with the receiver to the argument. + * + * @param layoutData the new layout data for the receiver. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLayoutData (Object layoutData) { + checkWidget (); + this.layoutData = layoutData; +} + +/** + * Sets the receiver's location to the point specified by + * the arguments which are relative to the receiver's + * parent (or its display if its parent is null), unless + * the receiver is a shell. In this case, the point is + * relative to the display. + * + * @param x the new x coordinate for the receiver + * @param y the new y coordinate for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLocation (int x, int y) { + checkWidget (); + int flags = OS.SWP_NOSIZE | OS.SWP_NOZORDER | OS.SWP_NOACTIVATE; + /* + * Feature in WinCE. The SWP_DRAWFRAME flag for SetWindowPos() + * causes a WM_SIZE message to be sent even when the SWP_NOSIZE + * flag is specified. The fix is to set SWP_DRAWFRAME only when + * not running on WinCE. + */ + if (!OS.IsWinCE) flags |= OS.SWP_DRAWFRAME; + setBounds (x, y, 0, 0, flags); +} + +/** + * Sets the receiver's location to the point specified by + * the arguments which are relative to the receiver's + * parent (or its display if its parent is null), unless + * the receiver is a shell. In this case, the point is + * relative to the display. + * + * @param location the new location for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLocation (Point location) { + checkWidget (); + if (location is null) error (DWT.ERROR_NULL_ARGUMENT); + setLocation (location.x, location.y); +} + +/** + * Sets the receiver's pop up menu to the argument. + * All controls may optionally have a pop up + * menu that is displayed when the user requests one for + * the control. The sequence of key strokes, button presses + * and/or button releases that are used to request a pop up + * menu is platform specific. + * <p> + * Note: Disposing of a control that has a pop up menu will + * dispose of the menu. To avoid this behavior, set the + * menu to null before the control is disposed. + * </p> + * + * @param menu the new pop up menu + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_MENU_NOT_POP_UP - the menu is not a pop up menu</li> + * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</li> + * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMenu (Menu menu) { + checkWidget (); + if (menu !is null) { + if (menu.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); + if ((menu.style & DWT.POP_UP) is 0) { + error (DWT.ERROR_MENU_NOT_POP_UP); + } + if (menu.parent !is menuShell ()) { + error (DWT.ERROR_INVALID_PARENT); + } + } + this.menu = menu; +} + +bool setRadioFocus () { + return false; +} + +bool setRadioSelection (bool value) { + return false; +} + +/** + * If the argument is <code>false</code>, causes subsequent drawing + * operations in the receiver to be ignored. No drawing of any kind + * can occur in the receiver until the flag is set to true. + * Graphics operations that occurred while the flag was + * <code>false</code> are lost. When the flag is set to <code>true</code>, + * the entire widget is marked as needing to be redrawn. Nested calls + * to this method are stacked. + * <p> + * Note: This operation is a hint and may not be supported on some + * platforms or for some widgets. + * </p> + * + * @param redraw the new redraw state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #redraw(int, int, int, int, bool) + * @see #update() + */ +public void setRedraw (bool redraw) { + checkWidget (); + /* + * Feature in Windows. When WM_SETREDRAW is used to turn + * off drawing in a widget, it clears the WS_VISIBLE bits + * and then sets them when redraw is turned back on. This + * means that WM_SETREDRAW will make a widget unexpectedly + * visible. The fix is to track the visibility state while + * drawing is turned off and restore it when drawing is + * turned back on. + */ + if (drawCount is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.WS_VISIBLE) is 0) state |= HIDDEN; + } + if (redraw) { + if (--drawCount is 0) { + int topHandle = topHandle (); + OS.SendMessage (topHandle, OS.WM_SETREDRAW, 1, 0); + if (handle !is topHandle) OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + if ((state & HIDDEN) !is 0) { + state &= ~HIDDEN; + OS.ShowWindow (topHandle, OS.SW_HIDE); + if (handle !is topHandle) OS.ShowWindow (handle, OS.SW_HIDE); + } else { + if (OS.IsWinCE) { + OS.InvalidateRect (topHandle, null, true); + if (handle !is topHandle) OS.InvalidateRect (handle, null, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (topHandle, null, 0, flags); + } + } + } + } else { + if (drawCount++ is 0) { + int topHandle = topHandle (); + OS.SendMessage (topHandle, OS.WM_SETREDRAW, 0, 0); + if (handle !is topHandle) OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } + } +} + +bool setSavedFocus () { + return forceFocus (); +} + +/** + * Sets the receiver's size to the point specified by the arguments. + * <p> + * Note: Attempting to set the width or height of the + * receiver to a negative number will cause that + * value to be set to zero instead. + * </p> + * + * @param width the new width for the receiver + * @param height the new height for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSize (int width, int height) { + checkWidget (); + int flags = OS.SWP_NOMOVE | OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; + setBounds (0, 0, Math.max (0, width), Math.max (0, height), flags); +} + +/** + * Sets the receiver's size to the point specified by the argument. + * <p> + * Note: Attempting to set the width or height of the + * receiver to a negative number will cause them to be + * set to zero instead. + * </p> + * + * @param size the new size for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSize (Point size) { + checkWidget (); + if (size is null) error (DWT.ERROR_NULL_ARGUMENT); + setSize (size.x, size.y); +} + +bool setTabGroupFocus () { + return setTabItemFocus (); +} + +bool setTabItemFocus () { + if (!isShowing ()) return false; + return forceFocus (); +} + +/** + * Sets the receiver's tool tip text to the argument, which + * may be null indicating that no tool tip text should be shown. + * + * @param string the new tool tip text (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setToolTipText (String string) { + checkWidget (); + toolTipText = string; + setToolTipText (getShell (), string); +} + +void setToolTipText (Shell shell, String string) { + shell.setToolTipText (handle, string); +} + +/** + * Marks the receiver as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param visible the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setVisible (bool visible) { + checkWidget (); + if (drawCount !is 0) { + if (((state & HIDDEN) is 0) is visible) return; + } else { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if (((bits & OS.WS_VISIBLE) !is 0) is visible) return; + } + if (visible) { + sendEvent (DWT.Show); + if (isDisposed ()) return; + } + + /* + * Feature in Windows. If the receiver has focus, hiding + * the receiver causes no window to have focus. The fix is + * to assign focus to the first ancestor window that takes + * focus. If no window will take focus, set focus to the + * desktop. + */ + Control control = null; + bool fixFocus = false; + if (!visible) { + if (display.focusEvent !is DWT.FocusOut) { + control = display.getFocusControl (); + fixFocus = isFocusAncestor (control); + } + } + if (drawCount !is 0) { + state = visible ? state & ~HIDDEN : state | HIDDEN; + } else { + showWidget (visible); + if (isDisposed ()) return; + } + if (!visible) { + sendEvent (DWT.Hide); + if (isDisposed ()) return; + } + if (fixFocus) fixFocus (control); +} + +void sort (int [] items) { + /* Shell Sort from K&R, pg 108 */ + int length = items.length; + for (int gap=length/2; gap>0; gap/=2) { + for (int i=gap; i<length; i++) { + for (int j=i-gap; j>=0; j-=gap) { + if (items [j] <= items [j + gap]) { + int swap = items [j]; + items [j] = items [j + gap]; + items [j + gap] = swap; + } + } + } + } +} + +void subclass () { + int oldProc = windowProc (); + int newProc = display.windowProc; + if (oldProc is newProc) return; + OS.SetWindowLong (handle, OS.GWL_WNDPROC, newProc); +} + +/** + * Returns a point which is the result of converting the + * argument, which is specified in display relative coordinates, + * to coordinates relative to the receiver. + * <p> + * @param x the x coordinate to be translated + * @param y the y coordinate to be translated + * @return the translated coordinates + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1 + */ +public Point toControl (int x, int y) { + checkWidget (); + POINT pt = new POINT (); + pt.x = x; pt.y = y; + OS.ScreenToClient (handle, pt); + return new Point (pt.x, pt.y); +} + +/** + * Returns a point which is the result of converting the + * argument, which is specified in display relative coordinates, + * to coordinates relative to the receiver. + * <p> + * @param point the point to be translated (must not be null) + * @return the translated coordinates + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point toControl (Point point) { + checkWidget (); + if (point is null) error (DWT.ERROR_NULL_ARGUMENT); + return toControl (point.x, point.y); +} + +/** + * Returns a point which is the result of converting the + * argument, which is specified in coordinates relative to + * the receiver, to display relative coordinates. + * <p> + * @param x the x coordinate to be translated + * @param y the y coordinate to be translated + * @return the translated coordinates + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1 + */ +public Point toDisplay (int x, int y) { + checkWidget (); + POINT pt = new POINT (); + pt.x = x; pt.y = y; + OS.ClientToScreen (handle, pt); + return new Point (pt.x, pt.y); +} + +/** + * Returns a point which is the result of converting the + * argument, which is specified in coordinates relative to + * the receiver, to display relative coordinates. + * <p> + * @param point the point to be translated (must not be null) + * @return the translated coordinates + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point toDisplay (Point point) { + checkWidget (); + if (point is null) error (DWT.ERROR_NULL_ARGUMENT); + return toDisplay (point.x, point.y); +} + +int topHandle () { + return handle; +} + +bool translateAccelerator (MSG msg) { + return menuShell ().translateAccelerator (msg); +} + +bool translateMnemonic (Event event, Control control) { + if (control is this) return false; + if (!isVisible () || !isEnabled ()) return false; + event.doit = mnemonicMatch (event.character); + return traverse (event); +} + +bool translateMnemonic (MSG msg) { + if (msg.wParam < 0x20) return false; + int hwnd = msg.hwnd; + if (OS.GetKeyState (OS.VK_MENU) >= 0) { + int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0); + if ((code & OS.DLGC_WANTALLKEYS) !is 0) return false; + if ((code & OS.DLGC_BUTTON) is 0) return false; + } + Decorations shell = menuShell (); + if (shell.isVisible () && shell.isEnabled ()) { + display.lastAscii = msg.wParam; + display.lastNull = display.lastDead = false; + Event event = new Event (); + event.detail = DWT.TRAVERSE_MNEMONIC; + if (setKeyState (event, DWT.Traverse, msg.wParam, msg.lParam)) { + return translateMnemonic (event, null) || shell.translateMnemonic (event, this); + } + } + return false; +} + +bool translateTraversal (MSG msg) { + int hwnd = msg.hwnd; + int key = msg.wParam; + if (key is OS.VK_MENU) { + OS.SendMessage (hwnd, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); + return false; + } + int detail = DWT.TRAVERSE_NONE; + bool doit = true, all = false; + bool lastVirtual = false; + int lastKey = key, lastAscii = 0; + switch (key) { + case OS.VK_ESCAPE: { + all = true; + lastAscii = 27; + int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0); + if ((code & OS.DLGC_WANTALLKEYS) !is 0) { + /* + * Use DLGC_HASSETSEL to determine that the control + * is a text widget. A text widget normally wants + * all keys except VK_ESCAPE. If this bit is not + * set, then assume the control wants all keys, + * including VK_ESCAPE. + */ + if ((code & OS.DLGC_HASSETSEL) is 0) doit = false; + } + detail = DWT.TRAVERSE_ESCAPE; + break; + } + case OS.VK_RETURN: { + all = true; + lastAscii = '\r'; + int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0); + if ((code & OS.DLGC_WANTALLKEYS) !is 0) doit = false; + detail = DWT.TRAVERSE_RETURN; + break; + } + case OS.VK_TAB: { + lastAscii = '\t'; + bool next = OS.GetKeyState (OS.VK_SHIFT) >= 0; + int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0); + if ((code & (OS.DLGC_WANTTAB | OS.DLGC_WANTALLKEYS)) !is 0) { + /* + * Use DLGC_HASSETSEL to determine that the control is a + * text widget. If the control is a text widget, then + * Ctrl+Tab and Shift+Tab should traverse out of the widget. + * If the control is not a text widget, the correct behavior + * is to give every character, including Tab, Ctrl+Tab and + * Shift+Tab to the control. + */ + if ((code & OS.DLGC_HASSETSEL) !is 0) { + if (next && OS.GetKeyState (OS.VK_CONTROL) >= 0) { + doit = false; + } + } else { + doit = false; + } + } + if (parent !is null && (parent.style & DWT.MIRRORED) !is 0) { + if (key is OS.VK_LEFT || key is OS.VK_RIGHT) next = !next; + } + detail = next ? DWT.TRAVERSE_TAB_NEXT : DWT.TRAVERSE_TAB_PREVIOUS; + break; + } + case OS.VK_UP: + case OS.VK_LEFT: + case OS.VK_DOWN: + case OS.VK_RIGHT: { + /* + * On WinCE SP there is no tab key. Focus is assigned + * using the VK_UP and VK_DOWN keys, not with VK_LEFT + * or VK_RIGHT. + */ + if (OS.IsSP) { + if (key is OS.VK_LEFT || key is OS.VK_RIGHT) return false; + } + lastVirtual = true; + int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0); + if ((code & (OS.DLGC_WANTARROWS /*| OS.DLGC_WANTALLKEYS*/)) !is 0) doit = false; + bool next = key is OS.VK_DOWN || key is OS.VK_RIGHT; + detail = next ? DWT.TRAVERSE_ARROW_NEXT : DWT.TRAVERSE_ARROW_PREVIOUS; + break; + } + case OS.VK_PRIOR: + case OS.VK_NEXT: { + all = true; + lastVirtual = true; + if (OS.GetKeyState (OS.VK_CONTROL) >= 0) return false; + int code = OS.SendMessage (hwnd, OS.WM_GETDLGCODE, 0, 0); + if ((code & OS.DLGC_WANTALLKEYS) !is 0) { + /* + * Use DLGC_HASSETSEL to determine that the control is a + * text widget. If the control is a text widget, then + * Ctrl+PgUp and Ctrl+PgDn should traverse out of the widget. + */ + if ((code & OS.DLGC_HASSETSEL) is 0) doit = false; + } + detail = key is OS.VK_PRIOR ? DWT.TRAVERSE_PAGE_PREVIOUS : DWT.TRAVERSE_PAGE_NEXT; + break; + } + default: + return false; + } + Event event = new Event (); + event.doit = doit; + event.detail = detail; + display.lastKey = lastKey; + display.lastAscii = lastAscii; + display.lastVirtual = lastVirtual; + display.lastNull = display.lastDead = false; + if (!setKeyState (event, DWT.Traverse, msg.wParam, msg.lParam)) return false; + Shell shell = getShell (); + Control control = this; + do { + if (control.traverse (event)) { + OS.SendMessage (hwnd, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); + return true; + } + if (!event.doit && control.hooks (DWT.Traverse)) return false; + if (control is shell) return false; + control = control.parent; + } while (all && control !is null); + return false; +} + +bool traverse (Event event) { + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the traverse + * event. If this happens, return true to stop further + * event processing. + */ + sendEvent (DWT.Traverse, event); + if (isDisposed ()) return true; + if (!event.doit) return false; + switch (event.detail) { + case DWT.TRAVERSE_NONE: return true; + case DWT.TRAVERSE_ESCAPE: return traverseEscape (); + case DWT.TRAVERSE_RETURN: return traverseReturn (); + case DWT.TRAVERSE_TAB_NEXT: return traverseGroup (true); + case DWT.TRAVERSE_TAB_PREVIOUS: return traverseGroup (false); + case DWT.TRAVERSE_ARROW_NEXT: return traverseItem (true); + case DWT.TRAVERSE_ARROW_PREVIOUS: return traverseItem (false); + case DWT.TRAVERSE_MNEMONIC: return traverseMnemonic (event.character); + case DWT.TRAVERSE_PAGE_NEXT: return traversePage (true); + case DWT.TRAVERSE_PAGE_PREVIOUS: return traversePage (false); + } + return false; +} + +/** + * Based on the argument, perform one of the expected platform + * traversal action. The argument should be one of the constants: + * <code>DWT.TRAVERSE_ESCAPE</code>, <code>DWT.TRAVERSE_RETURN</code>, + * <code>DWT.TRAVERSE_TAB_NEXT</code>, <code>DWT.TRAVERSE_TAB_PREVIOUS</code>, + * <code>DWT.TRAVERSE_ARROW_NEXT</code> and <code>DWT.TRAVERSE_ARROW_PREVIOUS</code>. + * + * @param traversal the type of traversal + * @return true if the traversal succeeded + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool traverse (int traversal) { + checkWidget (); + Event event = new Event (); + event.doit = true; + event.detail = traversal; + return traverse (event); +} + +bool traverseEscape () { + return false; +} + +bool traverseGroup (bool next) { + Control root = computeTabRoot (); + Control group = computeTabGroup (); + Control [] list = root.computeTabList (); + int length = list.length; + int index = 0; + while (index < length) { + if (list [index] is group) break; + index++; + } + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in focus in + * or out events. Ensure that a disposed widget is + * not accessed. + */ + if (index is length) return false; + int start = index, offset = (next) ? 1 : -1; + while ((index = ((index + offset + length) % length)) !is start) { + Control control = list [index]; + if (!control.isDisposed () && control.setTabGroupFocus ()) { + return true; + } + } + if (group.isDisposed ()) return false; + return group.setTabGroupFocus (); +} + +bool traverseItem (bool next) { + Control [] children = parent._getChildren (); + int length = children.length; + int index = 0; + while (index < length) { + if (children [index] is this) break; + index++; + } + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in focus in + * or out events. Ensure that a disposed widget is + * not accessed. + */ + if (index is length) return false; + int start = index, offset = (next) ? 1 : -1; + while ((index = (index + offset + length) % length) !is start) { + Control child = children [index]; + if (!child.isDisposed () && child.isTabItem ()) { + if (child.setTabItemFocus ()) return true; + } + } + return false; +} + +bool traverseMnemonic (char key) { + if (mnemonicHit (key)) { + OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); + return true; + } + return false; +} + +bool traversePage (bool next) { + return false; +} + +bool traverseReturn () { + return false; +} + +void unsubclass () { + int newProc = windowProc (); + int oldProc = display.windowProc; + if (oldProc is newProc) return; + OS.SetWindowLong (handle, OS.GWL_WNDPROC, newProc); +} + +/** + * Forces all outstanding paint requests for the widget + * to be processed before this method returns. If there + * are no outstanding paint request, this method does + * nothing. + * <p> + * Note: This method does not cause a redraw. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #redraw() + * @see #redraw(int, int, int, int, bool) + * @see PaintListener + * @see DWT#Paint + */ +public void update () { + checkWidget (); + update (false); +} + +void update (bool all) { +// checkWidget (); + if (OS.IsWinCE) { + OS.UpdateWindow (handle); + } else { + int flags = OS.RDW_UPDATENOW; + if (all) flags |= OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } +} + +void updateBackgroundColor () { + Control control = findBackgroundControl (); + if (control is null) control = this; + setBackgroundPixel (control.background); +} + +void updateBackgroundImage () { + Control control = findBackgroundControl (); + Image image = control !is null ? control.backgroundImage : backgroundImage; + setBackgroundImage (image !is null ? image.handle : 0); +} + +void updateBackgroundMode () { + int oldState = state & PARENT_BACKGROUND; + checkBackground (); + if (oldState !is (state & PARENT_BACKGROUND)) { + setBackground (); + } +} + +void updateFont (Font oldFont, Font newFont) { + if (getFont ().equals (oldFont)) setFont (newFont); +} + +void updateImages () { + /* Do nothing */ +} + +void updateLayout (bool resize, bool all) { + /* Do nothing */ +} + +CREATESTRUCT widgetCreateStruct () { + return null; +} + +int widgetExtStyle () { + int bits = 0; + if (!OS.IsPPC) { + if ((style & DWT.BORDER) !is 0) bits |= OS.WS_EX_CLIENTEDGE; + } +// if ((style & DWT.BORDER) !is 0) { +// if ((style & DWT.FLAT) is 0) bits |= OS.WS_EX_CLIENTEDGE; +// } + /* + * Feature in Windows NT. When CreateWindowEx() is called with + * WS_EX_LAYOUTRTL or WS_EX_NOINHERITLAYOUT, CreateWindowEx() + * fails to create the HWND. The fix is to not use these bits. + */ + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) { + return bits; + } + bits |= OS.WS_EX_NOINHERITLAYOUT; + if ((style & DWT.RIGHT_TO_LEFT) !is 0) bits |= OS.WS_EX_LAYOUTRTL; + return bits; +} + +int widgetParent () { + return parent.handle; +} + +int widgetStyle () { + /* Force clipping of siblings by setting WS_CLIPSIBLINGS */ + int bits = OS.WS_CHILD | OS.WS_VISIBLE | OS.WS_CLIPSIBLINGS; +// if ((style & DWT.BORDER) !is 0) { +// if ((style & DWT.FLAT) !is 0) bits |= OS.WS_BORDER; +// } + if (OS.IsPPC) { + if ((style & DWT.BORDER) !is 0) bits |= OS.WS_BORDER; + } + return bits; + + /* + * This code is intentionally commented. When clipping + * of both siblings and children is not enforced, it is + * possible for application code to draw outside of the + * control. + */ +// int bits = OS.WS_CHILD | OS.WS_VISIBLE; +// if ((style & DWT.CLIP_SIBLINGS) !is 0) bits |= OS.WS_CLIPSIBLINGS; +// if ((style & DWT.CLIP_CHILDREN) !is 0) bits |= OS.WS_CLIPCHILDREN; +// return bits; +} + +/** + * Changes the parent of the widget to be the one provided if + * the underlying operating system supports this feature. + * Returns <code>true</code> if the parent is successfully changed. + * + * @param parent the new parent for the control. + * @return <code>true</code> if the parent is changed and <code>false</code> otherwise. + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * <li>ERROR_NULL_ARGUMENT - if the parent is <code>null</code></li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool setParent (Composite parent) { + checkWidget (); + if (parent is null) error (DWT.ERROR_NULL_ARGUMENT); + if (parent.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); + if (this.parent is parent) return true; + if (!isReparentable ()) return false; + releaseParent (); + Shell newShell = parent.getShell (), oldShell = getShell (); + Decorations newDecorations = parent.menuShell (), oldDecorations = menuShell (); + if (oldShell !is newShell || oldDecorations !is newDecorations) { + Menu [] menus = oldShell.findMenus (this); + fixChildren (newShell, oldShell, newDecorations, oldDecorations, menus); + } + int topHandle = topHandle (); + if (OS.SetParent (topHandle, parent.handle) is 0) return false; + this.parent = parent; + int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; + SetWindowPos (topHandle, OS.HWND_BOTTOM, 0, 0, 0, 0, flags); + return true; +} + +abstract TCHAR windowClass (); + +abstract int windowProc (); + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + LRESULT result = null; + switch (msg) { + case OS.WM_ACTIVATE: result = WM_ACTIVATE (wParam, lParam); break; + case OS.WM_CAPTURECHANGED: result = WM_CAPTURECHANGED (wParam, lParam); break; + case OS.WM_CHAR: result = WM_CHAR (wParam, lParam); break; + case OS.WM_CLEAR: result = WM_CLEAR (wParam, lParam); break; + case OS.WM_CLOSE: result = WM_CLOSE (wParam, lParam); break; + case OS.WM_COMMAND: result = WM_COMMAND (wParam, lParam); break; + case OS.WM_CONTEXTMENU: result = WM_CONTEXTMENU (wParam, lParam); break; + case OS.WM_CTLCOLORBTN: + case OS.WM_CTLCOLORDLG: + case OS.WM_CTLCOLOREDIT: + case OS.WM_CTLCOLORLISTBOX: + case OS.WM_CTLCOLORMSGBOX: + case OS.WM_CTLCOLORSCROLLBAR: + case OS.WM_CTLCOLORSTATIC: result = WM_CTLCOLOR (wParam, lParam); break; + case OS.WM_CUT: result = WM_CUT (wParam, lParam); break; + case OS.WM_DESTROY: result = WM_DESTROY (wParam, lParam); break; + case OS.WM_DRAWITEM: result = WM_DRAWITEM (wParam, lParam); break; + case OS.WM_ENDSESSION: result = WM_ENDSESSION (wParam, lParam); break; + case OS.WM_ENTERIDLE: result = WM_ENTERIDLE (wParam, lParam); break; + case OS.WM_ERASEBKGND: result = WM_ERASEBKGND (wParam, lParam); break; + case OS.WM_GETDLGCODE: result = WM_GETDLGCODE (wParam, lParam); break; + case OS.WM_GETFONT: result = WM_GETFONT (wParam, lParam); break; + case OS.WM_GETOBJECT: result = WM_GETOBJECT (wParam, lParam); break; + case OS.WM_GETMINMAXINFO: result = WM_GETMINMAXINFO (wParam, lParam); break; + case OS.WM_HELP: result = WM_HELP (wParam, lParam); break; + case OS.WM_HSCROLL: result = WM_HSCROLL (wParam, lParam); break; + case OS.WM_IME_CHAR: result = WM_IME_CHAR (wParam, lParam); break; + case OS.WM_IME_COMPOSITION: result = WM_IME_COMPOSITION (wParam, lParam); break; + case OS.WM_INITMENUPOPUP: result = WM_INITMENUPOPUP (wParam, lParam); break; + case OS.WM_INPUTLANGCHANGE: result = WM_INPUTLANGCHANGE (wParam, lParam); break; + case OS.WM_HOTKEY: result = WM_HOTKEY (wParam, lParam); break; + case OS.WM_KEYDOWN: result = WM_KEYDOWN (wParam, lParam); break; + case OS.WM_KEYUP: result = WM_KEYUP (wParam, lParam); break; + case OS.WM_KILLFOCUS: result = WM_KILLFOCUS (wParam, lParam); break; + case OS.WM_LBUTTONDBLCLK: result = WM_LBUTTONDBLCLK (wParam, lParam); break; + case OS.WM_LBUTTONDOWN: result = WM_LBUTTONDOWN (wParam, lParam); break; + case OS.WM_LBUTTONUP: result = WM_LBUTTONUP (wParam, lParam); break; + case OS.WM_MBUTTONDBLCLK: result = WM_MBUTTONDBLCLK (wParam, lParam); break; + case OS.WM_MBUTTONDOWN: result = WM_MBUTTONDOWN (wParam, lParam); break; + case OS.WM_MBUTTONUP: result = WM_MBUTTONUP (wParam, lParam); break; + case OS.WM_MEASUREITEM: result = WM_MEASUREITEM (wParam, lParam); break; + case OS.WM_MENUCHAR: result = WM_MENUCHAR (wParam, lParam); break; + case OS.WM_MENUSELECT: result = WM_MENUSELECT (wParam, lParam); break; + case OS.WM_MOUSEACTIVATE: result = WM_MOUSEACTIVATE (wParam, lParam); break; + case OS.WM_MOUSEHOVER: result = WM_MOUSEHOVER (wParam, lParam); break; + case OS.WM_MOUSELEAVE: result = WM_MOUSELEAVE (wParam, lParam); break; + case OS.WM_MOUSEMOVE: result = WM_MOUSEMOVE (wParam, lParam); break; + case OS.WM_MOUSEWHEEL: result = WM_MOUSEWHEEL (wParam, lParam); break; + case OS.WM_MOVE: result = WM_MOVE (wParam, lParam); break; + case OS.WM_NCACTIVATE: result = WM_NCACTIVATE (wParam, lParam); break; + case OS.WM_NCCALCSIZE: result = WM_NCCALCSIZE (wParam, lParam); break; + case OS.WM_NCHITTEST: result = WM_NCHITTEST (wParam, lParam); break; + case OS.WM_NCLBUTTONDOWN: result = WM_NCLBUTTONDOWN (wParam, lParam); break; + case OS.WM_NCPAINT: result = WM_NCPAINT (wParam, lParam); break; + case OS.WM_NOTIFY: result = WM_NOTIFY (wParam, lParam); break; + case OS.WM_PAINT: result = WM_PAINT (wParam, lParam); break; + case OS.WM_PALETTECHANGED: result = WM_PALETTECHANGED (wParam, lParam); break; + case OS.WM_PARENTNOTIFY: result = WM_PARENTNOTIFY (wParam, lParam); break; + case OS.WM_PASTE: result = WM_PASTE (wParam, lParam); break; + case OS.WM_PRINT: result = WM_PRINT (wParam, lParam); break; + case OS.WM_PRINTCLIENT: result = WM_PRINTCLIENT (wParam, lParam); break; + case OS.WM_QUERYENDSESSION: result = WM_QUERYENDSESSION (wParam, lParam); break; + case OS.WM_QUERYNEWPALETTE: result = WM_QUERYNEWPALETTE (wParam, lParam); break; + case OS.WM_QUERYOPEN: result = WM_QUERYOPEN (wParam, lParam); break; + case OS.WM_RBUTTONDBLCLK: result = WM_RBUTTONDBLCLK (wParam, lParam); break; + case OS.WM_RBUTTONDOWN: result = WM_RBUTTONDOWN (wParam, lParam); break; + case OS.WM_RBUTTONUP: result = WM_RBUTTONUP (wParam, lParam); break; + case OS.WM_SETCURSOR: result = WM_SETCURSOR (wParam, lParam); break; + case OS.WM_SETFOCUS: result = WM_SETFOCUS (wParam, lParam); break; + case OS.WM_SETFONT: result = WM_SETFONT (wParam, lParam); break; + case OS.WM_SETTINGCHANGE: result = WM_SETTINGCHANGE (wParam, lParam); break; + case OS.WM_SETREDRAW: result = WM_SETREDRAW (wParam, lParam); break; + case OS.WM_SHOWWINDOW: result = WM_SHOWWINDOW (wParam, lParam); break; + case OS.WM_SIZE: result = WM_SIZE (wParam, lParam); break; + case OS.WM_SYSCHAR: result = WM_SYSCHAR (wParam, lParam); break; + case OS.WM_SYSCOLORCHANGE: result = WM_SYSCOLORCHANGE (wParam, lParam); break; + case OS.WM_SYSCOMMAND: result = WM_SYSCOMMAND (wParam, lParam); break; + case OS.WM_SYSKEYDOWN: result = WM_SYSKEYDOWN (wParam, lParam); break; + case OS.WM_SYSKEYUP: result = WM_SYSKEYUP (wParam, lParam); break; + case OS.WM_TIMER: result = WM_TIMER (wParam, lParam); break; + case OS.WM_UNDO: result = WM_UNDO (wParam, lParam); break; + case OS.WM_UPDATEUISTATE: result = WM_UPDATEUISTATE (wParam, lParam); break; + case OS.WM_VSCROLL: result = WM_VSCROLL (wParam, lParam); break; + case OS.WM_WINDOWPOSCHANGED: result = WM_WINDOWPOSCHANGED (wParam, lParam); break; + case OS.WM_WINDOWPOSCHANGING: result = WM_WINDOWPOSCHANGING (wParam, lParam); break; + case OS.WM_XBUTTONDBLCLK: result = WM_XBUTTONDBLCLK (wParam, lParam); break; + case OS.WM_XBUTTONDOWN: result = WM_XBUTTONDOWN (wParam, lParam); break; + case OS.WM_XBUTTONUP: result = WM_XBUTTONUP (wParam, lParam); break; + } + if (result !is null) return result.value; + return callWindowProc (hwnd, msg, wParam, lParam); +} + +LRESULT WM_ACTIVATE (int wParam, int lParam) { + return null; +} + +LRESULT WM_CAPTURECHANGED (int wParam, int lParam) { + return wmCaptureChanged (handle, wParam, lParam); +} + +LRESULT WM_CHAR (int wParam, int lParam) { + return wmChar (handle, wParam, lParam); +} + +LRESULT WM_CLEAR (int wParam, int lParam) { + return null; +} + +LRESULT WM_CLOSE (int wParam, int lParam) { + return null; +} + +LRESULT WM_COMMAND (int wParam, int lParam) { + /* + * When the WM_COMMAND message is sent from a + * menu, the HWND parameter in LPARAM is zero. + */ + if (lParam is 0) { + Decorations shell = menuShell (); + if (shell.isEnabled ()) { + int id = wParam & 0xFFFF; + MenuItem item = display.getMenuItem (id); + if (item !is null && item.isEnabled ()) { + return item.wmCommandChild (wParam, lParam); + } + } + return null; + } + Control control = display.getControl (lParam); + if (control is null) return null; + return control.wmCommandChild (wParam, lParam); +} + +LRESULT WM_CONTEXTMENU (int wParam, int lParam) { + return wmContextMenu (handle, wParam, lParam); +} + +LRESULT WM_CTLCOLOR (int wParam, int lParam) { + int hPalette = display.hPalette; + if (hPalette !is 0) { + OS.SelectPalette (wParam, hPalette, false); + OS.RealizePalette (wParam); + } + Control control = display.getControl (lParam); + if (control is null) return null; + return control.wmColorChild (wParam, lParam); +} + +LRESULT WM_CUT (int wParam, int lParam) { + return null; +} + +LRESULT WM_DESTROY (int wParam, int lParam) { + return null; +} + +LRESULT WM_DRAWITEM (int wParam, int lParam) { + DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT (); + OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof); + if (struct.CtlType is OS.ODT_MENU) { + MenuItem item = display.getMenuItem (struct.itemID); + if (item is null) return null; + return item.wmDrawChild (wParam, lParam); + } + Control control = display.getControl (struct.hwndItem); + if (control is null) return null; + return control.wmDrawChild (wParam, lParam); +} + +LRESULT WM_ENDSESSION (int wParam, int lParam) { + return null; +} + +LRESULT WM_ENTERIDLE (int wParam, int lParam) { + return null; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + if ((state & DRAW_BACKGROUND) !is 0) { + if (findImageControl () !is null) return LRESULT.ONE; + } + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (findThemeControl () !is null) return LRESULT.ONE; + } + } + return null; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + return null; +} + +LRESULT WM_GETFONT (int wParam, int lParam) { + return null; +} + +LRESULT WM_GETOBJECT (int wParam, int lParam) { + if (accessible !is null) { + int result = accessible.internal_WM_GETOBJECT (wParam, lParam); + if (result !is 0) return new LRESULT (result); + } + return null; +} + +LRESULT WM_GETMINMAXINFO (int wParam, int lParam) { + return null; +} + +LRESULT WM_HOTKEY (int wParam, int lParam) { + return null; +} + +LRESULT WM_HELP (int wParam, int lParam) { + if (OS.IsWinCE) return null; + HELPINFO lphi = new HELPINFO (); + OS.MoveMemory (lphi, lParam, HELPINFO.sizeof); + Decorations shell = menuShell (); + if (!shell.isEnabled ()) return null; + if (lphi.iContextType is OS.HELPINFO_MENUITEM) { + MenuItem item = display.getMenuItem (lphi.iCtrlId); + if (item !is null && item.isEnabled ()) { + Widget widget = null; + if (item.hooks (DWT.Help)) { + widget = item; + } else { + Menu menu = item.parent; + if (menu.hooks (DWT.Help)) widget = menu; + } + if (widget !is null) { + int hwndShell = shell.handle; + OS.SendMessage (hwndShell, OS.WM_CANCELMODE, 0, 0); + widget.postEvent (DWT.Help); + return LRESULT.ONE; + } + } + return null; + } + if (hooks (DWT.Help)) { + postEvent (DWT.Help); + return LRESULT.ONE; + } + return null; +} + +LRESULT WM_HSCROLL (int wParam, int lParam) { + Control control = display.getControl (lParam); + if (control is null) return null; + return control.wmScrollChild (wParam, lParam); +} + +LRESULT WM_IME_CHAR (int wParam, int lParam) { + return wmIMEChar (handle, wParam, lParam); +} + +LRESULT WM_IME_COMPOSITION (int wParam, int lParam) { + return null; +} + +LRESULT WM_INITMENUPOPUP (int wParam, int lParam) { + + /* Ignore WM_INITMENUPOPUP for an accelerator */ + if (display.accelKeyHit) return null; + + /* + * If the high order word of LPARAM is non-zero, + * the menu is the system menu and we can ignore + * WPARAM. Otherwise, use WPARAM to find the menu. + */ + Shell shell = getShell (); + Menu oldMenu = shell.activeMenu, newMenu = null; + if ((lParam >> 16) is 0) { + newMenu = menuShell ().findMenu (wParam); + if (newMenu !is null) newMenu.update (); + } + Menu menu = newMenu; + while (menu !is null && menu !is oldMenu) { + menu = menu.getParentMenu (); + } + if (menu is null) { + menu = shell.activeMenu; + while (menu !is null) { + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the hide + * event. If this happens, stop searching up the + * ancestor list because there is no longer a link + * to follow. + */ + menu.sendEvent (DWT.Hide); + if (menu.isDisposed ()) break; + menu = menu.getParentMenu (); + Menu ancestor = newMenu; + while (ancestor !is null && ancestor !is menu) { + ancestor = ancestor.getParentMenu (); + } + if (ancestor !is null) break; + } + } + + /* + * The shell and the new menu may be disposed because of + * sending the hide event to the ancestor menus but setting + * a field to null in a disposed shell is not harmful. + */ + if (newMenu !is null && newMenu.isDisposed ()) newMenu = null; + shell.activeMenu = newMenu; + + /* Send the show event */ + if (newMenu !is null && newMenu !is oldMenu) { + newMenu.sendEvent (DWT.Show); + // widget could be disposed at this point + } + return null; +} + +LRESULT WM_INPUTLANGCHANGE (int wParam, int lParam) { + return null; +} + +LRESULT WM_KEYDOWN (int wParam, int lParam) { + return wmKeyDown (handle, wParam, lParam); +} + +LRESULT WM_KEYUP (int wParam, int lParam) { + return wmKeyUp (handle, wParam, lParam); +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + return wmKillFocus (handle, wParam, lParam); +} + +LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) { + return wmLButtonDblClk (handle, wParam, lParam); +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + return wmLButtonDown (handle, wParam, lParam); +} + +LRESULT WM_LBUTTONUP (int wParam, int lParam) { + return wmLButtonUp (handle, wParam, lParam); +} + +LRESULT WM_MBUTTONDBLCLK (int wParam, int lParam) { + return wmMButtonDblClk (handle, wParam, lParam); +} + +LRESULT WM_MBUTTONDOWN (int wParam, int lParam) { + return wmMButtonDown (handle, wParam, lParam); +} + +LRESULT WM_MBUTTONUP (int wParam, int lParam) { + return wmMButtonUp (handle, wParam, lParam); +} + +LRESULT WM_MEASUREITEM (int wParam, int lParam) { + MEASUREITEMSTRUCT struct = new MEASUREITEMSTRUCT (); + OS.MoveMemory (struct, lParam, MEASUREITEMSTRUCT.sizeof); + if (struct.CtlType is OS.ODT_MENU) { + MenuItem item = display.getMenuItem (struct.itemID); + if (item is null) return null; + return item.wmMeasureChild (wParam, lParam); + } + int hwnd = OS.GetDlgItem (handle, struct.CtlID); + Control control = display.getControl (hwnd); + if (control is null) return null; + return control.wmMeasureChild (wParam, lParam); +} + +LRESULT WM_MENUCHAR (int wParam, int lParam) { + /* + * Feature in Windows. When the user types Alt+<key> + * and <key> does not match a mnemonic in the System + * menu or the menu bar, Windows beeps. This beep is + * unexpected and unwanted by applications that look + * for Alt+<key>. The fix is to detect the case and + * stop Windows from beeping by closing the menu. + */ + int type = wParam >> 16; + if (type is 0 || type is OS.MF_SYSMENU) { + display.mnemonicKeyHit = false; + return new LRESULT (OS.MNC_CLOSE << 16); + } + return null; +} + +LRESULT WM_MENUSELECT (int wParam, int lParam) { + int code = wParam >> 16; + Shell shell = getShell (); + if (code is -1 && lParam is 0) { + Menu menu = shell.activeMenu; + while (menu !is null) { + /* + * When the user cancels any menu that is not the + * menu bar, assume a mnemonic key was pressed to open + * the menu from WM_SYSCHAR. When the menu was invoked + * using the mouse, this assumption is wrong but not + * harmful. This variable is only used in WM_SYSCHAR + * and WM_SYSCHAR is only sent after the user has pressed + * a mnemonic. + */ + display.mnemonicKeyHit = true; + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the hide + * event. If this happens, stop searching up the + * parent list because there is no longer a link + * to follow. + */ + menu.sendEvent (DWT.Hide); + if (menu.isDisposed ()) break; + menu = menu.getParentMenu (); + } + /* + * The shell may be disposed because of sending the hide + * event to the last active menu menu but setting a field + * to null in a destroyed widget is not harmful. + */ + shell.activeMenu = null; + return null; + } + if ((code & OS.MF_SYSMENU) !is 0) return null; + if ((code & OS.MF_HILITE) !is 0) { + MenuItem item = null; + Decorations menuShell = menuShell (); + if ((code & OS.MF_POPUP) !is 0) { + int index = wParam & 0xFFFF; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_SUBMENU; + if (OS.GetMenuItemInfo (lParam, index, true, info)) { + Menu newMenu = menuShell.findMenu (info.hSubMenu); + if (newMenu !is null) item = newMenu.cascade; + } + } else { + Menu newMenu = menuShell.findMenu (lParam); + if (newMenu !is null) { + int id = wParam & 0xFFFF; + item = display.getMenuItem (id); + } + Menu oldMenu = shell.activeMenu; + if (oldMenu !is null) { + Menu ancestor = oldMenu; + while (ancestor !is null && ancestor !is newMenu) { + ancestor = ancestor.getParentMenu (); + } + if (ancestor is newMenu) { + ancestor = oldMenu; + while (ancestor !is newMenu) { + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the hide + * event or the item about to be armed. If this + * happens, stop searching up the ancestor list + * because there is no longer a link to follow. + */ + ancestor.sendEvent (DWT.Hide); + if (ancestor.isDisposed ()) break; + ancestor = ancestor.getParentMenu (); + } + /* + * The shell and/or the item could be disposed when + * processing hide events from above. If this happens, + * ensure that the shell is not accessed and that no + * arm event is sent to the item. + */ + if (!shell.isDisposed ()) { + if (newMenu !is null && newMenu.isDisposed ()) { + newMenu = null; + } + shell.activeMenu = newMenu; + } + if (item !is null && item.isDisposed ()) item = null; + } + } + } + if (item !is null) item.sendEvent (DWT.Arm); + } + return null; +} + +LRESULT WM_MOUSEACTIVATE (int wParam, int lParam) { + return null; +} + +LRESULT WM_MOUSEHOVER (int wParam, int lParam) { + return wmMouseHover (handle, wParam, lParam); +} + +LRESULT WM_MOUSELEAVE (int wParam, int lParam) { + if (OS.COMCTL32_MAJOR >= 6) getShell ().fixToolTip (); + return wmMouseLeave (handle, wParam, lParam); +} + +LRESULT WM_MOUSEMOVE (int wParam, int lParam) { + return wmMouseMove (handle, wParam, lParam); +} + +LRESULT WM_MOUSEWHEEL (int wParam, int lParam) { + return wmMouseWheel (handle, wParam, lParam); +} + +LRESULT WM_MOVE (int wParam, int lParam) { + if (findImageControl () !is null) { + if (this !is getShell ()) redrawChildren (); + } else { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (OS.IsWindowVisible (handle)) { + if (findThemeControl () !is null) redrawChildren (); + } + } + } + } + sendEvent (DWT.Move); + // widget could be disposed at this point + return null; +} + +LRESULT WM_NCACTIVATE (int wParam, int lParam) { + return null; +} + +LRESULT WM_NCCALCSIZE (int wParam, int lParam) { + return null; +} + +LRESULT WM_NCHITTEST (int wParam, int lParam) { + if (!OS.IsWindowEnabled (handle)) return null; + if (!isActive ()) return new LRESULT (OS.HTTRANSPARENT); + return null; +} + +LRESULT WM_NCLBUTTONDOWN (int wParam, int lParam) { + return null; +} + +LRESULT WM_NCPAINT (int wParam, int lParam) { + return null; +} + +LRESULT WM_NOTIFY (int wParam, int lParam) { + NMHDR hdr = new NMHDR (); + OS.MoveMemory (hdr, lParam, NMHDR.sizeof); + return wmNotify (hdr, wParam, lParam); +} + +LRESULT WM_PAINT (int wParam, int lParam) { + return super.wmPaint (handle, wParam, lParam); +} + +LRESULT WM_PALETTECHANGED (int wParam, int lParam) { + return null; +} + +LRESULT WM_PARENTNOTIFY (int wParam, int lParam) { + return null; +} + +LRESULT WM_PASTE (int wParam, int lParam) { + return null; +} + +LRESULT WM_PRINT (int wParam, int lParam) { + return wmPrint (handle, wParam, lParam); +} + +LRESULT WM_PRINTCLIENT (int wParam, int lParam) { + return null; +} + +LRESULT WM_QUERYENDSESSION (int wParam, int lParam) { + return null; +} + +LRESULT WM_QUERYNEWPALETTE (int wParam, int lParam) { + return null; +} + +LRESULT WM_QUERYOPEN (int wParam, int lParam) { + return null; +} + +LRESULT WM_RBUTTONDBLCLK (int wParam, int lParam) { + return wmRButtonDblClk (handle, wParam, lParam); +} + +LRESULT WM_RBUTTONDOWN (int wParam, int lParam) { + return wmRButtonDown (handle, wParam, lParam); +} + +LRESULT WM_RBUTTONUP (int wParam, int lParam) { + return wmRButtonUp (handle, wParam, lParam); +} + +LRESULT WM_SETCURSOR (int wParam, int lParam) { + int hitTest = (short) (lParam & 0xFFFF); + if (hitTest is OS.HTCLIENT) { + Control control = display.getControl (wParam); + if (control is null) return null; + Cursor cursor = control.findCursor (); + if (cursor !is null) { + OS.SetCursor (cursor.handle); + return LRESULT.ONE; + } + } + return null; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + return wmSetFocus (handle, wParam, lParam); +} + +LRESULT WM_SETTINGCHANGE (int wParam, int lParam) { + return null; +} + +LRESULT WM_SETFONT (int wParam, int lParam) { + return null; +} + +LRESULT WM_SETREDRAW (int wParam, int lParam) { + return null; +} + +LRESULT WM_SHOWWINDOW (int wParam, int lParam) { + return null; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + sendEvent (DWT.Resize); + // widget could be disposed at this point + return null; +} + +LRESULT WM_SYSCHAR (int wParam, int lParam) { + return wmSysChar (handle, wParam, lParam); +} + +LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) { + return null; +} + +LRESULT WM_SYSCOMMAND (int wParam, int lParam) { + /* + * Check to see if the command is a system command or + * a user menu item that was added to the System menu. + * When a user item is added to the System menu, + * WM_SYSCOMMAND must always return zero. + */ + if ((wParam & 0xF000) is 0) { + Decorations shell = menuShell (); + if (shell.isEnabled ()) { + MenuItem item = display.getMenuItem (wParam & 0xFFFF); + if (item !is null) item.wmCommandChild (wParam, lParam); + } + return LRESULT.ZERO; + } + + /* Process the System Command */ + int cmd = wParam & 0xFFF0; + switch (cmd) { + case OS.SC_CLOSE: + int hwndShell = menuShell ().handle; + int bits = OS.GetWindowLong (hwndShell, OS.GWL_STYLE); + if ((bits & OS.WS_SYSMENU) is 0) return LRESULT.ZERO; + break; + case OS.SC_KEYMENU: + /* + * When lParam is zero, one of F10, Shift+F10, Ctrl+F10 or + * Ctrl+Shift+F10 was pressed. If there is no menu bar and + * the focus control is interested in keystrokes, give the + * key to the focus control. Normally, F10 with no menu bar + * moves focus to the System menu but this can be achieved + * using Alt+Space. To allow the application to see F10, + * avoid running the default window proc. + * + * NOTE: When F10 is pressed, WM_SYSCOMMAND is sent to the + * shell, not the focus control. This is undocumented Windows + * behavior. + */ + if (lParam is 0) { + Decorations shell = menuShell (); + Menu menu = shell.getMenuBar (); + if (menu is null) { + Control control = display._getFocusControl (); + if (control !is null) { + if (control.hooks (DWT.KeyDown) || control.hooks (DWT.KeyUp)) { + display.mnemonicKeyHit = false; + return LRESULT.ZERO; + } + } + } + } else { + /* + * When lParam is not zero, Alt+<key> was pressed. If the + * application is interested in keystrokes and there is a + * menu bar, check to see whether the key that was pressed + * matches a mnemonic on the menu bar. Normally, Windows + * matches the first character of a menu item as well as + * matching the mnemonic character. To allow the application + * to see the keystrokes in this case, avoid running the default + * window proc. + * + * NOTE: When the user types Alt+Space, the System menu is + * activated. In this case the application should not see + * the keystroke. + */ + if (hooks (DWT.KeyDown) || hooks (DWT.KeyUp)) { + if (lParam !is ' ') { + Decorations shell = menuShell (); + Menu menu = shell.getMenuBar (); + if (menu !is null) { + char key = Display.mbcsToWcs (lParam); + if (key !is 0) { + key = Character.toUpperCase (key); + MenuItem [] items = menu.getItems (); + for (int i=0; i<items.length; i++) { + MenuItem item = items [i]; + String text = item.getText (); + char mnemonic = findMnemonic (text); + if (text.length () > 0 && mnemonic is 0) { + char ch = text.charAt (0); + if (Character.toUpperCase (ch) is key) { + display.mnemonicKeyHit = false; + return LRESULT.ZERO; + } + } + } + } + } else { + display.mnemonicKeyHit = false; + } + } + } + } + // FALL THROUGH + case OS.SC_HSCROLL: + case OS.SC_VSCROLL: + /* + * Do not allow keyboard traversal of the menu bar + * or scrolling when the shell is not enabled. + */ + Decorations shell = menuShell (); + if (!shell.isEnabled () || !shell.isActive ()) { + return LRESULT.ZERO; + } + break; + case OS.SC_MINIMIZE: + /* Save the focus widget when the shell is minimized */ + menuShell ().saveFocus (); + break; + } + return null; +} + +LRESULT WM_SYSKEYDOWN (int wParam, int lParam) { + return wmSysKeyDown (handle, wParam, lParam); +} + +LRESULT WM_SYSKEYUP (int wParam, int lParam) { + return wmSysKeyUp (handle, wParam, lParam); +} + +LRESULT WM_TIMER (int wParam, int lParam) { + return null; +} + +LRESULT WM_UNDO (int wParam, int lParam) { + return null; +} + +LRESULT WM_UPDATEUISTATE (int wParam, int lParam) { + return null; +} + +LRESULT WM_VSCROLL (int wParam, int lParam) { + Control control = display.getControl (lParam); + if (control is null) return null; + return control.wmScrollChild (wParam, lParam); +} + +LRESULT WM_WINDOWPOSCHANGED (int wParam, int lParam) { + return null; +} + +LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) { + /* + * Bug in Windows. When WM_SETREDRAW is used to turn off drawing + * for a control and the control is moved or resized, Windows does + * not redraw the area where the control once was in the parent. + * The fix is to detect this case and redraw the area. + */ + if (drawCount !is 0) { + Shell shell = getShell (); + if (shell !is this) { + WINDOWPOS lpwp = new WINDOWPOS (); + OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof); + if ((lpwp.flags & OS.SWP_NOMOVE) is 0 || (lpwp.flags & OS.SWP_NOSIZE) is 0) { + RECT rect = new RECT (); + OS.GetWindowRect (topHandle (), rect); + int hwndParent = parent is null ? 0 : parent.handle; + OS.MapWindowPoints (0, hwndParent, rect, 2); + OS.InvalidateRect (hwndParent, rect, true); + } + } + } + return null; +} + +LRESULT WM_XBUTTONDBLCLK (int wParam, int lParam) { + return wmXButtonDblClk (handle, wParam, lParam); +} + +LRESULT WM_XBUTTONDOWN (int wParam, int lParam) { + return wmXButtonDown (handle, wParam, lParam); +} + +LRESULT WM_XBUTTONUP (int wParam, int lParam) { + return wmXButtonUp (handle, wParam, lParam); +} + +LRESULT wmColorChild (int wParam, int lParam) { + Control control = findBackgroundControl (); + if (control is null) { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + control = findThemeControl (); + if (control !is null) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + OS.SetTextColor (wParam, getForegroundPixel ()); + OS.SetBkColor (wParam, getBackgroundPixel ()); + fillThemeBackground (wParam, control, rect); + OS.SetBkMode (wParam, OS.TRANSPARENT); + return new LRESULT (OS.GetStockObject (OS.NULL_BRUSH)); + } + } + } + if (foreground is -1) return null; + } + if (control is null) control = this; + int forePixel = getForegroundPixel (); + int backPixel = control.getBackgroundPixel (); + OS.SetTextColor (wParam, forePixel); + OS.SetBkColor (wParam, backPixel); + if (control.backgroundImage !is null) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + int hwnd = control.handle; + int hBitmap = control.backgroundImage.handle; + OS.MapWindowPoints (handle, hwnd, rect, 2); + POINT lpPoint = new POINT (); + OS.GetWindowOrgEx (wParam, lpPoint); + OS.SetBrushOrgEx (wParam, -rect.left - lpPoint.x, -rect.top - lpPoint.y, lpPoint); + int hBrush = findBrush (hBitmap, OS.BS_PATTERN); + if ((state & DRAW_BACKGROUND) !is 0) { + int hOldBrush = OS.SelectObject (wParam, hBrush); + OS.MapWindowPoints (hwnd, handle, rect, 2); + OS.PatBlt (wParam, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); + OS.SelectObject (wParam, hOldBrush); + } + OS.SetBkMode (wParam, OS.TRANSPARENT); + return new LRESULT (hBrush); + } + int hBrush = findBrush (backPixel, OS.BS_SOLID); + if ((state & DRAW_BACKGROUND) !is 0) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + int hOldBrush = OS.SelectObject (wParam, hBrush); + OS.PatBlt (wParam, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); + OS.SelectObject (wParam, hOldBrush); + } + return new LRESULT (hBrush); +} + +LRESULT wmCommandChild (int wParam, int lParam) { + return null; +} + +LRESULT wmDrawChild (int wParam, int lParam) { + return null; +} + +LRESULT wmMeasureChild (int wParam, int lParam) { + return null; +} + +LRESULT wmNotify (NMHDR hdr, int wParam, int lParam) { + Control control = display.getControl (hdr.hwndFrom); + if (control is null) return null; + return control.wmNotifyChild (hdr, wParam, lParam); +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + return null; +} + +LRESULT wmScrollChild (int wParam, int lParam) { + return null; +} + +} + +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/CoolBar.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1209 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.CoolBar; + +import dwt.widgets.Composite; + +class CoolBar : Composite { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.INITCOMMONCONTROLSEX; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MARGINS; +import dwt.internal.win32.NMCUSTOMDRAW; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.NMREBARCHEVRON; +import dwt.internal.win32.NMREBARCHILDSIZE; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.REBARBANDINFO; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class provide an area for dynamically + * positioning the items they contain. + * <p> + * The item children that may be added to instances of this class + * must be of type <code>CoolItem</code>. + * </p><p> + * Note that although this class is a subclass of <code>Composite</code>, + * it does not make sense to add <code>Control</code> children to it, + * or set a layout on it. + * </p><p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>FLAT, HORIZONTAL, VERTICAL</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * </p><p> + * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class CoolBar extends Composite { + CoolItem [] items; + CoolItem [] originalItems; + bool locked; + bool ignoreResize; + static final int ReBarProc; + static final TCHAR ReBarClass = new TCHAR (0, OS.REBARCLASSNAME, true); + static { + INITCOMMONCONTROLSEX icex = new INITCOMMONCONTROLSEX (); + icex.dwSize = INITCOMMONCONTROLSEX.sizeof; + icex.dwICC = OS.ICC_COOL_CLASSES; + OS.InitCommonControlsEx (icex); + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, ReBarClass, lpWndClass); + ReBarProc = lpWndClass.lpfnWndProc; + } + static final int SEPARATOR_WIDTH = 2; + static final int MAX_WIDTH = 0x7FFF; + static final int DEFAULT_COOLBAR_WIDTH = 0; + static final int DEFAULT_COOLBAR_HEIGHT = 0; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public CoolBar (Composite parent, int style) { + super (parent, checkStyle (style)); + /* + * Ensure that either of HORIZONTAL or VERTICAL is set. + * NOTE: HORIZONTAL and VERTICAL have the same values + * as H_SCROLL and V_SCROLL so it is necessary to first + * clear these bits to avoid scroll bars and then reset + * the bits using the original style supplied by the + * programmer. + * + * NOTE: The CCS_VERT style cannot be applied when the + * widget is created because of this conflict. + */ + if ((style & DWT.VERTICAL) !is 0) { + this.style |= DWT.VERTICAL; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + OS.SetWindowLong (handle, OS.GWL_STYLE, bits | OS.CCS_VERT); + } else { + this.style |= DWT.HORIZONTAL; + } +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (ReBarProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + style |= DWT.NO_FOCUS; + /* + * Even though it is legal to create this widget + * with scroll bars, they serve no useful purpose + * because they do not automatically scroll the + * widget's client area. The fix is to clear + * the DWT style. + */ + return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0; + int border = getBorderWidth (); + int newWidth = wHint is DWT.DEFAULT ? 0x3FFF : wHint + (border * 2); + int newHeight = hHint is DWT.DEFAULT ? 0x3FFF : hHint + (border * 2); + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + if (count !is 0) { + ignoreResize = true; + bool redraw = false; + if (OS.IsWindowVisible (handle)) { + if (OS.COMCTL32_MAJOR >= 6) { + redraw = true; + OS.UpdateWindow (handle); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } else { + redraw = drawCount is 0; + if (redraw) { + OS.UpdateWindow (handle); + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } + } + } + RECT oldRect = new RECT (); + OS.GetWindowRect (handle, oldRect); + int oldWidth = oldRect.right - oldRect.left; + int oldHeight = oldRect.bottom - oldRect.top; + int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOREDRAW | OS.SWP_NOZORDER; + SetWindowPos (handle, 0, 0, 0, newWidth, newHeight, flags); + RECT rect = new RECT (); + OS.SendMessage (handle, OS.RB_GETRECT, count - 1, rect); + height = Math.max (height, rect.bottom); + SetWindowPos (handle, 0, 0, 0, oldWidth, oldHeight, flags); + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_IDEALSIZE | OS.RBBIM_STYLE; + int rowWidth = 0; + for (int i = 0; i < count; i++) { + OS.SendMessage(handle, OS.RB_GETBANDINFO, i, rbBand); + if ((rbBand.fStyle & OS.RBBS_BREAK) !is 0) { + width = Math.max(width, rowWidth); + rowWidth = 0; + } + rowWidth += rbBand.cxIdeal + getMargin (i); + } + width = Math.max(width, rowWidth); + if (redraw) { + if (OS.COMCTL32_MAJOR >= 6) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + } else { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + } + } + ignoreResize = false; + } + if (width is 0) width = DEFAULT_COOLBAR_WIDTH; + if (height is 0) height = DEFAULT_COOLBAR_HEIGHT; + if ((style & DWT.VERTICAL) !is 0) { + int tmp = width; + width = height; + height = tmp; + } + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + height += border * 2; + width += border * 2; + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + state &= ~(CANVAS | THEME_BACKGROUND); + + /* + * Feature in Windows. When the control is created, + * it does not use the default system font. A new HFONT + * is created and destroyed when the control is destroyed. + * This means that a program that queries the font from + * this control, uses the font in another control and then + * destroys this control will have the font unexpectedly + * destroyed in the other control. The fix is to assign + * the font ourselves each time the control is created. + * The control will not destroy a font that it did not + * create. + */ + int hFont = OS.GetStockObject (OS.SYSTEM_FONT); + OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0); +} + +void createItem (CoolItem item, int index) { + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + if (!(0 <= index && index <= count)) error (DWT.ERROR_INVALID_RANGE); + int id = 0; + while (id < items.length && items [id] !is null) id++; + if (id is items.length) { + CoolItem [] newItems = new CoolItem [items.length + 4]; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; + } + int hHeap = OS.GetProcessHeap (); + int lpText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, TCHAR.sizeof); + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_TEXT | OS.RBBIM_STYLE | OS.RBBIM_ID; + rbBand.fStyle = OS.RBBS_VARIABLEHEIGHT | OS.RBBS_GRIPPERALWAYS; + if ((item.style & DWT.DROP_DOWN) !is 0) { + rbBand.fStyle |= OS.RBBS_USECHEVRON; + } + rbBand.lpText = lpText; + rbBand.wID = id; + + /* + * Feature in Windows. When inserting an item at end of a row, + * sometimes, Windows will begin to place the item on the right + * side of the cool bar. The fix is to resize the new items to + * the maximum size and then resize the next to last item to the + * ideal size. + */ + int lastIndex = getLastIndexOfRow (index - 1); + bool fixLast = index is lastIndex + 1; + if (fixLast) { + rbBand.fMask |= OS.RBBIM_SIZE; + rbBand.cx = MAX_WIDTH; + } + + /* + * Feature in Windows. Is possible that the item at index zero + * has the RBBS_BREAK flag set. When a new item is inserted at + * position zero, the previous item at position zero moves to + * a new line. The fix is to detect this case and clear the + * RBBS_BREAK flag on the previous item before inserting the + * new item. + */ + if (index is 0 && count > 0) { + getItem (0).setWrap (false); + } + + /* Insert the item */ + if (OS.SendMessage (handle, OS.RB_INSERTBAND, index, rbBand) is 0) { + error (DWT.ERROR_ITEM_NOT_ADDED); + } + + /* Resize the next to last item to the ideal size */ + if (fixLast) { + resizeToPreferredWidth (lastIndex); + } + + OS.HeapFree (hHeap, 0, lpText); + items [item.id = id] = item; + int length = originalItems.length; + CoolItem [] newOriginals = new CoolItem [length + 1]; + System.arraycopy (originalItems, 0, newOriginals, 0, index); + System.arraycopy (originalItems, index, newOriginals, index + 1, length - index); + newOriginals [index] = item; + originalItems = newOriginals; +} + +void createWidget () { + super.createWidget (); + items = new CoolItem [4]; + originalItems = new CoolItem [0]; +} + +void destroyItem (CoolItem item) { + int index = OS.SendMessage (handle, OS.RB_IDTOINDEX, item.id, 0); + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + if (count !is 0) { + int lastIndex = getLastIndexOfRow (index); + if (index is lastIndex) { + /* + * Feature in Windows. If the last item in a row is + * given its ideal size, it will be placed at the far + * right hand edge of the coolbar. It is preferred + * that the last item appear next to the second last + * item. The fix is to size the last item of each row + * so that it occupies all the available space to the + * right in the row. + */ + resizeToMaximumWidth (lastIndex - 1); + } + } + + /* + * Feature in Windows. When Windows removed a rebar + * band, it makes the band child invisible. The fix + * is to show the child. + */ + Control control = item.control; + bool wasVisible = control !is null && !control.isDisposed() && control.getVisible (); + + /* + * When a wrapped item is being deleted, make the next + * item in the row wrapped in order to preserve the row. + * In order to avoid an unnecessary layout, temporarily + * ignore WM_SIZE. If the next item is wrapped then a + * row will be deleted and the WM_SIZE is necessary. + */ + CoolItem nextItem = null; + if (item.getWrap ()) { + if (index + 1 < count) { + nextItem = getItem (index + 1); + ignoreResize = !nextItem.getWrap (); + } + } + if (OS.SendMessage (handle, OS.RB_DELETEBAND, index, 0) is 0) { + error (DWT.ERROR_ITEM_NOT_REMOVED); + } + items [item.id] = null; + item.id = -1; + if (ignoreResize) { + nextItem.setWrap (true); + ignoreResize = false; + } + + /* Restore the visible state of the control */ + if (wasVisible) control.setVisible (true); + + index = 0; + while (index < originalItems.length) { + if (originalItems [index] is item) break; + index++; + } + int length = originalItems.length - 1; + CoolItem [] newOriginals = new CoolItem [length]; + System.arraycopy (originalItems, 0, newOriginals, 0, index); + System.arraycopy (originalItems, index + 1, newOriginals, index, length - index); + originalItems = newOriginals; +} + +void drawThemeBackground (int hDC, int hwnd, RECT rect) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (background is -1 && (style & DWT.FLAT) !is 0) { + Control control = findBackgroundControl (); + if (control !is null && control.backgroundImage !is null) { + fillBackground (hDC, control.getBackgroundPixel (), rect); + return; + } + } + } + RECT rect2 = new RECT (); + OS.GetClientRect (handle, rect2); + OS.MapWindowPoints (handle, hwnd, rect2, 2); + POINT lpPoint = new POINT (); + OS.SetWindowOrgEx (hDC, -rect2.left, -rect2.top, lpPoint); + OS.SendMessage (handle, OS.WM_PRINT, hDC, OS.PRF_CLIENT | OS.PRF_ERASEBKGND); + OS.SetWindowOrgEx (hDC, lpPoint.x, lpPoint.y, null); +} + +Control findThemeControl () { + if ((style & DWT.FLAT) !is 0) return this; + return background is -1 && backgroundImage is null ? this : super.findThemeControl (); +} + +int getMargin (int index) { + int margin = 0; + if (OS.COMCTL32_MAJOR >= 6) { + MARGINS margins = new MARGINS (); + OS.SendMessage (handle, OS.RB_GETBANDMARGINS, 0, margins); + margin += margins.cxLeftWidth + margins.cxRightWidth; + } + RECT rect = new RECT (); + OS.SendMessage (handle, OS.RB_GETBANDBORDERS, index, rect); + if ((style & DWT.FLAT) !is 0) { + /* + * Bug in Windows. When the style bit RBS_BANDBORDERS is not set + * the rectangle returned by RBS_BANDBORDERS is four pixels too small. + * The fix is to add four pixels to the result. + */ + if ((style & DWT.VERTICAL) !is 0) { + margin += rect.top + 4; + } else { + margin += rect.left + 4; + } + } else { + if ((style & DWT.VERTICAL) !is 0) { + margin += rect.top + rect.bottom; + } else { + margin += rect.left + rect.right; + } + } + if ((style & DWT.FLAT) is 0) { + if (!isLastItemOfRow (index)) { + margin += CoolBar.SEPARATOR_WIDTH; + } + } + return margin; +} + +/** + * Returns the item that is currently displayed at the given, + * zero-relative index. Throws an exception if the index is + * out of range. + * + * @param index the visual index of the item to return + * @return the item at the given visual index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public CoolItem getItem (int index) { + checkWidget (); + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + if (!(0 <= index && index < count)) error (DWT.ERROR_INVALID_RANGE); + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_ID; + OS.SendMessage (handle, OS.RB_GETBANDINFO, index, rbBand); + return items [rbBand.wID]; +} + +/** + * Returns the number of items contained in the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + return OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); +} + +/** + * Returns an array of zero-relative ints that map + * the creation order of the receiver's items to the + * order in which they are currently being displayed. + * <p> + * Specifically, the indices of the returned array represent + * the current visual order of the items, and the contents + * of the array represent the creation order of the items. + * </p><p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the current visual order of the receiver's items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int [] getItemOrder () { + checkWidget (); + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + int [] indices = new int [count]; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_ID; + for (int i=0; i<count; i++) { + OS.SendMessage (handle, OS.RB_GETBANDINFO, i, rbBand); + CoolItem item = items [rbBand.wID]; + int index = 0; + while (index<originalItems.length) { + if (originalItems [index] is item) break; + index++; + } + if (index is originalItems.length) error (DWT.ERROR_CANNOT_GET_ITEM); + indices [i] = index; + } + return indices; +} + +/** + * Returns an array of <code>CoolItem</code>s in the order + * in which they are currently being displayed. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the receiver's items in their current visual order + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public CoolItem [] getItems () { + checkWidget (); + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + CoolItem [] result = new CoolItem [count]; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_ID; + for (int i=0; i<count; i++) { + OS.SendMessage (handle, OS.RB_GETBANDINFO, i, rbBand); + result [i] = items [rbBand.wID]; + } + return result; +} + +/** + * Returns an array of points whose x and y coordinates describe + * the widths and heights (respectively) of the items in the receiver + * in the order in which they are currently being displayed. + * + * @return the receiver's item sizes in their current visual order + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point [] getItemSizes () { + checkWidget (); + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + Point [] sizes = new Point [count]; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_CHILDSIZE; + int separator = (style & DWT.FLAT) is 0 ? SEPARATOR_WIDTH : 0; + MARGINS margins = new MARGINS (); + for (int i=0; i<count; i++) { + RECT rect = new RECT (); + OS.SendMessage (handle, OS.RB_GETRECT, i, rect); + OS.SendMessage (handle, OS.RB_GETBANDINFO, i, rbBand); + if (OS.COMCTL32_MAJOR >= 6) { + OS.SendMessage (handle, OS.RB_GETBANDMARGINS, 0, margins); + rect.left -= margins.cxLeftWidth; + rect.right += margins.cxRightWidth; + } + if (!isLastItemOfRow(i)) rect.right += separator; + if ((style & DWT.VERTICAL) !is 0) { + sizes [i] = new Point (rbBand.cyChild, rect.right - rect.left); + } else { + sizes [i] = new Point (rect.right - rect.left, rbBand.cyChild); + } + } + return sizes; +} + +int getLastIndexOfRow (int index) { + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + if (count is 0) return -1; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_STYLE; + for (int i=index + 1; i<count; i++) { + OS.SendMessage (handle, OS.RB_GETBANDINFO, i, rbBand); + if ((rbBand.fStyle & OS.RBBS_BREAK) !is 0) { + return i - 1; + } + } + return count - 1; +} + +bool isLastItemOfRow (int index) { + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + if (index + 1 is count) return true; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_STYLE; + OS.SendMessage (handle, OS.RB_GETBANDINFO, index + 1, rbBand); + return (rbBand.fStyle & OS.RBBS_BREAK) !is 0; +} + +/** + * Returns whether or not the receiver is 'locked'. When a coolbar + * is locked, its items cannot be repositioned. + * + * @return true if the coolbar is locked, false otherwise + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public bool getLocked () { + checkWidget (); + return locked; +} + +/** + * Returns an array of ints that describe the zero-relative + * indices of any item(s) in the receiver that will begin on + * a new row. The 0th visible item always begins the first row, + * therefore it does not count as a wrap index. + * + * @return an array containing the receiver's wrap indices, or an empty array if all items are in one row + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int [] getWrapIndices () { + checkWidget (); + CoolItem [] items = getItems (); + int [] indices = new int [items.length]; + int count = 0; + for (int i=0; i<items.length; i++) { + if (items [i].getWrap ()) indices [count++] = i; + } + int [] result = new int [count]; + System.arraycopy (indices, 0, result, 0, count); + return result; +} + +/** + * Searches the receiver's items in the order they are currently + * being displayed, starting at the first item (index 0), until + * an item is found that is equal to the argument, and returns + * the index of that item. If no item is found, returns -1. + * + * @param item the search item + * @return the visual order index of the search item, or -1 if the item is not found + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (CoolItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + if (item.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + return OS.SendMessage (handle, OS.RB_IDTOINDEX, item.id, 0); +} + +void resizeToPreferredWidth (int index) { + /* + * Bug in Windows. When RB_GETBANDBORDERS is sent + * with an index out of range, Windows GP's. The + * fix is to ensure the index is in range. + */ + int count = OS.SendMessage(handle, OS.RB_GETBANDCOUNT, 0, 0); + if (0 <= index && index < count) { + REBARBANDINFO rbBand = new REBARBANDINFO(); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_IDEALSIZE; + OS.SendMessage (handle, OS.RB_GETBANDINFO, index, rbBand); + RECT rect = new RECT (); + OS.SendMessage (handle, OS.RB_GETBANDBORDERS, index, rect); + rbBand.cx = rbBand.cxIdeal + rect.left; + if ((style & DWT.FLAT) is 0) rbBand.cx += rect.right; + rbBand.fMask = OS.RBBIM_SIZE; + OS.SendMessage (handle, OS.RB_SETBANDINFO, index, rbBand); + } +} + +void resizeToMaximumWidth (int index) { + REBARBANDINFO rbBand = new REBARBANDINFO(); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_SIZE; + rbBand.cx = MAX_WIDTH; + OS.SendMessage (handle, OS.RB_SETBANDINFO, index, rbBand); +} + +void releaseChildren (bool destroy) { + if (items !is null) { + for (int i=0; i<items.length; i++) { + CoolItem item = items [i]; + if (item !is null && !item.isDisposed ()) { + item.release (false); + } + } + items = null; + } + super.releaseChildren (destroy); +} + +void removeControl (Control control) { + super.removeControl (control); + for (int i=0; i<items.length; i++) { + CoolItem item = items [i]; + if (item !is null && item.control is control) { + item.setControl (null); + } + } +} + +void setBackgroundPixel (int pixel) { + if (pixel is -1) pixel = defaultBackground (); + OS.SendMessage (handle, OS.RB_SETBKCOLOR, 0, pixel); + setItemColors (OS.SendMessage (handle, OS.RB_GETTEXTCOLOR, 0, 0), pixel); + /* + * Feature in Windows. For some reason, Windows + * does not fully erase the coolbar area and coolbar + * items when you set the background. The fix is + * to invalidate the coolbar area. + */ + if (!OS.IsWindowVisible (handle)) return; + if (OS.IsWinCE) { + OS.InvalidateRect (handle, null, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } +} + +void setForegroundPixel (int pixel) { + if (pixel is -1) pixel = defaultForeground (); + OS.SendMessage (handle, OS.RB_SETTEXTCOLOR, 0, pixel); + setItemColors (pixel, OS.SendMessage (handle, OS.RB_GETBKCOLOR, 0, 0)); +} + +void setItemColors (int foreColor, int backColor) { + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_COLORS; + rbBand.clrFore = foreColor; + rbBand.clrBack = backColor; + for (int i=0; i<count; i++) { + OS.SendMessage (handle, OS.RB_SETBANDINFO, i, rbBand); + } +} + +/** + * Sets the receiver's item order, wrap indices, and item sizes + * all at once. This method is typically used to restore the + * displayed state of the receiver to a previously stored state. + * <p> + * The item order is the order in which the items in the receiver + * should be displayed, given in terms of the zero-relative ordering + * of when the items were added. + * </p><p> + * The wrap indices are the indices of all item(s) in the receiver + * that will begin on a new row. The indices are given in the order + * specified by the item order. The 0th item always begins the first + * row, therefore it does not count as a wrap index. If wrap indices + * is null or empty, the items will be placed on one line. + * </p><p> + * The sizes are specified in an array of points whose x and y + * coordinates describe the new widths and heights (respectively) + * of the receiver's items in the order specified by the item order. + * </p> + * + * @param itemOrder an array of indices that describe the new order to display the items in + * @param wrapIndices an array of wrap indices, or null + * @param sizes an array containing the new sizes for each of the receiver's items in visual order + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if item order or sizes is null</li> + * <li>ERROR_INVALID_ARGUMENT - if item order or sizes is not the same length as the number of items</li> + * </ul> + */ +public void setItemLayout (int [] itemOrder, int [] wrapIndices, Point [] sizes) { + checkWidget (); + setRedraw (false); + setItemOrder (itemOrder); + setWrapIndices (wrapIndices); + setItemSizes (sizes); + setRedraw (true); +} + +/* + * Sets the order that the items in the receiver should + * be displayed in to the given argument which is described + * in terms of the zero-relative ordering of when the items + * were added. + * + * @param itemOrder the new order to display the items in + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item order is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item order is not the same length as the number of items</li> + * </ul> + */ +void setItemOrder (int [] itemOrder) { + if (itemOrder is null) error (DWT.ERROR_NULL_ARGUMENT); + int itemCount = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + if (itemOrder.length !is itemCount) error (DWT.ERROR_INVALID_ARGUMENT); + + /* Ensure that itemOrder does not contain any duplicates. */ + bool [] set = new bool [itemCount]; + for (int i=0; i<itemOrder.length; i++) { + int index = itemOrder [i]; + if (index < 0 || index >= itemCount) error (DWT.ERROR_INVALID_RANGE); + if (set [index]) error (DWT.ERROR_INVALID_ARGUMENT); + set [index] = true; + } + + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + for (int i=0; i<itemOrder.length; i++) { + int id = originalItems [itemOrder [i]].id; + int index = OS.SendMessage (handle, OS.RB_IDTOINDEX, id, 0); + if (index !is i) { + int lastItemSrcRow = getLastIndexOfRow (index); + int lastItemDstRow = getLastIndexOfRow (i); + if (index is lastItemSrcRow) { + resizeToPreferredWidth (index); + } + if (i is lastItemDstRow) { + resizeToPreferredWidth (i); + } + + /* Move the item */ + OS.SendMessage (handle, OS.RB_MOVEBAND, index, i); + + if (index is lastItemSrcRow && index - 1 >= 0) { + resizeToMaximumWidth (index - 1); + } + if (i is lastItemDstRow) { + resizeToMaximumWidth (i); + } + } + } +} + +/* + * Sets the width and height of the receiver's items to the ones + * specified by the argument, which is an array of points whose x + * and y coordinates describe the widths and heights (respectively) + * in the order in which the items are currently being displayed. + * + * @param sizes an array containing the new sizes for each of the receiver's items in visual order + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of sizes is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the array of sizes is not the same length as the number of items</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +void setItemSizes (Point [] sizes) { + if (sizes is null) error (DWT.ERROR_NULL_ARGUMENT); + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + if (sizes.length !is count) error (DWT.ERROR_INVALID_ARGUMENT); + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_ID; + for (int i=0; i<count; i++) { + OS.SendMessage (handle, OS.RB_GETBANDINFO, i, rbBand); + items [rbBand.wID].setSize (sizes [i].x, sizes [i].y); + } +} + +/** + * Sets whether or not the receiver is 'locked'. When a coolbar + * is locked, its items cannot be repositioned. + * + * @param locked lock the coolbar if true, otherwise unlock the coolbar + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public void setLocked (bool locked) { + checkWidget (); + this.locked = locked; + int count = OS.SendMessage (handle, OS.RB_GETBANDCOUNT, 0, 0); + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_STYLE; + for (int i=0; i<count; i++) { + OS.SendMessage (handle, OS.RB_GETBANDINFO, i, rbBand); + if (locked) { + rbBand.fStyle |= OS.RBBS_NOGRIPPER; + } else { + rbBand.fStyle &= ~OS.RBBS_NOGRIPPER; + } + OS.SendMessage (handle, OS.RB_SETBANDINFO, i, rbBand); + } +} + +/** + * Sets the indices of all item(s) in the receiver that will + * begin on a new row. The indices are given in the order in + * which they are currently being displayed. The 0th item + * always begins the first row, therefore it does not count + * as a wrap index. If indices is null or empty, the items + * will be placed on one line. + * + * @param indices an array of wrap indices, or null + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setWrapIndices (int [] indices) { + checkWidget (); + if (indices is null) indices = new int [0]; + int count = getItemCount (); + for (int i=0; i<indices.length; i++) { + if (indices [i] < 0 || indices [i] >= count) { + error (DWT.ERROR_INVALID_RANGE); + } + } + setRedraw (false); + CoolItem [] items = getItems (); + for (int i=0; i<items.length; i++) { + CoolItem item = items [i]; + if (item.getWrap ()) { + resizeToPreferredWidth (i - 1); + item.setWrap (false); + } + } + resizeToMaximumWidth (count - 1); + for (int i=0; i<indices.length; i++) { + int index = indices [i]; + if (0 <= index && index < items.length) { + CoolItem item = items [index]; + item.setWrap (true); + resizeToMaximumWidth (index - 1); + } + } + setRedraw (true); +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.CCS_NODIVIDER | OS.CCS_NORESIZE; + bits |= OS.RBS_VARHEIGHT | OS.RBS_DBLCLKTOGGLE; + if ((style & DWT.FLAT) is 0) bits |= OS.RBS_BANDBORDERS; + return bits; +} + +TCHAR windowClass () { + return ReBarClass; +} + +int windowProc () { + return ReBarProc; +} + +LRESULT WM_COMMAND (int wParam, int lParam) { + /* + * Feature in Windows. When the coolbar window + * proc processes WM_COMMAND, it forwards this + * message to its parent. This is done so that + * children of this control that send this message + * type to their parent will notify not only + * this control but also the parent of this control, + * which is typically the application window and + * the window that is looking for the message. + * If the control did not forward the message, + * applications would have to subclass the control + * window to see the message. Because the control + * window is subclassed by DWT, the message + * is delivered twice, once by DWT and once when + * the message is forwarded by the window proc. + * The fix is to avoid calling the window proc + * for this control. + */ + LRESULT result = super.WM_COMMAND (wParam, lParam); + if (result !is null) return result; + return LRESULT.ZERO; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + /* + * Feature in Windows. For some reason, Windows + * does not fully erase the area that the cool bar + * occupies when the size of the cool bar is larger + * than the space occupied by the cool bar items. + * The fix is to erase the cool bar background. + * + * NOTE: On versions of Windows prior to XP, for + * some reason, the cool bar draws separators in + * WM_ERASEBKGND. Therefore it is essential to run + * the cool bar window proc after the background has + * been erased. + */ + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + drawBackground (wParam); + return null; + } + return result; +} + +LRESULT WM_NOTIFY (int wParam, int lParam) { + /* + * Feature in Windows. When the cool bar window + * proc processes WM_NOTIFY, it forwards this + * message to its parent. This is done so that + * children of this control that send this message + * type to their parent will notify not only + * this control but also the parent of this control, + * which is typically the application window and + * the window that is looking for the message. + * If the control did not forward the message, + * applications would have to subclass the control + * window to see the message. Because the control + * window is subclassed by DWT, the message + * is delivered twice, once by DWT and once when + * the message is forwarded by the window proc. + * The fix is to avoid calling the window proc + * for this control. + */ + LRESULT result = super.WM_NOTIFY (wParam, lParam); + if (result !is null) return result; + return LRESULT.ZERO; +} + +LRESULT WM_SETREDRAW (int wParam, int lParam) { + LRESULT result = super.WM_SETREDRAW (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. When redraw is turned off, the rebar + * control does not call the default window proc. This means + * that the rebar will redraw and children of the rebar will + * also redraw. The fix is to call both the rebar window proc + * and the default window proc. + * + * NOTE: The rebar control can resize itself in WM_SETREDRAW. + * When redraw is turned off by the default window proc, this + * can leave pixel corruption in the parent. The fix is to + * detect the size change and damage the previous area in the + * parent. + * + * NOTE: In version 6.00 of COMCTL32.DLL, when WM_SETREDRAW + * is off, we cannot detect that the size has changed causing + * pixel corruption. The fix is to disallow WM_SETREDRAW by + * not running the default window proc or the rebar window + * proc. + */ + if (OS.COMCTL32_MAJOR >= 6) return LRESULT.ZERO; + Rectangle rect = getBounds (); + int code = callWindowProc (handle, OS.WM_SETREDRAW, wParam, lParam); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, wParam, lParam); + if (!rect.equals (getBounds ())) { + parent.redraw (rect.x, rect.y, rect.width, rect.height, true); + } + return new LRESULT (code); +} + +LRESULT WM_SIZE (int wParam, int lParam) { + if (ignoreResize) { + int code = callWindowProc (handle, OS.WM_SIZE, wParam, lParam); + if (code is 0) return LRESULT.ZERO; + return new LRESULT (code); + } + //TEMPORARY CODE +// if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { +// if (background is -1 && (style & DWT.FLAT) is 0) { +// OS.InvalidateRect (handle, null, true); +// } +// } + return super.WM_SIZE (wParam, lParam); +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + switch (hdr.code) { + case OS.RBN_BEGINDRAG: { + int pos = OS.GetMessagePos (); + POINT pt = new POINT (); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (handle, pt); + int button = display.lastButton !is 0 ? display.lastButton : 1; + if (!sendDragEvent (button, pt.x, pt.y)) return LRESULT.ONE; + break; + } + case OS.RBN_CHILDSIZE: { + /* + * Bug in Windows. When Windows sets the size of the rebar band + * child and the child is a combo box, the size of the drop down + * portion of the combo box is resized to zero. The fix is to set + * the size of the control to the current size after the rebar has + * already resized it. If the control is not a combo, this does + * nothing. If the control is a combo, the drop down portion is + * recalculated. + */ + NMREBARCHILDSIZE lprbcs = new NMREBARCHILDSIZE (); + OS.MoveMemory (lprbcs, lParam, NMREBARCHILDSIZE.sizeof); + if (lprbcs.uBand !is -1) { + CoolItem item = items [lprbcs.wID]; + Control control = item.control; + if (control !is null) { + int width = lprbcs.rcChild_right - lprbcs.rcChild_left; + int height = lprbcs.rcChild_bottom - lprbcs.rcChild_top; + control.setBounds (lprbcs.rcChild_left, lprbcs.rcChild_top, width, height); + } + } + break; + } + case OS.RBN_HEIGHTCHANGE: { + if (!ignoreResize) { + Point size = getSize (); + int border = getBorderWidth (); + int barHeight = OS.SendMessage (handle, OS.RB_GETBARHEIGHT, 0, 0); + if ((style & DWT.VERTICAL) !is 0) { + setSize (barHeight + 2 * border, size.y); + } else { + setSize (size.x, barHeight + 2 * border); + } + } + break; + } + case OS.RBN_CHEVRONPUSHED: { + NMREBARCHEVRON lpnm = new NMREBARCHEVRON (); + OS.MoveMemory (lpnm, lParam, NMREBARCHEVRON.sizeof); + CoolItem item = items [lpnm.wID]; + if (item !is null) { + Event event = new Event(); + event.detail = DWT.ARROW; + if ((style & DWT.VERTICAL) !is 0) { + event.x = lpnm.right; + event.y = lpnm.top; + } else { + event.x = lpnm.left; + event.y = lpnm.bottom; + } + item.postEvent (DWT.Selection, event); + } + break; + } + case OS.NM_CUSTOMDRAW: { + /* + * Bug in Windows. On versions of Windows prior to XP, + * drawing the background color in NM_CUSTOMDRAW erases + * the separators. The fix is to draw the background + * in WM_ERASEBKGND. + */ + if (OS.COMCTL32_MAJOR < 6) break; + if (findBackgroundControl () !is null || (style & DWT.FLAT) !is 0) { + NMCUSTOMDRAW nmcd = new NMCUSTOMDRAW (); + OS.MoveMemory (nmcd, lParam, NMCUSTOMDRAW.sizeof); + switch (nmcd.dwDrawStage) { + case OS.CDDS_PREERASE: + return new LRESULT (OS.CDRF_SKIPDEFAULT | OS.CDRF_NOTIFYPOSTERASE); + case OS.CDDS_POSTERASE: + drawBackground (nmcd.hdc); + break; + } + } + break; + } + } + return super.wmNotifyChild (hdr, wParam, lParam); +} +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/CoolItem.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,731 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.CoolItem; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class CoolItem : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.MARGINS; +import dwt.internal.win32.OS; +import dwt.internal.win32.REBARBANDINFO; +import dwt.internal.win32.RECT; + +/** + * Instances of this class are selectable user interface + * objects that represent the dynamically positionable + * areas of a <code>CoolBar</code>. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>DROP_DOWN</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class CoolItem extends Item { + CoolBar parent; + Control control; + int id; + bool ideal, minimum; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>CoolBar</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#DROP_DOWN + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public CoolItem (CoolBar parent, int style) { + super (parent, style); + this.parent = parent; + parent.createItem (this, parent.getItemCount ()); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>CoolBar</code>), a style value + * describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index at which to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#DROP_DOWN + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public CoolItem (CoolBar parent, int style, int index) { + super (parent, style); + this.parent = parent; + parent.createItem (this, index); +} + +/** + * Adds the listener to the collection of listeners that will + * be notified when the control is selected by the user, by sending it one + * of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * If <code>widgetSelected</code> is called when the mouse is over + * the drop-down arrow (or 'chevron') portion of the cool item, + * the event object detail field contains the value <code>DWT.ARROW</code>, + * and the x and y fields in the event object represent the point at + * the bottom left of the chevron, where the menu should be popped up. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the control is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + * + * @since 2.0 + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +/** + * Returns the preferred size of the receiver. + * <p> + * The <em>preferred size</em> of a <code>CoolItem</code> is the size that + * it would best be displayed at. The width hint and height hint arguments + * allow the caller to ask the instance questions such as "Given a particular + * width, how high does it need to be to show all of the contents?" + * To indicate that the caller does not wish to constrain a particular + * dimension, the constant <code>DWT.DEFAULT</code> is passed for the hint. + * </p> + * + * @param wHint the width hint (can be <code>DWT.DEFAULT</code>) + * @param hHint the height hint (can be <code>DWT.DEFAULT</code>) + * @return the preferred size + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Layout + * @see #getBounds + * @see #getSize + * @see Control#getBorderWidth + * @see Scrollable#computeTrim + * @see Scrollable#getClientArea + */ +public Point computeSize (int wHint, int hHint) { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return new Point (0, 0); + int width = wHint, height = hHint; + if (wHint is DWT.DEFAULT) width = 32; + if (hHint is DWT.DEFAULT) height = 32; + if ((parent.style & DWT.VERTICAL) !is 0) { + height += parent.getMargin (index); + } else { + width += parent.getMargin (index); + } + return new Point (width, height); +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent. + * + * @return the receiver's bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Rectangle getBounds () { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return new Rectangle (0, 0, 0, 0); + int hwnd = parent.handle; + RECT rect = new RECT (); + OS.SendMessage (hwnd, OS.RB_GETRECT, index, rect); + if (OS.COMCTL32_MAJOR >= 6) { + MARGINS margins = new MARGINS (); + OS.SendMessage (hwnd, OS.RB_GETBANDMARGINS, 0, margins); + rect.left -= margins.cxLeftWidth; + rect.right += margins.cxRightWidth; + } + if (!parent.isLastItemOfRow (index)) { + rect.right += (parent.style & DWT.FLAT) is 0 ? CoolBar.SEPARATOR_WIDTH : 0; + } + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + if ((parent.style & DWT.VERTICAL) !is 0) { + return new Rectangle (rect.top, rect.left, height, width); + } + return new Rectangle (rect.left, rect.top, width, height); +} + +Rectangle getClientArea () { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return new Rectangle (0, 0, 0, 0); + int hwnd = parent.handle; + RECT insetRect = new RECT (); + OS.SendMessage (hwnd, OS.RB_GETBANDBORDERS, index, insetRect); + RECT rect = new RECT (); + OS.SendMessage (hwnd, OS.RB_GETRECT, index, rect); + int x = rect.left + insetRect.left; + int y = rect.top; + int width = rect.right - rect.left - insetRect.left; + int height = rect.bottom - rect.top; + if ((parent.style & DWT.FLAT) is 0) { + y += insetRect.top; + width -= insetRect.right; + height -= insetRect.top + insetRect.bottom; + } + if (index is 0) { + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_HEADERSIZE; + OS.SendMessage (hwnd, OS.RB_GETBANDINFO, index, rbBand); + width = width - rbBand.cxHeader + 1; + } + return new Rectangle (x, y, Math.max (0, width), Math.max (0, height)); +} + +/** + * Returns the control that is associated with the receiver. + * + * @return the control that is contained by the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Control getControl () { + checkWidget (); + return control; +} + +/** + * Returns the receiver's parent, which must be a <code>CoolBar</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public CoolBar getParent () { + checkWidget (); + return parent; +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; + id = -1; + control = null; +} + +/** + * Sets the control that is associated with the receiver + * to the argument. + * + * @param control the new control that will be contained by the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> + * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setControl (Control control) { + checkWidget (); + if (control !is null) { + if (control.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + if (control.parent !is parent) error (DWT.ERROR_INVALID_PARENT); + } + int index = parent.indexOf (this); + if (index is -1) return; + if (this.control !is null && this.control.isDisposed ()) { + this.control = null; + } + Control oldControl = this.control, newControl = control; + int hwnd = parent.handle; + int hwndChild = newControl !is null ? control.topHandle () : 0; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_CHILD; + rbBand.hwndChild = hwndChild; + this.control = newControl; + + /* + * Feature in Windows. When Windows sets the rebar band child, + * it makes the new child visible and hides the old child and + * moves the new child to the top of the Z-order. The fix is + * to save and restore the visibility and Z-order. + */ + int hwndAbove = 0; + if (newControl !is null) { + hwndAbove = OS.GetWindow (hwndChild, OS.GW_HWNDPREV); + } + bool hideNew = newControl !is null && !newControl.getVisible (); + bool showOld = oldControl !is null && oldControl.getVisible (); + OS.SendMessage (hwnd, OS.RB_SETBANDINFO, index, rbBand); + if (hideNew) newControl.setVisible (false); + if (showOld) oldControl.setVisible (true); + if (hwndAbove !is 0 && hwndAbove !is hwndChild) { + int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; + SetWindowPos (hwndChild, hwndAbove, 0, 0, 0, 0, flags); + } +} + +/** + * Returns a point describing the receiver's ideal size. + * The x coordinate of the result is the ideal width of the receiver. + * The y coordinate of the result is the ideal height of the receiver. + * + * @return the receiver's ideal size + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getPreferredSize () { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return new Point (0, 0); + int hwnd = parent.handle; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_CHILDSIZE | OS.RBBIM_IDEALSIZE; + OS.SendMessage (hwnd, OS.RB_GETBANDINFO, index, rbBand); + int width = rbBand.cxIdeal + parent.getMargin (index); + if ((parent.style & DWT.VERTICAL) !is 0) { + return new Point (rbBand.cyMaxChild, width); + } + return new Point (width, rbBand.cyMaxChild); +} + +/** + * Sets the receiver's ideal size to the point specified by the arguments. + * + * @param width the new ideal width for the receiver + * @param height the new ideal height for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setPreferredSize (int width, int height) { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return; + width = Math.max (0, width); + height = Math.max (0, height); + ideal = true; + int hwnd = parent.handle; + int cxIdeal, cyMaxChild; + if ((parent.style & DWT.VERTICAL) !is 0) { + cxIdeal = Math.max (0, height - parent.getMargin (index)); + cyMaxChild = width; + } else { + cxIdeal = Math.max (0, width - parent.getMargin (index)); + cyMaxChild = height; + } + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + + /* Get the child size fields first so we don't overwrite them. */ + rbBand.fMask = OS.RBBIM_CHILDSIZE; + OS.SendMessage (hwnd, OS.RB_GETBANDINFO, index, rbBand); + + /* Set the size fields we are currently modifying. */ + rbBand.fMask = OS.RBBIM_CHILDSIZE | OS.RBBIM_IDEALSIZE; + rbBand.cxIdeal = cxIdeal; + rbBand.cyMaxChild = cyMaxChild; + if (!minimum) rbBand.cyMinChild = cyMaxChild; + OS.SendMessage (hwnd, OS.RB_SETBANDINFO, index, rbBand); +} + +/** + * Sets the receiver's ideal size to the point specified by the argument. + * + * @param size the new ideal size for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setPreferredSize (Point size) { + checkWidget (); + if (size is null) error(DWT.ERROR_NULL_ARGUMENT); + setPreferredSize (size.x, size.y); +} + +/** + * Returns a point describing the receiver's size. The + * x coordinate of the result is the width of the receiver. + * The y coordinate of the result is the height of the + * receiver. + * + * @return the receiver's size + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getSize() { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) new Point (0, 0); + int hwnd = parent.handle; + RECT rect = new RECT (); + OS.SendMessage (hwnd, OS.RB_GETRECT, index, rect); + if (OS.COMCTL32_MAJOR >= 6) { + MARGINS margins = new MARGINS (); + OS.SendMessage (hwnd, OS.RB_GETBANDMARGINS, 0, margins); + rect.left -= margins.cxLeftWidth; + rect.right += margins.cxRightWidth; + } + if (!parent.isLastItemOfRow (index)) { + rect.right += (parent.style & DWT.FLAT) is 0 ? CoolBar.SEPARATOR_WIDTH : 0; + } + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + if ((parent.style & DWT.VERTICAL) !is 0) { + return new Point (height, width); + } + return new Point (width, height); +} + +/** + * Sets the receiver's size to the point specified by the arguments. + * <p> + * Note: Attempting to set the width or height of the + * receiver to a negative number will cause that + * value to be set to zero instead. + * </p> + * + * @param width the new width for the receiver + * @param height the new height for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSize (int width, int height) { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return; + width = Math.max (0, width); + height = Math.max (0, height); + int hwnd = parent.handle; + int cx, cyChild, cxIdeal; + if ((parent.style & DWT.VERTICAL) !is 0) { + cx = height; + cyChild = width; + cxIdeal = Math.max (0, height - parent.getMargin (index)); + } else { + cx = width; + cyChild = height; + cxIdeal = Math.max (0, width - parent.getMargin (index)); + } + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + + /* Get the child size fields first so we don't overwrite them. */ + rbBand.fMask = OS.RBBIM_CHILDSIZE | OS.RBBIM_IDEALSIZE; + OS.SendMessage (hwnd, OS.RB_GETBANDINFO, index, rbBand); + + /* Set the size fields we are currently modifying. */ + if (!ideal) rbBand.cxIdeal = cxIdeal; + if (!minimum) rbBand.cyMinChild = cyChild; + rbBand.cyChild = cyChild; + + /* + * Do not set the size for the last item on the row. + */ + if (!parent.isLastItemOfRow (index)) { + if (OS.COMCTL32_MAJOR >= 6) { + MARGINS margins = new MARGINS (); + OS.SendMessage (hwnd, OS.RB_GETBANDMARGINS, 0, margins); + cx -= margins.cxLeftWidth + margins.cxRightWidth; + } + int separator = (parent.style & DWT.FLAT) is 0 ? CoolBar.SEPARATOR_WIDTH : 0; + rbBand.cx = cx - separator; + rbBand.fMask |= OS.RBBIM_SIZE; + } + OS.SendMessage (hwnd, OS.RB_SETBANDINFO, index, rbBand); +} + +/** + * Sets the receiver's size to the point specified by the argument. + * <p> + * Note: Attempting to set the width or height of the + * receiver to a negative number will cause them to be + * set to zero instead. + * </p> + * + * @param size the new size for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSize (Point size) { + if (size is null) error(DWT.ERROR_NULL_ARGUMENT); + setSize (size.x, size.y); +} + +/** + * Returns the minimum size that the cool item can + * be resized to using the cool item's gripper. + * + * @return a point containing the minimum width and height of the cool item, in pixels + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public Point getMinimumSize () { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return new Point (0, 0); + int hwnd = parent.handle; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_CHILDSIZE; + OS.SendMessage (hwnd, OS.RB_GETBANDINFO, index, rbBand); + if ((parent.style & DWT.VERTICAL) !is 0) { + return new Point (rbBand.cyMinChild, rbBand.cxMinChild); + } + return new Point (rbBand.cxMinChild, rbBand.cyMinChild); +} + +/** + * Sets the minimum size that the cool item can be resized to + * using the cool item's gripper, to the point specified by the arguments. + * + * @param width the minimum width of the cool item, in pixels + * @param height the minimum height of the cool item, in pixels + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public void setMinimumSize (int width, int height) { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return; + width = Math.max (0, width); + height = Math.max (0, height); + minimum = true; + int hwnd = parent.handle; + int cxMinChild, cyMinChild; + if ((parent.style & DWT.VERTICAL) !is 0) { + cxMinChild = height; + cyMinChild = width; + } else { + cxMinChild = width; + cyMinChild = height; + } + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + + /* Get the child size fields first so we don't overwrite them. */ + rbBand.fMask = OS.RBBIM_CHILDSIZE; + OS.SendMessage (hwnd, OS.RB_GETBANDINFO, index, rbBand); + + /* Set the size fields we are currently modifying. */ + rbBand.cxMinChild = cxMinChild; + rbBand.cyMinChild = cyMinChild; + OS.SendMessage (hwnd, OS.RB_SETBANDINFO, index, rbBand); +} + +/** + * Sets the minimum size that the cool item can be resized to + * using the cool item's gripper, to the point specified by the argument. + * + * @param size a point representing the minimum width and height of the cool item, in pixels + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public void setMinimumSize (Point size) { + checkWidget (); + if (size is null) error (DWT.ERROR_NULL_ARGUMENT); + setMinimumSize (size.x, size.y); +} + +bool getWrap() { + int index = parent.indexOf (this); + int hwnd = parent.handle; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_STYLE; + OS.SendMessage (hwnd, OS.RB_GETBANDINFO, index, rbBand); + return (rbBand.fStyle & OS.RBBS_BREAK) !is 0; +} + +void setWrap(bool wrap) { + int index = parent.indexOf (this); + int hwnd = parent.handle; + REBARBANDINFO rbBand = new REBARBANDINFO (); + rbBand.cbSize = REBARBANDINFO.sizeof; + rbBand.fMask = OS.RBBIM_STYLE; + OS.SendMessage (hwnd, OS.RB_GETBANDINFO, index, rbBand); + if (wrap) { + rbBand.fStyle |= OS.RBBS_BREAK; + } else { + rbBand.fStyle &= ~OS.RBBS_BREAK; + } + OS.SendMessage (hwnd, OS.RB_SETBANDINFO, index, rbBand); +} + +/** + * Removes the listener from the collection of listeners that + * will be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + * + * @since 2.0 + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/DateTime.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,796 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.DateTime; + +import dwt.widgets.Composite; + +class DateTime : Composite { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Point; +import dwt.internal.win32.INITCOMMONCONTROLSEX; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SYSTEMTIME; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +//TODO - features not yet implemented: read-only, drop-down calendar for date +//TODO - font, colors, background image not yet implemented (works on some platforms) + +/** + * Instances of this class are selectable user interface + * objects that allow the user to enter and modify date + * or time values. + * <p> + * Note that although this class is a subclass of <code>Composite</code>, + * it does not make sense to add children to it, or set a layout on it. + * </p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>DATE, TIME, CALENDAR, SHORT, MEDIUM, LONG</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles DATE, TIME, or CALENDAR may be specified, + * and only one of the styles SHORT, MEDIUM, or LONG may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @since 3.3 + */ + +public class DateTime extends Composite { + static final int DateTimeProc; + static final TCHAR DateTimeClass = new TCHAR (0, OS.DATETIMEPICK_CLASS, true); + static final int CalendarProc; + static final TCHAR CalendarClass = new TCHAR (0, OS.MONTHCAL_CLASS, true); + static { + INITCOMMONCONTROLSEX icex = new INITCOMMONCONTROLSEX (); + icex.dwSize = INITCOMMONCONTROLSEX.sizeof; + icex.dwICC = OS.ICC_DATE_CLASSES; + OS.InitCommonControlsEx (icex); + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, DateTimeClass, lpWndClass); + DateTimeProc = lpWndClass.lpfnWndProc; + OS.GetClassInfo (0, CalendarClass, lpWndClass); + CalendarProc = lpWndClass.lpfnWndProc; + } + static final int MARGIN = 4; + static final int MAX_DIGIT = 9; + static final int MAX_DAY = 31; + static final int MAX_12HOUR = 12; + static final int MAX_24HOUR = 24; + static final int MAX_MINUTE = 60; + static final int MONTH_DAY_YEAR = 0; + static final int DAY_MONTH_YEAR = 1; + static final int YEAR_MONTH_DAY = 2; + static final char SINGLE_QUOTE = '\''; //$NON-NLS-1$ short date format may include quoted text + static final char DAY_FORMAT_CONSTANT = 'd'; //$NON-NLS-1$ 1-4 lowercase 'd's represent day + static final char MONTH_FORMAT_CONSTANT = 'M'; //$NON-NLS-1$ 1-4 uppercase 'M's represent month + static final char YEAR_FORMAT_CONSTANT = 'y'; //$NON-NLS-1$ 1-5 lowercase 'y's represent year + static final char HOURS_FORMAT_CONSTANT = 'h'; //$NON-NLS-1$ 1-2 upper or lowercase 'h's represent hours + static final char MINUTES_FORMAT_CONSTANT = 'm'; //$NON-NLS-1$ 1-2 lowercase 'm's represent minutes + static final char SECONDS_FORMAT_CONSTANT = 's'; //$NON-NLS-1$ 1-2 lowercase 's's represent seconds + static final char AMPM_FORMAT_CONSTANT = 't'; //$NON-NLS-1$ 1-2 lowercase 't's represent am/pm + static final int[] MONTH_NAMES = new int[] {OS.LOCALE_SMONTHNAME1, OS.LOCALE_SMONTHNAME2, OS.LOCALE_SMONTHNAME3, OS.LOCALE_SMONTHNAME4, OS.LOCALE_SMONTHNAME5, OS.LOCALE_SMONTHNAME6, OS.LOCALE_SMONTHNAME7, OS.LOCALE_SMONTHNAME8, OS.LOCALE_SMONTHNAME9, OS.LOCALE_SMONTHNAME10, OS.LOCALE_SMONTHNAME11, OS.LOCALE_SMONTHNAME12}; + + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#DATE + * @see DWT#TIME + * @see DWT#CALENDAR + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public DateTime (Composite parent, int style) { + super (parent, checkStyle (style)); + if ((this.style & DWT.SHORT) !is 0) { + String buffer = ((this.style & DWT.DATE) !is 0) ? getCustomShortDateFormat() : getCustomShortTimeFormat(); + TCHAR lpszFormat = new TCHAR (0, buffer, true); + OS.SendMessage (handle, OS.DTM_SETFORMAT, 0, lpszFormat); + } +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the user changes the control's value. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection, typedListener); + addListener (DWT.DefaultSelection, typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (windowProc (), hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + /* + * Even though it is legal to create this widget + * with scroll bars, they serve no useful purpose + * because they do not automatically scroll the + * widget's client area. The fix is to clear + * the DWT style. + */ + style &= ~(DWT.H_SCROLL | DWT.V_SCROLL); + style = checkBits (style, DWT.DATE, DWT.TIME, DWT.CALENDAR, 0, 0, 0); + return checkBits (style, DWT.MEDIUM, DWT.SHORT, DWT.LONG, 0, 0, 0); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0; + if (wHint is DWT.DEFAULT || hHint is DWT.DEFAULT) { + if ((style & DWT.CALENDAR) !is 0) { + RECT rect = new RECT (); + OS.SendMessage(handle, OS.MCM_GETMINREQRECT, 0, rect); + width = rect.right; + height = rect.bottom; + } else { + TCHAR buffer = new TCHAR (getCodePage (), 128); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_EDITCONTROL | OS.DT_NOPREFIX; + SYSTEMTIME systime = new SYSTEMTIME (); + if ((style & DWT.DATE) !is 0) { + /* Determine the widest/tallest year string. */ + systime.wMonth = 1; + systime.wDay = 1; + int widest = 0, secondWidest = 0, thirdWidest = 0; + for (int i = 0; i <= MAX_DIGIT; i++) { + systime.wYear = (short) (2000 + i); // year 2000 + i is guaranteed to exist + int size = OS.GetDateFormat(OS.LOCALE_USER_DEFAULT, OS.DATE_SHORTDATE, systime, null, buffer, buffer.length ()); + if (size is 0) { + buffer = new TCHAR (getCodePage (), size); + OS.GetDateFormat(OS.LOCALE_USER_DEFAULT, OS.DATE_SHORTDATE, systime, null, buffer, buffer.length ()); + } + rect.left = rect.top = rect.right = rect.bottom = 0; + OS.DrawText (hDC, buffer, size, rect, flags); + if (rect.right - rect.left >= width) { + width = rect.right - rect.left; + thirdWidest = secondWidest; + secondWidest = widest; + widest = i; + } + height = Math.max(height, rect.bottom - rect.top); + } + if (widest > 1) widest = widest * 1000 + widest * 100 + widest * 10 + widest; + else if (secondWidest > 1) widest = secondWidest * 1000 + widest * 100 + widest * 10 + widest; + else widest = thirdWidest * 1000 + widest * 100 + widest * 10 + widest; + systime.wYear = (short) widest; + + /* Determine the widest/tallest month name string. */ + width = widest = 0; + for (short i = 0; i < MONTH_NAMES.length; i++) { + int name = MONTH_NAMES [i]; + int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, name, buffer, buffer.length ()); + if (size is 0) { + buffer = new TCHAR (getCodePage (), size); + OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, name, buffer, buffer.length ()); + } + rect.left = rect.top = rect.right = rect.bottom = 0; + OS.DrawText (hDC, buffer, size, rect, flags); + if (rect.right - rect.left > width) { + width = rect.right - rect.left; + widest = i; + } + height = Math.max(height, rect.bottom - rect.top); + } + systime.wMonth = (short) (widest + 1); + + /* Determine the widest/tallest date string in the widest month of the widest year. */ + int dwFlags = ((style & DWT.MEDIUM) !is 0) ? OS.DATE_SHORTDATE : ((style & DWT.SHORT) !is 0) ? OS.DATE_YEARMONTH : OS.DATE_LONGDATE; + width = 0; + for (short i = 1; i <= MAX_DAY; i++) { + systime.wDay = i; + int size = OS.GetDateFormat(OS.LOCALE_USER_DEFAULT, dwFlags, systime, null, buffer, buffer.length ()); + if (size is 0) { + buffer = new TCHAR (getCodePage (), size); + OS.GetDateFormat(OS.LOCALE_USER_DEFAULT, dwFlags, systime, null, buffer, buffer.length ()); + } + rect.left = rect.top = rect.right = rect.bottom = 0; + OS.DrawText (hDC, buffer, size, rect, flags); + width = Math.max(width, rect.right - rect.left); + height = Math.max(height, rect.bottom - rect.top); + if ((style & DWT.SHORT) !is 0) break; + } + } else if ((style & DWT.TIME) !is 0) { + /* Determine the widest/tallest hour string. This code allows for the possibility of ligatures. */ + int dwFlags = ((style & DWT.SHORT) !is 0) ? OS.TIME_NOSECONDS : 0; + short widest = 0; + int max = is24HourTime () ? MAX_24HOUR : MAX_12HOUR; + for (short i = 0; i < max; i++) { + systime.wHour = i; + int size = OS.GetTimeFormat(OS.LOCALE_USER_DEFAULT, dwFlags, systime, null, buffer, buffer.length ()); + if (size is 0) { + buffer = new TCHAR (getCodePage (), size); + OS.GetTimeFormat(OS.LOCALE_USER_DEFAULT, dwFlags, systime, null, buffer, buffer.length ()); + } + rect.left = rect.top = rect.right = rect.bottom = 0; + OS.DrawText (hDC, buffer, size, rect, flags); + if (rect.right - rect.left > width) { + width = rect.right - rect.left; + widest = i; + } + height = Math.max(height, rect.bottom - rect.top); + } + systime.wHour = widest; + + /* Determine the widest/tallest minute and second string. */ + width = widest = 0; + for (short i = 0; i < MAX_MINUTE; i++) { + systime.wMinute = i; + int size = OS.GetTimeFormat(OS.LOCALE_USER_DEFAULT, dwFlags, systime, null, buffer, buffer.length ()); + if (size is 0) { + buffer = new TCHAR (getCodePage (), size); + OS.GetTimeFormat(OS.LOCALE_USER_DEFAULT, dwFlags, systime, null, buffer, buffer.length ()); + } + rect.left = rect.top = rect.right = rect.bottom = 0; + OS.DrawText (hDC, buffer, size, rect, flags); + if (rect.right - rect.left > width) { + width = rect.right - rect.left; + widest = i; + } + height = Math.max(height, rect.bottom - rect.top); + } + systime.wMinute = widest; + systime.wSecond = widest; + + /* Determine the widest/tallest time string for the widest hour, widest minute, and if applicable, widest second. */ + int size = OS.GetTimeFormat(OS.LOCALE_USER_DEFAULT, dwFlags, systime, null, buffer, buffer.length ()); + if (size is 0) { + buffer = new TCHAR (getCodePage (), size); + OS.GetTimeFormat(OS.LOCALE_USER_DEFAULT, dwFlags, systime, null, buffer, buffer.length ()); + } + rect.left = rect.top = rect.right = rect.bottom = 0; + OS.DrawText (hDC, buffer, size, rect, flags); + width = rect.right - rect.left; + height = Math.max(height, rect.bottom - rect.top); + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + int upDownWidth = OS.GetSystemMetrics (OS.SM_CXVSCROLL); + width += upDownWidth + MARGIN; + int upDownHeight = OS.GetSystemMetrics (OS.SM_CYVSCROLL); + // TODO: On Vista, can send DTM_GETDATETIMEPICKERINFO to ask the Edit control what its margins are + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) upDownHeight += 7; + height = Math.max (height, upDownHeight); + } + } + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + int border = getBorderWidth (); + width += border * 2; + height += border * 2; + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + state &= ~(CANVAS | THEME_BACKGROUND); +} + +int defaultBackground () { + return OS.GetSysColor (OS.COLOR_WINDOW); +} + +String getComputeSizeString () { + // TODO: Not currently used but might need for WinCE + if ((style & DWT.DATE) !is 0) { + if ((style & DWT.SHORT) !is 0) return getCustomShortDateFormat (); + if ((style & DWT.MEDIUM) !is 0) return getShortDateFormat (); + if ((style & DWT.LONG) !is 0) return getLongDateFormat (); + } + if ((style & DWT.TIME) !is 0) { + if ((style & DWT.SHORT) !is 0) return getCustomShortTimeFormat (); + return getTimeFormat (); + } + return ""; +} + +String getCustomShortDateFormat () { + if (true) { + TCHAR tchar = new TCHAR (getCodePage (), 80); + int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, OS.LOCALE_SYEARMONTH, tchar, 80); + return size !is 0 ? tchar.toString (0, size - 1) : "M/yyyy"; //$NON-NLS-1$ + } + + //TODO: Not currently used, but may need for WinCE (or if numeric short date is required) + StringBuffer buffer = new StringBuffer (getShortDateFormat ()); + int length = buffer.length (); + bool inQuotes = false; + int start = 0, end = 0; + while (start < length) { + char ch = buffer.charAt (start); + if (ch is SINGLE_QUOTE) inQuotes = !inQuotes; + else if (ch is DAY_FORMAT_CONSTANT && !inQuotes) { + end = start + 1; + while (end < length && buffer.charAt (end) is DAY_FORMAT_CONSTANT) end++; + int ordering = getShortDateFormatOrdering (); + switch (ordering) { + case MONTH_DAY_YEAR: + // skip the following separator + while (end < length && buffer.charAt (end) !is YEAR_FORMAT_CONSTANT) end++; + break; + case DAY_MONTH_YEAR: + // skip the following separator + while (end < length && buffer.charAt (end) !is MONTH_FORMAT_CONSTANT) end++; + break; + case YEAR_MONTH_DAY: + // skip the preceding separator + while (start > 0 && buffer.charAt (start) !is MONTH_FORMAT_CONSTANT) start--; + break; + } + break; + } + start++; + } + if (start < end) buffer.delete (start, end); + return buffer.toString (); +} + +String getCustomShortTimeFormat () { + StringBuffer buffer = new StringBuffer (getTimeFormat ()); + int length = buffer.length (); + bool inQuotes = false; + int start = 0, end = 0; + while (start < length) { + char ch = buffer.charAt (start); + if (ch is SINGLE_QUOTE) inQuotes = !inQuotes; + else if (ch is SECONDS_FORMAT_CONSTANT && !inQuotes) { + end = start + 1; + while (end < length && buffer.charAt (end) is SECONDS_FORMAT_CONSTANT) end++; + // skip the preceding separator + while (start > 0 && buffer.charAt (start) !is MINUTES_FORMAT_CONSTANT) start--; + start++; + break; + } + start++; + } + if (start < end) buffer.delete (start, end); + return buffer.toString (); +} + +String getLongDateFormat () { + //TODO: Not currently used, but may need for WinCE + TCHAR tchar = new TCHAR (getCodePage (), 80); + int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, OS.LOCALE_SLONGDATE, tchar, 80); + return size > 0 ? tchar.toString (0, size - 1) : "dddd, MMMM dd, yyyy"; //$NON-NLS-1$ +} + +String getShortDateFormat () { + //TODO: Not currently used, but may need for WinCE + TCHAR tchar = new TCHAR (getCodePage (), 80); + //TODO: May need to OR with LOCALE_ICENTURY + int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, OS.LOCALE_SSHORTDATE, tchar, 80); + return size > 0 ? tchar.toString (0, size - 1) : "M/d/yyyy"; //$NON-NLS-1$ +} + +int getShortDateFormatOrdering () { + //TODO: Not currently used, but may need for WinCE + TCHAR tchar = new TCHAR (getCodePage (), 4); + int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, OS.LOCALE_IDATE, tchar, 4); + if (size > 0) { + String number = tchar.toString (0, size - 1); + return Integer.parseInt (number); + } + return 0; +} + +String getTimeFormat () { + TCHAR tchar = new TCHAR (getCodePage (), 80); + int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, OS.LOCALE_STIMEFORMAT, tchar, 80); + return size > 0 ? tchar.toString (0, size - 1) : "h:mm:ss tt"; //$NON-NLS-1$ +} + +bool is24HourTime () { + TCHAR tchar = new TCHAR (getCodePage (), 4); + int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, OS.LOCALE_ITIME, tchar, 4); + if (size > 0) { + String number = tchar.toString (0, size - 1); + return Integer.parseInt (number) !is 0; + } + return true; +} + +/** + * Returns the receiver's date, or day of the month. + * <p> + * The first day of the month is 1, and the last day depends on the month and year. + * </p> + * + * @return a positive integer beginning with 1 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getDay () { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + return systime.wDay; +} + +/** + * Returns the receiver's hours. + * <p> + * Hours is an integer between 0 and 23. + * </p> + * + * @return an integer between 0 and 23 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getHours () { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + return systime.wHour; +} + +/** + * Returns the receiver's minutes. + * <p> + * Minutes is an integer between 0 and 59. + * </p> + * + * @return an integer between 0 and 59 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMinutes () { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + return systime.wMinute; +} + +/** + * Returns the receiver's month. + * <p> + * The first month of the year is 0, and the last month is 11. + * </p> + * + * @return an integer between 0 and 11 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMonth () { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + return systime.wMonth - 1; +} + +String getNameText () { + return "DateTime"; +} + +/** + * Returns the receiver's seconds. + * <p> + * Seconds is an integer between 0 and 59. + * </p> + * + * @return an integer between 0 and 59 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSeconds () { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + return systime.wSecond; +} + +/** + * Returns the receiver's year. + * <p> + * The first year is 1752 and the last year is 9999. + * </p> + * + * @return an integer between 1752 and 9999 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getYear () { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + return systime.wYear; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection, listener); +} + +/** + * Sets the receiver's date, or day of the month, to the specified day. + * <p> + * The first day of the month is 1, and the last day depends on the month and year. + * </p> + * + * @param day a positive integer beginning with 1 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setDay (int day) { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_SETCURSEL : OS.DTM_SETSYSTEMTIME; + systime.wDay = (short)day; + OS.SendMessage (handle, msg, 0, systime); +} + +/** + * Sets the receiver's hours. + * <p> + * Hours is an integer between 0 and 23. + * </p> + * + * @param hours an integer between 0 and 23 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setHours (int hours) { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_SETCURSEL : OS.DTM_SETSYSTEMTIME; + systime.wHour = (short)hours; + OS.SendMessage (handle, msg, 0, systime); +} + +/** + * Sets the receiver's minutes. + * <p> + * Minutes is an integer between 0 and 59. + * </p> + * + * @param minutes an integer between 0 and 59 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMinutes (int minutes) { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_SETCURSEL : OS.DTM_SETSYSTEMTIME; + systime.wMinute = (short)minutes; + OS.SendMessage (handle, msg, 0, systime); +} + +/** + * Sets the receiver's month. + * <p> + * The first month of the year is 0, and the last month is 11. + * </p> + * + * @param month an integer between 0 and 11 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMonth (int month) { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_SETCURSEL : OS.DTM_SETSYSTEMTIME; + systime.wMonth = (short)(month + 1); + OS.SendMessage (handle, msg, 0, systime); +} + +/** + * Sets the receiver's seconds. + * <p> + * Seconds is an integer between 0 and 59. + * </p> + * + * @param seconds an integer between 0 and 59 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSeconds (int seconds) { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_SETCURSEL : OS.DTM_SETSYSTEMTIME; + systime.wSecond = (short)seconds; + OS.SendMessage (handle, msg, 0, systime); +} + +/** + * Sets the receiver's year. + * <p> + * The first year is 1752 and the last year is 9999. + * </p> + * + * @param year an integer between 1752 and 9999 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setYear (int year) { + checkWidget (); + SYSTEMTIME systime = new SYSTEMTIME (); + int msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_GETCURSEL : OS.DTM_GETSYSTEMTIME; + OS.SendMessage (handle, msg, 0, systime); + msg = (style & DWT.CALENDAR) !is 0 ? OS.MCM_SETCURSEL : OS.DTM_SETSYSTEMTIME; + systime.wYear = (short)year; + OS.SendMessage (handle, msg, 0, systime); +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.WS_TABSTOP; + if ((style & DWT.CALENDAR) !is 0) return bits | OS.MCS_NOTODAY; + /* + * Bug in Windows: When WS_CLIPCHILDREN is set in a + * Date and Time Picker, the widget draws on top of + * the updown control. The fix is to clear the bits. + */ + bits &= ~OS.WS_CLIPCHILDREN; + if ((style & DWT.TIME) !is 0) bits |= OS.DTS_TIMEFORMAT; + if ((style & DWT.DATE) !is 0) bits |= ((style & DWT.MEDIUM) !is 0 ? OS.DTS_SHORTDATECENTURYFORMAT : OS.DTS_LONGDATEFORMAT) | OS.DTS_UPDOWN; + return bits; +} + +TCHAR windowClass () { + return (style & DWT.CALENDAR) !is 0 ? CalendarClass : DateTimeClass; +} + +int windowProc () { + return (style & DWT.CALENDAR) !is 0 ? CalendarProc : DateTimeProc; +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + switch (hdr.code) { + case OS.MCN_SELCHANGE: //SENT WHEN YOU SET IT? + case OS.DTN_DATETIMECHANGE: + sendEvent (DWT.Selection); + break; + } + return super.wmNotifyChild (hdr, wParam, lParam); +} +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Decorations.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1824 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Decorations; + +import dwt.widgets.Canvas; +class Decorations : Canvas { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Image; +import dwt.graphics.ImageData; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.ACCEL; +import dwt.internal.win32.CREATESTRUCT; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MENUITEMINFO; +import dwt.internal.win32.MSG; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.STARTUPINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WINDOWPLACEMENT; +import dwt.internal.win32.WINDOWPOS; + +/** + * Instances of this class provide the appearance and + * behavior of <code>Shells</code>, but are not top + * level shells or dialogs. Class <code>Shell</code> + * shares a significant amount of code with this class, + * and is a subclass. + * <p> + * IMPORTANT: This class was intended to be abstract and + * should <em>never</em> be referenced or instantiated. + * Instead, the class <code>Shell</code> should be used. + * </p> + * <p> + * Instances are always displayed in one of the maximized, + * minimized or normal states: + * <ul> + * <li> + * When an instance is marked as <em>maximized</em>, the + * window manager will typically resize it to fill the + * entire visible area of the display, and the instance + * is usually put in a state where it can not be resized + * (even if it has style <code>RESIZE</code>) until it is + * no longer maximized. + * </li><li> + * When an instance is in the <em>normal</em> state (neither + * maximized or minimized), its appearance is controlled by + * the style constants which were specified when it was created + * and the restrictions of the window manager (see below). + * </li><li> + * When an instance has been marked as <em>minimized</em>, + * its contents (client area) will usually not be visible, + * and depending on the window manager, it may be + * "iconified" (that is, replaced on the desktop by a small + * simplified representation of itself), relocated to a + * distinguished area of the screen, or hidden. Combinations + * of these changes are also possible. + * </li> + * </ul> + * </p> + * Note: The styles supported by this class must be treated + * as <em>HINT</em>s, since the window manager for the + * desktop on which the instance is visible has ultimate + * control over the appearance and behavior of decorations. + * For example, some window managers only support resizable + * windows and will always assume the RESIZE style, even if + * it is not set. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>BORDER, CLOSE, MIN, MAX, NO_TRIM, RESIZE, TITLE, ON_TOP, TOOL</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * Class <code>DWT</code> provides two "convenience constants" + * for the most commonly required style combinations: + * <dl> + * <dt><code>SHELL_TRIM</code></dt> + * <dd> + * the result of combining the constants which are required + * to produce a typical application top level shell: (that + * is, <code>CLOSE | TITLE | MIN | MAX | RESIZE</code>) + * </dd> + * <dt><code>DIALOG_TRIM</code></dt> + * <dd> + * the result of combining the constants which are required + * to produce a typical application dialog shell: (that + * is, <code>TITLE | CLOSE | BORDER</code>) + * </dd> + * </dl> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + * + * @see #getMinimized + * @see #getMaximized + * @see Shell + * @see DWT + */ + +public class Decorations extends Canvas { + Image image, smallImage, largeImage; + Image [] images; + Menu menuBar; + Menu [] menus; + Control savedFocus; + Button defaultButton, saveDefault; + int swFlags, hAccel, nAccel; + bool moved, resized, opened; + int oldX = OS.CW_USEDEFAULT, oldY = OS.CW_USEDEFAULT; + int oldWidth = OS.CW_USEDEFAULT, oldHeight = OS.CW_USEDEFAULT; + +/** + * Prevents uninitialized instances from being created outside the package. + */ +Decorations () { +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#BORDER + * @see DWT#CLOSE + * @see DWT#MIN + * @see DWT#MAX + * @see DWT#RESIZE + * @see DWT#TITLE + * @see DWT#NO_TRIM + * @see DWT#SHELL_TRIM + * @see DWT#DIALOG_TRIM + * @see DWT#ON_TOP + * @see DWT#TOOL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Decorations (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +void _setMaximized (bool maximized) { + swFlags = maximized ? OS.SW_SHOWMAXIMIZED : OS.SW_RESTORE; + if (OS.IsWinCE) { + /* + * Note: WinCE does not support SW_SHOWMAXIMIZED and SW_RESTORE. The + * workaround is to resize the window to fit the parent client area. + */ + if (maximized) { + RECT rect = new RECT (); + OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + if (OS.IsPPC) { + /* Leave space for the menu bar */ + if (menuBar !is null) { + int hwndCB = menuBar.hwndCB; + RECT rectCB = new RECT (); + OS.GetWindowRect (hwndCB, rectCB); + height -= rectCB.bottom - rectCB.top; + } + } + int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; + SetWindowPos (handle, 0, rect.left, rect.top, width, height, flags); + } + } else { + if (!OS.IsWindowVisible (handle)) return; + if (maximized is OS.IsZoomed (handle)) return; + OS.ShowWindow (handle, swFlags); + OS.UpdateWindow (handle); + } +} + +void _setMinimized (bool minimized) { + if (OS.IsWinCE) return; + swFlags = minimized ? OS.SW_SHOWMINNOACTIVE : OS.SW_RESTORE; + if (!OS.IsWindowVisible (handle)) return; + if (minimized is OS.IsIconic (handle)) return; + int flags = swFlags; + if (flags is OS.SW_SHOWMINNOACTIVE && handle is OS.GetActiveWindow ()) { + flags = OS.SW_MINIMIZE; + } + OS.ShowWindow (handle, flags); + OS.UpdateWindow (handle); +} + +void addMenu (Menu menu) { + if (menus is null) menus = new Menu [4]; + for (int i=0; i<menus.length; i++) { + if (menus [i] is null) { + menus [i] = menu; + return; + } + } + Menu [] newMenus = new Menu [menus.length + 4]; + newMenus [menus.length] = menu; + System.arraycopy (menus, 0, newMenus, 0, menus.length); + menus = newMenus; +} + +void bringToTop () { + /* + * This code is intentionally commented. On some platforms, + * the ON_TOP style creates a shell that will stay on top + * of every other shell on the desktop. Using SetWindowPos () + * with HWND_TOP caused problems on Windows 98 so this code is + * commented out until this functionality is specified and + * the problems are fixed. + */ +// if ((style & DWT.ON_TOP) !is 0) { +// int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; +// OS.SetWindowPos (handle, OS.HWND_TOP, 0, 0, 0, 0, flags); +// } else { + OS.BringWindowToTop (handle); + // widget could be disposed at this point +// } +} + +static int checkStyle (int style) { + if ((style & DWT.NO_TRIM) !is 0) { + style &= ~(DWT.CLOSE | DWT.TITLE | DWT.MIN | DWT.MAX | DWT.RESIZE | DWT.BORDER); + } + if (OS.IsWinCE) { + /* + * Feature in WinCE PPC. WS_MINIMIZEBOX or WS_MAXIMIZEBOX + * are not supposed to be used. If they are, the result + * is a button which does not repaint correctly. The fix + * is to remove this style. + */ + if ((style & DWT.MIN) !is 0) style &= ~DWT.MIN; + if ((style & DWT.MAX) !is 0) style &= ~DWT.MAX; + return style; + } + if ((style & (DWT.MENU | DWT.MIN | DWT.MAX | DWT.CLOSE)) !is 0) { + style |= DWT.TITLE; + } + + /* + * If either WS_MINIMIZEBOX or WS_MAXIMIZEBOX are set, + * we must also set WS_SYSMENU or the buttons will not + * appear. + */ + if ((style & (DWT.MIN | DWT.MAX)) !is 0) style |= DWT.CLOSE; + + /* + * Both WS_SYSMENU and WS_CAPTION must be set in order + * to for the system menu to appear. + */ + if ((style & DWT.CLOSE) !is 0) style |= DWT.TITLE; + + /* + * Bug in Windows. The WS_CAPTION style must be + * set when the window is resizable or it does not + * draw properly. + */ + /* + * This code is intentionally commented. It seems + * that this problem originally in Windows 3.11, + * has been fixed in later versions. Because the + * exact nature of the drawing problem is unknown, + * keep the commented code around in case it comes + * back. + */ +// if ((style & DWT.RESIZE) !is 0) style |= DWT.TITLE; + + return style; +} + +void checkBorder () { + /* Do nothing */ +} + +void checkOpened () { + if (!opened) resized = false; +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.DefMDIChildProc (hwnd, msg, wParam, lParam); +} + +void closeWidget () { + Event event = new Event (); + sendEvent (DWT.Close, event); + if (event.doit && !isDisposed ()) dispose (); +} + +int compare (ImageData data1, ImageData data2, int width, int height, int depth) { + int value1 = Math.abs (data1.width - width), value2 = Math.abs (data2.width - width); + if (value1 is value2) { + int transparent1 = data1.getTransparencyType (); + int transparent2 = data2.getTransparencyType (); + if (transparent1 is transparent2) { + if (data1.depth is data2.depth) return 0; + return data1.depth > data2.depth && data1.depth <= depth ? -1 : 1; + } + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) { + if (transparent1 is DWT.TRANSPARENCY_ALPHA) return -1; + if (transparent2 is DWT.TRANSPARENCY_ALPHA) return 1; + } + if (transparent1 is DWT.TRANSPARENCY_MASK) return -1; + if (transparent2 is DWT.TRANSPARENCY_MASK) return 1; + if (transparent1 is DWT.TRANSPARENCY_PIXEL) return -1; + if (transparent2 is DWT.TRANSPARENCY_PIXEL) return 1; + return 0; + } + return value1 < value2 ? -1 : 1; +} + +Control computeTabGroup () { + return this; +} + +Control computeTabRoot () { + return this; +} + +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + + /* Get the size of the trimmings */ + RECT rect = new RECT (); + OS.SetRect (rect, x, y, x + width, y + height); + int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE); + int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + bool hasMenu = OS.IsWinCE ? false : OS.GetMenu (handle) !is 0; + OS.AdjustWindowRectEx (rect, bits1, hasMenu, bits2); + + /* Get the size of the scroll bars */ + if (horizontalBar !is null) rect.bottom += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + if (verticalBar !is null) rect.right += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + + /* Compute the height of the menu bar */ + if (hasMenu) { + RECT testRect = new RECT (); + OS.SetRect (testRect, 0, 0, rect.right - rect.left, rect.bottom - rect.top); + OS.SendMessage (handle, OS.WM_NCCALCSIZE, 0, testRect); + while ((testRect.bottom - testRect.top) < height) { + if (testRect.bottom - testRect.top is 0) break; + rect.top -= OS.GetSystemMetrics (OS.SM_CYMENU) - OS.GetSystemMetrics (OS.SM_CYBORDER); + OS.SetRect (testRect, 0, 0, rect.right - rect.left, rect.bottom - rect.top); + OS.SendMessage (handle, OS.WM_NCCALCSIZE, 0, testRect); + } + } + return new Rectangle (rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); +} + +void createAccelerators () { + hAccel = nAccel = 0; + int maxAccel = 0; + MenuItem [] items = display.items; + if (menuBar is null || items is null) { + if (!OS.IsPPC) return; + maxAccel = 1; + } else { + maxAccel = OS.IsPPC ? items.length + 1 : items.length; + } + ACCEL accel = new ACCEL (); + byte [] buffer1 = new byte [ACCEL.sizeof]; + byte [] buffer2 = new byte [maxAccel * ACCEL.sizeof]; + if (menuBar !is null && items !is null) { + for (int i=0; i<items.length; i++) { + MenuItem item = items [i]; + if (item !is null && item.accelerator !is 0) { + Menu menu = item.parent; + if (menu.parent is this) { + while (menu !is null && menu !is menuBar) { + menu = menu.getParentMenu (); + } + if (menu is menuBar) { + item.fillAccel (accel); + OS.MoveMemory (buffer1, accel, ACCEL.sizeof); + System.arraycopy (buffer1, 0, buffer2, nAccel * ACCEL.sizeof, ACCEL.sizeof); + nAccel++; + } + } + } + } + } + if (OS.IsPPC) { + /* + * Note on WinCE PPC. Close the shell when user taps CTRL-Q. + * IDOK represents the "Done Button" which also closes the shell. + */ + accel.fVirt = (byte) (OS.FVIRTKEY | OS.FCONTROL); + accel.key = (short) 'Q'; + accel.cmd = (short) OS.IDOK; + OS.MoveMemory (buffer1, accel, ACCEL.sizeof); + System.arraycopy (buffer1, 0, buffer2, nAccel * ACCEL.sizeof, ACCEL.sizeof); + nAccel++; + } + if (nAccel !is 0) hAccel = OS.CreateAcceleratorTable (buffer2, nAccel); +} + +void createHandle () { + super.createHandle (); + if (parent !is null || ((style & DWT.TOOL) !is 0)) { + setParent (); + setSystemMenu (); + } + /* + * Set the default icon for the shell to IDI_APPLICATION. + * This is not necessary for native applications but later + * versions of Java set the icon in javaw.exe instead of + * leaving the default. + * + * NOTE: The icon is not leaked. It is shared within + * the process by all threads and is released when the + * process exits. + */ + if ((state & FOREIGN_HANDLE) is 0) { + if (!OS.IsWinCE) { + int hIcon = OS.LoadIcon (0, OS.IDI_APPLICATION); + OS.SendMessage (handle, OS.WM_SETICON, OS.ICON_SMALL, hIcon); + } + } +} + +void createWidget () { + super.createWidget (); + swFlags = OS.IsWinCE ? OS.SW_SHOWMAXIMIZED : OS.SW_SHOWNOACTIVATE; + hAccel = -1; +} + +void destroyAccelerators () { + if (hAccel !is 0 && hAccel !is -1) OS.DestroyAcceleratorTable (hAccel); + hAccel = -1; +} + +public void dispose () { + if (isDisposed()) return; + if (!isValidThread ()) error (DWT.ERROR_THREAD_INVALID_ACCESS); + if (!(this instanceof Shell)) { + if (!traverseDecorations (true)) { + Shell shell = getShell (); + shell.setFocus (); + } + setVisible (false); + } + super.dispose (); +} + +Menu findMenu (int hMenu) { + if (menus is null) return null; + for (int i=0; i<menus.length; i++) { + Menu menu = menus [i]; + if (menu !is null && hMenu is menu.handle) return menu; + } + return null; +} + +void fixDecorations (Decorations newDecorations, Control control, Menu [] menus) { + if (this is newDecorations) return; + if (control is savedFocus) savedFocus = null; + if (control is defaultButton) defaultButton = null; + if (control is saveDefault) saveDefault = null; + if (menus is null) return; + Menu menu = control.menu; + if (menu !is null) { + int index = 0; + while (index <menus.length) { + if (menus [index] is menu) { + control.setMenu (null); + return; + } + index++; + } + menu.fixMenus (newDecorations); + destroyAccelerators (); + newDecorations.destroyAccelerators (); + } +} + +public Rectangle getBounds () { + checkWidget (); + if (!OS.IsWinCE) { + if (OS.IsIconic (handle)) { + WINDOWPLACEMENT lpwndpl = new WINDOWPLACEMENT (); + lpwndpl.length = WINDOWPLACEMENT.sizeof; + OS.GetWindowPlacement (handle, lpwndpl); + int width = lpwndpl.right - lpwndpl.left; + int height = lpwndpl.bottom - lpwndpl.top; + return new Rectangle (lpwndpl.left, lpwndpl.top, width, height); + } + } + return super.getBounds (); +} + +public Rectangle getClientArea () { + checkWidget (); + /* + * Note: The CommandBar is part of the client area, + * not the trim. Applications don't expect this so + * subtract the height of the CommandBar. + */ + if (OS.IsHPC) { + Rectangle rect = super.getClientArea (); + if (menuBar !is null) { + int hwndCB = menuBar.hwndCB; + int height = OS.CommandBar_Height (hwndCB); + rect.y += height; + rect.height = Math.max (0, rect.height - height); + } + return rect; + } + if (!OS.IsWinCE) { + if (OS.IsIconic (handle)) { + WINDOWPLACEMENT lpwndpl = new WINDOWPLACEMENT (); + lpwndpl.length = WINDOWPLACEMENT.sizeof; + OS.GetWindowPlacement (handle, lpwndpl); + int width = lpwndpl.right - lpwndpl.left; + int height = lpwndpl.bottom - lpwndpl.top; + /* + * Feature in Windows. For some reason WM_NCCALCSIZE does + * not compute the client area when the window is minimized. + * The fix is to compute it using AdjustWindowRectEx() and + * GetSystemMetrics(). + * + * NOTE: This code fails to compute the correct client area + * for a minimized window where the menu bar would wrap were + * the window restored. There is no fix for this problem at + * this time. + */ + if (horizontalBar !is null) width -= OS.GetSystemMetrics (OS.SM_CYHSCROLL); + if (verticalBar !is null) height -= OS.GetSystemMetrics (OS.SM_CXVSCROLL); + RECT rect = new RECT (); + int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE); + int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + bool hasMenu = OS.IsWinCE ? false : OS.GetMenu (handle) !is 0; + OS.AdjustWindowRectEx (rect, bits1, hasMenu, bits2); + width = Math.max (0, width - (rect.right - rect.left)); + height = Math.max (0, height - (rect.bottom - rect.top)); + return new Rectangle (0, 0, width, height); + } + } + return super.getClientArea (); +} + +/** + * Returns the receiver's default button if one had + * previously been set, otherwise returns null. + * + * @return the default button or null + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setDefaultButton(Button) + */ +public Button getDefaultButton () { + checkWidget (); + return defaultButton; +} + +/** + * Returns the receiver's image if it had previously been + * set using <code>setImage()</code>. The image is typically + * displayed by the window manager when the instance is + * marked as iconified, and may also be displayed somewhere + * in the trim when the instance is in normal or maximized + * states. + * <p> + * Note: This method will return null if called before + * <code>setImage()</code> is called. It does not provide + * access to a window manager provided, "default" image + * even if one exists. + * </p> + * + * @return the image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Image getImage () { + checkWidget (); + return image; +} + +/** + * Returns the receiver's images if they had previously been + * set using <code>setImages()</code>. Images are typically + * displayed by the window manager when the instance is + * marked as iconified, and may also be displayed somewhere + * in the trim when the instance is in normal or maximized + * states. Depending where the icon is displayed, the platform + * chooses the icon with the "best" attributes. It is expected + * that the array will contain the same icon rendered at different + * sizes, with different depth and transparency attributes. + * + * <p> + * Note: This method will return an empty array if called before + * <code>setImages()</code> is called. It does not provide + * access to a window manager provided, "default" image + * even if one exists. + * </p> + * + * @return the images + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public Image [] getImages () { + checkWidget (); + if (images is null) return new Image [0]; + Image [] result = new Image [images.length]; + System.arraycopy (images, 0, result, 0, images.length); + return result; +} + +public Point getLocation () { + checkWidget (); + if (!OS.IsWinCE) { + if (OS.IsIconic (handle)) { + WINDOWPLACEMENT lpwndpl = new WINDOWPLACEMENT (); + lpwndpl.length = WINDOWPLACEMENT.sizeof; + OS.GetWindowPlacement (handle, lpwndpl); + return new Point (lpwndpl.left, lpwndpl.top); + } + } + return super.getLocation (); +} + +/** + * Returns <code>true</code> if the receiver is currently + * maximized, and false otherwise. + * <p> + * + * @return the maximized state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setMaximized + */ +public bool getMaximized () { + checkWidget (); + if (OS.IsWinCE) return swFlags is OS.SW_SHOWMAXIMIZED; + if (OS.IsWindowVisible (handle)) return OS.IsZoomed (handle); + return swFlags is OS.SW_SHOWMAXIMIZED; +} + +/** + * Returns the receiver's menu bar if one had previously + * been set, otherwise returns null. + * + * @return the menu bar or null + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Menu getMenuBar () { + checkWidget (); + return menuBar; +} + +/** + * Returns <code>true</code> if the receiver is currently + * minimized, and false otherwise. + * <p> + * + * @return the minimized state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setMinimized + */ +public bool getMinimized () { + checkWidget (); + if (OS.IsWinCE) return false; + if (OS.IsWindowVisible (handle)) return OS.IsIconic (handle); + return swFlags is OS.SW_SHOWMINNOACTIVE; +} + +String getNameText () { + return getText (); +} + +public Point getSize () { + checkWidget (); + if (!OS.IsWinCE) { + if (OS.IsIconic (handle)) { + WINDOWPLACEMENT lpwndpl = new WINDOWPLACEMENT (); + lpwndpl.length = WINDOWPLACEMENT.sizeof; + OS.GetWindowPlacement (handle, lpwndpl); + int width = lpwndpl.right - lpwndpl.left; + int height = lpwndpl.bottom - lpwndpl.top; + return new Point (width, height); + } + } + return super.getSize (); +} + +/** + * Returns the receiver's text, which is the string that the + * window manager will typically display as the receiver's + * <em>title</em>. If the text has not previously been set, + * returns an empty string. + * + * @return the text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText () { + checkWidget (); + int length = OS.GetWindowTextLength (handle); + if (length is 0) return ""; + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, length + 1); + OS.GetWindowText (handle, buffer, length + 1); + return buffer.toString (0, length); +} + +public bool isReparentable () { + checkWidget (); + /* + * Feature in Windows. Calling SetParent() for a shell causes + * a kind of fake MDI to happen. It doesn't work well on Windows + * and is not supported on the other platforms. The fix is to + * disallow the SetParent(). + */ + return false; +} + +bool isTabGroup () { + /* + * Can't test WS_TAB bits because they are the same as WS_MAXIMIZEBOX. + */ + return true; +} + +bool isTabItem () { + /* + * Can't test WS_TAB bits because they are the same as WS_MAXIMIZEBOX. + */ + return false; +} + +Decorations menuShell () { + return this; +} + +void releaseChildren (bool destroy) { + if (menuBar !is null) { + menuBar.release (false); + menuBar = null; + } + super.releaseChildren (destroy); + if (menus !is null) { + for (int i=0; i<menus.length; i++) { + Menu menu = menus [i]; + if (menu !is null && !menu.isDisposed ()) { + menu.dispose (); + } + } + menus = null; + } +} + +void releaseWidget () { + super.releaseWidget (); + if (smallImage !is null) smallImage.dispose (); + if (largeImage !is null) largeImage.dispose (); + smallImage = largeImage = image = null; + images = null; + savedFocus = null; + defaultButton = saveDefault = null; + if (hAccel !is 0 && hAccel !is -1) OS.DestroyAcceleratorTable (hAccel); + hAccel = -1; +} + +void removeMenu (Menu menu) { + if (menus is null) return; + for (int i=0; i<menus.length; i++) { + if (menus [i] is menu) { + menus [i] = null; + return; + } + } +} + +bool restoreFocus () { + if (display.ignoreRestoreFocus) return true; + if (savedFocus !is null && savedFocus.isDisposed ()) savedFocus = null; + if (savedFocus !is null && savedFocus.setSavedFocus ()) return true; + /* + * This code is intentionally commented. When no widget + * has been given focus, some platforms give focus to the + * default button. Windows doesn't do this. + */ +// if (defaultButton !is null && !defaultButton.isDisposed ()) { +// if (defaultButton.setFocus ()) return true; +// } + return false; +} + +void saveFocus () { + Control control = display._getFocusControl (); + if (control !is null && control !is this && this is control.menuShell ()) { + setSavedFocus (control); + } +} + +void setBounds (int x, int y, int width, int height, int flags, bool defer) { + if (OS.IsWinCE) { + swFlags = OS.SW_RESTORE; + } else { + if (OS.IsIconic (handle)) { + setPlacement (x, y, width, height, flags); + return; + } + } + forceResize (); + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + bool sameOrigin = true; + if ((OS.SWP_NOMOVE & flags) is 0) { + sameOrigin = rect.left is x && rect.top is y; + if (!sameOrigin) moved = true; + } + bool sameExtent = true; + if ((OS.SWP_NOSIZE & flags) is 0) { + sameExtent = rect.right - rect.left is width && rect.bottom - rect.top is height; + if (!sameExtent) resized = true; + } + if (!OS.IsWinCE) { + if (OS.IsZoomed (handle)) { + if (sameOrigin && sameExtent) return; + setPlacement (x, y, width, height, flags); + _setMaximized (false); + return; + } + } + super.setBounds (x, y, width, height, flags, defer); +} + +/** + * If the argument is not null, sets the receiver's default + * button to the argument, and if the argument is null, sets + * the receiver's default button to the first button which + * was set as the receiver's default button (called the + * <em>saved default button</em>). If no default button had + * previously been set, or the saved default button was + * disposed, the receiver's default button will be set to + * null. + * <p> + * The default button is the button that is selected when + * the receiver is active and the user presses ENTER. + * </p> + * + * @param button the new default button + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the button has been disposed</li> + * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setDefaultButton (Button button) { + checkWidget (); + if (button !is null) { + if (button.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + if (button.menuShell () !is this) error(DWT.ERROR_INVALID_PARENT); + } + setDefaultButton (button, true); +} + +void setDefaultButton (Button button, bool save) { + if (button is null) { + if (defaultButton is saveDefault) { + if (save) saveDefault = null; + return; + } + } else { + if ((button.style & DWT.PUSH) is 0) return; + if (button is defaultButton) return; + } + if (defaultButton !is null) { + if (!defaultButton.isDisposed ()) defaultButton.setDefault (false); + } + if ((defaultButton = button) is null) defaultButton = saveDefault; + if (defaultButton !is null) { + if (!defaultButton.isDisposed ()) defaultButton.setDefault (true); + } + if (save) saveDefault = defaultButton; + if (saveDefault !is null && saveDefault.isDisposed ()) saveDefault = null; +} + +/** + * Sets the receiver's image to the argument, which may + * be null. The image is typically displayed by the window + * manager when the instance is marked as iconified, and + * may also be displayed somewhere in the trim when the + * instance is in normal or maximized states. + * + * @param image the new image (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (Image image) { + checkWidget (); + if (image !is null && image.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + this.image = image; + setImages (image, null); +} + +void setImages (Image image, Image [] images) { + /* + * Feature in WinCE. WM_SETICON and WM_GETICON set the icon + * for the window class, not the window instance. This means + * that it is possible to set an icon into a window and then + * later free the icon, thus freeing the icon for every window. + * The fix is to avoid the API. + * + * On WinCE PPC, icons in windows are not displayed. + */ + if (OS.IsWinCE) return; + if (smallImage !is null) smallImage.dispose (); + if (largeImage !is null) largeImage.dispose (); + smallImage = largeImage = null; + int hSmallIcon = 0, hLargeIcon = 0; + Image smallIcon = null, largeIcon = null; + if (image !is null) { + smallIcon = largeIcon = image; + } else { + if (images !is null && images.length > 0) { + int depth = display.getIconDepth (); + ImageData [] datas = null; + if (images.length > 1) { + Image [] bestImages = new Image [images.length]; + System.arraycopy (images, 0, bestImages, 0, images.length); + datas = new ImageData [images.length]; + for (int i=0; i<datas.length; i++) { + datas [i] = images [i].getImageData (); + } + images = bestImages; + sort (images, datas, OS.GetSystemMetrics (OS.SM_CXSMICON), OS.GetSystemMetrics (OS.SM_CYSMICON), depth); + } + smallIcon = images [0]; + if (images.length > 1) { + sort (images, datas, OS.GetSystemMetrics (OS.SM_CXICON), OS.GetSystemMetrics (OS.SM_CYICON), depth); + } + largeIcon = images [0]; + } + } + if (smallIcon !is null) { + switch (smallIcon.type) { + case DWT.BITMAP: + smallImage = Display.createIcon (smallIcon); + hSmallIcon = smallImage.handle; + break; + case DWT.ICON: + hSmallIcon = smallIcon.handle; + break; + } + } else { + /* + * Set the default icon for the shell to IDI_APPLICATION. + * This is not necessary for native applications but later + * versions of Java set the icon in javaw.exe instead of + * leaving the default. + * + * NOTE: The icon is not leaked. It is shared within + * the process by all threads and is released when the + * process exits. + */ + if ((state & FOREIGN_HANDLE) is 0) { + hSmallIcon = OS.LoadIcon (0, OS.IDI_APPLICATION); + } + } + OS.SendMessage (handle, OS.WM_SETICON, OS.ICON_SMALL, hSmallIcon); + if (largeIcon !is null) { + switch (largeIcon.type) { + case DWT.BITMAP: + largeImage = Display.createIcon (largeIcon); + hLargeIcon = largeImage.handle; + break; + case DWT.ICON: + hLargeIcon = largeIcon.handle; + break; + } + } + OS.SendMessage (handle, OS.WM_SETICON, OS.ICON_BIG, hLargeIcon); + + /* + * Bug in Windows. When WM_SETICON is used to remove an + * icon from the window trimmings for a window with the + * extended style bits WS_EX_DLGMODALFRAME, the window + * trimmings do not redraw to hide the previous icon. + * The fix is to force a redraw. + */ + if (!OS.IsWinCE) { + if (hSmallIcon is 0 && hLargeIcon is 0 && (style & DWT.BORDER) !is 0) { + int flags = OS.RDW_FRAME | OS.RDW_INVALIDATE; + OS.RedrawWindow (handle, null, 0, flags); + } + } +} + +/** + * Sets the receiver's images to the argument, which may + * be an empty array. Images are typically displayed by the + * window manager when the instance is marked as iconified, + * and may also be displayed somewhere in the trim when the + * instance is in normal or maximized states. Depending where + * the icon is displayed, the platform chooses the icon with + * the "best" attributes. It is expected that the array will + * contain the same icon rendered at different sizes, with + * different depth and transparency attributes. + * + * @param images the new image array + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of images is null</li> + * <li>ERROR_INVALID_ARGUMENT - if one of the images is null or has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void setImages (Image [] images) { + checkWidget (); + if (images is null) error (DWT.ERROR_INVALID_ARGUMENT); + for (int i = 0; i < images.length; i++) { + if (images [i] is null || images [i].isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + } + this.images = images; + setImages (null, images); +} + +/** + * Sets the maximized state of the receiver. + * If the argument is <code>true</code> causes the receiver + * to switch to the maximized state, and if the argument is + * <code>false</code> and the receiver was previously maximized, + * causes the receiver to switch back to either the minimized + * or normal states. + * <p> + * Note: The result of intermixing calls to <code>setMaximized(true)</code> + * and <code>setMinimized(true)</code> will vary by platform. Typically, + * the behavior will match the platform user's expectations, but not + * always. This should be avoided if possible. + * </p> + * + * @param maximized the new maximized state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setMinimized + */ +public void setMaximized (bool maximized) { + checkWidget (); + Display.lpStartupInfo = null; + _setMaximized (maximized); +} + +/** + * Sets the receiver's menu bar to the argument, which + * may be null. + * + * @param menu the new menu bar + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li> + * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMenuBar (Menu menu) { + checkWidget (); + if (menuBar is menu) return; + if (menu !is null) { + if (menu.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + if ((menu.style & DWT.BAR) is 0) error (DWT.ERROR_MENU_NOT_BAR); + if (menu.parent !is this) error (DWT.ERROR_INVALID_PARENT); + } + if (OS.IsWinCE) { + if (OS.IsHPC) { + bool resize = menuBar !is menu; + if (menuBar !is null) OS.CommandBar_Show (menuBar.hwndCB, false); + menuBar = menu; + if (menuBar !is null) OS.CommandBar_Show (menuBar.hwndCB, true); + if (resize) { + sendEvent (DWT.Resize); + if (isDisposed ()) return; + if (layout !is null) { + markLayout (false, false); + updateLayout (true, false); + } + } + } else { + if (OS.IsPPC) { + /* + * Note in WinCE PPC. The menu bar is a separate popup window. + * If the shell is full screen, resize its window to leave + * space for the menu bar. + */ + bool resize = getMaximized () && menuBar !is menu; + if (menuBar !is null) OS.ShowWindow (menuBar.hwndCB, OS.SW_HIDE); + menuBar = menu; + if (menuBar !is null) OS.ShowWindow (menuBar.hwndCB, OS.SW_SHOW); + if (resize) _setMaximized (true); + } + if (OS.IsSP) { + if (menuBar !is null) OS.ShowWindow (menuBar.hwndCB, OS.SW_HIDE); + menuBar = menu; + if (menuBar !is null) OS.ShowWindow (menuBar.hwndCB, OS.SW_SHOW); + } + } + } else { + if (menu !is null) display.removeBar (menu); + menuBar = menu; + int hMenu = menuBar !is null ? menuBar.handle: 0; + OS.SetMenu (handle, hMenu); + } + destroyAccelerators (); +} + +/** + * Sets the minimized stated of the receiver. + * If the argument is <code>true</code> causes the receiver + * to switch to the minimized state, and if the argument is + * <code>false</code> and the receiver was previously minimized, + * causes the receiver to switch back to either the maximized + * or normal states. + * <p> + * Note: The result of intermixing calls to <code>setMaximized(true)</code> + * and <code>setMinimized(true)</code> will vary by platform. Typically, + * the behavior will match the platform user's expectations, but not + * always. This should be avoided if possible. + * </p> + * + * @param minimized the new maximized state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setMaximized + */ +public void setMinimized (bool minimized) { + checkWidget (); + Display.lpStartupInfo = null; + _setMinimized (minimized); +} + +void setParent () { + /* + * In order for an MDI child window to support + * a menu bar, setParent () is needed to reset + * the parent. Otherwise, the MDI child window + * will appear as a separate shell. This is an + * undocumented and possibly dangerous Windows + * feature. + */ + int hwndParent = parent.handle; + display.lockActiveWindow = true; + OS.SetParent (handle, hwndParent); + if (!OS.IsWindowVisible (hwndParent)) { + OS.ShowWindow (handle, OS.SW_SHOWNA); + } + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bits &= ~OS.WS_CHILD; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits | OS.WS_POPUP); + OS.SetWindowLong (handle, OS.GWL_ID, 0); + int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; + SetWindowPos (handle, OS.HWND_BOTTOM, 0, 0, 0, 0, flags); + display.lockActiveWindow = false; +} + +void setPlacement (int x, int y, int width, int height, int flags) { + WINDOWPLACEMENT lpwndpl = new WINDOWPLACEMENT (); + lpwndpl.length = WINDOWPLACEMENT.sizeof; + OS.GetWindowPlacement (handle, lpwndpl); + lpwndpl.showCmd = OS.SW_SHOWNA; + if (OS.IsIconic (handle)) { + lpwndpl.showCmd = OS.SW_SHOWMINNOACTIVE; + } else { + if (OS.IsZoomed (handle)) { + lpwndpl.showCmd = OS.SW_SHOWMAXIMIZED; + } + } + bool sameOrigin = true; + if ((flags & OS.SWP_NOMOVE) is 0) { + sameOrigin = lpwndpl.left !is x || lpwndpl.top !is y; + lpwndpl.right = x + (lpwndpl.right - lpwndpl.left); + lpwndpl.bottom = y + (lpwndpl.bottom - lpwndpl.top); + lpwndpl.left = x; + lpwndpl.top = y; + } + bool sameExtent = true; + if ((flags & OS.SWP_NOSIZE) is 0) { + sameExtent = lpwndpl.right - lpwndpl.left !is width || lpwndpl.bottom - lpwndpl.top !is height; + lpwndpl.right = lpwndpl.left + width; + lpwndpl.bottom = lpwndpl.top + height; + } + OS.SetWindowPlacement (handle, lpwndpl); + if (OS.IsIconic (handle)) { + if (sameOrigin) { + moved = true; + Point location = getLocation (); + oldX = location.x; + oldY = location.y; + sendEvent (DWT.Move); + if (isDisposed ()) return; + } + if (sameExtent) { + resized = true; + Rectangle rect = getClientArea (); + oldWidth = rect.width; + oldHeight = rect.height; + sendEvent (DWT.Resize); + if (isDisposed ()) return; + if (layout !is null) { + markLayout (false, false); + updateLayout (true, false); + } + } + } +} + +void setSavedFocus (Control control) { + savedFocus = control; +} + +void setSystemMenu () { + if (OS.IsWinCE) return; + int hMenu = OS.GetSystemMenu (handle, false); + if (hMenu is 0) return; + int oldCount = OS.GetMenuItemCount (hMenu); + if ((style & DWT.RESIZE) is 0) { + OS.DeleteMenu (hMenu, OS.SC_SIZE, OS.MF_BYCOMMAND); + } + if ((style & DWT.MIN) is 0) { + OS.DeleteMenu (hMenu, OS.SC_MINIMIZE, OS.MF_BYCOMMAND); + } + if ((style & DWT.MAX) is 0) { + OS.DeleteMenu (hMenu, OS.SC_MAXIMIZE, OS.MF_BYCOMMAND); + } + if ((style & (DWT.MIN | DWT.MAX)) is 0) { + OS.DeleteMenu (hMenu, OS.SC_RESTORE, OS.MF_BYCOMMAND); + } + int newCount = OS.GetMenuItemCount (hMenu); + if ((style & DWT.CLOSE) is 0 || newCount !is oldCount) { + OS.DeleteMenu (hMenu, OS.SC_TASKLIST, OS.MF_BYCOMMAND); + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_ID; + int index = 0; + while (index < newCount) { + if (OS.GetMenuItemInfo (hMenu, index, true, info)) { + if (info.wID is OS.SC_CLOSE) break; + } + index++; + } + if (index !is newCount) { + OS.DeleteMenu (hMenu, index - 1, OS.MF_BYPOSITION); + if ((style & DWT.CLOSE) is 0) { + OS.DeleteMenu (hMenu, OS.SC_CLOSE, OS.MF_BYCOMMAND); + } + } + } +} + +/** + * Sets the receiver's text, which is the string that the + * window manager will typically display as the receiver's + * <em>title</em>, to the argument, which must not be null. + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, string, true); + OS.SetWindowText (handle, buffer); +} + +public void setVisible (bool visible) { + checkWidget (); + if (drawCount !is 0) { + if (((state & HIDDEN) is 0) is visible) return; + } else { + if (visible is OS.IsWindowVisible (handle)) return; + } + if (visible) { + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the show + * event. If this happens, just return. + */ + sendEvent (DWT.Show); + if (isDisposed ()) return; + if (OS.IsHPC) { + if (menuBar !is null) { + int hwndCB = menuBar.hwndCB; + OS.CommandBar_DrawMenuBar (hwndCB, 0); + } + } + if (drawCount !is 0) { + state &= ~HIDDEN; + } else { + if (OS.IsWinCE) { + OS.ShowWindow (handle, OS.SW_SHOW); + } else { + if (menuBar !is null) { + display.removeBar (menuBar); + OS.DrawMenuBar (handle); + } + STARTUPINFO lpStartUpInfo = Display.lpStartupInfo; + if (lpStartUpInfo !is null && (lpStartUpInfo.dwFlags & OS.STARTF_USESHOWWINDOW) !is 0) { + OS.ShowWindow (handle, lpStartUpInfo.wShowWindow); + } else { + OS.ShowWindow (handle, swFlags); + } + } + if (isDisposed ()) return; + opened = true; + if (!moved) { + moved = true; + Point location = getLocation (); + oldX = location.x; + oldY = location.y; + } + if (!resized) { + resized = true; + Rectangle rect = getClientArea (); + oldWidth = rect.width; + oldHeight = rect.height; + } + OS.UpdateWindow (handle); + } + } else { + if (!OS.IsWinCE) { + if (OS.IsIconic (handle)) { + swFlags = OS.SW_SHOWMINNOACTIVE; + } else { + if (OS.IsZoomed (handle)) { + swFlags = OS.SW_SHOWMAXIMIZED; + } else { + if (handle is OS.GetActiveWindow ()) { + swFlags = OS.SW_RESTORE; + } else { + swFlags = OS.SW_SHOWNOACTIVATE; + } + } + } + } + if (drawCount !is 0) { + state |= HIDDEN; + } else { + OS.ShowWindow (handle, OS.SW_HIDE); + } + if (isDisposed ()) return; + sendEvent (DWT.Hide); + } +} + +void sort (Image [] images, ImageData [] datas, int width, int height, int depth) { + /* Shell Sort from K&R, pg 108 */ + int length = images.length; + if (length <= 1) return; + for (int gap=length/2; gap>0; gap/=2) { + for (int i=gap; i<length; i++) { + for (int j=i-gap; j>=0; j-=gap) { + if (compare (datas [j], datas [j + gap], width, height, depth) >= 0) { + Image swap = images [j]; + images [j] = images [j + gap]; + images [j + gap] = swap; + ImageData swapData = datas [j]; + datas [j] = datas [j + gap]; + datas [j + gap] = swapData; + } + } + } + } +} + +bool translateAccelerator (MSG msg) { + if (!isEnabled () || !isActive ()) return false; + if (menuBar !is null && !menuBar.isEnabled ()) return false; + if (translateMDIAccelerator (msg) || translateMenuAccelerator (msg)) return true; + Decorations decorations = parent.menuShell (); + return decorations.translateAccelerator (msg); +} + +bool translateMenuAccelerator (MSG msg) { + if (hAccel is -1) createAccelerators (); + return hAccel !is 0 && OS.TranslateAccelerator (handle, hAccel, msg) !is 0; +} + +bool translateMDIAccelerator (MSG msg) { + if (!(this instanceof Shell)) { + Shell shell = getShell (); + int hwndMDIClient = shell.hwndMDIClient; + if (hwndMDIClient !is 0 && OS.TranslateMDISysAccel (hwndMDIClient, msg)) { + return true; + } + if (msg.message is OS.WM_KEYDOWN) { + if (OS.GetKeyState (OS.VK_CONTROL) >= 0) return false; + switch (msg.wParam) { + case OS.VK_F4: + OS.PostMessage (handle, OS.WM_CLOSE, 0, 0); + return true; + case OS.VK_F6: + if (traverseDecorations (true)) return true; + } + return false; + } + if (msg.message is OS.WM_SYSKEYDOWN) { + switch (msg.wParam) { + case OS.VK_F4: + OS.PostMessage (shell.handle, OS.WM_CLOSE, 0, 0); + return true; + } + return false; + } + } + return false; +} + +bool traverseDecorations (bool next) { + Control [] children = parent._getChildren (); + int length = children.length; + int index = 0; + while (index < length) { + if (children [index] is this) break; + index++; + } + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in focus in + * or out events. Ensure that a disposed widget is + * not accessed. + */ + int start = index, offset = (next) ? 1 : -1; + while ((index = (index + offset + length) % length) !is start) { + Control child = children [index]; + if (!child.isDisposed () && child instanceof Decorations) { + if (child.setFocus ()) return true; + } + } + return false; +} + +bool traverseItem (bool next) { + return false; +} + +bool traverseReturn () { + if (defaultButton is null || defaultButton.isDisposed ()) return false; + if (!defaultButton.isVisible () || !defaultButton.isEnabled ()) return false; + defaultButton.click (); + return true; +} + +CREATESTRUCT widgetCreateStruct () { + return new CREATESTRUCT (); +} + +int widgetExtStyle () { + int bits = super.widgetExtStyle () | OS.WS_EX_MDICHILD; + bits &= ~OS.WS_EX_CLIENTEDGE; + if ((style & DWT.NO_TRIM) !is 0) return bits; + if (OS.IsPPC) { + if ((style & DWT.CLOSE) !is 0) bits |= OS.WS_EX_CAPTIONOKBTN; + } + if ((style & DWT.RESIZE) !is 0) return bits; + if ((style & DWT.BORDER) !is 0) bits |= OS.WS_EX_DLGMODALFRAME; + return bits; +} + +int widgetParent () { + Shell shell = getShell (); + return shell.hwndMDIClient (); +} + +int widgetStyle () { + /* + * Clear WS_VISIBLE and WS_TABSTOP. NOTE: In Windows, WS_TABSTOP + * has the same value as WS_MAXIMIZEBOX so these bits cannot be + * used to control tabbing. + */ + int bits = super.widgetStyle () & ~(OS.WS_TABSTOP | OS.WS_VISIBLE); + + /* Set the title bits and no-trim bits */ + bits &= ~OS.WS_BORDER; + if ((style & DWT.NO_TRIM) !is 0) return bits; + if ((style & DWT.TITLE) !is 0) bits |= OS.WS_CAPTION; + + /* Set the min and max button bits */ + if ((style & DWT.MIN) !is 0) bits |= OS.WS_MINIMIZEBOX; + if ((style & DWT.MAX) !is 0) bits |= OS.WS_MAXIMIZEBOX; + + /* Set the resize, dialog border or border bits */ + if ((style & DWT.RESIZE) !is 0) { + /* + * Note on WinCE PPC. DWT.RESIZE is used to resize + * the Shell according to the state of the IME. + * It does not set the WS_THICKFRAME style. + */ + if (!OS.IsPPC) bits |= OS.WS_THICKFRAME; + } else { + if ((style & DWT.BORDER) is 0) bits |= OS.WS_BORDER; + } + + /* Set the system menu and close box bits */ + if (!OS.IsPPC && !OS.IsSP) { + if ((style & DWT.CLOSE) !is 0) bits |= OS.WS_SYSMENU; + } + + return bits; +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + switch (msg) { + case Display.SWT_GETACCEL: + case Display.SWT_GETACCELCOUNT: + if (hAccel is -1) createAccelerators (); + return msg is Display.SWT_GETACCELCOUNT ? nAccel : hAccel; + } + return super.windowProc (hwnd, msg, wParam, lParam); +} + +LRESULT WM_ACTIVATE (int wParam, int lParam) { + LRESULT result = super.WM_ACTIVATE (wParam, lParam); + if (result !is null) return result; + /* + * Feature in AWT. When an AWT Window is activated, + * for some reason, it seems to forward the WM_ACTIVATE + * message to the parent. Normally, the parent is an + * AWT Frame. When AWT is embedded in DWT, the DWT + * shell gets the WM_ACTIVATE and assumes that it came + * from Windows. When an DWT shell is activated it + * restores focus to the last control that had focus. + * If this control is an embedded composite, it takes + * focus from the AWT Window. The fix is to ignore + * WM_ACTIVATE messages that come from AWT Windows. + */ + if (OS.GetParent (lParam) is handle) { + TCHAR buffer = new TCHAR (0, 128); + OS.GetClassName (lParam, buffer, buffer.length ()); + String className = buffer.toString (0, buffer.strlen ()); + if (className.equals (Display.AWT_WINDOW_CLASS)) { + return LRESULT.ZERO; + } + } + if ((wParam & 0xFFFF) !is 0) { + /* + * When the high word of wParam is non-zero, the activation + * state of the window is being changed while the window is + * minimized. If this is the case, do not report activation + * events or restore the focus. + */ + if ((wParam >> 16) !is 0) return result; + Control control = display.findControl (lParam); + if (control is null || control instanceof Shell) { + if (this instanceof Shell) { + sendEvent (DWT.Activate); + if (isDisposed ()) return LRESULT.ZERO; + } + } + if (restoreFocus ()) return LRESULT.ZERO; + } else { + Display display = this.display; + bool lockWindow = display.isXMouseActive (); + if (lockWindow) display.lockActiveWindow = true; + Control control = display.findControl (lParam); + if (control is null || control instanceof Shell) { + if (this instanceof Shell) { + sendEvent (DWT.Deactivate); + if (!isDisposed ()) { + Shell shell = getShell (); + shell.setActiveControl (null); + // widget could be disposed at this point + } + } + } + if (lockWindow) display.lockActiveWindow = false; + if (isDisposed ()) return LRESULT.ZERO; + saveFocus (); + } + return result; +} + +LRESULT WM_CLOSE (int wParam, int lParam) { + LRESULT result = super.WM_CLOSE (wParam, lParam); + if (result !is null) return result; + if (isEnabled () && isActive ()) closeWidget (); + return LRESULT.ZERO; +} + +LRESULT WM_HOTKEY (int wParam, int lParam) { + LRESULT result = super.WM_HOTKEY (wParam, lParam); + if (result !is null) return result; + if (OS.IsSP) { + /* + * Feature on WinCE SP. The Back key is either used to close + * the foreground Dialog or used as a regular Back key in an EDIT + * control. The article 'Back Key' in MSDN for Smartphone + * describes how an application should handle it. The + * workaround is to override the Back key when creating + * the menubar and handle it based on the style of the Shell. + * If the Shell has the DWT.CLOSE style, close the Shell. + * Otherwise, send the Back key to the window with focus. + */ + if (((lParam >> 16) & 0xFFFF) is OS.VK_ESCAPE) { + if ((style & DWT.CLOSE) !is 0) { + OS.PostMessage (handle, OS.WM_CLOSE, 0, 0); + } else { + OS.SHSendBackToFocusWindow (OS.WM_HOTKEY, wParam, lParam); + } + return LRESULT.ZERO; + } + } + return result; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_KILLFOCUS (wParam, lParam); + saveFocus (); + return result; +} + +LRESULT WM_MOVE (int wParam, int lParam) { + if (moved) { + Point location = getLocation (); + if (location.x is oldX && location.y is oldY) { + return null; + } + oldX = location.x; + oldY = location.y; + } + return super.WM_MOVE (wParam, lParam); +} + +LRESULT WM_NCACTIVATE (int wParam, int lParam) { + LRESULT result = super.WM_NCACTIVATE (wParam, lParam); + if (result !is null) return result; + if (wParam is 0) { + if (display.lockActiveWindow) return LRESULT.ZERO; + Control control = display.findControl (lParam); + if (control !is null) { + Shell shell = getShell (); + Decorations decorations = control.menuShell (); + if (decorations.getShell () is shell) { + if (this instanceof Shell) return LRESULT.ONE; + if (display.ignoreRestoreFocus) { + if (display.lastHittest !is OS.HTCLIENT) { + result = LRESULT.ONE; + } + } + } + } + } + if (!(this instanceof Shell)) { + int hwndShell = getShell().handle; + OS.SendMessage (hwndShell, OS.WM_NCACTIVATE, wParam, lParam); + } + return result; +} + +LRESULT WM_QUERYOPEN (int wParam, int lParam) { + LRESULT result = super.WM_QUERYOPEN (wParam, lParam); + if (result !is null) return result; + sendEvent (DWT.Deiconify); + // widget could be disposed at this point + return result; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_SETFOCUS (wParam, lParam); + if (savedFocus !is this) restoreFocus (); + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = null; + bool changed = true; + if (resized) { + int newWidth = 0, newHeight = 0; + switch (wParam) { + case OS.SIZE_RESTORED: + case OS.SIZE_MAXIMIZED: + newWidth = lParam & 0xFFFF; + newHeight = lParam >> 16; + break; + case OS.SIZE_MINIMIZED: + Rectangle rect = getClientArea (); + newWidth = rect.width; + newHeight = rect.height; + break; + } + changed = newWidth !is oldWidth || newHeight !is oldHeight; + if (changed) { + oldWidth = newWidth; + oldHeight = newHeight; + } + } + if (changed) { + result = super.WM_SIZE (wParam, lParam); + if (isDisposed ()) return result; + } + if (wParam is OS.SIZE_MINIMIZED) { + sendEvent (DWT.Iconify); + // widget could be disposed at this point + } + return result; +} + +LRESULT WM_SYSCOMMAND (int wParam, int lParam) { + LRESULT result = super.WM_SYSCOMMAND (wParam, lParam); + if (result !is null) return result; + if (!(this instanceof Shell)) { + int cmd = wParam & 0xFFF0; + switch (cmd) { + case OS.SC_CLOSE: { + OS.PostMessage (handle, OS.WM_CLOSE, 0, 0); + return LRESULT.ZERO; + } + case OS.SC_NEXTWINDOW: { + traverseDecorations (true); + return LRESULT.ZERO; + } + } + } + return result; +} + +LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) { + LRESULT result = super.WM_WINDOWPOSCHANGING (wParam, lParam); + if (result !is null) return result; + if (display.lockActiveWindow) { + WINDOWPOS lpwp = new WINDOWPOS (); + OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof); + lpwp.flags |= OS.SWP_NOZORDER; + OS.MoveMemory (lParam, lpwp, WINDOWPOS.sizeof); + } + return result; +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Dialog.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,255 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Dialog; + + +import dwt.DWT; +import dwt.DWTException; +import dwt.widgets.Shell; +import dwt.widgets.Display; + +/** + * This class is the abstract superclass of the classes + * that represent the built in platform dialogs. + * A <code>Dialog</code> typically contains other widgets + * that are not accessible. A <code>Dialog</code> is not + * a <code>Widget</code>. + * <p> + * This class can also be used as the abstract superclass + * for user-designed dialogs. Such dialogs usually consist + * of a Shell with child widgets. The basic template for a + * user-defined dialog typically looks something like this: + * <pre><code> + * public class MyDialog extends Dialog { + * Object result; + * + * public MyDialog (Shell parent, int style) { + * super (parent, style); + * } + * public MyDialog (Shell parent) { + * this (parent, 0); // your default style bits go here (not the Shell's style bits) + * } + * public Object open () { + * Shell parent = getParent(); + * Shell shell = new Shell(parent, DWT.DIALOG_TRIM | DWT.APPLICATION_MODAL); + * shell.setText(getText()); + * // Your code goes here (widget creation, set result, etc). + * shell.open(); + * Display display = parent.getDisplay(); + * while (!shell.isDisposed()) { + * if (!display.readAndDispatch()) display.sleep(); + * } + * return result; + * } + * } + * </pre></code> + * <p> + * Note: The <em>modality</em> styles supported by this class + * are treated as <em>HINT</em>s, because not all are supported + * by every subclass on every platform. If a modality style is + * not supported, it is "upgraded" to a more restrictive modality + * style that is supported. For example, if <code>PRIMARY_MODAL</code> + * is not supported by a particular dialog, it would be upgraded to + * <code>APPLICATION_MODAL</code>. In addition, as is the case + * for shells, the window manager for the desktop on which the + * instance is visible has ultimate control over the appearance + * and behavior of the instance, including its modality. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>APPLICATION_MODAL, PRIMARY_MODAL, SYSTEM_MODAL</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of the styles APPLICATION_MODAL, PRIMARY_MODAL, + * and SYSTEM_MODAL may be specified. + * </p> + * + * @see Shell + */ + +public abstract class Dialog { + int style; + Shell parent; + char[] title; + +/** + * Constructs a new instance of this class given only its + * parent. + * + * @param parent a shell which will be the parent of the new instance + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + */ +public this (Shell parent) { + this (parent, DWT.PRIMARY_MODAL); +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * + * @param parent a shell which will be the parent of the new instance + * @param style the style of dialog to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + * + * @see DWT#PRIMARY_MODAL + * @see DWT#APPLICATION_MODAL + * @see DWT#SYSTEM_MODAL + */ +public this (Shell parent, int style) { + checkParent (parent); + this.parent = parent; + this.style = style; + title = ""; +} + +/** + * Checks that this class can be subclassed. + * <p> + * IMPORTANT: See the comment in <code>Widget.checkSubclass()</code>. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see Widget#checkSubclass + */ +protected void checkSubclass () { + //PORTING_TODO: implement Display.isValidClass and Class? + /+if (!Display.isValidClass (getClass ())) { + error (DWT.ERROR_INVALID_SUBCLASS); + }+/ +} + +/** + * Throws an exception if the specified widget can not be + * used as a parent for the receiver. + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + */ +void checkParent (Shell parent) { + if (parent is null) error (DWT.ERROR_NULL_ARGUMENT); + parent.checkWidget (); +} + +/** + * Does whatever dialog specific cleanup is required, and then + * uses the code in <code>DWTError.error</code> to handle the error. + * + * @param code the descriptive error code + * + * @see DWT#error(int) + */ +void error (int code) { + DWT.error(code); +} + +/** + * Returns the receiver's parent, which must be a <code>Shell</code> + * or null. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Shell getParent () { + return parent; +} + +/** + * Returns the receiver's style information. + * <p> + * Note that, the value which is returned by this method <em>may + * not match</em> the value which was provided to the constructor + * when the receiver was created. + * </p> + * + * @return the style bits + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getStyle () { + return style; +} + +/** + * Returns the receiver's text, which is the string that the + * window manager will typically display as the receiver's + * <em>title</em>. If the text has not previously been set, + * returns an empty string. + * + * @return the text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public char[] getText () { + return title; +} + +/** + * Sets the receiver's text, which is the string that the + * window manager will typically display as the receiver's + * <em>title</em>, to the argument, which must not be null. + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (char[] string) { + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + title = string; +} + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/DirectoryDialog.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,320 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.DirectoryDialog; + +import dwt.widgets.Dialog; +import dwt.widgets.Shell; + +class DirectoryDialog : Dialog { + public this (Shell parent, int style) { + super (parent, style); + } +} + +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.internal.Callback; +import dwt.internal.win32.BROWSEINFO; +import dwt.internal.win32.OS; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class allow the user to navigate + * the file system and select a directory. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ + +public class DirectoryDialog extends Dialog { + String message = "", filterPath = ""; //$NON-NLS-1$//$NON-NLS-2$ + String directoryPath; + +/** + * Constructs a new instance of this class given only its parent. + * + * @param parent a shell which will be the parent of the new instance + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public DirectoryDialog (Shell parent) { + this (parent, DWT.PRIMARY_MODAL); +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a shell which will be the parent of the new instance + * @param style the style of dialog to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public DirectoryDialog (Shell parent, int style) { + super (parent, style); + checkSubclass (); +} + +int BrowseCallbackProc (int hwnd, int uMsg, int lParam, int lpData) { + switch (uMsg) { + case OS.BFFM_INITIALIZED: + if (filterPath !is null && filterPath.length () !is 0) { + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, filterPath.replace ('/', '\\'), true); + OS.SendMessage (hwnd, OS.BFFM_SETSELECTION, 1, buffer); + } + if (title !is null && title.length () !is 0) { + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, title, true); + OS.SetWindowText (hwnd, buffer); + } + break; + case OS.BFFM_VALIDATEFAILEDA: + case OS.BFFM_VALIDATEFAILEDW: + /* Use the character encoding for the default locale */ + int length = OS.IsUnicode ? OS.wcslen (lParam) : OS.strlen (lParam); + TCHAR buffer = new TCHAR (0, length); + int byteCount = buffer.length () * TCHAR.sizeof; + OS.MoveMemory (buffer, lParam, byteCount); + directoryPath = buffer.toString (0, length); + break; + } + return 0; +} + +/** + * Returns the path which the dialog will use to filter + * the directories it shows. + * + * @return the filter path + * + * @see #setFilterPath + */ +public String getFilterPath () { + return filterPath; +} + +/** + * Returns the dialog's message, which is a description of + * the purpose for which it was opened. This message will be + * visible on the dialog while it is open. + * + * @return the message + */ +public String getMessage () { + return message; +} + +/** + * Makes the dialog visible and brings it to the front + * of the display. + * + * @return a string describing the absolute path of the selected directory, + * or null if the dialog was cancelled or an error occurred + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li> + * </ul> + */ +public String open () { + if (OS.IsWinCE) DWT.error (DWT.ERROR_NOT_IMPLEMENTED); + + int hHeap = OS.GetProcessHeap (); + + /* Get the owner HWND for the dialog */ + int hwndOwner = 0; + if (parent !is null) hwndOwner = parent.handle; + + /* Copy the message to OS memory */ + int lpszTitle = 0; + if (message.length () !is 0) { + String string = message; + if (string.indexOf ('&') !is -1) { + int length = string.length (); + char [] buffer = new char [length * 2]; + int index = 0; + for (int i=0; i<length; i++) { + char ch = string.charAt (i); + if (ch is '&') buffer [index++] = '&'; + buffer [index++] = ch; + } + string = new String (buffer, 0, index); + } + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, string, true); + int byteCount = buffer.length () * TCHAR.sizeof; + lpszTitle = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpszTitle, buffer, byteCount); + } + + /* Create the BrowseCallbackProc */ + Callback callback = new Callback (this, "BrowseCallbackProc", 4); //$NON-NLS-1$ + int lpfn = callback.getAddress (); + if (lpfn is 0) DWT.error (DWT.ERROR_NO_MORE_CALLBACKS); + + /* Make the parent shell be temporary modal */ + Shell oldModal = null; + Display display = parent.getDisplay (); + if ((style & (DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + oldModal = display.getModalDialogShell (); + display.setModalDialogShell (parent); + } + + directoryPath = null; + BROWSEINFO lpbi = new BROWSEINFO (); + lpbi.hwndOwner = hwndOwner; + lpbi.lpszTitle = lpszTitle; + lpbi.ulFlags = OS.BIF_NEWDIALOGSTYLE | OS.BIF_RETURNONLYFSDIRS | OS.BIF_EDITBOX | OS.BIF_VALIDATE; + lpbi.lpfn = lpfn; + /* + * Bug in Windows. On some hardware configurations, SHBrowseForFolder() + * causes warning dialogs with the message "There is no disk in the drive + * Please insert a disk into \Device\Harddisk0\DR0". This is possibly + * caused by SHBrowseForFolder() calling internally GetVolumeInformation(). + * MSDN for GetVolumeInformation() says: + * + * "If you are attempting to obtain information about a floppy drive + * that does not have a floppy disk or a CD-ROM drive that does not + * have a compact disc, the system displays a message box asking the + * user to insert a floppy disk or a compact disc, respectively. + * To prevent the system from displaying this message box, call the + * SetErrorMode function with SEM_FAILCRITICALERRORS." + * + * The fix is to save and restore the error mode using SetErrorMode() + * with the SEM_FAILCRITICALERRORS flag around SHBrowseForFolder(). + */ + int oldErrorMode = OS.SetErrorMode (OS.SEM_FAILCRITICALERRORS); + + /* + * Bug in Windows. When a WH_MSGFILTER hook is used to run code + * during the message loop for SHBrowseForFolder(), running code + * in the hook can cause a GP. Specifically, SetWindowText() + * for static controls seemed to make the problem happen. + * The fix is to disable async messages while the directory + * dialog is open. + * + * NOTE: This only happens in versions of the comctl32.dll + * earlier than 6.0. + */ + bool oldRunMessages = display.runMessages; + if (OS.COMCTL32_MAJOR < 6) display.runMessages = false; + int lpItemIdList = OS.SHBrowseForFolder (lpbi); + if (OS.COMCTL32_MAJOR < 6) display.runMessages = oldRunMessages; + OS.SetErrorMode (oldErrorMode); + + /* Clear the temporary dialog modal parent */ + if ((style & (DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + display.setModalDialogShell (oldModal); + } + + bool success = lpItemIdList !is 0; + if (success) { + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, OS.MAX_PATH); + if (OS.SHGetPathFromIDList (lpItemIdList, buffer)) { + directoryPath = buffer.toString (0, buffer.strlen ()); + filterPath = directoryPath; + } + } + + /* Free the BrowseCallbackProc */ + callback.dispose (); + + /* Free the OS memory */ + if (lpszTitle !is 0) OS.HeapFree (hHeap, 0, lpszTitle); + + /* Free the pointer to the ITEMIDLIST */ + int [] ppMalloc = new int [1]; + if (OS.SHGetMalloc (ppMalloc) is OS.S_OK) { + /* void Free (struct IMalloc *this, void *pv); */ + OS.VtblCall (5, ppMalloc [0], lpItemIdList); + } + + /* + * This code is intentionally commented. On some + * platforms, the owner window is repainted right + * away when a dialog window exits. This behavior + * is currently unspecified. + */ +// if (hwndOwner !is 0) OS.UpdateWindow (hwndOwner); + + /* Return the directory path */ + if (!success) return null; + return directoryPath; +} + +/** + * Sets the path that the dialog will use to filter + * the directories it shows to the argument, which may + * be null. If the string is null, then the operating + * system's default filter path will be used. + * <p> + * Note that the path string is platform dependent. + * For convenience, either '/' or '\' can be used + * as a path separator. + * </p> + * + * @param string the filter path + */ +public void setFilterPath (String string) { + filterPath = string; +} + +/** + * Sets the dialog's message, which is a description of + * the purpose for which it was opened. This message will be + * visible on the dialog while it is open. + * + * @param string the message + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + */ +public void setMessage (String string) { + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + message = string; +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Display.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,4465 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Display; + +import dwt.graphics.Device; +import dwt.widgets.Tray; + +class Display : Device { + Tray tray; + void wakeThread(); + public void wake () ; + public bool isValidThread() ; + static Display getDefault(); + static Display getCurrent(); +} +/++ +import dwt.DWT; +import dwt.DWTError; +import dwt.DWTException; +import dwt.graphics.Color; +import dwt.graphics.Cursor; +import dwt.graphics.Device; +import dwt.graphics.DeviceData; +import dwt.graphics.Font; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Image; +import dwt.graphics.ImageData; +import dwt.graphics.PaletteData; +import dwt.graphics.Point; +import dwt.graphics.RGB; +import dwt.graphics.Rectangle; +import dwt.graphics.Resource; +import dwt.internal.Callback; +import dwt.internal.ImageList; +import dwt.internal.win32.BITMAP; +import dwt.internal.win32.BITMAPINFOHEADER; +import dwt.internal.win32.HIGHCONTRAST; +import dwt.internal.win32.ICONINFO; +import dwt.internal.win32.INPUT; +import dwt.internal.win32.KEYBDINPUT; +import dwt.internal.win32.LOGFONT; +import dwt.internal.win32.LOGFONTA; +import dwt.internal.win32.LOGFONTW; +import dwt.internal.win32.MONITORINFO; +import dwt.internal.win32.MOUSEINPUT; +import dwt.internal.win32.MSG; +import dwt.internal.win32.NONCLIENTMETRICS; +import dwt.internal.win32.NONCLIENTMETRICSA; +import dwt.internal.win32.NONCLIENTMETRICSW; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.STARTUPINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class are responsible for managing the + * connection between DWT and the underlying operating + * system. Their most important function is to implement + * the DWT event loop in terms of the platform event model. + * They also provide various methods for accessing information + * about the operating system, and have overall control over + * the operating system resources which DWT allocates. + * <p> + * Applications which are built with DWT will <em>almost always</em> + * require only a single display. In particular, some platforms + * which DWT supports will not allow more than one <em>active</em> + * display. In other words, some platforms do not support + * creating a new display if one already exists that has not been + * sent the <code>dispose()</code> message. + * <p> + * In DWT, the thread which creates a <code>Display</code> + * instance is distinguished as the <em>user-interface thread</em> + * for that display. + * </p> + * The user-interface thread for a particular display has the + * following special attributes: + * <ul> + * <li> + * The event loop for that display must be run from the thread. + * </li> + * <li> + * Some DWT API methods (notably, most of the public methods in + * <code>Widget</code> and its subclasses), may only be called + * from the thread. (To support multi-threaded user-interface + * applications, class <code>Display</code> provides inter-thread + * communication methods which allow threads other than the + * user-interface thread to request that it perform operations + * on their behalf.) + * </li> + * <li> + * The thread is not allowed to construct other + * <code>Display</code>s until that display has been disposed. + * (Note that, this is in addition to the restriction mentioned + * above concerning platform support for multiple displays. Thus, + * the only way to have multiple simultaneously active displays, + * even on platforms which support it, is to have multiple threads.) + * </li> + * </ul> + * Enforcing these attributes allows DWT to be implemented directly + * on the underlying operating system's event model. This has + * numerous benefits including smaller footprint, better use of + * resources, safer memory management, clearer program logic, + * better performance, and fewer overall operating system threads + * required. The down side however, is that care must be taken + * (only) when constructing multi-threaded applications to use the + * inter-thread communication mechanisms which this class provides + * when required. + * </p><p> + * All DWT API methods which may only be called from the user-interface + * thread are distinguished in their documentation by indicating that + * they throw the "<code>ERROR_THREAD_INVALID_ACCESS</code>" + * DWT exception. + * </p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>Close, Dispose, Settings</dd> + * </dl> + * <p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * @see #syncExec + * @see #asyncExec + * @see #wake + * @see #readAndDispatch + * @see #sleep + * @see Device#dispose + */ + +public class Display extends Device { + + /** + * the handle to the OS message queue + * (Warning: This field is platform dependent) + * <p> + * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It is not available on all + * platforms and should never be accessed from application code. + * </p> + */ + public MSG msg = new MSG (); + + /* Windows and Events */ + Event [] eventQueue; + Callback windowCallback; + int windowProc, threadId; + TCHAR windowClass, windowShadowClass; + static int WindowClassCount; + static final String WindowName = "SWT_Window"; //$NON-NLS-1$ + static final String WindowShadowName = "SWT_WindowShadow"; //$NON-NLS-1$ + EventTable eventTable, filterTable; + + /* Widget Table */ + int [] indexTable; + Control lastControl, lastGetControl; + int freeSlot, lastHwnd, lastGetHwnd; + Control [] controlTable; + static final int GROW_SIZE = 1024; + static final int SWT_OBJECT_INDEX; + static final bool USE_PROPERTY = !OS.IsWinCE; + static { + if (USE_PROPERTY) { + SWT_OBJECT_INDEX = OS.GlobalAddAtom (new TCHAR (0, "SWT_OBJECT_INDEX", true)); //$NON-NLS-1$ + } else { + SWT_OBJECT_INDEX = 0; + } + } + + /* Startup info */ + static STARTUPINFO lpStartupInfo; + static { + if (!OS.IsWinCE) { + lpStartupInfo = new STARTUPINFO (); + lpStartupInfo.cb = STARTUPINFO.sizeof; + OS.GetStartupInfo (lpStartupInfo); + } + } + + /* XP Themes */ + int hButtonTheme, hEditTheme, hExplorerBarTheme, hScrollBarTheme, hTabTheme; + static final char [] BUTTON = new char [] {'B', 'U', 'T', 'T', 'O', 'N', 0}; + static final char [] EDIT = new char [] {'E', 'D', 'I', 'T', 0}; + static final char [] EXPLORER = new char [] {'E', 'X', 'P', 'L', 'O', 'R', 'E', 'R', 0}; + static final char [] EXPLORERBAR = new char [] {'E', 'X', 'P', 'L', 'O', 'R', 'E', 'R', 'B', 'A', 'R', 0}; + static final char [] SCROLLBAR = new char [] {'S', 'C', 'R', 'O', 'L', 'L', 'B', 'A', 'R', 0}; + static final char [] LISTVIEW = new char [] {'L', 'I', 'S', 'T', 'V', 'I', 'E', 'W', 0}; + static final char [] TAB = new char [] {'T', 'A', 'B', 0}; + static final char [] TREEVIEW = new char [] {'T', 'R', 'E', 'E', 'V', 'I', 'E', 'W', 0}; + + /* Focus */ + int focusEvent; + Control focusControl; + + /* Menus */ + Menu [] bars, popups; + MenuItem [] items; + + /* + * The start value for WM_COMMAND id's. + * Windows reserves the values 0..100. + * + * The SmartPhone DWT resource file reserves + * the values 101..107. + */ + static final int ID_START = 108; + + /* Filter Hook */ + Callback msgFilterCallback; + int msgFilterProc, filterHook; + MSG hookMsg = new MSG (); + bool runDragDrop = true; + + /* Idle Hook */ + Callback foregroundIdleCallback; + int foregroundIdleProc, idleHook; + + /* Message Hook and Embedding */ + bool ignoreNextKey; + Callback getMsgCallback, embeddedCallback; + int getMsgProc, msgHook, embeddedHwnd, embeddedProc; + static final String AWT_WINDOW_CLASS = "SunAwtWindow"; + static final short [] ACCENTS = new short [] {'~', '`', '\'', '^', '"'}; + + /* Sync/Async Widget Communication */ + Synchronizer synchronizer = new Synchronizer (this); + bool runMessages = true, runMessagesInIdle = false; + static final String RUN_MESSAGES_IN_IDLE_KEY = "org.eclipse.swt.internal.win32.runMessagesInIdle"; //$NON-NLS-1$ + Thread thread; + + /* Display Shutdown */ + Runnable [] disposeList; + + /* System Tray */ + Tray tray; + int nextTrayId; + + /* Timers */ + int [] timerIds; + Runnable [] timerList; + int nextTimerId = SETTINGS_ID + 1; + static final int SETTINGS_ID = 100; + static final int SETTINGS_DELAY = 2000; + + /* Keyboard and Mouse */ + RECT clickRect; + int clickCount, lastTime, lastButton, lastClickHwnd; + int lastKey, lastAscii, lastMouse; + bool lastVirtual, lastNull, lastDead; + byte [] keyboard = new byte [256]; + bool accelKeyHit, mnemonicKeyHit; + bool lockActiveWindow, captureChanged, xMouse; + + /* Tool Tips */ + int nextToolTipId; + + /* MDI */ + bool ignoreRestoreFocus; + Control lastHittestControl; + int lastHittest; + + /* Message Only Window */ + Callback messageCallback; + int hwndMessage, messageProc; + + /* System Resources */ + LOGFONT lfSystemFont; + Font systemFont; + Image errorImage, infoImage, questionImage, warningIcon; + Cursor [] cursors = new Cursor [DWT.CURSOR_HAND + 1]; + Resource [] resources; + static final int RESOURCE_SIZE = 1 + 4 + DWT.CURSOR_HAND + 1; + + /* ImageList Cache */ + ImageList[] imageList, toolImageList, toolHotImageList, toolDisabledImageList; + + /* Custom Colors for ChooseColor */ + int lpCustColors; + + /* Sort Indicators */ + Image upArrow, downArrow; + + /* Table */ + char [] tableBuffer; + + /* Display Data */ + Object data; + String [] keys; + Object [] values; + + /* Key Mappings */ + static final int [] [] KeyTable = { + + /* Keyboard and Mouse Masks */ + {OS.VK_MENU, DWT.ALT}, + {OS.VK_SHIFT, DWT.SHIFT}, + {OS.VK_CONTROL, DWT.CONTROL}, +// {OS.VK_????, DWT.COMMAND}, + + /* NOT CURRENTLY USED */ +// {OS.VK_LBUTTON, DWT.BUTTON1}, +// {OS.VK_MBUTTON, DWT.BUTTON3}, +// {OS.VK_RBUTTON, DWT.BUTTON2}, + + /* Non-Numeric Keypad Keys */ + {OS.VK_UP, DWT.ARROW_UP}, + {OS.VK_DOWN, DWT.ARROW_DOWN}, + {OS.VK_LEFT, DWT.ARROW_LEFT}, + {OS.VK_RIGHT, DWT.ARROW_RIGHT}, + {OS.VK_PRIOR, DWT.PAGE_UP}, + {OS.VK_NEXT, DWT.PAGE_DOWN}, + {OS.VK_HOME, DWT.HOME}, + {OS.VK_END, DWT.END}, + {OS.VK_INSERT, DWT.INSERT}, + + /* Virtual and Ascii Keys */ + {OS.VK_BACK, DWT.BS}, + {OS.VK_RETURN, DWT.CR}, + {OS.VK_DELETE, DWT.DEL}, + {OS.VK_ESCAPE, DWT.ESC}, + {OS.VK_RETURN, DWT.LF}, + {OS.VK_TAB, DWT.TAB}, + + /* Functions Keys */ + {OS.VK_F1, DWT.F1}, + {OS.VK_F2, DWT.F2}, + {OS.VK_F3, DWT.F3}, + {OS.VK_F4, DWT.F4}, + {OS.VK_F5, DWT.F5}, + {OS.VK_F6, DWT.F6}, + {OS.VK_F7, DWT.F7}, + {OS.VK_F8, DWT.F8}, + {OS.VK_F9, DWT.F9}, + {OS.VK_F10, DWT.F10}, + {OS.VK_F11, DWT.F11}, + {OS.VK_F12, DWT.F12}, + {OS.VK_F13, DWT.F13}, + {OS.VK_F14, DWT.F14}, + {OS.VK_F15, DWT.F15}, + + /* Numeric Keypad Keys */ + {OS.VK_MULTIPLY, DWT.KEYPAD_MULTIPLY}, + {OS.VK_ADD, DWT.KEYPAD_ADD}, + {OS.VK_RETURN, DWT.KEYPAD_CR}, + {OS.VK_SUBTRACT, DWT.KEYPAD_SUBTRACT}, + {OS.VK_DECIMAL, DWT.KEYPAD_DECIMAL}, + {OS.VK_DIVIDE, DWT.KEYPAD_DIVIDE}, + {OS.VK_NUMPAD0, DWT.KEYPAD_0}, + {OS.VK_NUMPAD1, DWT.KEYPAD_1}, + {OS.VK_NUMPAD2, DWT.KEYPAD_2}, + {OS.VK_NUMPAD3, DWT.KEYPAD_3}, + {OS.VK_NUMPAD4, DWT.KEYPAD_4}, + {OS.VK_NUMPAD5, DWT.KEYPAD_5}, + {OS.VK_NUMPAD6, DWT.KEYPAD_6}, + {OS.VK_NUMPAD7, DWT.KEYPAD_7}, + {OS.VK_NUMPAD8, DWT.KEYPAD_8}, + {OS.VK_NUMPAD9, DWT.KEYPAD_9}, +// {OS.VK_????, DWT.KEYPAD_EQUAL}, + + /* Other keys */ + {OS.VK_CAPITAL, DWT.CAPS_LOCK}, + {OS.VK_NUMLOCK, DWT.NUM_LOCK}, + {OS.VK_SCROLL, DWT.SCROLL_LOCK}, + {OS.VK_PAUSE, DWT.PAUSE}, + {OS.VK_CANCEL, DWT.BREAK}, + {OS.VK_SNAPSHOT, DWT.PRINT_SCREEN}, +// {OS.VK_????, DWT.HELP}, + + }; + + /* Multiple Displays */ + static Display Default; + static Display [] Displays = new Display [4]; + + /* Multiple Monitors */ + Monitor[] monitors = null; + int monitorCount = 0; + + /* Modality */ + Shell [] modalShells; + Shell modalDialogShell; + static bool TrimEnabled = false; + + /* Private DWT Window Messages */ + static final int SWT_GETACCELCOUNT = OS.WM_APP; + static final int SWT_GETACCEL = OS.WM_APP + 1; + static final int SWT_KEYMSG = OS.WM_APP + 2; + static final int SWT_DESTROY = OS.WM_APP + 3; + static final int SWT_TRAYICONMSG = OS.WM_APP + 4; + static final int SWT_NULL = OS.WM_APP + 5; + static final int SWT_RUNASYNC = OS.WM_APP + 6; + static int SWT_TASKBARCREATED; + static int SWT_RESTORECARET; + + /* Workaround for Adobe Reader 7.0 */ + int hitCount; + + /* Package Name */ + static final String PACKAGE_PREFIX = "org.eclipse.swt.widgets."; //$NON-NLS-1$ + /* + * This code is intentionally commented. In order + * to support CLDC, .class cannot be used because + * it does not compile on some Java compilers when + * they are targeted for CLDC. + */ +// static { +// String name = Display.class.getName (); +// int index = name.lastIndexOf ('.'); +// PACKAGE_PREFIX = name.substring (0, index + 1); +// } + + /* + * TEMPORARY CODE. Install the runnable that + * gets the current display. This code will + * be removed in the future. + */ + static { + DeviceFinder = new Runnable () { + public void run () { + Device device = getCurrent (); + if (device is null) { + device = getDefault (); + } + setDevice (device); + } + }; + } + +/* +* TEMPORARY CODE. +*/ +static void setDevice (Device device) { + CurrentDevice = device; +} + +/** + * Constructs a new instance of this class. + * <p> + * Note: The resulting display is marked as the <em>current</em> + * display. If this is the first display which has been + * constructed since the application started, it is also + * marked as the <em>default</em> display. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if called from a thread that already created an existing display</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see #getCurrent + * @see #getDefault + * @see Widget#checkSubclass + * @see Shell + */ +public Display () { + this (null); +} + +/** + * Constructs a new instance of this class using the parameter. + * + * @param data the device data + */ +public Display (DeviceData data) { + super (data); +} + +Control _getFocusControl () { + return findControl (OS.GetFocus ()); +} + +void addBar (Menu menu) { + if (bars is null) bars = new Menu [4]; + int length = bars.length; + for (int i=0; i<length; i++) { + if (bars [i] is menu) return; + } + int index = 0; + while (index < length) { + if (bars [index] is null) break; + index++; + } + if (index is length) { + Menu [] newBars = new Menu [length + 4]; + System.arraycopy (bars, 0, newBars, 0, length); + bars = newBars; + } + bars [index] = menu; +} + +void addControl (int handle, Control control) { + if (handle is 0) return; + if (freeSlot is -1) { + int length = (freeSlot = indexTable.length) + GROW_SIZE; + int [] newIndexTable = new int [length]; + Control [] newControlTable = new Control [length]; + System.arraycopy (indexTable, 0, newIndexTable, 0, freeSlot); + System.arraycopy (controlTable, 0, newControlTable, 0, freeSlot); + for (int i=freeSlot; i<length-1; i++) newIndexTable [i] = i + 1; + newIndexTable [length - 1] = -1; + indexTable = newIndexTable; + controlTable = newControlTable; + } + if (USE_PROPERTY) { + OS.SetProp (handle, SWT_OBJECT_INDEX, freeSlot + 1); + } else { + OS.SetWindowLong (handle, OS.GWL_USERDATA, freeSlot + 1); + } + int oldSlot = freeSlot; + freeSlot = indexTable [oldSlot]; + indexTable [oldSlot] = -2; + controlTable [oldSlot] = control; +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when an event of the given type occurs anywhere + * in a widget. The event type is one of the event constants + * defined in class <code>DWT</code>. When the event does occur, + * the listener is notified by sending it the <code>handleEvent()</code> + * message. + * <p> + * Setting the type of an event to <code>DWT.None</code> from + * within the <code>handleEvent()</code> method can be used to + * change the event type and stop subsequent Java listeners + * from running. Because event filters run before other listeners, + * event filters can both block other listeners and set arbitrary + * fields within an event. For this reason, event filters are both + * powerful and dangerous. They should generally be avoided for + * performance, debugging and code maintenance reasons. + * </p> + * + * @param eventType the type of event to listen for + * @param listener the listener which should be notified when the event occurs + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see Listener + * @see DWT + * @see #removeFilter + * @see #removeListener + * + * @since 3.0 + */ +public void addFilter (int eventType, Listener listener) { + checkDevice (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (filterTable is null) filterTable = new EventTable (); + filterTable.hook (eventType, listener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when an event of the given type occurs. The event + * type is one of the event constants defined in class <code>DWT</code>. + * When the event does occur in the display, the listener is notified by + * sending it the <code>handleEvent()</code> message. + * + * @param eventType the type of event to listen for + * @param listener the listener which should be notified when the event occurs + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see Listener + * @see DWT + * @see #removeListener + * + * @since 2.0 + */ +public void addListener (int eventType, Listener listener) { + checkDevice (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) eventTable = new EventTable (); + eventTable.hook (eventType, listener); +} + +void addMenuItem (MenuItem item) { + if (items is null) items = new MenuItem [64]; + for (int i=0; i<items.length; i++) { + if (items [i] is null) { + item.id = i + ID_START; + items [i] = item; + return; + } + } + item.id = items.length + ID_START; + MenuItem [] newItems = new MenuItem [items.length + 64]; + newItems [items.length] = item; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; +} + +void addPopup (Menu menu) { + if (popups is null) popups = new Menu [4]; + int length = popups.length; + for (int i=0; i<length; i++) { + if (popups [i] is menu) return; + } + int index = 0; + while (index < length) { + if (popups [index] is null) break; + index++; + } + if (index is length) { + Menu [] newPopups = new Menu [length + 4]; + System.arraycopy (popups, 0, newPopups, 0, length); + popups = newPopups; + } + popups [index] = menu; +} + +int asciiKey (int key) { + if (OS.IsWinCE) return 0; + + /* Get the current keyboard. */ + for (int i=0; i<keyboard.length; i++) keyboard [i] = 0; + if (!OS.GetKeyboardState (keyboard)) return 0; + + /* Translate the key to ASCII or UNICODE using the virtual keyboard */ + if (OS.IsUnicode) { + char [] result = new char [1]; + if (OS.ToUnicode (key, key, keyboard, result, 1, 0) is 1) return result [0]; + } else { + short [] result = new short [1]; + if (OS.ToAscii (key, key, keyboard, result, 0) is 1) return result [0]; + } + return 0; +} + +/** + * Causes the <code>run()</code> method of the runnable to + * be invoked by the user-interface thread at the next + * reasonable opportunity. The caller of this method continues + * to run in parallel, and is not notified when the + * runnable has completed. Specifying <code>null</code> as the + * runnable simply wakes the user-interface thread when run. + * <p> + * Note that at the time the runnable is invoked, widgets + * that have the receiver as their display may have been + * disposed. Therefore, it is necessary to check for this + * case inside the runnable before accessing the widget. + * </p> + * + * @param runnable code to run on the user-interface thread or <code>null</code> + * + * @exception DWTException <ul> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #syncExec + */ +public void asyncExec (Runnable runnable) { + if (isDisposed ()) error (DWT.ERROR_DEVICE_DISPOSED); + synchronizer.asyncExec (runnable); +} + +/** + * Causes the system hardware to emit a short sound + * (if it supports this capability). + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void beep () { + checkDevice (); + OS.MessageBeep (OS.MB_OK); +} + +/** + * Checks that this class can be subclassed. + * <p> + * IMPORTANT: See the comment in <code>Widget.checkSubclass()</code>. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see Widget#checkSubclass + */ +protected void checkSubclass () { + if (!isValidClass (getClass ())) error (DWT.ERROR_INVALID_SUBCLASS); +} + +protected void checkDevice () { + if (thread is null) error (DWT.ERROR_WIDGET_DISPOSED); + if (thread !is Thread.currentThread ()) error (DWT.ERROR_THREAD_INVALID_ACCESS); + if (isDisposed ()) error (DWT.ERROR_DEVICE_DISPOSED); +} + +static synchronized void checkDisplay (Thread thread, bool multiple) { + for (int i=0; i<Displays.length; i++) { + if (Displays [i] !is null) { + if (!multiple) DWT.error (DWT.ERROR_NOT_IMPLEMENTED, null, " [multiple displays]"); + if (Displays [i].thread is thread) DWT.error (DWT.ERROR_THREAD_INVALID_ACCESS); + } + } +} + +void clearModal (Shell shell) { + if (modalShells is null) return; + int index = 0, length = modalShells.length; + while (index < length) { + if (modalShells [index] is shell) break; + if (modalShells [index] is null) return; + index++; + } + if (index is length) return; + System.arraycopy (modalShells, index + 1, modalShells, index, --length - index); + modalShells [length] = null; + if (index is 0 && modalShells [0] is null) modalShells = null; + Shell [] shells = getShells (); + for (int i=0; i<shells.length; i++) shells [i].updateModal (); +} + +int controlKey (int key) { + int upper = OS.CharUpper ((short) key); + if (64 <= upper && upper <= 95) return upper & 0xBF; + return key; +} + +/** + * Requests that the connection between DWT and the underlying + * operating system be closed. + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see Device#dispose + * + * @since 2.0 + */ +public void close () { + checkDevice (); + Event event = new Event (); + sendEvent (DWT.Close, event); + if (event.doit) dispose (); +} + +/** + * Creates the device in the operating system. If the device + * does not have a handle, this method may do nothing depending + * on the device. + * <p> + * This method is called before <code>init</code>. + * </p> + * + * @param data the DeviceData which describes the receiver + * + * @see #init + */ +protected void create (DeviceData data) { + checkSubclass (); + checkDisplay (thread = Thread.currentThread (), true); + createDisplay (data); + register (this); + if (Default is null) Default = this; +} + +void createDisplay (DeviceData data) { +} + +static int create32bitDIB (Image image) { + int transparentPixel = -1, alpha = -1, hMask = 0, hBitmap = 0; + byte[] alphaData = null; + switch (image.type) { + case DWT.ICON: + ICONINFO info = new ICONINFO (); + OS.GetIconInfo (image.handle, info); + hBitmap = info.hbmColor; + hMask = info.hbmMask; + break; + case DWT.BITMAP: + ImageData data = image.getImageData (); + hBitmap = image.handle; + alpha = data.alpha; + alphaData = data.alphaData; + transparentPixel = data.transparentPixel; + break; + } + BITMAP bm = new BITMAP (); + OS.GetObject (hBitmap, BITMAP.sizeof, bm); + int imgWidth = bm.bmWidth; + int imgHeight = bm.bmHeight; + int hDC = OS.GetDC (0); + int srcHdc = OS.CreateCompatibleDC (hDC); + int oldSrcBitmap = OS.SelectObject (srcHdc, hBitmap); + int memHdc = OS.CreateCompatibleDC (hDC); + BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER (); + bmiHeader.biSize = BITMAPINFOHEADER.sizeof; + bmiHeader.biWidth = imgWidth; + bmiHeader.biHeight = -imgHeight; + bmiHeader.biPlanes = 1; + bmiHeader.biBitCount = (short)32; + bmiHeader.biCompression = OS.BI_RGB; + byte [] bmi = new byte [BITMAPINFOHEADER.sizeof]; + OS.MoveMemory (bmi, bmiHeader, BITMAPINFOHEADER.sizeof); + int [] pBits = new int [1]; + int memDib = OS.CreateDIBSection (0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); + if (memDib is 0) DWT.error (DWT.ERROR_NO_HANDLES); + int oldMemBitmap = OS.SelectObject (memHdc, memDib); + BITMAP dibBM = new BITMAP (); + OS.GetObject (memDib, BITMAP.sizeof, dibBM); + int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight; + OS.BitBlt (memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY); + byte red = 0, green = 0, blue = 0; + if (transparentPixel !is -1) { + if (bm.bmBitsPixel <= 8) { + byte [] color = new byte [4]; + OS.GetDIBColorTable (srcHdc, transparentPixel, 1, color); + blue = color [0]; + green = color [1]; + red = color [2]; + } else { + switch (bm.bmBitsPixel) { + case 16: + blue = (byte)((transparentPixel & 0x1F) << 3); + green = (byte)((transparentPixel & 0x3E0) >> 2); + red = (byte)((transparentPixel & 0x7C00) >> 7); + break; + case 24: + blue = (byte)((transparentPixel & 0xFF0000) >> 16); + green = (byte)((transparentPixel & 0xFF00) >> 8); + red = (byte)(transparentPixel & 0xFF); + break; + case 32: + blue = (byte)((transparentPixel & 0xFF000000) >>> 24); + green = (byte)((transparentPixel & 0xFF0000) >> 16); + red = (byte)((transparentPixel & 0xFF00) >> 8); + break; + } + } + } + byte [] srcData = new byte [sizeInBytes]; + OS.MoveMemory (srcData, pBits [0], sizeInBytes); + if (hMask !is 0) { + OS.SelectObject(srcHdc, hMask); + for (int y = 0, dp = 0; y < imgHeight; ++y) { + for (int x = 0; x < imgWidth; ++x) { + if (OS.GetPixel(srcHdc, x, y) !is 0) { + srcData [dp + 0] = srcData [dp + 1] = srcData [dp + 2] = srcData[dp + 3] = (byte)0; + } else { + srcData[dp + 3] = (byte)0xFF; + } + dp += 4; + } + } + } else if (alpha !is -1) { + for (int y = 0, dp = 0; y < imgHeight; ++y) { + for (int x = 0; x < imgWidth; ++x) { + srcData [dp + 3] = (byte)alpha; + if (srcData [dp + 3] is 0) srcData [dp + 0] = srcData [dp + 1] = srcData [dp + 2] = 0; + dp += 4; + } + } + } else if (alphaData !is null) { + for (int y = 0, dp = 0, ap = 0; y < imgHeight; ++y) { + for (int x = 0; x < imgWidth; ++x) { + srcData [dp + 3] = alphaData [ap++]; + if (srcData [dp + 3] is 0) srcData [dp + 0] = srcData [dp + 1] = srcData [dp + 2] = 0; + dp += 4; + } + } + } else if (transparentPixel !is -1) { + for (int y = 0, dp = 0; y < imgHeight; ++y) { + for (int x = 0; x < imgWidth; ++x) { + if (srcData [dp] is blue && srcData [dp + 1] is green && srcData [dp + 2] is red) { + srcData [dp + 0] = srcData [dp + 1] = srcData [dp + 2] = srcData [dp + 3] = (byte)0; + } else { + srcData [dp + 3] = (byte)0xFF; + } + dp += 4; + } + } + } else { + for (int y = 0, dp = 0; y < imgHeight; ++y) { + for (int x = 0; x < imgWidth; ++x) { + srcData [dp + 3] = (byte)0xFF; + dp += 4; + } + } + } + OS.MoveMemory (pBits [0], srcData, sizeInBytes); + OS.SelectObject (srcHdc, oldSrcBitmap); + OS.SelectObject (memHdc, oldMemBitmap); + OS.DeleteObject (srcHdc); + OS.DeleteObject (memHdc); + OS.ReleaseDC (0, hDC); + if (hBitmap !is image.handle && hBitmap !is 0) OS.DeleteObject (hBitmap); + if (hMask !is 0) OS.DeleteObject (hMask); + return memDib; +} + +static int create32bitDIB (int hBitmap, int alpha, byte [] alphaData, int transparentPixel) { + BITMAP bm = new BITMAP (); + OS.GetObject (hBitmap, BITMAP.sizeof, bm); + int imgWidth = bm.bmWidth; + int imgHeight = bm.bmHeight; + int hDC = OS.GetDC (0); + int srcHdc = OS.CreateCompatibleDC (hDC); + int oldSrcBitmap = OS.SelectObject (srcHdc, hBitmap); + int memHdc = OS.CreateCompatibleDC (hDC); + BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER (); + bmiHeader.biSize = BITMAPINFOHEADER.sizeof; + bmiHeader.biWidth = imgWidth; + bmiHeader.biHeight = -imgHeight; + bmiHeader.biPlanes = 1; + bmiHeader.biBitCount = (short)32; + bmiHeader.biCompression = OS.BI_RGB; + byte [] bmi = new byte [BITMAPINFOHEADER.sizeof]; + OS.MoveMemory (bmi, bmiHeader, BITMAPINFOHEADER.sizeof); + int [] pBits = new int [1]; + int memDib = OS.CreateDIBSection (0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); + if (memDib is 0) DWT.error (DWT.ERROR_NO_HANDLES); + int oldMemBitmap = OS.SelectObject (memHdc, memDib); + BITMAP dibBM = new BITMAP (); + OS.GetObject (memDib, BITMAP.sizeof, dibBM); + int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight; + OS.BitBlt (memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY); + byte red = 0, green = 0, blue = 0; + if (transparentPixel !is -1) { + if (bm.bmBitsPixel <= 8) { + byte [] color = new byte [4]; + OS.GetDIBColorTable (srcHdc, transparentPixel, 1, color); + blue = color [0]; + green = color [1]; + red = color [2]; + } else { + switch (bm.bmBitsPixel) { + case 16: + blue = (byte)((transparentPixel & 0x1F) << 3); + green = (byte)((transparentPixel & 0x3E0) >> 2); + red = (byte)((transparentPixel & 0x7C00) >> 7); + break; + case 24: + blue = (byte)((transparentPixel & 0xFF0000) >> 16); + green = (byte)((transparentPixel & 0xFF00) >> 8); + red = (byte)(transparentPixel & 0xFF); + break; + case 32: + blue = (byte)((transparentPixel & 0xFF000000) >>> 24); + green = (byte)((transparentPixel & 0xFF0000) >> 16); + red = (byte)((transparentPixel & 0xFF00) >> 8); + break; + } + } + } + OS.SelectObject (srcHdc, oldSrcBitmap); + OS.SelectObject (memHdc, oldMemBitmap); + OS.DeleteObject (srcHdc); + OS.DeleteObject (memHdc); + OS.ReleaseDC (0, hDC); + byte [] srcData = new byte [sizeInBytes]; + OS.MoveMemory (srcData, pBits [0], sizeInBytes); + if (alpha !is -1) { + for (int y = 0, dp = 0; y < imgHeight; ++y) { + for (int x = 0; x < imgWidth; ++x) { + srcData [dp + 3] = (byte)alpha; + dp += 4; + } + } + } else if (alphaData !is null) { + for (int y = 0, dp = 0, ap = 0; y < imgHeight; ++y) { + for (int x = 0; x < imgWidth; ++x) { + srcData [dp + 3] = alphaData [ap++]; + dp += 4; + } + } + } else if (transparentPixel !is -1) { + for (int y = 0, dp = 0; y < imgHeight; ++y) { + for (int x = 0; x < imgWidth; ++x) { + if (srcData [dp] is blue && srcData [dp + 1] is green && srcData [dp + 2] is red) { + srcData [dp + 3] = (byte)0; + } else { + srcData [dp + 3] = (byte)0xFF; + } + dp += 4; + } + } + } + OS.MoveMemory (pBits [0], srcData, sizeInBytes); + return memDib; +} + +static Image createIcon (Image image) { + Device device = image.getDevice (); + ImageData data = image.getImageData (); + if (data.alpha is -1 && data.alphaData is null) { + ImageData mask = data.getTransparencyMask (); + return new Image (device, data, mask); + } + int width = data.width, height = data.height; + int hMask, hBitmap; + int hDC = device.internal_new_GC (null); + int dstHdc = OS.CreateCompatibleDC (hDC), oldDstBitmap; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) { + hBitmap = Display.create32bitDIB (image.handle, data.alpha, data.alphaData, data.transparentPixel); + hMask = OS.CreateBitmap (width, height, 1, 1, null); + oldDstBitmap = OS.SelectObject (dstHdc, hMask); + OS.PatBlt (dstHdc, 0, 0, width, height, OS.BLACKNESS); + } else { + hMask = Display.createMaskFromAlpha (data, width, height); + /* Icons need black pixels where the mask is transparent */ + hBitmap = OS.CreateCompatibleBitmap (hDC, width, height); + oldDstBitmap = OS.SelectObject (dstHdc, hBitmap); + int srcHdc = OS.CreateCompatibleDC (hDC); + int oldSrcBitmap = OS.SelectObject (srcHdc, image.handle); + OS.PatBlt (dstHdc, 0, 0, width, height, OS.BLACKNESS); + OS.BitBlt (dstHdc, 0, 0, width, height, srcHdc, 0, 0, OS.SRCINVERT); + OS.SelectObject (srcHdc, hMask); + OS.BitBlt (dstHdc, 0, 0, width, height, srcHdc, 0, 0, OS.SRCAND); + OS.SelectObject (srcHdc, image.handle); + OS.BitBlt (dstHdc, 0, 0, width, height, srcHdc, 0, 0, OS.SRCINVERT); + OS.SelectObject (srcHdc, oldSrcBitmap); + OS.DeleteDC (srcHdc); + } + OS.SelectObject (dstHdc, oldDstBitmap); + OS.DeleteDC (dstHdc); + device.internal_dispose_GC (hDC, null); + ICONINFO info = new ICONINFO (); + info.fIcon = true; + info.hbmColor = hBitmap; + info.hbmMask = hMask; + int hIcon = OS.CreateIconIndirect (info); + if (hIcon is 0) DWT.error(DWT.ERROR_NO_HANDLES); + OS.DeleteObject (hBitmap); + OS.DeleteObject (hMask); + return Image.win32_new (device, DWT.ICON, hIcon); +} + +static int createMaskFromAlpha (ImageData data, int destWidth, int destHeight) { + int srcWidth = data.width; + int srcHeight = data.height; + ImageData mask = ImageData.internal_new (srcWidth, srcHeight, 1, + new PaletteData(new RGB [] {new RGB (0, 0, 0), new RGB (0xff, 0xff, 0xff)}), + 2, null, 1, null, null, -1, -1, -1, 0, 0, 0, 0); + int ap = 0; + for (int y = 0; y < mask.height; y++) { + for (int x = 0; x < mask.width; x++) { + mask.setPixel (x, y, (data.alphaData [ap++] & 0xff) <= 127 ? 1 : 0); + } + } + int hMask = OS.CreateBitmap (srcWidth, srcHeight, 1, 1, mask.data); + if (srcWidth !is destWidth || srcHeight !is destHeight) { + int hdc = OS.GetDC (0); + int hdc1 = OS.CreateCompatibleDC (hdc); + OS.SelectObject (hdc1, hMask); + int hdc2 = OS.CreateCompatibleDC (hdc); + int hMask2 = OS.CreateBitmap (destWidth, destHeight, 1, 1, null); + OS.SelectObject (hdc2, hMask2); + if (!OS.IsWinCE) OS.SetStretchBltMode(hdc2, OS.COLORONCOLOR); + OS.StretchBlt (hdc2, 0, 0, destWidth, destHeight, hdc1, 0, 0, srcWidth, srcHeight, OS.SRCCOPY); + OS.DeleteDC (hdc1); + OS.DeleteDC (hdc2); + OS.ReleaseDC (0, hdc); + OS.DeleteObject(hMask); + hMask = hMask2; + } + return hMask; +} + +static synchronized void deregister (Display display) { + for (int i=0; i<Displays.length; i++) { + if (display is Displays [i]) Displays [i] = null; + } +} + +/** + * Destroys the device in the operating system and releases + * the device's handle. If the device does not have a handle, + * this method may do nothing depending on the device. + * <p> + * This method is called after <code>release</code>. + * </p> + * @see Device#dispose + * @see #release + */ +protected void destroy () { + if (this is Default) Default = null; + deregister (this); + destroyDisplay (); +} + +void destroyDisplay () { +} + +/** + * Causes the <code>run()</code> method of the runnable to + * be invoked by the user-interface thread just before the + * receiver is disposed. Specifying a <code>null</code> runnable + * is ignored. + * + * @param runnable code to run at dispose time. + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void disposeExec (Runnable runnable) { + checkDevice (); + if (disposeList is null) disposeList = new Runnable [4]; + for (int i=0; i<disposeList.length; i++) { + if (disposeList [i] is null) { + disposeList [i] = runnable; + return; + } + } + Runnable [] newDisposeList = new Runnable [disposeList.length + 4]; + System.arraycopy (disposeList, 0, newDisposeList, 0, disposeList.length); + newDisposeList [disposeList.length] = runnable; + disposeList = newDisposeList; +} + +void drawMenuBars () { + if (bars is null) return; + for (int i=0; i<bars.length; i++) { + Menu menu = bars [i]; + if (menu !is null && !menu.isDisposed ()) menu.update (); + } + bars = null; +} + +int embeddedProc (int hwnd, int msg, int wParam, int lParam) { + switch (msg) { + case SWT_KEYMSG: { + MSG keyMsg = new MSG (); + OS.MoveMemory (keyMsg, lParam, MSG.sizeof); + OS.TranslateMessage (keyMsg); + OS.DispatchMessage (keyMsg); + int hHeap = OS.GetProcessHeap (); + OS.HeapFree (hHeap, 0, lParam); + break; + } + case SWT_DESTROY: { + OS.DestroyWindow (hwnd); + if (embeddedCallback !is null) embeddedCallback.dispose (); + if (getMsgCallback !is null) getMsgCallback.dispose (); + embeddedCallback = getMsgCallback = null; + embeddedProc = getMsgProc = 0; + break; + } + } + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +/** + * Does whatever display specific cleanup is required, and then + * uses the code in <code>DWTError.error</code> to handle the error. + * + * @param code the descriptive error code + * + * @see DWT#error(int) + */ +void error (int code) { + DWT.error (code); +} + +bool filterEvent (Event event) { + if (filterTable !is null) filterTable.sendEvent (event); + return false; +} + +bool filters (int eventType) { + if (filterTable is null) return false; + return filterTable.hooks (eventType); +} + +bool filterMessage (MSG msg) { + int message = msg.message; + if (OS.WM_KEYFIRST <= message && message <= OS.WM_KEYLAST) { + Control control = findControl (msg.hwnd); + if (control !is null) { + if (translateAccelerator (msg, control) || translateMnemonic (msg, control) || translateTraversal (msg, control)) { + lastAscii = lastKey = 0; + lastVirtual = lastNull = lastDead = false; + return true; + } + } + } + return false; +} + +Control findControl (int handle) { + if (handle is 0) return null; + int hwndOwner = 0; + do { + Control control = getControl (handle); + if (control !is null) return control; + hwndOwner = OS.GetWindow (handle, OS.GW_OWNER); + handle = OS.GetParent (handle); + } while (handle !is 0 && handle !is hwndOwner); + return null; +} + +/** + * Given the operating system handle for a widget, returns + * the instance of the <code>Widget</code> subclass which + * represents it in the currently running application, if + * such exists, or null if no matching widget can be found. + * <p> + * <b>IMPORTANT:</b> This method should not be called from + * application code. The arguments are platform-specific. + * </p> + * + * @param handle the handle for the widget + * @return the DWT widget that the handle represents + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Widget findWidget (int handle) { + checkDevice (); + return getControl (handle); +} + +/** + * Given the operating system handle for a widget, + * and widget-specific id, returns the instance of + * the <code>Widget</code> subclass which represents + * the handle/id pair in the currently running application, + * if such exists, or null if no matching widget can be found. + * <p> + * <b>IMPORTANT:</b> This method should not be called from + * application code. The arguments are platform-specific. + * </p> + * + * @param handle the handle for the widget + * @param id the id for the subwidget (usually an item) + * @return the DWT widget that the handle/id pair represents + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 3.1 + */ +public Widget findWidget (int handle, int id) { + checkDevice (); + Control control = getControl (handle); + return control !is null ? control.findItem (id) : null; +} + +/** + * Given a widget and a widget-specific id, returns the + * instance of the <code>Widget</code> subclass which represents + * the widget/id pair in the currently running application, + * if such exists, or null if no matching widget can be found. + * + * @param widget the widget + * @param id the id for the subwidget (usually an item) + * @return the DWT subwidget (usually an item) that the widget/id pair represents + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 3.3 + */ +public Widget findWidget (Widget widget, int id) { + checkDevice (); + if (widget instanceof Control) { + return findWidget (((Control) widget).handle, id); + } + return null; +} + +int foregroundIdleProc (int code, int wParam, int lParam) { + if (runMessages) { + if (code >= 0) { + if (getMessageCount () !is 0) { + if (runMessagesInIdle) { + OS.PostMessage (hwndMessage, SWT_RUNASYNC, 0, 0); + } + wakeThread (); + } + } + } + return OS.CallNextHookEx (idleHook, code, wParam, lParam); +} + +/** + * Returns the display which the given thread is the + * user-interface thread for, or null if the given thread + * is not a user-interface thread for any display. Specifying + * <code>null</code> as the thread will return <code>null</code> + * for the display. + * + * @param thread the user-interface thread + * @return the display for the given thread + */ +public static synchronized Display findDisplay (Thread thread) { + for (int i=0; i<Displays.length; i++) { + Display display = Displays [i]; + if (display !is null && display.thread is thread) { + return display; + } + } + return null; +} + +/** + * Returns the currently active <code>Shell</code>, or null + * if no shell belonging to the currently running application + * is active. + * + * @return the active shell or null + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Shell getActiveShell () { + checkDevice (); + Control control = findControl (OS.GetActiveWindow ()); + return control !is null ? control.getShell () : null; +} + +/** + * Returns a rectangle describing the receiver's size and location. + * + * @return the bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Rectangle getBounds () { + checkDevice (); + if (OS.GetSystemMetrics (OS.SM_CMONITORS) < 2) { + int width = OS.GetSystemMetrics (OS.SM_CXSCREEN); + int height = OS.GetSystemMetrics (OS.SM_CYSCREEN); + return new Rectangle (0, 0, width, height); + } + int x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN); + int y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN); + int width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN); + int height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN); + return new Rectangle (x, y, width, height); +} + +/** + * Returns the display which the currently running thread is + * the user-interface thread for, or null if the currently + * running thread is not a user-interface thread for any display. + * + * @return the current display + */ +public static synchronized Display getCurrent () { + return findDisplay (Thread.currentThread ()); +} + +int getClickCount (int type, int button, int hwnd, int lParam) { + switch (type) { + case DWT.MouseDown: + int doubleClick = OS.GetDoubleClickTime (); + if (clickRect is null) clickRect = new RECT (); + int deltaTime = Math.abs (lastTime - getLastEventTime ()); + POINT pt = new POINT (); + pt.x = (short) (lParam & 0xFFFF); + pt.y = (short) (lParam >> 16); + if (lastClickHwnd is hwnd && lastButton is button && (deltaTime <= doubleClick) && OS.PtInRect (clickRect, pt)) { + clickCount++; + } else { + clickCount = 1; + } + //FALL THROUGH + case DWT.MouseDoubleClick: + lastButton = button; + lastClickHwnd = hwnd; + lastTime = getLastEventTime (); + int xInset = OS.GetSystemMetrics (OS.SM_CXDOUBLECLK) / 2; + int yInset = OS.GetSystemMetrics (OS.SM_CYDOUBLECLK) / 2; + int x = (short) (lParam & 0xFFFF), y = (short) (lParam >> 16); + OS.SetRect (clickRect, x - xInset, y - yInset, x + xInset, y + yInset); + //FALL THROUGH + case DWT.MouseUp: + return clickCount; + } + return 0; +} + +/** + * Returns a rectangle which describes the area of the + * receiver which is capable of displaying data. + * + * @return the client area + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #getBounds + */ +public Rectangle getClientArea () { + checkDevice (); + if (OS.GetSystemMetrics (OS.SM_CMONITORS) < 2) { + RECT rect = new RECT (); + OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); + } + int x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN); + int y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN); + int width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN); + int height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN); + return new Rectangle (x, y, width, height); +} + +Control getControl (int handle) { + if (handle is 0) return null; + if (lastControl !is null && lastHwnd is handle) { + return lastControl; + } + if (lastGetControl !is null && lastGetHwnd is handle) { + return lastGetControl; + } + int index; + if (USE_PROPERTY) { + index = OS.GetProp (handle, SWT_OBJECT_INDEX) - 1; + } else { + index = OS.GetWindowLong (handle, OS.GWL_USERDATA) - 1; + } + if (0 <= index && index < controlTable.length) { + Control control = controlTable [index]; + /* + * Because GWL_USERDATA can be used by native widgets that + * do not belong to DWT, it is possible that GWL_USERDATA + * could return an index that is in the range of the table, + * but was not put there by DWT. Therefore, it is necessary + * to check the handle of the control that is in the table + * against the handle that provided the GWL_USERDATA. + */ + if (control !is null && control.checkHandle (handle)) { + lastGetHwnd = handle; + lastGetControl = control; + return control; + } + } + return null; +} + +/** + * Returns the control which the on-screen pointer is currently + * over top of, or null if it is not currently over one of the + * controls built by the currently running application. + * + * @return the control under the cursor + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Control getCursorControl () { + checkDevice (); + POINT pt = new POINT (); + if (!OS.GetCursorPos (pt)) return null; + return findControl (OS.WindowFromPoint (pt)); +} + +/** + * Returns the location of the on-screen pointer relative + * to the top left corner of the screen. + * + * @return the cursor location + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Point getCursorLocation () { + checkDevice (); + POINT pt = new POINT (); + OS.GetCursorPos (pt); + return new Point (pt.x, pt.y); +} + +/** + * Returns an array containing the recommended cursor sizes. + * + * @return the array of cursor sizes + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 3.0 + */ +public Point [] getCursorSizes () { + checkDevice (); + return new Point [] { + new Point (OS.GetSystemMetrics (OS.SM_CXCURSOR), OS.GetSystemMetrics (OS.SM_CYCURSOR))}; +} + +/** + * Returns the default display. One is created (making the + * thread that invokes this method its user-interface thread) + * if it did not already exist. + * + * @return the default display + */ +public static synchronized Display getDefault () { + if (Default is null) Default = new Display (); + return Default; +} + +static bool isValidClass (Class clazz) { + String name = clazz.getName (); + int index = name.lastIndexOf ('.'); + return name.substring (0, index + 1).equals (PACKAGE_PREFIX); +} + +/** + * Returns the application defined property of the receiver + * with the specified name, or null if it has not been set. + * <p> + * Applications may have associated arbitrary objects with the + * receiver in this fashion. If the objects stored in the + * properties need to be notified when the display is disposed + * of, it is the application's responsibility to provide a + * <code>disposeExec()</code> handler which does so. + * </p> + * + * @param key the name of the property + * @return the value of the property or null if it has not been set + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the key is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #setData(String, Object) + * @see #disposeExec(Runnable) + */ +public Object getData (String key) { + checkDevice (); + if (key is null) error (DWT.ERROR_NULL_ARGUMENT); + if (key.equals (RUN_MESSAGES_IN_IDLE_KEY)) { + return new bool (runMessagesInIdle); + } + if (keys is null) return null; + for (int i=0; i<keys.length; i++) { + if (keys [i].equals (key)) return values [i]; + } + return null; +} + +/** + * Returns the application defined, display specific data + * associated with the receiver, or null if it has not been + * set. The <em>display specific data</em> is a single, + * unnamed field that is stored with every display. + * <p> + * Applications may put arbitrary objects in this field. If + * the object stored in the display specific data needs to + * be notified when the display is disposed of, it is the + * application's responsibility to provide a + * <code>disposeExec()</code> handler which does so. + * </p> + * + * @return the display specific data + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #setData(Object) + * @see #disposeExec(Runnable) + */ +public Object getData () { + checkDevice (); + return data; +} + +/** + * Returns the button dismissal alignment, one of <code>LEFT</code> or <code>RIGHT</code>. + * The button dismissal alignment is the ordering that should be used when positioning the + * default dismissal button for a dialog. For example, in a dialog that contains an OK and + * CANCEL button, on platforms where the button dismissal alignment is <code>LEFT</code>, the + * button ordering should be OK/CANCEL. When button dismissal alignment is <code>RIGHT</code>, + * the button ordering should be CANCEL/OK. + * + * @return the button dismissal order + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 2.1 + */ +public int getDismissalAlignment () { + checkDevice (); + return DWT.LEFT; +} + + +/** + * Returns the longest duration, in milliseconds, between + * two mouse button clicks that will be considered a + * <em>double click</em> by the underlying operating system. + * + * @return the double click time + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public int getDoubleClickTime () { + checkDevice (); + return OS.GetDoubleClickTime (); +} + +/** + * Returns the control which currently has keyboard focus, + * or null if keyboard events are not currently going to + * any of the controls built by the currently running + * application. + * + * @return the control under the cursor + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Control getFocusControl () { + checkDevice (); + if (focusControl !is null && !focusControl.isDisposed ()) { + return focusControl; + } + return _getFocusControl (); +} + +String getFontName (LOGFONT logFont) { + char[] chars; + if (OS.IsUnicode) { + chars = ((LOGFONTW)logFont).lfFaceName; + } else { + chars = new char[OS.LF_FACESIZE]; + byte[] bytes = ((LOGFONTA)logFont).lfFaceName; + OS.MultiByteToWideChar (OS.CP_ACP, OS.MB_PRECOMPOSED, bytes, bytes.length, chars, chars.length); + } + int index = 0; + while (index < chars.length) { + if (chars [index] is 0) break; + index++; + } + return new String (chars, 0, index); +} + +/** + * Returns true when the high contrast mode is enabled. + * Otherwise, false is returned. + * <p> + * Note: This operation is a hint and is not supported on + * platforms that do not have this concept. + * </p> + * + * @return the high contrast mode + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 3.0 + */ +public bool getHighContrast () { + checkDevice (); + if (OS.IsWinCE) return false; + HIGHCONTRAST pvParam = new HIGHCONTRAST (); + pvParam.cbSize = HIGHCONTRAST.sizeof; + OS.SystemParametersInfo (OS.SPI_GETHIGHCONTRAST, 0, pvParam, 0); + return (pvParam.dwFlags & OS.HCF_HIGHCONTRASTON) !is 0; +} + +/** + * Returns the maximum allowed depth of icons on this display, in bits per pixel. + * On some platforms, this may be different than the actual depth of the display. + * + * @return the maximum icon depth + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see Device#getDepth + */ +public int getIconDepth () { + checkDevice (); + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) { + if (getDepth () >= 24) return 32; + } + + /* Use the character encoding for the default locale */ + TCHAR buffer1 = new TCHAR (0, "Control Panel\\Desktop\\WindowMetrics", true); //$NON-NLS-1$ + + int [] phkResult = new int [1]; + int result = OS.RegOpenKeyEx (OS.HKEY_CURRENT_USER, buffer1, 0, OS.KEY_READ, phkResult); + if (result !is 0) return 4; + int depth = 4; + int [] lpcbData = new int [1]; + + /* Use the character encoding for the default locale */ + TCHAR buffer2 = new TCHAR (0, "Shell Icon BPP", true); //$NON-NLS-1$ + result = OS.RegQueryValueEx (phkResult [0], buffer2, 0, null, (TCHAR) null, lpcbData); + if (result is 0) { + TCHAR lpData = new TCHAR (0, lpcbData [0] / TCHAR.sizeof); + result = OS.RegQueryValueEx (phkResult [0], buffer2, 0, null, lpData, lpcbData); + if (result is 0) { + try { + depth = Integer.parseInt (lpData.toString (0, lpData.strlen ())); + } catch (NumberFormatException e) {} + } + } + OS.RegCloseKey (phkResult [0]); + return depth; +} + +/** + * Returns an array containing the recommended icon sizes. + * + * @return the array of icon sizes + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see Decorations#setImages(Image[]) + * + * @since 3.0 + */ +public Point [] getIconSizes () { + checkDevice (); + return new Point [] { + new Point (OS.GetSystemMetrics (OS.SM_CXSMICON), OS.GetSystemMetrics (OS.SM_CYSMICON)), + new Point (OS.GetSystemMetrics (OS.SM_CXICON), OS.GetSystemMetrics (OS.SM_CYICON)), + }; +} + +ImageList getImageList (int style, int width, int height) { + if (imageList is null) imageList = new ImageList [4]; + + int i = 0; + int length = imageList.length; + while (i < length) { + ImageList list = imageList [i]; + if (list is null) break; + Point size = list.getImageSize(); + if (size.x is width && size.y is height) { + if (list.getStyle () is style) { + list.addRef(); + return list; + } + } + i++; + } + + if (i is length) { + ImageList [] newList = new ImageList [length + 4]; + System.arraycopy (imageList, 0, newList, 0, length); + imageList = newList; + } + + ImageList list = new ImageList (style); + imageList [i] = list; + list.addRef(); + return list; +} + +ImageList getImageListToolBar (int style, int width, int height) { + if (toolImageList is null) toolImageList = new ImageList [4]; + + int i = 0; + int length = toolImageList.length; + while (i < length) { + ImageList list = toolImageList [i]; + if (list is null) break; + Point size = list.getImageSize(); + if (size.x is width && size.y is height) { + if (list.getStyle () is style) { + list.addRef(); + return list; + } + } + i++; + } + + if (i is length) { + ImageList [] newList = new ImageList [length + 4]; + System.arraycopy (toolImageList, 0, newList, 0, length); + toolImageList = newList; + } + + ImageList list = new ImageList (style); + toolImageList [i] = list; + list.addRef(); + return list; +} + +ImageList getImageListToolBarDisabled (int style, int width, int height) { + if (toolDisabledImageList is null) toolDisabledImageList = new ImageList [4]; + + int i = 0; + int length = toolDisabledImageList.length; + while (i < length) { + ImageList list = toolDisabledImageList [i]; + if (list is null) break; + Point size = list.getImageSize(); + if (size.x is width && size.y is height) { + if (list.getStyle () is style) { + list.addRef(); + return list; + } + } + i++; + } + + if (i is length) { + ImageList [] newList = new ImageList [length + 4]; + System.arraycopy (toolDisabledImageList, 0, newList, 0, length); + toolDisabledImageList = newList; + } + + ImageList list = new ImageList (style); + toolDisabledImageList [i] = list; + list.addRef(); + return list; +} + +ImageList getImageListToolBarHot (int style, int width, int height) { + if (toolHotImageList is null) toolHotImageList = new ImageList [4]; + + int i = 0; + int length = toolHotImageList.length; + while (i < length) { + ImageList list = toolHotImageList [i]; + if (list is null) break; + Point size = list.getImageSize(); + if (size.x is width && size.y is height) { + if (list.getStyle () is style) { + list.addRef(); + return list; + } + } + i++; + } + + if (i is length) { + ImageList [] newList = new ImageList [length + 4]; + System.arraycopy (toolHotImageList, 0, newList, 0, length); + toolHotImageList = newList; + } + + ImageList list = new ImageList (style); + toolHotImageList [i] = list; + list.addRef(); + return list; +} + +int getLastEventTime () { + return OS.IsWinCE ? OS.GetTickCount () : OS.GetMessageTime (); +} + +MenuItem getMenuItem (int id) { + if (items is null) return null; + id = id - ID_START; + if (0 <= id && id < items.length) return items [id]; + return null; +} + +int getMessageCount () { + return synchronizer.getMessageCount (); +} + + +Shell getModalShell () { + if (modalShells is null) return null; + int index = modalShells.length; + while (--index >= 0) { + Shell shell = modalShells [index]; + if (shell !is null) return shell; + } + return null; +} + +Shell getModalDialogShell () { + if (modalDialogShell !is null && modalDialogShell.isDisposed ()) modalDialogShell = null; + return modalDialogShell; +} + +/** + * Returns an array of monitors attached to the device. + * + * @return the array of monitors + * + * @since 3.0 + */ +public Monitor [] getMonitors () { + checkDevice (); + if (OS.IsWinCE || OS.WIN32_VERSION < OS.VERSION (4, 10)) { + return new Monitor [] {getPrimaryMonitor ()}; + } + monitors = new Monitor [4]; + Callback callback = new Callback (this, "monitorEnumProc", 4); //$NON-NLS-1$ + int lpfnEnum = callback.getAddress (); + if (lpfnEnum is 0) DWT.error (DWT.ERROR_NO_MORE_CALLBACKS); + OS.EnumDisplayMonitors (0, null, lpfnEnum, 0); + callback.dispose (); + Monitor [] result = new Monitor [monitorCount]; + System.arraycopy (monitors, 0, result, 0, monitorCount); + monitors = null; + monitorCount = 0; + return result; +} + +int getMsgProc (int code, int wParam, int lParam) { + if (embeddedHwnd is 0) { + int hInstance = OS.GetModuleHandle (null); + embeddedHwnd = OS.CreateWindowEx (0, + windowClass, + null, + OS.WS_OVERLAPPED, + 0, 0, 0, 0, + 0, + 0, + hInstance, + null); + embeddedCallback = new Callback (this, "embeddedProc", 4); //$NON-NLS-1$ + embeddedProc = embeddedCallback.getAddress (); + if (embeddedProc is 0) error (DWT.ERROR_NO_MORE_CALLBACKS); + OS.SetWindowLong (embeddedHwnd, OS.GWL_WNDPROC, embeddedProc); + } + if (code >= 0 && wParam !is OS.PM_NOREMOVE) { + MSG msg = new MSG (); + OS.MoveMemory (msg, lParam, MSG.sizeof); + switch (msg.message) { + case OS.WM_KEYDOWN: + case OS.WM_KEYUP: + case OS.WM_SYSKEYDOWN: + case OS.WM_SYSKEYUP: { + Control control = findControl (msg.hwnd); + if (control !is null) { + int hHeap = OS.GetProcessHeap (); + int keyMsg = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, MSG.sizeof); + OS.MoveMemory (keyMsg, msg, MSG.sizeof); + OS.PostMessage (hwndMessage, SWT_KEYMSG, wParam, keyMsg); + msg.message = OS.WM_NULL; + OS.MoveMemory (lParam, msg, MSG.sizeof); + } + } + } + } + return OS.CallNextHookEx (msgHook, code, wParam, lParam); +} + +/** + * Returns the primary monitor for that device. + * + * @return the primary monitor + * + * @since 3.0 + */ +public Monitor getPrimaryMonitor () { + checkDevice (); + if (OS.IsWinCE || OS.WIN32_VERSION < OS.VERSION (4, 10)) { + Monitor monitor = new Monitor(); + int width = OS.GetSystemMetrics (OS.SM_CXSCREEN); + int height = OS.GetSystemMetrics (OS.SM_CYSCREEN); + monitor.width = width; + monitor.height = height; + RECT rect = new RECT (); + OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0); + monitor.clientX = rect.left; + monitor.clientY = rect.top; + monitor.clientWidth = rect.right - rect.left; + monitor.clientHeight = rect.bottom - rect.top; + return monitor; + } + monitors = new Monitor [4]; + Callback callback = new Callback (this, "monitorEnumProc", 4); //$NON-NLS-1$ + int lpfnEnum = callback.getAddress (); + if (lpfnEnum is 0) DWT.error (DWT.ERROR_NO_MORE_CALLBACKS); + OS.EnumDisplayMonitors (0, null, lpfnEnum, 0); + callback.dispose (); + Monitor result = null; + MONITORINFO lpmi = new MONITORINFO (); + lpmi.cbSize = MONITORINFO.sizeof; + for (int i = 0; i < monitorCount; i++) { + Monitor monitor = monitors [i]; + OS.GetMonitorInfo (monitors [i].handle, lpmi); + if ((lpmi.dwFlags & OS.MONITORINFOF_PRIMARY) !is 0) { + result = monitor; + break; + } + } + monitors = null; + monitorCount = 0; + return result; +} + +/** + * Returns a (possibly empty) array containing all shells which have + * not been disposed and have the receiver as their display. + * + * @return the receiver's shells + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Shell [] getShells () { + checkDevice (); + int index = 0; + Shell [] result = new Shell [16]; + for (int i = 0; i < controlTable.length; i++) { + Control control = controlTable [i]; + if (control !is null && control instanceof Shell) { + int j = 0; + while (j < index) { + if (result [j] is control) break; + j++; + } + if (j is index) { + if (index is result.length) { + Shell [] newResult = new Shell [index + 16]; + System.arraycopy (result, 0, newResult, 0, index); + result = newResult; + } + result [index++] = (Shell) control; + } + } + } + if (index is result.length) return result; + Shell [] newResult = new Shell [index]; + System.arraycopy (result, 0, newResult, 0, index); + return newResult; +} + +Image getSortImage (int direction) { + switch (direction) { + case DWT.UP: { + if (upArrow !is null) return upArrow; + Color c1 = getSystemColor (DWT.COLOR_WIDGET_NORMAL_SHADOW); + Color c2 = getSystemColor (DWT.COLOR_WIDGET_HIGHLIGHT_SHADOW); + Color c3 = getSystemColor (DWT.COLOR_WIDGET_BACKGROUND); + PaletteData palette = new PaletteData(new RGB [] {c1.getRGB (), c2.getRGB (), c3.getRGB ()}); + ImageData imageData = new ImageData (8, 8, 4, palette); + imageData.transparentPixel = 2; + upArrow = new Image (this, imageData); + GC gc = new GC (upArrow); + gc.setBackground (c3); + gc.fillRectangle (0, 0, 8, 8); + gc.setForeground (c1); + int [] line1 = new int [] {0,6, 1,6, 1,4, 2,4, 2,2, 3,2, 3,1}; + gc.drawPolyline (line1); + gc.setForeground (c2); + int [] line2 = new int [] {0,7, 7,7, 7,6, 6,6, 6,4, 5,4, 5,2, 4,2, 4,1}; + gc.drawPolyline (line2); + gc.dispose (); + return upArrow; + } + case DWT.DOWN: { + if (downArrow !is null) return downArrow; + Color c1 = getSystemColor (DWT.COLOR_WIDGET_NORMAL_SHADOW); + Color c2 = getSystemColor (DWT.COLOR_WIDGET_HIGHLIGHT_SHADOW); + Color c3 = getSystemColor (DWT.COLOR_WIDGET_BACKGROUND); + PaletteData palette = new PaletteData (new RGB [] {c1.getRGB (), c2.getRGB (), c3.getRGB ()}); + ImageData imageData = new ImageData (8, 8, 4, palette); + imageData.transparentPixel = 2; + downArrow = new Image (this, imageData); + GC gc = new GC (downArrow); + gc.setBackground (c3); + gc.fillRectangle (0, 0, 8, 8); + gc.setForeground (c1); + int [] line1 = new int [] {7,0, 0,0, 0,1, 1,1, 1,3, 2,3, 2,5, 3,5, 3,6}; + gc.drawPolyline (line1); + gc.setForeground (c2); + int [] line2 = new int [] {4,6, 4,5, 5,5, 5,3, 6,3, 6,1, 7,1}; + gc.drawPolyline (line2); + gc.dispose (); + return downArrow; + } + } + return null; +} + +/** + * Returns the thread that has invoked <code>syncExec</code> + * or null if no such runnable is currently being invoked by + * the user-interface thread. + * <p> + * Note: If a runnable invoked by asyncExec is currently + * running, this method will return null. + * </p> + * + * @return the receiver's sync-interface thread + * + * @exception DWTException <ul> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Thread getSyncThread () { + if (isDisposed ()) error (DWT.ERROR_DEVICE_DISPOSED); + return synchronizer.syncThread; +} + +/** + * Returns the matching standard color for the given + * constant, which should be one of the color constants + * specified in class <code>DWT</code>. Any value other + * than one of the DWT color constants which is passed + * in will result in the color black. This color should + * not be free'd because it was allocated by the system, + * not the application. + * + * @param id the color constant + * @return the matching color + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see DWT + */ +public Color getSystemColor (int id) { + checkDevice (); + int pixel = 0x00000000; + switch (id) { + case DWT.COLOR_WIDGET_DARK_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DDKSHADOW); break; + case DWT.COLOR_WIDGET_NORMAL_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DSHADOW); break; + case DWT.COLOR_WIDGET_LIGHT_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DLIGHT); break; + case DWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DHIGHLIGHT); break; + case DWT.COLOR_WIDGET_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_3DFACE); break; + case DWT.COLOR_WIDGET_BORDER: pixel = OS.GetSysColor (OS.COLOR_WINDOWFRAME); break; + case DWT.COLOR_WIDGET_FOREGROUND: + case DWT.COLOR_LIST_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_WINDOWTEXT); break; + case DWT.COLOR_LIST_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_WINDOW); break; + case DWT.COLOR_LIST_SELECTION: pixel = OS.GetSysColor (OS.COLOR_HIGHLIGHT); break; + case DWT.COLOR_LIST_SELECTION_TEXT: pixel = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT);break; + case DWT.COLOR_INFO_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_INFOTEXT); break; + case DWT.COLOR_INFO_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_INFOBK); break; + case DWT.COLOR_TITLE_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_CAPTIONTEXT); break; + case DWT.COLOR_TITLE_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_ACTIVECAPTION); break; + case DWT.COLOR_TITLE_BACKGROUND_GRADIENT: + pixel = OS.GetSysColor (OS.COLOR_GRADIENTACTIVECAPTION); + if (pixel is 0) pixel = OS.GetSysColor (OS.COLOR_ACTIVECAPTION); + break; + case DWT.COLOR_TITLE_INACTIVE_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTIONTEXT); break; + case DWT.COLOR_TITLE_INACTIVE_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTION); break; + case DWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT: + pixel = OS.GetSysColor (OS.COLOR_GRADIENTINACTIVECAPTION); + if (pixel is 0) pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTION); + break; + default: + return super.getSystemColor (id); + } + return Color.win32_new (this, pixel); +} + +/** + * Returns the matching standard platform cursor for the given + * constant, which should be one of the cursor constants + * specified in class <code>DWT</code>. This cursor should + * not be free'd because it was allocated by the system, + * not the application. A value of <code>null</code> will + * be returned if the supplied constant is not an DWT cursor + * constant. + * + * @param id the DWT cursor constant + * @return the corresponding cursor or <code>null</code> + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see DWT#CURSOR_ARROW + * @see DWT#CURSOR_WAIT + * @see DWT#CURSOR_CROSS + * @see DWT#CURSOR_APPSTARTING + * @see DWT#CURSOR_HELP + * @see DWT#CURSOR_SIZEALL + * @see DWT#CURSOR_SIZENESW + * @see DWT#CURSOR_SIZENS + * @see DWT#CURSOR_SIZENWSE + * @see DWT#CURSOR_SIZEWE + * @see DWT#CURSOR_SIZEN + * @see DWT#CURSOR_SIZES + * @see DWT#CURSOR_SIZEE + * @see DWT#CURSOR_SIZEW + * @see DWT#CURSOR_SIZENE + * @see DWT#CURSOR_SIZESE + * @see DWT#CURSOR_SIZESW + * @see DWT#CURSOR_SIZENW + * @see DWT#CURSOR_UPARROW + * @see DWT#CURSOR_IBEAM + * @see DWT#CURSOR_NO + * @see DWT#CURSOR_HAND + * + * @since 3.0 + */ +public Cursor getSystemCursor (int id) { + checkDevice (); + if (!(0 <= id && id < cursors.length)) return null; + if (cursors [id] is null) { + cursors [id] = new Cursor (this, id); + } + return cursors [id]; +} + +/** + * Returns a reasonable font for applications to use. + * On some platforms, this will match the "default font" + * or "system font" if such can be found. This font + * should not be free'd because it was allocated by the + * system, not the application. + * <p> + * Typically, applications which want the default look + * should simply not set the font on the widgets they + * create. Widgets are always created with the correct + * default font for the class of user-interface component + * they represent. + * </p> + * + * @return a font + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Font getSystemFont () { + checkDevice (); + if (systemFont !is null) return systemFont; + int hFont = 0; + if (!OS.IsWinCE) { + NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); + info.cbSize = NONCLIENTMETRICS.sizeof; + if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { + LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfMessageFont : ((NONCLIENTMETRICSA)info).lfMessageFont; + hFont = OS.CreateFontIndirect (logFont); + lfSystemFont = hFont !is 0 ? logFont : null; + } + } + if (hFont is 0) hFont = OS.GetStockObject (OS.DEFAULT_GUI_FONT); + if (hFont is 0) hFont = OS.GetStockObject (OS.SYSTEM_FONT); + return systemFont = Font.win32_new (this, hFont); +} + +/** + * Returns the matching standard platform image for the given + * constant, which should be one of the icon constants + * specified in class <code>DWT</code>. This image should + * not be free'd because it was allocated by the system, + * not the application. A value of <code>null</code> will + * be returned either if the supplied constant is not an + * DWT icon constant or if the platform does not define an + * image that corresponds to the constant. + * + * @param id the DWT icon constant + * @return the corresponding image or <code>null</code> + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see DWT#ICON_ERROR + * @see DWT#ICON_INFORMATION + * @see DWT#ICON_QUESTION + * @see DWT#ICON_WARNING + * @see DWT#ICON_WORKING + * + * @since 3.0 + */ +public Image getSystemImage (int id) { + checkDevice (); + switch (id) { + case DWT.ICON_ERROR: { + if (errorImage !is null) return errorImage; + int hIcon = OS.LoadImage (0, OS.OIC_HAND, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED); + return errorImage = Image.win32_new (this, DWT.ICON, hIcon); + } + case DWT.ICON_WORKING: + case DWT.ICON_INFORMATION: { + if (infoImage !is null) return infoImage; + int hIcon = OS.LoadImage (0, OS.OIC_INFORMATION, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED); + return infoImage = Image.win32_new (this, DWT.ICON, hIcon); + } + case DWT.ICON_QUESTION: { + if (questionImage !is null) return questionImage; + int hIcon = OS.LoadImage (0, OS.OIC_QUES, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED); + return questionImage = Image.win32_new (this, DWT.ICON, hIcon); + } + case DWT.ICON_WARNING: { + if (warningIcon !is null) return warningIcon; + int hIcon = OS.LoadImage (0, OS.OIC_BANG, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED); + return warningIcon = Image.win32_new (this, DWT.ICON, hIcon); + } + } + return null; +} + +/** + * Returns the single instance of the system tray or null + * when there is no system tray available for the platform. + * + * @return the system tray or <code>null</code> + * + * @exception DWTException <ul> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 3.0 + */ +public Tray getSystemTray () { + checkDevice (); + if (tray !is null) return tray; + if (!OS.IsWinCE) tray = new Tray (this, DWT.NONE); + return tray; +} + +/** + * Returns the user-interface thread for the receiver. + * + * @return the receiver's user-interface thread + * + * @exception DWTException <ul> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Thread getThread () { + if (isDisposed ()) error (DWT.ERROR_DEVICE_DISPOSED); + return thread; +} + +int hButtonTheme () { + if (hButtonTheme !is 0) return hButtonTheme; + return hButtonTheme = OS.OpenThemeData (hwndMessage, BUTTON); +} + +int hEditTheme () { + if (hEditTheme !is 0) return hEditTheme; + return hEditTheme = OS.OpenThemeData (hwndMessage, EDIT); +} + +int hExplorerBarTheme () { + if (hExplorerBarTheme !is 0) return hExplorerBarTheme; + return hExplorerBarTheme = OS.OpenThemeData (hwndMessage, EXPLORERBAR); +} + +int hScrollBarTheme () { + if (hScrollBarTheme !is 0) return hScrollBarTheme; + return hScrollBarTheme = OS.OpenThemeData (hwndMessage, SCROLLBAR); +} + +int hTabTheme () { + if (hTabTheme !is 0) return hTabTheme; + return hTabTheme = OS.OpenThemeData (hwndMessage, TAB); +} + +/** + * Invokes platform specific functionality to allocate a new GC handle. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Display</code>. It is marked public only so that it + * can be shared within the packages provided by DWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + * + * @param data the platform specific GC data + * @return the platform specific GC handle + * + * @exception DWTException <ul> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * @exception DWTError <ul> + * <li>ERROR_NO_HANDLES if a handle could not be obtained for gc creation</li> + * </ul> + */ +public int internal_new_GC (GCData data) { + if (isDisposed()) DWT.error(DWT.ERROR_DEVICE_DISPOSED); + int hDC = OS.GetDC (0); + if (hDC is 0) DWT.error (DWT.ERROR_NO_HANDLES); + if (data !is null) { + int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; + if ((data.style & mask) !is 0) { + data.layout = (data.style & DWT.RIGHT_TO_LEFT) !is 0 ? OS.LAYOUT_RTL : 0; + } else { + data.style |= DWT.LEFT_TO_RIGHT; + } + data.device = this; + data.hFont = getSystemFont ().handle; + } + return hDC; +} + +/** + * Initializes any internal resources needed by the + * device. + * <p> + * This method is called after <code>create</code>. + * </p> + * + * @see #create + */ +protected void init () { + super.init (); + + /* Create the callbacks */ + windowCallback = new Callback (this, "windowProc", 4); //$NON-NLS-1$ + windowProc = windowCallback.getAddress (); + if (windowProc is 0) error (DWT.ERROR_NO_MORE_CALLBACKS); + + /* Remember the current thread id */ + threadId = OS.GetCurrentThreadId (); + + /* Use the character encoding for the default locale */ + windowClass = new TCHAR (0, WindowName + WindowClassCount, true); + windowShadowClass = new TCHAR (0, WindowShadowName + WindowClassCount, true); + WindowClassCount++; + + /* Register the DWT window class */ + int hHeap = OS.GetProcessHeap (); + int hInstance = OS.GetModuleHandle (null); + WNDCLASS lpWndClass = new WNDCLASS (); + lpWndClass.hInstance = hInstance; + lpWndClass.lpfnWndProc = windowProc; + lpWndClass.style = OS.CS_BYTEALIGNWINDOW | OS.CS_DBLCLKS; + lpWndClass.hCursor = OS.LoadCursor (0, OS.IDC_ARROW); + int byteCount = windowClass.length () * TCHAR.sizeof; + lpWndClass.lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpWndClass.lpszClassName, windowClass, byteCount); + OS.RegisterClass (lpWndClass); + OS.HeapFree (hHeap, 0, lpWndClass.lpszClassName); + + /* Register the DWT drop shadow window class */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) lpWndClass.style |= OS.CS_DROPSHADOW; + byteCount = windowShadowClass.length () * TCHAR.sizeof; + lpWndClass.lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpWndClass.lpszClassName, windowShadowClass, byteCount); + OS.RegisterClass (lpWndClass); + OS.HeapFree (hHeap, 0, lpWndClass.lpszClassName); + + /* Create the message only HWND */ + hwndMessage = OS.CreateWindowEx (0, + windowClass, + null, + OS.WS_OVERLAPPED, + 0, 0, 0, 0, + 0, + 0, + hInstance, + null); + messageCallback = new Callback (this, "messageProc", 4); //$NON-NLS-1$ + messageProc = messageCallback.getAddress (); + if (messageProc is 0) error (DWT.ERROR_NO_MORE_CALLBACKS); + OS.SetWindowLong (hwndMessage, OS.GWL_WNDPROC, messageProc); + + /* Create the filter hook */ + if (!OS.IsWinCE) { + msgFilterCallback = new Callback (this, "msgFilterProc", 3); //$NON-NLS-1$ + msgFilterProc = msgFilterCallback.getAddress (); + if (msgFilterProc is 0) error (DWT.ERROR_NO_MORE_CALLBACKS); + filterHook = OS.SetWindowsHookEx (OS.WH_MSGFILTER, msgFilterProc, 0, threadId); + } + + /* Create the idle hook */ + if (!OS.IsWinCE) { + foregroundIdleCallback = new Callback (this, "foregroundIdleProc", 3); //$NON-NLS-1$ + foregroundIdleProc = foregroundIdleCallback.getAddress (); + if (foregroundIdleProc is 0) error (DWT.ERROR_NO_MORE_CALLBACKS); + idleHook = OS.SetWindowsHookEx (OS.WH_FOREGROUNDIDLE, foregroundIdleProc, 0, threadId); + } + + /* Register custom messages message */ + SWT_TASKBARCREATED = OS.RegisterWindowMessage (new TCHAR (0, "TaskbarCreated", true)); + SWT_RESTORECARET = OS.RegisterWindowMessage (new TCHAR (0, "SWT_RESTORECARET", true)); + + /* Initialize OLE */ + if (!OS.IsWinCE) OS.OleInitialize (0); + + /* Initialize buffered painting */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)){ + OS.BufferedPaintInit (); + } + + /* Initialize the Widget Table */ + indexTable = new int [GROW_SIZE]; + controlTable = new Control [GROW_SIZE]; + for (int i=0; i<GROW_SIZE-1; i++) indexTable [i] = i + 1; + indexTable [GROW_SIZE - 1] = -1; +} + +/** + * Invokes platform specific functionality to dispose a GC handle. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Display</code>. It is marked public only so that it + * can be shared within the packages provided by DWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + * + * @param hDC the platform specific GC handle + * @param data the platform specific GC data + */ +public void internal_dispose_GC (int hDC, GCData data) { + OS.ReleaseDC (0, hDC); +} + +bool isXMouseActive () { + /* + * NOTE: X-Mouse is active when bit 1 of the UserPreferencesMask is set. + */ + bool xMouseActive = false; + TCHAR key = new TCHAR (0, "Control Panel\\Desktop", true); //$NON-NLS-1$ + int [] phKey = new int [1]; + int result = OS.RegOpenKeyEx (OS.HKEY_CURRENT_USER, key, 0, OS.KEY_READ, phKey); + if (result is 0) { + TCHAR lpValueName = new TCHAR (0, "UserPreferencesMask", true); //$NON-NLS-1$ + int [] lpcbData = new int [] {4}, lpData = new int [1]; + result = OS.RegQueryValueEx (phKey [0], lpValueName, 0, null, lpData, lpcbData); + if (result is 0) xMouseActive = (lpData [0] & 0x01) !is 0; + OS.RegCloseKey (phKey [0]); + } + return xMouseActive; +} + +bool isValidThread () { + return thread is Thread.currentThread (); +} + +/** + * Maps a point from one coordinate system to another. + * When the control is null, coordinates are mapped to + * the display. + * <p> + * NOTE: On right-to-left platforms where the coordinate + * systems are mirrored, special care needs to be taken + * when mapping coordinates from one control to another + * to ensure the result is correctly mirrored. + * + * Mapping a point that is the origin of a rectangle and + * then adding the width and height is not equivalent to + * mapping the rectangle. When one control is mirrored + * and the other is not, adding the width and height to a + * point that was mapped causes the rectangle to extend + * in the wrong direction. Mapping the entire rectangle + * instead of just one point causes both the origin and + * the corner of the rectangle to be mapped. + * </p> + * + * @param from the source <code>Control</code> or <code>null</code> + * @param to the destination <code>Control</code> or <code>null</code> + * @param point to be mapped + * @return point with mapped coordinates + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 2.1.2 + */ +public Point map (Control from, Control to, Point point) { + checkDevice (); + if (point is null) error (DWT.ERROR_NULL_ARGUMENT); + return map (from, to, point.x, point.y); +} + +/** + * Maps a point from one coordinate system to another. + * When the control is null, coordinates are mapped to + * the display. + * <p> + * NOTE: On right-to-left platforms where the coordinate + * systems are mirrored, special care needs to be taken + * when mapping coordinates from one control to another + * to ensure the result is correctly mirrored. + * + * Mapping a point that is the origin of a rectangle and + * then adding the width and height is not equivalent to + * mapping the rectangle. When one control is mirrored + * and the other is not, adding the width and height to a + * point that was mapped causes the rectangle to extend + * in the wrong direction. Mapping the entire rectangle + * instead of just one point causes both the origin and + * the corner of the rectangle to be mapped. + * </p> + * + * @param from the source <code>Control</code> or <code>null</code> + * @param to the destination <code>Control</code> or <code>null</code> + * @param x coordinates to be mapped + * @param y coordinates to be mapped + * @return point with mapped coordinates + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 2.1.2 + */ +public Point map (Control from, Control to, int x, int y) { + checkDevice (); + if (from !is null && from.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + if (to !is null && to.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + if (from is to) return new Point (x, y); + int hwndFrom = from !is null ? from.handle : 0; + int hwndTo = to !is null ? to.handle : 0; + POINT point = new POINT (); + point.x = x; + point.y = y; + OS.MapWindowPoints (hwndFrom, hwndTo, point, 1); + return new Point (point.x, point.y); +} + +/** + * Maps a point from one coordinate system to another. + * When the control is null, coordinates are mapped to + * the display. + * <p> + * NOTE: On right-to-left platforms where the coordinate + * systems are mirrored, special care needs to be taken + * when mapping coordinates from one control to another + * to ensure the result is correctly mirrored. + * + * Mapping a point that is the origin of a rectangle and + * then adding the width and height is not equivalent to + * mapping the rectangle. When one control is mirrored + * and the other is not, adding the width and height to a + * point that was mapped causes the rectangle to extend + * in the wrong direction. Mapping the entire rectangle + * instead of just one point causes both the origin and + * the corner of the rectangle to be mapped. + * </p> + * + * @param from the source <code>Control</code> or <code>null</code> + * @param to the destination <code>Control</code> or <code>null</code> + * @param rectangle to be mapped + * @return rectangle with mapped coordinates + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 2.1.2 + */ +public Rectangle map (Control from, Control to, Rectangle rectangle) { + checkDevice (); + if (rectangle is null) error (DWT.ERROR_NULL_ARGUMENT); + return map (from, to, rectangle.x, rectangle.y, rectangle.width, rectangle.height); +} + +/** + * Maps a point from one coordinate system to another. + * When the control is null, coordinates are mapped to + * the display. + * <p> + * NOTE: On right-to-left platforms where the coordinate + * systems are mirrored, special care needs to be taken + * when mapping coordinates from one control to another + * to ensure the result is correctly mirrored. + * + * Mapping a point that is the origin of a rectangle and + * then adding the width and height is not equivalent to + * mapping the rectangle. When one control is mirrored + * and the other is not, adding the width and height to a + * point that was mapped causes the rectangle to extend + * in the wrong direction. Mapping the entire rectangle + * instead of just one point causes both the origin and + * the corner of the rectangle to be mapped. + * </p> + * + * @param from the source <code>Control</code> or <code>null</code> + * @param to the destination <code>Control</code> or <code>null</code> + * @param x coordinates to be mapped + * @param y coordinates to be mapped + * @param width coordinates to be mapped + * @param height coordinates to be mapped + * @return rectangle with mapped coordinates + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 2.1.2 + */ +public Rectangle map (Control from, Control to, int x, int y, int width, int height) { + checkDevice (); + if (from !is null && from.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + if (to !is null && to.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + if (from is to) return new Rectangle (x, y, width, height); + int hwndFrom = from !is null ? from.handle : 0; + int hwndTo = to !is null ? to.handle : 0; + RECT rect = new RECT (); + rect.left = x; + rect.top = y; + rect.right = x + width; + rect.bottom = y + height; + OS.MapWindowPoints (hwndFrom, hwndTo, rect, 2); + return new Rectangle (rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); +} + +/* + * Returns a single character, converted from the default + * multi-byte character set (MBCS) used by the operating + * system widgets to a wide character set (WCS) used by Java. + * + * @param ch the MBCS character + * @return the WCS character + */ +static char mbcsToWcs (int ch) { + return mbcsToWcs (ch, 0); +} + +/* + * Returns a single character, converted from the specified + * multi-byte character set (MBCS) used by the operating + * system widgets to a wide character set (WCS) used by Java. + * + * @param ch the MBCS character + * @param codePage the code page used to convert the character + * @return the WCS character + */ +static char mbcsToWcs (int ch, int codePage) { + if (OS.IsUnicode) return (char) ch; + int key = ch & 0xFFFF; + if (key <= 0x7F) return (char) ch; + byte [] buffer; + if (key <= 0xFF) { + buffer = new byte [1]; + buffer [0] = (byte) key; + } else { + buffer = new byte [2]; + buffer [0] = (byte) ((key >> 8) & 0xFF); + buffer [1] = (byte) (key & 0xFF); + } + char [] unicode = new char [1]; + int cp = codePage !is 0 ? codePage : OS.CP_ACP; + int count = OS.MultiByteToWideChar (cp, OS.MB_PRECOMPOSED, buffer, buffer.length, unicode, 1); + if (count is 0) return 0; + return unicode [0]; +} + +int messageProc (int hwnd, int msg, int wParam, int lParam) { + switch (msg) { + case SWT_RUNASYNC: { + if (runMessagesInIdle) runAsyncMessages (false); + break; + } + case SWT_KEYMSG: { + bool consumed = false; + MSG keyMsg = new MSG (); + OS.MoveMemory (keyMsg, lParam, MSG.sizeof); + Control control = findControl (keyMsg.hwnd); + if (control !is null) { + /* + * Feature in Windows. When the user types an accent key such + * as ^ in order to get an accented character on a German keyboard, + * calling TranslateMessage(), ToUnicode() or ToAscii() consumes + * the key. This means that a subsequent call to TranslateMessage() + * will see a regular key rather than the accented key. The fix + * is to use MapVirtualKey() and VkKeyScan () to detect an accent + * and avoid calls to TranslateMessage(). + */ + bool accentKey = false; + switch (keyMsg.message) { + case OS.WM_KEYDOWN: + case OS.WM_SYSKEYDOWN: { + if (!OS.IsWinCE) { + switch (keyMsg.wParam) { + case OS.VK_SHIFT: + case OS.VK_MENU: + case OS.VK_CONTROL: + case OS.VK_CAPITAL: + case OS.VK_NUMLOCK: + case OS.VK_SCROLL: + break; + default: { + /* + * Bug in Windows. The high bit in the result of MapVirtualKey() on + * Windows NT is bit 32 while the high bit on Windows 95 is bit 16. + * They should both be bit 32. The fix is to test the right bit. + */ + int mapKey = OS.MapVirtualKey (keyMsg.wParam, 2); + if (mapKey !is 0) { + accentKey = (mapKey & (OS.IsWinNT ? 0x80000000 : 0x8000)) !is 0; + if (!accentKey) { + for (int i=0; i<ACCENTS.length; i++) { + int value = OS.VkKeyScan (ACCENTS [i]); + if (value !is -1 && (value & 0xFF) is keyMsg.wParam) { + int state = value >> 8; + if ((OS.GetKeyState (OS.VK_SHIFT) < 0) is ((state & 0x1) !is 0) && + (OS.GetKeyState (OS.VK_CONTROL) < 0) is ((state & 0x2) !is 0) && + (OS.GetKeyState (OS.VK_MENU) < 0) is ((state & 0x4) !is 0)) { + if ((state & 0x7) !is 0) accentKey = true; + break; + } + } + } + } + } + break; + } + } + } + break; + } + } + if (!accentKey && !ignoreNextKey) { + keyMsg.hwnd = control.handle; + int flags = OS.PM_REMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; + do { + if (!(consumed |= filterMessage (keyMsg))) { + OS.TranslateMessage (keyMsg); + consumed |= OS.DispatchMessage (keyMsg) is 1; + } + } while (OS.PeekMessage (keyMsg, keyMsg.hwnd, OS.WM_KEYFIRST, OS.WM_KEYLAST, flags)); + } + switch (keyMsg.message) { + case OS.WM_KEYDOWN: + case OS.WM_SYSKEYDOWN: { + switch (keyMsg.wParam) { + case OS.VK_SHIFT: + case OS.VK_MENU: + case OS.VK_CONTROL: + case OS.VK_CAPITAL: + case OS.VK_NUMLOCK: + case OS.VK_SCROLL: + break; + default: { + ignoreNextKey = accentKey; + break; + } + } + } + } + } + if (consumed) { + int hHeap = OS.GetProcessHeap (); + OS.HeapFree (hHeap, 0, lParam); + } else { + OS.PostMessage (embeddedHwnd, SWT_KEYMSG, wParam, lParam); + } + return 0; + } + case SWT_TRAYICONMSG: { + if (tray !is null) { + TrayItem [] items = tray.items; + for (int i=0; i<items.length; i++) { + TrayItem item = items [i]; + if (item !is null && item.id is wParam) { + return item.messageProc (hwnd, msg, wParam, lParam); + } + } + } + return 0; + } + case OS.WM_ACTIVATEAPP: { + /* + * Feature in Windows. When multiple shells are + * disabled and one of the shells has an enabled + * dialog child and the user selects a disabled + * shell that does not have the enabled dialog + * child using the Task bar, Windows brings the + * disabled shell to the front. As soon as the + * user clicks on the disabled shell, the enabled + * dialog child comes to the front. This behavior + * is unspecified and seems strange. Normally, a + * disabled shell is frozen on the screen and the + * user cannot change the z-order by clicking with + * the mouse. The fix is to look for WM_ACTIVATEAPP + * and force the enabled dialog child to the front. + * This is typically what the user is expecting. + * + * NOTE: If the modal shell is disabled for any + * reason, it should not be brought to the front. + */ + if (wParam !is 0) { + if (!isXMouseActive ()) { + if (modalDialogShell !is null && modalDialogShell.isDisposed ()) modalDialogShell = null; + Shell modal = modalDialogShell !is null ? modalDialogShell : getModalShell (); + if (modal !is null) { + int hwndModal = modal.handle; + if (OS.IsWindowEnabled (hwndModal)) { + modal.bringToTop (); + if (modal.isDisposed ()) break; + } + int hwndPopup = OS.GetLastActivePopup (hwndModal); + if (hwndPopup !is 0 && hwndPopup !is modal.handle) { + if (getControl (hwndPopup) is null) { + if (OS.IsWindowEnabled (hwndPopup)) { + OS.SetActiveWindow (hwndPopup); + } + } + } + } + } + } + break; + } + case OS.WM_ENDSESSION: { + if (wParam !is 0) { + dispose (); + /* + * When the session is ending, no DWT program can continue + * to run. In order to avoid running code after the display + * has been disposed, exit from Java. + */ + System.exit (0); + } + break; + } + case OS.WM_QUERYENDSESSION: { + Event event = new Event (); + sendEvent (DWT.Close, event); + if (!event.doit) return 0; + break; + } + case OS.WM_SETTINGCHANGE: { + switch (wParam) { + case 0: + case 1: + case OS.SPI_SETHIGHCONTRAST: + OS.SetTimer (hwndMessage, SETTINGS_ID, SETTINGS_DELAY, 0); + } + break; + } + case OS.WM_THEMECHANGED: { + if (OS.COMCTL32_MAJOR >= 6) { + if (hButtonTheme !is 0) OS.CloseThemeData (hButtonTheme); + if (hEditTheme !is 0) OS.CloseThemeData (hEditTheme); + if (hExplorerBarTheme !is 0) OS.CloseThemeData (hExplorerBarTheme); + if (hScrollBarTheme !is 0) OS.CloseThemeData (hScrollBarTheme); + if (hTabTheme !is 0) OS.CloseThemeData (hTabTheme); + hButtonTheme = hEditTheme = hExplorerBarTheme = hScrollBarTheme = hTabTheme = 0; + } + break; + } + case OS.WM_TIMER: { + if (wParam is SETTINGS_ID) { + OS.KillTimer (hwndMessage, SETTINGS_ID); + runSettings (); + } else { + runTimer (wParam); + } + break; + } + default: { + if (msg is SWT_TASKBARCREATED) { + if (tray !is null) { + TrayItem [] items = tray.items; + for (int i=0; i<items.length; i++) { + TrayItem item = items [i]; + if (item !is null) item.recreate (); + } + } + } + } + } + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +int monitorEnumProc (int hmonitor, int hdc, int lprcMonitor, int dwData) { + if (monitorCount >= monitors.length) { + Monitor[] newMonitors = new Monitor [monitors.length + 4]; + System.arraycopy (monitors, 0, newMonitors, 0, monitors.length); + monitors = newMonitors; + } + MONITORINFO lpmi = new MONITORINFO (); + lpmi.cbSize = MONITORINFO.sizeof; + OS.GetMonitorInfo (hmonitor, lpmi); + Monitor monitor = new Monitor (); + monitor.handle = hmonitor; + monitor.x = lpmi.rcMonitor_left; + monitor.y = lpmi.rcMonitor_top; + monitor.width = lpmi.rcMonitor_right - lpmi.rcMonitor_left; + monitor.height = lpmi.rcMonitor_bottom - lpmi.rcMonitor_top; + monitor.clientX = lpmi.rcWork_left; + monitor.clientY = lpmi.rcWork_top; + monitor.clientWidth = lpmi.rcWork_right - lpmi.rcWork_left; + monitor.clientHeight = lpmi.rcWork_bottom - lpmi.rcWork_top; + monitors [monitorCount++] = monitor; + return 1; +} + +int msgFilterProc (int code, int wParam, int lParam) { + switch (code) { + case OS.MSGF_COMMCTRL_BEGINDRAG: { + if (!runDragDrop) { + OS.MoveMemory (hookMsg, lParam, MSG.sizeof); + if (hookMsg.message is OS.WM_MOUSEMOVE) { + OS.SendMessage (hookMsg.hwnd, OS.WM_CANCELMODE, 0, 0); + } + } + break; + } + /* + * Feature in Windows. For some reason, when the user clicks + * a table or tree, the Windows hook WH_MSGFILTER is sent when + * an input event from a dialog box, message box, menu, or scroll + * bar did not occur, causing async messages to run at the wrong + * time. The fix is to check the message filter code. + */ + case OS.MSGF_DIALOGBOX: + case OS.MSGF_MAINLOOP: + case OS.MSGF_MENU: + case OS.MSGF_MOVE: + case OS.MSGF_MESSAGEBOX: + case OS.MSGF_NEXTWINDOW: + case OS.MSGF_SCROLLBAR: + case OS.MSGF_SIZE: { + if (runMessages) { + OS.MoveMemory (hookMsg, lParam, MSG.sizeof); + if (hookMsg.message is OS.WM_NULL) { + MSG msg = new MSG (); + int flags = OS.PM_NOREMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; + if (!OS.PeekMessage (msg, 0, 0, 0, flags)) { + if (runAsyncMessages (false)) wakeThread (); + } + } + } + break; + } + } + return OS.CallNextHookEx (filterHook, code, wParam, lParam); +} + +int numpadKey (int key) { + switch (key) { + case OS.VK_NUMPAD0: return '0'; + case OS.VK_NUMPAD1: return '1'; + case OS.VK_NUMPAD2: return '2'; + case OS.VK_NUMPAD3: return '3'; + case OS.VK_NUMPAD4: return '4'; + case OS.VK_NUMPAD5: return '5'; + case OS.VK_NUMPAD6: return '6'; + case OS.VK_NUMPAD7: return '7'; + case OS.VK_NUMPAD8: return '8'; + case OS.VK_NUMPAD9: return '9'; + case OS.VK_MULTIPLY: return '*'; + case OS.VK_ADD: return '+'; + case OS.VK_SEPARATOR: return '\0'; + case OS.VK_SUBTRACT: return '-'; + case OS.VK_DECIMAL: return '.'; + case OS.VK_DIVIDE: return '/'; + } + return 0; +} + +/** + * Generate a low level system event. + * + * <code>post</code> is used to generate low level keyboard + * and mouse events. The intent is to enable automated UI + * testing by simulating the input from the user. Most + * DWT applications should never need to call this method. + * <p> + * Note that this operation can fail when the operating system + * fails to generate the event for any reason. For example, + * this can happen when there is no such key or mouse button + * or when the system event queue is full. + * </p> + * <p> + * <b>Event Types:</b> + * <p>KeyDown, KeyUp + * <p>The following fields in the <code>Event</code> apply: + * <ul> + * <li>(in) type KeyDown or KeyUp</li> + * <p> Either one of: + * <li>(in) character a character that corresponds to a keyboard key</li> + * <li>(in) keyCode the key code of the key that was typed, + * as defined by the key code constants in class <code>DWT</code></li> + * </ul> + * <p>MouseDown, MouseUp</p> + * <p>The following fields in the <code>Event</code> apply: + * <ul> + * <li>(in) type MouseDown or MouseUp + * <li>(in) button the button that is pressed or released + * </ul> + * <p>MouseMove</p> + * <p>The following fields in the <code>Event</code> apply: + * <ul> + * <li>(in) type MouseMove + * <li>(in) x the x coordinate to move the mouse pointer to in screen coordinates + * <li>(in) y the y coordinate to move the mouse pointer to in screen coordinates + * </ul> + * </dl> + * + * @param event the event to be generated + * + * @return true if the event was generated or false otherwise + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the event is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 3.0 + * + */ +public bool post (Event event) { + if (isDisposed ()) error (DWT.ERROR_DEVICE_DISPOSED); + if (event is null) error (DWT.ERROR_NULL_ARGUMENT); + int type = event.type; + switch (type){ + case DWT.KeyDown: + case DWT.KeyUp: { + KEYBDINPUT inputs = new KEYBDINPUT (); + inputs.wVk = (short) untranslateKey (event.keyCode); + if (inputs.wVk is 0) { + char key = event.character; + switch (key) { + case DWT.BS: inputs.wVk = (short) OS.VK_BACK; break; + case DWT.CR: inputs.wVk = (short) OS.VK_RETURN; break; + case DWT.DEL: inputs.wVk = (short) OS.VK_DELETE; break; + case DWT.ESC: inputs.wVk = (short) OS.VK_ESCAPE; break; + case DWT.TAB: inputs.wVk = (short) OS.VK_TAB; break; + /* + * Since there is no LF key on the keyboard, do not attempt + * to map LF to CR or attempt to post an LF key. + */ +// case DWT.LF: inputs.wVk = (short) OS.VK_RETURN; break; + case DWT.LF: return false; + default: { + if (OS.IsWinCE) { + inputs.wVk = OS.CharUpper ((short) key); + } else { + inputs.wVk = OS.VkKeyScan ((short) wcsToMbcs (key, 0)); + if (inputs.wVk is -1) return false; + inputs.wVk &= 0xFF; + } + } + } + } + inputs.dwFlags = type is DWT.KeyUp ? OS.KEYEVENTF_KEYUP : 0; + int hHeap = OS.GetProcessHeap (); + int pInputs = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, INPUT.sizeof); + OS.MoveMemory(pInputs, new int[] {OS.INPUT_KEYBOARD}, 4); + OS.MoveMemory (pInputs + 4, inputs, KEYBDINPUT.sizeof); + bool result = OS.SendInput (1, pInputs, INPUT.sizeof) !is 0; + OS.HeapFree (hHeap, 0, pInputs); + return result; + } + case DWT.MouseDown: + case DWT.MouseMove: + case DWT.MouseUp: + case DWT.MouseWheel: { + MOUSEINPUT inputs = new MOUSEINPUT (); + if (type is DWT.MouseMove){ + inputs.dwFlags = OS.MOUSEEVENTF_MOVE | OS.MOUSEEVENTF_ABSOLUTE; + int x= 0, y = 0, width = 0, height = 0; + if (OS.WIN32_VERSION >= OS.VERSION (5, 0)) { + inputs.dwFlags |= OS.MOUSEEVENTF_VIRTUALDESK; + x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN); + y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN); + width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN); + height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN); + } else { + width = OS.GetSystemMetrics (OS.SM_CXSCREEN); + height = OS.GetSystemMetrics (OS.SM_CYSCREEN); + } + inputs.dx = ((event.x - x) * 65535 + width - 2) / (width - 1); + inputs.dy = ((event.y - y) * 65535 + height - 2) / (height - 1); + } else { + if (type is DWT.MouseWheel) { + if (OS.WIN32_VERSION < OS.VERSION (5, 0)) return false; + inputs.dwFlags = OS.MOUSEEVENTF_WHEEL; + switch (event.detail) { + case DWT.SCROLL_PAGE: + inputs.mouseData = event.count * OS.WHEEL_DELTA; + break; + case DWT.SCROLL_LINE: + int [] value = new int [1]; + OS.SystemParametersInfo (OS.SPI_GETWHEELSCROLLLINES, 0, value, 0); + inputs.mouseData = event.count * OS.WHEEL_DELTA / value [0]; + break; + default: return false; + } + } else { + switch (event.button) { + case 1: inputs.dwFlags = type is DWT.MouseDown ? OS.MOUSEEVENTF_LEFTDOWN : OS.MOUSEEVENTF_LEFTUP; break; + case 2: inputs.dwFlags = type is DWT.MouseDown ? OS.MOUSEEVENTF_MIDDLEDOWN : OS.MOUSEEVENTF_MIDDLEUP; break; + case 3: inputs.dwFlags = type is DWT.MouseDown ? OS.MOUSEEVENTF_RIGHTDOWN : OS.MOUSEEVENTF_RIGHTUP; break; + case 4: { + if (OS.WIN32_VERSION < OS.VERSION (5, 0)) return false; + inputs.dwFlags = type is DWT.MouseDown ? OS.MOUSEEVENTF_XDOWN : OS.MOUSEEVENTF_XUP; + inputs.mouseData = OS.XBUTTON1; + break; + } + case 5: { + if (OS.WIN32_VERSION < OS.VERSION (5, 0)) return false; + inputs.dwFlags = type is DWT.MouseDown ? OS.MOUSEEVENTF_XDOWN : OS.MOUSEEVENTF_XUP; + inputs.mouseData = OS.XBUTTON2; + break; + } + default: return false; + } + } + } + int hHeap = OS.GetProcessHeap (); + int pInputs = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, INPUT.sizeof); + OS.MoveMemory(pInputs, new int[] {OS.INPUT_MOUSE}, 4); + OS.MoveMemory (pInputs + 4, inputs, MOUSEINPUT.sizeof); + bool result = OS.SendInput (1, pInputs, INPUT.sizeof) !is 0; + OS.HeapFree (hHeap, 0, pInputs); + return result; + } + } + return false; +} + +void postEvent (Event event) { + /* + * Place the event at the end of the event queue. + * This code is always called in the Display's + * thread so it must be re-enterant but does not + * need to be synchronized. + */ + if (eventQueue is null) eventQueue = new Event [4]; + int index = 0; + int length = eventQueue.length; + while (index < length) { + if (eventQueue [index] is null) break; + index++; + } + if (index is length) { + Event [] newQueue = new Event [length + 4]; + System.arraycopy (eventQueue, 0, newQueue, 0, length); + eventQueue = newQueue; + } + eventQueue [index] = event; +} + +/** + * Reads an event from the operating system's event queue, + * dispatches it appropriately, and returns <code>true</code> + * if there is potentially more work to do, or <code>false</code> + * if the caller can sleep until another event is placed on + * the event queue. + * <p> + * In addition to checking the system event queue, this method also + * checks if any inter-thread messages (created by <code>syncExec()</code> + * or <code>asyncExec()</code>) are waiting to be processed, and if + * so handles them before returning. + * </p> + * + * @return <code>false</code> if the caller can sleep upon return from this method + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li> + * </ul> + * + * @see #sleep + * @see #wake + */ +public bool readAndDispatch () { + checkDevice (); + lpStartupInfo = null; + drawMenuBars (); + runPopups (); + if (OS.PeekMessage (msg, 0, 0, 0, OS.PM_REMOVE)) { + if (!filterMessage (msg)) { + OS.TranslateMessage (msg); + OS.DispatchMessage (msg); + } + runDeferredEvents (); + return true; + } + return runMessages && runAsyncMessages (false); +} + +static synchronized void register (Display display) { + for (int i=0; i<Displays.length; i++) { + if (Displays [i] is null) { + Displays [i] = display; + return; + } + } + Display [] newDisplays = new Display [Displays.length + 4]; + System.arraycopy (Displays, 0, newDisplays, 0, Displays.length); + newDisplays [Displays.length] = display; + Displays = newDisplays; +} + +/** + * Releases any internal resources back to the operating + * system and clears all fields except the device handle. + * <p> + * Disposes all shells which are currently open on the display. + * After this method has been invoked, all related related shells + * will answer <code>true</code> when sent the message + * <code>isDisposed()</code>. + * </p><p> + * When a device is destroyed, resources that were acquired + * on behalf of the programmer need to be returned to the + * operating system. For example, if the device allocated a + * font to be used as the system font, this font would be + * freed in <code>release</code>. Also,to assist the garbage + * collector and minimize the amount of memory that is not + * reclaimed when the programmer keeps a reference to a + * disposed device, all fields except the handle are zero'd. + * The handle is needed by <code>destroy</code>. + * </p> + * This method is called before <code>destroy</code>. + * + * @see Device#dispose + * @see #destroy + */ +protected void release () { + sendEvent (DWT.Dispose, new Event ()); + Shell [] shells = getShells (); + for (int i=0; i<shells.length; i++) { + Shell shell = shells [i]; + if (!shell.isDisposed ()) shell.dispose (); + } + if (tray !is null) tray.dispose (); + tray = null; + while (readAndDispatch ()) {} + if (disposeList !is null) { + for (int i=0; i<disposeList.length; i++) { + if (disposeList [i] !is null) disposeList [i].run (); + } + } + disposeList = null; + synchronizer.releaseSynchronizer (); + synchronizer = null; + releaseDisplay (); + super.release (); +} + +void releaseDisplay () { + if (embeddedHwnd !is 0) { + OS.PostMessage (embeddedHwnd, SWT_DESTROY, 0, 0); + } + + /* Release XP Themes */ + if (OS.COMCTL32_MAJOR >= 6) { + if (hButtonTheme !is 0) OS.CloseThemeData (hButtonTheme); + if (hEditTheme !is 0) OS.CloseThemeData (hEditTheme); + if (hExplorerBarTheme !is 0) OS.CloseThemeData (hExplorerBarTheme); + if (hScrollBarTheme !is 0) OS.CloseThemeData (hScrollBarTheme); + if (hTabTheme !is 0) OS.CloseThemeData (hTabTheme); + hButtonTheme = hEditTheme = hExplorerBarTheme = hScrollBarTheme = hTabTheme = 0; + } + + /* Unhook the message hook */ + if (!OS.IsWinCE) { + if (msgHook !is 0) OS.UnhookWindowsHookEx (msgHook); + msgHook = 0; + } + + /* Unhook the filter hook */ + if (!OS.IsWinCE) { + if (filterHook !is 0) OS.UnhookWindowsHookEx (filterHook); + filterHook = 0; + msgFilterCallback.dispose (); + msgFilterCallback = null; + msgFilterProc = 0; + } + + /* Unhook the idle hook */ + if (!OS.IsWinCE) { + if (idleHook !is 0) OS.UnhookWindowsHookEx (idleHook); + idleHook = 0; + foregroundIdleCallback.dispose (); + foregroundIdleCallback = null; + foregroundIdleProc = 0; + } + + /* Destroy the message only HWND */ + if (hwndMessage !is 0) OS.DestroyWindow (hwndMessage); + hwndMessage = 0; + messageCallback.dispose (); + messageCallback = null; + messageProc = 0; + + /* Unregister the DWT window class */ + int hHeap = OS.GetProcessHeap (); + int hInstance = OS.GetModuleHandle (null); + OS.UnregisterClass (windowClass, hInstance); + + /* Unregister the DWT drop shadow window class */ + OS.UnregisterClass (windowShadowClass, hInstance); + windowClass = windowShadowClass = null; + windowCallback.dispose (); + windowCallback = null; + windowProc = 0; + + /* Release the System fonts */ + if (systemFont !is null) systemFont.dispose (); + systemFont = null; + lfSystemFont = null; + + /* Release the System Images */ + if (errorImage !is null) errorImage.dispose (); + if (infoImage !is null) infoImage.dispose (); + if (questionImage !is null) questionImage.dispose (); + if (warningIcon !is null) warningIcon.dispose (); + errorImage = infoImage = questionImage = warningIcon = null; + + /* Release Sort Indicators */ + if (upArrow !is null) upArrow.dispose (); + if (downArrow !is null) downArrow.dispose (); + upArrow = downArrow = null; + + /* Release the System Cursors */ + for (int i = 0; i < cursors.length; i++) { + if (cursors [i] !is null) cursors [i].dispose (); + } + cursors = null; + + /* Release Acquired Resources */ + if (resources !is null) { + for (int i=0; i<resources.length; i++) { + if (resources [i] !is null) resources [i].dispose (); + } + resources = null; + } + + /* Release Custom Colors for ChooseColor */ + if (lpCustColors !is 0) OS.HeapFree (hHeap, 0, lpCustColors); + lpCustColors = 0; + + /* Uninitialize OLE */ + if (!OS.IsWinCE) OS.OleUninitialize (); + + /* Uninitialize buffered painting */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + OS.BufferedPaintUnInit (); + } + + /* Release references */ + thread = null; + msg = null; + keyboard = null; + modalDialogShell = null; + modalShells = null; + data = null; + keys = null; + values = null; + bars = popups = null; + indexTable = null; + controlTable = null; + lastControl = lastGetControl = lastHittestControl = null; + imageList = toolImageList = toolHotImageList = toolDisabledImageList = null; +} + +void releaseImageList (ImageList list) { + int i = 0; + int length = imageList.length; + while (i < length) { + if (imageList [i] is list) { + if (list.removeRef () > 0) return; + list.dispose (); + System.arraycopy (imageList, i + 1, imageList, i, --length - i); + imageList [length] = null; + for (int j=0; j<length; j++) { + if (imageList [j] !is null) return; + } + imageList = null; + return; + } + i++; + } +} + +void releaseToolImageList (ImageList list) { + int i = 0; + int length = toolImageList.length; + while (i < length) { + if (toolImageList [i] is list) { + if (list.removeRef () > 0) return; + list.dispose (); + System.arraycopy (toolImageList, i + 1, toolImageList, i, --length - i); + toolImageList [length] = null; + for (int j=0; j<length; j++) { + if (toolImageList [j] !is null) return; + } + toolImageList = null; + return; + } + i++; + } +} + +void releaseToolHotImageList (ImageList list) { + int i = 0; + int length = toolHotImageList.length; + while (i < length) { + if (toolHotImageList [i] is list) { + if (list.removeRef () > 0) return; + list.dispose (); + System.arraycopy (toolHotImageList, i + 1, toolHotImageList, i, --length - i); + toolHotImageList [length] = null; + for (int j=0; j<length; j++) { + if (toolHotImageList [j] !is null) return; + } + toolHotImageList = null; + return; + } + i++; + } +} + +void releaseToolDisabledImageList (ImageList list) { + int i = 0; + int length = toolDisabledImageList.length; + while (i < length) { + if (toolDisabledImageList [i] is list) { + if (list.removeRef () > 0) return; + list.dispose (); + System.arraycopy (toolDisabledImageList, i + 1, toolDisabledImageList, i, --length - i); + toolDisabledImageList [length] = null; + for (int j=0; j<length; j++) { + if (toolDisabledImageList [j] !is null) return; + } + toolDisabledImageList = null; + return; + } + i++; + } +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when an event of the given type occurs anywhere in + * a widget. The event type is one of the event constants defined + * in class <code>DWT</code>. + * + * @param eventType the type of event to listen for + * @param listener the listener which should no longer be notified when the event occurs + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Listener + * @see DWT + * @see #addFilter + * @see #addListener + * + * @since 3.0 + */ +public void removeFilter (int eventType, Listener listener) { + checkDevice (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (filterTable is null) return; + filterTable.unhook (eventType, listener); + if (filterTable.size () is 0) filterTable = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when an event of the given type occurs. The event type + * is one of the event constants defined in class <code>DWT</code>. + * + * @param eventType the type of event to listen for + * @param listener the listener which should no longer be notified when the event occurs + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see Listener + * @see DWT + * @see #addListener + * + * @since 2.0 + */ +public void removeListener (int eventType, Listener listener) { + checkDevice (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (eventType, listener); +} + +void removeBar (Menu menu) { + if (bars is null) return; + for (int i=0; i<bars.length; i++) { + if (bars [i] is menu) { + bars [i] = null; + return; + } + } +} + +Control removeControl (int handle) { + if (handle is 0) return null; + lastControl = lastGetControl = null; + Control control = null; + int index; + if (USE_PROPERTY) { + index = OS.RemoveProp (handle, SWT_OBJECT_INDEX) - 1; + } else { + index = OS.GetWindowLong (handle, OS.GWL_USERDATA) - 1; + } + if (0 <= index && index < controlTable.length) { + control = controlTable [index]; + controlTable [index] = null; + indexTable [index] = freeSlot; + freeSlot = index; + if (!USE_PROPERTY) { + OS.SetWindowLong (handle, OS.GWL_USERDATA, 0); + } + } + return control; +} + +void removeMenuItem (MenuItem item) { + if (items is null) return; + items [item.id - ID_START] = null; +} + +void removePopup (Menu menu) { + if (popups is null) return; + for (int i=0; i<popups.length; i++) { + if (popups [i] is menu) { + popups [i] = null; + return; + } + } +} + +bool runAsyncMessages (bool all) { + return synchronizer.runAsyncMessages (all); +} + +bool runDeferredEvents () { + /* + * Run deferred events. This code is always + * called in the Display's thread so it must + * be re-enterant but need not be synchronized. + */ + while (eventQueue !is null) { + + /* Take an event off the queue */ + Event event = eventQueue [0]; + if (event is null) break; + int length = eventQueue.length; + System.arraycopy (eventQueue, 1, eventQueue, 0, --length); + eventQueue [length] = null; + + /* Run the event */ + Widget widget = event.widget; + if (widget !is null && !widget.isDisposed ()) { + Widget item = event.item; + if (item is null || !item.isDisposed ()) { + widget.sendEvent (event); + } + } + + /* + * At this point, the event queue could + * be null due to a recursive invocation + * when running the event. + */ + } + + /* Clear the queue */ + eventQueue = null; + return true; +} + +bool runPopups () { + if (popups is null) return false; + bool result = false; + while (popups !is null) { + Menu menu = popups [0]; + if (menu is null) break; + int length = popups.length; + System.arraycopy (popups, 1, popups, 0, --length); + popups [length] = null; + runDeferredEvents (); + if (!menu.isDisposed ()) menu._setVisible (true); + result = true; + } + popups = null; + return result; +} + +void runSettings () { + Font oldFont = getSystemFont (); + saveResources (); + updateImages (); + sendEvent (DWT.Settings, null); + Font newFont = getSystemFont (); + bool sameFont = oldFont.equals (newFont); + Shell [] shells = getShells (); + for (int i=0; i<shells.length; i++) { + Shell shell = shells [i]; + if (!shell.isDisposed ()) { + if (!sameFont) { + shell.updateFont (oldFont, newFont); + } + /* This code is intentionally commented */ + //shell.redraw (true); + shell.layout (true, true); + } + } +} + +bool runTimer (int id) { + if (timerList !is null && timerIds !is null) { + int index = 0; + while (index <timerIds.length) { + if (timerIds [index] is id) { + OS.KillTimer (hwndMessage, timerIds [index]); + timerIds [index] = 0; + Runnable runnable = timerList [index]; + timerList [index] = null; + if (runnable !is null) runnable.run (); + return true; + } + index++; + } + } + return false; +} + +void saveResources () { + int resourceCount = 0; + if (resources is null) { + resources = new Resource [RESOURCE_SIZE]; + } else { + resourceCount = resources.length; + Resource [] newResources = new Resource [resourceCount + RESOURCE_SIZE]; + System.arraycopy (resources, 0, newResources, 0, resourceCount); + resources = newResources; + } + if (systemFont !is null) { + if (!OS.IsWinCE) { + NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); + info.cbSize = NONCLIENTMETRICS.sizeof; + if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { + LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfMessageFont : ((NONCLIENTMETRICSA)info).lfMessageFont; + if (lfSystemFont is null || + logFont.lfCharSet !is lfSystemFont.lfCharSet || + logFont.lfHeight !is lfSystemFont.lfHeight || + logFont.lfWidth !is lfSystemFont.lfWidth || + logFont.lfEscapement !is lfSystemFont.lfEscapement || + logFont.lfOrientation !is lfSystemFont.lfOrientation || + logFont.lfWeight !is lfSystemFont.lfWeight || + logFont.lfItalic !is lfSystemFont.lfItalic || + logFont.lfUnderline !is lfSystemFont.lfUnderline || + logFont.lfStrikeOut !is lfSystemFont.lfStrikeOut || + logFont.lfCharSet !is lfSystemFont.lfCharSet || + logFont.lfOutPrecision !is lfSystemFont.lfOutPrecision || + logFont.lfClipPrecision !is lfSystemFont.lfClipPrecision || + logFont.lfQuality !is lfSystemFont.lfQuality || + logFont.lfPitchAndFamily !is lfSystemFont.lfPitchAndFamily || + !getFontName (logFont).equals (getFontName (lfSystemFont))) { + resources [resourceCount++] = systemFont; + lfSystemFont = logFont; + systemFont = null; + } + } + } + } + if (errorImage !is null) resources [resourceCount++] = errorImage; + if (infoImage !is null) resources [resourceCount++] = infoImage; + if (questionImage !is null) resources [resourceCount++] = questionImage; + if (warningIcon !is null) resources [resourceCount++] = warningIcon; + errorImage = infoImage = questionImage = warningIcon = null; + for (int i=0; i<cursors.length; i++) { + if (cursors [i] !is null) resources [resourceCount++] = cursors [i]; + cursors [i] = null; + } + if (resourceCount < RESOURCE_SIZE) { + Resource [] newResources = new Resource [resourceCount]; + System.arraycopy (resources, 0, newResources, 0, resourceCount); + resources = newResources; + } +} + +void sendEvent (int eventType, Event event) { + if (eventTable is null && filterTable is null) { + return; + } + if (event is null) event = new Event (); + event.display = this; + event.type = eventType; + if (event.time is 0) event.time = getLastEventTime (); + if (!filterEvent (event)) { + if (eventTable !is null) eventTable.sendEvent (event); + } +} + +/** + * Sets the location of the on-screen pointer relative to the top left corner + * of the screen. <b>Note: It is typically considered bad practice for a + * program to move the on-screen pointer location.</b> + * + * @param x the new x coordinate for the cursor + * @param y the new y coordinate for the cursor + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 2.1 + */ +public void setCursorLocation (int x, int y) { + checkDevice (); + OS.SetCursorPos (x, y); +} + +/** + * Sets the location of the on-screen pointer relative to the top left corner + * of the screen. <b>Note: It is typically considered bad practice for a + * program to move the on-screen pointer location.</b> + * + * @param point new position + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_NULL_ARGUMENT - if the point is null + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @since 2.0 + */ +public void setCursorLocation (Point point) { + checkDevice (); + if (point is null) error (DWT.ERROR_NULL_ARGUMENT); + setCursorLocation (point.x, point.y); +} + +/** + * Sets the application defined property of the receiver + * with the specified name to the given argument. + * <p> + * Applications may have associated arbitrary objects with the + * receiver in this fashion. If the objects stored in the + * properties need to be notified when the display is disposed + * of, it is the application's responsibility provide a + * <code>disposeExec()</code> handler which does so. + * </p> + * + * @param key the name of the property + * @param value the new value for the property + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the key is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #getData(String) + * @see #disposeExec(Runnable) + */ +public void setData (String key, Object value) { + checkDevice (); + if (key is null) error (DWT.ERROR_NULL_ARGUMENT); + + if (key.equals (RUN_MESSAGES_IN_IDLE_KEY)) { + bool data = (bool) value; + runMessagesInIdle = data !is null && data.booleanValue (); + return; + } + + /* Remove the key/value pair */ + if (value is null) { + if (keys is null) return; + int index = 0; + while (index < keys.length && !keys [index].equals (key)) index++; + if (index is keys.length) return; + if (keys.length is 1) { + keys = null; + values = null; + } else { + String [] newKeys = new String [keys.length - 1]; + Object [] newValues = new Object [values.length - 1]; + System.arraycopy (keys, 0, newKeys, 0, index); + System.arraycopy (keys, index + 1, newKeys, index, newKeys.length - index); + System.arraycopy (values, 0, newValues, 0, index); + System.arraycopy (values, index + 1, newValues, index, newValues.length - index); + keys = newKeys; + values = newValues; + } + return; + } + + /* Add the key/value pair */ + if (keys is null) { + keys = new String [] {key}; + values = new Object [] {value}; + return; + } + for (int i=0; i<keys.length; i++) { + if (keys [i].equals (key)) { + values [i] = value; + return; + } + } + String [] newKeys = new String [keys.length + 1]; + Object [] newValues = new Object [values.length + 1]; + System.arraycopy (keys, 0, newKeys, 0, keys.length); + System.arraycopy (values, 0, newValues, 0, values.length); + newKeys [keys.length] = key; + newValues [values.length] = value; + keys = newKeys; + values = newValues; +} + +/** + * Sets the application defined, display specific data + * associated with the receiver, to the argument. + * The <em>display specific data</em> is a single, + * unnamed field that is stored with every display. + * <p> + * Applications may put arbitrary objects in this field. If + * the object stored in the display specific data needs to + * be notified when the display is disposed of, it is the + * application's responsibility provide a + * <code>disposeExec()</code> handler which does so. + * </p> + * + * @param data the new display specific data + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #getData() + * @see #disposeExec(Runnable) + */ +public void setData (Object data) { + checkDevice (); + this.data = data; +} + +/** + * On platforms which support it, sets the application name + * to be the argument. On Motif, for example, this can be used + * to set the name used for resource lookup. Specifying + * <code>null</code> for the name clears it. + * + * @param name the new app name or <code>null</code> + */ +public static void setAppName (String name) { + /* Do nothing */ +} + +void setModalDialogShell (Shell modalDailog) { + if (modalDialogShell !is null && modalDialogShell.isDisposed ()) modalDialogShell = null; + this.modalDialogShell = modalDailog; + Shell [] shells = getShells (); + for (int i=0; i<shells.length; i++) shells [i].updateModal (); +} + +void setModalShell (Shell shell) { + if (modalShells is null) modalShells = new Shell [4]; + int index = 0, length = modalShells.length; + while (index < length) { + if (modalShells [index] is shell) return; + if (modalShells [index] is null) break; + index++; + } + if (index is length) { + Shell [] newModalShells = new Shell [length + 4]; + System.arraycopy (modalShells, 0, newModalShells, 0, length); + modalShells = newModalShells; + } + modalShells [index] = shell; + Shell [] shells = getShells (); + for (int i=0; i<shells.length; i++) shells [i].updateModal (); +} + +/** + * Sets the synchronizer used by the display to be + * the argument, which can not be null. + * + * @param synchronizer the new synchronizer for the display (must not be null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the synchronizer is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li> + * </ul> + */ +public void setSynchronizer (Synchronizer synchronizer) { + checkDevice (); + if (synchronizer is null) error (DWT.ERROR_NULL_ARGUMENT); + if (this.synchronizer !is null) { + this.synchronizer.runAsyncMessages(true); + } + this.synchronizer = synchronizer; +} + +int shiftedKey (int key) { + if (OS.IsWinCE) return 0; + + /* Clear the virtual keyboard and press the shift key */ + for (int i=0; i<keyboard.length; i++) keyboard [i] = 0; + keyboard [OS.VK_SHIFT] |= 0x80; + + /* Translate the key to ASCII or UNICODE using the virtual keyboard */ + if (OS.IsUnicode) { + char [] result = new char [1]; + if (OS.ToUnicode (key, key, keyboard, result, 1, 0) is 1) return result [0]; + } else { + short [] result = new short [1]; + if (OS.ToAscii (key, key, keyboard, result, 0) is 1) return result [0]; + } + return 0; +} + +/** + * Causes the user-interface thread to <em>sleep</em> (that is, + * to be put in a state where it does not consume CPU cycles) + * until an event is received or it is otherwise awakened. + * + * @return <code>true</code> if an event requiring dispatching was placed on the queue. + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #wake + */ +public bool sleep () { + checkDevice (); + if (runMessages && getMessageCount () !is 0) return true; + if (OS.IsWinCE) { + OS.MsgWaitForMultipleObjectsEx (0, 0, OS.INFINITE, OS.QS_ALLINPUT, OS.MWMO_INPUTAVAILABLE); + return true; + } + return OS.WaitMessage (); +} + +/** + * Causes the <code>run()</code> method of the runnable to + * be invoked by the user-interface thread at the next + * reasonable opportunity. The thread which calls this method + * is suspended until the runnable completes. Specifying <code>null</code> + * as the runnable simply wakes the user-interface thread. + * <p> + * Note that at the time the runnable is invoked, widgets + * that have the receiver as their display may have been + * disposed. Therefore, it is necessary to check for this + * case inside the runnable before accessing the widget. + * </p> + * + * @param runnable code to run on the user-interface thread or <code>null</code> + * + * @exception DWTException <ul> + * <li>ERROR_FAILED_EXEC - if an exception occurred when executing the runnable</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #asyncExec + */ +public void syncExec (Runnable runnable) { + if (isDisposed ()) error (DWT.ERROR_DEVICE_DISPOSED); + synchronizer.syncExec (runnable); +} + +/** + * Causes the <code>run()</code> method of the runnable to + * be invoked by the user-interface thread after the specified + * number of milliseconds have elapsed. If milliseconds is less + * than zero, the runnable is not executed. + * <p> + * Note that at the time the runnable is invoked, widgets + * that have the receiver as their display may have been + * disposed. Therefore, it is necessary to check for this + * case inside the runnable before accessing the widget. + * </p> + * + * @param milliseconds the delay before running the runnable + * @param runnable code to run on the user-interface thread + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the runnable is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #asyncExec + */ +public void timerExec (int milliseconds, Runnable runnable) { + checkDevice (); + if (runnable is null) error (DWT.ERROR_NULL_ARGUMENT); + if (timerList is null) timerList = new Runnable [4]; + if (timerIds is null) timerIds = new int [4]; + int index = 0; + while (index < timerList.length) { + if (timerList [index] is runnable) break; + index++; + } + int timerId = 0; + if (index !is timerList.length) { + timerId = timerIds [index]; + if (milliseconds < 0) { + OS.KillTimer (hwndMessage, timerId); + timerList [index] = null; + timerIds [index] = 0; + return; + } + } else { + if (milliseconds < 0) return; + index = 0; + while (index < timerList.length) { + if (timerList [index] is null) break; + index++; + } + timerId = nextTimerId++; + if (index is timerList.length) { + Runnable [] newTimerList = new Runnable [timerList.length + 4]; + System.arraycopy (timerList, 0, newTimerList, 0, timerList.length); + timerList = newTimerList; + int [] newTimerIds = new int [timerIds.length + 4]; + System.arraycopy (timerIds, 0, newTimerIds, 0, timerIds.length); + timerIds = newTimerIds; + } + } + int newTimerID = OS.SetTimer (hwndMessage, timerId, milliseconds, 0); + if (newTimerID !is 0) { + timerList [index] = runnable; + timerIds [index] = newTimerID; + } +} + +bool translateAccelerator (MSG msg, Control control) { + accelKeyHit = true; + bool result = control.translateAccelerator (msg); + accelKeyHit = false; + return result; +} + +static int translateKey (int key) { + for (int i=0; i<KeyTable.length; i++) { + if (KeyTable [i] [0] is key) return KeyTable [i] [1]; + } + return 0; +} + +bool translateMnemonic (MSG msg, Control control) { + switch (msg.message) { + case OS.WM_CHAR: + case OS.WM_SYSCHAR: + return control.translateMnemonic (msg); + } + return false; +} + +bool translateTraversal (MSG msg, Control control) { + switch (msg.message) { + case OS.WM_KEYDOWN: + switch (msg.wParam) { + case OS.VK_RETURN: + case OS.VK_ESCAPE: + case OS.VK_TAB: + case OS.VK_UP: + case OS.VK_DOWN: + case OS.VK_LEFT: + case OS.VK_RIGHT: + case OS.VK_PRIOR: + case OS.VK_NEXT: + return control.translateTraversal (msg); + } + break; + case OS.WM_SYSKEYDOWN: + switch (msg.wParam) { + case OS.VK_MENU: + return control.translateTraversal (msg); + } + break; + } + return false; +} + +static int untranslateKey (int key) { + for (int i=0; i<KeyTable.length; i++) { + if (KeyTable [i] [1] is key) return KeyTable [i] [0]; + } + return 0; +} + +/** + * Forces all outstanding paint requests for the display + * to be processed before this method returns. + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see Control#update() + */ +public void update() { + checkDevice (); + /* + * Feature in Windows. When an application does not remove + * events from the event queue for some time, Windows assumes + * the application is not responding and no longer sends paint + * events to the application. The fix is to detect that the + * application is not responding and call PeekMessage() with + * PM_REMOVE to tell Windows that the application is ready + * to dispatch events. Note that the message does not have + * to be found or dispatched in order to wake Windows up. + * + * NOTE: This allows other cross thread messages to be delivered, + * most notably WM_ACTIVATE. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + if (OS.IsHungAppWindow (hwndMessage)) { + MSG msg = new MSG (); + int flags = OS.PM_REMOVE | OS.PM_NOYIELD; + OS.PeekMessage (msg, hwndMessage, SWT_NULL, SWT_NULL, flags); + } + } + Shell[] shells = getShells (); + for (int i=0; i<shells.length; i++) { + Shell shell = shells [i]; + if (!shell.isDisposed ()) shell.update (true); + } +} + +void updateImages () { + if (upArrow !is null) upArrow.dispose (); + if (downArrow !is null) downArrow.dispose (); + upArrow = downArrow = null; + for (int i=0; i<controlTable.length; i++) { + Control control = controlTable [i]; + if (control !is null) control.updateImages (); + } +} + +/** + * If the receiver's user-interface thread was <code>sleep</code>ing, + * causes it to be awakened and start running again. Note that this + * method may be called from any thread. + * + * @exception DWTException <ul> + * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> + * </ul> + * + * @see #sleep + */ +public void wake () { + if (isDisposed ()) error (DWT.ERROR_DEVICE_DISPOSED); + if (thread is Thread.currentThread ()) return; + wakeThread (); +} + +void wakeThread () { + if (OS.IsWinCE) { + OS.PostMessage (hwndMessage, OS.WM_NULL, 0, 0); + } else { + OS.PostThreadMessage (threadId, OS.WM_NULL, 0, 0); + } +} + +/* + * Returns a single character, converted from the wide + * character set (WCS) used by Java to the specified + * multi-byte character set used by the operating system + * widgets. + * + * @param ch the WCS character + * @param codePage the code page used to convert the character + * @return the MBCS character + */ +static int wcsToMbcs (char ch, int codePage) { + if (OS.IsUnicode) return ch; + if (ch <= 0x7F) return ch; + TCHAR buffer = new TCHAR (codePage, ch, false); + return buffer.tcharAt (0); +} + +/* + * Returns a single character, converted from the wide + * character set (WCS) used by Java to the default + * multi-byte character set used by the operating system + * widgets. + * + * @param ch the WCS character + * @return the MBCS character + */ +static int wcsToMbcs (char ch) { + return wcsToMbcs (ch, 0); +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + /* + * Bug in Adobe Reader 7.0. For some reason, when Adobe + * Reader 7.0 is deactivated from within Internet Explorer, + * it sends thousands of consecutive WM_NCHITTEST messages + * to the control that is under the cursor. It seems that + * if the control takes some time to respond to the message, + * Adobe stops sending them. The fix is to detect this case + * and sleep. + * + * NOTE: Under normal circumstances, Windows will never send + * consecutive WM_NCHITTEST messages to the same control without + * another message (normally WM_SETCURSOR) in between. + */ + if (msg is OS.WM_NCHITTEST) { + if (hitCount++ >= 1024) { + try {Thread.sleep (1);} catch (Throwable t) {} + } + } else { + hitCount = 0; + } + if (lastControl !is null && lastHwnd is hwnd) { + return lastControl.windowProc (hwnd, msg, wParam, lParam); + } + int index; + if (USE_PROPERTY) { + index = OS.GetProp (hwnd, SWT_OBJECT_INDEX) - 1; + } else { + index = OS.GetWindowLong (hwnd, OS.GWL_USERDATA) - 1; + } + if (0 <= index && index < controlTable.length) { + Control control = controlTable [index]; + if (control !is null) { + lastHwnd = hwnd; + lastControl = control; + return control.windowProc (hwnd, msg, wParam, lParam); + } + } + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +static String withCrLf (String string) { + + /* If the string is empty, return the string. */ + int length = string.length (); + if (length is 0) return string; + + /* + * Check for an LF or CR/LF and assume the rest of + * the string is formated that way. This will not + * work if the string contains mixed delimiters. + */ + int i = string.indexOf ('\n', 0); + if (i is -1) return string; + if (i > 0 && string.charAt (i - 1) is '\r') { + return string; + } + + /* + * The string is formatted with LF. Compute the + * number of lines and the size of the buffer + * needed to hold the result + */ + i++; + int count = 1; + while (i < length) { + if ((i = string.indexOf ('\n', i)) is -1) break; + count++; i++; + } + count += length; + + /* Create a new string with the CR/LF line terminator. */ + i = 0; + StringBuffer result = new StringBuffer (count); + while (i < length) { + int j = string.indexOf ('\n', i); + if (j is -1) j = length; + result.append (string.substring (i, j)); + if ((i = j) < length) { + result.append ("\r\n"); //$NON-NLS-1$ + i++; + } + } + return result.toString (); +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Event.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,228 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Event; + +import dwt.graphics.GC; +import dwt.graphics.Rectangle; + +import dwt.widgets.Widget; +import dwt.widgets.Display; + +import tango.text.convert.Format; + + +/** + * Instances of this class provide a description of a particular + * event which occurred within DWT. The DWT <em>untyped listener</em> + * API uses these instances for all event dispatching. + * <p> + * Note: For a given event, only the fields which are appropriate + * will be filled in. The contents of the fields which are not used + * by the event are unspecified. + * </p> + * + * @see Listener + * @see dwt.events.TypedEvent + */ + +public class Event { + + /** + * the display where the event occurred + * + * @since 2.0 + */ + public Display display; + + /** + * the widget that issued the event + */ + public Widget widget; + + /** + * the type of event, as defined by the event type constants + * in class <code>DWT</code> + * + * @see dwt.DWT + */ + public int type; + + /** + * the event specific detail field, as defined by the detail constants + * in class <code>DWT</code> + * + * @see dwt.DWT + */ + public int detail; + + /** + * the item that the event occurred in (can be null) + */ + public Widget item; + + /** + * the index of the item where the event occurred + * + * @since 3.2 + */ + public int index; + + /** + * the graphics context to use when painting + * that is configured to use the colors, font and + * damaged region of the control. It is valid + * only during the paint and must not be disposed + */ + public GC gc; + + /** + * depending on the event type, the x offset of the bounding + * rectangle of the region that requires painting or the + * widget-relative, x coordinate of the pointer at the + * time the mouse button was pressed or released + */ + public int x; + + /** + * depending on the event type, the y offset of the bounding + * rectangle of the region that requires painting or the + * widget-relative, y coordinate of the pointer at the + * time the mouse button was pressed or released + */ + public int y; + + /** + * the width of the bounding rectangle of the + * region that requires painting + */ + public int width; + + /** + * the height of the bounding rectangle of the + * region that requires painting + */ + public int height; + + /** + * depending on the event type, the number of following + * paint events which are pending which may always be zero + * on some platforms or the number of lines or pages to + * scroll using the mouse wheel + */ + public int count; + + /** + * the time that the event occurred. + * + * NOTE: This field is an unsigned integer and should + * be AND'ed with 0xFFFFFFFFL so that it can be treated + * as a signed long. + */ + public int time; + + /** + * the button that was pressed or released; 1 for the + * first button, 2 for the second button, and 3 for the + * third button, etc. + */ + public int button; + + /** + * depending on the event, the character represented by the key + * that was typed. This is the final character that results + * after all modifiers have been applied. For example, when the + * user types Ctrl+A, the character value is 0x01 (ASCII SOH). + * It is important that applications do not attempt to modify the + * character value based on a stateMask (such as DWT.CTRL) or the + * resulting character will not be correct. + */ + public wchar character = '\0'; + + /** + * depending on the event, the key code of the key that was typed, + * as defined by the key code constants in class <code>DWT</code>. + * When the character field of the event is ambiguous, this field + * contains the unaffected value of the original character. For + * example, typing Ctrl+M or Enter both result in the character '\r' + * but the keyCode field will also contain '\r' when Enter was typed + * and 'm' when Ctrl+M was typed. + * + * @see dwt.DWT + */ + public int keyCode; + + /** + * depending on the event, the state of the keyboard modifier + * keys and mouse masks at the time the event was generated. + * + * @see dwt.DWT + */ + public int stateMask; + + /** + * depending on the event, the range of text being modified. + * Setting these fields has no effect. + */ + public int start, end; + + /** + * depending on the event, the new text that will be inserted. + * Setting this field will change the text that is about to + * be inserted or deleted. + */ + public char[] text; + + /** + * depending on the event, a flag indicating whether the operation + * should be allowed. Setting this field to false will cancel the + * operation. + */ + public bool doit = true; + + /** + * a field for application use + */ + public Object data; + +/** + * Gets the bounds. + * + * @return a rectangle that is the bounds. + */ +public Rectangle getBounds () { + return new Rectangle (x, y, width, height); +} + +/** + * Sets the bounds. + * + * @param rect the new rectangle + */ +public void setBounds (Rectangle rect) { + this.x = rect.x; + this.y = rect.y; + this.width = rect.width; + this.height = rect.height; +} + +/** + * Returns a string containing a concise, human-readable + * description of the receiver. + * + * @return a string representation of the event + */ +public char[] toString () { + return Format( "Event {type={} {} time={} data={} x={} y={} width={} height={} detail={}}", + type, widget, time, data, x, y, width, height, detail ); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ +} +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/EventTable.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,142 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.EventTable; + +import dwt.widgets.Listener; +import dwt.widgets.Event; +import dwt.widgets.Listener; +import dwt.widgets.TypedListener; +import dwt.internal.DWTEventListener; +import dwt.dwthelper.System; +import dwt.DWT; +import dwt.internal.DWTEventListener; + +/** + * Instances of this class implement a simple + * look up mechanism that maps an event type + * to a listener. Multiple listeners for the + * same event type are supported. + */ + +class EventTable { + int [] types; + Listener [] listeners; + int level; + +public void hook (int eventType, Listener listener) { + if (types is null) types = new int [4]; + if (listeners is null) listeners = new Listener [4]; + int length = types.length, index = length - 1; + while (index >= 0) { + if (types [index] !is 0) break; + --index; + } + index++; + if (index is length) { + int [] newTypes = new int [length + 4]; + System.arraycopy (types, 0, newTypes, 0, length); + types = newTypes; + Listener [] newListeners = new Listener [length + 4]; + SimpleType!(Listener).arraycopy (listeners, 0, newListeners, 0, length); + listeners = newListeners; + } + types [index] = eventType; + listeners [index] = listener; +} + +public bool hooks (int eventType) { + if (types is null) return false; + for (int i=0; i<types.length; i++) { + if (types [i] is eventType) return true; + } + return false; +} + +public void sendEvent (Event event) { + if (types is null) return; + level += level >= 0 ? 1 : -1; + try { + for (int i=0; i<types.length; i++) { + if (event.type is DWT.None) return; + if (types [i] is event.type) { + Listener listener = listeners [i]; + if (listener !is null) listener.handleEvent (event); + } + } + } finally { + bool compact = level < 0; + level -= level >= 0 ? 1 : -1; + if (compact && level is 0) { + int index = 0; + for (int i=0; i<types.length; i++) { + if (types [i] !is 0) { + types [index] = types [i]; + listeners [index] = listeners [i]; + index++; + } + } + for (int i=index; i<types.length; i++) { + types [i] = 0; + listeners [i] = null; + } + } + } +} + +public int size () { + if (types is null) return 0; + int count = 0; + for (int i=0; i<types.length; i++) { + if (types [i] !is 0) count++; + } + return count; +} + +void remove (int index) { + if (level is 0) { + int end = types.length - 1; + System.arraycopy (types, index + 1, types, index, end - index); + SimpleType!(Listener).arraycopy (listeners, index + 1, listeners, index, end - index); + index = end; + } else { + if (level > 0) level = -level; + } + types [index] = 0; + listeners [index] = null; +} + +public void unhook (int eventType, Listener listener) { + if (types is null) return; + for (int i=0; i<types.length; i++) { + if (types [i] is eventType && listeners [i] is listener) { + remove (i); + return; + } + } +} + +public void unhook (int eventType, DWTEventListener listener) { + if (types is null) return; + for (int i=0; i<types.length; i++) { + if (types [i] is eventType) { + if ( auto typedListener = cast(TypedListener) listeners [i] ) { + if (typedListener.getEventListener () is listener) { + remove (i); + return; + } + } + } + } +} + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ExpandBar.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,792 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.ExpandBar; + +import dwt.widgets.Composite; +class ExpandBar : Composite { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ExpandAdapter; +import dwt.events.ExpandEvent; +import dwt.events.ExpandListener; +import dwt.graphics.Font; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.LOGFONT; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.NONCLIENTMETRICS; +import dwt.internal.win32.NONCLIENTMETRICSA; +import dwt.internal.win32.NONCLIENTMETRICSW; +import dwt.internal.win32.OS; +import dwt.internal.win32.PAINTSTRUCT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SCROLLINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; + +/** + * Instances of this class support the layout of selectable + * expand bar items. + * <p> + * The item children that may be added to instances of this class + * must be of type <code>ExpandItem</code>. + * </p><p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>V_SCROLL</dd> + * <dt><b>Events:</b></dt> + * <dd>Expand, Collapse</dd> + * </dl> + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @see ExpandItem + * @see ExpandEvent + * @see ExpandListener + * @see ExpandAdapter + * + * @since 3.2 + */ +public class ExpandBar extends Composite { + ExpandItem[] items; + int itemCount; + ExpandItem focusItem; + int spacing = 4; + int yCurrentScroll; + int hFont; + + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ExpandBar (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when an item in the receiver is expanded or collapsed + * by sending it one of the messages defined in the <code>ExpandListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ExpandListener + * @see #removeExpandListener + */ +public void addExpandListener (ExpandListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Expand, typedListener); + addListener (DWT.Collapse, typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +static int checkStyle (int style) { + style &= ~DWT.H_SCROLL; + return style | DWT.NO_BACKGROUND; +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int height = 0, width = 0; + if (wHint is DWT.DEFAULT || hHint is DWT.DEFAULT) { + if (itemCount > 0) { + int hDC = OS.GetDC (handle); + int hTheme = 0; + if (isAppThemed ()) { + hTheme = display.hExplorerBarTheme (); + } + int hCurrentFont = 0, oldFont = 0; + if (hTheme is 0) { + if (hFont !is 0) { + hCurrentFont = hFont; + } else { + if (!OS.IsWinCE) { + NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); + info.cbSize = NONCLIENTMETRICS.sizeof; + if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { + LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfCaptionFont : ((NONCLIENTMETRICSA)info).lfCaptionFont; + hCurrentFont = OS.CreateFontIndirect (logFont); + } + } + } + if (hCurrentFont !is 0) { + oldFont = OS.SelectObject (hDC, hCurrentFont); + } + } + height += spacing; + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items [i]; + height += item.getHeaderHeight (); + if (item.expanded) height += item.height; + height += spacing; + width = Math.max (width, item.getPreferredWidth (hTheme, hDC)); + } + if (hCurrentFont !is 0) { + OS.SelectObject (hDC, oldFont); + if (hCurrentFont !is hFont) OS.DeleteObject (hCurrentFont); + } + OS.ReleaseDC (handle, hDC); + } + } + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + Rectangle trim = computeTrim (0, 0, width, height); + return new Point (trim.width, trim.height); +} + +void createHandle () { + super.createHandle (); + state &= ~CANVAS; + state |= TRACK_MOUSE; +} + +void createItem (ExpandItem item, int style, int index) { + if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); + if (itemCount is items.length) { + ExpandItem [] newItems = new ExpandItem [itemCount + 4]; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; + } + System.arraycopy (items, index, items, index + 1, itemCount - index); + items [index] = item; + itemCount++; + if (focusItem is null) focusItem = item; + + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + item.width = Math.max (0, rect.right - rect.left - spacing * 2); + layoutItems (index, true); +} + +void createWidget () { + super.createWidget (); + items = new ExpandItem [4]; + if (!isAppThemed ()) { + backgroundMode = DWT.INHERIT_DEFAULT; + } +} + +int defaultBackground() { + if (!isAppThemed ()) { + return OS.GetSysColor (OS.COLOR_WINDOW); + } + return super.defaultBackground(); +} + +void destroyItem (ExpandItem item) { + int index = 0; + while (index < itemCount) { + if (items [index] is item) break; + index++; + } + if (index is itemCount) return; + if (item is focusItem) { + int focusIndex = index > 0 ? index - 1 : 1; + if (focusIndex < itemCount) { + focusItem = items [focusIndex]; + focusItem.redraw (true); + } else { + focusItem = null; + } + } + System.arraycopy (items, index + 1, items, index, --itemCount - index); + items [itemCount] = null; + item.redraw (true); + layoutItems (index, true); +} + +void drawThemeBackground (int hDC, int hwnd, RECT rect) { + RECT rect2 = new RECT (); + OS.GetClientRect (handle, rect2); + OS.MapWindowPoints (handle, hwnd, rect2, 2); + OS.DrawThemeBackground (display.hExplorerBarTheme (), hDC, OS.EBP_NORMALGROUPBACKGROUND, 0, rect2, null); +} + +void drawWidget (GC gc, RECT clipRect) { + int hTheme = 0; + if (isAppThemed ()) { + hTheme = display.hExplorerBarTheme (); + } + if (hTheme !is 0) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + OS.DrawThemeBackground (hTheme, gc.handle, OS.EBP_HEADERBACKGROUND, 0, rect, clipRect); + } else { + drawBackground (gc.handle); + } + bool drawFocus = false; + if (handle is OS.GetFocus ()) { + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + drawFocus = (uiState & OS.UISF_HIDEFOCUS) is 0; + } + int hCaptionFont = 0, oldFont = 0; + if (hTheme is 0) { + if (!OS.IsWinCE && hFont is 0) { + NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); + info.cbSize = NONCLIENTMETRICS.sizeof; + if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { + LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfCaptionFont : ((NONCLIENTMETRICSA)info).lfCaptionFont; + hCaptionFont = OS.CreateFontIndirect (logFont); + oldFont = OS.SelectObject (gc.handle, hCaptionFont); + } + } + } + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items[i]; + item.drawItem (gc, hTheme, clipRect, item is focusItem && drawFocus); + } + if (hCaptionFont !is 0) { + OS.SelectObject (gc.handle, oldFont); + OS.DeleteObject (hCaptionFont); + } +} + +Control findBackgroundControl () { + Control control = super.findBackgroundControl (); + if (!isAppThemed ()) { + if (control is null) control = this; + } + return control; +} + +Control findThemeControl () { + return isAppThemed () ? this : super.findThemeControl (); +} + +int getBandHeight () { + if (hFont is 0) return ExpandItem.CHEVRON_SIZE; + int hDC = OS.GetDC (handle); + int oldHFont = OS.SelectObject (hDC, hFont); + TEXTMETRIC lptm = OS.IsUnicode ? (TEXTMETRIC)new TEXTMETRICW() : new TEXTMETRICA(); + OS.GetTextMetrics (hDC, lptm); + OS.SelectObject (hDC, oldHFont); + OS.ReleaseDC (handle, hDC); + return Math.max (ExpandItem.CHEVRON_SIZE, lptm.tmHeight + 4); +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ExpandItem getItem (int index) { + checkWidget (); + if (!(0 <= index && index < itemCount)) error (DWT.ERROR_INVALID_RANGE); + return items [index]; +} + +/** + * Returns the number of items contained in the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + return itemCount; +} + +/** + * Returns an array of <code>ExpandItem</code>s which are the items + * in the receiver. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ExpandItem [] getItems () { + checkWidget (); + ExpandItem [] result = new ExpandItem [itemCount]; + System.arraycopy (items, 0, result, 0, itemCount); + return result; +} + +/** + * Returns the receiver's spacing. + * + * @return the spacing + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSpacing () { + checkWidget (); + return spacing; +} + +/** + * Searches the receiver's list starting at the first item + * (index 0) until an item is found that is equal to the + * argument, and returns the index of that item. If no item + * is found, returns -1. + * + * @param item the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (ExpandItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + for (int i = 0; i < itemCount; i++) { + if (items [i] is item) return i; + } + return -1; +} + +bool isAppThemed () { + if (background !is -1) return false; + if (foreground !is -1) return false; + if (hFont !is 0) return false; + return OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed (); +} + +void layoutItems (int index, bool setScrollbar) { + if (index < itemCount) { + int y = spacing - yCurrentScroll; + for (int i = 0; i < index; i++) { + ExpandItem item = items [i]; + if (item.expanded) y += item.height; + y += item.getHeaderHeight () + spacing; + } + for (int i = index; i < itemCount; i++) { + ExpandItem item = items [i]; + item.setBounds (spacing, y, 0, 0, true, false); + if (item.expanded) y += item.height; + y += item.getHeaderHeight () + spacing; + } + } + if (setScrollbar) setScrollbar (); +} + +void releaseChildren (bool destroy) { + if (items !is null) { + for (int i=0; i<items.length; i++) { + ExpandItem item = items [i]; + if (item !is null && !item.isDisposed ()) { + item.release (false); + } + } + items = null; + } + focusItem = null; + super.releaseChildren (destroy); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when items in the receiver are expanded or collapsed. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ExpandListener + * @see #addExpandListener + */ +public void removeExpandListener (ExpandListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Expand, listener); + eventTable.unhook (DWT.Collapse, listener); +} + +void setBackgroundPixel (int pixel) { + super.setBackgroundPixel (pixel); + if (!OS.IsWinCE) { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } +} + +public void setFont (Font font) { + super.setFont (font); + hFont = font !is null ? font.handle : 0; + layoutItems (0, true); +} + +void setForegroundPixel (int pixel) { + super.setForegroundPixel (pixel); + if (!OS.IsWinCE) { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } +} + +void setScrollbar () { + if (itemCount is 0) return; + if ((style & DWT.V_SCROLL) is 0) return; + RECT rect = new RECT(); + OS.GetClientRect (handle, rect); + int height = rect.bottom - rect.top; + ExpandItem item = items [itemCount - 1]; + int maxHeight = item.y + getBandHeight () + spacing; + if (item.expanded) maxHeight += item.height; + + //claim bottom free space + if (yCurrentScroll > 0 && height > maxHeight) { + yCurrentScroll = Math.max (0, yCurrentScroll + maxHeight - height); + layoutItems (0, false); + } + maxHeight += yCurrentScroll; + + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE | OS.SIF_PAGE | OS.SIF_POS; + info.nMin = 0; + info.nMax = maxHeight; + info.nPage = height; + info.nPos = Math.min (yCurrentScroll, info.nMax); + if (info.nPage !is 0) info.nPage++; + OS.SetScrollInfo (handle, OS.SB_VERT, info, true); +} + +/** + * Sets the receiver's spacing. Spacing specifies the number of pixels allocated around + * each item. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSpacing (int spacing) { + checkWidget (); + if (spacing < 0) return; + if (spacing is this.spacing) return; + this.spacing = spacing; + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + int width = Math.max (0, (rect.right - rect.left) - spacing * 2); + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items[i]; + if (item.width !is width) item.setBounds (0, 0, width, item.height, false, true); + } + layoutItems (0, true); + OS.InvalidateRect (handle, null, true); +} + +void showItem (ExpandItem item) { + Control control = item.control; + if (control !is null && !control.isDisposed ()) { + control.setVisible (item.expanded); + } + item.redraw (true); + int index = indexOf (item); + layoutItems (index + 1, true); +} + +TCHAR windowClass () { + return display.windowClass; +} + +int windowProc () { + return display.windowProc; +} + +LRESULT WM_KEYDOWN (int wParam, int lParam) { + LRESULT result = super.WM_KEYDOWN (wParam, lParam); + if (result !is null) return result; + if (focusItem is null) return result; + switch (wParam) { + case OS.VK_SPACE: + case OS.VK_RETURN: + Event event = new Event (); + event.item = focusItem; + sendEvent (focusItem.expanded ? DWT.Collapse : DWT.Expand, event); + focusItem.expanded = !focusItem.expanded; + showItem (focusItem); + return LRESULT.ZERO; + case OS.VK_UP: { + int focusIndex = indexOf (focusItem); + if (focusIndex > 0) { + focusItem.redraw (true); + focusItem = items [focusIndex - 1]; + focusItem.redraw (true); + return LRESULT.ZERO; + } + break; + } + case OS.VK_DOWN: { + int focusIndex = indexOf (focusItem); + if (focusIndex < itemCount - 1) { + focusItem.redraw (true); + focusItem = items [focusIndex + 1]; + focusItem.redraw (true); + return LRESULT.ZERO; + } + break; + } + } + return result; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_KILLFOCUS (wParam, lParam); + if (focusItem !is null) focusItem.redraw (true); + return result; +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); + if (result is LRESULT.ZERO) return result; + int x = (short) (lParam & 0xFFFF); + int y = (short) (lParam >> 16); + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items[i]; + bool hover = item.isHover (x, y); + if (hover && focusItem !is item) { + focusItem.redraw (true); + focusItem = item; + focusItem.redraw (true); + forceFocus (); + break; + } + } + return result; +} + +LRESULT WM_LBUTTONUP (int wParam, int lParam) { + LRESULT result = super.WM_LBUTTONUP (wParam, lParam); + if (result is LRESULT.ZERO) return result; + if (focusItem is null) return result; + int x = (short) (lParam & 0xFFFF); + int y = (short) (lParam >> 16); + bool hover = focusItem.isHover (x, y); + if (hover) { + Event event = new Event (); + event.item = focusItem; + sendEvent (focusItem.expanded ? DWT.Collapse : DWT.Expand, event); + focusItem.expanded = !focusItem.expanded; + showItem (focusItem); + } + return result; +} + +LRESULT WM_MOUSELEAVE (int wParam, int lParam) { + LRESULT result = super.WM_MOUSELEAVE (wParam, lParam); + if (result !is null) return result; + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items [i]; + if (item.hover) { + item.hover = false; + item.redraw (false); + break; + } + } + return result; +} + +LRESULT WM_MOUSEMOVE (int wParam, int lParam) { + LRESULT result = super.WM_MOUSEMOVE (wParam, lParam); + if (result is LRESULT.ZERO) return result; + int x = (short) (lParam & 0xFFFF); + int y = (short) (lParam >> 16); + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items [i]; + bool hover = item.isHover (x, y); + if (item.hover !is hover) { + item.hover = hover; + item.redraw (false); + } + } + return result; +} + +LRESULT WM_PAINT (int wParam, int lParam) { + PAINTSTRUCT ps = new PAINTSTRUCT (); + GCData data = new GCData (); + data.ps = ps; + data.hwnd = handle; + GC gc = new_GC (data); + if (gc !is null) { + int width = ps.right - ps.left; + int height = ps.bottom - ps.top; + if (width !is 0 && height !is 0) { + RECT rect = new RECT (); + OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); + drawWidget (gc, rect); + if (hooks (DWT.Paint) || filters (DWT.Paint)) { + Event event = new Event (); + event.gc = gc; + event.x = rect.left; + event.y = rect.top; + event.width = width; + event.height = height; + sendEvent (DWT.Paint, event); + event.gc = null; + } + } + gc.dispose (); + } + return LRESULT.ZERO; +} + +LRESULT WM_PRINTCLIENT (int wParam, int lParam) { + LRESULT result = super.WM_PRINTCLIENT (wParam, lParam); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + GCData data = new GCData (); + data.device = display; + data.foreground = getForegroundPixel (); + GC gc = GC.win32_new (wParam, data); + drawWidget (gc, rect); + gc.dispose (); + return result; +} + +LRESULT WM_SETCURSOR (int wParam, int lParam) { + LRESULT result = super.WM_SETCURSOR (wParam, lParam); + if (result !is null) return result; + int hitTest = lParam & 0xFFFF; + if (hitTest is OS.HTCLIENT) { + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items [i]; + if (item.hover) { + int hCursor = OS.LoadCursor (0, OS.IDC_HAND); + OS.SetCursor (hCursor); + return LRESULT.ONE; + } + } + } + return result; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_SETFOCUS (wParam, lParam); + if (focusItem !is null) focusItem.redraw (true); + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + int width = Math.max (0, (rect.right - rect.left) - spacing * 2); + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items[i]; + if (item.width !is width) item.setBounds (0, 0, width, item.height, false, true); + } + setScrollbar (); + OS.InvalidateRect (handle, null, true); + return result; +} + +LRESULT wmScroll (ScrollBar bar, bool update, int hwnd, int msg, int wParam, int lParam) { + LRESULT result = super.wmScroll (bar, true, hwnd, msg, wParam, lParam); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + OS.GetScrollInfo (handle, OS.SB_VERT, info); + int updateY = yCurrentScroll - info.nPos; + OS.ScrollWindowEx (handle, 0, updateY, null, null, 0, null, OS.SW_SCROLLCHILDREN | OS.SW_INVALIDATE); + yCurrentScroll = info.nPos; + if (updateY !is 0) { + for (int i = 0; i < itemCount; i++) { + items [i].y += updateY; + } + } + return result; +} +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ExpandItem.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,504 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.ExpandItem; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class ExpandItem : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.GC; +import dwt.graphics.Image; +import dwt.graphics.Rectangle; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class represent a selectable user interface object + * that represents a expandable item in a expand bar. + * <p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @see ExpandBar + * + * @since 3.2 + */ +public class ExpandItem extends Item { + ExpandBar parent; + Control control; + bool expanded, hover; + int x, y, width, height; + int imageHeight, imageWidth; + static final int TEXT_INSET = 6; + static final int BORDER = 1; + static final int CHEVRON_SIZE = 24; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ExpandItem (ExpandBar parent, int style) { + this (parent, style, checkNull (parent).getItemCount ()); +} + +/** + * Constructs a new instance of this class given its parent, a + * style value describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ExpandItem (ExpandBar parent, int style, int index) { + super (parent, style); + this.parent = parent; + parent.createItem (this, style, index); +} + +static ExpandBar checkNull (ExpandBar control) { + if (control is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + return control; +} + +private void drawChevron (int hDC, RECT rect) { + int oldBrush = OS.SelectObject (hDC, OS.GetSysColorBrush (OS.COLOR_BTNFACE)); + OS.PatBlt (hDC, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); + OS.SelectObject (hDC, oldBrush); + rect.left += 4; + rect.top += 4; + rect.right -= 4; + rect.bottom -= 4; + int hPen = OS.CreatePen (OS.PS_SOLID, 1, parent.foreground); + int oldPen = OS.SelectObject (hDC, hPen); + int [] polyline1, polyline2; + if (expanded) { + int px = rect.left + 5; + int py = rect.top + 7; + polyline1 = new int [] { + px,py, px+1,py, px+1,py-1, px+2,py-1, px+2,py-2, px+3,py-2, px+3,py-3, + px+3,py-2, px+4,py-2, px+4,py-1, px+5,py-1, px+5,py, px+7,py}; + py += 4; + polyline2 = new int [] { + px,py, px+1,py, px+1,py-1, px+2,py-1, px+2,py-2, px+3,py-2, px+3,py-3, + px+3,py-2, px+4,py-2, px+4,py-1, px+5,py-1, px+5,py, px+7,py}; + } else { + int px = rect.left + 5; + int py = rect.top + 4; + polyline1 = new int[] { + px,py, px+1,py, px+1,py+1, px+2,py+1, px+2,py+2, px+3,py+2, px+3,py+3, + px+3,py+2, px+4,py+2, px+4,py+1, px+5,py+1, px+5,py, px+7,py}; + py += 4; + polyline2 = new int [] { + px,py, px+1,py, px+1,py+1, px+2,py+1, px+2,py+2, px+3,py+2, px+3,py+3, + px+3,py+2, px+4,py+2, px+4,py+1, px+5,py+1, px+5,py, px+7,py}; + } + OS.Polyline (hDC, polyline1, polyline1.length / 2); + OS.Polyline (hDC, polyline2, polyline2.length / 2); + if (hover) { + int whitePen = OS.CreatePen (OS.PS_SOLID, 1, OS.GetSysColor (OS.COLOR_3DHILIGHT)); + int darkGrayPen = OS.CreatePen (OS.PS_SOLID, 1, OS.GetSysColor (OS.COLOR_3DSHADOW)); + OS.SelectObject (hDC, whitePen); + int [] points1 = { + rect.left, rect.bottom, + rect.left, rect.top, + rect.right, rect.top}; + OS.Polyline (hDC, points1, points1.length / 2); + OS.SelectObject (hDC, darkGrayPen); + int [] points2 = { + rect.right, rect.top, + rect.right, rect.bottom, + rect.left, rect.bottom}; + OS.Polyline (hDC, points2, points2.length / 2); + OS.SelectObject (hDC, oldPen); + OS.DeleteObject (whitePen); + OS.DeleteObject (darkGrayPen); + } else { + OS.SelectObject (hDC, oldPen); + } + OS.DeleteObject (hPen); +} + +void drawItem (GC gc, int hTheme, RECT clipRect, bool drawFocus) { + int hDC = gc.handle; + int headerHeight = parent.getBandHeight (); + RECT rect = new RECT (); + OS.SetRect (rect, x, y, x + width, y + headerHeight); + if (hTheme !is 0) { + OS.DrawThemeBackground (hTheme, hDC, OS.EBP_NORMALGROUPHEAD, 0, rect, clipRect); + } else { + int oldBrush = OS.SelectObject (hDC, OS.GetSysColorBrush (OS.COLOR_BTNFACE)); + OS.PatBlt (hDC, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); + OS.SelectObject (hDC, oldBrush); + } + if (image !is null) { + rect.left += ExpandItem.TEXT_INSET; + if (imageHeight > headerHeight) { + gc.drawImage (image, rect.left, rect.top + headerHeight - imageHeight); + } else { + gc.drawImage (image, rect.left, rect.top + (headerHeight - imageHeight) / 2); + } + rect.left += imageWidth; + } + if (text.length () > 0) { + rect.left += ExpandItem.TEXT_INSET; + TCHAR buffer = new TCHAR (parent.getCodePage (), text, false); + if (hTheme !is 0) { + OS.DrawThemeText (hTheme, hDC, OS.EBP_NORMALGROUPHEAD, 0, buffer.chars, buffer.length(), OS.DT_VCENTER | OS.DT_SINGLELINE, 0, rect); + } else { + int oldBkMode = OS.SetBkMode (hDC, OS.TRANSPARENT); + OS.DrawText (hDC, buffer, buffer.length (), rect, OS.DT_VCENTER | OS.DT_SINGLELINE); + OS.SetBkMode (hDC, oldBkMode); + } + } + int chevronSize = ExpandItem.CHEVRON_SIZE; + rect.left = rect.right - chevronSize; + rect.top = y + (headerHeight - chevronSize) / 2; + rect.bottom = rect.top + chevronSize; + if (hTheme !is 0) { + int partID = expanded ? OS.EBP_NORMALGROUPCOLLAPSE : OS.EBP_NORMALGROUPEXPAND; + int stateID = hover ? OS.EBNGC_HOT : OS.EBNGC_NORMAL; + OS.DrawThemeBackground (hTheme, hDC, partID, stateID, rect, clipRect); + } else { + drawChevron (hDC, rect); + } + if (drawFocus) { + OS.SetRect (rect, x + 1, y + 1, x + width - 2, y + headerHeight - 2); + OS.DrawFocusRect (hDC, rect); + } + if (expanded) { + if (!parent.isAppThemed ()) { + int pen = OS.CreatePen (OS.PS_SOLID, 1, OS.GetSysColor (OS.COLOR_BTNFACE)); + int oldPen = OS.SelectObject (hDC, pen); + int [] points = { + x, y + headerHeight, + x, y + headerHeight + height, + x + width - 1, y + headerHeight + height, + x + width - 1, y + headerHeight - 1}; + OS.Polyline (hDC, points, points.length / 2); + OS.SelectObject (hDC, oldPen); + OS.DeleteObject (pen); + } + } +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +/** + * Returns the control that is shown when the item is expanded. + * If no control has been set, return <code>null</code>. + * + * @return the control + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Control getControl () { + checkWidget (); + return control; +} + +/** + * Returns <code>true</code> if the receiver is expanded, + * and false otherwise. + * + * @return the expanded state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getExpanded () { + checkWidget (); + return expanded; +} + +/** + * Returns the height of the receiver's header + * + * @return the height of the header + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getHeaderHeight () { + checkWidget (); + return Math.max (parent.getBandHeight (), imageHeight); +} + +/** + * Gets the height of the receiver. + * + * @return the height + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getHeight () { + checkWidget (); + return height; +} + +/** + * Returns the receiver's parent, which must be a <code>ExpandBar</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ExpandBar getParent () { + checkWidget (); + return parent; +} + +int getPreferredWidth (int hTheme, int hDC) { + int width = ExpandItem.TEXT_INSET * 2 + ExpandItem.CHEVRON_SIZE; + if (image !is null) { + width += ExpandItem.TEXT_INSET + imageWidth; + } + if (text.length() > 0) { + RECT rect = new RECT (); + TCHAR buffer = new TCHAR (parent.getCodePage (), text, false); + if (hTheme !is 0) { + OS.GetThemeTextExtent (hTheme, hDC, OS.EBP_NORMALGROUPHEAD, 0, buffer.chars, buffer.length(), OS.DT_SINGLELINE, null, rect); + } else { + OS.DrawText (hDC, buffer, buffer.length (), rect, OS.DT_CALCRECT); + } + width += (rect.right - rect.left); + } + return width; +} + +bool isHover (int x, int y) { + int bandHeight = parent.getBandHeight (); + return this.x < x && x < (this.x + width) && this.y < y && y < (this.y + bandHeight); +} + +void redraw (bool all) { + int parentHandle = parent.handle; + int headerHeight = parent.getBandHeight (); + RECT rect = new RECT (); + int left = all ? x : x + width - headerHeight; + OS.SetRect (rect, left, y, x + width, y + headerHeight); + OS.InvalidateRect (parentHandle, rect, true); + if (imageHeight > headerHeight) { + OS.SetRect (rect, x + ExpandItem.TEXT_INSET, y + headerHeight - imageHeight, x + ExpandItem.TEXT_INSET + imageWidth, y); + OS.InvalidateRect (parentHandle, rect, true); + } + if (!parent.isAppThemed ()) { + OS.SetRect (rect, x, y + headerHeight, x + width, y + headerHeight + height + 1); + OS.InvalidateRect (parentHandle, rect, true); + } +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; +} + +void releaseWidget () { + super.releaseWidget (); + control = null; +} + +void setBounds (int x, int y, int width, int height, bool move, bool size) { + redraw (true); + int headerHeight = parent.getBandHeight (); + if (move) { + if (imageHeight > headerHeight) { + y += (imageHeight - headerHeight); + } + this.x = x; + this.y = y; + redraw (true); + } + if (size) { + this.width = width; + this.height = height; + redraw (true); + } + if (control !is null && !control.isDisposed ()) { + if (!parent.isAppThemed ()) { + x += BORDER; + width = Math.max (0, width - BORDER * 2); + height = Math.max (0, height - BORDER); + } + if (move && size) control.setBounds (x, y + headerHeight, width, height); + if (move && !size) control.setLocation (x, y + headerHeight); + if (!move && size) control.setSize (width, height); + } +} + +/** + * Sets the control that is shown when the item is expanded. + * + * @param control the new control (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> + * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setControl (Control control) { + checkWidget (); + if (control !is null) { + if (control.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + if (control.parent !is parent) error (DWT.ERROR_INVALID_PARENT); + } + this.control = control; + if (control !is null) { + int headerHeight = parent.getBandHeight (); + control.setVisible (expanded); + if (!parent.isAppThemed ()) { + int width = Math.max (0, this.width - BORDER * 2); + int height = Math.max (0, this.height - BORDER); + control.setBounds (x + BORDER, y + headerHeight, width, height); + } else { + control.setBounds (x, y + headerHeight, width, height); + } + } +} + +/** + * Sets the expanded state of the receiver. + * + * @param expanded the new expanded state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setExpanded (bool expanded) { + checkWidget (); + this.expanded = expanded; + parent.showItem (this); +} + +/** + * Sets the height of the receiver. This is height of the item when it is expanded, + * excluding the height of the header. + * + * @param height the new height + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setHeight (int height) { + checkWidget (); + if (height < 0) return; + setBounds (0, 0, width, height, false, true); + if (expanded) parent.layoutItems (parent.indexOf (this) + 1, true); +} + +public void setImage (Image image) { + super.setImage (image); + int oldImageHeight = imageHeight; + if (image !is null) { + Rectangle bounds = image.getBounds (); + imageHeight = bounds.height; + imageWidth = bounds.width; + } else { + imageHeight = imageWidth = 0; + } + if (oldImageHeight !is imageHeight) { + parent.layoutItems (parent.indexOf (this), true); + } else { + redraw (true); + } +} + +public void setText (String string) { + super.setText (string); + redraw (true); +} +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/FileDialog.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,510 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.FileDialog; + +import dwt.widgets.Dialog; +import dwt.widgets.Shell; + +class FileDialog : Dialog { + public this (Shell parent) { + this (parent, 0); + } + public this (Shell parent, int style) { + super (parent, style); + } + +} + +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.internal.Callback; +import dwt.internal.win32.OFNOTIFY; +import dwt.internal.win32.OPENFILENAME; +import dwt.internal.win32.OS; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class allow the user to navigate + * the file system and select or enter a file name. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>SAVE, OPEN, MULTI</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of the styles SAVE and OPEN may be specified. + * </p><p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ +public class FileDialog extends Dialog { + String [] filterNames = new String [0]; + String [] filterExtensions = new String [0]; + String [] fileNames = new String [0]; + String filterPath = "", fileName = ""; + static final String FILTER = "*.*"; + static int BUFFER_SIZE = 1024 * 32; + static bool USE_HOOK; + +/** + * Constructs a new instance of this class given only its parent. + * + * @param parent a shell which will be the parent of the new instance + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public FileDialog (Shell parent) { + this (parent, DWT.PRIMARY_MODAL); +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a shell which will be the parent of the new instance + * @param style the style of dialog to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public FileDialog (Shell parent, int style) { + super (parent, style); + checkSubclass (); +} + +/** + * Returns the path of the first file that was + * selected in the dialog relative to the filter path, or an + * empty string if no such file has been selected. + * + * @return the relative path of the file + */ +public String getFileName () { + return fileName; +} + +/** + * Returns a (possibly empty) array with the paths of all files + * that were selected in the dialog relative to the filter path. + * + * @return the relative paths of the files + */ +public String [] getFileNames () { + return fileNames; +} + +/** + * Returns the file extensions which the dialog will + * use to filter the files it shows. + * + * @return the file extensions filter + */ +public String [] getFilterExtensions () { + return filterExtensions; +} + +/** + * Returns the names that describe the filter extensions + * which the dialog will use to filter the files it shows. + * + * @return the list of filter names + */ +public String [] getFilterNames () { + return filterNames; +} + +/** + * Returns the directory path that the dialog will use, or an empty + * string if this is not set. File names in this path will appear + * in the dialog, filtered according to the filter extensions. + * + * @return the directory path string + * + * @see #setFilterExtensions + */ +public String getFilterPath () { + return filterPath; +} + +int OFNHookProc (int hdlg, int uiMsg, int wParam, int lParam) { + switch (uiMsg) { + case OS.WM_NOTIFY: + OFNOTIFY ofn = new OFNOTIFY (); + OS.MoveMemory (ofn, lParam, OFNOTIFY.sizeof); + if (ofn.code is OS.CDN_SELCHANGE) { + int lResult = OS.SendMessage (ofn.hwndFrom, OS.CDM_GETSPEC, 0, 0); + if (lResult > 0) { + lResult += OS.MAX_PATH; + OPENFILENAME lpofn = new OPENFILENAME (); + OS.MoveMemory (lpofn, ofn.lpOFN, OPENFILENAME.sizeof); + if (lpofn.nMaxFile < lResult) { + int hHeap = OS.GetProcessHeap (); + int lpstrFile = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, lResult * TCHAR.sizeof); + if (lpstrFile !is 0) { + if (lpofn.lpstrFile !is 0) OS.HeapFree (hHeap, 0, lpofn.lpstrFile); + lpofn.lpstrFile = lpstrFile; + lpofn.nMaxFile = lResult; + OS.MoveMemory (ofn.lpOFN, lpofn, OPENFILENAME.sizeof); + } + } + } + } + break; + } + return 0; +} + +/** + * Makes the dialog visible and brings it to the front + * of the display. + * + * @return a string describing the absolute path of the first selected file, + * or null if the dialog was cancelled or an error occurred + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li> + * </ul> + */ +public String open () { + int hHeap = OS.GetProcessHeap (); + + /* Get the owner HWND for the dialog */ + int hwndOwner = 0; + if (parent !is null) hwndOwner = parent.handle; + + /* Convert the title and copy it into lpstrTitle */ + if (title is null) title = ""; + /* Use the character encoding for the default locale */ + TCHAR buffer3 = new TCHAR (0, title, true); + int byteCount3 = buffer3.length () * TCHAR.sizeof; + int lpstrTitle = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount3); + OS.MoveMemory (lpstrTitle, buffer3, byteCount3); + + /* Compute filters and copy into lpstrFilter */ + String strFilter = ""; + if (filterNames is null) filterNames = new String [0]; + if (filterExtensions is null) filterExtensions = new String [0]; + for (int i=0; i<filterExtensions.length; i++) { + String filterName = filterExtensions [i]; + if (i < filterNames.length) filterName = filterNames [i]; + strFilter = strFilter + filterName + '\0' + filterExtensions [i] + '\0'; + } + if (filterExtensions.length is 0) { + strFilter = strFilter + FILTER + '\0' + FILTER + '\0'; + } + /* Use the character encoding for the default locale */ + TCHAR buffer4 = new TCHAR (0, strFilter, true); + int byteCount4 = buffer4.length () * TCHAR.sizeof; + int lpstrFilter = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount4); + OS.MoveMemory (lpstrFilter, buffer4, byteCount4); + + /* Convert the fileName and filterName to C strings */ + if (fileName is null) fileName = ""; + /* Use the character encoding for the default locale */ + TCHAR name = new TCHAR (0, fileName, true); + + /* + * Copy the name into lpstrFile and ensure that the + * last byte is NULL and the buffer does not overrun. + */ + int nMaxFile = OS.MAX_PATH; + if ((style & DWT.MULTI) !is 0) nMaxFile = Math.max (nMaxFile, BUFFER_SIZE); + int byteCount = nMaxFile * TCHAR.sizeof; + int lpstrFile = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + int byteCountFile = Math.min (name.length () * TCHAR.sizeof, byteCount - TCHAR.sizeof); + OS.MoveMemory (lpstrFile, name, byteCountFile); + + /* + * Copy the path into lpstrInitialDir and ensure that + * the last byte is NULL and the buffer does not overrun. + */ + if (filterPath is null) filterPath = ""; + /* Use the character encoding for the default locale */ + TCHAR path = new TCHAR (0, filterPath.replace ('/', '\\'), true); + int byteCount5 = OS.MAX_PATH * TCHAR.sizeof; + int lpstrInitialDir = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount5); + int byteCountDir = Math.min (path.length () * TCHAR.sizeof, byteCount5 - TCHAR.sizeof); + OS.MoveMemory (lpstrInitialDir, path, byteCountDir); + + /* Create the file dialog struct */ + OPENFILENAME struct = new OPENFILENAME (); + struct.lStructSize = OPENFILENAME.sizeof; + struct.Flags = OS.OFN_HIDEREADONLY | OS.OFN_NOCHANGEDIR; + Callback callback = null; + if ((style & DWT.MULTI) !is 0) { + struct.Flags |= OS.OFN_ALLOWMULTISELECT | OS.OFN_EXPLORER; + if (!OS.IsWinCE && USE_HOOK) { + callback = new Callback (this, "OFNHookProc", 4); //$NON-NLS-1$ + int lpfnHook = callback.getAddress (); + if (lpfnHook is 0) DWT.error (DWT.ERROR_NO_MORE_CALLBACKS); + struct.lpfnHook = lpfnHook; + struct.Flags |= OS.OFN_ENABLEHOOK; + } + } + struct.hwndOwner = hwndOwner; + struct.lpstrTitle = lpstrTitle; + struct.lpstrFile = lpstrFile; + struct.nMaxFile = nMaxFile; + struct.lpstrInitialDir = lpstrInitialDir; + struct.lpstrFilter = lpstrFilter; + struct.nFilterIndex = 0; + + /* + * Set the default extension to an empty string. If the + * user fails to type an extension and this extension is + * empty, Windows uses the current value of the filter + * extension at the time that the dialog is closed. + */ + int lpstrDefExt = 0; + bool save = (style & DWT.SAVE) !is 0; + if (save) { + lpstrDefExt = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, TCHAR.sizeof); + struct.lpstrDefExt = lpstrDefExt; + } + + /* Make the parent shell be temporary modal */ + Shell oldModal = null; + Display display = parent.getDisplay (); + if ((style & (DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + oldModal = display.getModalDialogShell (); + display.setModalDialogShell (parent); + } + + /* + * Feature in Windows. For some reason, the WH_MSGFILTER filter + * does not run for GetSaveFileName() or GetOpenFileName(). The + * fix is to allow async messages to run in the WH_FOREGROUNDIDLE + * hook instead. + * + * Bug in Windows 98. For some reason, when certain operating + * system calls such as Shell_NotifyIcon(), GetOpenFileName() + * and GetSaveFileName() are made during the WH_FOREGROUNDIDLE + * hook, Windows hangs. The fix is to disallow async messages + * during WH_FOREGROUNDIDLE. + */ + bool oldRunMessagesInIdle = display.runMessagesInIdle; + display.runMessagesInIdle = !OS.IsWin95; + /* + * Open the dialog. If the open fails due to an invalid + * file name, use an empty file name and open it again. + */ + bool success = (save) ? OS.GetSaveFileName (struct) : OS.GetOpenFileName (struct); + switch (OS.CommDlgExtendedError ()) { + case OS.FNERR_INVALIDFILENAME: + OS.MoveMemory (lpstrFile, new TCHAR (0, "", true), TCHAR.sizeof); + success = (save) ? OS.GetSaveFileName (struct) : OS.GetOpenFileName (struct); + break; + case OS.FNERR_BUFFERTOOSMALL: + USE_HOOK = true; + break; + } + display.runMessagesInIdle = oldRunMessagesInIdle; + + /* Clear the temporary dialog modal parent */ + if ((style & (DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + display.setModalDialogShell (oldModal); + } + + /* Dispose the callback and reassign the buffer */ + if (callback !is null) callback.dispose (); + lpstrFile = struct.lpstrFile; + + /* Set the new path, file name and filter */ + fileNames = new String [0]; + String fullPath = null; + if (success) { + + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, struct.nMaxFile); + int byteCount1 = buffer.length () * TCHAR.sizeof; + OS.MoveMemory (buffer, lpstrFile, byteCount1); + + /* + * Bug in WinCE. For some reason, nFileOffset and nFileExtension + * are always zero on WinCE HPC. nFileOffset is always zero on + * WinCE PPC when using GetSaveFileName(). nFileOffset is correctly + * set on WinCE PPC when using OpenFileName(). The fix is to parse + * lpstrFile to calculate nFileOffset. + * + * Note: WinCE does not support multi-select file dialogs. + */ + int nFileOffset = struct.nFileOffset; + if (OS.IsWinCE && nFileOffset is 0) { + int index = 0; + while (index < buffer.length ()) { + int ch = buffer.tcharAt (index); + if (ch is 0) break; + if (ch is '\\') nFileOffset = index + 1; + index++; + } + } + if (nFileOffset > 0) { + + /* Use the character encoding for the default locale */ + TCHAR prefix = new TCHAR (0, nFileOffset - 1); + int byteCount2 = prefix.length () * TCHAR.sizeof; + OS.MoveMemory (prefix, lpstrFile, byteCount2); + filterPath = prefix.toString (0, prefix.length ()); + + /* + * Get each file from the buffer. Files are delimited + * by a NULL character with 2 NULL characters at the end. + */ + int count = 0; + fileNames = new String [(style & DWT.MULTI) !is 0 ? 4 : 1]; + int start = nFileOffset; + do { + int end = start; + while (end < buffer.length () && buffer.tcharAt (end) !is 0) end++; + String string = buffer.toString (start, end - start); + start = end; + if (count is fileNames.length) { + String [] newFileNames = new String [fileNames.length + 4]; + System.arraycopy (fileNames, 0, newFileNames, 0, fileNames.length); + fileNames = newFileNames; + } + fileNames [count++] = string; + if ((style & DWT.MULTI) is 0) break; + start++; + } while (start < buffer.length () && buffer.tcharAt (start) !is 0); + + if (fileNames.length > 0) fileName = fileNames [0]; + String separator = ""; + int length = filterPath.length (); + if (length > 0 && filterPath.charAt (length - 1) !is '\\') { + separator = "\\"; + } + fullPath = filterPath + separator + fileName; + if (count < fileNames.length) { + String [] newFileNames = new String [count]; + System.arraycopy (fileNames, 0, newFileNames, 0, count); + fileNames = newFileNames; + } + } + } + + /* Free the memory that was allocated. */ + OS.HeapFree (hHeap, 0, lpstrFile); + OS.HeapFree (hHeap, 0, lpstrFilter); + OS.HeapFree (hHeap, 0, lpstrInitialDir); + OS.HeapFree (hHeap, 0, lpstrTitle); + if (lpstrDefExt !is 0) OS.HeapFree (hHeap, 0, lpstrDefExt); + + /* + * This code is intentionally commented. On some + * platforms, the owner window is repainted right + * away when a dialog window exits. This behavior + * is currently unspecified. + */ +// if (hwndOwner !is 0) OS.UpdateWindow (hwndOwner); + + /* Answer the full path or null */ + return fullPath; +} + +/** + * Set the initial filename which the dialog will + * select by default when opened to the argument, + * which may be null. The name will be prefixed with + * the filter path when one is supplied. + * + * @param string the file name + */ +public void setFileName (String string) { + fileName = string; +} + +/** + * Set the file extensions which the dialog will + * use to filter the files it shows to the argument, + * which may be null. + * <p> + * The strings are platform specific. For example, on + * Windows, an extension filter string is typically of + * the form "*.extension", where "*.*" matches all files. + * </p> + * + * @param extensions the file extension filter + * + * @see #setFilterNames to specify the user-friendly + * names corresponding to the extensions + */ +public void setFilterExtensions (String [] extensions) { + filterExtensions = extensions; +} + +/** + * Sets the the names that describe the filter extensions + * which the dialog will use to filter the files it shows + * to the argument, which may be null. + * <p> + * Each name is a user-friendly short description shown for + * its corresponding filter. The <code>names</code> array must + * be the same length as the <code>extensions</code> array. + * </p> + * + * @param names the list of filter names, or null for no filter names + * + * @see #setFilterExtensions + */ +public void setFilterNames (String [] names) { + filterNames = names; +} + +/** + * Sets the directory path that the dialog will use + * to the argument, which may be null. File names in this + * path will appear in the dialog, filtered according + * to the filter extensions. If the string is null, + * then the operating system's default filter path + * will be used. + * <p> + * Note that the path string is platform dependent. + * For convenience, either '/' or '\' can be used + * as a path separator. + * </p> + * + * @param string the directory path + * + * @see #setFilterExtensions + */ +public void setFilterPath (String string) { + filterPath = string; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/FontDialog.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,311 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.FontDialog; + +import dwt.widgets.Dialog; +import dwt.widgets.Shell; + +class FontDialog : Dialog { + public this (Shell parent) { + this (parent, 0); + } + public this (Shell parent, int style) { + super (parent, style); + } +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Font; +import dwt.graphics.FontData; +import dwt.graphics.PaletteData; +import dwt.graphics.RGB; +import dwt.internal.win32.CHOOSEFONT; +import dwt.internal.win32.LOGFONT; +import dwt.internal.win32.LOGFONTA; +import dwt.internal.win32.LOGFONTW; +import dwt.internal.win32.OS; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; + +/** + * Instances of this class allow the user to select a font + * from all available fonts in the system. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ +public class FontDialog extends Dialog { + FontData fontData; + RGB rgb; + +/** + * Constructs a new instance of this class given only its parent. + * + * @param parent a shell which will be the parent of the new instance + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public FontDialog (Shell parent) { + this (parent, DWT.PRIMARY_MODAL); +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a shell which will be the parent of the new instance + * @param style the style of dialog to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public FontDialog (Shell parent, int style) { + super (parent, style); + checkSubclass (); +} + +/** + * Returns a FontData object describing the font that was + * selected in the dialog, or null if none is available. + * + * @return the FontData for the selected font, or null + * @deprecated use #getFontList () + */ +public FontData getFontData () { + return fontData; +} + +/** + * Returns a FontData set describing the font that was + * selected in the dialog, or null if none is available. + * + * @return the FontData for the selected font, or null + * @since 2.1.1 + */ +public FontData [] getFontList () { + if (fontData is null) return null; + FontData [] result = new FontData [1]; + result [0] = fontData; + return result; +} + +/** + * Returns an RGB describing the color that was selected + * in the dialog, or null if none is available. + * + * @return the RGB value for the selected color, or null + * + * @see PaletteData#getRGBs + * + * @since 2.1 + */ +public RGB getRGB () { + return rgb; +} + +/** + * Makes the dialog visible and brings it to the front + * of the display. + * + * @return a FontData object describing the font that was selected, + * or null if the dialog was cancelled or an error occurred + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li> + * </ul> + */ +public FontData open () { + if (OS.IsWinCE) DWT.error (DWT.ERROR_NOT_IMPLEMENTED); + + /* Get the owner HWND for the dialog */ + int hwndOwner = 0; + if (parent !is null) hwndOwner = parent.handle; + + /* Open the dialog */ + int hHeap = OS.GetProcessHeap (); + CHOOSEFONT lpcf = new CHOOSEFONT (); + lpcf.lStructSize = CHOOSEFONT.sizeof; + lpcf.hwndOwner = hwndOwner; + lpcf.Flags = OS.CF_SCREENFONTS | OS.CF_EFFECTS; + int lpLogFont = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, LOGFONT.sizeof); + if (fontData !is null && fontData.data !is null) { + LOGFONT logFont = fontData.data; + int lfHeight = logFont.lfHeight; + int hDC = OS.GetDC (0); + int pixels = -(int)(0.5f + (fontData.height * OS.GetDeviceCaps(hDC, OS.LOGPIXELSY) / 72)); + OS.ReleaseDC (0, hDC); + logFont.lfHeight = pixels; + lpcf.Flags |= OS.CF_INITTOLOGFONTSTRUCT; + OS.MoveMemory (lpLogFont, logFont, LOGFONT.sizeof); + logFont.lfHeight = lfHeight; + } + lpcf.lpLogFont = lpLogFont; + if (rgb !is null) { + int red = rgb.red & 0xFF; + int green = (rgb.green << 8) & 0xFF00; + int blue = (rgb.blue << 16) & 0xFF0000; + lpcf.rgbColors = red | green | blue; + } + + /* Make the parent shell be temporary modal */ + Shell oldModal = null; + Display display = null; + if ((style & (DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + display = parent.getDisplay (); + oldModal = display.getModalDialogShell (); + display.setModalDialogShell (parent); + } + + /* Open the dialog */ + bool success = OS.ChooseFont (lpcf); + + /* Clear the temporary dialog modal parent */ + if ((style & (DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + display.setModalDialogShell (oldModal); + } + + /* Compute the result */ + if (success) { + LOGFONT logFont = OS.IsUnicode ? (LOGFONT) new LOGFONTW () : new LOGFONTA (); + OS.MoveMemory (logFont, lpLogFont, LOGFONT.sizeof); + + /* + * This will not work on multiple screens or + * for printing. Should use DC for the proper device. + */ + int hDC = OS.GetDC(0); + int logPixelsY = OS.GetDeviceCaps(hDC, OS.LOGPIXELSY); + int pixels = 0; + if (logFont.lfHeight > 0) { + /* + * Feature in Windows. If the lfHeight of the LOGFONT structure + * is positive, the lfHeight measures the height of the entire + * cell, including internal leading, in logical units. Since the + * height of a font in points does not include the internal leading, + * we must subtract the internal leading, which requires a TEXTMETRIC, + * which in turn requires font creation. + */ + int hFont = OS.CreateFontIndirect(logFont); + int oldFont = OS.SelectObject(hDC, hFont); + TEXTMETRIC lptm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics(hDC, lptm); + OS.SelectObject(hDC, oldFont); + OS.DeleteObject(hFont); + pixels = logFont.lfHeight - lptm.tmInternalLeading; + } else { + pixels = -logFont.lfHeight; + } + OS.ReleaseDC(0, hDC); + + float points = pixels * 72f /logPixelsY; + fontData = FontData.win32_new (logFont, points); + int red = lpcf.rgbColors & 0xFF; + int green = (lpcf.rgbColors >> 8) & 0xFF; + int blue = (lpcf.rgbColors >> 16) & 0xFF; + rgb = new RGB (red, green, blue); + } + + /* Free the OS memory */ + if (lpLogFont !is 0) OS.HeapFree (hHeap, 0, lpLogFont); + + /* + * This code is intentionally commented. On some + * platforms, the owner window is repainted right + * away when a dialog window exits. This behavior + * is currently unspecified. + */ +// if (hwndOwner !is 0) OS.UpdateWindow (hwndOwner); + + if (!success) return null; + return fontData; +} + +/** + * Sets a FontData object describing the font to be + * selected by default in the dialog, or null to let + * the platform choose one. + * + * @param fontData the FontData to use initially, or null + * @deprecated use #setFontList (FontData []) + */ +public void setFontData (FontData fontData) { + this.fontData = fontData; +} + +/** + * Sets the set of FontData objects describing the font to + * be selected by default in the dialog, or null to let + * the platform choose one. + * + * @param fontData the set of FontData objects to use initially, or null + * to let the platform select a default when open() is called + * + * @see Font#getFontData + * + * @since 2.1.1 + */ +public void setFontList (FontData [] fontData) { + if (fontData !is null && fontData.length > 0) { + this.fontData = fontData [0]; + } else { + this.fontData = null; + } +} + +/** + * Sets the RGB describing the color to be selected by default + * in the dialog, or null to let the platform choose one. + * + * @param rgb the RGB value to use initially, or null to let + * the platform select a default when open() is called + * + * @see PaletteData#getRGBs + * + * @since 2.1 + */ +public void setRGB (RGB rgb) { + this.rgb = rgb; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Group.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,505 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Group; + +import dwt.widgets.Composite; +class Group : Composite { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Font; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; +import dwt.internal.win32.WINDOWPOS; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class provide an etched border + * with an optional title. + * <p> + * Shadow styles are hints and may not be honoured + * by the platform. To create a group with the + * default shadow style for the platform, do not + * specify a shadow style. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>SHADOW_ETCHED_IN, SHADOW_ETCHED_OUT, SHADOW_IN, SHADOW_OUT, SHADOW_NONE</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of the above styles may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class Group extends Composite { + String text = ""; + static final int CLIENT_INSET = 3; + static final int GroupProc; + static final TCHAR GroupClass = new TCHAR (0, OS.IsWinCE ? "BUTTON" : "SWT_GROUP", true); + static { + /* + * Feature in Windows. The group box window class + * uses the CS_HREDRAW and CS_VREDRAW style bits to + * force a full redraw of the control and all children + * when resized. This causes flashing. The fix is to + * register a new window class without these bits and + * implement special code that damages only the control. + * + * Feature in WinCE. On certain devices, defining + * a new window class which looks like BUTTON causes + * CreateWindowEx() to crash. The workaround is to use + * the class Button directly. + */ + WNDCLASS lpWndClass = new WNDCLASS (); + if (OS.IsWinCE) { + OS.GetClassInfo (0, GroupClass, lpWndClass); + GroupProc = lpWndClass.lpfnWndProc; + } else { + TCHAR WC_BUTTON = new TCHAR (0, "BUTTON", true); + OS.GetClassInfo (0, WC_BUTTON, lpWndClass); + GroupProc = lpWndClass.lpfnWndProc; + int hInstance = OS.GetModuleHandle (null); + if (!OS.GetClassInfo (hInstance, GroupClass, lpWndClass)) { + int hHeap = OS.GetProcessHeap (); + lpWndClass.hInstance = hInstance; + lpWndClass.style &= ~(OS.CS_HREDRAW | OS.CS_VREDRAW); + int byteCount = GroupClass.length () * TCHAR.sizeof; + int lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpszClassName, GroupClass, byteCount); + lpWndClass.lpszClassName = lpszClassName; + OS.RegisterClass (lpWndClass); + OS.HeapFree (hHeap, 0, lpszClassName); + } + } + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#SHADOW_ETCHED_IN + * @see DWT#SHADOW_ETCHED_OUT + * @see DWT#SHADOW_IN + * @see DWT#SHADOW_OUT + * @see DWT#SHADOW_NONE + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Group (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + /* + * Feature in Windows. When the user clicks on the group + * box label, the group box takes focus. This is unwanted. + * The fix is to avoid calling the group box window proc. + */ + switch (msg) { + case OS.WM_LBUTTONDOWN: + case OS.WM_LBUTTONDBLCLK: + return OS.DefWindowProc (hwnd, msg, wParam, lParam); + } + return OS.CallWindowProc (GroupProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + style |= DWT.NO_FOCUS; + /* + * Even though it is legal to create this widget + * with scroll bars, they serve no useful purpose + * because they do not automatically scroll the + * widget's client area. The fix is to clear + * the DWT style. + */ + return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + Point size = super.computeSize (wHint, hHint, changed); + int length = text.length (); + if (length !is 0) { + /* + * Bug in Windows. When a group control is right-to-left and + * is disabled, the first pixel of the text is clipped. The + * fix is to add a space to both sides of the text. Note that + * the work around must run all the time to stop the preferred + * size from changing when a group is enabled and disabled. + */ + String string = text; + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + string = " " + string + " "; + } + } + /* + * If the group has text, and the text is wider than the + * client area, pad the width so the text is not clipped. + */ + TCHAR buffer = new TCHAR (getCodePage (), string, true); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE; + OS.DrawText (hDC, buffer, -1, rect, flags); + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + size.x = Math.max (size.x, rect.right - rect.left + CLIENT_INSET * 6); + } + return size; +} + +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + Rectangle trim = super.computeTrim (x, y, width, height); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, tm); + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + trim.x -= CLIENT_INSET; + trim.y -= tm.tmHeight; + trim.width += CLIENT_INSET * 2; + trim.height += tm.tmHeight + CLIENT_INSET; + return trim; +} + +void createHandle () { + super.createHandle (); + state |= DRAW_BACKGROUND; + state &= ~CANVAS; +} + +void enableWidget (bool enabled) { + super.enableWidget (enabled); + /* + * Bug in Windows. When a group control is right-to-left and + * is disabled, the first pixel of the text is clipped. The + * fix is to add a space to both sides of the text. + */ + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + String string = enabled || text.length() is 0 ? text : " " + text + " "; + TCHAR buffer = new TCHAR (getCodePage (), string, true); + OS.SetWindowText (handle, buffer); + } + } +} + +public Rectangle getClientArea () { + checkWidget (); + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, tm); + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + int x = CLIENT_INSET, y = tm.tmHeight; + int width = Math.max (0, rect.right - CLIENT_INSET * 2); + int height = Math.max (0, rect.bottom - y - CLIENT_INSET); + return new Rectangle (x, y, width, height); +} + +String getNameText () { + return getText (); +} + +/** + * Returns the receiver's text, which is the string that the + * is used as the <em>title</em>. If the text has not previously + * been set, returns an empty string. + * + * @return the text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText () { + checkWidget (); + return text; +} + +bool mnemonicHit (char key) { + return setFocus (); +} + +bool mnemonicMatch (char key) { + char mnemonic = findMnemonic (getText ()); + if (mnemonic is '\0') return false; + return Character.toUpperCase (key) is Character.toUpperCase (mnemonic); +} + +void releaseWidget () { + super.releaseWidget (); + text = null; +} + +public void setFont (Font font) { + checkWidget (); + Rectangle oldRect = getClientArea (); + super.setFont (font); + Rectangle newRect = getClientArea (); + if (!oldRect.equals (newRect)) sendResize (); +} + +/** + * Sets the receiver's text, which is the string that will + * be displayed as the receiver's <em>title</em>, to the argument, + * which may not be null. The string may include the mnemonic character. + * </p> + * Mnemonics are indicated by an '&' that causes the next + * character to be the mnemonic. When the user presses a + * key sequence that matches the mnemonic, focus is assigned + * to the first child of the group. On most platforms, the + * mnemonic appears underlined but may be emphasised in a + * platform specific manner. The mnemonic indicator character + * '&' can be escaped by doubling it in the string, causing + * a single '&' to be displayed. + * </p> + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + text = string; + /* + * Bug in Windows. When a group control is right-to-left and + * is disabled, the first pixel of the text is clipped. The + * fix is to add a space to both sides of the text. + */ + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + if (!OS.IsWindowEnabled (handle)) { + if (string.length() !is 0) string = " " + string + " "; + } + } + } + TCHAR buffer = new TCHAR (getCodePage (), string, true); + OS.SetWindowText (handle, buffer); +} + +int widgetStyle () { + /* + * Bug in Windows. When GetDCEx() is called with DCX_INTERSECTUPDATE, + * the HDC that is returned does not include the current update region. + * This was confirmed under DEBUG Windows when GetDCEx() complained about + * invalid flags. Therefore, it is not easily possible to get an HDC from + * outside of WM_PAINT that includes the current damage and clips children. + * Because the receiver has children and draws a frame and label, it is + * necessary that the receiver always draw clipped, in the current damaged + * area. The fix is to force the receiver to be fully clipped by including + * WS_CLIPCHILDREN and WS_CLIPSIBLINGS in the default style bits. + */ + return super.widgetStyle () | OS.BS_GROUPBOX | OS.WS_CLIPCHILDREN | OS.WS_CLIPSIBLINGS; +} + +TCHAR windowClass () { + return GroupClass; +} + +int windowProc () { + return GroupProc; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. Group boxes do not erase + * the background before drawing. The fix is to + * fill the background. + */ + drawBackground (wParam); + return LRESULT.ONE; +} + +LRESULT WM_NCHITTEST (int wParam, int lParam) { + LRESULT result = super.WM_NCHITTEST (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. The window proc for the group box + * returns HTTRANSPARENT indicating that mouse messages + * should not be delivered to the receiver and any children. + * Normally, group boxes in Windows do not have children and + * this is the correct behavior for this case. Because we + * allow children, answer HTCLIENT to allow mouse messages + * to be delivered to the children. + */ + int code = callWindowProc (handle, OS.WM_NCHITTEST, wParam, lParam); + if (code is OS.HTTRANSPARENT) code = OS.HTCLIENT; + return new LRESULT (code); +} + +LRESULT WM_MOUSEMOVE (int wParam, int lParam) { + LRESULT result = super.WM_MOUSEMOVE (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. In version 6.00 of COMCTL32.DLL, + * every time the mouse moves, the group title redraws. + * This only happens when WM_NCHITTEST returns HTCLIENT. + * The fix is to avoid calling the group window proc. + */ + return LRESULT.ZERO; +} + +LRESULT WM_PRINTCLIENT (int wParam, int lParam) { + LRESULT result = super.WM_PRINTCLIENT (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. In version 6.00 of COMCTL32.DLL, + * when WM_PRINTCLIENT is sent from a child BS_GROUP + * control to a parent BS_GROUP, the parent BS_GROUP + * clears the font from the HDC. Normally, group boxes + * in Windows do not have children so this behavior is + * undefined. When the parent of a BS_GROUP is not a + * BS_GROUP, there is no problem. The fix is to save + * and restore the current font. + */ + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + int nSavedDC = OS.SaveDC (wParam); + int code = callWindowProc (handle, OS.WM_PRINTCLIENT, wParam, lParam); + OS.RestoreDC (wParam, nSavedDC); + return new LRESULT (code); + } + return result; +} + +LRESULT WM_UPDATEUISTATE (int wParam, int lParam) { + LRESULT result = super.WM_UPDATEUISTATE (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. When WM_UPDATEUISTATE is sent to + * a group, it sends WM_CTLCOLORBTN to get the foreground + * and background. If drawing happens in WM_CTLCOLORBTN, + * it will overwrite the contents of the control. The + * fix is draw the group without drawing the background + * and avoid the group window proc. + */ + bool redraw = findImageControl () !is null; + if (!redraw) { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + redraw = findThemeControl () !is null; + } + } + if (!redraw) redraw = findBackgroundControl () !is null; + } + if (redraw) { + OS.InvalidateRect (handle, null, false); + int code = OS.DefWindowProc (handle, OS.WM_UPDATEUISTATE, wParam, lParam); + return new LRESULT (code); + } + return result; +} + +LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) { + LRESULT result = super.WM_WINDOWPOSCHANGING (wParam, lParam); + if (result !is null) return result; + /* + * Invalidate the portion of the group widget that needs to + * be redrawn. Note that for some reason, invalidating the + * group from inside WM_SIZE causes pixel corruption for + * radio button children. + */ + if (OS.IsWinCE) return result; + if (!OS.IsWindowVisible (handle)) return result; + WINDOWPOS lpwp = new WINDOWPOS (); + OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof); + if ((lpwp.flags & (OS.SWP_NOSIZE | OS.SWP_NOREDRAW)) !is 0) { + return result; + } + RECT rect = new RECT (); + OS.SetRect (rect, 0, 0, lpwp.cx, lpwp.cy); + OS.SendMessage (handle, OS.WM_NCCALCSIZE, 0, rect); + int newWidth = rect.right - rect.left; + int newHeight = rect.bottom - rect.top; + OS.GetClientRect (handle, rect); + int oldWidth = rect.right - rect.left; + int oldHeight = rect.bottom - rect.top; + if (newWidth is oldWidth && newHeight is oldHeight) { + return result; + } + if (newWidth !is oldWidth) { + int left = oldWidth; + if (newWidth < oldWidth) left = newWidth; + OS.SetRect (rect, left - CLIENT_INSET, 0, newWidth, newHeight); + OS.InvalidateRect (handle, rect, true); + } + if (newHeight !is oldHeight) { + int bottom = oldHeight; + if (newHeight < oldHeight) bottom = newHeight; + if (newWidth < oldWidth) oldWidth -= CLIENT_INSET; + OS.SetRect (rect, 0, bottom - CLIENT_INSET, oldWidth, newHeight); + OS.InvalidateRect (handle, rect, true); + } + return result; +} +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Item.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,187 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Item; + + +import dwt.widgets.Widget; +import dwt.DWT; +import dwt.graphics.Image; + +/** + * This class is the abstract superclass of all non-windowed + * user interface objects that occur within specific controls. + * For example, a tree will contain tree items. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + */ + +public abstract class Item : Widget { + char[] text; + Image image; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * The item is added to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a widget which will be the parent of the new instance (cannot be null) + * @param style the style of item to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + * + * @see DWT + * @see Widget#getStyle + */ +public this (Widget parent, int style) { + super (parent, style); + text = ""; +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance, + * and the index at which to place it in the items maintained + * by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a widget which will be the parent of the new instance (cannot be null) + * @param style the style of item to construct + * @param index the zero-relative index at which to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + * + * @see DWT + * @see Widget#getStyle + */ +public this (Widget parent, int style, int index) { + this (parent, style); +} + +protected void checkSubclass () { + /* Do Nothing - Subclassing is allowed */ +} + +/** + * Returns the receiver's image if it has one, or null + * if it does not. + * + * @return the receiver's image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Image getImage () { + checkWidget (); + return image; +} + +char[] getNameText () { + return getText (); +} + +/** + * Returns the receiver's text, which will be an empty + * string if it has never been set. + * + * @return the receiver's text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public char[] getText () { + checkWidget(); + return text; +} + +void releaseWidget () { + super.releaseWidget (); + text = null; + image = null; +} + +/** + * Sets the receiver's image to the argument, which may be + * null indicating that no image should be displayed. + * + * @param image the image to display on the receiver (may be null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (Image image) { + checkWidget (); + if (image !is null && image.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + this.image = image; +} + +/** + * Sets the receiver's text. + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (char[] string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + text = string; +} + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Label.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,696 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Label; + +import dwt.widgets.Control; +import dwt.widgets.Composite; +class Label : Control { + this (Composite parent, int style) ; +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.DRAWITEMSTRUCT; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.PAINTSTRUCT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class represent a non-selectable + * user interface object that displays a string or image. + * When SEPARATOR is specified, displays a single + * vertical or horizontal line. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>SEPARATOR, HORIZONTAL, VERTICAL</dd> + * <dd>SHADOW_IN, SHADOW_OUT, SHADOW_NONE</dd> + * <dd>CENTER, LEFT, RIGHT, WRAP</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of SHADOW_IN, SHADOW_OUT and SHADOW_NONE may be specified. + * SHADOW_NONE is a HINT. Only one of HORIZONTAL and VERTICAL may be specified. + * Only one of CENTER, LEFT and RIGHT may be specified. + * </p><p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ +public class Label extends Control { + String text = ""; + Image image; + static final int MARGIN = 4; + static final bool IMAGE_AND_TEXT = false; + static final int LabelProc; + static final TCHAR LabelClass = new TCHAR (0, "STATIC", true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, LabelClass, lpWndClass); + LabelProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#SEPARATOR + * @see DWT#HORIZONTAL + * @see DWT#VERTICAL + * @see DWT#SHADOW_IN + * @see DWT#SHADOW_OUT + * @see DWT#SHADOW_NONE + * @see DWT#CENTER + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#WRAP + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Label (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (LabelProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + style |= DWT.NO_FOCUS; + if ((style & DWT.SEPARATOR) !is 0) { + style = checkBits (style, DWT.VERTICAL, DWT.HORIZONTAL, 0, 0, 0, 0); + return checkBits (style, DWT.SHADOW_OUT, DWT.SHADOW_IN, DWT.SHADOW_NONE, 0, 0, 0); + } + return checkBits (style, DWT.LEFT, DWT.CENTER, DWT.RIGHT, 0, 0, 0); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0, border = getBorderWidth (); + if ((style & DWT.SEPARATOR) !is 0) { + int lineWidth = OS.GetSystemMetrics (OS.SM_CXBORDER); + if ((style & DWT.HORIZONTAL) !is 0) { + width = DEFAULT_WIDTH; height = lineWidth * 2; + } else { + width = lineWidth * 2; height = DEFAULT_HEIGHT; + } + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + width += border * 2; height += border * 2; + return new Point (width, height); + } + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bool drawText = true; + bool drawImage = (bits & OS.SS_OWNERDRAW) is OS.SS_OWNERDRAW; + if (drawImage) { + if (image !is null) { + Rectangle rect = image.getBounds(); + width += rect.width; + height += rect.height; + if (IMAGE_AND_TEXT) { + if (text.length () !is 0) width += MARGIN; + } else { + drawText = false; + } + } + } + if (drawText) { + int hDC = OS.GetDC (handle); + int newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + int oldFont = OS.SelectObject (hDC, newFont); + int length = OS.GetWindowTextLength (handle); + if (length is 0) { + TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, tm); + height = Math.max (height, tm.tmHeight); + } else { + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_EDITCONTROL | OS.DT_EXPANDTABS; + if ((style & DWT.WRAP) !is 0 && wHint !is DWT.DEFAULT) { + flags |= OS.DT_WORDBREAK; + rect.right = Math.max (0, wHint - width); + } + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (handle, buffer, length + 1); + OS.DrawText (hDC, buffer, length, rect, flags); + width += rect.right - rect.left; + height = Math.max (height, rect.bottom - rect.top); + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + } + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + width += border * 2; + height += border * 2; + /* + * Feature in WinCE PPC. Text labels have a trim + * of one pixel wide on the right and left side. + * The fix is to increase the width to include + * this trim. + */ + if (OS.IsWinCE && !drawImage) width += 2; + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + state |= THEME_BACKGROUND; +} + +/** + * Returns a value which describes the position of the + * text or image in the receiver. The value will be one of + * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> + * unless the receiver is a <code>SEPARATOR</code> label, in + * which case, <code>NONE</code> is returned. + * + * @return the alignment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getAlignment () { + checkWidget (); + if ((style & DWT.SEPARATOR) !is 0) return 0; + if ((style & DWT.LEFT) !is 0) return DWT.LEFT; + if ((style & DWT.CENTER) !is 0) return DWT.CENTER; + if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; + return DWT.LEFT; +} + +/** + * Returns the receiver's image if it has one, or null + * if it does not. + * + * @return the receiver's image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Image getImage () { + checkWidget (); + return image; +} + +String getNameText () { + return getText (); +} + +/** + * Returns the receiver's text, which will be an empty + * string if it has never been set or if the receiver is + * a <code>SEPARATOR</code> label. + * + * @return the receiver's text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText () { + checkWidget (); + if ((style & DWT.SEPARATOR) !is 0) return ""; + return text; +} + +bool mnemonicHit (char key) { + Composite control = this.parent; + while (control !is null) { + Control [] children = control._getChildren (); + int index = 0; + while (index < children.length) { + if (children [index] is this) break; + index++; + } + index++; + if (index < children.length) { + if (children [index].setFocus ()) return true; + } + control = control.parent; + } + return false; +} + +bool mnemonicMatch (char key) { + char mnemonic = findMnemonic (getText ()); + if (mnemonic is '\0') return false; + return Character.toUpperCase (key) is Character.toUpperCase (mnemonic); +} + +void releaseWidget () { + super.releaseWidget (); + text = null; + image = null; +} + +/** + * Controls how text and images will be displayed in the receiver. + * The argument should be one of <code>LEFT</code>, <code>RIGHT</code> + * or <code>CENTER</code>. If the receiver is a <code>SEPARATOR</code> + * label, the argument is ignored and the alignment is not changed. + * + * @param alignment the new alignment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setAlignment (int alignment) { + checkWidget (); + if ((style & DWT.SEPARATOR) !is 0) return; + if ((alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER)) is 0) return; + style &= ~(DWT.LEFT | DWT.RIGHT | DWT.CENTER); + style |= alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER); + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.SS_OWNERDRAW) !is OS.SS_OWNERDRAW) { + bits &= ~(OS.SS_LEFTNOWORDWRAP | OS.SS_CENTER | OS.SS_RIGHT); + if ((style & DWT.LEFT) !is 0) { + if ((style & DWT.WRAP) !is 0) { + bits |= OS.SS_LEFT; + } else { + bits |= OS.SS_LEFTNOWORDWRAP; + } + } + if ((style & DWT.CENTER) !is 0) bits |= OS.SS_CENTER; + if ((style & DWT.RIGHT) !is 0) bits |= OS.SS_RIGHT; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + } + OS.InvalidateRect (handle, null, true); +} + +/** + * Sets the receiver's image to the argument, which may be + * null indicating that no image should be displayed. + * + * @param image the image to display on the receiver (may be null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (Image image) { + checkWidget (); + if ((style & DWT.SEPARATOR) !is 0) return; + if (image !is null && image.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + this.image = image; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.SS_OWNERDRAW) !is OS.SS_OWNERDRAW) { + bits &= ~(OS.SS_LEFTNOWORDWRAP | OS.SS_CENTER | OS.SS_RIGHT); + bits |= OS.SS_OWNERDRAW; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + } + OS.InvalidateRect (handle, null, true); +} + +/** + * Sets the receiver's text. + * <p> + * This method sets the widget label. The label may include + * the mnemonic character and line delimiters. + * </p> + * <p> + * Mnemonics are indicated by an '&' that causes the next + * character to be the mnemonic. When the user presses a + * key sequence that matches the mnemonic, focus is assigned + * to the control that follows the label. On most platforms, + * the mnemonic appears underlined but may be emphasised in a + * platform specific manner. The mnemonic indicator character + * '&' can be escaped by doubling it in the string, causing + * a single '&' to be displayed. + * </p> + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if ((style & DWT.SEPARATOR) !is 0) return; + /* + * Feature in Windows. For some reason, SetWindowText() for + * static controls redraws the control, even when the text has + * has not changed. The fix is to check for this case and do + * nothing. + */ + if (string.equals (text)) return; + text = string; + if (image is null || !IMAGE_AND_TEXT) { + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits; + newBits &= ~OS.SS_OWNERDRAW; + if ((style & DWT.LEFT) !is 0) { + if ((style & DWT.WRAP) !is 0) { + newBits |= OS.SS_LEFT; + } else { + newBits |= OS.SS_LEFTNOWORDWRAP; + } + } + if ((style & DWT.CENTER) !is 0) newBits |= OS.SS_CENTER; + if ((style & DWT.RIGHT) !is 0) newBits |= OS.SS_RIGHT; + if (oldBits !is newBits) OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + } + string = Display.withCrLf (string); + TCHAR buffer = new TCHAR (getCodePage (), string, true); + OS.SetWindowText (handle, buffer); + /* + * Bug in Windows. For some reason, the HBRUSH that + * is returned from WM_CTRLCOLOR is misaligned when + * the label uses it to draw. If the brush is a solid + * color, this does not matter. However, if the brush + * contains an image, the image is misaligned. The + * fix is to draw the background in WM_ERASEBKGND. + */ + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + if (findImageControl () !is null) OS.InvalidateRect (handle, null, true); + } +} + +int widgetExtStyle () { + int bits = super.widgetExtStyle () & ~OS.WS_EX_CLIENTEDGE; + if ((style & DWT.BORDER) !is 0) return bits | OS.WS_EX_STATICEDGE; + return bits; +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.SS_NOTIFY; + if ((style & DWT.SEPARATOR) !is 0) return bits | OS.SS_OWNERDRAW; + if (OS.WIN32_VERSION >= OS.VERSION (5, 0)) { + if ((style & DWT.WRAP) !is 0) bits |= OS.SS_EDITCONTROL; + } + if ((style & DWT.CENTER) !is 0) return bits | OS.SS_CENTER; + if ((style & DWT.RIGHT) !is 0) return bits | OS.SS_RIGHT; + if ((style & DWT.WRAP) !is 0) return bits | OS.SS_LEFT; + return bits | OS.SS_LEFTNOWORDWRAP; +} + +TCHAR windowClass () { + return LabelClass; +} + +int windowProc () { + return LabelProc; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + if (result !is null) return result; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.SS_OWNERDRAW) is OS.SS_OWNERDRAW) { + return LRESULT.ONE; + } + /* + * Bug in Windows. For some reason, the HBRUSH that + * is returned from WM_CTRLCOLOR is misaligned when + * the label uses it to draw. If the brush is a solid + * color, this does not matter. However, if the brush + * contains an image, the image is misaligned. The + * fix is to draw the background in WM_ERASEBKGND. + */ + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + if (findImageControl () !is null) { + drawBackground (wParam); + return LRESULT.ONE; + } + } + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + if (isDisposed ()) return result; + if ((style & DWT.SEPARATOR) !is 0) { + OS.InvalidateRect (handle, null, true); + return result; + } + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.SS_OWNERDRAW) is OS.SS_OWNERDRAW) { + OS.InvalidateRect (handle, null, true); + return result; + } + /* + * Bug in Windows. For some reason, a label with + * style SS_LEFT, SS_CENTER or SS_RIGHT does not + * redraw the text in the new position when resized. + * Note that SS_LEFTNOWORDWRAP does not have the + * problem. The fix is to force the redraw. + */ + if ((bits & OS.SS_LEFTNOWORDWRAP) !is OS.SS_LEFTNOWORDWRAP) { + OS.InvalidateRect (handle, null, true); + return result; + } + return result; +} + +LRESULT WM_UPDATEUISTATE (int wParam, int lParam) { + LRESULT result = super.WM_UPDATEUISTATE (wParam, lParam); + /* + * Feature in Windows. When WM_UPDATEUISTATE is sent to + * a static control, it sends WM_CTLCOLORSTATIC to get the + * foreground and background. If any drawing happens in + * WM_CTLCOLORSTATIC, it overwrites the contents of the control. + * The fix is draw the static without drawing the background + * and avoid the static window proc. + */ + bool redraw = findImageControl () !is null; + if (!redraw) { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + redraw = findThemeControl () !is null; + } + } + } + if (redraw) { + OS.InvalidateRect (handle, null, false); + int code = OS.DefWindowProc (handle, OS.WM_UPDATEUISTATE, wParam, lParam); + return new LRESULT (code); + } + return result; +} + +LRESULT wmColorChild (int wParam, int lParam) { + /* + * Bug in Windows. For some reason, the HBRUSH that + * is returned from WM_CTRLCOLOR is misaligned when + * the label uses it to draw. If the brush is a solid + * color, this does not matter. However, if the brush + * contains an image, the image is misaligned. The + * fix is to draw the background in WM_ERASEBKGND. + */ + LRESULT result = super.wmColorChild (wParam, lParam); + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.SS_OWNERDRAW) !is OS.SS_OWNERDRAW) { + if (findImageControl () !is null) { + OS.SetBkMode (wParam, OS.TRANSPARENT); + return new LRESULT (OS.GetStockObject (OS.NULL_BRUSH)); + } + } + } + return result; +} + +LRESULT WM_PAINT (int wParam, int lParam) { + if (OS.IsWinCE) { + bool drawImage = image !is null; + bool drawSeparator = (style & DWT.SEPARATOR) !is 0 && (style & DWT.SHADOW_NONE) is 0; + if (drawImage || drawSeparator) { + LRESULT result = null; + PAINTSTRUCT ps = new PAINTSTRUCT (); + GCData data = new GCData (); + data.ps = ps; + data.hwnd = handle; + GC gc = new_GC (data); + if (gc !is null) { + drawBackground (gc.handle); + RECT clientRect = new RECT(); + OS.GetClientRect (handle, clientRect); + if (drawSeparator) { + RECT rect = new RECT (); + int lineWidth = OS.GetSystemMetrics (OS.SM_CXBORDER); + int flags = (style & DWT.SHADOW_IN) !is 0 ? OS.EDGE_SUNKEN : OS.EDGE_ETCHED; + if ((style & DWT.HORIZONTAL) !is 0) { + int bottom = clientRect.top + Math.max (lineWidth * 2, (clientRect.bottom - clientRect.top) / 2); + OS.SetRect (rect, clientRect.left, clientRect.top, clientRect.right, bottom); + OS.DrawEdge (gc.handle, rect, flags, OS.BF_BOTTOM); + } else { + int right = clientRect.left + Math.max (lineWidth * 2, (clientRect.right - clientRect.left) / 2); + OS.SetRect (rect, clientRect.left, clientRect.top, right, clientRect.bottom); + OS.DrawEdge (gc.handle, rect, flags, OS.BF_RIGHT); + } + result = LRESULT.ONE; + } + if (drawImage) { + Rectangle imageBounds = image.getBounds (); + int x = 0; + if ((style & DWT.CENTER) !is 0) { + x = Math.max (0, (clientRect.right - imageBounds.width) / 2); + } else { + if ((style & DWT.RIGHT) !is 0) { + x = Math.max (0, (clientRect.right - imageBounds.width)); + } + } + gc.drawImage (image, x, Math.max (0, (clientRect.bottom - imageBounds.height) / 2)); + result = LRESULT.ONE; + } + int width = ps.right - ps.left; + int height = ps.bottom - ps.top; + if (width !is 0 && height !is 0) { + Event event = new Event (); + event.gc = gc; + event.x = ps.left; + event.y = ps.top; + event.width = width; + event.height = height; + sendEvent (DWT.Paint, event); + // widget could be disposed at this point + event.gc = null; + } + gc.dispose (); + } + return result; + } + } + return super.WM_PAINT(wParam, lParam); +} + +LRESULT wmDrawChild (int wParam, int lParam) { + DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT (); + OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof); + drawBackground (struct.hDC); + if ((style & DWT.SEPARATOR) !is 0) { + if ((style & DWT.SHADOW_NONE) !is 0) return null; + RECT rect = new RECT (); + int lineWidth = OS.GetSystemMetrics (OS.SM_CXBORDER); + int flags = (style & DWT.SHADOW_IN) !is 0 ? OS.EDGE_SUNKEN : OS.EDGE_ETCHED; + if ((style & DWT.HORIZONTAL) !is 0) { + int bottom = struct.top + Math.max (lineWidth * 2, (struct.bottom - struct.top) / 2); + OS.SetRect (rect, struct.left, struct.top, struct.right, bottom); + OS.DrawEdge (struct.hDC, rect, flags, OS.BF_BOTTOM); + } else { + int right = struct.left + Math.max (lineWidth * 2, (struct.right - struct.left) / 2); + OS.SetRect (rect, struct.left, struct.top, right, struct.bottom); + OS.DrawEdge (struct.hDC, rect, flags, OS.BF_RIGHT); + } + } else { + int width = struct.right - struct.left; + int height = struct.bottom - struct.top; + if (width !is 0 && height !is 0) { + bool drawImage = image !is null; + bool drawText = IMAGE_AND_TEXT && text.length () !is 0; + int margin = drawText && drawImage ? MARGIN : 0; + int imageWidth = 0, imageHeight = 0; + if (drawImage) { + Rectangle rect = image.getBounds (); + imageWidth = rect.width; + imageHeight = rect.height; + } + RECT rect = null; + TCHAR buffer = null; + int textWidth = 0, textHeight = 0, flags = 0; + if (drawText) { + rect = new RECT (); + flags = OS.DT_CALCRECT | OS.DT_EDITCONTROL | OS.DT_EXPANDTABS; + if ((style & DWT.LEFT) !is 0) flags |= OS.DT_LEFT; + if ((style & DWT.CENTER) !is 0) flags |= OS.DT_CENTER; + if ((style & DWT.RIGHT) !is 0) flags |= OS.DT_RIGHT; + if ((style & DWT.WRAP) !is 0) { + flags |= OS.DT_WORDBREAK; + rect.right = Math.max (0, width - imageWidth - margin); + } + buffer = new TCHAR (getCodePage (), text, true); + OS.DrawText (struct.hDC, buffer, -1, rect, flags); + textWidth = rect.right - rect.left; + textHeight = rect.bottom - rect.top; + } + int x = 0; + if ((style & DWT.CENTER) !is 0) { + x = Math.max (0, (width - imageWidth - textWidth - margin) / 2); + } else { + if ((style & DWT.RIGHT) !is 0) { + x = width - imageWidth - textWidth - margin; + } + } + if (drawImage) { + GCData data = new GCData(); + data.device = display; + GC gc = GC.win32_new (struct.hDC, data); + Image image = getEnabled () ? this.image : new Image (display, this.image, DWT.IMAGE_DISABLE); + gc.drawImage (image, x, Math.max (0, (height - imageHeight) / 2)); + if (image !is this.image) image.dispose (); + gc.dispose (); + x += imageWidth + margin; + } + if (drawText) { + flags &= ~OS.DT_CALCRECT; + rect.left = x; + rect.right += rect.left; + rect.top = Math.max (0, (height - textHeight) / 2); + rect.bottom += rect.top; + OS.DrawText (struct.hDC, buffer, -1, rect, flags); + } + } + } + return null; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Layout.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,107 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Layout; + + +import dwt.graphics.Point; +import dwt.widgets.Control; +import dwt.widgets.Composite; + +/** + * A layout controls the position and size + * of the children of a composite widget. + * This class is the abstract base class for + * layouts. + * + * @see Composite#setLayout(Layout) + */ +public abstract class Layout { + +/** + * Computes and returns the size of the specified + * composite's client area according to this layout. + * <p> + * This method computes the size that the client area + * of the composite must be in order to position all + * children at their preferred size inside the + * composite according to the layout algorithm + * encoded by this layout. + * </p> + * <p> + * When a width or height hint is supplied, it is + * used to constrain the result. For example, if a + * width hint is provided that is less than the + * width of the client area, the layout may choose + * to wrap and increase height, clip, overlap, or + * otherwise constrain the children. + * </p> + * + * @param composite a composite widget using this layout + * @param wHint width (<code>DWT.DEFAULT</code> for preferred size) + * @param hHint height (<code>DWT.DEFAULT</code> for preferred size) + * @param flushCache <code>true</code> means flush cached layout values + * @return a point containing the computed size (width, height) + * + * @see #layout + * @see Control#getBorderWidth + * @see Control#getBounds + * @see Control#getSize + * @see Control#pack(boolean) + * @see "computeTrim, getClientArea for controls that implement them" + */ +abstract Point computeSize (Composite composite, int wHint, int hHint, bool flushCache); + +/** + * Instruct the layout to flush any cached values + * associated with the control specified in the argument + * <code>control</code>. + * + * @param control a control managed by this layout + * @return true if the Layout has flushed all cached information associated with control + * + * @since 3.1 + */ +bool flushCache (Control control) { + return false; +} + +/** + * Lays out the children of the specified composite + * according to this layout. + * <p> + * This method positions and sizes the children of a + * composite using the layout algorithm encoded by this + * layout. Children of the composite are positioned in + * the client area of the composite. The position of + * the composite is not altered by this method. + * </p> + * <p> + * When the flush cache hint is true, the layout is + * instructed to flush any cached values associated + * with the children. Typically, a layout will cache + * the preferred sizes of the children to avoid the + * expense of computing these values each time the + * widget is laid out. + * </p> + * <p> + * When layout is triggered explicitly by the programmer + * the flush cache hint is true. When layout is triggered + * by a resize, either caused by the programmer or by the + * user, the hint is false. + * </p> + * + * @param composite a composite widget using this layout + * @param flushCache <code>true</code> means flush cached layout values + */ +abstract void layout (Composite composite, bool flushCache); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Link.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,968 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Link; + +import dwt.widgets.Control; +class Link : Control { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.accessibility.ACC; +import dwt.accessibility.Accessible; +import dwt.accessibility.AccessibleAdapter; +import dwt.accessibility.AccessibleControlAdapter; +import dwt.accessibility.AccessibleControlEvent; +import dwt.accessibility.AccessibleEvent; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Color; +import dwt.graphics.Font; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Point; +import dwt.graphics.RGB; +import dwt.graphics.Rectangle; +import dwt.graphics.TextLayout; +import dwt.graphics.TextStyle; +import dwt.internal.win32.LITEM; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.NMLINK; +import dwt.internal.win32.OS; +import dwt.internal.win32.PAINTSTRUCT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class represent a selectable + * user interface object that displays a text with + * links. + * <p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @since 3.1 + */ +public class Link extends Control { + String text; + TextLayout layout; + Color linkColor, disabledColor; + Point [] offsets; + Point selection; + String [] ids; + int [] mnemonics; + int focusIndex, mouseDownIndex; + int font; + static final RGB LINK_FOREGROUND = new RGB (0, 51, 153); + static final int LinkProc; + static final TCHAR LinkClass = new TCHAR (0, OS.WC_LINK, true); + static { + if (OS.COMCTL32_MAJOR >= 6) { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, LinkClass, lpWndClass); + LinkProc = lpWndClass.lpfnWndProc; + } else { + LinkProc = 0; + } + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Link (Composite parent, int style) { + super (parent, style); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the control is selected by the user. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection, typedListener); + addListener (DWT.DefaultSelection, typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + if (LinkProc !is 0) return OS.CallWindowProc (LinkProc, hwnd, msg, wParam, lParam); + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + if (wHint !is DWT.DEFAULT && wHint < 0) wHint = 0; + if (hHint !is DWT.DEFAULT && hHint < 0) hHint = 0; + int width, height; + if (OS.COMCTL32_MAJOR >= 6) { + int hDC = OS.GetDC (handle); + int newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + int oldFont = OS.SelectObject (hDC, newFont); + TCHAR buffer = new TCHAR (getCodePage (), parse (text), false); + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_NOPREFIX; + if (wHint !is DWT.DEFAULT) { + flags |= OS.DT_WORDBREAK; + rect.right = wHint; + } + OS.DrawText (hDC, buffer, buffer.length (), rect, flags); + width = rect.right - rect.left; + height = rect.bottom; + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + } else { + int layoutWidth = layout.getWidth (); + //TEMPORARY CODE + if (wHint is 0) { + layout.setWidth (1); + Rectangle rect = layout.getBounds (); + width = 0; + height = rect.height; + } else { + layout.setWidth (wHint); + Rectangle rect = layout.getBounds (); + width = rect.width; + height = rect.height; + } + layout.setWidth (layoutWidth); + } + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + int border = getBorderWidth (); + width += border * 2; + height += border * 2; + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + state |= THEME_BACKGROUND; + if (OS.COMCTL32_MAJOR < 6) { + layout = new TextLayout (display); + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + linkColor = Color.win32_new (display, OS.GetSysColor (OS.COLOR_HOTLIGHT)); + } else { + linkColor = new Color (display, LINK_FOREGROUND); + } + disabledColor = Color.win32_new (display, OS.GetSysColor (OS.COLOR_GRAYTEXT)); + offsets = new Point [0]; + ids = new String [0]; + mnemonics = new int [0]; + selection = new Point (-1, -1); + focusIndex = mouseDownIndex = -1; + } +} + +void createWidget () { + super.createWidget (); + text = ""; + if (OS.COMCTL32_MAJOR < 6) { + if ((style & DWT.MIRRORED) !is 0) { + layout.setOrientation (DWT.RIGHT_TO_LEFT); + } + initAccessible (); + } +} + +void drawWidget (GC gc, RECT rect) { + drawBackground (gc.handle, rect); + int selStart = selection.x; + int selEnd = selection.y; + if (selStart > selEnd) { + selStart = selection.y; + selEnd = selection.x; + } + // temporary code to disable text selection + selStart = selEnd = -1; + if (!OS.IsWindowEnabled (handle)) gc.setForeground (disabledColor); + layout.draw (gc, 0, 0, selStart, selEnd, null, null); + if (hasFocus () && focusIndex !is -1) { + Rectangle [] rects = getRectangles (focusIndex); + for (int i = 0; i < rects.length; i++) { + Rectangle rectangle = rects [i]; + gc.drawFocus (rectangle.x, rectangle.y, rectangle.width, rectangle.height); + } + } + if (hooks (DWT.Paint) || filters (DWT.Paint)) { + Event event = new Event (); + event.gc = gc; + event.x = rect.left; + event.y = rect.top; + event.width = rect.right - rect.left; + event.height = rect.bottom - rect.top; + sendEvent (DWT.Paint, event); + event.gc = null; + } +} + +void enableWidget (bool enabled) { + if (OS.COMCTL32_MAJOR >= 6) { + LITEM item = new LITEM (); + item.mask = OS.LIF_ITEMINDEX | OS.LIF_STATE; + item.stateMask = OS.LIS_ENABLED; + item.state = enabled ? OS.LIS_ENABLED : 0; + while (OS.SendMessage (handle, OS.LM_SETITEM, 0, item) !is 0) { + item.iLink++; + } + } else { + TextStyle linkStyle = new TextStyle (null, enabled ? linkColor : disabledColor, null); + linkStyle.underline = true; + for (int i = 0; i < offsets.length; i++) { + Point point = offsets [i]; + layout.setStyle (linkStyle, point.x, point.y); + } + redraw (); + } + /* + * Feature in Windows. For some reason, setting + * LIS_ENABLED state using LM_SETITEM causes the + * SysLink to become enabled. To be specific, + * calling IsWindowEnabled() returns true. The + * fix is disable the SysLink after LM_SETITEM. + */ + super.enableWidget (enabled); +} + +void initAccessible () { + Accessible accessible = getAccessible (); + accessible.addAccessibleListener (new AccessibleAdapter () { + public void getName (AccessibleEvent e) { + e.result = parse (text); + } + }); + + accessible.addAccessibleControlListener (new AccessibleControlAdapter () { + public void getChildAtPoint (AccessibleControlEvent e) { + e.childID = ACC.CHILDID_SELF; + } + + public void getLocation (AccessibleControlEvent e) { + Rectangle rect = display.map (getParent (), null, getBounds ()); + e.x = rect.x; + e.y = rect.y; + e.width = rect.width; + e.height = rect.height; + } + + public void getChildCount (AccessibleControlEvent e) { + e.detail = 0; + } + + public void getRole (AccessibleControlEvent e) { + e.detail = ACC.ROLE_LINK; + } + + public void getState (AccessibleControlEvent e) { + e.detail = ACC.STATE_FOCUSABLE; + if (hasFocus ()) e.detail |= ACC.STATE_FOCUSED; + } + + public void getDefaultAction (AccessibleControlEvent e) { + e.result = DWT.getMessage ("SWT_Press"); //$NON-NLS-1$ + } + + public void getSelection (AccessibleControlEvent e) { + if (hasFocus ()) e.childID = ACC.CHILDID_SELF; + } + + public void getFocus (AccessibleControlEvent e) { + if (hasFocus ()) e.childID = ACC.CHILDID_SELF; + } + }); +} + +String getNameText () { + return getText (); +} + +Rectangle [] getRectangles (int linkIndex) { + int lineCount = layout.getLineCount (); + Rectangle [] rects = new Rectangle [lineCount]; + int [] lineOffsets = layout.getLineOffsets (); + Point point = offsets [linkIndex]; + int lineStart = 1; + while (point.x > lineOffsets [lineStart]) lineStart++; + int lineEnd = 1; + while (point.y > lineOffsets [lineEnd]) lineEnd++; + int index = 0; + if (lineStart is lineEnd) { + rects [index++] = layout.getBounds (point.x, point.y); + } else { + rects [index++] = layout.getBounds (point.x, lineOffsets [lineStart]-1); + rects [index++] = layout.getBounds (lineOffsets [lineEnd-1], point.y); + if (lineEnd - lineStart > 1) { + for (int i = lineStart; i < lineEnd - 1; i++) { + rects [index++] = layout.getLineBounds (i); + } + } + } + if (rects.length !is index) { + Rectangle [] tmp = new Rectangle [index]; + System.arraycopy (rects, 0, tmp, 0, index); + rects = tmp; + } + return rects; +} + +/** + * Returns the receiver's text, which will be an empty + * string if it has never been set. + * + * @return the receiver's text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText () { + checkWidget (); + return text; +} + +String parse (String string) { + int length = string.length (); + offsets = new Point [length / 4]; + ids = new String [length / 4]; + mnemonics = new int [length / 4 + 1]; + StringBuffer result = new StringBuffer (); + char [] buffer = new char [length]; + string.getChars (0, string.length (), buffer, 0); + int index = 0, state = 0, linkIndex = 0; + int start = 0, tagStart = 0, linkStart = 0, endtagStart = 0, refStart = 0; + while (index < length) { + char c = Character.toLowerCase (buffer [index]); + switch (state) { + case 0: + if (c is '<') { + tagStart = index; + state++; + } + break; + case 1: + if (c is 'a') state++; + break; + case 2: + switch (c) { + case 'h': + state = 7; + break; + case '>': + linkStart = index + 1; + state++; + break; + default: + if (Character.isWhitespace(c)) break; + else state = 13; + } + break; + case 3: + if (c is '<') { + endtagStart = index; + state++; + } + break; + case 4: + state = c is '/' ? state + 1 : 3; + break; + case 5: + state = c is 'a' ? state + 1 : 3; + break; + case 6: + if (c is '>') { + mnemonics [linkIndex] = parseMnemonics (buffer, start, tagStart, result); + int offset = result.length (); + parseMnemonics (buffer, linkStart, endtagStart, result); + offsets [linkIndex] = new Point (offset, result.length () - 1); + if (ids [linkIndex] is null) { + ids [linkIndex] = new String (buffer, linkStart, endtagStart - linkStart); + } + linkIndex++; + start = tagStart = linkStart = endtagStart = refStart = index + 1; + state = 0; + } else { + state = 3; + } + break; + case 7: + state = c is 'r' ? state + 1 : 0; + break; + case 8: + state = c is 'e' ? state + 1 : 0; + break; + case 9: + state = c is 'f' ? state + 1 : 0; + break; + case 10: + state = c is '=' ? state + 1 : 0; + break; + case 11: + if (c is '"') { + state++; + refStart = index + 1; + } else { + state = 0; + } + break; + case 12: + if (c is '"') { + ids[linkIndex] = new String (buffer, refStart, index - refStart); + state = 2; + } + break; + case 13: + if (Character.isWhitespace (c)) { + state = 0; + } else if (c is '='){ + state++; + } + break; + case 14: + state = c is '"' ? state + 1 : 0; + break; + case 15: + if (c is '"') state = 2; + break; + default: + state = 0; + break; + } + index++; + } + if (start < length) { + int tmp = parseMnemonics (buffer, start, tagStart, result); + int mnemonic = parseMnemonics (buffer, linkStart, index, result); + if (mnemonic is -1) mnemonic = tmp; + mnemonics [linkIndex] = mnemonic; + } else { + mnemonics [linkIndex] = -1; + } + if (offsets.length !is linkIndex) { + Point [] newOffsets = new Point [linkIndex]; + System.arraycopy (offsets, 0, newOffsets, 0, linkIndex); + offsets = newOffsets; + String [] newIDs = new String [linkIndex]; + System.arraycopy (ids, 0, newIDs, 0, linkIndex); + ids = newIDs; + int [] newMnemonics = new int [linkIndex + 1]; + System.arraycopy (mnemonics, 0, newMnemonics, 0, linkIndex + 1); + mnemonics = newMnemonics; + } + return result.toString (); +} + +int parseMnemonics (char[] buffer, int start, int end, StringBuffer result) { + int mnemonic = -1, index = start; + while (index < end) { + if (buffer [index] is '&') { + if (index + 1 < end && buffer [index + 1] is '&') { + result.append (buffer [index]); + index++; + } else { + mnemonic = result.length(); + } + } else { + result.append (buffer [index]); + } + index++; + } + return mnemonic; +} + +void releaseWidget () { + super.releaseWidget (); + if (layout !is null) layout.dispose (); + layout = null; + if (linkColor !is null) linkColor.dispose (); + linkColor = null; + disabledColor = null; + offsets = null; + ids = null; + mnemonics = null; + text = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection, listener); +} + +/** + * Sets the receiver's text. + * <p> + * The string can contain both regular text and hyperlinks. A hyperlink + * is delimited by an anchor tag, <A> and </A>. Within an + * anchor, a single HREF attribute is supported. When a hyperlink is + * selected, the text field of the selection event contains either the + * text of the hyperlink or the value of its HREF, if one was specified. + * In the rare case of identical hyperlinks within the same string, the + * HREF tag can be used to distinguish between them. The string may + * include the mnemonic character and line delimiters. + * </p> + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if (string.equals (text)) return; + text = string; + if (OS.COMCTL32_MAJOR >= 6) { + bool enabled = OS.IsWindowEnabled (handle); + /* + * Bug in Windows. For some reason, when SetWindowText() + * is used to set the text of a link control to the empty + * string, the old text remains. The fix is to set the + * text to a space instead. + */ + if (string.length () is 0) string = " "; //$NON-NLS-1$ + TCHAR buffer = new TCHAR (getCodePage (), string, true); + OS.SetWindowText (handle, buffer); + parse (text); + enableWidget (enabled); + } else { + layout.setText (parse (text)); + focusIndex = offsets.length > 0 ? 0 : -1; + selection.x = selection.y = -1; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if (offsets.length > 0) { + bits |= OS.WS_TABSTOP; + } else { + bits &= ~OS.WS_TABSTOP; + } + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + bool enabled = OS.IsWindowEnabled (handle); + TextStyle linkStyle = new TextStyle (null, enabled ? linkColor : disabledColor, null); + linkStyle.underline = true; + for (int i = 0; i < offsets.length; i++) { + Point point = offsets [i]; + layout.setStyle (linkStyle, point.x, point.y); + } + TextStyle mnemonicStyle = new TextStyle (null, null, null); + mnemonicStyle.underline = true; + for (int i = 0; i < mnemonics.length; i++) { + int mnemonic = mnemonics [i]; + if (mnemonic !is -1) { + layout.setStyle (mnemonicStyle, mnemonic, mnemonic); + } + } + redraw (); + } +} + +int widgetStyle () { + int bits = super.widgetStyle (); + return bits | OS.WS_TABSTOP; +} + +TCHAR windowClass () { + return OS.COMCTL32_MAJOR >= 6 ? LinkClass : display.windowClass; +} + +int windowProc () { + return LinkProc !is 0 ? LinkProc : display.windowProc; +} + +LRESULT WM_CHAR (int wParam, int lParam) { + LRESULT result = super.WM_CHAR (wParam, lParam); + if (result !is null) return result; + if (OS.COMCTL32_MAJOR < 6) { + if (focusIndex is -1) return result; + switch (wParam) { + case ' ': + case DWT.CR: + Event event = new Event (); + event.text = ids [focusIndex]; + sendEvent (DWT.Selection, event); + break; + case DWT.TAB: + bool next = OS.GetKeyState (OS.VK_SHIFT) >= 0; + if (next) { + if (focusIndex < offsets.length - 1) { + focusIndex++; + redraw (); + } + } else { + if (focusIndex > 0) { + focusIndex--; + redraw (); + } + } + break; + } + } else { + switch (wParam) { + case ' ': + case DWT.CR: + case DWT.TAB: + /* + * NOTE: Call the window proc with WM_KEYDOWN rather than WM_CHAR + * so that the key that was ignored during WM_KEYDOWN is processed. + * This allows the application to cancel an operation that is normally + * performed in WM_KEYDOWN from WM_CHAR. + */ + int code = callWindowProc (handle, OS.WM_KEYDOWN, wParam, lParam); + return new LRESULT (code); + } + + } + return result; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + LRESULT result = super.WM_GETDLGCODE (wParam, lParam); + if (result !is null) return result; + int index, count, code = 0; + if (OS.COMCTL32_MAJOR >= 6) { + LITEM item = new LITEM (); + item.mask = OS.LIF_ITEMINDEX | OS.LIF_STATE; + item.stateMask = OS.LIS_FOCUSED; + index = 0; + while (OS.SendMessage (handle, OS.LM_GETITEM, 0, item) !is 0) { + if ((item.state & OS.LIS_FOCUSED) !is 0) { + index = item.iLink; + } + item.iLink++; + } + count = item.iLink; + code = callWindowProc (handle, OS.WM_GETDLGCODE, wParam, lParam); + } else { + index = focusIndex; + count = offsets.length; + } + if (count is 0) { + return new LRESULT (code | OS.DLGC_STATIC); + } + bool next = OS.GetKeyState (OS.VK_SHIFT) >= 0; + if (next && index < count - 1) { + return new LRESULT (code | OS.DLGC_WANTTAB); + } + if (!next && index > 0) { + return new LRESULT (code | OS.DLGC_WANTTAB); + } + return result; +} + +LRESULT WM_GETFONT (int wParam, int lParam) { + LRESULT result = super.WM_GETFONT (wParam, lParam); + if (result !is null) return result; + int code = callWindowProc (handle, OS.WM_GETFONT, wParam, lParam); + if (code !is 0) return new LRESULT (code); + if (font is 0) font = defaultFont (); + return new LRESULT (font); +} + +LRESULT WM_KEYDOWN (int wParam, int lParam) { + LRESULT result = super.WM_KEYDOWN (wParam, lParam); + if (result !is null) return result; + if (OS.COMCTL32_MAJOR >= 6) { + switch (wParam) { + case OS.VK_SPACE: + case OS.VK_RETURN: + case OS.VK_TAB: + /* + * Ensure that the window proc does not process VK_SPACE, + * VK_RETURN or VK_TAB so that it can be handled in WM_CHAR. + * This allows the application to cancel an operation that + * is normally performed in WM_KEYDOWN from WM_CHAR. + */ + return LRESULT.ZERO; + } + } + return result; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_KILLFOCUS (wParam, lParam); + if (OS.COMCTL32_MAJOR < 6) redraw (); + return result; +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); + if (result is LRESULT.ZERO) return result; + if (OS.COMCTL32_MAJOR < 6) { + if (focusIndex !is -1) setFocus (); + int x = lParam & 0xFFFF; + int y = lParam >> 16; + int offset = layout.getOffset (x, y, null); + int oldSelectionX = selection.x; + int oldSelectionY = selection.y; + selection.x = offset; + selection.y = -1; + if (oldSelectionX !is -1 && oldSelectionY !is -1) { + if (oldSelectionX > oldSelectionY) { + int temp = oldSelectionX; + oldSelectionX = oldSelectionY; + oldSelectionY = temp; + } + Rectangle rect = layout.getBounds (oldSelectionX, oldSelectionY); + redraw (rect.x, rect.y, rect.width, rect.height, false); + } + for (int j = 0; j < offsets.length; j++) { + Rectangle [] rects = getRectangles (j); + for (int i = 0; i < rects.length; i++) { + Rectangle rect = rects [i]; + if (rect.contains (x, y)) { + if (j !is focusIndex) { + redraw (); + } + focusIndex = mouseDownIndex = j; + return result; + } + } + } + } + return result; +} + +LRESULT WM_LBUTTONUP (int wParam, int lParam) { + LRESULT result = super.WM_LBUTTONUP (wParam, lParam); + if (result is LRESULT.ZERO) return result; + if (OS.COMCTL32_MAJOR < 6) { + if (mouseDownIndex is -1) return result; + int x = lParam & 0xFFFF; + int y = lParam >> 16; + Rectangle [] rects = getRectangles (mouseDownIndex); + for (int i = 0; i < rects.length; i++) { + Rectangle rect = rects [i]; + if (rect.contains (x, y)) { + Event event = new Event (); + event.text = ids [mouseDownIndex]; + sendEvent (DWT.Selection, event); + break; + } + } + } + mouseDownIndex = -1; + return result; +} + +LRESULT WM_MOUSEMOVE (int wParam, int lParam) { + LRESULT result = super.WM_MOUSEMOVE (wParam, lParam); + if (OS.COMCTL32_MAJOR < 6) { + int x = lParam & 0xFFFF; + int y = lParam >> 16; + if (OS.GetKeyState (OS.VK_LBUTTON) < 0) { + int oldSelection = selection.y; + selection.y = layout.getOffset (x, y, null); + if (selection.y !is oldSelection) { + int newSelection = selection.y; + if (oldSelection > newSelection) { + int temp = oldSelection; + oldSelection = newSelection; + newSelection = temp; + } + Rectangle rect = layout.getBounds (oldSelection, newSelection); + redraw (rect.x, rect.y, rect.width, rect.height, false); + } + } else { + for (int j = 0; j < offsets.length; j++) { + Rectangle [] rects = getRectangles (j); + for (int i = 0; i < rects.length; i++) { + Rectangle rect = rects [i]; + if (rect.contains (x, y)) { + setCursor (display.getSystemCursor (DWT.CURSOR_HAND)); + return result; + } + } + } + setCursor (null); + } + } + return result; +} + +LRESULT WM_PAINT (int wParam, int lParam) { + if (OS.COMCTL32_MAJOR >= 6) { + return super.WM_PAINT (wParam, lParam); + } + PAINTSTRUCT ps = new PAINTSTRUCT (); + GCData data = new GCData (); + data.ps = ps; + data.hwnd = handle; + GC gc = new_GC (data); + if (gc !is null) { + int width = ps.right - ps.left; + int height = ps.bottom - ps.top; + if (width !is 0 && height !is 0) { + RECT rect = new RECT (); + OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); + drawWidget (gc, rect); + } + gc.dispose (); + } + return LRESULT.ZERO; +} + +LRESULT WM_PRINTCLIENT (int wParam, int lParam) { + LRESULT result = super.WM_PRINTCLIENT (wParam, lParam); + if (OS.COMCTL32_MAJOR < 6) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + GCData data = new GCData (); + data.device = display; + data.foreground = getForegroundPixel (); + GC gc = GC.win32_new (wParam, data); + drawWidget (gc, rect); + gc.dispose (); + } + return result; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_SETFOCUS (wParam, lParam); + if (OS.COMCTL32_MAJOR < 6) redraw (); + return result; +} + +LRESULT WM_SETFONT (int wParam, int lParam) { + if (OS.COMCTL32_MAJOR < 6) { + layout.setFont (Font.win32_new (display, wParam)); + } + if (lParam !is 0) OS.InvalidateRect (handle, null, true); + return super.WM_SETFONT (font = wParam, lParam); +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + if (OS.COMCTL32_MAJOR < 6) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + layout.setWidth (rect.right > 0 ? rect.right : -1); + redraw (); + } + return result; +} + +LRESULT wmColorChild (int wParam, int lParam) { + LRESULT result = super.wmColorChild (wParam, lParam); + /* + * Feature in Windows. When a SysLink is disabled, it does + * not gray out the non-link portion of the text. The fix + * is to set the text color to the system gray color. + */ + if (OS.COMCTL32_MAJOR >= 6) { + if (!OS.IsWindowEnabled (handle)) { + OS.SetTextColor (wParam, OS.GetSysColor (OS.COLOR_GRAYTEXT)); + if (result is null) { + int backPixel = getBackgroundPixel (); + OS.SetBkColor (wParam, backPixel); + int hBrush = findBrush (backPixel, OS.BS_SOLID); + return new LRESULT (hBrush); + } + } + } + return result; +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + if (OS.COMCTL32_MAJOR >= 6) { + switch (hdr.code) { + case OS.NM_RETURN: + case OS.NM_CLICK: + NMLINK item = new NMLINK (); + OS.MoveMemory (item, lParam, NMLINK.sizeof); + Event event = new Event (); + event.text = ids [item.iLink]; + sendEvent (DWT.Selection, event); + break; + } + } + return super.wmNotifyChild (hdr, wParam, lParam); +} +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/List.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1557 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.List; + +import dwt.widgets.Scrollable; +class List : Scrollable { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Font; +import dwt.graphics.Point; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SCROLLINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class represent a selectable user interface + * object that displays a list of strings and issues notification + * when a string is selected. A list may be single or multi select. + * <p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>SINGLE, MULTI</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection, DefaultSelection</dd> + * </dl> + * <p> + * Note: Only one of SINGLE and MULTI may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class List extends Scrollable { + static final int INSET = 3; + static final int ListProc; + static final TCHAR ListClass = new TCHAR (0, "LISTBOX", true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, ListClass, lpWndClass); + ListProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#SINGLE + * @see DWT#MULTI + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public List (Composite parent, int style) { + super (parent, checkStyle (style)); +} +/** + * Adds the argument to the end of the receiver's list. + * + * @param string the new item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #add(String,int) + */ +public void add (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + TCHAR buffer = new TCHAR (getCodePage (), string, true); + int result = OS.SendMessage (handle, OS.LB_ADDSTRING, 0, buffer); + if (result is OS.LB_ERR) error (DWT.ERROR_ITEM_NOT_ADDED); + if (result is OS.LB_ERRSPACE) error (DWT.ERROR_ITEM_NOT_ADDED); + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (buffer, true); +} +/** + * Adds the argument to the receiver's list at the given + * zero-relative index. + * <p> + * Note: To add an item at the end of the list, use the + * result of calling <code>getItemCount()</code> as the + * index or use <code>add(String)</code>. + * </p> + * + * @param string the new item + * @param index the index for the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #add(String) + */ +public void add (String string, int index) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if (index is -1) error (DWT.ERROR_INVALID_RANGE); + TCHAR buffer = new TCHAR (getCodePage (), string, true); + int result = OS.SendMessage (handle, OS.LB_INSERTSTRING, index, buffer); + if (result is OS.LB_ERRSPACE) error (DWT.ERROR_ITEM_NOT_ADDED); + if (result is OS.LB_ERR) { + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (0 <= index && index <= count) { + error (DWT.ERROR_ITEM_NOT_ADDED); + } else { + error (DWT.ERROR_INVALID_RANGE); + } + } + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (buffer, true); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the user changes the receiver's selection, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the selection changes. + * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. + * </p> + * + * @param listener the listener which should be notified when the user changes the receiver's selection + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (ListProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + return checkBits (style, DWT.SINGLE, DWT.MULTI, 0, 0, 0, 0); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0; + if (wHint is DWT.DEFAULT) { + if ((style & DWT.H_SCROLL) !is 0) { + width = OS.SendMessage (handle, OS.LB_GETHORIZONTALEXTENT, 0, 0); + width -= INSET; + } else { + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + int cp = getCodePage (); + TCHAR buffer = new TCHAR (cp, 64 + 1); + for (int i=0; i<count; i++) { + int length = OS.SendMessage (handle, OS.LB_GETTEXTLEN, i, 0); + if (length !is OS.LB_ERR) { + if (length + 1 > buffer.length ()) { + buffer = new TCHAR (cp, length + 1); + } + int result = OS.SendMessage (handle, OS.LB_GETTEXT, i, buffer); + if (result !is OS.LB_ERR) { + OS.DrawText (hDC, buffer, length, rect, flags); + width = Math.max (width, rect.right - rect.left); + } + } + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + } + } + if (hHint is DWT.DEFAULT) { + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + int itemHeight = OS.SendMessage (handle, OS.LB_GETITEMHEIGHT, 0, 0); + height = count * itemHeight; + } + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + int border = getBorderWidth (); + width += border * 2 + INSET; + height += border * 2; + if ((style & DWT.V_SCROLL) !is 0) { + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + } + if ((style & DWT.H_SCROLL) !is 0) { + height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } + return new Point (width, height); +} + +int defaultBackground () { + return OS.GetSysColor (OS.COLOR_WINDOW); +} + +/** + * Deselects the items at the given zero-relative indices in the receiver. + * If the item at the given zero-relative index in the receiver + * is selected, it is deselected. If the item at the index + * was not selected, it remains deselected. Indices that are out + * of range and duplicate indices are ignored. + * + * @param indices the array of indices for the items to deselect + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the set of indices is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselect (int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + if (indices.length is 0) return; + if ((style & DWT.SINGLE) !is 0) { + int oldIndex = OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); + if (oldIndex is OS.LB_ERR) return; + for (int i=0; i<indices.length; i++) { + if (oldIndex is indices [i]) { + OS.SendMessage (handle, OS.LB_SETCURSEL, -1, 0); + return; + } + } + return; + } + for (int i=0; i<indices.length; i++) { + int index = indices [i]; + if (index !is -1) { + OS.SendMessage (handle, OS.LB_SETSEL, 0, index); + } + } +} + +/** + * Deselects the item at the given zero-relative index in the receiver. + * If the item at the index was already deselected, it remains + * deselected. Indices that are out of range are ignored. + * + * @param index the index of the item to deselect + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselect (int index) { + checkWidget (); + if (index is -1) return; + if ((style & DWT.SINGLE) !is 0) { + int oldIndex = OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); + if (oldIndex is OS.LB_ERR) return; + if (oldIndex is index) OS.SendMessage (handle, OS.LB_SETCURSEL, -1, 0); + return; + } + OS.SendMessage (handle, OS.LB_SETSEL, 0, index); +} + +/** + * Deselects the items at the given zero-relative indices in the receiver. + * If the item at the given zero-relative index in the receiver + * is selected, it is deselected. If the item at the index + * was not selected, it remains deselected. The range of the + * indices is inclusive. Indices that are out of range are ignored. + * + * @param start the start index of the items to deselect + * @param end the end index of the items to deselect + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselect (int start, int end) { + checkWidget (); + if (start > end) return; + if ((style & DWT.SINGLE) !is 0) { + int oldIndex = OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); + if (oldIndex is OS.LB_ERR) return; + if (start <= oldIndex && oldIndex <= end) { + OS.SendMessage (handle, OS.LB_SETCURSEL, -1, 0); + } + return; + } + /* + * Ensure that at least one item is contained in + * the range from start to end. Note that when + * start = end, LB_SELITEMRANGEEX deselects the + * item. + */ + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (start < 0 && end < 0) return; + if (start >= count && end >= count) return; + start = Math.min (count - 1, Math.max (0, start)); + end = Math.min (count - 1, Math.max (0, end)); + OS.SendMessage (handle, OS.LB_SELITEMRANGEEX, end, start); +} + +/** + * Deselects all selected items in the receiver. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselectAll () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) { + OS.SendMessage (handle, OS.LB_SETCURSEL, -1, 0); + } else { + OS.SendMessage (handle, OS.LB_SETSEL, 0, -1); + } +} + +/** + * Returns the zero-relative index of the item which currently + * has the focus in the receiver, or -1 if no item has focus. + * + * @return the index of the selected item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getFocusIndex () { + checkWidget (); + int result = OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); + if (result is 0) { + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (count is 0) return -1; + } + return result; +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getItem (int index) { + checkWidget (); + int length = OS.SendMessage (handle, OS.LB_GETTEXTLEN, index, 0); + if (length !is OS.LB_ERR) { + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + int result = OS.SendMessage (handle, OS.LB_GETTEXT, index, buffer); + if (result !is OS.LB_ERR) return buffer.toString (0, length); + } + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (0 <= index && index < count) error (DWT.ERROR_CANNOT_GET_ITEM); + error (DWT.ERROR_INVALID_RANGE); + return ""; +} + +/** + * Returns the number of items contained in the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + int result = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (result is OS.LB_ERR) error (DWT.ERROR_CANNOT_GET_COUNT); + return result; +} + +/** + * Returns the height of the area which would be used to + * display <em>one</em> of the items in the list. + * + * @return the height of one item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemHeight () { + checkWidget (); + int result = OS.SendMessage (handle, OS.LB_GETITEMHEIGHT, 0, 0); + if (result is OS.LB_ERR) error (DWT.ERROR_CANNOT_GET_ITEM_HEIGHT); + return result; +} + +/** + * Returns a (possibly empty) array of <code>String</code>s which + * are the items in the receiver. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver's list + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String [] getItems () { + checkWidget (); + int count = getItemCount (); + String [] result = new String [count]; + for (int i=0; i<count; i++) result [i] = getItem (i); + return result; +} + +/** + * Returns an array of <code>String</code>s that are currently + * selected in the receiver. The order of the items is unspecified. + * An empty array indicates that no items are selected. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its selection, so modifying the array will + * not affect the receiver. + * </p> + * @return an array representing the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String [] getSelection () { + checkWidget (); + int [] indices = getSelectionIndices (); + String [] result = new String [indices.length]; + for (int i=0; i<indices.length; i++) { + result [i] = getItem (indices [i]); + } + return result; +} + +/** + * Returns the number of selected items contained in the receiver. + * + * @return the number of selected items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelectionCount () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) { + int result = OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); + if (result is OS.LB_ERR) return 0; + return 1; + } + int result = OS.SendMessage (handle, OS.LB_GETSELCOUNT, 0, 0); + if (result is OS.LB_ERR) error (DWT.ERROR_CANNOT_GET_COUNT); + return result; +} + +/** + * Returns the zero-relative index of the item which is currently + * selected in the receiver, or -1 if no item is selected. + * + * @return the index of the selected item or -1 + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelectionIndex () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) { + return OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); + } + int count = OS.SendMessage (handle, OS.LB_GETSELCOUNT, 0, 0); + if (count is OS.LB_ERR) error (DWT.ERROR_CANNOT_GET_SELECTION); + if (count is 0) return -1; + int index = OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); + int result = OS.SendMessage (handle, OS.LB_GETSEL, index, 0); + if (result is OS.LB_ERR) error (DWT.ERROR_CANNOT_GET_SELECTION); + if (result !is 0) return index; + int [] buffer = new int [1]; + result = OS.SendMessage (handle, OS.LB_GETSELITEMS, 1, buffer); + if (result !is 1) error (DWT.ERROR_CANNOT_GET_SELECTION); + return buffer [0]; +} + +/** + * Returns the zero-relative indices of the items which are currently + * selected in the receiver. The order of the indices is unspecified. + * The array is empty if no items are selected. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its selection, so modifying the array will + * not affect the receiver. + * </p> + * @return the array of indices of the selected items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int [] getSelectionIndices () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) { + int result = OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); + if (result is OS.LB_ERR) return new int [0]; + return new int [] {result}; + } + int length = OS.SendMessage (handle, OS.LB_GETSELCOUNT, 0, 0); + if (length is OS.LB_ERR) error (DWT.ERROR_CANNOT_GET_SELECTION); + int [] indices = new int [length]; + int result = OS.SendMessage (handle, OS.LB_GETSELITEMS, length, indices); + if (result !is length) error (DWT.ERROR_CANNOT_GET_SELECTION); + return indices; +} + +/** + * Returns the zero-relative index of the item which is currently + * at the top of the receiver. This index can change when items are + * scrolled or new items are added or removed. + * + * @return the index of the top item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getTopIndex () { + checkWidget (); + return OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); +} + +/** + * Gets the index of an item. + * <p> + * The list is searched starting at 0 until an + * item is found that is equal to the search item. + * If no item is found, -1 is returned. Indexing + * is zero based. + * + * @param string the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (String string) { + return indexOf (string, 0); +} + +/** + * Searches the receiver's list starting at the given, + * zero-relative index until an item is found that is equal + * to the argument, and returns the index of that item. If + * no item is found or the starting index is out of range, + * returns -1. + * + * @param string the search item + * @param start the zero-relative index at which to start the search + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (String string, int start) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + + /* + * Bug in Windows. For some reason, LB_FINDSTRINGEXACT + * will not find empty strings even though it is legal + * to insert an empty string into a list. The fix is + * to search the list, an item at a time. + */ + if (string.length () is 0) { + int count = getItemCount (); + for (int i=start; i<count; i++) { + if (string.equals (getItem (i))) return i; + } + return -1; + } + + /* Use LB_FINDSTRINGEXACT to search for the item */ + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (!(0 <= start && start < count)) return -1; + int index = start - 1, last; + TCHAR buffer = new TCHAR (getCodePage (), string, true); + do { + index = OS.SendMessage (handle, OS.LB_FINDSTRINGEXACT, last = index, buffer); + if (index is OS.LB_ERR || index <= last) return -1; + } while (!string.equals (getItem (index))); + return index; +} + +/** + * Returns <code>true</code> if the item is selected, + * and <code>false</code> otherwise. Indices out of + * range are ignored. + * + * @param index the index of the item + * @return the selection state of the item at the index + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool isSelected (int index) { + checkWidget (); + int result = OS.SendMessage (handle, OS.LB_GETSEL, index, 0); + return (result !is 0) && (result !is OS.LB_ERR); +} + +/** + * Removes the items from the receiver at the given + * zero-relative indices. + * + * @param indices the array of indices of the items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * <li>ERROR_NULL_ARGUMENT - if the indices array is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + if (indices.length is 0) return; + int [] newIndices = new int [indices.length]; + System.arraycopy (indices, 0, newIndices, 0, indices.length); + sort (newIndices); + int start = newIndices [newIndices.length - 1], end = newIndices [0]; + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (!(0 <= start && start <= end && end < count)) { + error (DWT.ERROR_INVALID_RANGE); + } + int topIndex = OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); + RECT rect = null; + int hDC = 0, oldFont = 0, newFont = 0, newWidth = 0; + if ((style & DWT.H_SCROLL) !is 0) { + rect = new RECT (); + hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + } + int cp = getCodePage (); + int i = 0, topCount = 0, last = -1; + while (i < newIndices.length) { + int index = newIndices [i]; + if (index !is last) { + TCHAR buffer = null; + if ((style & DWT.H_SCROLL) !is 0) { + int length = OS.SendMessage (handle, OS.LB_GETTEXTLEN, index, 0); + if (length is OS.LB_ERR) break; + buffer = new TCHAR (cp, length + 1); + int result = OS.SendMessage (handle, OS.LB_GETTEXT, index, buffer); + if (result is OS.LB_ERR) break; + } + int result = OS.SendMessage (handle, OS.LB_DELETESTRING, index, 0); + if (result is OS.LB_ERR) break; + if ((style & DWT.H_SCROLL) !is 0) { + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + OS.DrawText (hDC, buffer, -1, rect, flags); + newWidth = Math.max (newWidth, rect.right - rect.left); + } + if (index < topIndex) topCount++; + last = index; + } + i++; + } + if ((style & DWT.H_SCROLL) !is 0) { + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + setScrollWidth (newWidth, false); + } + if (topCount > 0) { + topIndex -= topCount; + OS.SendMessage (handle, OS.LB_SETTOPINDEX, topIndex, 0); + } + if (i < newIndices.length) error (DWT.ERROR_ITEM_NOT_REMOVED); +} + +/** + * Removes the item from the receiver at the given + * zero-relative index. + * + * @param index the index for the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (int index) { + checkWidget (); + TCHAR buffer = null; + if ((style & DWT.H_SCROLL) !is 0) { + int length = OS.SendMessage (handle, OS.LB_GETTEXTLEN, index, 0); + if (length is OS.LB_ERR) { + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (0 <= index && index < count) error (DWT.ERROR_ITEM_NOT_REMOVED); + error (DWT.ERROR_INVALID_RANGE); + } + buffer = new TCHAR (getCodePage (), length + 1); + int result = OS.SendMessage (handle, OS.LB_GETTEXT, index, buffer); + if (result is OS.LB_ERR) { + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (0 <= index && index < count) error (DWT.ERROR_ITEM_NOT_REMOVED); + error (DWT.ERROR_INVALID_RANGE); + } + } + int topIndex = OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); + int result = OS.SendMessage (handle, OS.LB_DELETESTRING, index, 0); + if (result is OS.LB_ERR) { + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (0 <= index && index < count) error (DWT.ERROR_ITEM_NOT_REMOVED); + error (DWT.ERROR_INVALID_RANGE); + } + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (buffer, false); + if (index < topIndex) { + OS.SendMessage (handle, OS.LB_SETTOPINDEX, topIndex - 1, 0); + } +} + +/** + * Removes the items from the receiver which are + * between the given zero-relative start and end + * indices (inclusive). + * + * @param start the start of the range + * @param end the end of the range + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (int start, int end) { + checkWidget (); + if (start > end) return; + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (!(0 <= start && start <= end && end < count)) { + error (DWT.ERROR_INVALID_RANGE); + } + if (start is 0 && end is count - 1) { + removeAll (); + return; + } + int topIndex = OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); + RECT rect = null; + int hDC = 0, oldFont = 0, newFont = 0, newWidth = 0; + if ((style & DWT.H_SCROLL) !is 0) { + rect = new RECT (); + hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + } + int cp = getCodePage (); + int index = start; + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + while (index <= end) { + TCHAR buffer = null; + if ((style & DWT.H_SCROLL) !is 0) { + int length = OS.SendMessage (handle, OS.LB_GETTEXTLEN, start, 0); + if (length is OS.LB_ERR) break; + buffer = new TCHAR (cp, length + 1); + int result = OS.SendMessage (handle, OS.LB_GETTEXT, start, buffer); + if (result is OS.LB_ERR) break; + } + int result = OS.SendMessage (handle, OS.LB_DELETESTRING, start, 0); + if (result is OS.LB_ERR) break; + if ((style & DWT.H_SCROLL) !is 0) { + OS.DrawText (hDC, buffer, -1, rect, flags); + newWidth = Math.max (newWidth, rect.right - rect.left); + } + index++; + } + if ((style & DWT.H_SCROLL) !is 0) { + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + setScrollWidth (newWidth, false); + } + if (end < topIndex) { + topIndex -= end - start + 1; + OS.SendMessage (handle, OS.LB_SETTOPINDEX, topIndex, 0); + } + if (index <= end) error (DWT.ERROR_ITEM_NOT_REMOVED); +} + +/** + * Searches the receiver's list starting at the first item + * until an item is found that is equal to the argument, + * and removes that item from the list. + * + * @param string the item to remove + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + int index = indexOf (string, 0); + if (index is -1) error (DWT.ERROR_INVALID_ARGUMENT); + remove (index); +} + +/** + * Removes all of the items from the receiver. + * <p> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void removeAll () { + checkWidget (); + OS.SendMessage (handle, OS.LB_RESETCONTENT, 0, 0); + if ((style & DWT.H_SCROLL) !is 0) { + OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, 0, 0); + } +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the user changes the receiver's selection. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Selects the items at the given zero-relative indices in the receiver. + * The current selection is not cleared before the new items are selected. + * <p> + * If the item at a given index is not selected, it is selected. + * If the item at a given index was already selected, it remains selected. + * Indices that are out of range and duplicate indices are ignored. + * If the receiver is single-select and multiple indices are specified, + * then all indices are ignored. + * + * @param indices the array of indices for the items to select + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of indices is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see List#setSelection(int[]) + */ +public void select (int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + int length = indices.length; + if (length is 0 || ((style & DWT.SINGLE) !is 0 && length > 1)) return; + select (indices, false); +} + +void select (int [] indices, bool scroll) { + int i = 0; + while (i < indices.length) { + int index = indices [i]; + if (index !is -1) { + select (index, false); + } + i++; + } + if (scroll) showSelection (); +} + +/** + * Selects the item at the given zero-relative index in the receiver's + * list. If the item at the index was already selected, it remains + * selected. Indices that are out of range are ignored. + * + * @param index the index of the item to select + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void select (int index) { + checkWidget (); + select (index, false); +} + +void select (int index, bool scroll) { + if (index < 0) return; + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (index >= count) return; + if (scroll) { + if ((style & DWT.SINGLE) !is 0) { + OS.SendMessage (handle, OS.LB_SETCURSEL, index, 0); + } else { + OS.SendMessage (handle, OS.LB_SETSEL, 1, index); + } + return; + } + int topIndex = OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); + RECT itemRect = new RECT (), selectedRect = null; + OS.SendMessage (handle, OS.LB_GETITEMRECT, index, itemRect); + bool redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) { + OS.UpdateWindow (handle); + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } + int focusIndex = -1; + if ((style & DWT.SINGLE) !is 0) { + int oldIndex = OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); + if (oldIndex !is -1) { + selectedRect = new RECT (); + OS.SendMessage (handle, OS.LB_GETITEMRECT, oldIndex, selectedRect); + } + OS.SendMessage (handle, OS.LB_SETCURSEL, index, 0); + } else { + focusIndex = OS.SendMessage (handle, OS.LB_GETCARETINDEX, 0, 0); + OS.SendMessage (handle, OS.LB_SETSEL, 1, index); + } + if ((style & DWT.MULTI) !is 0) { + if (focusIndex !is -1) { + OS.SendMessage (handle, OS.LB_SETCARETINDEX, focusIndex, 0); + } + } + OS.SendMessage (handle, OS.LB_SETTOPINDEX, topIndex, 0); + if (redraw) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + OS.ValidateRect (handle, null); + OS.InvalidateRect (handle, itemRect, true); + if (selectedRect !is null) { + OS.InvalidateRect (handle, selectedRect, true); + } + } +} + +/** + * Selects the items in the range specified by the given zero-relative + * indices in the receiver. The range of indices is inclusive. + * The current selection is not cleared before the new items are selected. + * <p> + * If an item in the given range is not selected, it is selected. + * If an item in the given range was already selected, it remains selected. + * Indices that are out of range are ignored and no items will be selected + * if start is greater than end. + * If the receiver is single-select and there is more than one item in the + * given range, then all indices are ignored. + * + * @param start the start of the range + * @param end the end of the range + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see List#setSelection(int,int) + */ +public void select (int start, int end) { + checkWidget (); + if (end < 0 || start > end || ((style & DWT.SINGLE) !is 0 && start !is end)) return; + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (count is 0 || start >= count) return; + start = Math.max (0, start); + end = Math.min (end, count - 1); + if ((style & DWT.SINGLE) !is 0) { + select (start, false); + } else { + select (start, end, false); + } +} + +void select (int start, int end, bool scroll) { + /* + * Note that when start = end, LB_SELITEMRANGEEX + * deselects the item. + */ + if (start is end) { + select (start, scroll); + return; + } + OS.SendMessage (handle, OS.LB_SELITEMRANGEEX, start, end); + if (scroll) showSelection (); +} + +/** + * Selects all of the items in the receiver. + * <p> + * If the receiver is single-select, do nothing. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void selectAll () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) return; + OS.SendMessage (handle, OS.LB_SETSEL, 1, -1); +} + +void setFocusIndex (int index) { +// checkWidget (); + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (!(0 <= index && index < count)) return; + OS.SendMessage (handle, OS.LB_SETCARETINDEX, index, 0); +} + +public void setFont (Font font) { + checkWidget (); + super.setFont (font); + if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (); +} + +/** + * Sets the text of the item in the receiver's list at the given + * zero-relative index to the string argument. + * + * @param index the index for the item + * @param string the new text for the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setItem (int index, String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + int topIndex = getTopIndex (); + bool isSelected = isSelected (index); + remove (index); + add (string, index); + if (isSelected) select (index, false); + setTopIndex (topIndex); +} + +/** + * Sets the receiver's items to be the given array of items. + * + * @param items the array of items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the items array is null</li> + * <li>ERROR_INVALID_ARGUMENT - if an item in the items array is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setItems (String [] items) { + checkWidget (); + if (items is null) error (DWT.ERROR_NULL_ARGUMENT); + for (int i=0; i<items.length; i++) { + if (items [i] is null) error (DWT.ERROR_INVALID_ARGUMENT); + } + int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + OS.SetWindowLong (handle, OS.GWL_WNDPROC, ListProc); + bool redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } + RECT rect = null; + int hDC = 0, oldFont = 0, newFont = 0, newWidth = 0; + if ((style & DWT.H_SCROLL) !is 0) { + rect = new RECT (); + hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, 0, 0); + } + int length = items.length; + OS.SendMessage (handle, OS.LB_RESETCONTENT, 0, 0); + OS.SendMessage (handle, OS.LB_INITSTORAGE, length, length * 32); + int index = 0; + int cp = getCodePage (); + while (index < length) { + String string = items [index]; + TCHAR buffer = new TCHAR (cp, string, true); + int result = OS.SendMessage (handle, OS.LB_ADDSTRING, 0, buffer); + if (result is OS.LB_ERR || result is OS.LB_ERRSPACE) break; + if ((style & DWT.H_SCROLL) !is 0) { + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + OS.DrawText (hDC, buffer, -1, rect, flags); + newWidth = Math.max (newWidth, rect.right - rect.left); + } + index++; + } + if ((style & DWT.H_SCROLL) !is 0) { + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, newWidth + INSET, 0); + } + if (redraw) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + /* + * This code is intentionally commented. The window proc + * for the list box implements WM_SETREDRAW to invalidate + * and erase the widget. This is undocumented behavior. + * The commented code below shows what is actually happening + * and reminds us that we are relying on this undocumented + * behavior. + */ +// int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; +// OS.RedrawWindow (handle, null, 0, flags); + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); + if (index < items.length) error (DWT.ERROR_ITEM_NOT_ADDED); +} + +void setScrollWidth () { + int newWidth = 0; + RECT rect = new RECT (); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + int cp = getCodePage (); + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + for (int i=0; i<count; i++) { + int length = OS.SendMessage (handle, OS.LB_GETTEXTLEN, i, 0); + if (length !is OS.LB_ERR) { + TCHAR buffer = new TCHAR (cp, length + 1); + int result = OS.SendMessage (handle, OS.LB_GETTEXT, i, buffer); + if (result !is OS.LB_ERR) { + OS.DrawText (hDC, buffer, -1, rect, flags); + newWidth = Math.max (newWidth, rect.right - rect.left); + } + } + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, newWidth + INSET, 0); +} + +void setScrollWidth (TCHAR buffer, bool grow) { + RECT rect = new RECT (); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + OS.DrawText (hDC, buffer, -1, rect, flags); + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + setScrollWidth (rect.right - rect.left, grow); +} + +void setScrollWidth (int newWidth, bool grow) { + newWidth += INSET; + int width = OS.SendMessage (handle, OS.LB_GETHORIZONTALEXTENT, 0, 0); + if (grow) { + if (newWidth <= width) return; + OS.SendMessage (handle, OS.LB_SETHORIZONTALEXTENT, newWidth, 0); + } else { + if (newWidth < width) return; + setScrollWidth (); + } +} + +/** + * Selects the items at the given zero-relative indices in the receiver. + * The current selection is cleared before the new items are selected. + * <p> + * Indices that are out of range and duplicate indices are ignored. + * If the receiver is single-select and multiple indices are specified, + * then all indices are ignored. + * + * @param indices the indices of the items to select + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of indices is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see List#deselectAll() + * @see List#select(int[]) + */ +public void setSelection(int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + deselectAll (); + int length = indices.length; + if (length is 0 || ((style & DWT.SINGLE) !is 0 && length > 1)) return; + select (indices, true); + if ((style & DWT.MULTI) !is 0) { + int focusIndex = indices [0]; + if (focusIndex >= 0) setFocusIndex (focusIndex); + } +} + +/** + * Sets the receiver's selection to be the given array of items. + * The current selection is cleared before the new items are selected. + * <p> + * Items that are not in the receiver are ignored. + * If the receiver is single-select and multiple items are specified, + * then all items are ignored. + * + * @param items the array of items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of items is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see List#deselectAll() + * @see List#select(int[]) + * @see List#setSelection(int[]) + */ +public void setSelection (String [] items) { + checkWidget (); + if (items is null) error (DWT.ERROR_NULL_ARGUMENT); + deselectAll (); + int length = items.length; + if (length is 0 || ((style & DWT.SINGLE) !is 0 && length > 1)) return; + int focusIndex = -1; + for (int i=length-1; i>=0; --i) { + String string = items [i]; + int index = 0; + if (string !is null) { + int localFocus = -1; + while ((index = indexOf (string, index)) !is -1) { + if (localFocus is -1) localFocus = index; + select (index, false); + if ((style & DWT.SINGLE) !is 0 && isSelected (index)) { + showSelection (); + return; + } + index++; + } + if (localFocus !is -1) focusIndex = localFocus; + } + } + if ((style & DWT.MULTI) !is 0) { + if (focusIndex >= 0) setFocusIndex (focusIndex); + } +} + +/** + * Selects the item at the given zero-relative index in the receiver. + * If the item at the index was already selected, it remains selected. + * The current selection is first cleared, then the new item is selected. + * Indices that are out of range are ignored. + * + * @param index the index of the item to select + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * @see List#deselectAll() + * @see List#select(int) + */ +public void setSelection (int index) { + checkWidget (); + deselectAll (); + select (index, true); + if ((style & DWT.MULTI) !is 0) { + if (index >= 0) setFocusIndex (index); + } +} + +/** + * Selects the items in the range specified by the given zero-relative + * indices in the receiver. The range of indices is inclusive. + * The current selection is cleared before the new items are selected. + * <p> + * Indices that are out of range are ignored and no items will be selected + * if start is greater than end. + * If the receiver is single-select and there is more than one item in the + * given range, then all indices are ignored. + * + * @param start the start index of the items to select + * @param end the end index of the items to select + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see List#deselectAll() + * @see List#select(int,int) + */ +public void setSelection (int start, int end) { + checkWidget (); + deselectAll (); + if (end < 0 || start > end || ((style & DWT.SINGLE) !is 0 && start !is end)) return; + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (count is 0 || start >= count) return; + start = Math.max (0, start); + end = Math.min (end, count - 1); + if ((style & DWT.SINGLE) !is 0) { + select (start, true); + } else { + select (start, end, true); + setFocusIndex (start); + } +} + +/** + * Sets the zero-relative index of the item which is currently + * at the top of the receiver. This index can change when items + * are scrolled or new items are added and removed. + * + * @param index the index of the top item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setTopIndex (int index) { + checkWidget (); + int result = OS.SendMessage (handle, OS.LB_SETTOPINDEX, index, 0); + if (result is OS.LB_ERR) { + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + index = Math.min (count - 1, Math.max (0, index)); + OS.SendMessage (handle, OS.LB_SETTOPINDEX, index, 0); + } +} + +/** + * Shows the selection. If the selection is already showing in the receiver, + * this method simply returns. Otherwise, the items are scrolled until + * the selection is visible. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void showSelection () { + checkWidget (); + int index; + if ((style & DWT.SINGLE) !is 0) { + index = OS.SendMessage (handle, OS.LB_GETCURSEL, 0, 0); + } else { + int [] indices = new int [1]; + int result = OS.SendMessage (handle, OS.LB_GETSELITEMS, 1, indices); + index = indices [0]; + if (result !is 1) index = -1; + } + if (index is -1) return; + int count = OS.SendMessage (handle, OS.LB_GETCOUNT, 0, 0); + if (count is 0) return; + int height = OS.SendMessage (handle, OS.LB_GETITEMHEIGHT, 0, 0); + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + int topIndex = OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); + int visibleCount = Math.max (rect.bottom / height, 1); + int bottomIndex = Math.min (topIndex + visibleCount, count) - 1; + if (topIndex <= index && index <= bottomIndex) return; + int newTop = Math.min (Math.max (index - (visibleCount / 2), 0), count - 1); + OS.SendMessage (handle, OS.LB_SETTOPINDEX, newTop, 0); +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.LBS_NOTIFY | OS.LBS_NOINTEGRALHEIGHT; + if ((style & DWT.SINGLE) !is 0) return bits; + if ((style & DWT.MULTI) !is 0) { + if ((style & DWT.SIMPLE) !is 0) return bits | OS.LBS_MULTIPLESEL; + return bits | OS.LBS_EXTENDEDSEL; + } + return bits; +} + +TCHAR windowClass () { + return ListClass; +} + +int windowProc () { + return ListProc; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + /* + * Bug in Windows. If the top index is changed while the + * list is being resized, Windows does not redraw properly + * when their is white space at the bottom of the control. + * The fix is to detect when the top index has changed and + * redraw the control. + * + * Bug in Windows. If the receiver is scrolled horizontally + * and is resized, the list does not redraw properly. The fix + * is to redraw the control when the horizontal scroll bar is + * not at the beginning. + */ + int oldIndex = OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); + LRESULT result = super.WM_SIZE (wParam, lParam); + if (!isDisposed ()) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + if (OS.GetScrollInfo (handle, OS.SB_HORZ, info)) { + if (info.nPos !is 0) OS.InvalidateRect (handle, null, true); + } + int newIndex = OS.SendMessage (handle, OS.LB_GETTOPINDEX, 0, 0); + if (oldIndex !is newIndex) OS.InvalidateRect (handle, null, true); + } + return result; +} + +LRESULT wmCommandChild (int wParam, int lParam) { + int code = wParam >> 16; + switch (code) { + case OS.LBN_SELCHANGE: + postEvent (DWT.Selection); + break; + case OS.LBN_DBLCLK: + postEvent (DWT.DefaultSelection); + break; + } + return super.wmCommandChild (wParam, lParam); +} + + + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Listener.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,55 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Listener; + +import dwt.widgets.Event; + +/** + * Implementers of <code>Listener</code> provide a simple + * <code>handleEvent()</code> method that is used internally + * by DWT to dispatch events. + * <p> + * After creating an instance of a class that implements this interface + * it can be added to a widget using the + * <code>addListener(int eventType, Listener handler)</code> method and + * removed using the + * <code>removeListener (int eventType, Listener handler)</code> method. + * When the specified event occurs, <code>handleEvent(...)</code> will + * be sent to the instance. + * </p> + * <p> + * Classes which implement this interface are described within DWT as + * providing the <em>untyped listener</em> API. Typically, widgets will + * also provide a higher-level <em>typed listener</em> API, that is based + * on the standard <code>java.util.EventListener</code> pattern. + * </p> + * <p> + * Note that, since all internal DWT event dispatching is based on untyped + * listeners, it is simple to build subsets of DWT for use on memory + * constrained, small footprint devices, by removing the classes and + * methods which implement the typed listener API. + * </p> + * + * @see Widget#addListener + * @see java.util.EventListener + * @see dwt.events + */ +public interface Listener { + +/** + * Sent when an event that the receiver has registered for occurs. + * + * @param event the event which occurred + */ +void handleEvent (Event event); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Menu.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1555 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Menu; + +import dwt.widgets.Widget; +class Menu : Widget { + this( Widget, int ); +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.HelpListener; +import dwt.events.MenuListener; +import dwt.graphics.Color; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.ImageList; +import dwt.internal.win32.MENUBARINFO; +import dwt.internal.win32.MENUINFO; +import dwt.internal.win32.MENUITEMINFO; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SHMENUBARINFO; +import dwt.internal.win32.TBBUTTON; +import dwt.internal.win32.TBBUTTONINFO; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class are user interface objects that contain + * menu items. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>BAR, DROP_DOWN, POP_UP, NO_RADIO_GROUP</dd> + * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd> + * <dt><b>Events:</b></dt> + * <dd>Help, Hide, Show </dd> + * </dl> + * <p> + * Note: Only one of BAR, DROP_DOWN and POP_UP may be specified. + * Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class Menu extends Widget { + /** + * the handle to the OS resource + * (Warning: This field is platform dependent) + * <p> + * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It is not available on all + * platforms and should never be accessed from application code. + * </p> + */ + public int handle; + + int x, y, hBrush, hwndCB, id0, id1; + int foreground = -1, background = -1; + Image backgroundImage; + bool hasLocation; + MenuItem cascade; + Decorations parent; + ImageList imageList; + + /* Resource ID for SHMENUBARINFO */ + static final int ID_PPC = 100; + + /* SmartPhone SoftKeyBar resource ids */ + static final int ID_SPMM = 102; + static final int ID_SPBM = 103; + static final int ID_SPMB = 104; + static final int ID_SPBB = 105; + static final int ID_SPSOFTKEY0 = 106; + static final int ID_SPSOFTKEY1 = 107; + +/** + * Constructs a new instance of this class given its parent, + * and sets the style for the instance so that the instance + * will be a popup menu on the given parent's shell. + * + * @param parent a control which will be the parent of the new instance (cannot be null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#POP_UP + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Menu (Control parent) { + this (checkNull (parent).menuShell (), DWT.POP_UP); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Decorations</code>) and a style value + * describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a decorations control which will be the parent of the new instance (cannot be null) + * @param style the style of menu to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#BAR + * @see DWT#DROP_DOWN + * @see DWT#POP_UP + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Menu (Decorations parent, int style) { + this (parent, checkStyle (style), 0); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Menu</code>) and sets the style + * for the instance so that the instance will be a drop-down + * menu on the given parent's parent. + * + * @param parentMenu a menu which will be the parent of the new instance (cannot be null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#DROP_DOWN + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Menu (Menu parentMenu) { + this (checkNull (parentMenu).parent, DWT.DROP_DOWN); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>MenuItem</code>) and sets the style + * for the instance so that the instance will be a drop-down + * menu on the given parent's parent menu. + * + * @param parentItem a menu item which will be the parent of the new instance (cannot be null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#DROP_DOWN + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Menu (MenuItem parentItem) { + this (checkNull (parentItem).parent); +} + +Menu (Decorations parent, int style, int handle) { + super (parent, checkStyle (style)); + this.parent = parent; + this.handle = handle; + /* + * Bug in IBM JVM 1.3.1. For some reason, when the checkOrientation() is + * called from createWidget(), the JVM issues this error: + * + * JVM Exception 0x2 (subcode 0x0) occurred in thread "main" (TID:0x9F19D8) + * + * In addition, on Windows XP, a dialog appears with following error message, + * indicating that the problem may be in the JIT: + * + * AppName: java.exe AppVer: 0.0.0.0 ModName: jitc.dll + * ModVer: 0.0.0.0 Offset: 000b6912 + * + * The fix is to call checkOrientation() from here. + */ + checkOrientation (parent); + createWidget (); +} + +void _setVisible (bool visible) { + if ((style & (DWT.BAR | DWT.DROP_DOWN)) !is 0) return; + int hwndParent = parent.handle; + if (visible) { + int flags = OS.TPM_LEFTBUTTON; + if (OS.GetKeyState (OS.VK_LBUTTON) >= 0) flags |= OS.TPM_RIGHTBUTTON; + if ((style & DWT.RIGHT_TO_LEFT) !is 0) flags |= OS.TPM_RIGHTALIGN; + if ((parent.style & DWT.MIRRORED) !is 0) { + flags &= ~OS.TPM_RIGHTALIGN; + if ((style & DWT.LEFT_TO_RIGHT) !is 0) flags |= OS.TPM_RIGHTALIGN; + } + int nX = x, nY = y; + if (!hasLocation) { + int pos = OS.GetMessagePos (); + nX = (short) (pos & 0xFFFF); + nY = (short) (pos >> 16); + } + /* + * Feature in Windows. It is legal use TrackPopupMenu() + * to display an empty menu as long as menu items are added + * inside of WM_INITPOPUPMENU. If no items are added, then + * TrackPopupMenu() fails and does not send an indication + * that the menu has been closed. This is not strictly a + * bug but leads to unwanted behavior when application code + * assumes that every WM_INITPOPUPMENU will eventually result + * in a WM_MENUSELECT, wParam=0xFFFF0000, lParam=0 to indicate + * that the menu has been closed. The fix is to detect the + * case when TrackPopupMenu() fails and the number of items in + * the menu is zero and issue a fake WM_MENUSELECT. + */ + bool success = OS.TrackPopupMenu (handle, flags, nX, nY, 0, hwndParent, null); + if (!success && GetMenuItemCount (handle) is 0) { + OS.SendMessage (hwndParent, OS.WM_MENUSELECT, 0xFFFF0000, 0); + } + } else { + OS.SendMessage (hwndParent, OS.WM_CANCELMODE, 0, 0); + } +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when help events are generated for the control, + * by sending it one of the messages defined in the + * <code>HelpListener</code> interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see HelpListener + * @see #removeHelpListener + */ +public void addHelpListener (HelpListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Help, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when menus are hidden or shown, by sending it + * one of the messages defined in the <code>MenuListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MenuListener + * @see #removeMenuListener + */ +public void addMenuListener (MenuListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Hide,typedListener); + addListener (DWT.Show,typedListener); +} + +static Control checkNull (Control control) { + if (control is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + return control; +} + +static Menu checkNull (Menu menu) { + if (menu is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + return menu; +} + +static MenuItem checkNull (MenuItem item) { + if (item is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + return item; +} + +static int checkStyle (int style) { + return checkBits (style, DWT.POP_UP, DWT.BAR, DWT.DROP_DOWN, 0, 0, 0); +} + +void createHandle () { + if (handle !is 0) return; + if ((style & DWT.BAR) !is 0) { + if (OS.IsPPC) { + int hwndShell = parent.handle; + SHMENUBARINFO mbi = new SHMENUBARINFO (); + mbi.cbSize = SHMENUBARINFO.sizeof; + mbi.hwndParent = hwndShell; + mbi.dwFlags = OS.SHCMBF_HIDDEN; + mbi.nToolBarId = ID_PPC; + mbi.hInstRes = OS.GetLibraryHandle (); + bool success = OS.SHCreateMenuBar (mbi); + hwndCB = mbi.hwndMB; + if (!success) error (DWT.ERROR_NO_HANDLES); + /* Remove the item from the resource file */ + OS.SendMessage (hwndCB, OS.TB_DELETEBUTTON, 0, 0); + return; + } + /* + * Note in WinCE SmartPhone. The SoftBar contains only 2 items. + * An item can either be a menu or a button. + * DWT.BAR: creates a SoftBar with 2 menus + * DWT.BAR | DWT.BUTTON1: creates a SoftBar with 1 button + * for button1, and a menu for button2 + * DWT.BAR | DWT.BUTTON1 | DWT.BUTTON2: creates a SoftBar with + * 2 buttons + */ + if (OS.IsSP) { + /* Determine type of menubar */ + int nToolBarId; + if ((style & DWT.BUTTON1) !is 0) { + nToolBarId = ((style & DWT.BUTTON2) !is 0) ? ID_SPBB : ID_SPBM; + } else { + nToolBarId = ((style & DWT.BUTTON2) !is 0) ? ID_SPMB : ID_SPMM; + } + + /* Create SHMENUBAR */ + SHMENUBARINFO mbi = new SHMENUBARINFO (); + mbi.cbSize = SHMENUBARINFO.sizeof; + mbi.hwndParent = parent.handle; + mbi.dwFlags = OS.SHCMBF_HIDDEN; + mbi.nToolBarId = nToolBarId; /* as defined in .rc file */ + mbi.hInstRes = OS.GetLibraryHandle (); + if (!OS.SHCreateMenuBar (mbi)) error (DWT.ERROR_NO_HANDLES); + hwndCB = mbi.hwndMB; + + /* + * Feature on WinCE SmartPhone. The SHCMBF_HIDDEN flag causes the + * SHMENUBAR to not be drawn. However the keyboard events still go + * through it. The workaround is to also hide the SHMENUBAR with + * ShowWindow (). + */ + OS.ShowWindow (hwndCB, OS.SW_HIDE); + + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_COMMAND; + MenuItem item; + + /* Set first item */ + if (nToolBarId is ID_SPMM || nToolBarId is ID_SPMB) { + int hMenu = OS.SendMessage (hwndCB, OS.SHCMBM_GETSUBMENU, 0, ID_SPSOFTKEY0); + /* Remove the item from the resource file */ + OS.RemoveMenu (hMenu, 0, OS.MF_BYPOSITION); + Menu menu = new Menu (parent, DWT.DROP_DOWN, hMenu); + item = new MenuItem (this, menu, DWT.CASCADE, 0); + } else { + item = new MenuItem (this, null, DWT.PUSH, 0); + } + info.idCommand = id0 = item.id; + OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, ID_SPSOFTKEY0, info); + + /* Set second item */ + if (nToolBarId is ID_SPMM || nToolBarId is ID_SPBM) { + int hMenu = OS.SendMessage (hwndCB, OS.SHCMBM_GETSUBMENU, 0, ID_SPSOFTKEY1); + OS.RemoveMenu (hMenu, 0, OS.MF_BYPOSITION); + Menu menu = new Menu (parent, DWT.DROP_DOWN, hMenu); + item = new MenuItem (this, menu, DWT.CASCADE, 1); + } else { + item = new MenuItem (this, null, DWT.PUSH, 1); + } + info.idCommand = id1 = item.id; + OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, ID_SPSOFTKEY1, info); + + /* + * Override the Back key. For some reason, the owner of the menubar + * must be a Dialog or it won't receive the WM_HOTKEY message. As + * a result, Shell on WinCE SP must use the class Dialog. + */ + int dwMask = OS.SHMBOF_NODEFAULT | OS.SHMBOF_NOTIFY; + int lParam = dwMask << 16 | dwMask; + OS.SendMessage (hwndCB, OS.SHCMBM_OVERRIDEKEY, OS.VK_ESCAPE, lParam); + return; + } + handle = OS.CreateMenu (); + if (handle is 0) error (DWT.ERROR_NO_HANDLES); + if (OS.IsHPC) { + int hwndShell = parent.handle; + hwndCB = OS.CommandBar_Create (OS.GetModuleHandle (null), hwndShell, 1); + if (hwndCB is 0) error (DWT.ERROR_NO_HANDLES); + OS.CommandBar_Show (hwndCB, false); + OS.CommandBar_InsertMenubarEx (hwndCB, 0, handle, 0); + /* + * The command bar hosts the 'close' button when the window does not + * have a caption. + */ + if ((parent.style & DWT.CLOSE) !is 0 && (parent.style & DWT.TITLE) is 0) { + OS.CommandBar_AddAdornments (hwndCB, 0, 0); + } + } + } else { + handle = OS.CreatePopupMenu (); + if (handle is 0) error (DWT.ERROR_NO_HANDLES); + } +} + +void createItem (MenuItem item, int index) { + int count = GetMenuItemCount (handle); + if (!(0 <= index && index <= count)) error (DWT.ERROR_INVALID_RANGE); + display.addMenuItem (item); + bool success = false; + if ((OS.IsPPC || OS.IsSP) && hwndCB !is 0) { + if (OS.IsSP) return; + TBBUTTON lpButton = new TBBUTTON (); + lpButton.idCommand = item.id; + lpButton.fsStyle = (byte) OS.TBSTYLE_AUTOSIZE; + if ((item.style & DWT.CASCADE) !is 0) lpButton.fsStyle |= OS.TBSTYLE_DROPDOWN | 0x80; + if ((item.style & DWT.SEPARATOR) !is 0) lpButton.fsStyle = (byte) OS.BTNS_SEP; + lpButton.fsState = (byte) OS.TBSTATE_ENABLED; + lpButton.iBitmap = OS.I_IMAGENONE; + success = OS.SendMessage (hwndCB, OS.TB_INSERTBUTTON, index, lpButton) !is 0; + } else { + if (OS.IsWinCE) { + int uFlags = OS.MF_BYPOSITION; + TCHAR lpNewItem = null; + if ((item.style & DWT.SEPARATOR) !is 0) { + uFlags |= OS.MF_SEPARATOR; + } else { + lpNewItem = new TCHAR (0, " ", true); + } + success = OS.InsertMenu (handle, index, uFlags, item.id, lpNewItem); + if (success) { + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_DATA; + info.dwItemData = item.id; + success = OS.SetMenuItemInfo (handle, index, true, info); + } + } else { + /* + * Bug in Windows. For some reason, when InsertMenuItem() + * is used to insert an item without text, it is not possible + * to use SetMenuItemInfo() to set the text at a later time. + * The fix is to insert the item with some text. + * + * Feature in Windows. When an empty string is used instead + * of a space and InsertMenuItem() is used to set a submenu + * before setting text to a non-empty string, the menu item + * becomes unexpectedly disabled. The fix is to insert a + * space. + */ + int hHeap = OS.GetProcessHeap (); + TCHAR buffer = new TCHAR (0, " ", true); + int byteCount = buffer.length () * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_ID | OS.MIIM_TYPE | OS.MIIM_DATA; + info.wID = info.dwItemData = item.id; + info.fType = item.widgetStyle (); + info.dwTypeData = pszText; + success = OS.InsertMenuItem (handle, index, true, info); + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + } + } + if (!success) { + display.removeMenuItem (item); + error (DWT.ERROR_ITEM_NOT_ADDED); + } + redraw (); +} + +void createWidget () { + /* + * Bug in IBM JVM 1.3.1. For some reason, when the following code is called + * from this method, the JVM issues this error: + * + * JVM Exception 0x2 (subcode 0x0) occurred in thread "main" (TID:0x9F19D8) + * + * In addition, on Windows XP, a dialog appears with following error message, + * indicating that the problem may be in the JIT: + * + * AppName: java.exe AppVer: 0.0.0.0 ModName: jitc.dll + * ModVer: 0.0.0.0 Offset: 000b6912 + * + * The fix is to move the code to the caller of this method. + */ +// checkOrientation (parent); + createHandle (); + parent.addMenu (this); +} + +int defaultBackground () { + return OS.GetSysColor (OS.COLOR_MENU); +} + +int defaultForeground () { + return OS.GetSysColor (OS.COLOR_MENUTEXT); +} + +void destroyAccelerators () { + parent.destroyAccelerators (); +} + +void destroyItem (MenuItem item) { + if (OS.IsWinCE) { + if ((OS.IsPPC || OS.IsSP) && hwndCB !is 0) { + if (OS.IsSP) { + redraw(); + return; + } + int index = OS.SendMessage (hwndCB, OS.TB_COMMANDTOINDEX, item.id, 0); + if (OS.SendMessage (hwndCB, OS.TB_DELETEBUTTON, index, 0) is 0) { + error (DWT.ERROR_ITEM_NOT_REMOVED); + } + int count = OS.SendMessage (hwndCB, OS.TB_BUTTONCOUNT, 0, 0); + if (count is 0) { + if (imageList !is null) { + OS.SendMessage (handle, OS.TB_SETIMAGELIST, 0, 0); + display.releaseImageList (imageList); + imageList = null; + } + } + } else { + int index = 0; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_DATA; + while (OS.GetMenuItemInfo (handle, index, true, info)) { + if (info.dwItemData is item.id) break; + index++; + } + if (info.dwItemData !is item.id) { + error (DWT.ERROR_ITEM_NOT_REMOVED); + } + if (!OS.DeleteMenu (handle, index, OS.MF_BYPOSITION)) { + error (DWT.ERROR_ITEM_NOT_REMOVED); + } + } + } else { + if (!OS.DeleteMenu (handle, item.id, OS.MF_BYCOMMAND)) { + error (DWT.ERROR_ITEM_NOT_REMOVED); + } + } + redraw (); +} + +void destroyWidget () { + int hMenu = handle, hCB = hwndCB; + releaseHandle (); + if (OS.IsWinCE && hCB !is 0) { + OS.CommandBar_Destroy (hCB); + } else { + if (hMenu !is 0) OS.DestroyMenu (hMenu); + } +} + +void fixMenus (Decorations newParent) { + MenuItem [] items = getItems (); + for (int i=0; i<items.length; i++) { + items [i].fixMenus (newParent); + } + parent.removeMenu (this); + newParent.addMenu (this); + this.parent = newParent; +} + +/** + * Returns the receiver's background color. + * + * @return the background color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ Color getBackground () { + checkWidget (); + return Color.win32_new (display, background !is -1 ? background : defaultBackground ()); +} + +/** + * Returns the receiver's background image. + * + * @return the background image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ Image getBackgroundImage () { + checkWidget (); + return backgroundImage; +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent (or its display if its parent is null), + * unless the receiver is a menu or a shell. In this case, the + * location is relative to the display. + * <p> + * Note that the bounds of a menu or menu item are undefined when + * the menu is not visible. This is because most platforms compute + * the bounds of a menu dynamically just before it is displayed. + * </p> + * + * @return the receiver's bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +/*public*/ Rectangle getBounds () { + checkWidget (); + if (OS.IsWinCE) return new Rectangle (0, 0, 0, 0); + if ((style & DWT.BAR) !is 0) { + if (parent.menuBar !is this) { + return new Rectangle (0, 0, 0, 0); + } + int hwndShell = parent.handle; + MENUBARINFO info = new MENUBARINFO (); + info.cbSize = MENUBARINFO.sizeof; + if (OS.GetMenuBarInfo (hwndShell, OS.OBJID_MENU, 0, info)) { + int width = info.right - info.left; + int height = info.bottom - info.top; + return new Rectangle (info.left, info.top, width, height); + } + } else { + int count = GetMenuItemCount (handle); + if (count !is 0) { + RECT rect1 = new RECT (); + if (OS.GetMenuItemRect (0, handle, 0, rect1)) { + RECT rect2 = new RECT (); + if (OS.GetMenuItemRect (0, handle, count - 1, rect2)) { + int x = rect1.left - 2, y = rect1.top - 2; + int width = (rect2.right - rect2.left) + 4; + int height = (rect2.bottom - rect1.top) + 4; + return new Rectangle (x, y, width, height); + } + } + } + } + return new Rectangle (0, 0, 0, 0); +} + +/** + * Returns the default menu item or null if none has + * been previously set. + * + * @return the default menu item. + * + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public MenuItem getDefaultItem () { + checkWidget (); + if (OS.IsWinCE) return null; + int id = OS.GetMenuDefaultItem (handle, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED); + if (id is -1) return null; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_ID; + if (OS.GetMenuItemInfo (handle, id, false, info)) { + return display.getMenuItem (info.wID); + } + return null; +} + +/** + * Returns <code>true</code> if the receiver is enabled, and + * <code>false</code> otherwise. A disabled menu is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #isEnabled + */ +public bool getEnabled () { + checkWidget (); + return (state & DISABLED) is 0; +} + +/** + * Returns the foreground color that the receiver will use to draw. + * + * @return the receiver's foreground color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +/*public*/ Color getForeground () { + checkWidget (); + return Color.win32_new (display, foreground !is -1 ? foreground : defaultForeground ()); +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public MenuItem getItem (int index) { + checkWidget (); + int id = 0; + if ((OS.IsPPC || OS.IsSP) && hwndCB !is 0) { + if (OS.IsPPC) { + TBBUTTON lpButton = new TBBUTTON (); + int result = OS.SendMessage (hwndCB, OS.TB_GETBUTTON, index, lpButton); + if (result is 0) error (DWT.ERROR_CANNOT_GET_ITEM); + id = lpButton.idCommand; + } + if (OS.IsSP) { + if (!(0 <= index && index <= 1)) error (DWT.ERROR_CANNOT_GET_ITEM); + id = index is 0 ? id0 : id1; + } + } else { + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_DATA; + if (!OS.GetMenuItemInfo (handle, index, true, info)) { + error (DWT.ERROR_INVALID_RANGE); + } + id = info.dwItemData; + } + return display.getMenuItem (id); +} + +/** + * Returns the number of items contained in the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + return GetMenuItemCount (handle); +} + +/** + * Returns a (possibly empty) array of <code>MenuItem</code>s which + * are the items in the receiver. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public MenuItem [] getItems () { + checkWidget (); + if ((OS.IsPPC || OS.IsSP) && hwndCB !is 0) { + if (OS.IsSP) { + MenuItem [] result = new MenuItem [2]; + result[0] = display.getMenuItem (id0); + result[1] = display.getMenuItem (id1); + return result; + } + int count = OS.SendMessage (hwndCB, OS.TB_BUTTONCOUNT, 0, 0); + TBBUTTON lpButton = new TBBUTTON (); + MenuItem [] result = new MenuItem [count]; + for (int i=0; i<count; i++) { + OS.SendMessage (hwndCB, OS.TB_GETBUTTON, i, lpButton); + result [i] = display.getMenuItem (lpButton.idCommand); + } + return result; + } + int index = 0, count = 0; + int length = OS.IsWinCE ? 4 : OS.GetMenuItemCount (handle); + MenuItem [] items = new MenuItem [length]; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_DATA; + while (OS.GetMenuItemInfo (handle, index, true, info)) { + if (count is items.length) { + MenuItem [] newItems = new MenuItem [count + 4]; + System.arraycopy (items, 0, newItems, 0, count); + items = newItems; + } + MenuItem item = display.getMenuItem (info.dwItemData); + if (item !is null) items [count++] = item; + index++; + } + if (count is items.length) return items; + MenuItem [] result = new MenuItem [count]; + System.arraycopy (items, 0, result, 0, count); + return result; +} + +int GetMenuItemCount (int handle) { + if (OS.IsWinCE) { + if ((OS.IsPPC || OS.IsSP) && hwndCB !is 0) { + return OS.IsSP ? 2 : OS.SendMessage (hwndCB, OS.TB_BUTTONCOUNT, 0, 0); + } + int count = 0; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + while (OS.GetMenuItemInfo (handle, count, true, info)) count++; + return count; + } + return OS.GetMenuItemCount (handle); +} + +String getNameText () { + String result = ""; + MenuItem [] items = getItems (); + int length = items.length; + if (length > 0) { + for (int i=0; i<length-1; i++) { + result = result + items [i].getNameText() + ", "; + } + result = result + items [length-1].getNameText (); + } + return result; +} + +/** + * Returns the receiver's parent, which must be a <code>Decorations</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Decorations getParent () { + checkWidget (); + return parent; +} + +/** + * Returns the receiver's parent item, which must be a + * <code>MenuItem</code> or null when the receiver is a + * root. + * + * @return the receiver's parent item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public MenuItem getParentItem () { + checkWidget (); + return cascade; +} + +/** + * Returns the receiver's parent item, which must be a + * <code>Menu</code> or null when the receiver is a + * root. + * + * @return the receiver's parent item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Menu getParentMenu () { + checkWidget (); + if (cascade !is null) return cascade.parent; + return null; +} + +/** + * Returns the receiver's shell. For all controls other than + * shells, this simply returns the control's nearest ancestor + * shell. Shells return themselves, even if they are children + * of other shells. + * + * @return the receiver's shell + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getParent + */ +public Shell getShell () { + checkWidget (); + return parent.getShell (); +} + +/** + * Returns <code>true</code> if the receiver is visible, and + * <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getVisible () { + checkWidget (); + if ((style & DWT.BAR) !is 0) { + return this is parent.menuShell ().menuBar; + } + if ((style & DWT.POP_UP) !is 0) { + Menu [] popups = display.popups; + if (popups is null) return false; + for (int i=0; i<popups.length; i++) { + if (popups [i] is this) return true; + } + } + Shell shell = getShell (); + Menu menu = shell.activeMenu; + while (menu !is null && menu !is this) { + menu = menu.getParentMenu (); + } + return this is menu; +} + +int imageIndex (Image image) { + if (hwndCB is 0 || image is null) return OS.I_IMAGENONE; + if (imageList is null) { + Rectangle bounds = image.getBounds (); + imageList = display.getImageList (style & DWT.RIGHT_TO_LEFT, bounds.width, bounds.height); + int index = imageList.add (image); + int hImageList = imageList.getHandle (); + OS.SendMessage (hwndCB, OS.TB_SETIMAGELIST, 0, hImageList); + return index; + } + int index = imageList.indexOf (image); + if (index is -1) { + index = imageList.add (image); + } else { + imageList.put (index, image); + } + return index; +} + +/** + * Searches the receiver's list starting at the first item + * (index 0) until an item is found that is equal to the + * argument, and returns the index of that item. If no item + * is found, returns -1. + * + * @param item the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (MenuItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + if (item.parent !is this) return -1; + if ((OS.IsPPC || OS.IsSP) && hwndCB !is 0) { + if (OS.IsPPC) { + return OS.SendMessage (hwndCB, OS.TB_COMMANDTOINDEX, item.id, 0); + } + if (OS.IsSP) { + if (item.id is id0) return 0; + if (item.id is id1) return 1; + return -1; + } + } + int index = 0; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_DATA; + while (OS.GetMenuItemInfo (handle, index, true, info)) { + if (info.dwItemData is item.id) return index; + index++; + } + return -1; +} + +/** + * Returns <code>true</code> if the receiver is enabled and all + * of the receiver's ancestors are enabled, and <code>false</code> + * otherwise. A disabled menu is typically not selectable from the + * user interface and draws with an inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getEnabled + */ +public bool isEnabled () { + checkWidget (); + Menu parentMenu = getParentMenu (); + if (parentMenu is null) { + return getEnabled () && parent.isEnabled (); + } + return getEnabled () && parentMenu.isEnabled (); +} + +/** + * Returns <code>true</code> if the receiver is visible and all + * of the receiver's ancestors are visible and <code>false</code> + * otherwise. + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getVisible + */ +public bool isVisible () { + checkWidget (); + return getVisible (); +} + +void redraw () { + if (!isVisible ()) return; + if ((style & DWT.BAR) !is 0) { + display.addBar (this); + } else { + update (); + } +} + +void releaseHandle () { + super.releaseHandle (); + handle = hwndCB = 0; +} + +void releaseChildren (bool destroy) { + MenuItem [] items = getItems (); + for (int i=0; i<items.length; i++) { + MenuItem item = items [i]; + if (item !is null && !item.isDisposed ()) { + if (OS.IsPPC && hwndCB !is 0) { + item.dispose (); + } else { + item.release (false); + } + } + } + super.releaseChildren (destroy); +} + +void releaseParent () { + super.releaseParent (); + if (cascade !is null) cascade.releaseMenu (); + if ((style & DWT.BAR) !is 0) { + display.removeBar (this); + if (this is parent.menuBar) { + parent.setMenuBar (null); + } + } else { + if ((style & DWT.POP_UP) !is 0) { + display.removePopup (this); + } + } +} + +void releaseWidget () { + super.releaseWidget (); + backgroundImage = null; + if (hBrush is 0) OS.DeleteObject (hBrush); + hBrush = 0; + if (OS.IsPPC && hwndCB !is 0) { + if (imageList !is null) { + OS.SendMessage (hwndCB, OS.TB_SETIMAGELIST, 0, 0); + display.releaseToolImageList (imageList); + imageList = null; + } + } + if (parent !is null) parent.removeMenu (this); + parent = null; + cascade = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the help events are generated for the control. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see HelpListener + * @see #addHelpListener + */ +public void removeHelpListener (HelpListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Help, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the menu events are generated for the control. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MenuListener + * @see #addMenuListener + */ +public void removeMenuListener (MenuListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Hide, listener); + eventTable.unhook (DWT.Show, listener); +} + +/** + * Sets the receiver's background color to the color specified + * by the argument, or to the default system color for the control + * if the argument is null. + * + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ void setBackground (Color color) { + checkWidget (); + int pixel = -1; + if (color !is null) { + if (color.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); + pixel = color.handle; + } + if (pixel is background) return; + background = pixel; + updateBackground (); +} + +/** + * Sets the receiver's background image to the image specified + * by the argument, or to the default system color for the control + * if the argument is null. The background image is tiled to fill + * the available space. + * + * @param image the new image (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * <li>ERROR_INVALID_ARGUMENT - if the argument is not a bitmap</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ void setBackgroundImage (Image image) { + checkWidget (); + if (image !is null) { + if (image.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + if (image.type !is DWT.BITMAP) error (DWT.ERROR_INVALID_ARGUMENT); + } + if (backgroundImage is image) return; + backgroundImage = image; + updateBackground (); +} + +/** + * Sets the receiver's foreground color to the color specified + * by the argument, or to the default system color for the control + * if the argument is null. + * + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +/*public*/ void setForeground (Color color) { + checkWidget (); + int pixel = -1; + if (color !is null) { + if (color.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); + pixel = color.handle; + } + if (pixel is foreground) return; + foreground = pixel; + updateForeground (); +} + +/** + * Sets the default menu item to the argument or removes + * the default emphasis when the argument is <code>null</code>. + * + * @param item the default menu item or null + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the menu item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setDefaultItem (MenuItem item) { + checkWidget (); + int newID = -1; + if (item !is null) { + if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + if (item.parent !is this) return; + newID = item.id; + } + if (OS.IsWinCE) return; + int oldID = OS.GetMenuDefaultItem (handle, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED); + if (newID is oldID) return; + OS.SetMenuDefaultItem (handle, newID, OS.MF_BYCOMMAND); + redraw (); +} + +/** + * Enables the receiver if the argument is <code>true</code>, + * and disables it otherwise. A disabled menu is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @param enabled the new enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setEnabled (bool enabled) { + checkWidget (); + state &= ~DISABLED; + if (!enabled) state |= DISABLED; +} + +/** + * Sets the location of the receiver, which must be a popup, + * to the point specified by the arguments which are relative + * to the display. + * <p> + * Note that this is different from most widgets where the + * location of the widget is relative to the parent. + * </p><p> + * Note that the platform window manager ultimately has control + * over the location of popup menus. + * </p> + * + * @param x the new x coordinate for the receiver + * @param y the new y coordinate for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLocation (int x, int y) { + checkWidget (); + if ((style & (DWT.BAR | DWT.DROP_DOWN)) !is 0) return; + this.x = x; + this.y = y; + hasLocation = true; +} + +/** + * Sets the location of the receiver, which must be a popup, + * to the point specified by the argument which is relative + * to the display. + * <p> + * Note that this is different from most widgets where the + * location of the widget is relative to the parent. + * </p><p> + * Note that the platform window manager ultimately has control + * over the location of popup menus. + * </p> + * + * @param location the new location for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1 + */ +public void setLocation (Point location) { + checkWidget (); + if (location is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + setLocation (location.x, location.y); +} + +/** + * Marks the receiver as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param visible the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setVisible (bool visible) { + checkWidget (); + if ((style & (DWT.BAR | DWT.DROP_DOWN)) !is 0) return; + if (visible) { + display.addPopup (this); + } else { + display.removePopup (this); + _setVisible (false); + } +} + +void update () { + if (OS.IsPPC || OS.IsSP) return; + if (OS.IsHPC) { + /* + * Each time a menu has been modified, the command menu bar + * must be redrawn or it won't update properly. For example, + * a submenu will not drop down. + */ + Menu menuBar = parent.menuBar; + if (menuBar !is null) { + Menu menu = this; + while (menu !is null && menu !is menuBar) { + menu = menu.getParentMenu (); + } + if (menu is menuBar) { + OS.CommandBar_DrawMenuBar (menuBar.hwndCB, 0); + OS.CommandBar_Show (menuBar.hwndCB, true); + } + } + return; + } + if (OS.IsWinCE) return; + if ((style & DWT.BAR) !is 0) { + if (this is parent.menuBar) OS.DrawMenuBar (parent.handle); + return; + } + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) { + return; + } + bool hasCheck = false, hasImage = false; + MenuItem [] items = getItems (); + for (int i=0; i<items.length; i++) { + MenuItem item = items [i]; + if (item.image !is null) { + if ((hasImage = true) && hasCheck) break; + } + if ((item.style & (DWT.CHECK | DWT.RADIO)) !is 0) { + if ((hasCheck = true) && hasImage) break; + } + } + + /* + * Bug in Windows. If a menu contains items that have + * images and can be checked, Windows does not include + * the width of the image and the width of the check when + * computing the width of the menu. When the longest item + * does not have an image, the label and the accelerator + * text can overlap. The fix is to use SetMenuItemInfo() + * to indicate that all items have a bitmap and then include + * the width of the widest bitmap in WM_MEASURECHILD. + * + * NOTE: This work around causes problems on Windows 98. + * Under certain circumstances that have yet to be isolated, + * some menus can become huge and blank. For now, do not + * run the code on Windows 98. + * + * NOTE: This work around doesn't run on Vista because + * WM_MEASURECHILD and WM_DRAWITEM cause Vista to lose + * the menu theme. + */ + if (!OS.IsWin95) { + if (OS.WIN32_VERSION < OS.VERSION (6, 0)) { + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_BITMAP; + for (int i=0; i<items.length; i++) { + MenuItem item = items [i]; + if ((style & DWT.SEPARATOR) is 0) { + if (item.image is null || foreground !is -1) { + info.hbmpItem = hasImage || foreground !is -1 ? OS.HBMMENU_CALLBACK : 0; + OS.SetMenuItemInfo (handle, item.id, false, info); + } + } + } + } + } + + /* Update the menu to hide or show the space for bitmaps */ + MENUINFO lpcmi = new MENUINFO (); + lpcmi.cbSize = MENUINFO.sizeof; + lpcmi.fMask = OS.MIM_STYLE; + OS.GetMenuInfo (handle, lpcmi); + if (hasImage && !hasCheck) { + lpcmi.dwStyle |= OS.MNS_CHECKORBMP; + } else { + lpcmi.dwStyle &= ~OS.MNS_CHECKORBMP; + } + OS.SetMenuInfo (handle, lpcmi); +} + +void updateBackground () { + if (hBrush is 0) OS.DeleteObject (hBrush); + hBrush = 0; + if (backgroundImage !is null) { + hBrush = OS.CreatePatternBrush (backgroundImage.handle); + } else { + if (background !is -1) hBrush = OS.CreateSolidBrush (background); + } + MENUINFO lpcmi = new MENUINFO (); + lpcmi.cbSize = MENUINFO.sizeof; + lpcmi.fMask = OS.MIM_BACKGROUND; + lpcmi.hbrBack = hBrush; + OS.SetMenuInfo (handle, lpcmi); +} + +void updateForeground () { + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + int index = 0; + while (OS.GetMenuItemInfo (handle, index, true, info)) { + info.fMask = OS.MIIM_BITMAP; + info.hbmpItem = OS.HBMMENU_CALLBACK; + OS.SetMenuItemInfo (handle, index, true, info); + index++; + } + redraw (); +} +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/MenuItem.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1221 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.MenuItem; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class MenuItem : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ArmListener; +import dwt.events.HelpListener; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Image; +import dwt.graphics.Rectangle; +import dwt.internal.win32.ACCEL; +import dwt.internal.win32.DRAWITEMSTRUCT; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MEASUREITEMSTRUCT; +import dwt.internal.win32.MENUBARINFO; +import dwt.internal.win32.MENUINFO; +import dwt.internal.win32.MENUITEMINFO; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TBBUTTONINFO; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class represent a selectable user interface object + * that issues notification when pressed and released. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>CHECK, CASCADE, PUSH, RADIO, SEPARATOR</dd> + * <dt><b>Events:</b></dt> + * <dd>Arm, Help, Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles CHECK, CASCADE, PUSH, RADIO and SEPARATOR + * may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class MenuItem extends Item { + Menu parent, menu; + int hBitmap, id, accelerator; + /* + * Feature in Windows. On Windows 98, it is necessary + * to add 4 pixels to the width of the image or the image + * and text are too close. On other Windows platforms, + * this causes the text of the longest item to touch the + * accelerator text. The fix is to use smaller margins + * everywhere but on Windows 98. + */ + final static int MARGIN_WIDTH = OS.IsWin95 ? 2 : 1; + final static int MARGIN_HEIGHT = OS.IsWin95 ? 2 : 1; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Menu</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a menu control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#CHECK + * @see DWT#CASCADE + * @see DWT#PUSH + * @see DWT#RADIO + * @see DWT#SEPARATOR + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public MenuItem (Menu parent, int style) { + super (parent, checkStyle (style)); + this.parent = parent; + parent.createItem (this, parent.getItemCount ()); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Menu</code>), a style value + * describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a menu control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#CHECK + * @see DWT#CASCADE + * @see DWT#PUSH + * @see DWT#RADIO + * @see DWT#SEPARATOR + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public MenuItem (Menu parent, int style, int index) { + super (parent, checkStyle (style)); + this.parent = parent; + parent.createItem (this, index); +} + +MenuItem (Menu parent, Menu menu, int style, int index) { + super (parent, checkStyle (style)); + this.parent = parent; + this.menu = menu; + if (menu !is null) menu.cascade = this; + display.addMenuItem (this); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the arm events are generated for the control, by sending + * it one of the messages defined in the <code>ArmListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ArmListener + * @see #removeArmListener + */ +public void addArmListener (ArmListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Arm, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the help events are generated for the control, by sending + * it one of the messages defined in the <code>HelpListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see HelpListener + * @see #removeHelpListener + */ +public void addHelpListener (HelpListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Help, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the menu item is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called, the stateMask field of the event object is valid. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the menu item is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener(listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +static int checkStyle (int style) { + return checkBits (style, DWT.PUSH, DWT.CHECK, DWT.RADIO, DWT.SEPARATOR, DWT.CASCADE, 0); +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +void fillAccel (ACCEL accel) { + accel.fVirt = 0; + accel.cmd = accel.key = 0; + if (accelerator is 0 || !getEnabled ()) return; + int fVirt = OS.FVIRTKEY; + int key = accelerator & DWT.KEY_MASK; + int vKey = Display.untranslateKey (key); + if (vKey !is 0) { + key = vKey; + } else { + switch (key) { + /* + * Bug in Windows. For some reason, VkKeyScan + * fails to map ESC to VK_ESCAPE and DEL to + * VK_DELETE. The fix is to map these keys + * as a special case. + */ + case 27: key = OS.VK_ESCAPE; break; + case 127: key = OS.VK_DELETE; break; + default: { + key = Display.wcsToMbcs ((char) key); + if (key is 0) return; + if (OS.IsWinCE) { + key = OS.CharUpper ((short) key); + } else { + vKey = OS.VkKeyScan ((short) key) & 0xFF; + if (vKey is -1) { + fVirt = 0; + } else { + key = vKey; + } + } + } + } + } + accel.key = (short) key; + accel.cmd = (short) id; + accel.fVirt = (byte) fVirt; + if ((accelerator & DWT.ALT) !is 0) accel.fVirt |= OS.FALT; + if ((accelerator & DWT.SHIFT) !is 0) accel.fVirt |= OS.FSHIFT; + if ((accelerator & DWT.CONTROL) !is 0) accel.fVirt |= OS.FCONTROL; +} + +void fixMenus (Decorations newParent) { + if (menu !is null) menu.fixMenus (newParent); +} + +/** + * Returns the widget accelerator. An accelerator is the bit-wise + * OR of zero or more modifier masks and a key. Examples: + * <code>DWT.CONTROL | DWT.SHIFT | 'T', DWT.ALT | DWT.F2</code>. + * The default value is zero, indicating that the menu item does + * not have an accelerator. + * + * @return the accelerator or 0 + * + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getAccelerator () { + checkWidget (); + return accelerator; +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent (or its display if its parent is null). + * + * @return the receiver's bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +/*public*/ Rectangle getBounds () { + checkWidget (); + if (OS.IsWinCE) return new Rectangle (0, 0, 0, 0); + int index = parent.indexOf (this); + if (index is -1) return new Rectangle (0, 0, 0, 0); + if ((parent.style & DWT.BAR) !is 0) { + Decorations shell = parent.parent; + if (shell.menuBar !is parent) { + return new Rectangle (0, 0, 0, 0); + } + int hwndShell = shell.handle; + MENUBARINFO info1 = new MENUBARINFO (); + info1.cbSize = MENUBARINFO.sizeof; + if (!OS.GetMenuBarInfo (hwndShell, OS.OBJID_MENU, 1, info1)) { + return new Rectangle (0, 0, 0, 0); + } + MENUBARINFO info2 = new MENUBARINFO (); + info2.cbSize = MENUBARINFO.sizeof; + if (!OS.GetMenuBarInfo (hwndShell, OS.OBJID_MENU, index + 1, info2)) { + return new Rectangle (0, 0, 0, 0); + } + int x = info2.left - info1.left; + int y = info2.top - info1.top; + int width = info2.right - info2.left; + int height = info2.bottom - info2.top; + return new Rectangle (x, y, width, height); + } else { + int hMenu = parent.handle; + RECT rect1 = new RECT (); + if (!OS.GetMenuItemRect (0, hMenu, 0, rect1)) { + return new Rectangle (0, 0, 0, 0); + } + RECT rect2 = new RECT (); + if (!OS.GetMenuItemRect (0, hMenu, index, rect2)) { + return new Rectangle (0, 0, 0, 0); + } + int x = rect2.left - rect1.left + 2; + int y = rect2.top - rect1.top + 2; + int width = rect2.right - rect2.left; + int height = rect2.bottom - rect2.top; + return new Rectangle (x, y, width, height); + } +} + +/** + * Returns <code>true</code> if the receiver is enabled, and + * <code>false</code> otherwise. A disabled menu item is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #isEnabled + */ +public bool getEnabled () { + checkWidget (); + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB !is 0) { + int hwndCB = parent.hwndCB; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_STATE; + OS.SendMessage (hwndCB, OS.TB_GETBUTTONINFO, id, info); + return (info.fsState & OS.TBSTATE_ENABLED) !is 0; + } + int hMenu = parent.handle; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_STATE; + bool success; + if (OS.IsWinCE) { + int index = parent.indexOf (this); + if (index is -1) error (DWT.ERROR_CANNOT_GET_ENABLED); + success = OS.GetMenuItemInfo (hMenu, index, true, info); + } else { + success = OS.GetMenuItemInfo (hMenu, id, false, info); + } + if (!success) error (DWT.ERROR_CANNOT_GET_ENABLED); + return (info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) is 0; +} + +/** + * Returns the receiver's cascade menu if it has one or null + * if it does not. Only <code>CASCADE</code> menu items can have + * a pull down menu. The sequence of key strokes, button presses + * and/or button releases that are used to request a pull down + * menu is platform specific. + * + * @return the receiver's menu + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Menu getMenu () { + checkWidget (); + return menu; +} + +String getNameText () { + if ((style & DWT.SEPARATOR) !is 0) return "|"; + return super.getNameText (); +} + +/** + * Returns the receiver's parent, which must be a <code>Menu</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Menu getParent () { + checkWidget (); + return parent; +} + +/** + * Returns <code>true</code> if the receiver is selected, + * and false otherwise. + * <p> + * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, + * it is selected when it is checked. + * + * @return the selection state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getSelection () { + checkWidget (); + if ((style & (DWT.CHECK | DWT.RADIO)) is 0) return false; + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB !is 0) return false; + int hMenu = parent.handle; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_STATE; + bool success = OS.GetMenuItemInfo (hMenu, id, false, info); + if (!success) error (DWT.ERROR_CANNOT_GET_SELECTION); + return (info.fState & OS.MFS_CHECKED) !is0; +} + +/** + * Returns <code>true</code> if the receiver is enabled and all + * of the receiver's ancestors are enabled, and <code>false</code> + * otherwise. A disabled menu item is typically not selectable from the + * user interface and draws with an inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getEnabled + */ +public bool isEnabled () { + return getEnabled () && parent.isEnabled (); +} + +void releaseChildren (bool destroy) { + if (menu !is null) { + menu.release (false); + menu = null; + } + super.releaseChildren (destroy); +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; + id = -1; +} + +void releaseMenu () { + if (!OS.IsSP) setMenu (null); + menu = null; +} + +void releaseParent () { + super.releaseParent (); + if (menu !is null) menu.dispose (); + menu = null; +} + +void releaseWidget () { + super.releaseWidget (); + if (hBitmap !is 0) OS.DeleteObject (hBitmap); + hBitmap = 0; + if (accelerator !is 0) { + parent.destroyAccelerators (); + } + accelerator = 0; + display.removeMenuItem (this); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the arm events are generated for the control. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ArmListener + * @see #addArmListener + */ +public void removeArmListener (ArmListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Arm, listener); +} +/** + * Removes the listener from the collection of listeners who will + * be notified when the help events are generated for the control. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see HelpListener + * @see #addHelpListener + */ +public void removeHelpListener (HelpListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Help, listener); +} +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +void selectRadio () { + int index = 0; + MenuItem [] items = parent.getItems (); + while (index < items.length && items [index] !is this) index++; + int i = index - 1; + while (i >= 0 && items [i].setRadioSelection (false)) --i; + int j = index + 1; + while (j < items.length && items [j].setRadioSelection (false)) j++; + setSelection (true); +} + +/** + * Sets the widget accelerator. An accelerator is the bit-wise + * OR of zero or more modifier masks and a key. Examples: + * <code>DWT.MOD1 | DWT.MOD2 | 'T', DWT.MOD3 | DWT.F2</code>. + * <code>DWT.CONTROL | DWT.SHIFT | 'T', DWT.ALT | DWT.F2</code>. + * The default value is zero, indicating that the menu item does + * not have an accelerator. + * + * @param accelerator an integer that is the bit-wise OR of masks and a key + * + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setAccelerator (int accelerator) { + checkWidget (); + if (this.accelerator is accelerator) return; + this.accelerator = accelerator; + parent.destroyAccelerators (); +} + +/** + * Enables the receiver if the argument is <code>true</code>, + * and disables it otherwise. A disabled menu item is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @param enabled the new enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setEnabled (bool enabled) { + checkWidget (); + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB !is 0) { + int hwndCB = parent.hwndCB; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_STATE; + OS.SendMessage (hwndCB, OS.TB_GETBUTTONINFO, id, info); + info.fsState &= ~OS.TBSTATE_ENABLED; + if (enabled) info.fsState |= OS.TBSTATE_ENABLED; + OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, id, info); + } else { + int hMenu = parent.handle; + if (OS.IsWinCE) { + int index = parent.indexOf (this); + if (index is -1) return; + int uEnable = OS.MF_BYPOSITION | (enabled ? OS.MF_ENABLED : OS.MF_GRAYED); + OS.EnableMenuItem (hMenu, index, uEnable); + } else { + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_STATE; + bool success = OS.GetMenuItemInfo (hMenu, id, false, info); + if (!success) error (DWT.ERROR_CANNOT_SET_ENABLED); + int bits = OS.MFS_DISABLED | OS.MFS_GRAYED; + if (enabled) { + if ((info.fState & bits) is 0) return; + info.fState &= ~bits; + } else { + if ((info.fState & bits) is bits) return; + info.fState |= bits; + } + success = OS.SetMenuItemInfo (hMenu, id, false, info); + if (!success) { + /* + * Bug in Windows. For some reason SetMenuItemInfo(), + * returns a fail code when setting the enabled or + * selected state of a default item, but sets the + * state anyway. The fix is to ignore the error. + * + * NOTE: This only happens on Vista. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + success = id is OS.GetMenuDefaultItem (hMenu, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED); + } + if (!success) error (DWT.ERROR_CANNOT_SET_ENABLED); + } + } + } + parent.destroyAccelerators (); + parent.redraw (); +} + +/** + * Sets the image the receiver will display to the argument. + * <p> + * Note: This operation is a hint and is not supported on + * platforms that do not have this concept (for example, Windows NT). + * </p> + * + * @param image the image to display + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (Image image) { + checkWidget (); + if ((style & DWT.SEPARATOR) !is 0) return; + super.setImage (image); + if (OS.IsWinCE) { + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB !is 0) { + int hwndCB = parent.hwndCB; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_IMAGE; + info.iImage = parent.imageIndex (image); + OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, id, info); + } + return; + } + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_BITMAP; + if (parent.foreground !is -1) { + info.hbmpItem = OS.HBMMENU_CALLBACK; + } else { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + if (hBitmap !is 0) OS.DeleteObject (hBitmap); + info.hbmpItem = hBitmap = image !is null ? Display.create32bitDIB (image) : 0; + } else { + info.hbmpItem = OS.HBMMENU_CALLBACK; + } + } + int hMenu = parent.handle; + OS.SetMenuItemInfo (hMenu, id, false, info); + parent.redraw (); +} + +/** + * Sets the receiver's pull down menu to the argument. + * Only <code>CASCADE</code> menu items can have a + * pull down menu. The sequence of key strokes, button presses + * and/or button releases that are used to request a pull down + * menu is platform specific. + * <p> + * Note: Disposing of a menu item that has a pull down menu + * will dispose of the menu. To avoid this behavior, set the + * menu to null before the menu item is disposed. + * </p> + * + * @param menu the new pull down menu + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_MENU_NOT_DROP_DOWN - if the menu is not a drop down menu</li> + * <li>ERROR_MENUITEM_NOT_CASCADE - if the menu item is not a <code>CASCADE</code></li> + * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li> + * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMenu (Menu menu) { + checkWidget (); + + /* Check to make sure the new menu is valid */ + if ((style & DWT.CASCADE) is 0) { + error (DWT.ERROR_MENUITEM_NOT_CASCADE); + } + if (menu !is null) { + if (menu.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + if ((menu.style & DWT.DROP_DOWN) is 0) { + error (DWT.ERROR_MENU_NOT_DROP_DOWN); + } + if (menu.parent !is parent.parent) { + error (DWT.ERROR_INVALID_PARENT); + } + } + + /* Assign the new menu */ + Menu oldMenu = this.menu; + if (oldMenu is menu) return; + if (oldMenu !is null) oldMenu.cascade = null; + this.menu = menu; + + /* Assign the new menu in the OS */ + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB !is 0) { + if (OS.IsPPC) { + int hwndCB = parent.hwndCB; + int hMenu = menu is null ? 0 : menu.handle; + OS.SendMessage (hwndCB, OS.SHCMBM_SETSUBMENU, id, hMenu); + } + if (OS.IsSP) error (DWT.ERROR_CANNOT_SET_MENU); + } else { + /* + * Feature in Windows. When SetMenuItemInfo () is used to + * set a submenu and the menu item already has a submenu, + * Windows destroys the previous menu. This is undocumented + * and unexpected but not necessarily wrong. The fix is to + * remove the item with RemoveMenu () which does not destroy + * the submenu and then insert the item with InsertMenuItem (). + */ + int hMenu = parent.handle; + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_DATA; + int index = 0; + while (OS.GetMenuItemInfo (hMenu, index, true, info)) { + if (info.dwItemData is id) break; + index++; + } + if (info.dwItemData !is id) return; + bool restoreBitmap = false, success = false; + + /* + * Bug in Windows. When GetMenuItemInfo() is used to get the text, + * for an item that has a bitmap set using MIIM_BITMAP, the text is + * not returned. This means that when SetMenuItemInfo() is used to + * set the submenu and the current menu state, the text is lost. + * The fix is to temporarily remove the bitmap and restore it after + * the text and submenu have been set. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + info.fMask = OS.MIIM_BITMAP; + OS.GetMenuItemInfo (hMenu, index, true, info); + restoreBitmap = info.hbmpItem !is 0 || parent.foreground !is -1; + if (restoreBitmap) { + info.hbmpItem = 0; + success = OS.SetMenuItemInfo (hMenu, id, false, info); + } + } + + int cch = 128; + int hHeap = OS.GetProcessHeap (); + int byteCount = cch * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + info.fMask = OS.MIIM_STATE | OS.MIIM_ID | OS.MIIM_TYPE | OS.MIIM_DATA; + info.dwTypeData = pszText; + info.cch = cch; + success = OS.GetMenuItemInfo (hMenu, index, true, info); + if (menu !is null) { + menu.cascade = this; + info.fMask |= OS.MIIM_SUBMENU; + info.hSubMenu = menu.handle; + } + OS.RemoveMenu (hMenu, index, OS.MF_BYPOSITION); + if (OS.IsWinCE) { + /* + * On WinCE, InsertMenuItem() is not available. The fix is to + * use SetMenuItemInfo() but this call does not set the menu item + * state and submenu. The fix is to use InsertMenu() to insert + * the item, SetMenuItemInfo() to set the string and EnableMenuItem() + * and CheckMenuItem() to set the state. + */ + int uIDNewItem = id; + int uFlags = OS.MF_BYPOSITION; + if (menu !is null) { + uFlags |= OS.MF_POPUP; + uIDNewItem = menu.handle; + } + TCHAR lpNewItem = new TCHAR (0, " ", true); + success = OS.InsertMenu (hMenu, index, uFlags, uIDNewItem, lpNewItem); + if (success) { + info.fMask = OS.MIIM_DATA | OS.MIIM_TYPE; + success = OS.SetMenuItemInfo (hMenu, index, true, info); + if ((info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) !is 0) { + OS.EnableMenuItem (hMenu, index, OS.MF_BYPOSITION | OS.MF_GRAYED); + } + if ((info.fState & OS.MFS_CHECKED) !is 0) { + OS.CheckMenuItem (hMenu, index, OS.MF_BYPOSITION | OS.MF_CHECKED); + } + } + } else { + success = OS.InsertMenuItem (hMenu, index, true, info); + /* + * Restore the bitmap that was removed to work around a problem + * in GetMenuItemInfo() and menu items that have bitmaps set with + * MIIM_BITMAP. + */ + if (OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + if (restoreBitmap) { + info.fMask = OS.MIIM_BITMAP; + if (parent.foreground !is -1) { + info.hbmpItem = OS.HBMMENU_CALLBACK; + } else { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + info.hbmpItem = hBitmap; + } else { + info.hbmpItem = OS.HBMMENU_CALLBACK; + } + } + success = OS.SetMenuItemInfo (hMenu, id, false, info); + } + } + } + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + if (!success) error (DWT.ERROR_CANNOT_SET_MENU); + } + parent.destroyAccelerators (); +} + +bool setRadioSelection (bool value) { + if ((style & DWT.RADIO) is 0) return false; + if (getSelection () !is value) { + setSelection (value); + postEvent (DWT.Selection); + } + return true; +} + +/** + * Sets the selection state of the receiver. + * <p> + * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, + * it is selected when it is checked. + * + * @param selected the new selection state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (bool selected) { + checkWidget (); + if ((style & (DWT.CHECK | DWT.RADIO)) is 0) return; + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB !is 0) return; + int hMenu = parent.handle; + if (OS.IsWinCE) { + int index = parent.indexOf (this); + if (index is -1) return; + int uCheck = OS.MF_BYPOSITION | (selected ? OS.MF_CHECKED : OS.MF_UNCHECKED); + OS.CheckMenuItem (hMenu, index, uCheck); + } else { + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + info.fMask = OS.MIIM_STATE; + bool success = OS.GetMenuItemInfo (hMenu, id, false, info); + if (!success) error (DWT.ERROR_CANNOT_SET_SELECTION); + info.fState &= ~OS.MFS_CHECKED; + if (selected) info.fState |= OS.MFS_CHECKED; + success = OS.SetMenuItemInfo (hMenu, id, false, info); + if (!success) { + /* + * Bug in Windows. For some reason SetMenuItemInfo(), + * returns a fail code when setting the enabled or + * selected state of a default item, but sets the + * state anyway. The fix is to ignore the error. + * + * NOTE: This only happens on Vista. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + success = id is OS.GetMenuDefaultItem (hMenu, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED); + } + if (!success) error (DWT.ERROR_CANNOT_SET_SELECTION); + } + } + parent.redraw (); +} +/** + * Sets the receiver's text. The string may include + * the mnemonic character and accelerator text. + * <p> + * Mnemonics are indicated by an '&' that causes the next + * character to be the mnemonic. When the user presses a + * key sequence that matches the mnemonic, a selection + * event occurs. On most platforms, the mnemonic appears + * underlined but may be emphasised in a platform specific + * manner. The mnemonic indicator character '&' can be + * escaped by doubling it in the string, causing a single + * '&' to be displayed. + * </p> + * <p> + * Accelerator text is indicated by the '\t' character. + * On platforms that support accelerator text, the text + * that follows the '\t' character is displayed to the user, + * typically indicating the key stroke that will cause + * the item to become selected. On most platforms, the + * accelerator text appears right aligned in the menu. + * Setting the accelerator text does not install the + * accelerator key sequence. The accelerator key sequence + * is installed using #setAccelerator. + * </p> + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setAccelerator + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if ((style & DWT.SEPARATOR) !is 0) return; + if (text.equals (string)) return; + super.setText (string); + int hHeap = OS.GetProcessHeap (); + int pszText = 0; + bool success = false; + if ((OS.IsPPC || OS.IsSP) && parent.hwndCB !is 0) { + /* + * Bug in WinCE PPC. Tool items on the menubar don't resize + * correctly when the character '&' is used (even when it + * is a sequence '&&'). The fix is to remove all '&' from + * the string. + */ + if (string.indexOf ('&') !is -1) { + int length = string.length (); + char[] text = new char [length]; + string.getChars( 0, length, text, 0); + int i = 0, j = 0; + for (i=0; i<length; i++) { + if (text[i] !is '&') text [j++] = text [i]; + } + if (j < i) string = new String (text, 0, j); + } + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, string, true); + int byteCount = buffer.length () * TCHAR.sizeof; + pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + int hwndCB = parent.hwndCB; + TBBUTTONINFO info2 = new TBBUTTONINFO (); + info2.cbSize = TBBUTTONINFO.sizeof; + info2.dwMask = OS.TBIF_TEXT; + info2.pszText = pszText; + success = OS.SendMessage (hwndCB, OS.TB_SETBUTTONINFO, id, info2) !is 0; + } else { + MENUITEMINFO info = new MENUITEMINFO (); + info.cbSize = MENUITEMINFO.sizeof; + int hMenu = parent.handle; + + /* + * Bug in Windows 2000. For some reason, when MIIM_TYPE is set + * on a menu item that also has MIIM_BITMAP, the MIIM_TYPE clears + * the MIIM_BITMAP style. The fix is to reset both MIIM_BITMAP. + * Note, this does not happen on Windows 98. + */ + bool restoreBitmap = false; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + info.fMask = OS.MIIM_BITMAP; + OS.GetMenuItemInfo (hMenu, id, false, info); + restoreBitmap = info.hbmpItem !is 0 || parent.foreground !is -1; + } + + /* Use the character encoding for the default locale */ + TCHAR buffer = new TCHAR (0, string, true); + int byteCount = buffer.length () * TCHAR.sizeof; + pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + info.fMask = OS.MIIM_TYPE; + info.fType = widgetStyle (); + info.dwTypeData = pszText; + success = OS.SetMenuItemInfo (hMenu, id, false, info); + + /* + * Restore the bitmap that was removed to work around a problem + * in GetMenuItemInfo() and menu items that have bitmaps set with + * MIIM_BITMAP. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + if (restoreBitmap) { + info.fMask = OS.MIIM_BITMAP; + if (parent.foreground !is -1) { + info.hbmpItem = OS.HBMMENU_CALLBACK; + } else { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + info.hbmpItem = hBitmap; + } else { + info.hbmpItem = OS.HBMMENU_CALLBACK; + } + } + success = OS.SetMenuItemInfo (hMenu, id, false, info); + } + } + } + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + if (!success) error (DWT.ERROR_CANNOT_SET_TEXT); + parent.redraw (); +} + +int widgetStyle () { + int bits = 0; + Decorations shell = parent.parent; + if ((shell.style & DWT.MIRRORED) !is 0) { + if ((parent.style & DWT.LEFT_TO_RIGHT) !is 0) { + bits |= OS.MFT_RIGHTJUSTIFY | OS.MFT_RIGHTORDER; + } + } else { + if ((parent.style & DWT.RIGHT_TO_LEFT) !is 0) { + bits |= OS.MFT_RIGHTJUSTIFY | OS.MFT_RIGHTORDER; + } + } + if ((style & DWT.SEPARATOR) !is 0) return bits | OS.MFT_SEPARATOR; + if ((style & DWT.RADIO) !is 0) return bits | OS.MFT_RADIOCHECK; + return bits | OS.MFT_STRING; +} + +LRESULT wmCommandChild (int wParam, int lParam) { + if ((style & DWT.CHECK) !is 0) { + setSelection (!getSelection ()); + } else { + if ((style & DWT.RADIO) !is 0) { + if ((parent.getStyle () & DWT.NO_RADIO_GROUP) !is 0) { + setSelection (!getSelection ()); + } else { + selectRadio (); + } + } + } + Event event = new Event (); + setInputState (event, DWT.Selection); + postEvent (DWT.Selection, event); + return null; +} + +LRESULT wmDrawChild (int wParam, int lParam) { + DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT (); + OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof); + if (image !is null) { + GCData data = new GCData(); + data.device = display; + GC gc = GC.win32_new (struct.hDC, data); + /* + * Bug in Windows. When a bitmap is included in the + * menu bar, the HDC seems to already include the left + * coordinate. The fix is to ignore this value when + * the item is in a menu bar. + */ + int x = (parent.style & DWT.BAR) !is 0 ? MARGIN_WIDTH * 2 : struct.left; + Image image = getEnabled () ? this.image : new Image (display, this.image, DWT.IMAGE_DISABLE); + gc.drawImage (image, x, struct.top + MARGIN_HEIGHT); + if (this.image !is image) image.dispose (); + gc.dispose (); + } + if (parent.foreground !is -1) OS.SetTextColor (struct.hDC, parent.foreground); + return null; +} + +LRESULT wmMeasureChild (int wParam, int lParam) { + MEASUREITEMSTRUCT struct = new MEASUREITEMSTRUCT (); + OS.MoveMemory (struct, lParam, MEASUREITEMSTRUCT.sizeof); + int width = 0, height = 0; + if (image !is null) { + Rectangle rect = image.getBounds (); + width = rect.width; + height = rect.height; + } else { + /* + * Bug in Windows. If a menu contains items that have + * images and can be checked, Windows does not include + * the width of the image and the width of the check when + * computing the width of the menu. When the longest item + * does not have an image, the label and the accelerator + * text can overlap. The fix is to use SetMenuItemInfo() + * to indicate that all items have a bitmap and then include + * the width of the widest bitmap in WM_MEASURECHILD. + */ + MENUINFO lpcmi = new MENUINFO (); + lpcmi.cbSize = MENUINFO.sizeof; + lpcmi.fMask = OS.MIM_STYLE; + int hMenu = parent.handle; + OS.GetMenuInfo (hMenu, lpcmi); + if ((lpcmi.dwStyle & OS.MNS_CHECKORBMP) is 0) { + MenuItem [] items = parent.getItems (); + for (int i=0; i<items.length; i++) { + MenuItem item = items [i]; + if (item.image !is null) { + Rectangle rect = item.image.getBounds (); + width = Math.max (width, rect.width); + } + } + } + } + if (width !is 0 || height !is 0) { + struct.itemWidth = width + MARGIN_WIDTH * 2; + struct.itemHeight = height + MARGIN_HEIGHT * 2; + OS.MoveMemory (lParam, struct, MEASUREITEMSTRUCT.sizeof); + } + return null; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/MessageBox.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,262 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.MessageBox; + +import dwt.widgets.Dialog; +import dwt.widgets.Shell; + +class MessageBox : Dialog { + public this (Shell parent, int style) { + super (parent, style); + } +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.internal.win32.OS; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class are used to inform or warn the user. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, ICON_WARNING, ICON_WORKING</dd> + * <dd>OK, OK | CANCEL</dd> + * <dd>YES | NO, YES | NO | CANCEL</dd> + * <dd>RETRY | CANCEL</dd> + * <dd>ABORT | RETRY | IGNORE</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of the styles ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, + * ICON_WARNING and ICON_WORKING may be specified. + * </p><p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ +public class MessageBox extends Dialog { + String message = ""; + +/** + * Constructs a new instance of this class given only its parent. + * + * @param parent a shell which will be the parent of the new instance + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public MessageBox (Shell parent) { + this (parent, DWT.OK | DWT.ICON_INFORMATION | DWT.APPLICATION_MODAL); +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * + * @param parent a shell which will be the parent of the new instance + * @param style the style of dialog to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public MessageBox (Shell parent, int style) { + super (parent, checkStyle (style)); + checkSubclass (); +} + +static int checkStyle (int style) { + if ((style & (DWT.PRIMARY_MODAL | DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) is 0) style |= DWT.APPLICATION_MODAL; + int mask = (DWT.YES | DWT.NO | DWT.OK | DWT.CANCEL | DWT.ABORT | DWT.RETRY | DWT.IGNORE); + int bits = style & mask; + if (bits is DWT.OK || bits is DWT.CANCEL || bits is (DWT.OK | DWT.CANCEL)) return style; + if (bits is DWT.YES || bits is DWT.NO || bits is (DWT.YES | DWT.NO) || bits is (DWT.YES | DWT.NO | DWT.CANCEL)) return style; + if (bits is (DWT.RETRY | DWT.CANCEL) || bits is (DWT.ABORT | DWT.RETRY | DWT.IGNORE)) return style; + style = (style & ~mask) | DWT.OK; + return style; +} + +/** + * Returns the dialog's message, or an empty string if it does not have one. + * The message is a description of the purpose for which the dialog was opened. + * This message will be visible in the dialog while it is open. + * + * @return the message + */ +public String getMessage () { + return message; +} + +/** + * Makes the dialog visible and brings it to the front + * of the display. + * + * @return the ID of the button that was selected to dismiss the + * message box (e.g. DWT.OK, DWT.CANCEL, etc.) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li> + * </ul> + */ +public int open () { + + /* Compute the MessageBox style */ + int buttonBits = 0; + if ((style & DWT.OK) is DWT.OK) buttonBits = OS.MB_OK; + if ((style & (DWT.OK | DWT.CANCEL)) is (DWT.OK | DWT.CANCEL)) buttonBits = OS.MB_OKCANCEL; + if ((style & (DWT.YES | DWT.NO)) is (DWT.YES | DWT.NO)) buttonBits = OS.MB_YESNO; + if ((style & (DWT.YES | DWT.NO | DWT.CANCEL)) is (DWT.YES | DWT.NO | DWT.CANCEL)) buttonBits = OS.MB_YESNOCANCEL; + if ((style & (DWT.RETRY | DWT.CANCEL)) is (DWT.RETRY | DWT.CANCEL)) buttonBits = OS.MB_RETRYCANCEL; + if ((style & (DWT.ABORT | DWT.RETRY | DWT.IGNORE)) is (DWT.ABORT | DWT.RETRY | DWT.IGNORE)) buttonBits = OS.MB_ABORTRETRYIGNORE; + if (buttonBits is 0) buttonBits = OS.MB_OK; + + int iconBits = 0; + if ((style & DWT.ICON_ERROR) !is 0) iconBits = OS.MB_ICONERROR; + if ((style & DWT.ICON_INFORMATION) !is 0) iconBits = OS.MB_ICONINFORMATION; + if ((style & DWT.ICON_QUESTION) !is 0) iconBits = OS.MB_ICONQUESTION; + if ((style & DWT.ICON_WARNING) !is 0) iconBits = OS.MB_ICONWARNING; + if ((style & DWT.ICON_WORKING) !is 0) iconBits = OS.MB_ICONINFORMATION; + + /* Only MB_APPLMODAL is supported on WinCE */ + int modalBits = 0; + if (OS.IsWinCE) { + if ((style & (DWT.PRIMARY_MODAL | DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) { + modalBits = OS.MB_APPLMODAL; + } + } else { + if ((style & DWT.PRIMARY_MODAL) !is 0) modalBits = OS.MB_APPLMODAL; + if ((style & DWT.APPLICATION_MODAL) !is 0) modalBits = OS.MB_TASKMODAL; + if ((style & DWT.SYSTEM_MODAL) !is 0) modalBits = OS.MB_SYSTEMMODAL; + } + + int bits = buttonBits | iconBits | modalBits; + if ((style & DWT.RIGHT_TO_LEFT) !is 0) bits |= OS.MB_RTLREADING; + if ((style & (DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT)) is 0) { + if (parent !is null && (parent.style & DWT.MIRRORED) !is 0) { + bits |= OS.MB_RTLREADING; + } + } + + /* + * Feature in Windows. System modal is not supported + * on Windows 95 and NT. The fix is to convert system + * modal to task modal. + */ + if ((bits & OS.MB_SYSTEMMODAL) !is 0) { + bits |= OS.MB_TASKMODAL; + bits &= ~OS.MB_SYSTEMMODAL; + /* Force a system modal message box to the front */ + bits |= OS.MB_TOPMOST; + } + + /* + * Feature in Windows. In order for MB_TASKMODAL to work, + * the parent HWND of the MessageBox () call must be NULL. + * If the parent is not NULL, MB_TASKMODAL behaves the + * same as MB_APPLMODAL. The fix to set the parent HWND + * anyway and not rely on MB_MODAL to work by making the + * parent be temporarily modal. + */ + int hwndOwner = parent !is null ? parent.handle : 0; + Shell oldModal = null; + Display display = null; + if ((bits & OS.MB_TASKMODAL) !is 0) { + display = parent.getDisplay (); + oldModal = display.getModalDialogShell (); + display.setModalDialogShell (parent); + } + + /* Open the message box */ + /* Use the character encoding for the default locale */ + TCHAR buffer1 = new TCHAR (0, message, true); + TCHAR buffer2 = new TCHAR (0, title, true); + int code = OS.MessageBox (hwndOwner, buffer1, buffer2, bits); + + /* Clear the temporarily dialog modal parent */ + if ((bits & OS.MB_TASKMODAL) !is 0) { + display.setModalDialogShell (oldModal); + } + + /* + * This code is intentionally commented. On some + * platforms, the owner window is repainted right + * away when a dialog window exits. This behavior + * is currently unspecified. + */ +// if (hwndOwner !is 0) OS.UpdateWindow (hwndOwner); + + /* Compute and return the result */ + if (code !is 0) { + int type = bits & 0x0F; + if (type is OS.MB_OK) return DWT.OK; + if (type is OS.MB_OKCANCEL) { + return (code is OS.IDOK) ? DWT.OK : DWT.CANCEL; + } + if (type is OS.MB_YESNO) { + return (code is OS.IDYES) ? DWT.YES : DWT.NO; + } + if (type is OS.MB_YESNOCANCEL) { + if (code is OS.IDYES) return DWT.YES; + if (code is OS.IDNO) return DWT.NO; + return DWT.CANCEL; + } + if (type is OS.MB_RETRYCANCEL) { + return (code is OS.IDRETRY) ? DWT.RETRY : DWT.CANCEL; + } + if (type is OS.MB_ABORTRETRYIGNORE) { + if (code is OS.IDRETRY) return DWT.RETRY; + if (code is OS.IDABORT) return DWT.ABORT; + return DWT.IGNORE; + } + } + return DWT.CANCEL; +} + +/** + * Sets the dialog's message, which is a description of + * the purpose for which it was opened. This message will be + * visible on the dialog while it is open. + * + * @param string the message + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + */ +public void setMessage (String string) { + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + message = string; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Monitor.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,87 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Monitor; + +import dwt.graphics.Rectangle; + +/** + * Instances of this class are descriptions of monitors. + * + * @see Display + * + * @since 3.0 + */ +public final class Monitor { + int handle; + int x, y, width, height; + int clientX, clientY, clientWidth, clientHeight; + +/** + * Prevents uninitialized instances from being created outside the package. + */ +this () { +} + +/** + * Compares the argument to the receiver, and returns true + * if they represent the <em>same</em> object using a class + * specific comparison. + * + * @param object the object to compare with this object + * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise + * + * @see #hashCode() + */ +public override int opEquals (Object object) { + if (object is this) return true; + if ( auto mon = cast(dwt.widgets.Monitor.Monitor)object ){ + return handle is mon.handle; + } + return false; +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its device. + * + * @return the receiver's bounding rectangle + */ +public Rectangle getBounds () { + return new Rectangle (x, y, width, height); +} + +/** + * Returns a rectangle which describes the area of the + * receiver which is capable of displaying data. + * + * @return the client area + */ +public Rectangle getClientArea () { + return new Rectangle (clientX, clientY, clientWidth, clientHeight); +} + +/** + * Returns an integer hash code for the receiver. Any two + * objects that return <code>true</code> when passed to + * <code>equals</code> must return the same value for this + * method. + * + * @return the receiver's hash + * + * @see #equals(Object) + */ +public override hash_t toHash() { + return cast(hash_t)handle; +} + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ProgressBar.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,375 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.ProgressBar; + +import dwt.widgets.Control; +class ProgressBar : Control { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Point; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of the receiver represent an unselectable + * user interface object that is used to display progress, + * typically in the form of a bar. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>SMOOTH, HORIZONTAL, VERTICAL, INDETERMINATE</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. + * </p><p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ +public class ProgressBar extends Control { + static final int DELAY = 100; + static final int TIMER_ID = 100; + static final int MINIMUM_WIDTH = 100; + static final int ProgressBarProc; + static final TCHAR ProgressBarClass = new TCHAR (0, OS.PROGRESS_CLASS, true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, ProgressBarClass, lpWndClass); + ProgressBarProc = lpWndClass.lpfnWndProc; + /* + * Feature in Windows. The progress bar window class + * does not include CS_DBLCLKS. This mean that these + * controls will not get double click messages such as + * WM_LBUTTONDBLCLK. The fix is to register a new + * window class with CS_DBLCLKS. + * + * NOTE: Screen readers look for the exact class name + * of the control in order to provide the correct kind + * of assistance. Therefore, it is critical that the + * new window class have the same name. It is possible + * to register a local window class with the same name + * as a global class. Since bits that affect the class + * are being changed, it is possible that other native + * code, other than DWT, could create a control with + * this class name, and fail unexpectedly. + */ + int hInstance = OS.GetModuleHandle (null); + int hHeap = OS.GetProcessHeap (); + lpWndClass.hInstance = hInstance; + lpWndClass.style &= ~OS.CS_GLOBALCLASS; + lpWndClass.style |= OS.CS_DBLCLKS; + int byteCount = ProgressBarClass.length () * TCHAR.sizeof; + int lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpszClassName, ProgressBarClass, byteCount); + lpWndClass.lpszClassName = lpszClassName; + OS.RegisterClass (lpWndClass); + OS.HeapFree (hHeap, 0, lpszClassName); + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#SMOOTH + * @see DWT#HORIZONTAL + * @see DWT#VERTICAL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ProgressBar (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (ProgressBarProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + style |= DWT.NO_FOCUS; + return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int border = getBorderWidth (); + int width = border * 2, height = border * 2; + if ((style & DWT.HORIZONTAL) !is 0) { + width += OS.GetSystemMetrics (OS.SM_CXHSCROLL) * 10; + height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } else { + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + height += OS.GetSystemMetrics (OS.SM_CYVSCROLL) * 10; + } + if (wHint !is DWT.DEFAULT) width = wHint + (border * 2); + if (hHint !is DWT.DEFAULT) height = hHint + (border * 2); + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + startTimer (); +} + +int defaultForeground () { + return OS.GetSysColor (OS.COLOR_HIGHLIGHT); +} + +/** + * Returns the maximum value which the receiver will allow. + * + * @return the maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMaximum () { + checkWidget (); + return OS.SendMessage (handle, OS.PBM_GETRANGE, 0, 0); +} + +/** + * Returns the minimum value which the receiver will allow. + * + * @return the minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMinimum () { + checkWidget (); + return OS.SendMessage (handle, OS.PBM_GETRANGE, 1, 0); +} + +/** + * Returns the single 'selection' that is the receiver's position. + * + * @return the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelection () { + checkWidget (); + return OS.SendMessage (handle, OS.PBM_GETPOS, 0, 0); +} + +void releaseWidget () { + super.releaseWidget (); + stopTimer (); +} + +void startTimer () { + if ((style & DWT.INDETERMINATE) !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if (OS.COMCTL32_MAJOR < 6 || (bits & OS.PBS_MARQUEE) is 0) { + OS.SetTimer (handle, TIMER_ID, DELAY, 0); + } else { + OS.SendMessage (handle, OS.PBM_SETMARQUEE, 1, DELAY); + } + } +} + +void stopTimer () { + if ((style & DWT.INDETERMINATE) !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if (OS.COMCTL32_MAJOR < 6 || (bits & OS.PBS_MARQUEE) is 0) { + OS.KillTimer (handle, TIMER_ID); + } else { + OS.SendMessage (handle, OS.PBM_SETMARQUEE, 0, 0); + } + } +} + +void setBackgroundPixel (int pixel) { + if (pixel is -1) pixel = OS.CLR_DEFAULT; + OS.SendMessage (handle, OS.PBM_SETBKCOLOR, 0, pixel); +} + +void setForegroundPixel (int pixel) { + if (pixel is -1) pixel = OS.CLR_DEFAULT; + OS.SendMessage (handle, OS.PBM_SETBARCOLOR, 0, pixel); +} + +/** + * Sets the maximum value that the receiver will allow. This new + * value will be ignored if it is not greater than the receiver's current + * minimum value. If the new maximum is applied then the receiver's + * selection value will be adjusted if necessary to fall within its new range. + * + * @param value the new maximum, which must be greater than the current minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMaximum (int value) { + checkWidget (); + int minimum = OS.SendMessage (handle, OS.PBM_GETRANGE, 1, 0); + if (0 <= minimum && minimum < value) { + OS.SendMessage (handle, OS.PBM_SETRANGE32, minimum, value); + } +} + +/** + * Sets the minimum value that the receiver will allow. This new + * value will be ignored if it is negative or is not less than the receiver's + * current maximum value. If the new minimum is applied then the receiver's + * selection value will be adjusted if necessary to fall within its new range. + * + * @param value the new minimum, which must be nonnegative and less than the current maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMinimum (int value) { + checkWidget (); + int maximum = OS.SendMessage (handle, OS.PBM_GETRANGE, 0, 0); + if (0 <= value && value < maximum) { + OS.SendMessage (handle, OS.PBM_SETRANGE32, value, maximum); + } +} + +/** + * Sets the single 'selection' that is the receiver's + * position to the argument which must be greater than or equal + * to zero. + * + * @param value the new selection (must be zero or greater) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (int value) { + checkWidget (); + OS.SendMessage (handle, OS.PBM_SETPOS, value, 0); +} + +int widgetStyle () { + int bits = super.widgetStyle (); + if ((style & DWT.SMOOTH) !is 0) bits |= OS.PBS_SMOOTH; + if ((style & DWT.VERTICAL) !is 0) bits |= OS.PBS_VERTICAL; + if ((style & DWT.INDETERMINATE) !is 0) bits |= OS.PBS_MARQUEE; + return bits; +} + +TCHAR windowClass () { + return ProgressBarClass; +} + +int windowProc () { + return ProgressBarProc; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + LRESULT result = super.WM_GETDLGCODE (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. The progress bar does + * not implement WM_GETDLGCODE. As a result, + * a progress bar takes focus and takes part + * in tab traversal. This behavior, while + * unspecified, is unwanted. The fix is to + * implement WM_GETDLGCODE to behave like a + * STATIC control. + */ + return new LRESULT (OS.DLGC_STATIC); +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. When a progress bar with the style + * PBS_MARQUEE becomes too small, the animation (currently + * a small bar moving from right to left) does not have + * enough space to draw. The result is that the progress + * bar does not appear to be moving. The fix is to detect + * this case, clear the PBS_MARQUEE style and emulate the + * animation using PBM_STEPIT. + * + * NOTE: This only happens on Window XP. + */ + if ((style & DWT.INDETERMINATE) !is 0) { + if (OS.COMCTL32_MAJOR >= 6) { + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE); + int newBits = oldBits; + if (rect.right - rect.left < MINIMUM_WIDTH) { + newBits &= ~OS.PBS_MARQUEE; + } else { + newBits |= OS.PBS_MARQUEE; + } + if (newBits !is oldBits) { + stopTimer (); + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + startTimer (); + } + } + } + return result; +} + +LRESULT WM_TIMER (int wParam, int lParam) { + LRESULT result = super.WM_TIMER (wParam, lParam); + if (result !is null) return result; + if ((style & DWT.INDETERMINATE) !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if (OS.COMCTL32_MAJOR < 6 || (bits & OS.PBS_MARQUEE) is 0) { + if (wParam is TIMER_ID) { + OS.SendMessage (handle, OS.PBM_STEPIT, 0, 0); + } + } + } + return result; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/RunnableLock.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,51 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.RunnableLock; + +import tango.core.Thread; +import dwt.dwthelper.Runnable; +import tango.core.Exception; + +/** + * Instances of this class are used to ensure that an + * application cannot interfere with the locking mechanism + * used to implement asynchronous and synchronous communication + * between widgets and background threads. + */ + +class RunnableLock { + Runnable runnable; + Thread thread; + TracedException throwable; + +this (Runnable runnable) { + this.runnable = runnable; +} + +bool done () { + return runnable is null || throwable !is null; +} + +void run () { + if (runnable !is null) runnable.run (); + runnable = null; +} + +//PORTING_FIXME: How to emulate Java locking? +void notifyAll(){ +} +//PORTING_FIXME: How to emulate Java locking? +void wait(){ +} + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Sash.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,427 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Sash; + +import dwt.widgets.Control; +class Sash : Control { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Point; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; + +/** + * Instances of the receiver represent a selectable user interface object + * that allows the user to drag a rubber banded outline of the sash within + * the parent control. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>HORIZONTAL, VERTICAL, SMOOTH</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. + * </p><p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ +public class Sash extends Control { + bool dragging; + int startX, startY, lastX, lastY; + final static int INCREMENT = 1; + final static int PAGE_INCREMENT = 9; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#HORIZONTAL + * @see DWT#VERTICAL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Sash (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called, the x, y, width, and height fields of the event object are valid. + * If the receiver is being dragged, the event object detail field contains the value <code>DWT.DRAG</code>. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the control is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +void createHandle () { + super.createHandle (); + state |= THEME_BACKGROUND; +} + +static int checkStyle (int style) { + return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int border = getBorderWidth (); + int width = border * 2, height = border * 2; + if ((style & DWT.HORIZONTAL) !is 0) { + width += DEFAULT_WIDTH; height += 3; + } else { + width += 3; height += DEFAULT_HEIGHT; + } + if (wHint !is DWT.DEFAULT) width = wHint + (border * 2); + if (hHint !is DWT.DEFAULT) height = hHint + (border * 2); + return new Point (width, height); +} + +void drawBand (int x, int y, int width, int height) { + if ((style & DWT.SMOOTH) !is 0) return; + int hwndTrack = parent.handle; + byte [] bits = {-86, 0, 85, 0, -86, 0, 85, 0, -86, 0, 85, 0, -86, 0, 85, 0}; + int stippleBitmap = OS.CreateBitmap (8, 8, 1, 1, bits); + int stippleBrush = OS.CreatePatternBrush (stippleBitmap); + int hDC = OS.GetDCEx (hwndTrack, 0, OS.DCX_CACHE); + int oldBrush = OS.SelectObject (hDC, stippleBrush); + OS.PatBlt (hDC, x, y, width, height, OS.PATINVERT); + OS.SelectObject (hDC, oldBrush); + OS.ReleaseDC (hwndTrack, hDC); + OS.DeleteObject (stippleBrush); + OS.DeleteObject (stippleBitmap); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +TCHAR windowClass () { + return display.windowClass; +} + +int windowProc () { + return display.windowProc; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + super.WM_ERASEBKGND (wParam, lParam); + drawBackground (wParam); + return LRESULT.ONE; +} + +LRESULT WM_KEYDOWN (int wParam, int lParam) { + LRESULT result = super.WM_KEYDOWN (wParam, lParam); + if (result !is null) return result; + switch (wParam) { + case OS.VK_LEFT: + case OS.VK_RIGHT: + case OS.VK_UP: + case OS.VK_DOWN: + + /* Calculate the new x or y position */ + if (OS.GetKeyState (OS.VK_LBUTTON) < 0) return result; + int step = OS.GetKeyState (OS.VK_CONTROL) < 0 ? INCREMENT : PAGE_INCREMENT; + POINT pt = new POINT (); + if ((style & DWT.VERTICAL) !is 0) { + if (wParam is OS.VK_UP || wParam is OS.VK_DOWN) break; + pt.x = wParam is OS.VK_LEFT ? -step : step; + } else { + if (wParam is OS.VK_LEFT || wParam is OS.VK_RIGHT) break; + pt.y = wParam is OS.VK_UP ? -step : step; + } + int hwndTrack = parent.handle; + OS.MapWindowPoints (handle, hwndTrack, pt, 1); + RECT rect = new RECT (), clientRect = new RECT (); + OS.GetWindowRect (handle, rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + OS.GetClientRect (hwndTrack, clientRect); + int clientWidth = clientRect.right - clientRect.left; + int clientHeight = clientRect.bottom - clientRect.top; + int newX = lastX, newY = lastY; + if ((style & DWT.VERTICAL) !is 0) { + newX = Math.min (Math.max (0, pt.x - startX), clientWidth - width); + } else { + newY = Math.min (Math.max (0, pt.y - startY), clientHeight - height); + } + if (newX is lastX && newY is lastY) return result; + + /* Update the pointer position */ + POINT cursorPt = new POINT (); + cursorPt.x = pt.x; cursorPt.y = pt.y; + OS.ClientToScreen (hwndTrack, cursorPt); + if ((style & DWT.VERTICAL) !is 0) { + cursorPt.y += height / 2; + } + else { + cursorPt.x += width / 2; + } + OS.SetCursorPos (cursorPt.x, cursorPt.y); + + Event event = new Event (); + event.x = newX; + event.y = newY; + event.width = width; + event.height = height; + sendEvent (DWT.Selection, event); + if (isDisposed ()) return LRESULT.ZERO; + if (event.doit) { + if ((style & DWT.SMOOTH) !is 0) { + setBounds (event.x, event.y, width, height); + } + } + return result; + } + return result; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + return new LRESULT (OS.DLGC_STATIC); +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); + if (result is LRESULT.ZERO) return result; + + /* Compute the banding rectangle */ + int hwndTrack = parent.handle; + POINT pt = new POINT (); + pt.x = (short) (lParam & 0xFFFF); + pt.y = (short) (lParam >> 16); + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + OS.MapWindowPoints (handle, 0, pt, 1); + startX = pt.x - rect.left; + startY = pt.y - rect.top; + OS.MapWindowPoints (0, hwndTrack, rect, 2); + lastX = rect.left; + lastY = rect.top; + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + + /* The event must be sent because doit flag is used */ + Event event = new Event (); + event.x = lastX; + event.y = lastY; + event.width = width; + event.height = height; + if ((style & DWT.SMOOTH) is 0) { + event.detail = DWT.DRAG; + } + sendEvent (DWT.Selection, event); + if (isDisposed ()) return LRESULT.ZERO; + + /* Draw the banding rectangle */ + if (event.doit) { + dragging = true; + lastX = event.x; + lastY = event.y; + menuShell ().bringToTop (); + if (isDisposed ()) return LRESULT.ZERO; + if (OS.IsWinCE) { + OS.UpdateWindow (hwndTrack); + } else { + int flags = OS.RDW_UPDATENOW | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (hwndTrack, null, 0, flags); + } + drawBand (event.x, event.y, width, height); + if ((style & DWT.SMOOTH) !is 0) { + setBounds (event.x, event.y, width, height); + // widget could be disposed at this point + } + } + return result; +} + +LRESULT WM_LBUTTONUP (int wParam, int lParam) { + LRESULT result = super.WM_LBUTTONUP (wParam, lParam); + if (result is LRESULT.ZERO) return result; + + /* Compute the banding rectangle */ + if (!dragging) return result; + dragging = false; + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + + /* The event must be sent because doit flag is used */ + Event event = new Event (); + event.x = lastX; + event.y = lastY; + event.width = width; + event.height = height; + drawBand (event.x, event.y, width, height); + sendEvent (DWT.Selection, event); + if (isDisposed ()) return result; + if (event.doit) { + if ((style & DWT.SMOOTH) !is 0) { + setBounds (event.x, event.y, width, height); + // widget could be disposed at this point + } + } + return result; +} + +LRESULT WM_MOUSEMOVE (int wParam, int lParam) { + LRESULT result = super.WM_MOUSEMOVE (wParam, lParam); + if (result !is null) return result; + if (!dragging || (wParam & OS.MK_LBUTTON) is 0) return result; + + /* Compute the banding rectangle */ + POINT pt = new POINT (); + pt.x = (short) (lParam & 0xFFFF); + pt.y = (short) (lParam >> 16); + int hwndTrack = parent.handle; + OS.MapWindowPoints (handle, hwndTrack, pt, 1); + RECT rect = new RECT (), clientRect = new RECT (); + OS.GetWindowRect (handle, rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + OS.GetClientRect (hwndTrack, clientRect); + int newX = lastX, newY = lastY; + if ((style & DWT.VERTICAL) !is 0) { + int clientWidth = clientRect.right - clientRect.left; + newX = Math.min (Math.max (0, pt.x - startX), clientWidth - width); + } else { + int clientHeight = clientRect.bottom - clientRect.top; + newY = Math.min (Math.max (0, pt.y - startY), clientHeight - height); + } + if (newX is lastX && newY is lastY) return result; + drawBand (lastX, lastY, width, height); + + /* The event must be sent because doit flag is used */ + Event event = new Event (); + event.x = newX; + event.y = newY; + event.width = width; + event.height = height; + if ((style & DWT.SMOOTH) is 0) { + event.detail = DWT.DRAG; + } + sendEvent (DWT.Selection, event); + if (isDisposed ()) return LRESULT.ZERO; + if (event.doit) { + lastX = event.x; + lastY = event.y; + } + if (OS.IsWinCE) { + OS.UpdateWindow (hwndTrack); + } else { + int flags = OS.RDW_UPDATENOW | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (hwndTrack, null, 0, flags); + } + drawBand (lastX, lastY, width, height); + if ((style & DWT.SMOOTH) !is 0) { + setBounds (lastX, lastY, width, height); + // widget could be disposed at this point + } + return result; +} + +LRESULT WM_SETCURSOR (int wParam, int lParam) { + LRESULT result = super.WM_SETCURSOR (wParam, lParam); + if (result !is null) return result; + int hitTest = lParam & 0xFFFF; + if (hitTest is OS.HTCLIENT) { + int hCursor = 0; + if ((style & DWT.HORIZONTAL) !is 0) { + hCursor = OS.LoadCursor (0, OS.IDC_SIZENS); + } else { + hCursor = OS.LoadCursor (0, OS.IDC_SIZEWE); + } + OS.SetCursor (hCursor); + return LRESULT.ONE; + } + return result; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Scale.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,512 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Scale; + +import dwt.widgets.Control; +import dwt.widgets.Composite; + +class Scale : Control { + this (Composite parent, int style) ; +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionListener; +import dwt.graphics.Point; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of the receiver represent a selectable user + * interface object that present a range of continuous + * numeric values. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>HORIZONTAL, VERTICAL</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. + * </p><p> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ + +public class Scale extends Control { + bool ignoreResize; + static final int TrackBarProc; + static final TCHAR TrackBarClass = new TCHAR (0, OS.TRACKBAR_CLASS, true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, TrackBarClass, lpWndClass); + TrackBarProc = lpWndClass.lpfnWndProc; + /* + * Feature in Windows. The track bar window class + * does not include CS_DBLCLKS. This mean that these + * controls will not get double click messages such as + * WM_LBUTTONDBLCLK. The fix is to register a new + * window class with CS_DBLCLKS. + * + * NOTE: Screen readers look for the exact class name + * of the control in order to provide the correct kind + * of assistance. Therefore, it is critical that the + * new window class have the same name. It is possible + * to register a local window class with the same name + * as a global class. Since bits that affect the class + * are being changed, it is possible that other native + * code, other than DWT, could create a control with + * this class name, and fail unexpectedly. + */ + int hInstance = OS.GetModuleHandle (null); + int hHeap = OS.GetProcessHeap (); + lpWndClass.hInstance = hInstance; + lpWndClass.style &= ~OS.CS_GLOBALCLASS; + lpWndClass.style |= OS.CS_DBLCLKS; + int byteCount = TrackBarClass.length () * TCHAR.sizeof; + int lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpszClassName, TrackBarClass, byteCount); + lpWndClass.lpszClassName = lpszClassName; + OS.RegisterClass (lpWndClass); + OS.HeapFree (hHeap, 0, lpszClassName); + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#HORIZONTAL + * @see DWT#VERTICAL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Scale (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the user changes the receiver's value, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the user changes the receiver's value. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (TrackBarProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int border = getBorderWidth (); + int width = border * 2, height = border * 2; + RECT rect = new RECT (); + OS.SendMessage (handle, OS.TBM_GETTHUMBRECT, 0, rect); + if ((style & DWT.HORIZONTAL) !is 0) { + width += OS.GetSystemMetrics (OS.SM_CXHSCROLL) * 10; + int scrollY = OS.GetSystemMetrics (OS.SM_CYHSCROLL); + height += (rect.top * 2) + scrollY + (scrollY / 3); + } else { + int scrollX = OS.GetSystemMetrics (OS.SM_CXVSCROLL); + width += (rect.left * 2) + scrollX + (scrollX / 3); + height += OS.GetSystemMetrics (OS.SM_CYVSCROLL) * 10; + } + if (wHint !is DWT.DEFAULT) width = wHint + (border * 2); + if (hHint !is DWT.DEFAULT) height = hHint + (border * 2); + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + state |= THEME_BACKGROUND | DRAW_BACKGROUND; + OS.SendMessage (handle, OS.TBM_SETRANGEMAX, 0, 100); + OS.SendMessage (handle, OS.TBM_SETPAGESIZE, 0, 10); + OS.SendMessage (handle, OS.TBM_SETTICFREQ, 10, 0); +} + +int defaultForeground () { + return OS.GetSysColor (OS.COLOR_BTNFACE); +} + +/** + * Returns the amount that the receiver's value will be + * modified by when the up/down (or right/left) arrows + * are pressed. + * + * @return the increment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getIncrement () { + checkWidget (); + return OS.SendMessage (handle, OS.TBM_GETLINESIZE, 0, 0); +} + +/** + * Returns the maximum value which the receiver will allow. + * + * @return the maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMaximum () { + checkWidget (); + return OS.SendMessage (handle, OS.TBM_GETRANGEMAX, 0, 0); +} + +/** + * Returns the minimum value which the receiver will allow. + * + * @return the minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMinimum () { + checkWidget (); + return OS.SendMessage (handle, OS.TBM_GETRANGEMIN, 0, 0); +} + +/** + * Returns the amount that the receiver's value will be + * modified by when the page increment/decrement areas + * are selected. + * + * @return the page increment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getPageIncrement () { + checkWidget (); + return OS.SendMessage (handle, OS.TBM_GETPAGESIZE, 0, 0); +} + +/** + * Returns the 'selection', which is the receiver's position. + * + * @return the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelection () { + checkWidget (); + return OS.SendMessage (handle, OS.TBM_GETPOS, 0, 0); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the user changes the receiver's value. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +void setBackgroundImage (int hImage) { + super.setBackgroundImage (hImage); + /* + * Bug in Windows. Changing the background color of the Scale + * widget and calling InvalidateRect() still draws with the old + * color. The fix is to send a fake WM_SIZE event to cause + * it to redraw with the new background color. + */ + ignoreResize = true; + OS.SendMessage (handle, OS.WM_SIZE, 0, 0); + ignoreResize = false; +} + +void setBackgroundPixel (int pixel) { + super.setBackgroundPixel (pixel); + /* + * Bug in Windows. Changing the background color of the Scale + * widget and calling InvalidateRect() still draws with the old + * color. The fix is to send a fake WM_SIZE event to cause + * it to redraw with the new background color. + */ + ignoreResize = true; + OS.SendMessage (handle, OS.WM_SIZE, 0, 0); + ignoreResize = false; +} + +/** + * Sets the amount that the receiver's value will be + * modified by when the up/down (or right/left) arrows + * are pressed to the argument, which must be at least + * one. + * + * @param increment the new increment (must be greater than zero) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setIncrement (int increment) { + checkWidget (); + if (increment < 1) return; + int minimum = OS.SendMessage (handle, OS.TBM_GETRANGEMIN, 0, 0); + int maximum = OS.SendMessage (handle, OS.TBM_GETRANGEMAX, 0, 0); + if (increment > maximum - minimum) return; + OS.SendMessage (handle, OS.TBM_SETLINESIZE, 0, increment); +} + +/** + * Sets the maximum value that the receiver will allow. This new + * value will be ignored if it is not greater than the receiver's current + * minimum value. If the new maximum is applied then the receiver's + * selection value will be adjusted if necessary to fall within its new range. + * + * @param value the new maximum, which must be greater than the current minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMaximum (int value) { + checkWidget (); + int minimum = OS.SendMessage (handle, OS.TBM_GETRANGEMIN, 0, 0); + if (0 <= minimum && minimum < value) { + OS.SendMessage (handle, OS.TBM_SETRANGEMAX, 1, value); + } +} + +/** + * Sets the minimum value that the receiver will allow. This new + * value will be ignored if it is negative or is not less than the receiver's + * current maximum value. If the new minimum is applied then the receiver's + * selection value will be adjusted if necessary to fall within its new range. + * + * @param value the new minimum, which must be nonnegative and less than the current maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMinimum (int value) { + checkWidget (); + int maximum = OS.SendMessage (handle, OS.TBM_GETRANGEMAX, 0, 0); + if (0 <= value && value < maximum) { + OS.SendMessage (handle, OS.TBM_SETRANGEMIN, 1, value); + } +} + +/** + * Sets the amount that the receiver's value will be + * modified by when the page increment/decrement areas + * are selected to the argument, which must be at least + * one. + * + * @param pageIncrement the page increment (must be greater than zero) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setPageIncrement (int pageIncrement) { + checkWidget (); + if (pageIncrement < 1) return; + int minimum = OS.SendMessage (handle, OS.TBM_GETRANGEMIN, 0, 0); + int maximum = OS.SendMessage (handle, OS.TBM_GETRANGEMAX, 0, 0); + if (pageIncrement > maximum - minimum) return; + OS.SendMessage (handle, OS.TBM_SETPAGESIZE, 0, pageIncrement); + OS.SendMessage (handle, OS.TBM_SETTICFREQ, pageIncrement, 0); +} + +/** + * Sets the 'selection', which is the receiver's value, + * to the argument which must be greater than or equal to zero. + * + * @param value the new selection (must be zero or greater) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (int value) { + checkWidget (); + OS.SendMessage (handle, OS.TBM_SETPOS, 1, value); +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.WS_TABSTOP | OS.TBS_BOTH | OS.TBS_AUTOTICKS; + if ((style & DWT.HORIZONTAL) !is 0) return bits | OS.TBS_HORZ | OS.TBS_DOWNISLEFT; + return bits | OS.TBS_VERT; +} + +TCHAR windowClass () { + return TrackBarClass; +} + +int windowProc () { + return TrackBarProc; +} + +LRESULT WM_PAINT (int wParam, int lParam) { + /* + * Bug in Windows. For some reason, when WM_CTLCOLORSTATIC + * is used to implement transparency and returns a NULL brush, + * Windows doesn't always draw the track bar. It seems that + * it is drawn correctly the first time. It is possible that + * Windows double buffers the control and the double buffer + * strategy fails when WM_CTLCOLORSTATIC returns unexpected + * results. The fix is to send a fake WM_SIZE to force it + * to redraw every time there is a WM_PAINT. + */ + bool fixPaint = findBackgroundControl () !is null; + if (!fixPaint) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + Control control = findThemeControl (); + fixPaint = control !is null; + } + } + if (fixPaint) { + bool redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + ignoreResize = true; + OS.SendMessage (handle, OS.WM_SIZE, 0, 0); + ignoreResize = false; + if (redraw) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, null, false); + } + } + return super.WM_PAINT (wParam, lParam); +} + +LRESULT WM_SIZE (int wParam, int lParam) { + if (ignoreResize) return null; + return super.WM_SIZE (wParam, lParam); +} + +LRESULT wmScrollChild (int wParam, int lParam) { + + /* Do nothing when scrolling is ending */ + int code = wParam & 0xFFFF; + switch (code) { + case OS.TB_ENDTRACK: + case OS.TB_THUMBPOSITION: + return null; + } + + Event event = new Event (); + /* + * This code is intentionally commented. The event + * detail field is not currently supported on all + * platforms. + */ +// switch (code) { +// case OS.TB_TOP: event.detail = DWT.HOME; break; +// case OS.TB_BOTTOM: event.detail = DWT.END; break; +// case OS.TB_LINEDOWN: event.detail = DWT.ARROW_DOWN; break; +// case OS.TB_LINEUP: event.detail = DWT.ARROW_UP; break; +// case OS.TB_PAGEDOWN: event.detail = DWT.PAGE_DOWN; break; +// case OS.TB_PAGEUP: event.detail = DWT.PAGE_UP; break; +// } + + /* + * Send the event because WM_HSCROLL and WM_VSCROLL + * are sent from a modal message loop in windows that + * is active when the user is scrolling. + */ + sendEvent (DWT.Selection, event); + // widget could be disposed at this point + return null; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ScrollBar.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,915 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.ScrollBar; + +import dwt.widgets.Widget; +class ScrollBar : Widget { + this( Widget, int ); +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SCROLLINFO; + +/** + * Instances of this class are selectable user interface + * objects that represent a range of positive, numeric values. + * <p> + * At any given moment, a given scroll bar will have a + * single 'selection' that is considered to be its + * value, which is constrained to be within the range of + * values the scroll bar represents (that is, between its + * <em>minimum</em> and <em>maximum</em> values). + * </p><p> + * Typically, scroll bars will be made up of five areas: + * <ol> + * <li>an arrow button for decrementing the value</li> + * <li>a page decrement area for decrementing the value by a larger amount</li> + * <li>a <em>thumb</em> for modifying the value by mouse dragging</li> + * <li>a page increment area for incrementing the value by a larger amount</li> + * <li>an arrow button for incrementing the value</li> + * </ol> + * Based on their style, scroll bars are either <code>HORIZONTAL</code> + * (which have a left facing button for decrementing the value and a + * right facing button for incrementing it) or <code>VERTICAL</code> + * (which have an upward facing button for decrementing the value + * and a downward facing buttons for incrementing it). + * </p><p> + * On some platforms, the size of the scroll bar's thumb can be + * varied relative to the magnitude of the range of values it + * represents (that is, relative to the difference between its + * maximum and minimum values). Typically, this is used to + * indicate some proportional value such as the ratio of the + * visible area of a document to the total amount of space that + * it would take to display it. DWT supports setting the thumb + * size even if the underlying platform does not, but in this + * case the appearance of the scroll bar will not change. + * </p><p> + * Scroll bars are created by specifying either <code>H_SCROLL</code>, + * <code>V_SCROLL</code> or both when creating a <code>Scrollable</code>. + * They are accessed from the <code>Scrollable</code> using + * <code>getHorizontalBar</code> and <code>getVerticalBar</code>. + * </p><p> + * Note: Scroll bars are not Controls. On some platforms, scroll bars + * that appear as part of some standard controls such as a text or list + * have no operating system resources and are not children of the control. + * For this reason, scroll bars are treated specially. To create a control + * that looks like a scroll bar but has operating system resources, use + * <code>Slider</code>. + * </p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>HORIZONTAL, VERTICAL</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @see Slider + * @see Scrollable + * @see Scrollable#getHorizontalBar + * @see Scrollable#getVerticalBar + */ + +public class ScrollBar extends Widget { + Scrollable parent; + int increment, pageIncrement; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#HORIZONTAL + * @see DWT#VERTICAL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +ScrollBar (Scrollable parent, int style) { + super (parent, checkStyle (style)); + this.parent = parent; + createWidget (); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the user changes the receiver's value, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called, the event object detail field contains one of the following values: + * <code>DWT.NONE</code> - for the end of a drag. + * <code>DWT.DRAG</code>. + * <code>DWT.HOME</code>. + * <code>DWT.END</code>. + * <code>DWT.ARROW_DOWN</code>. + * <code>DWT.ARROW_UP</code>. + * <code>DWT.PAGE_DOWN</code>. + * <code>DWT.PAGE_UP</code>. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the user changes the receiver's value + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener(listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +static int checkStyle (int style) { + return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0); +} + +void createWidget () { + increment = 1; + pageIncrement = 10; + /* + * Do not set the initial values of the maximum + * or the thumb. These values normally default + * to 100 and 10 but may have been set already + * by the widget that owns the scroll bar. For + * example, a scroll bar that is created for a + * list widget, setting these defaults would + * override the initial values provided by the + * list widget. + */ +} + +void destroyWidget () { + int hwnd = hwndScrollBar (), type = scrollBarType (); + if (OS.IsWinCE) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE | OS.SIF_PAGE; + info.nPage = 101; + info.nMax = 100; + info.nMin = 0; + OS.SetScrollInfo (hwnd, type, info, true); + } else { + OS.ShowScrollBar (hwnd, type, false); + } + releaseHandle (); +} + +Rectangle getBounds () { +// checkWidget (); + parent.forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (parent.scrolledHandle (), rect); + int x = 0, y = 0, width, height; + if ((style & DWT.HORIZONTAL) !is 0) { + y = rect.bottom - rect.top; + width = rect.right - rect.left; + height = OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } else { + x = rect.right - rect.left; + width = OS.GetSystemMetrics (OS.SM_CXVSCROLL); + height = rect.bottom - rect.top; + } + return new Rectangle (x, y, width, height); +} + +/** + * Returns <code>true</code> if the receiver is enabled, and + * <code>false</code> otherwise. A disabled control is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #isEnabled + */ +public bool getEnabled () { + checkWidget(); + return (state & DISABLED) is 0; +} + +/** + * Returns the amount that the receiver's value will be + * modified by when the up/down (or right/left) arrows + * are pressed. + * + * @return the increment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getIncrement () { + checkWidget(); + return increment; +} + +/** + * Returns the maximum value which the receiver will allow. + * + * @return the maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMaximum () { + checkWidget(); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE; + int hwnd = hwndScrollBar (); + int type = scrollBarType (); + OS.GetScrollInfo (hwnd, type, info); + return info.nMax; +} + +/** + * Returns the minimum value which the receiver will allow. + * + * @return the minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMinimum () { + checkWidget(); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE; + int hwnd = hwndScrollBar (); + int type = scrollBarType (); + OS.GetScrollInfo (hwnd, type, info); + return info.nMin; +} + +/** + * Returns the amount that the receiver's value will be + * modified by when the page increment/decrement areas + * are selected. + * + * @return the page increment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getPageIncrement () { + checkWidget(); + return pageIncrement; +} + +/** + * Returns the receiver's parent, which must be a Scrollable. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Scrollable getParent () { + checkWidget(); + return parent; +} + +/** + * Returns the single 'selection' that is the receiver's value. + * + * @return the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelection () { + checkWidget(); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + int hwnd = hwndScrollBar (); + int type = scrollBarType (); + OS.GetScrollInfo (hwnd, type, info); + return info.nPos; +} + +/** + * Returns a point describing the receiver's size. The + * x coordinate of the result is the width of the receiver. + * The y coordinate of the result is the height of the + * receiver. + * + * @return the receiver's size + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getSize () { + checkWidget(); + parent.forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (parent.scrolledHandle (), rect); + int width, height; + if ((style & DWT.HORIZONTAL) !is 0) { + width = rect.right - rect.left; + height = OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } else { + width = OS.GetSystemMetrics (OS.SM_CXVSCROLL); + height = rect.bottom - rect.top; + } + return new Point (width, height); +} + +/** + * Returns the size of the receiver's thumb relative to the + * difference between its maximum and minimum values. + * + * @return the thumb value + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ScrollBar + */ +public int getThumb () { + checkWidget(); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_PAGE; + int hwnd = hwndScrollBar (); + int type = scrollBarType (); + OS.GetScrollInfo (hwnd, type, info); + if (info.nPage !is 0) --info.nPage; + return info.nPage; +} + +/** + * Returns <code>true</code> if the receiver is visible, and + * <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getVisible () { + checkWidget(); + return (state & HIDDEN) is 0; +} + +int hwndScrollBar () { + return parent.scrolledHandle (); +} + +/** + * Returns <code>true</code> if the receiver is enabled and all + * of the receiver's ancestors are enabled, and <code>false</code> + * otherwise. A disabled control is typically not selectable from the + * user interface and draws with an inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getEnabled + */ +public bool isEnabled () { + checkWidget(); + return getEnabled () && parent.isEnabled (); +} + +/** + * Returns <code>true</code> if the receiver is visible and all + * of the receiver's ancestors are visible and <code>false</code> + * otherwise. + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getVisible + */ +public bool isVisible () { + checkWidget(); + return getVisible () && parent.isVisible (); +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; +} + +void releaseParent () { + super.releaseParent (); + if (parent.horizontalBar is this) parent.horizontalBar = null; + if (parent.verticalBar is this) parent.verticalBar = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the user changes the receiver's value. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +int scrollBarType () { + return (style & DWT.VERTICAL) !is 0 ? OS.SB_VERT : OS.SB_HORZ; +} + +/** + * Enables the receiver if the argument is <code>true</code>, + * and disables it otherwise. A disabled control is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @param enabled the new enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setEnabled (bool enabled) { + checkWidget(); + /* + * This line is intentionally commented. Currently + * always show scrollbar as being enabled and visible. + */ +// if (OS.IsWinCE) error (DWT.ERROR_NOT_IMPLEMENTED); + if (!OS.IsWinCE) { + int hwnd = hwndScrollBar (), type = scrollBarType (); + int flags = enabled ? OS.ESB_ENABLE_BOTH : OS.ESB_DISABLE_BOTH; + OS.EnableScrollBar (hwnd, type, flags); + if (enabled) { + state &= ~DISABLED; + } else { + state |= DISABLED; + } + } +} + +/** + * Sets the amount that the receiver's value will be + * modified by when the up/down (or right/left) arrows + * are pressed to the argument, which must be at least + * one. + * + * @param value the new increment (must be greater than zero) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setIncrement (int value) { + checkWidget(); + if (value < 1) return; + increment = value; +} + +/** + * Sets the maximum. If this value is negative or less than or + * equal to the minimum, the value is ignored. If necessary, first + * the thumb and then the selection are adjusted to fit within the + * new range. + * + * @param value the new maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMaximum (int value) { + checkWidget(); + if (value < 0) return; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + int hwnd = hwndScrollBar (), type = scrollBarType (); + info.fMask = OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL; + OS.GetScrollInfo (hwnd, type, info); + if (value - info.nMin - info.nPage < 1) return; + info.nMax = value; + SetScrollInfo (hwnd, type, info, true); +} + +/** + * Sets the minimum value. If this value is negative or greater + * than or equal to the maximum, the value is ignored. If necessary, + * first the thumb and then the selection are adjusted to fit within + * the new range. + * + * @param value the new minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMinimum (int value) { + checkWidget(); + if (value < 0) return; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + int hwnd = hwndScrollBar (), type = scrollBarType (); + info.fMask = OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL; + OS.GetScrollInfo (hwnd, type, info); + if (info.nMax - value - info.nPage < 1) return; + info.nMin = value; + SetScrollInfo (hwnd, type, info, true); +} + +/** + * Sets the amount that the receiver's value will be + * modified by when the page increment/decrement areas + * are selected to the argument, which must be at least + * one. + * + * @param value the page increment (must be greater than zero) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setPageIncrement (int value) { + checkWidget(); + if (value < 1) return; + pageIncrement = value; +} + +bool SetScrollInfo (int hwnd, int flags, SCROLLINFO info, bool fRedraw) { + /* + * Bug in Windows. For some reason, when SetScrollInfo() + * is used with SIF_POS and the scroll bar is hidden, + * the opposite scroll bar is incorrectly made visible + * so that the next time the parent is resized (or another + * scroll bar operation is performed), the opposite scroll + * bar draws. The fix is to hide both scroll bars. + */ + if ((state & (DISABLED | HIDDEN)) !is 0) fRedraw = false; + bool result = OS.SetScrollInfo (hwnd, flags, info, fRedraw); + + /* + * Bug in Windows. For some reason, when the widget + * is a standard scroll bar, and SetScrollInfo() is + * called with SIF_RANGE or SIF_PAGE, the widget is + * incorrectly made visible so that the next time the + * parent is resized (or another scroll bar operation + * is performed), the scroll bar draws. The fix is + * to hide the scroll bar (again) when already hidden. + */ + if ((state & HIDDEN) !is 0) { + /* + * This line is intentionally commented. Currently + * always show scrollbar as being enabled and visible. + */ +// if (OS.IsWinCE) error (DWT.ERROR_NOT_IMPLEMENTED); + if (!OS.IsWinCE) { + ScrollBar bar = null; + switch (flags) { + case OS.SB_HORZ: + bar = parent.getVerticalBar (); + break; + case OS.SB_VERT: + bar = parent.getHorizontalBar (); + break; + } + bool both = bar !is null && !bar.getVisible (); + OS.ShowScrollBar (hwnd, both ? OS.SB_BOTH : flags, false); + } + } + + /* + * Feature in Windows. Using SIF_DISABLENOSCROLL, + * SetScrollInfo () can change enabled and disabled + * state of the scroll bar causing a scroll bar that + * was disabled by the application to become enabled. + * The fix is to disable the scroll bar (again) when + * the application has disabled the scroll bar. + */ + if ((state & DISABLED) !is 0) { + /* + * This line is intentionally commented. Currently + * always show scrollbar as being enabled and visible. + */ +// if (OS.IsWinCE) error (DWT.ERROR_NOT_IMPLEMENTED); + if (!OS.IsWinCE) { + OS.EnableScrollBar (hwnd, flags, OS.ESB_DISABLE_BOTH); + } + } + return result; +} + +/** + * Sets the single <em>selection</em> that is the receiver's + * value to the argument which must be greater than or equal + * to zero. + * + * @param selection the new selection (must be zero or greater) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (int selection) { + checkWidget(); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + int hwnd = hwndScrollBar (), type = scrollBarType (); + info.fMask = OS.SIF_POS; + info.nPos = selection; + SetScrollInfo (hwnd, type, info, true); +} + +/** + * Sets the size of the receiver's thumb relative to the + * difference between its maximum and minimum values. This new + * value will be ignored if it is less than one, and will be + * clamped if it exceeds the receiver's current range. + * + * @param value the new thumb value, which must be at least one and not + * larger than the size of the current range + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setThumb (int value) { + checkWidget(); + if (value < 1) return; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + int hwnd = hwndScrollBar (), type = scrollBarType (); + info.fMask = OS.SIF_PAGE | OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL; + OS.GetScrollInfo (hwnd, type, info); + info.nPage = value; + if (info.nPage !is 0) info.nPage++; + SetScrollInfo (hwnd, type, info, true); +} + +/** + * Sets the receiver's selection, minimum value, maximum + * value, thumb, increment and page increment all at once. + * <p> + * Note: This is similar to setting the values individually + * using the appropriate methods, but may be implemented in a + * more efficient fashion on some platforms. + * </p> + * + * @param selection the new selection value + * @param minimum the new minimum value + * @param maximum the new maximum value + * @param thumb the new thumb value + * @param increment the new increment value + * @param pageIncrement the new pageIncrement value + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setValues (int selection, int minimum, int maximum, int thumb, int increment, int pageIncrement) { + checkWidget(); + if (minimum < 0) return; + if (maximum < 0) return; + if (thumb < 1) return; + if (increment < 1) return; + if (pageIncrement < 1) return; + this.increment = increment; + this.pageIncrement = pageIncrement; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS | OS.SIF_PAGE | OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL; + info.nPos = selection; + info.nMin = minimum; + info.nMax = maximum; + info.nPage = thumb; + if (info.nPage !is 0) info.nPage++; + int hwnd = hwndScrollBar (), type = scrollBarType (); + SetScrollInfo (hwnd, type, info, true); +} + +/** + * Marks the receiver as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param visible the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setVisible (bool visible) { + checkWidget(); + bool isVisible = (state & HIDDEN) is 0; + if (isVisible is visible) return; + + /* + * On Windows CE, use SIF_DISABLENOSCROLL to show and + * hide the scroll bar when the page size is equal to + * the range. + */ + if (OS.IsWinCE) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + int hwnd = hwndScrollBar (), type = scrollBarType (); + info.fMask = OS.SIF_RANGE | OS.SIF_PAGE; + if (visible) info.fMask |= OS.SIF_DISABLENOSCROLL; + OS.GetScrollInfo (hwnd, type, info); + if (info.nPage is info.nMax - info.nMin + 1) { + /* + * Bug in Windows. When the only changed flag to + * SetScrollInfo () is OS.SIF_DISABLENOSCROLL, + * Windows does not update the scroll bar state. + * The fix is to increase and then decrease the + * maximum, causing Windows to honour the flag. + */ + int max = info.nMax; + info.nMax++; + OS.SetScrollInfo (hwnd, type, info, false); + info.nMax = max; + OS.SetScrollInfo (hwnd, type, info, true); + } else { + /* + * This line is intentionally commented. Currently + * always show scrollbar as being enabled and visible. + */ +// if (OS.IsWinCE) error (DWT.ERROR_NOT_IMPLEMENTED); + } + return; + } + + /* + * Set the state bits before calling ShowScrollBar () + * because hiding and showing the scroll bar can cause + * WM_SIZE messages when the client area is resized. + * Setting the state before the call means that code + * that runs during WM_SIZE that queries the visibility + * of the scroll bar will get the correct value. + */ + state = visible ? state & ~HIDDEN : state | HIDDEN; + int hwnd = hwndScrollBar (), type = scrollBarType (); + if (OS.ShowScrollBar (hwnd, type, visible)) { + /* + * Bug in Windows. For some reason, when the widget + * is a standard scroll bar, and SetScrollInfo () is + * called with SIF_RANGE or SIF_PAGE while the widget + * is not visible, the widget is incorrectly disabled + * even though the values for SIF_RANGE and SIF_PAGE, + * when set for a visible scroll bar would not disable + * the scroll bar. The fix is to enable the scroll bar + * when not disabled by the application and the current + * scroll bar ranges would cause the scroll bar to be + * enabled had they been set when the scroll bar was + * visible. + */ + if ((state & DISABLED) is 0) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE | OS.SIF_PAGE; + OS.GetScrollInfo (hwnd, type, info); + if (info.nMax - info.nMin - info.nPage >= 0) { + OS.EnableScrollBar (hwnd, type, OS.ESB_ENABLE_BOTH); + } + } + sendEvent (visible ? DWT.Show : DWT.Hide); + // widget could be disposed at this point + } +} + +LRESULT wmScrollChild (int wParam, int lParam) { + + /* Do nothing when scrolling is ending */ + int code = wParam & 0xFFFF; + if (code is OS.SB_ENDSCROLL) return null; + + /* + * Send the event because WM_HSCROLL and + * WM_VSCROLL are sent from a modal message + * loop in Windows that is active when the + * user is scrolling. + */ + Event event = new Event (); + switch (code) { + case OS.SB_THUMBPOSITION: event.detail = DWT.NONE; break; + case OS.SB_THUMBTRACK: event.detail = DWT.DRAG; break; + case OS.SB_TOP: event.detail = DWT.HOME; break; + case OS.SB_BOTTOM: event.detail = DWT.END; break; + case OS.SB_LINEDOWN: event.detail = DWT.ARROW_DOWN; break; + case OS.SB_LINEUP: event.detail = DWT.ARROW_UP; break; + case OS.SB_PAGEDOWN: event.detail = DWT.PAGE_DOWN; break; + case OS.SB_PAGEUP: event.detail = DWT.PAGE_UP; break; + } + sendEvent (DWT.Selection, event); + // the widget could be destroyed at this point + return null; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Scrollable.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,424 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Scrollable; + +import dwt.widgets.Control; +import dwt.widgets.Composite; +import dwt.graphics.Rectangle; + +class Scrollable : Control { + this(); + this( Composite, int ); +public Rectangle computeTrim (int x, int y, int width, int height) ; +public Rectangle getClientArea () ; +} + +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Rectangle; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SCROLLINFO; +import dwt.internal.win32.TCHAR; + +/** + * This class is the abstract superclass of all classes which + * represent controls that have standard scroll bars. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>H_SCROLL, V_SCROLL</dd> + * <dt><b>Events:</b> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + */ + +public abstract class Scrollable extends Control { + ScrollBar horizontalBar, verticalBar; + +/** + * Prevents uninitialized instances from being created outside the package. + */ +Scrollable () { +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#H_SCROLL + * @see DWT#V_SCROLL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Scrollable (Composite parent, int style) { + super (parent, style); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +/** + * Given a desired <em>client area</em> for the receiver + * (as described by the arguments), returns the bounding + * rectangle which would be required to produce that client + * area. + * <p> + * In other words, it returns a rectangle such that, if the + * receiver's bounds were set to that rectangle, the area + * of the receiver which is capable of displaying data + * (that is, not covered by the "trimmings") would be the + * rectangle described by the arguments (relative to the + * receiver's parent). + * </p> + * + * @param x the desired x coordinate of the client area + * @param y the desired y coordinate of the client area + * @param width the desired width of the client area + * @param height the desired height of the client area + * @return the required bounds to produce the given client area + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getClientArea + */ +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + int scrolledHandle = scrolledHandle (); + RECT rect = new RECT (); + OS.SetRect (rect, x, y, x + width, y + height); + int bits1 = OS.GetWindowLong (scrolledHandle, OS.GWL_STYLE); + int bits2 = OS.GetWindowLong (scrolledHandle, OS.GWL_EXSTYLE); + OS.AdjustWindowRectEx (rect, bits1, false, bits2); + if (horizontalBar !is null) rect.bottom += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + if (verticalBar !is null) rect.right += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + int nWidth = rect.right - rect.left, nHeight = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, nWidth, nHeight); +} + +ScrollBar createScrollBar (int type) { + ScrollBar bar = new ScrollBar (this, type); + if ((state & CANVAS) !is 0) { + bar.setMaximum (100); + bar.setThumb (10); + } + return bar; +} + +void createWidget () { + super.createWidget (); + if ((style & DWT.H_SCROLL) !is 0) horizontalBar = createScrollBar (DWT.H_SCROLL); + if ((style & DWT.V_SCROLL) !is 0) verticalBar = createScrollBar (DWT.V_SCROLL); +} + +/** + * Returns a rectangle which describes the area of the + * receiver which is capable of displaying data (that is, + * not covered by the "trimmings"). + * + * @return the client area + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #computeTrim + */ +public Rectangle getClientArea () { + checkWidget (); + forceResize (); + RECT rect = new RECT (); + int scrolledHandle = scrolledHandle (); + OS.GetClientRect (scrolledHandle, rect); + int x = rect.left, y = rect.top; + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + if (scrolledHandle !is handle) { + OS.GetClientRect (handle, rect); + OS.MapWindowPoints(handle, scrolledHandle, rect, 2); + x = -rect.left; + y = -rect.top; + } + return new Rectangle (x, y, width, height); +} + +/** + * Returns the receiver's horizontal scroll bar if it has + * one, and null if it does not. + * + * @return the horizontal scroll bar (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ScrollBar getHorizontalBar () { + checkWidget (); + return horizontalBar; +} + +/** + * Returns the receiver's vertical scroll bar if it has + * one, and null if it does not. + * + * @return the vertical scroll bar (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ScrollBar getVerticalBar () { + checkWidget (); + return verticalBar; +} + +void releaseChildren (bool destroy) { + if (horizontalBar !is null) { + horizontalBar.release (false); + horizontalBar = null; + } + if (verticalBar !is null) { + verticalBar.release (false); + verticalBar = null; + } + super.releaseChildren (destroy); +} + +int scrolledHandle () { + return handle; +} + +int widgetExtStyle () { + return super.widgetExtStyle (); + /* + * This code is intentionally commented. In future, + * we may wish to support different standard Windows + * edge styles. The issue here is that not all of + * these styles are available on the other platforms + * this would need to be a hint. + */ +// if ((style & DWT.BORDER) !is 0) return OS.WS_EX_CLIENTEDGE; +// if ((style & DWT.SHADOW_IN) !is 0) return OS.WS_EX_STATICEDGE; +// return super.widgetExtStyle (); +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.WS_TABSTOP; + if ((style & DWT.H_SCROLL) !is 0) bits |= OS.WS_HSCROLL; + if ((style & DWT.V_SCROLL) !is 0) bits |= OS.WS_VSCROLL; + return bits; +} + +TCHAR windowClass () { + return display.windowClass; +} + +int windowProc () { + return display.windowProc; +} + +LRESULT WM_HSCROLL (int wParam, int lParam) { + LRESULT result = super.WM_HSCROLL (wParam, lParam); + if (result !is null) return result; + + /* + * Bug on WinCE. lParam should be NULL when the message is not sent + * by a scroll bar control, but it contains the handle to the window. + * When the message is sent by a scroll bar control, it correctly + * contains the handle to the scroll bar. The fix is to check for + * both. + */ + if (horizontalBar !is null && (lParam is 0 || lParam is handle)) { + return wmScroll (horizontalBar, (state & CANVAS) !is 0, handle, OS.WM_HSCROLL, wParam, lParam); + } + return result; +} + +LRESULT WM_MOUSEWHEEL (int wParam, int lParam) { + LRESULT result = super.WM_MOUSEWHEEL (wParam, lParam); + if (result !is null) return result; + + /* + * Translate WM_MOUSEWHEEL to WM_VSCROLL or WM_HSCROLL. + */ + if ((state & CANVAS) !is 0) { + if ((wParam & (OS.MK_SHIFT | OS.MK_CONTROL)) !is 0) return result; + bool vertical = verticalBar !is null && verticalBar.getEnabled (); + bool horizontal = horizontalBar !is null && horizontalBar.getEnabled (); + int msg = (vertical) ? OS.WM_VSCROLL : (horizontal) ? OS.WM_HSCROLL : 0; + if (msg is 0) return result; + int [] value = new int [1]; + OS.SystemParametersInfo (OS.SPI_GETWHEELSCROLLLINES, 0, value, 0); + int delta = (short) (wParam >> 16); + int code = 0, count = 0; + if (value [0] is OS.WHEEL_PAGESCROLL) { + code = delta < 0 ? OS.SB_PAGEDOWN : OS.SB_PAGEUP; + count = Math.abs (delta / OS.WHEEL_DELTA); + } else { + code = delta < 0 ? OS.SB_LINEDOWN : OS.SB_LINEUP; + delta = Math.abs (delta); + if (delta < OS.WHEEL_DELTA) return result; + if (msg is OS.WM_VSCROLL) { + count = value [0] * delta / OS.WHEEL_DELTA; + } else { + count = delta / OS.WHEEL_DELTA; + } + } + for (int i=0; i<count; i++) { + OS.SendMessage (handle, msg, code, 0); + } + return LRESULT.ZERO; + } + + /* + * When the native widget scrolls inside WM_MOUSEWHEEL, it + * may or may not send a WM_VSCROLL or WM_HSCROLL to do the + * actual scrolling. This depends on the implementation of + * each native widget. In order to ensure that application + * code is notified when the scroll bar moves, compare the + * scroll bar position before and after the WM_MOUSEWHEEL. + * If the native control sends a WM_VSCROLL or WM_HSCROLL, + * then the application has already been notified. If not + * explicitly send the event. + */ + int vPosition = verticalBar is null ? 0 : verticalBar.getSelection (); + int hPosition = horizontalBar is null ? 0 : horizontalBar.getSelection (); + int code = callWindowProc (handle, OS.WM_MOUSEWHEEL, wParam, lParam); + if (verticalBar !is null) { + int position = verticalBar.getSelection (); + if (position !is vPosition) { + Event event = new Event (); + event.detail = position < vPosition ? DWT.PAGE_UP : DWT.PAGE_DOWN; + verticalBar.sendEvent (DWT.Selection, event); + } + } + if (horizontalBar !is null) { + int position = horizontalBar.getSelection (); + if (position !is hPosition) { + Event event = new Event (); + event.detail = position < hPosition ? DWT.PAGE_UP : DWT.PAGE_DOWN; + horizontalBar.sendEvent (DWT.Selection, event); + } + } + return new LRESULT (code); +} + +LRESULT WM_SIZE (int wParam, int lParam) { + int code = callWindowProc (handle, OS.WM_SIZE, wParam, lParam); + super.WM_SIZE (wParam, lParam); + // widget may be disposed at this point + if (code is 0) return LRESULT.ZERO; + return new LRESULT (code); +} + +LRESULT WM_VSCROLL (int wParam, int lParam) { + LRESULT result = super.WM_VSCROLL (wParam, lParam); + if (result !is null) return result; + /* + * Bug on WinCE. lParam should be NULL when the message is not sent + * by a scroll bar control, but it contains the handle to the window. + * When the message is sent by a scroll bar control, it correctly + * contains the handle to the scroll bar. The fix is to check for + * both. + */ + if (verticalBar !is null && (lParam is 0 || lParam is handle)) { + return wmScroll (verticalBar, (state & CANVAS) !is 0, handle, OS.WM_VSCROLL, wParam, lParam); + } + return result; +} + +LRESULT wmScroll (ScrollBar bar, bool update, int hwnd, int msg, int wParam, int lParam) { + LRESULT result = null; + if (update) { + int type = msg is OS.WM_HSCROLL ? OS.SB_HORZ : OS.SB_VERT; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_TRACKPOS | OS.SIF_POS | OS.SIF_RANGE; + OS.GetScrollInfo (hwnd, type, info); + info.fMask = OS.SIF_POS; + int code = wParam & 0xFFFF; + switch (code) { + case OS.SB_ENDSCROLL: return null; + case OS.SB_THUMBPOSITION: + case OS.SB_THUMBTRACK: + /* + * Note: On WinCE, the value in SB_THUMBPOSITION is relative to nMin. + * Same for SB_THUMBPOSITION 'except' for the very first thumb track + * message which has the actual value of nMin. This is a problem when + * nMin is not zero. + */ + info.nPos = info.nTrackPos; + break; + case OS.SB_TOP: + info.nPos = info.nMin; + break; + case OS.SB_BOTTOM: + info.nPos = info.nMax; + break; + case OS.SB_LINEDOWN: + info.nPos += bar.getIncrement (); + break; + case OS.SB_LINEUP: + int increment = bar.getIncrement (); + info.nPos = Math.max (info.nMin, info.nPos - increment); + break; + case OS.SB_PAGEDOWN: + info.nPos += bar.getPageIncrement (); + break; + case OS.SB_PAGEUP: + int pageIncrement = bar.getPageIncrement (); + info.nPos = Math.max (info.nMin, info.nPos - pageIncrement); + break; + } + OS.SetScrollInfo (hwnd, type, info, true); + } else { + int code = callWindowProc (hwnd, msg, wParam, lParam); + result = code is 0 ? LRESULT.ZERO : new LRESULT (code); + } + bar.wmScrollChild (wParam, lParam); + return result; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Shell.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,2306 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Shell; + +import dwt.widgets.Decorations; +class Shell : Decorations { + void checkWidget (); +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ShellListener; +import dwt.graphics.Cursor; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.graphics.Region; +import dwt.internal.win32.CREATESTRUCT; +import dwt.internal.win32.LOGBRUSH; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MINMAXINFO; +import dwt.internal.win32.MSG; +import dwt.internal.win32.NMTTDISPINFO; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SHACTIVATEINFO; +import dwt.internal.win32.SIPINFO; +import dwt.internal.win32.STARTUPINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TOOLINFO; +import dwt.internal.win32.WINDOWPOS; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class represent the "windows" + * which the desktop or "window manager" is managing. + * Instances that do not have a parent (that is, they + * are built using the constructor, which takes a + * <code>Display</code> as the argument) are described + * as <em>top level</em> shells. Instances that do have + * a parent are described as <em>secondary</em> or + * <em>dialog</em> shells. + * <p> + * Instances are always displayed in one of the maximized, + * minimized or normal states: + * <ul> + * <li> + * When an instance is marked as <em>maximized</em>, the + * window manager will typically resize it to fill the + * entire visible area of the display, and the instance + * is usually put in a state where it can not be resized + * (even if it has style <code>RESIZE</code>) until it is + * no longer maximized. + * </li><li> + * When an instance is in the <em>normal</em> state (neither + * maximized or minimized), its appearance is controlled by + * the style constants which were specified when it was created + * and the restrictions of the window manager (see below). + * </li><li> + * When an instance has been marked as <em>minimized</em>, + * its contents (client area) will usually not be visible, + * and depending on the window manager, it may be + * "iconified" (that is, replaced on the desktop by a small + * simplified representation of itself), relocated to a + * distinguished area of the screen, or hidden. Combinations + * of these changes are also possible. + * </li> + * </ul> + * </p><p> + * The <em>modality</em> of an instance may be specified using + * style bits. The modality style bits are used to determine + * whether input is blocked for other shells on the display. + * The <code>PRIMARY_MODAL</code> style allows an instance to block + * input to its parent. The <code>APPLICATION_MODAL</code> style + * allows an instance to block input to every other shell in the + * display. The <code>SYSTEM_MODAL</code> style allows an instance + * to block input to all shells, including shells belonging to + * different applications. + * </p><p> + * Note: The styles supported by this class are treated + * as <em>HINT</em>s, since the window manager for the + * desktop on which the instance is visible has ultimate + * control over the appearance and behavior of decorations + * and modality. For example, some window managers only + * support resizable windows and will always assume the + * RESIZE style, even if it is not set. In addition, if a + * modality style is not supported, it is "upgraded" to a + * more restrictive modality style that is supported. For + * example, if <code>PRIMARY_MODAL</code> is not supported, + * it would be upgraded to <code>APPLICATION_MODAL</code>. + * A modality style may also be "downgraded" to a less + * restrictive style. For example, most operating systems + * no longer support <code>SYSTEM_MODAL</code> because + * it can freeze up the desktop, so this is typically + * downgraded to <code>APPLICATION_MODAL</code>. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>BORDER, CLOSE, MIN, MAX, NO_TRIM, RESIZE, TITLE, ON_TOP, TOOL</dd> + * <dd>APPLICATION_MODAL, MODELESS, PRIMARY_MODAL, SYSTEM_MODAL</dd> + * <dt><b>Events:</b></dt> + * <dd>Activate, Close, Deactivate, Deiconify, Iconify</dd> + * </dl> + * Class <code>DWT</code> provides two "convenience constants" + * for the most commonly required style combinations: + * <dl> + * <dt><code>SHELL_TRIM</code></dt> + * <dd> + * the result of combining the constants which are required + * to produce a typical application top level shell: (that + * is, <code>CLOSE | TITLE | MIN | MAX | RESIZE</code>) + * </dd> + * <dt><code>DIALOG_TRIM</code></dt> + * <dd> + * the result of combining the constants which are required + * to produce a typical application dialog shell: (that + * is, <code>TITLE | CLOSE | BORDER</code>) + * </dd> + * </dl> + * </p> + * <p> + * Note: Only one of the styles APPLICATION_MODAL, MODELESS, + * PRIMARY_MODAL and SYSTEM_MODAL may be specified. + * </p><p> + * IMPORTANT: This class is not intended to be subclassed. + * </p> + * + * @see Decorations + * @see DWT + */ +public class Shell extends Decorations { + Menu activeMenu; + ToolTip [] toolTips; + int hIMC, hwndMDIClient, lpstrTip, toolTipHandle, balloonTipHandle; + int minWidth = DWT.DEFAULT, minHeight = DWT.DEFAULT; + int [] brushes; + bool showWithParent; + String toolTitle, balloonTitle; + int toolIcon, balloonIcon; + int windowProc; + Control lastActive, lockToolTipControl; + SHACTIVATEINFO psai; + Region region; + static /*final*/ int ToolTipProc; + static final int DialogProc; + static final TCHAR DialogClass = new TCHAR (0, OS.IsWinCE ? "Dialog" : "#32770", true); + final static int [] SYSTEM_COLORS = { + OS.COLOR_BTNFACE, + OS.COLOR_WINDOW, + OS.COLOR_BTNTEXT, + OS.COLOR_WINDOWTEXT, + OS.COLOR_HIGHLIGHT, + OS.COLOR_SCROLLBAR, + }; + final static int BRUSHES_SIZE = 32; + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, DialogClass, lpWndClass); + DialogProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class. This is equivalent + * to calling <code>Shell((Display) null)</code>. + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public Shell () { + this ((Display) null); +} + +/** + * Constructs a new instance of this class given only the style + * value describing its behavior and appearance. This is equivalent + * to calling <code>Shell((Display) null, style)</code>. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param style the style of control to construct + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#BORDER + * @see DWT#CLOSE + * @see DWT#MIN + * @see DWT#MAX + * @see DWT#RESIZE + * @see DWT#TITLE + * @see DWT#NO_TRIM + * @see DWT#SHELL_TRIM + * @see DWT#DIALOG_TRIM + * @see DWT#MODELESS + * @see DWT#PRIMARY_MODAL + * @see DWT#APPLICATION_MODAL + * @see DWT#SYSTEM_MODAL + */ +public Shell (int style) { + this ((Display) null, style); +} + +/** + * Constructs a new instance of this class given only the display + * to create it on. It is created with style <code>DWT.SHELL_TRIM</code>. + * <p> + * Note: Currently, null can be passed in for the display argument. + * This has the effect of creating the shell on the currently active + * display if there is one. If there is no current display, the + * shell is created on a "default" display. <b>Passing in null as + * the display argument is not considered to be good coding style, + * and may not be supported in a future release of DWT.</b> + * </p> + * + * @param display the display to create the shell on + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public Shell (Display display) { + this (display, OS.IsWinCE ? DWT.NONE : DWT.SHELL_TRIM); +} + +/** + * Constructs a new instance of this class given the display + * to create it on and a style value describing its behavior + * and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p><p> + * Note: Currently, null can be passed in for the display argument. + * This has the effect of creating the shell on the currently active + * display if there is one. If there is no current display, the + * shell is created on a "default" display. <b>Passing in null as + * the display argument is not considered to be good coding style, + * and may not be supported in a future release of DWT.</b> + * </p> + * + * @param display the display to create the shell on + * @param style the style of control to construct + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#BORDER + * @see DWT#CLOSE + * @see DWT#MIN + * @see DWT#MAX + * @see DWT#RESIZE + * @see DWT#TITLE + * @see DWT#NO_TRIM + * @see DWT#SHELL_TRIM + * @see DWT#DIALOG_TRIM + * @see DWT#MODELESS + * @see DWT#PRIMARY_MODAL + * @see DWT#APPLICATION_MODAL + * @see DWT#SYSTEM_MODAL + */ +public Shell (Display display, int style) { + this (display, null, style, 0, false); +} + +Shell (Display display, Shell parent, int style, int handle, bool embedded) { + super (); + checkSubclass (); + if (display is null) display = Display.getCurrent (); + if (display is null) display = Display.getDefault (); + if (!display.isValidThread ()) { + error (DWT.ERROR_THREAD_INVALID_ACCESS); + } + if (parent !is null && parent.isDisposed ()) { + error (DWT.ERROR_INVALID_ARGUMENT); + } + this.style = checkStyle (style); + this.parent = parent; + this.display = display; + this.handle = handle; + if (handle !is 0 && !embedded) { + state |= FOREIGN_HANDLE; + } + createWidget (); +} + +/** + * Constructs a new instance of this class given only its + * parent. It is created with style <code>DWT.DIALOG_TRIM</code>. + * <p> + * Note: Currently, null can be passed in for the parent. + * This has the effect of creating the shell on the currently active + * display if there is one. If there is no current display, the + * shell is created on a "default" display. <b>Passing in null as + * the parent is not considered to be good coding style, + * and may not be supported in a future release of DWT.</b> + * </p> + * + * @param parent a shell which will be the parent of the new instance + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +public Shell (Shell parent) { + this (parent, OS.IsWinCE ? DWT.NONE : DWT.DIALOG_TRIM); +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p><p> + * Note: Currently, null can be passed in for the parent. + * This has the effect of creating the shell on the currently active + * display if there is one. If there is no current display, the + * shell is created on a "default" display. <b>Passing in null as + * the parent is not considered to be good coding style, + * and may not be supported in a future release of DWT.</b> + * </p> + * + * @param parent a shell which will be the parent of the new instance + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#BORDER + * @see DWT#CLOSE + * @see DWT#MIN + * @see DWT#MAX + * @see DWT#RESIZE + * @see DWT#TITLE + * @see DWT#NO_TRIM + * @see DWT#SHELL_TRIM + * @see DWT#DIALOG_TRIM + * @see DWT#ON_TOP + * @see DWT#TOOL + * @see DWT#MODELESS + * @see DWT#PRIMARY_MODAL + * @see DWT#APPLICATION_MODAL + * @see DWT#SYSTEM_MODAL + */ +public Shell (Shell parent, int style) { + this (parent !is null ? parent.display : null, parent, style, 0, false); +} + +/** + * Invokes platform specific functionality to allocate a new shell. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Shell</code>. It is marked public only so that it + * can be shared within the packages provided by DWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + * + * @param display the display for the shell + * @param handle the handle for the shell + * @return a new shell object containing the specified display and handle + */ +public static Shell win32_new (Display display, int handle) { + return new Shell (display, null, DWT.NO_TRIM, handle, true); +} + +public static Shell internal_new (Display display, int handle) { + return new Shell (display, null, DWT.NO_TRIM, handle, false); +} + +static int checkStyle (int style) { + style = Decorations.checkStyle (style); + int mask = DWT.SYSTEM_MODAL | DWT.APPLICATION_MODAL | DWT.PRIMARY_MODAL; + int bits = style & ~mask; + if ((style & DWT.SYSTEM_MODAL) !is 0) return bits | DWT.SYSTEM_MODAL; + if ((style & DWT.APPLICATION_MODAL) !is 0) return bits | DWT.APPLICATION_MODAL; + if ((style & DWT.PRIMARY_MODAL) !is 0) return bits | DWT.PRIMARY_MODAL; + return bits; +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when operations are performed on the receiver, + * by sending the listener one of the messages defined in the + * <code>ShellListener</code> interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ShellListener + * @see #removeShellListener + */ +public void addShellListener (ShellListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Close,typedListener); + addListener (DWT.Iconify,typedListener); + addListener (DWT.Deiconify,typedListener); + addListener (DWT.Activate, typedListener); + addListener (DWT.Deactivate, typedListener); +} + +int balloonTipHandle () { + if (balloonTipHandle is 0) createBalloonTipHandle (); + return balloonTipHandle; +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + if (hwnd is toolTipHandle || hwnd is balloonTipHandle) { + return OS.CallWindowProc (ToolTipProc, hwnd, msg, wParam, lParam); + } + if (hwndMDIClient !is 0) { + return OS.DefFrameProc (hwnd, hwndMDIClient, msg, wParam, lParam); + } + if (windowProc !is 0) { + return OS.CallWindowProc (windowProc, hwnd, msg, wParam, lParam); + } + if ((style & DWT.TOOL) !is 0) { + int trim = DWT.TITLE | DWT.CLOSE | DWT.MIN | DWT.MAX | DWT.BORDER | DWT.RESIZE; + if ((style & trim) is 0) return OS.DefWindowProc (hwnd, msg, wParam, lParam); + } + if (parent !is null) { + switch (msg) { + case OS.WM_KILLFOCUS: + case OS.WM_SETFOCUS: + return OS.DefWindowProc (hwnd, msg, wParam, lParam); + } + return OS.CallWindowProc (DialogProc, hwnd, msg, wParam, lParam); + } + return OS.DefWindowProc (hwnd, msg, wParam, lParam); +} + +/** + * Requests that the window manager close the receiver in + * the same way it would be closed when the user clicks on + * the "close box" or performs some other platform specific + * key or mouse combination that indicates the window + * should be removed. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#Close + * @see #dispose + */ +public void close () { + checkWidget (); + closeWidget (); +} + +void createBalloonTipHandle () { + balloonTipHandle = OS.CreateWindowEx ( + 0, + new TCHAR (0, OS.TOOLTIPS_CLASS, true), + null, + OS.TTS_ALWAYSTIP | OS.TTS_BALLOON, + OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0, + handle, + 0, + OS.GetModuleHandle (null), + null); + if (balloonTipHandle is 0) error (DWT.ERROR_NO_HANDLES); + if (ToolTipProc is 0) { + ToolTipProc = OS.GetWindowLong (balloonTipHandle, OS.GWL_WNDPROC); + } + /* + * Feature in Windows. Despite the fact that the + * tool tip text contains \r\n, the tooltip will + * not honour the new line unless TTM_SETMAXTIPWIDTH + * is set. The fix is to set TTM_SETMAXTIPWIDTH to + * a large value. + */ + OS.SendMessage (balloonTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); + display.addControl (balloonTipHandle, this); + OS.SetWindowLong (balloonTipHandle, OS.GWL_WNDPROC, display.windowProc); +} + +void createHandle () { + bool embedded = handle !is 0 && (state & FOREIGN_HANDLE) is 0; + + /* + * On Windows 98 and NT, setting a window to be the + * top most window using HWND_TOPMOST can result in a + * parent dialog shell being moved behind its parent + * if the dialog has a sibling that is currently on top + * This only occurs using SetWindowPos (), not when the + * handle is created. + */ + /* + * The following code is intentionally commented. + */ +// if ((style & DWT.ON_TOP) !is 0) display.lockActiveWindow = true; + if (handle is 0 || embedded) { + super.createHandle (); + } else { + state |= CANVAS; + if ((style & (DWT.H_SCROLL | DWT.V_SCROLL)) is 0) { + state |= THEME_BACKGROUND; + } + windowProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + } + + /* + * The following code is intentionally commented. + */ +// if ((style & DWT.ON_TOP) !is 0) display.lockActiveWindow = false; + + if (!embedded) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bits &= ~(OS.WS_OVERLAPPED | OS.WS_CAPTION); + if (!OS.IsWinCE) bits |= OS.WS_POPUP; + if ((style & DWT.TITLE) !is 0) bits |= OS.WS_CAPTION; + if ((style & DWT.NO_TRIM) is 0) { + if ((style & (DWT.BORDER | DWT.RESIZE)) is 0) bits |= OS.WS_BORDER; + } + /* + * Bug in Windows. When the WS_CAPTION bits are cleared using + * SetWindowLong(), Windows does not resize the client area of + * the window to get rid of the caption until the first resize. + * The fix is to use SetWindowPos() with SWP_DRAWFRAME to force + * the frame to be redrawn and resized. + */ + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + int flags = OS.SWP_DRAWFRAME | OS.SWP_NOMOVE | OS.SWP_NOSIZE | OS.SWP_NOZORDER | OS.SWP_NOACTIVATE; + SetWindowPos (handle, 0, 0, 0, 0, 0, flags); + if (OS.IsWinCE) _setMaximized (true); + if (OS.IsPPC) { + psai = new SHACTIVATEINFO (); + psai.cbSize = SHACTIVATEINFO.sizeof; + } + } + if (OS.IsDBLocale) { + hIMC = OS.ImmCreateContext (); + if (hIMC !is 0) OS.ImmAssociateContext (handle, hIMC); + } +} + +void createToolTip (ToolTip toolTip) { + int id = 0; + if (toolTips is null) toolTips = new ToolTip [4]; + while (id < toolTips.length && toolTips [id] !is null) id++; + if (id is toolTips.length) { + ToolTip [] newToolTips = new ToolTip [toolTips.length + 4]; + System.arraycopy (toolTips, 0, newToolTips, 0, toolTips.length); + toolTips = newToolTips; + } + toolTips [id] = toolTip; + toolTip.id = id + Display.ID_START; + if (OS.IsWinCE) return; + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.hwnd = handle; + lpti.uId = toolTip.id; + lpti.uFlags = OS.TTF_TRACK; + lpti.lpszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (toolTip.hwndToolTip (), OS.TTM_ADDTOOL, 0, lpti); +} + +void createToolTipHandle () { + toolTipHandle = OS.CreateWindowEx ( + 0, + new TCHAR (0, OS.TOOLTIPS_CLASS, true), + null, + OS.TTS_ALWAYSTIP, + OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0, + handle, + 0, + OS.GetModuleHandle (null), + null); + if (toolTipHandle is 0) error (DWT.ERROR_NO_HANDLES); + if (ToolTipProc is 0) { + ToolTipProc = OS.GetWindowLong (toolTipHandle, OS.GWL_WNDPROC); + } + /* + * Feature in Windows. Despite the fact that the + * tool tip text contains \r\n, the tooltip will + * not honour the new line unless TTM_SETMAXTIPWIDTH + * is set. The fix is to set TTM_SETMAXTIPWIDTH to + * a large value. + */ + OS.SendMessage (toolTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); + display.addControl (toolTipHandle, this); + OS.SetWindowLong (toolTipHandle, OS.GWL_WNDPROC, display.windowProc); +} + +void deregister () { + super.deregister (); + if (toolTipHandle !is 0) display.removeControl (toolTipHandle); + if (balloonTipHandle !is 0) display.removeControl (balloonTipHandle); +} + +void destroyToolTip (ToolTip toolTip) { + if (toolTips is null) return; + toolTips [toolTip.id - Display.ID_START] = null; + if (OS.IsWinCE) return; + if (balloonTipHandle !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.uId = toolTip.id; + lpti.hwnd = handle; + OS.SendMessage (balloonTipHandle, OS.TTM_DELTOOL, 0, lpti); + } + toolTip.id = -1; +} + +void destroyWidget () { + fixActiveShell (); + super.destroyWidget (); +} + +public void dispose () { + /* + * This code is intentionally commented. On some + * platforms, the owner window is repainted right + * away when a dialog window exits. This behavior + * is currently unspecified. + */ +// /* +// * Note: It is valid to attempt to dispose a widget +// * more than once. If this happens, fail silently. +// */ +// if (!isValidWidget ()) return; +// if (!isValidThread ()) error (DWT.ERROR_THREAD_INVALID_ACCESS); +// Display oldDisplay = display; + super.dispose (); + // widget is disposed at this point +// if (oldDisplay !is null) oldDisplay.update (); +} + +void enableWidget (bool enabled) { + if (enabled) { + state &= ~DISABLED; + } else { + state |= DISABLED; + } + if (Display.TrimEnabled) { + if (isActive ()) setItemEnabled (OS.SC_CLOSE, enabled); + } else { + OS.EnableWindow (handle, enabled); + } +} + +int findBrush (int value, int lbStyle) { + if (lbStyle is OS.BS_SOLID) { + for (int i=0; i<SYSTEM_COLORS.length; i++) { + if (value is OS.GetSysColor (SYSTEM_COLORS [i])) { + return OS.GetSysColorBrush (SYSTEM_COLORS [i]); + } + } + } + if (brushes is null) brushes = new int [BRUSHES_SIZE]; + LOGBRUSH logBrush = new LOGBRUSH (); + for (int i=0; i<brushes.length; i++) { + int hBrush = brushes [i]; + if (hBrush is 0) break; + OS.GetObject (hBrush, LOGBRUSH.sizeof, logBrush); + switch (logBrush.lbStyle) { + case OS.BS_SOLID: + if (lbStyle is OS.BS_SOLID) { + if (logBrush.lbColor is value) return hBrush; + } + break; + case OS.BS_PATTERN: + if (lbStyle is OS.BS_PATTERN) { + if (logBrush.lbHatch is value) return hBrush; + } + break; + } + } + int length = brushes.length; + int hBrush = brushes [--length]; + if (hBrush !is 0) OS.DeleteObject (hBrush); + System.arraycopy (brushes, 0, brushes, 1, length); + switch (lbStyle) { + case OS.BS_SOLID: + hBrush = OS.CreateSolidBrush (value); + break; + case OS.BS_PATTERN: + hBrush = OS.CreatePatternBrush (value); + break; + } + return brushes [0] = hBrush; +} + +Control findBackgroundControl () { + return background !is -1 || backgroundImage !is null ? this : null; +} + +Cursor findCursor () { + return cursor; +} + +Control findThemeControl () { + return null; +} + +ToolTip findToolTip (int id) { + if (toolTips is null) return null; + id = id - Display.ID_START; + return 0 <= id && id < toolTips.length ? toolTips [id] : null; +} + +void fixActiveShell () { + /* + * Feature in Windows. When the active shell is disposed + * or hidden, Windows normally makes the parent shell active + * and assigns focus. This does not happen when the parent + * shell is disabled. Instead, Windows assigns focus to the + * next shell on the desktop (possibly a shell in another + * application). The fix is to activate the disabled parent + * shell before disposing or hiding the active shell. + */ + int hwndParent = OS.GetParent (handle); + if (hwndParent !is 0 && handle is OS.GetActiveWindow ()) { + if (!OS.IsWindowEnabled (hwndParent) && OS.IsWindowVisible (hwndParent)) { + OS.SetActiveWindow (hwndParent); + } + } +} + +void fixShell (Shell newShell, Control control) { + if (this is newShell) return; + if (control is lastActive) setActiveControl (null); + String toolTipText = control.toolTipText; + if (toolTipText !is null) { + control.setToolTipText (this, null); + control.setToolTipText (newShell, toolTipText); + } +} + +void fixToolTip () { + /* + * Bug in Windows. On XP, when a tooltip is + * hidden due to a time out or mouse press, + * the tooltip remains active although no + * longer visible and won't show again until + * another tooltip becomes active. If there + * is only one tooltip in the window, it will + * never show again. The fix is to remove the + * current tooltip and add it again every time + * the mouse leaves the control. + */ + if (OS.COMCTL32_MAJOR >= 6) { + if (toolTipHandle is 0) return; + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + if (OS.SendMessage (toolTipHandle, OS.TTM_GETCURRENTTOOL, 0, lpti) !is 0) { + if ((lpti.uFlags & OS.TTF_IDISHWND) !is 0) { + OS.SendMessage (toolTipHandle, OS.TTM_DELTOOL, 0, lpti); + OS.SendMessage (toolTipHandle, OS.TTM_ADDTOOL, 0, lpti); + } + } + } +} + +/** + * If the receiver is visible, moves it to the top of the + * drawing order for the display on which it was created + * (so that all other shells on that display, which are not + * the receiver's children will be drawn behind it) and forces + * the window manager to make the shell active. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + * @see Control#moveAbove + * @see Control#setFocus + * @see Control#setVisible + * @see Display#getActiveShell + * @see Decorations#setDefaultButton(Button) + * @see Shell#open + * @see Shell#setActive + */ +public void forceActive () { + checkWidget (); + if(!isVisible()) return; + OS.SetForegroundWindow (handle); +} + +void forceResize () { + /* Do nothing */ +} + +public Rectangle getBounds () { + checkWidget (); + if (!OS.IsWinCE) { + if (OS.IsIconic (handle)) return super.getBounds (); + } + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +ToolTip getCurrentToolTip () { + if (toolTipHandle !is 0) { + ToolTip tip = getCurrentToolTip (toolTipHandle); + if (tip !is null) return tip; + } + if (balloonTipHandle !is 0) { + ToolTip tip = getCurrentToolTip (balloonTipHandle); + if (tip !is null) return tip; + } + return null; +} + +ToolTip getCurrentToolTip (int hwndToolTip) { + if (hwndToolTip is 0) return null; + if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, 0) !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, lpti) !is 0) { + if ((lpti.uFlags & OS.TTF_IDISHWND) is 0) return findToolTip (lpti.uId); + } + } + return null; +} + +public bool getEnabled () { + checkWidget (); + return (state & DISABLED) is 0; +} + +/** + * Returns the receiver's input method editor mode. This + * will be the result of bitwise OR'ing together one or + * more of the following constants defined in class + * <code>DWT</code>: + * <code>NONE</code>, <code>ROMAN</code>, <code>DBCS</code>, + * <code>PHONETIC</code>, <code>NATIVE</code>, <code>ALPHA</code>. + * + * @return the IME mode + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT + */ +public int getImeInputMode () { + checkWidget (); + if (!OS.IsDBLocale) return 0; + int hIMC = OS.ImmGetContext (handle); + int [] lpfdwConversion = new int [1], lpfdwSentence = new int [1]; + bool open = OS.ImmGetOpenStatus (hIMC); + if (open) open = OS.ImmGetConversionStatus (hIMC, lpfdwConversion, lpfdwSentence); + OS.ImmReleaseContext (handle, hIMC); + if (!open) return DWT.NONE; + int result = 0; + if ((lpfdwConversion [0] & OS.IME_CMODE_ROMAN) !is 0) result |= DWT.ROMAN; + if ((lpfdwConversion [0] & OS.IME_CMODE_FULLSHAPE) !is 0) result |= DWT.DBCS; + if ((lpfdwConversion [0] & OS.IME_CMODE_KATAKANA) !is 0) return result | DWT.PHONETIC; + if ((lpfdwConversion [0] & OS.IME_CMODE_NATIVE) !is 0) return result | DWT.NATIVE; + return result | DWT.ALPHA; +} + +public Point getLocation () { + checkWidget (); + if (!OS.IsWinCE) { + if (OS.IsIconic (handle)) { + return super.getLocation (); + } + } + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + return new Point (rect.left, rect.top); +} + +/** + * Returns a point describing the minimum receiver's size. The + * x coordinate of the result is the minimum width of the receiver. + * The y coordinate of the result is the minimum height of the + * receiver. + * + * @return the receiver's size + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public Point getMinimumSize () { + checkWidget (); + int width = Math.max (0, minWidth); + int trim = DWT.TITLE | DWT.CLOSE | DWT.MIN | DWT.MAX; + if ((style & DWT.NO_TRIM) is 0 && (style & trim) !is 0) { + width = Math.max (width, OS.GetSystemMetrics (OS.SM_CXMINTRACK)); + } + int height = Math.max (0, minHeight); + if ((style & DWT.NO_TRIM) is 0 && (style & trim) !is 0) { + if ((style & DWT.RESIZE) !is 0) { + height = Math.max (height, OS.GetSystemMetrics (OS.SM_CYMINTRACK)); + } else { + RECT rect = new RECT (); + int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE); + int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + OS.AdjustWindowRectEx (rect, bits1, false, bits2); + height = Math.max (height, rect.bottom - rect.top); + } + } + return new Point (width, height); +} + +/** + * Returns the region that defines the shape of the shell, + * or null if the shell has the default shape. + * + * @return the region that defines the shape of the shell (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + * + */ +public Region getRegion () { + checkWidget (); + return region; +} + +public Shell getShell () { + checkWidget (); + return this; +} + +public Point getSize () { + checkWidget (); + if (!OS.IsWinCE) { + if (OS.IsIconic (handle)) return super.getSize (); + } + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + return new Point (width, height); +} + +/** + * Returns an array containing all shells which are + * descendants of the receiver. + * <p> + * @return the dialog shells + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Shell [] getShells () { + checkWidget (); + int count = 0; + Shell [] shells = display.getShells (); + for (int i=0; i<shells.length; i++) { + Control shell = shells [i]; + do { + shell = shell.parent; + } while (shell !is null && shell !is this); + if (shell is this) count++; + } + int index = 0; + Shell [] result = new Shell [count]; + for (int i=0; i<shells.length; i++) { + Control shell = shells [i]; + do { + shell = shell.parent; + } while (shell !is null && shell !is this); + if (shell is this) { + result [index++] = shells [i]; + } + } + return result; +} + +Composite findDeferredControl () { + return layoutCount > 0 ? this : null; +} + +public bool isEnabled () { + checkWidget (); + return getEnabled (); +} + +public bool isVisible () { + checkWidget (); + return getVisible (); +} + +int hwndMDIClient () { + if (hwndMDIClient is 0) { + int widgetStyle = OS.MDIS_ALLCHILDSTYLES | OS.WS_CHILD | OS.WS_CLIPCHILDREN | OS.WS_CLIPSIBLINGS; + hwndMDIClient = OS.CreateWindowEx ( + 0, + new TCHAR (0, "MDICLIENT", true), + null, + widgetStyle, + 0, 0, 0, 0, + handle, + 0, + OS.GetModuleHandle (null), + new CREATESTRUCT ()); +// OS.ShowWindow (hwndMDIClient, OS.SW_SHOW); + } + return hwndMDIClient; +} + +/** + * Moves the receiver to the top of the drawing order for + * the display on which it was created (so that all other + * shells on that display, which are not the receiver's + * children will be drawn behind it), marks it visible, + * sets the focus and asks the window manager to make the + * shell active. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Control#moveAbove + * @see Control#setFocus + * @see Control#setVisible + * @see Display#getActiveShell + * @see Decorations#setDefaultButton(Button) + * @see Shell#setActive + * @see Shell#forceActive + */ +public void open () { + checkWidget (); + STARTUPINFO lpStartUpInfo = Display.lpStartupInfo; + if (lpStartUpInfo is null || (lpStartUpInfo.dwFlags & OS.STARTF_USESHOWWINDOW) is 0) { + bringToTop (); + if (isDisposed ()) return; + } + /* + * Feature on WinCE PPC. A new application becomes + * the foreground application only if it has at least + * one visible window before the event loop is started. + * The workaround is to explicitly force the shell to + * be the foreground window. + */ + if (OS.IsWinCE) OS.SetForegroundWindow (handle); + OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); + setVisible (true); + if (isDisposed ()) return; + /* + * Bug in Windows XP. Despite the fact that an icon has been + * set for a window, the task bar displays the wrong icon the + * first time the window is made visible with ShowWindow() after + * a call to BringToTop(), when a long time elapses between the + * ShowWindow() and the time the event queue is read. The icon + * in the window trimming is correct but the one in the task + * bar does not get updated. The fix is to call PeekMessage() + * with the flag PM_NOREMOVE and PM_QS_SENDMESSAGE to respond + * to a cross thread WM_GETICON. + * + * NOTE: This allows other cross thread messages to be delivered, + * most notably WM_ACTIVATE. + */ + MSG msg = new MSG (); + int flags = OS.PM_NOREMOVE | OS.PM_NOYIELD | OS.PM_QS_SENDMESSAGE; + OS.PeekMessage (msg, 0, 0, 0, flags); + if (!restoreFocus () && !traverseGroup (true)) setFocus (); +} + +void register () { + super.register (); + if (toolTipHandle !is 0) display.addControl (toolTipHandle, this); + if (balloonTipHandle !is 0) display.addControl (balloonTipHandle, this); +} + +void releaseBrushes () { + if (brushes !is null) { + for (int i=0; i<brushes.length; i++) { + if (brushes [i] !is 0) OS.DeleteObject (brushes [i]); + } + } + brushes = null; +} + +void releaseChildren (bool destroy) { + Shell [] shells = getShells (); + for (int i=0; i<shells.length; i++) { + Shell shell = shells [i]; + if (shell !is null && !shell.isDisposed ()) { + shell.release (false); + } + } + if (toolTips !is null) { + for (int i=0; i<toolTips.length; i++) { + ToolTip toolTip = toolTips [i]; + if (toolTip !is null && !toolTip.isDisposed ()) { + toolTip.release (false); + } + } + } + toolTips = null; + super.releaseChildren (destroy); +} + +void releaseHandle () { + super.releaseHandle (); + hwndMDIClient = 0; +} + +void releaseParent () { + /* Do nothing */ +} + +void releaseWidget () { + super.releaseWidget (); + releaseBrushes (); + activeMenu = null; + display.clearModal (this); + if (lpstrTip !is 0) { + int hHeap = OS.GetProcessHeap (); + OS.HeapFree (hHeap, 0, lpstrTip); + } + lpstrTip = 0; + toolTipHandle = balloonTipHandle = 0; + if (OS.IsDBLocale) { + if (hIMC !is 0) OS.ImmDestroyContext (hIMC); + } + lastActive = null; + region = null; + toolTitle = balloonTitle = null; + lockToolTipControl = null; +} + +void removeMenu (Menu menu) { + super.removeMenu (menu); + if (menu is activeMenu) activeMenu = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when operations are performed on the receiver. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ShellListener + * @see #addShellListener + */ +public void removeShellListener (ShellListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Close, listener); + eventTable.unhook (DWT.Iconify,listener); + eventTable.unhook (DWT.Deiconify,listener); + eventTable.unhook (DWT.Activate, listener); + eventTable.unhook (DWT.Deactivate, listener); +} + +LRESULT selectPalette (int hPalette) { + int hDC = OS.GetDC (handle); + int hOld = OS.SelectPalette (hDC, hPalette, false); + int result = OS.RealizePalette (hDC); + if (result > 0) { + OS.InvalidateRect (handle, null, true); + } else { + OS.SelectPalette (hDC, hOld, true); + OS.RealizePalette (hDC); + } + OS.ReleaseDC (handle, hDC); + return (result > 0) ? LRESULT.ONE : LRESULT.ZERO; +} + +/** + * If the receiver is visible, moves it to the top of the + * drawing order for the display on which it was created + * (so that all other shells on that display, which are not + * the receiver's children will be drawn behind it) and asks + * the window manager to make the shell active + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + * @see Control#moveAbove + * @see Control#setFocus + * @see Control#setVisible + * @see Display#getActiveShell + * @see Decorations#setDefaultButton(Button) + * @see Shell#open + * @see Shell#setActive + */ +public void setActive () { + checkWidget (); + if (!isVisible ()) return; + bringToTop (); + // widget could be disposed at this point +} + +void setActiveControl (Control control) { + if (control !is null && control.isDisposed ()) control = null; + if (lastActive !is null && lastActive.isDisposed ()) lastActive = null; + if (lastActive is control) return; + + /* + * Compute the list of controls to be activated and + * deactivated by finding the first common parent + * control. + */ + Control [] activate = (control is null) ? new Control [0] : control.getPath (); + Control [] deactivate = (lastActive is null) ? new Control [0] : lastActive.getPath (); + lastActive = control; + int index = 0, length = Math.min (activate.length, deactivate.length); + while (index < length) { + if (activate [index] !is deactivate [index]) break; + index++; + } + + /* + * It is possible (but unlikely), that application + * code could have destroyed some of the widgets. If + * this happens, keep processing those widgets that + * are not disposed. + */ + for (int i=deactivate.length-1; i>=index; --i) { + if (!deactivate [i].isDisposed ()) { + deactivate [i].sendEvent (DWT.Deactivate); + } + } + for (int i=activate.length-1; i>=index; --i) { + if (!activate [i].isDisposed ()) { + activate [i].sendEvent (DWT.Activate); + } + } +} + +void setBounds (int x, int y, int width, int height, int flags, bool defer) { + super.setBounds (x, y, width, height, flags, false); +} + +public void setEnabled (bool enabled) { + checkWidget (); + if (((state & DISABLED) is 0) is enabled) return; + super.setEnabled (enabled); + if (enabled && handle is OS.GetActiveWindow ()) { + if (!restoreFocus ()) traverseGroup (true); + } +} + +/** + * Sets the input method editor mode to the argument which + * should be the result of bitwise OR'ing together one or more + * of the following constants defined in class <code>DWT</code>: + * <code>NONE</code>, <code>ROMAN</code>, <code>DBCS</code>, + * <code>PHONETIC</code>, <code>NATIVE</code>, <code>ALPHA</code>. + * + * @param mode the new IME mode + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT + */ +public void setImeInputMode (int mode) { + checkWidget (); + if (!OS.IsDBLocale) return; + bool imeOn = mode !is DWT.NONE && mode !is DWT.ROMAN; + int hIMC = OS.ImmGetContext (handle); + OS.ImmSetOpenStatus (hIMC, imeOn); + if (imeOn) { + int [] lpfdwConversion = new int [1], lpfdwSentence = new int [1]; + if (OS.ImmGetConversionStatus (hIMC, lpfdwConversion, lpfdwSentence)) { + int newBits = 0; + int oldBits = OS.IME_CMODE_NATIVE | OS.IME_CMODE_KATAKANA; + if ((mode & DWT.PHONETIC) !is 0) { + newBits = OS.IME_CMODE_KATAKANA | OS.IME_CMODE_NATIVE; + oldBits = 0; + } else { + if ((mode & DWT.NATIVE) !is 0) { + newBits = OS.IME_CMODE_NATIVE; + oldBits = OS.IME_CMODE_KATAKANA; + } + } + if ((mode & DWT.DBCS) !is 0) { + newBits |= OS.IME_CMODE_FULLSHAPE; + } else { + oldBits |= OS.IME_CMODE_FULLSHAPE; + } + if ((mode & DWT.ROMAN) !is 0) { + newBits |= OS.IME_CMODE_ROMAN; + } else { + oldBits |= OS.IME_CMODE_ROMAN; + } + lpfdwConversion [0] |= newBits; lpfdwConversion [0] &= ~oldBits; + OS.ImmSetConversionStatus (hIMC, lpfdwConversion [0], lpfdwSentence [0]); + } + } + OS.ImmReleaseContext (handle, hIMC); +} + +/** + * Sets the receiver's minimum size to the size specified by the arguments. + * If the new minimum size is larger than the current size of the receiver, + * the receiver is resized to the new minimum size. + * + * @param width the new minimum width for the receiver + * @param height the new minimum height for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setMinimumSize (int width, int height) { + checkWidget (); + int widthLimit = 0, heightLimit = 0; + int trim = DWT.TITLE | DWT.CLOSE | DWT.MIN | DWT.MAX; + if ((style & DWT.NO_TRIM) is 0 && (style & trim) !is 0) { + widthLimit = OS.GetSystemMetrics (OS.SM_CXMINTRACK); + if ((style & DWT.RESIZE) !is 0) { + heightLimit = OS.GetSystemMetrics (OS.SM_CYMINTRACK); + } else { + RECT rect = new RECT (); + int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE); + int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + OS.AdjustWindowRectEx (rect, bits1, false, bits2); + heightLimit = rect.bottom - rect.top; + } + } + minWidth = Math.max (widthLimit, width); + minHeight = Math.max (heightLimit, height); + Point size = getSize (); + int newWidth = Math.max (size.x, minWidth); + int newHeight = Math.max (size.y, minHeight); + if (minWidth <= widthLimit) minWidth = DWT.DEFAULT; + if (minHeight <= heightLimit) minHeight = DWT.DEFAULT; + if (newWidth !is size.x || newHeight !is size.y) setSize (newWidth, newHeight); +} + +/** + * Sets the receiver's minimum size to the size specified by the argument. + * If the new minimum size is larger than the current size of the receiver, + * the receiver is resized to the new minimum size. + * + * @param size the new minimum size for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setMinimumSize (Point size) { + checkWidget (); + if (size is null) error (DWT.ERROR_NULL_ARGUMENT); + setMinimumSize (size.x, size.y); +} + +void setItemEnabled (int cmd, bool enabled) { + int hMenu = OS.GetSystemMenu (handle, false); + if (hMenu is 0) return; + int flags = OS.MF_ENABLED; + if (!enabled) flags = OS.MF_DISABLED | OS.MF_GRAYED; + OS.EnableMenuItem (hMenu, cmd, OS.MF_BYCOMMAND | flags); +} + +void setParent () { + /* Do nothing. Not necessary for Shells */ +} + +/** + * Sets the shape of the shell to the region specified + * by the argument. When the argument is null, the + * default shape of the shell is restored. The shell + * must be created with the style DWT.NO_TRIM in order + * to specify a region. + * + * @param region the region that defines the shape of the shell (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the region has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + * + */ +public void setRegion (Region region) { + checkWidget (); + if ((style & DWT.NO_TRIM) is 0) return; + if (region !is null && region.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + int hRegion = 0; + if (region !is null) { + hRegion = OS.CreateRectRgn (0, 0, 0, 0); + OS.CombineRgn (hRegion, region.handle, hRegion, OS.RGN_OR); + } + OS.SetWindowRgn (handle, hRegion, true); + this.region = region; +} + +void setToolTipText (int hwnd, String text) { + if (OS.IsWinCE) return; + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.hwnd = handle; + lpti.uId = hwnd; + int hwndToolTip = toolTipHandle (); + if (text is null) { + OS.SendMessage (hwndToolTip, OS.TTM_DELTOOL, 0, lpti); + } else { + if (OS.SendMessage (hwndToolTip, OS.TTM_GETTOOLINFO, 0, lpti) !is 0) { + OS.SendMessage (hwndToolTip, OS.TTM_UPDATE, 0, 0); + } else { + lpti.uFlags = OS.TTF_IDISHWND | OS.TTF_SUBCLASS; + lpti.lpszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (hwndToolTip, OS.TTM_ADDTOOL, 0, lpti); + } + } +} + +void setToolTipText (NMTTDISPINFO lpnmtdi, byte [] buffer) { + /* + * Ensure that the current position of the mouse + * is inside the client area of the shell. This + * prevents tool tips from popping up over the + * shell trimmings. + */ + if (!hasCursor ()) return; + int hHeap = OS.GetProcessHeap (); + if (lpstrTip !is 0) OS.HeapFree (hHeap, 0, lpstrTip); + int byteCount = buffer.length; + lpstrTip = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpstrTip, buffer, byteCount); + lpnmtdi.lpszText = lpstrTip; +} + +void setToolTipText (NMTTDISPINFO lpnmtdi, char [] buffer) { + /* + * Ensure that the current position of the mouse + * is inside the client area of the shell. This + * prevents tool tips from popping up over the + * shell trimmings. + */ + if (!hasCursor ()) return; + int hHeap = OS.GetProcessHeap (); + if (lpstrTip !is 0) OS.HeapFree (hHeap, 0, lpstrTip); + int byteCount = buffer.length * 2; + lpstrTip = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpstrTip, buffer, byteCount); + lpnmtdi.lpszText = lpstrTip; +} + +void setToolTipTitle (int hwndToolTip, String text, int icon) { + /* + * Bug in Windows. For some reason, when TTM_SETTITLE + * is used to set the title of a tool tip, Windows leaks + * GDI objects. This happens even when TTM_SETTITLE is + * called with TTI_NONE and NULL. The documentation + * states that Windows copies the icon and that the + * programmer must free the copy but does not provide + * API to get the icon. For example, when TTM_SETTITLE + * is called with ICON_ERROR, when TTM_GETTITLE is used + * to query the title and the icon, the uTitleBitmap + * field in the TTGETTITLE struct is zero. The fix + * is to remember these values, only set them when then + * change and leak less. + * + * NOTE: This only happens on Vista. + */ + if (hwndToolTip !is toolTipHandle && hwndToolTip !is balloonTipHandle) { + return; + } + if (hwndToolTip is toolTipHandle) { + if (text is toolTitle || (toolTitle !is null && toolTitle.equals (text))) { + if (icon is toolIcon) return; + } + toolTitle = text; + toolIcon = icon; + } else { + if (hwndToolTip is balloonTipHandle) { + if (text is balloonTitle || (balloonTitle !is null && balloonTitle.equals (text))) { + if (icon is toolIcon) return; + } + balloonTitle = text; + balloonIcon = icon; + } + } + if (text !is null) { + TCHAR pszTitle = new TCHAR (getCodePage (), text, true); + OS.SendMessage (hwndToolTip, OS.TTM_SETTITLE, icon, pszTitle); + } else { + OS.SendMessage (hwndToolTip, OS.TTM_SETTITLE, 0, 0); + } +} + +public void setVisible (bool visible) { + checkWidget (); + if (drawCount !is 0) { + if (((state & HIDDEN) is 0) is visible) return; + } else { + if (visible is OS.IsWindowVisible (handle)) return; + } + + /* + * Feature in Windows. When ShowWindow() is called used to hide + * a window, Windows attempts to give focus to the parent. If the + * parent is disabled by EnableWindow(), focus is assigned to + * another windows on the desktop. This means that if you hide + * a modal window before the parent is enabled, the parent will + * not come to the front. The fix is to change the modal state + * before hiding or showing a window so that this does not occur. + */ + int mask = DWT.PRIMARY_MODAL | DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL; + if ((style & mask) !is 0) { + if (visible) { + display.setModalShell (this); + Control control = display._getFocusControl (); + if (control !is null && !control.isActive ()) { + bringToTop (); + if (isDisposed ()) return; + } + int hwndShell = OS.GetActiveWindow (); + if (hwndShell is 0) { + if (parent !is null) hwndShell = parent.handle; + } + if (hwndShell !is 0) { + OS.SendMessage (hwndShell, OS.WM_CANCELMODE, 0, 0); + } + OS.ReleaseCapture (); + } else { + display.clearModal (this); + } + } else { + updateModal (); + } + + /* + * Bug in Windows. Calling ShowOwnedPopups() to hide the + * child windows of a hidden window causes the application + * to be deactivated. The fix is to call ShowOwnedPopups() + * to hide children before hiding the parent. + */ + if (showWithParent && !visible) { + if (!OS.IsWinCE) OS.ShowOwnedPopups (handle, false); + } + if (!visible) fixActiveShell (); + super.setVisible (visible); + if (isDisposed ()) return; + if (showWithParent is visible) return; + showWithParent = visible; + if (visible) { + if (!OS.IsWinCE) OS.ShowOwnedPopups (handle, true); + } +} + +void subclass () { + super.subclass (); + if (ToolTipProc !is 0) { + int newProc = display.windowProc; + if (toolTipHandle !is 0) { + OS.SetWindowLong (toolTipHandle, OS.GWL_WNDPROC, newProc); + } + if (balloonTipHandle !is 0) { + OS.SetWindowLong (balloonTipHandle, OS.GWL_WNDPROC, newProc); + } + } +} + +int toolTipHandle () { + if (toolTipHandle is 0) createToolTipHandle (); + return toolTipHandle; +} + +bool translateAccelerator (MSG msg) { + if (!isEnabled () || !isActive ()) return false; + if (menuBar !is null && !menuBar.isEnabled ()) return false; + return translateMDIAccelerator (msg) || translateMenuAccelerator (msg); +} + +bool traverseEscape () { + if (parent is null) return false; + if (!isVisible () || !isEnabled ()) return false; + close (); + return true; +} + +void unsubclass () { + super.unsubclass (); + if (ToolTipProc !is 0) { + if (toolTipHandle !is 0) { + OS.SetWindowLong (toolTipHandle, OS.GWL_WNDPROC, ToolTipProc); + } + if (toolTipHandle !is 0) { + OS.SetWindowLong (toolTipHandle, OS.GWL_WNDPROC, ToolTipProc); + } + } +} + +void updateModal () { + if (Display.TrimEnabled) { + setItemEnabled (OS.SC_CLOSE, isActive ()); + } else { + OS.EnableWindow (handle, isActive ()); + } +} + +CREATESTRUCT widgetCreateStruct () { + return null; +} + +int widgetParent () { + if (handle !is 0) return handle; + return parent !is null ? parent.handle : 0; +} + +int widgetExtStyle () { + int bits = super.widgetExtStyle () & ~OS.WS_EX_MDICHILD; + if ((style & DWT.TOOL) !is 0) bits |= OS.WS_EX_TOOLWINDOW; + + /* + * Feature in Windows. When a window that does not have a parent + * is created, it is automatically added to the Windows Task Bar, + * even when it has no title. The fix is to use WS_EX_TOOLWINDOW + * which does not cause the window to appear in the Task Bar. + */ + if (!OS.IsWinCE) { + if (parent is null) { + if ((style & DWT.ON_TOP) !is 0) { + int trim = DWT.TITLE | DWT.CLOSE | DWT.MIN | DWT.MAX; + if ((style & DWT.NO_TRIM) !is 0 || (style & trim) is 0) { + bits |= OS.WS_EX_TOOLWINDOW; + } + } + } + } + + /* + * Bug in Windows 98 and NT. Creating a window with the + * WS_EX_TOPMOST extended style can result in a dialog shell + * being moved behind its parent. The exact case where this + * happens is a shell with two dialog shell children where + * each dialog child has another hidden dialog child with + * the WS_EX_TOPMOST extended style. Clicking on either of + * the visible dialogs causes them to become active but move + * to the back, behind the parent shell. The fix is to + * disallow the WS_EX_TOPMOST extended style on Windows 98 + * and NT. + */ + if (parent !is null) { + if (OS.IsWin95) return bits; + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) { + return bits; + } + } + if ((style & DWT.ON_TOP) !is 0) bits |= OS.WS_EX_TOPMOST; + return bits; +} + +TCHAR windowClass () { + if (OS.IsSP) return DialogClass; + if ((style & DWT.TOOL) !is 0) { + int trim = DWT.TITLE | DWT.CLOSE | DWT.MIN | DWT.MAX | DWT.BORDER | DWT.RESIZE; + if ((style & trim) is 0) return display.windowShadowClass; + } + return parent !is null ? DialogClass : super.windowClass (); +} + +int windowProc () { + if (windowProc !is 0) return windowProc; + if (OS.IsSP) return DialogProc; + if ((style & DWT.TOOL) !is 0) { + int trim = DWT.TITLE | DWT.CLOSE | DWT.MIN | DWT.MAX | DWT.BORDER | DWT.RESIZE; + if ((style & trim) is 0) super.windowProc (); + } + return parent !is null ? DialogProc : super.windowProc (); +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + if (hwnd is toolTipHandle || hwnd is balloonTipHandle) { + switch (msg) { + case OS.WM_TIMER: { + if (wParam !is ToolTip.TIMER_ID) break; + ToolTip tip = getCurrentToolTip (hwnd); + if (tip !is null && tip.autoHide) { + tip.setVisible (false); + } + break; + } + case OS.WM_LBUTTONDOWN: { + ToolTip tip = getCurrentToolTip (hwnd); + if (tip !is null) { + tip.setVisible (false); + tip.postEvent (DWT.Selection); + } + break; + } + } + return callWindowProc (hwnd, msg, wParam, lParam); + } + return super.windowProc (hwnd, msg, wParam, lParam); +} + +int widgetStyle () { + int bits = super.widgetStyle (); + if (handle !is 0) return bits | OS.WS_CHILD; + bits &= ~OS.WS_CHILD; + /* + * Feature in WinCE. Calling CreateWindowEx () with WS_OVERLAPPED + * and a parent window causes the new window to become a WS_CHILD of + * the parent instead of a dialog child. The fix is to use WS_POPUP + * for a window with a parent. + * + * Feature in WinCE PPC. A window without a parent with WS_POPUP + * always shows on top of the Pocket PC 'Today Screen'. The fix + * is to not set WS_POPUP for a window without a parent on WinCE + * devices. + * + * NOTE: WS_POPUP causes CreateWindowEx () to ignore CW_USEDEFAULT + * and causes the default window location and size to be zero. + */ + if (OS.IsWinCE) { + if (OS.IsSP) return bits | OS.WS_POPUP; + return parent is null ? bits : bits | OS.WS_POPUP; + } + + /* + * Use WS_OVERLAPPED for all windows, either dialog or top level + * so that CreateWindowEx () will respect CW_USEDEFAULT and set + * the default window location and size. + * + * NOTE: When a WS_OVERLAPPED window is created, Windows gives + * the new window WS_CAPTION style bits. These two constants are + * as follows: + * + * WS_OVERLAPPED = 0 + * WS_CAPTION = WS_BORDER | WS_DLGFRAME + * + */ + return bits | OS.WS_OVERLAPPED | OS.WS_CAPTION; +} + +LRESULT WM_ACTIVATE (int wParam, int lParam) { + if (OS.IsPPC) { + /* + * Note: this does not work when we get WM_ACTIVATE prior + * to adding a listener. + */ + if (hooks (DWT.HardKeyDown) || hooks (DWT.HardKeyUp)) { + int fActive = wParam & 0xFFFF; + int hwnd = fActive !is 0 ? handle : 0; + for (int bVk=OS.VK_APP1; bVk<=OS.VK_APP6; bVk++) { + OS.SHSetAppKeyWndAssoc ((byte) bVk, hwnd); + } + } + /* Restore SIP state when window is activated */ + if ((wParam & 0xFFFF) !is 0) { + OS.SHSipPreference (handle, psai.fSipUp is 0 ? OS.SIP_DOWN : OS.SIP_UP); + } + } + + /* + * Bug in Windows XP. When a Shell is deactivated, the + * IME composition window does not go away. This causes + * repaint issues. The fix is to close the IME to cause + * the composition string to be committed. + * + * Note. The IME needs to be reopened in order to preserve + * the input method status. + */ + if (OS.WIN32_VERSION >= OS.VERSION (5, 1)) { + if ((wParam & 0xFFFF) is 0 && OS.IsDBLocale && hIMC !is 0) { + if (OS.ImmGetOpenStatus(hIMC)) { + OS.ImmSetOpenStatus (hIMC, false); + OS.ImmSetOpenStatus (hIMC, true); + } + } + } + + /* Process WM_ACTIVATE */ + LRESULT result = super.WM_ACTIVATE (wParam, lParam); + if ((wParam & 0xFFFF) is 0) { + if (lParam is 0 || (lParam !is toolTipHandle && lParam !is balloonTipHandle)) { + ToolTip tip = getCurrentToolTip (); + if (tip !is null) tip.setVisible (false); + } + } + return parent !is null ? LRESULT.ZERO : result; +} + +LRESULT WM_COMMAND (int wParam, int lParam) { + if (OS.IsPPC) { + /* + * Note in WinCE PPC: Close the Shell when the "Done Button" has + * been pressed. lParam is either 0 (PocketPC 2002) or the handle + * to the Shell (PocketPC). + */ + int loWord = wParam & 0xFFFF; + if (loWord is OS.IDOK && (lParam is 0 || lParam is handle)) { + OS.PostMessage (handle, OS.WM_CLOSE, 0, 0); + return LRESULT.ZERO; + } + } + /* + * Feature in Windows. On PPC, the menu is not actually an HMENU. + * By observation, it is a tool bar that is configured to look like + * a menu. Therefore, when the PPC menu sends WM_COMMAND messages, + * lParam is not zero because the WM_COMMAND was not sent from a menu. + * Sub menu item events originate from the menu bar. Top menu items + * events originate from a tool bar. The fix is to detect the source + * of the WM_COMMAND and set lParam to zero to pretend that the message + * came from a real Windows menu, not a tool bar. + */ + if (OS.IsPPC || OS.IsSP) { + if (menuBar !is null) { + int hwndCB = menuBar.hwndCB; + if (lParam !is 0 && hwndCB !is 0) { + if (lParam is hwndCB) { + return super.WM_COMMAND (wParam, 0); + } else { + int hwndChild = OS.GetWindow (hwndCB, OS.GW_CHILD); + if (lParam is hwndChild) return super.WM_COMMAND (wParam, 0); + } + } + } + } + return super.WM_COMMAND (wParam, lParam); +} + +LRESULT WM_DESTROY (int wParam, int lParam) { + LRESULT result = super.WM_DESTROY (wParam, lParam); + /* + * When the shell is a WS_CHILD window of a non-DWT + * window, the destroy code does not get called because + * the non-DWT window does not call dispose (). Instead, + * the destroy code is called here in WM_DESTROY. + */ + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.WS_CHILD) !is 0) { + releaseParent (); + release (false); + } + return result; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. When a shell is resized by dragging + * the resize handles, Windows temporarily fills in black + * rectangles where the new contents of the shell should + * draw. The fix is to always draw the background of shells. + * + * NOTE: This only happens on Vista. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + drawBackground (wParam); + return LRESULT.ONE; + } + return result; +} + +LRESULT WM_ENTERIDLE (int wParam, int lParam) { + LRESULT result = super.WM_ENTERIDLE (wParam, lParam); + if (result !is null) return result; + if (OS.IsWinCE && display.runMessages) { + if (display.runAsyncMessages (true)) display.wakeThread (); + } + return result; +} + +LRESULT WM_GETMINMAXINFO (int wParam, int lParam) { + LRESULT result = super.WM_GETMINMAXINFO (wParam, lParam); + if (result !is null) return result; + if (minWidth !is DWT.DEFAULT || minHeight !is DWT.DEFAULT) { + MINMAXINFO info = new MINMAXINFO (); + OS.MoveMemory (info, lParam, MINMAXINFO.sizeof); + if (minWidth !is DWT.DEFAULT) info.ptMinTrackSize_x = minWidth; + if (minHeight !is DWT.DEFAULT) info.ptMinTrackSize_y = minHeight; + OS.MoveMemory (lParam, info, MINMAXINFO.sizeof); + return LRESULT.ZERO; + } + return result; +} + +LRESULT WM_MOUSEACTIVATE (int wParam, int lParam) { + LRESULT result = super.WM_MOUSEACTIVATE (wParam, lParam); + if (result !is null) return result; + + /* + * Check for WM_MOUSEACTIVATE when an MDI shell is active + * and stop the normal shell activation but allow the mouse + * down to be delivered. + */ + int hittest = (short) (lParam & 0xFFFF); + switch (hittest) { + case OS.HTERROR: + case OS.HTTRANSPARENT: + case OS.HTNOWHERE: + break; + default: { + Control control = display._getFocusControl (); + if (control !is null) { + Decorations decorations = control.menuShell (); + if (decorations.getShell () is this && decorations !is this) { + display.ignoreRestoreFocus = true; + display.lastHittest = hittest; + display.lastHittestControl = null; + if (hittest is OS.HTMENU || hittest is OS.HTSYSMENU) { + display.lastHittestControl = control; + return null; + } + if (OS.IsWin95 && hittest is OS.HTCAPTION) { + display.lastHittestControl = control; + } + return new LRESULT (OS.MA_NOACTIVATE); + } + } + } + } + if (hittest is OS.HTMENU) return null; + + /* + * Get the current location of the cursor, + * not the location of the cursor when the + * WM_MOUSEACTIVATE was generated. This is + * strictly incorrect but is necessary in + * order to support Activate and Deactivate + * events for embedded widgets that have + * their own event loop. In that case, the + * cursor location reported by GetMessagePos() + * is the one for our event loop, not the + * embedded widget's event loop. + */ + POINT pt = new POINT (); + if (!OS.GetCursorPos (pt)) { + int pos = OS.GetMessagePos (); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + } + int hwnd = OS.WindowFromPoint (pt); + if (hwnd is 0) return null; + Control control = display.findControl (hwnd); + + /* + * When a shell is created with DWT.ON_TOP and DWT.NO_FOCUS, + * do not activate the shell when the user clicks on the + * the client area or on the border or a control within the + * shell that does not take focus. + */ + if (control !is null && (control.state & CANVAS) !is 0) { + if ((control.style & DWT.NO_FOCUS) !is 0) { + int bits = DWT.ON_TOP | DWT.NO_FOCUS; + if ((style & bits) is bits) { + if (hittest is OS.HTBORDER || hittest is OS.HTCLIENT) { + return new LRESULT (OS.MA_NOACTIVATE); + } + } + } + } + + setActiveControl (control); + return null; +} + +LRESULT WM_MOVE (int wParam, int lParam) { + LRESULT result = super.WM_MOVE (wParam, lParam); + if (result !is null) return result; + ToolTip tip = getCurrentToolTip (); + if (tip !is null) tip.setVisible (false); + return result; +} + +LRESULT WM_NCACTIVATE (int wParam, int lParam) { + Display display = this.display; + LRESULT result = super.WM_NCACTIVATE (wParam, lParam); + if (display.isXMouseActive ()) { + if (lockToolTipControl !is null) { + if (OS.GetAsyncKeyState (OS.VK_LBUTTON) < 0) return result; + if (OS.GetAsyncKeyState (OS.VK_MBUTTON) < 0) return result; + if (OS.GetAsyncKeyState (OS.VK_RBUTTON) < 0) return result; + if (OS.GetAsyncKeyState (OS.VK_XBUTTON1) < 0) return result; + if (OS.GetAsyncKeyState (OS.VK_XBUTTON2) < 0) return result; + return LRESULT.ZERO; + } + } + return result; +} + +LRESULT WM_NCHITTEST (int wParam, int lParam) { + if (!OS.IsWindowEnabled (handle)) return null; + if (!isEnabled () || !isActive ()) { + if (!Display.TrimEnabled) return new LRESULT (OS.HTNOWHERE); + int hittest = callWindowProc (handle, OS.WM_NCHITTEST, wParam, lParam); + if (hittest is OS.HTCLIENT || hittest is OS.HTMENU) hittest = OS.HTBORDER; + return new LRESULT (hittest); + } + if (menuBar !is null && !menuBar.getEnabled ()) { + int hittest = callWindowProc (handle, OS.WM_NCHITTEST, wParam, lParam); + if (hittest is OS.HTMENU) hittest = OS.HTBORDER; + return new LRESULT (hittest); + } + return null; +} + +LRESULT WM_NCLBUTTONDOWN (int wParam, int lParam) { + LRESULT result = super.WM_NCLBUTTONDOWN (wParam, lParam); + if (result !is null) return result; + /* + * When the normal activation was interrupted in WM_MOUSEACTIVATE + * because the active shell was an MDI shell, set the active window + * to the top level shell but lock the active window and stop focus + * changes. This allows the user to interact the top level shell + * in the normal manner. + */ + if (!display.ignoreRestoreFocus) return result; + Display display = this.display; + int hwndActive = 0; + bool fixActive = OS.IsWin95 && display.lastHittest is OS.HTCAPTION; + if (fixActive) hwndActive = OS.SetActiveWindow (handle); + display.lockActiveWindow = true; + int code = callWindowProc (handle, OS.WM_NCLBUTTONDOWN, wParam, lParam); + display.lockActiveWindow = false; + if (fixActive) OS.SetActiveWindow (hwndActive); + Control focusControl = display.lastHittestControl; + if (focusControl !is null && !focusControl.isDisposed ()) { + focusControl.setFocus (); + } + display.lastHittestControl = null; + display.ignoreRestoreFocus = false; + return new LRESULT (code); +} + +LRESULT WM_PALETTECHANGED (int wParam, int lParam) { + if (wParam !is handle) { + int hPalette = display.hPalette; + if (hPalette !is 0) return selectPalette (hPalette); + } + return super.WM_PALETTECHANGED (wParam, lParam); +} + +LRESULT WM_QUERYNEWPALETTE (int wParam, int lParam) { + int hPalette = display.hPalette; + if (hPalette !is 0) return selectPalette (hPalette); + return super.WM_QUERYNEWPALETTE (wParam, lParam); +} + +LRESULT WM_SETCURSOR (int wParam, int lParam) { + /* + * Feature in Windows. When the shell is disabled + * by a Windows standard dialog (like a MessageBox + * or FileDialog), clicking in the shell does not + * bring the shell or the dialog to the front. The + * fix is to detect this case and bring the shell + * forward. + */ + int msg = (short) (lParam >> 16); + if (msg is OS.WM_LBUTTONDOWN) { + if (!Display.TrimEnabled) { + Shell modalShell = display.getModalShell (); + if (modalShell !is null && !isActive ()) { + int hwndModal = modalShell.handle; + if (OS.IsWindowEnabled (hwndModal)) { + OS.SetActiveWindow (hwndModal); + } + } + } + if (!OS.IsWindowEnabled (handle)) { + if (!OS.IsWinCE) { + int hwndPopup = OS.GetLastActivePopup (handle); + if (hwndPopup !is 0 && hwndPopup !is handle) { + if (display.getControl (hwndPopup) is null) { + if (OS.IsWindowEnabled (hwndPopup)) { + OS.SetActiveWindow (hwndPopup); + } + } + } + } + } + } + /* + * When the shell that contains a cursor is disabled, + * WM_SETCURSOR is called with HTERROR. Normally, + * when a control is disabled, the parent will get + * mouse and cursor events. In the case of a disabled + * shell, there is no enabled parent. In order to + * show the cursor when a shell is disabled, it is + * necessary to override WM_SETCURSOR when called + * with HTERROR to set the cursor but only when the + * mouse is in the client area of the shell. + */ + int hitTest = (short) (lParam & 0xFFFF); + if (hitTest is OS.HTERROR) { + if (!getEnabled ()) { + Control control = display.getControl (wParam); + if (control is this && cursor !is null) { + POINT pt = new POINT (); + int pos = OS.GetMessagePos (); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (handle, pt); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + if (OS.PtInRect (rect, pt)) { + OS.SetCursor (cursor.handle); + switch (msg) { + case OS.WM_LBUTTONDOWN: + case OS.WM_RBUTTONDOWN: + case OS.WM_MBUTTONDOWN: + case OS.WM_XBUTTONDOWN: + OS.MessageBeep (OS.MB_OK); + } + return LRESULT.ONE; + } + } + } + } + return super.WM_SETCURSOR (wParam, lParam); +} + +LRESULT WM_SETTINGCHANGE (int wParam, int lParam) { + LRESULT result = super.WM_SETTINGCHANGE (wParam, lParam); + if (result !is null) return result; + if (OS.IsPPC) { + if (wParam is OS.SPI_SETSIPINFO) { + /* + * The SIP is in a new state. Cache its new value. + * Resize the Shell if it has the style DWT.RESIZE. + * Note that SHHandleWMSettingChange resizes the + * Shell and also updates the cached state. + */ + if ((style & DWT.RESIZE) !is 0) { + OS.SHHandleWMSettingChange (handle, wParam, lParam, psai); + return LRESULT.ZERO; + } else { + SIPINFO pSipInfo = new SIPINFO (); + pSipInfo.cbSize = SIPINFO.sizeof; + OS.SipGetInfo (pSipInfo); + psai.fSipUp = pSipInfo.fdwFlags & OS.SIPF_ON; + } + } + } + return result; +} + +LRESULT WM_SHOWWINDOW (int wParam, int lParam) { + LRESULT result = super.WM_SHOWWINDOW (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. If the shell is hidden while the parent + * is iconic, Windows shows the shell when the parent is + * deiconified. This does not happen if the shell is hidden + * while the parent is not an icon. The fix is to track + * visible state for the shell and refuse to show the shell + * when the parent is shown. + */ + if (lParam is OS.SW_PARENTOPENING) { + Control control = this; + while (control !is null) { + Shell shell = control.getShell (); + if (!shell.showWithParent) return LRESULT.ZERO; + control = control.parent; + } + } + return result; +} + +LRESULT WM_SYSCOMMAND (int wParam, int lParam) { + LRESULT result = super.WM_SYSCOMMAND (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. When the last visible window in + * a process minimized, Windows swaps out the memory for + * the process. The assumption is that the user can no + * longer interact with the window, so the memory can be + * released to other applications. However, for programs + * that use a lot of memory, swapping the memory back in + * can take a long time, sometimes minutes. The fix is + * to intercept WM_SYSCOMMAND looking for SC_MINIMIZE + * and use ShowWindow() with SW_SHOWMINIMIZED to minimize + * the window, rather than running the default window proc. + * + * NOTE: The default window proc activates the next + * top-level window in the Z-order while ShowWindow() + * with SW_SHOWMINIMIZED does not. There is no fix for + * this at this time. + */ + if (OS.IsWinNT) { + int cmd = wParam & 0xFFF0; + switch (cmd) { + case OS.SC_MINIMIZE: + long memory = Runtime.getRuntime ().totalMemory (); + if (memory >= 32 * 1024 * 1024) { + OS.ShowWindow (handle, OS.SW_SHOWMINIMIZED); + return LRESULT.ZERO; + } + } + } + return result; +} + +LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) { + LRESULT result = super.WM_WINDOWPOSCHANGING (wParam,lParam); + if (result !is null) return result; + WINDOWPOS lpwp = new WINDOWPOS (); + OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof); + if ((lpwp.flags & OS.SWP_NOSIZE) is 0) { + lpwp.cx = Math.max (lpwp.cx, minWidth); + int trim = DWT.TITLE | DWT.CLOSE | DWT.MIN | DWT.MAX; + if ((style & DWT.NO_TRIM) is 0 && (style & trim) !is 0) { + lpwp.cx = Math.max (lpwp.cx, OS.GetSystemMetrics (OS.SM_CXMINTRACK)); + } + lpwp.cy = Math.max (lpwp.cy, minHeight); + if ((style & DWT.NO_TRIM) is 0 && (style & trim) !is 0) { + if ((style & DWT.RESIZE) !is 0) { + lpwp.cy = Math.max (lpwp.cy, OS.GetSystemMetrics (OS.SM_CYMINTRACK)); + } else { + RECT rect = new RECT (); + int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE); + int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + OS.AdjustWindowRectEx (rect, bits1, false, bits2); + lpwp.cy = Math.max (lpwp.cy, rect.bottom - rect.top); + } + } + OS.MoveMemory (lParam, lpwp, WINDOWPOS.sizeof); + } + return result; +} +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Slider.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,796 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Slider; + +import dwt.widgets.Control; +import dwt.widgets.Composite; +class Slider : Control { + this (Composite parent, int style); +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Point; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.SCROLLINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class are selectable user interface + * objects that represent a range of positive, numeric values. + * <p> + * At any given moment, a given slider will have a + * single 'selection' that is considered to be its + * value, which is constrained to be within the range of + * values the slider represents (that is, between its + * <em>minimum</em> and <em>maximum</em> values). + * </p><p> + * Typically, sliders will be made up of five areas: + * <ol> + * <li>an arrow button for decrementing the value</li> + * <li>a page decrement area for decrementing the value by a larger amount</li> + * <li>a <em>thumb</em> for modifying the value by mouse dragging</li> + * <li>a page increment area for incrementing the value by a larger amount</li> + * <li>an arrow button for incrementing the value</li> + * </ol> + * Based on their style, sliders are either <code>HORIZONTAL</code> + * (which have a left facing button for decrementing the value and a + * right facing button for incrementing it) or <code>VERTICAL</code> + * (which have an upward facing button for decrementing the value + * and a downward facing buttons for incrementing it). + * </p><p> + * On some platforms, the size of the slider's thumb can be + * varied relative to the magnitude of the range of values it + * represents (that is, relative to the difference between its + * maximum and minimum values). Typically, this is used to + * indicate some proportional value such as the ratio of the + * visible area of a document to the total amount of space that + * it would take to display it. DWT supports setting the thumb + * size even if the underlying platform does not, but in this + * case the appearance of the slider will not change. + * </p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>HORIZONTAL, VERTICAL</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @see ScrollBar + */ +public class Slider extends Control { + int increment, pageIncrement; + bool ignoreFocus; + static final int ScrollBarProc; + static final TCHAR ScrollBarClass = new TCHAR (0, "SCROLLBAR", true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, ScrollBarClass, lpWndClass); + ScrollBarProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#HORIZONTAL + * @see DWT#VERTICAL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Slider (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the user changes the receiver's value, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called, the event object detail field contains one of the following values: + * <code>DWT.NONE</code> - for the end of a drag. + * <code>DWT.DRAG</code>. + * <code>DWT.HOME</code>. + * <code>DWT.END</code>. + * <code>DWT.ARROW_DOWN</code>. + * <code>DWT.ARROW_UP</code>. + * <code>DWT.PAGE_DOWN</code>. + * <code>DWT.PAGE_UP</code>. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the user changes the receiver's value + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener(listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + /* + * Feature in Windows. Windows runs a modal message + * loop when the user drags a scroll bar. This means + * that mouse down events won't get delivered until + * after the loop finishes. The fix is to run any + * deferred messages, including mouse down messages + * before calling the scroll bar window proc. + */ + switch (msg) { + case OS.WM_LBUTTONDOWN: + case OS.WM_LBUTTONDBLCLK: + display.runDeferredEvents (); + } + return OS.CallWindowProc (ScrollBarProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + return checkBits (style, DWT.HORIZONTAL, DWT.VERTICAL, 0, 0, 0, 0); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int border = getBorderWidth (); + int width = border * 2, height = border * 2; + if ((style & DWT.HORIZONTAL) !is 0) { + width += OS.GetSystemMetrics (OS.SM_CXHSCROLL) * 10; + height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } else { + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + height += OS.GetSystemMetrics (OS.SM_CYVSCROLL) * 10; + } + if (wHint !is DWT.DEFAULT) width = wHint + (border * 2); + if (hHint !is DWT.DEFAULT) height = hHint + (border * 2); + return new Point (width, height); +} + +void createWidget () { + super.createWidget (); + increment = 1; + pageIncrement = 10; + /* + * Set the initial values of the maximum + * to 100 and the thumb to 10. Note that + * info.nPage needs to be 11 in order to + * get a thumb that is 10. + */ + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_ALL; + info.nMax = 100; + info.nPage = 11; + OS.SetScrollInfo (handle, OS.SB_CTL, info, true); +} + +int defaultBackground () { + return OS.GetSysColor (OS.COLOR_SCROLLBAR); +} + +int defaultForeground () { + return OS.GetSysColor (OS.COLOR_BTNFACE); +} + +void enableWidget (bool enabled) { + super.enableWidget (enabled); + if (!OS.IsWinCE) { + int flags = enabled ? OS.ESB_ENABLE_BOTH : OS.ESB_DISABLE_BOTH; + OS.EnableScrollBar (handle, OS.SB_CTL, flags); + } + if (enabled) { + state &= ~DISABLED; + } else { + state |= DISABLED; + } +} + +public bool getEnabled () { + checkWidget (); + return (state & DISABLED) is 0; +} + +/** + * Returns the amount that the receiver's value will be + * modified by when the up/down (or right/left) arrows + * are pressed. + * + * @return the increment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getIncrement () { + checkWidget (); + return increment; +} + +/** + * Returns the maximum value which the receiver will allow. + * + * @return the maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMaximum () { + checkWidget (); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE; + OS.GetScrollInfo (handle, OS.SB_CTL, info); + return info.nMax; +} + +/** + * Returns the minimum value which the receiver will allow. + * + * @return the minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMinimum () { + checkWidget (); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE; + OS.GetScrollInfo (handle, OS.SB_CTL, info); + return info.nMin; +} + +/** + * Returns the amount that the receiver's value will be + * modified by when the page increment/decrement areas + * are selected. + * + * @return the page increment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getPageIncrement () { + checkWidget (); + return pageIncrement; +} + +/** + * Returns the 'selection', which is the receiver's value. + * + * @return the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelection () { + checkWidget (); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + OS.GetScrollInfo (handle, OS.SB_CTL, info); + return info.nPos; +} + +/** + * Returns the size of the receiver's thumb relative to the + * difference between its maximum and minimum values. + * + * @return the thumb value + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getThumb () { + checkWidget (); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_PAGE; + OS.GetScrollInfo (handle, OS.SB_CTL, info); + if (info.nPage !is 0) --info.nPage; + return info.nPage; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the user changes the receiver's value. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +void setBounds (int x, int y, int width, int height, int flags) { + super.setBounds (x, y, width, height, flags); + /* + * Bug in Windows. If the scroll bar is resized when it has focus, + * the flashing cursor that is used to show that the scroll bar has + * focus is not moved. The fix is to send a fake WM_SETFOCUS to + * get the scroll bar to recompute the size of the flashing cursor. + */ + if (OS.GetFocus () is handle) { + ignoreFocus = true; + OS.SendMessage (handle, OS.WM_SETFOCUS, 0, 0); + ignoreFocus = false; + } +} + +/** + * Sets the amount that the receiver's value will be + * modified by when the up/down (or right/left) arrows + * are pressed to the argument, which must be at least + * one. + * + * @param value the new increment (must be greater than zero) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setIncrement (int value) { + checkWidget (); + if (value < 1) return; + increment = value; +} + +/** + * Sets the maximum. If this value is negative or less than or + * equal to the minimum, the value is ignored. If necessary, first + * the thumb and then the selection are adjusted to fit within the + * new range. + * + * @param value the new maximum, which must be greater than the current minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMaximum (int value) { + checkWidget (); + if (value < 0) return; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL; + OS.GetScrollInfo (handle, OS.SB_CTL, info); + if (value - info.nMin - info.nPage < 1) return; + info.nMax = value; + SetScrollInfo (handle, OS.SB_CTL, info, true); +} + +/** + * Sets the minimum value. If this value is negative or greater + * than or equal to the maximum, the value is ignored. If necessary, + * first the thumb and then the selection are adjusted to fit within + * the new range. + * + * @param value the new minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMinimum (int value) { + checkWidget (); + if (value < 0) return; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL; + OS.GetScrollInfo (handle, OS.SB_CTL, info); + if (info.nMax - value - info.nPage < 1) return; + info.nMin = value; + SetScrollInfo (handle, OS.SB_CTL, info, true); +} + +/** + * Sets the amount that the receiver's value will be + * modified by when the page increment/decrement areas + * are selected to the argument, which must be at least + * one. + * + * @param value the page increment (must be greater than zero) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setPageIncrement (int value) { + checkWidget (); + if (value < 1) return; + pageIncrement = value; +} + +bool SetScrollInfo (int hwnd, int flags, SCROLLINFO info, bool fRedraw) { + /* + * Feature in Windows. Using SIF_DISABLENOSCROLL, + * SetScrollInfo () can change enabled and disabled + * state of the scroll bar causing a scroll bar that + * was disabled by the application to become enabled. + * The fix is to disable the scroll bar (again) when + * the application has disabled the scroll bar. + */ + if ((state & DISABLED) !is 0) fRedraw = false; + bool result = OS.SetScrollInfo (hwnd, flags, info, fRedraw); + if ((state & DISABLED) !is 0) { + OS.EnableWindow (handle, false); + if (!OS.IsWinCE) { + OS.EnableScrollBar (handle, OS.SB_CTL, OS.ESB_DISABLE_BOTH); + } + } + + /* + * Bug in Windows. If the thumb is resized when it has focus, + * the flashing cursor that is used to show that the scroll bar + * has focus is not moved. The fix is to send a fake WM_SETFOCUS + * to get the scroll bar to recompute the size of the flashing + * cursor. + */ + if (OS.GetFocus () is handle) { + ignoreFocus = true; + OS.SendMessage (handle, OS.WM_SETFOCUS, 0, 0); + ignoreFocus = false; + } + return result; +} + +/** + * Sets the 'selection', which is the receiver's + * value, to the argument which must be greater than or equal + * to zero. + * + * @param value the new selection (must be zero or greater) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (int value) { + checkWidget (); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + info.nPos = value; + SetScrollInfo (handle, OS.SB_CTL, info, true); +} + +/** + * Sets the size of the receiver's thumb relative to the + * difference between its maximum and minimum values. This new + * value will be ignored if it is less than one, and will be + * clamped if it exceeds the receiver's current range. + * + * @param value the new thumb value, which must be at least one and not + * larger than the size of the current range + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setThumb (int value) { + checkWidget (); + if (value < 1) return; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_PAGE | OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL; + OS.GetScrollInfo (handle, OS.SB_CTL, info); + info.nPage = value; + if (info.nPage !is 0) info.nPage++; + SetScrollInfo (handle, OS.SB_CTL, info, true); +} + +/** + * Sets the receiver's selection, minimum value, maximum + * value, thumb, increment and page increment all at once. + * <p> + * Note: This is similar to setting the values individually + * using the appropriate methods, but may be implemented in a + * more efficient fashion on some platforms. + * </p> + * + * @param selection the new selection value + * @param minimum the new minimum value + * @param maximum the new maximum value + * @param thumb the new thumb value + * @param increment the new increment value + * @param pageIncrement the new pageIncrement value + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setValues (int selection, int minimum, int maximum, int thumb, int increment, int pageIncrement) { + checkWidget (); + if (minimum < 0) return; + if (maximum < 0) return; + if (thumb < 1) return; + if (increment < 1) return; + if (pageIncrement < 1) return; + this.increment = increment; + this.pageIncrement = pageIncrement; + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS | OS.SIF_PAGE | OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL; + info.nPos = selection; + info.nMin = minimum; + info.nMax = maximum; + info.nPage = thumb; + if (info.nPage !is 0) info.nPage++; + SetScrollInfo (handle, OS.SB_CTL, info, true); +} + +int widgetExtStyle () { + /* + * Bug in Windows. If a scroll bar control is given a border, + * dragging the scroll bar thumb eats away parts of the border + * while the thumb is dragged. The fix is to clear border for + * all scroll bars. + */ + int bits = super.widgetExtStyle (); + if ((style & DWT.BORDER) !is 0) bits &= ~OS.WS_EX_CLIENTEDGE; + return bits; +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.WS_TABSTOP; + /* + * Bug in Windows. If a scroll bar control is given a border, + * dragging the scroll bar thumb eats away parts of the border + * while the thumb is dragged. The fix is to clear WS_BORDER. + */ + if ((style & DWT.BORDER) !is 0) bits &= ~OS.WS_BORDER; + if ((style & DWT.HORIZONTAL) !is 0) return bits | OS.SBS_HORZ; + return bits | OS.SBS_VERT; +} + +TCHAR windowClass () { + return ScrollBarClass; +} + +int windowProc () { + return ScrollBarProc; +} + +LRESULT WM_KEYDOWN (int wParam, int lParam) { + LRESULT result = super.WM_KEYDOWN (wParam, lParam); + if (result !is null) return result; + if ((style & DWT.VERTICAL) !is 0) return result; + /* + * Bug in Windows. When a horizontal scroll bar is mirrored, + * the native control does not correctly swap the arrow keys. + * The fix is to swap them before calling the scroll bar window + * proc. + * + * NOTE: This fix is not ideal. It breaks when the bug is fixed + * in the operating system. + */ + if ((style & DWT.MIRRORED) !is 0) { + switch (wParam) { + case OS.VK_LEFT: + case OS.VK_RIGHT: { + int key = wParam is OS.VK_LEFT ? OS.VK_RIGHT : OS.VK_LEFT; + int code = callWindowProc (handle, OS.WM_KEYDOWN, key, lParam); + return new LRESULT (code); + } + } + } + return result; +} + +LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) { + /* + * Feature in Windows. Windows uses the WS_TABSTOP + * style for the scroll bar to decide that focus + * should be set during WM_LBUTTONDBLCLK. This is + * not the desired behavior. The fix is to clear + * and restore WS_TABSTOP so that Windows will not + * assign focus. + */ + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE); + int newBits = oldBits & ~OS.WS_TABSTOP; + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + LRESULT result = super.WM_LBUTTONDBLCLK (wParam, lParam); + if (isDisposed ()) return LRESULT.ZERO; + OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits); + if (result is LRESULT.ZERO) return result; + + /* + * Feature in Windows. Windows runs a modal message loop + * when the user drags a scroll bar that terminates when + * it sees an WM_LBUTTONUP. Unfortunately the WM_LBUTTONUP + * is consumed. The fix is to send a fake mouse up and + * release the automatic capture. + */ + if (!OS.IsWinCE) { + if (OS.GetCapture () is handle) OS.ReleaseCapture (); + if (!sendMouseEvent (DWT.MouseUp, 1, handle, OS.WM_LBUTTONUP, wParam, lParam)) { + return LRESULT.ZERO; + } + } + return result; +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + /* + * Feature in Windows. Windows uses the WS_TABSTOP + * style for the scroll bar to decide that focus + * should be set during WM_LBUTTONDOWN. This is + * not the desired behavior. The fix is to clear + * and restore WS_TABSTOP so that Windows will not + * assign focus. + */ + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE); + int newBits = oldBits & ~OS.WS_TABSTOP; + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); + if (isDisposed ()) return LRESULT.ZERO; + OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits); + if (result is LRESULT.ZERO) return result; + + /* + * Feature in Windows. Windows runs a modal message loop + * when the user drags a scroll bar that terminates when + * it sees an WM_LBUTTONUP. Unfortunately the WM_LBUTTONUP + * is consumed. The fix is to send a fake mouse up and + * release the automatic capture. + */ + if (!OS.IsWinCE) { + if (OS.GetCapture () is handle) OS.ReleaseCapture (); + if (!sendMouseEvent (DWT.MouseUp, 1, handle, OS.WM_LBUTTONUP, wParam, lParam)) { + return LRESULT.ONE; + } + } + return result; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + if (ignoreFocus) return null; + return super.WM_SETFOCUS (wParam, lParam); +} + +LRESULT wmScrollChild (int wParam, int lParam) { + + /* Do nothing when scrolling is ending */ + int code = wParam & 0xFFFF; + if (code is OS.SB_ENDSCROLL) return null; + + /* Move the thumb */ + Event event = new Event (); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_TRACKPOS | OS.SIF_POS | OS.SIF_RANGE; + OS.GetScrollInfo (handle, OS.SB_CTL, info); + info.fMask = OS.SIF_POS; + switch (code) { + case OS.SB_THUMBPOSITION: + event.detail = DWT.NONE; + info.nPos = info.nTrackPos; + break; + case OS.SB_THUMBTRACK: + event.detail = DWT.DRAG; + info.nPos = info.nTrackPos; + break; + case OS.SB_TOP: + event.detail = DWT.HOME; + info.nPos = info.nMin; + break; + case OS.SB_BOTTOM: + event.detail = DWT.END; + info.nPos = info.nMax; + break; + case OS.SB_LINEDOWN: + event.detail = DWT.ARROW_DOWN; + info.nPos += increment; + break; + case OS.SB_LINEUP: + event.detail = DWT.ARROW_UP; + info.nPos = Math.max (info.nMin, info.nPos - increment); + break; + case OS.SB_PAGEDOWN: + event.detail = DWT.PAGE_DOWN; + info.nPos += pageIncrement; + break; + case OS.SB_PAGEUP: + event.detail = DWT.PAGE_UP; + info.nPos = Math.max (info.nMin, info.nPos - pageIncrement); + break; + } + OS.SetScrollInfo (handle, OS.SB_CTL, info, true); + + /* + * Feature in Windows. Windows runs a modal message + * loop when the user drags a scroll bar. This means + * that selection event must be sent because WM_HSCROLL + * and WM_VSCROLL are sent from the modal message loop + * so that they are delivered during inside the loop. + */ + sendEvent (DWT.Selection, event); + // the widget could be destroyed at this point + return null; +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Spinner.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1366 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Spinner; + +import dwt.widgets.Composite; +class Spinner : Composite { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ModifyListener; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.events.VerifyListener; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.NMUPDOWN; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; +import dwt.internal.win32.UDACCEL; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class are selectable user interface + * objects that allow the user to enter and modify numeric + * values. + * <p> + * Note that although this class is a subclass of <code>Composite</code>, + * it does not make sense to add children to it, or set a layout on it. + * </p><p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>READ_ONLY, WRAP</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection, Modify, Verify</dd> + * </dl> + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @since 3.1 + */ +public class Spinner extends Composite { + int hwndText, hwndUpDown; + bool ignoreModify; + int pageIncrement, digits; + static final int EditProc; + static final TCHAR EditClass = new TCHAR (0, "EDIT", true); + static final int UpDownProc; + static final TCHAR UpDownClass = new TCHAR (0, OS.UPDOWN_CLASS, true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, EditClass, lpWndClass); + EditProc = lpWndClass.lpfnWndProc; + OS.GetClassInfo (0, UpDownClass, lpWndClass); + UpDownProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#READ_ONLY + * @see DWT#WRAP + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Spinner (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + if (hwnd is hwndText) { + return OS.CallWindowProc (EditProc, hwnd, msg, wParam, lParam); + } + if (hwnd is hwndUpDown) { + return OS.CallWindowProc (UpDownProc, hwnd, msg, wParam, lParam); + } + return OS.DefWindowProc (handle, msg, wParam, lParam); +} + +static int checkStyle (int style) { + /* + * Even though it is legal to create this widget + * with scroll bars, they serve no useful purpose + * because they do not automatically scroll the + * widget's client area. The fix is to clear + * the DWT style. + */ + return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); +} + +bool checkHandle (int hwnd) { + return hwnd is handle || hwnd is hwndText || hwnd is hwndUpDown; +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +void createHandle () { + super.createHandle (); + state &= ~(CANVAS | THEME_BACKGROUND); + int hInstance = OS.GetModuleHandle (null); + int textExStyle = (style & DWT.BORDER) !is 0 ? OS.WS_EX_CLIENTEDGE : 0; + int textStyle = OS.WS_CHILD | OS.WS_VISIBLE | OS.ES_AUTOHSCROLL | OS.WS_CLIPSIBLINGS; + if ((style & DWT.READ_ONLY) !is 0) textStyle |= OS.ES_READONLY; + if (OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + if ((style & DWT.RIGHT_TO_LEFT) !is 0) textExStyle |= OS.WS_EX_LAYOUTRTL; + } + hwndText = OS.CreateWindowEx ( + textExStyle, + EditClass, + null, + textStyle, + 0, 0, 0, 0, + handle, + 0, + hInstance, + null); + if (hwndText is 0) error (DWT.ERROR_NO_HANDLES); + OS.SetWindowLong (hwndText, OS.GWL_ID, hwndText); + int upDownStyle = OS.WS_CHILD | OS.WS_VISIBLE | OS.UDS_AUTOBUDDY; + if ((style & DWT.WRAP) !is 0) upDownStyle |= OS.UDS_WRAP; + if ((style & DWT.BORDER) !is 0) { + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + upDownStyle |= OS.UDS_ALIGNLEFT; + } else { + upDownStyle |= OS.UDS_ALIGNRIGHT; + } + } + hwndUpDown = OS.CreateWindowEx ( + 0, + UpDownClass, + null, + upDownStyle, + 0, 0, 0, 0, + handle, + 0, + hInstance, + null); + if (hwndUpDown is 0) error (DWT.ERROR_NO_HANDLES); + int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; + SetWindowPos (hwndText, hwndUpDown, 0, 0, 0, 0, flags); + OS.SetWindowLong (hwndUpDown, OS.GWL_ID, hwndUpDown); + if (OS.IsDBLocale) { + int hIMC = OS.ImmGetContext (handle); + OS.ImmAssociateContext (hwndText, hIMC); + OS.ImmAssociateContext (hwndUpDown, hIMC); + OS.ImmReleaseContext (handle, hIMC); + } + OS.SendMessage (hwndUpDown, OS.UDM_SETRANGE32, 0, 100); + OS.SendMessage (hwndUpDown, OS.IsWinCE ? OS.UDM_SETPOS : OS.UDM_SETPOS32, 0, 0); + pageIncrement = 10; + digits = 0; + TCHAR buffer = new TCHAR (getCodePage (), "0", true); + OS.SetWindowText (hwndText, buffer); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver's text is modified, by sending + * it one of the messages defined in the <code>ModifyListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ModifyListener + * @see #removeModifyListener + */ +public void addModifyListener (ModifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Modify, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is not called for texts. + * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed in a single-line text. + * </p> + * + * @param listener the listener which should be notified when the control is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver's text is verified, by sending + * it one of the messages defined in the <code>VerifyListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see VerifyListener + * @see #removeVerifyListener + */ +void addVerifyListener (VerifyListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Verify, typedListener); +} + +int borderHandle () { + return hwndText; +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0; + if (wHint is DWT.DEFAULT || hHint is DWT.DEFAULT) { + int newFont, oldFont = 0; + int hDC = OS.GetDC (hwndText); + newFont = OS.SendMessage (hwndText, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, tm); + height = tm.tmHeight; + RECT rect = new RECT (); + int [] max = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, null, max); + String string = String.valueOf (max [0]); + if (digits > 0) { + StringBuffer buffer = new StringBuffer (); + buffer.append (string); + buffer.append (getDecimalSeparator ()); + int count = digits - string.length (); + while (count >= 0) { + buffer.append ("0"); + count--; + } + string = buffer.toString (); + } + TCHAR buffer = new TCHAR (getCodePage (), string, false); + int flags = OS.DT_CALCRECT | OS.DT_EDITCONTROL | OS.DT_NOPREFIX; + OS.DrawText (hDC, buffer, buffer.length (), rect, flags); + width = rect.right - rect.left; + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (hwndText, hDC); + } + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + Rectangle trim = computeTrim (0, 0, width, height); + if (hHint is DWT.DEFAULT) { + int upDownHeight = OS.GetSystemMetrics (OS.SM_CYVSCROLL) + 2 * getBorderWidth (); + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + upDownHeight += (style & DWT.BORDER) !is 0 ? 1 : 3; + } + trim.height = Math.max (trim.height, upDownHeight); + } + return new Point (trim.width, trim.height); +} + +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + + /* Get the trim of the text control */ + RECT rect = new RECT (); + OS.SetRect (rect, x, y, x + width, y + height); + int bits0 = OS.GetWindowLong (hwndText, OS.GWL_STYLE); + int bits1 = OS.GetWindowLong (hwndText, OS.GWL_EXSTYLE); + OS.AdjustWindowRectEx (rect, bits0, false, bits1); + width = rect.right - rect.left; + height = rect.bottom - rect.top; + + /* + * The preferred height of a single-line text widget + * has been hand-crafted to be the same height as + * the single-line text widget in an editable combo + * box. + */ + int margins = OS.SendMessage (hwndText, OS.EM_GETMARGINS, 0, 0); + x -= margins & 0xFFFF; + width += (margins & 0xFFFF) + ((margins >> 16) & 0xFFFF); + if ((style & DWT.BORDER) !is 0) { + x -= 1; + y -= 1; + width += 2; + height += 2; + } + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + return new Rectangle (x, y, width, height); +} + +/** + * Copies the selected text. + * <p> + * The current selection is copied to the clipboard. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void copy () { + checkWidget (); + OS.SendMessage (hwndText, OS.WM_COPY, 0, 0); +} + +/** + * Cuts the selected text. + * <p> + * The current selection is first copied to the + * clipboard and then deleted from the widget. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void cut () { + checkWidget (); + if ((style & DWT.READ_ONLY) !is 0) return; + OS.SendMessage (hwndText, OS.WM_CUT, 0, 0); +} + +int defaultBackground () { + return OS.GetSysColor (OS.COLOR_WINDOW); +} + +void enableWidget (bool enabled) { + super.enableWidget (enabled); + OS.EnableWindow (hwndText, enabled); + OS.EnableWindow (hwndUpDown, enabled); +} + +void deregister () { + super.deregister (); + display.removeControl (hwndText); + display.removeControl (hwndUpDown); +} + +bool hasFocus () { + int hwndFocus = OS.GetFocus (); + if (hwndFocus is handle) return true; + if (hwndFocus is hwndText) return true; + if (hwndFocus is hwndUpDown) return true; + return false; +} + +/** + * Returns the number of decimal places used by the receiver. + * + * @return the digits + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getDigits () { + checkWidget (); + return digits; +} + +String getDecimalSeparator () { + TCHAR tchar = new TCHAR (getCodePage (), 4); + int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, OS.LOCALE_SDECIMAL, tchar, 4); + return size !is 0 ? tchar.toString (0, size - 1) : "."; +} + +/** + * Returns the amount that the receiver's value will be + * modified by when the up/down arrows are pressed. + * + * @return the increment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getIncrement () { + checkWidget (); + UDACCEL udaccel = new UDACCEL (); + OS.SendMessage (hwndUpDown, OS.UDM_GETACCEL, 1, udaccel); + return udaccel.nInc; +} + +/** + * Returns the maximum value which the receiver will allow. + * + * @return the maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMaximum () { + checkWidget (); + int [] max = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, null, max); + return max [0]; +} + +/** + * Returns the minimum value which the receiver will allow. + * + * @return the minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getMinimum () { + checkWidget (); + int [] min = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, null); + return min [0]; +} + +/** + * Returns the amount that the receiver's position will be + * modified by when the page up/down keys are pressed. + * + * @return the page increment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getPageIncrement () { + checkWidget (); + return pageIncrement; +} + +/** + * Returns the <em>selection</em>, which is the receiver's position. + * + * @return the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelection () { + checkWidget (); + if (OS.IsWinCE) { + return OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; + } else { + return OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); + } +} + +int getSelectionText () { + int length = OS.GetWindowTextLength (hwndText); + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (hwndText, buffer, length + 1); + String string = buffer.toString (0, length); + try { + int value; + if (digits > 0) { + String decimalSeparator = getDecimalSeparator (); + int index = string.indexOf (decimalSeparator); + if (index !is -1) { + String wholePart = string.substring (0, index); + String decimalPart = string.substring (index + 1); + if (decimalPart.length () > digits) { + decimalPart = decimalPart.substring (0, digits); + } else { + int i = digits - decimalPart.length (); + for (int j = 0; j < i; j++) { + decimalPart = decimalPart + "0"; + } + } + int wholeValue = Integer.parseInt (wholePart); + int decimalValue = Integer.parseInt (decimalPart); + for (int i = 0; i < digits; i++) wholeValue *= 10; + value = wholeValue + decimalValue; + } else { + value = Integer.parseInt (string); + } + } else { + value = Integer.parseInt (string); + } + int [] max = new int [1], min = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, max); + if (min [0] <= value && value <= max [0]) return value; + } catch (NumberFormatException e) { + } + return -1; +} + +int mbcsToWcsPos (int mbcsPos) { + if (mbcsPos <= 0) return 0; + if (OS.IsUnicode) return mbcsPos; + int mbcsSize = OS.GetWindowTextLengthA (hwndText); + if (mbcsSize is 0) return 0; + if (mbcsPos >= mbcsSize) return mbcsSize; + byte [] buffer = new byte [mbcsSize + 1]; + OS.GetWindowTextA (hwndText, buffer, mbcsSize + 1); + return OS.MultiByteToWideChar (getCodePage (), OS.MB_PRECOMPOSED, buffer, mbcsPos, null, 0); +} + +/** + * Pastes text from clipboard. + * <p> + * The selected text is deleted from the widget + * and new text inserted from the clipboard. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void paste () { + checkWidget (); + if ((style & DWT.READ_ONLY) !is 0) return; + OS.SendMessage (hwndText, OS.WM_PASTE, 0, 0); +} + +void register () { + super.register (); + display.addControl (hwndText, this); + display.addControl (hwndUpDown, this); +} + +void releaseHandle () { + super.releaseHandle (); + hwndText = hwndUpDown = 0; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the receiver's text is modified. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ModifyListener + * @see #addModifyListener + */ +public void removeModifyListener (ModifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Modify, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is verified. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see VerifyListener + * @see #addVerifyListener + */ +void removeVerifyListener (VerifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Verify, listener); +} + +bool sendKeyEvent (int type, int msg, int wParam, int lParam, Event event) { + if (!super.sendKeyEvent (type, msg, wParam, lParam, event)) { + return false; + } + if ((style & DWT.READ_ONLY) !is 0) return true; + if (type !is DWT.KeyDown) return true; + if (msg !is OS.WM_CHAR && msg !is OS.WM_KEYDOWN && msg !is OS.WM_IME_CHAR) { + return true; + } + if (event.character is 0) return true; +// if (!hooks (DWT.Verify) && !filters (DWT.Verify)) return true; + char key = event.character; + int stateMask = event.stateMask; + + /* + * Disable all magic keys that could modify the text + * and don't send events when Alt, Shift or Ctrl is + * pressed. + */ + switch (msg) { + case OS.WM_CHAR: + if (key !is 0x08 && key !is 0x7F && key !is '\r' && key !is '\t' && key !is '\n') break; + // FALL THROUGH + case OS.WM_KEYDOWN: + if ((stateMask & (DWT.ALT | DWT.SHIFT | DWT.CONTROL)) !is 0) return false; + break; + } + + /* + * If the left button is down, the text widget refuses the character. + */ + if (OS.GetKeyState (OS.VK_LBUTTON) < 0) { + return true; + } + + /* Verify the character */ + String oldText = ""; + int [] start = new int [1], end = new int [1]; + OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); + switch (key) { + case 0x08: /* Bs */ + if (start [0] is end [0]) { + if (start [0] is 0) return true; + start [0] = start [0] - 1; + if (!OS.IsUnicode && OS.IsDBLocale) { + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); + OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); + if (start [0] !is newStart [0]) start [0] = start [0] - 1; + } + start [0] = Math.max (start [0], 0); + } + break; + case 0x7F: /* Del */ + if (start [0] is end [0]) { + int length = OS.GetWindowTextLength (hwndText); + if (start [0] is length) return true; + end [0] = end [0] + 1; + if (!OS.IsUnicode && OS.IsDBLocale) { + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); + OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); + if (end [0] !is newEnd [0]) end [0] = end [0] + 1; + } + end [0] = Math.min (end [0], length); + } + break; + case '\r': /* Return */ + return true; + default: /* Tab and other characters */ + if (key !is '\t' && key < 0x20) return true; + oldText = new String (new char [] {key}); + break; + } + String newText = verifyText (oldText, start [0], end [0], event); + if (newText is null) return false; + if (newText is oldText) return true; + TCHAR buffer = new TCHAR (getCodePage (), newText, true); + OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); + OS.SendMessage (hwndText, OS.EM_REPLACESEL, 0, buffer); + return false; +} + +void setBackgroundImage (int hBitmap) { + super.setBackgroundImage (hBitmap); + OS.InvalidateRect (hwndText, null, true); +} + +void setBackgroundPixel (int pixel) { + super.setBackgroundPixel (pixel); + OS.InvalidateRect (hwndText, null, true); +} + +/** + * Sets the number of decimal places used by the receiver. + * <p> + * The digit setting is used to allow for floating point values in the receiver. + * For example, to set the selection to a floating point value of 1.37 call setDigits() with + * a value of 2 and setSelection() with a value of 137. Similarly, if getDigits() has a value + * of 2 and getSelection() returns 137 this should be interpreted as 1.37. This applies to all + * numeric APIs. + * </p> + * + * @param value the new digits (must be greater than or equal to zero) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the value is less than zero</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setDigits (int value) { + checkWidget (); + if (value < 0) error (DWT.ERROR_INVALID_ARGUMENT); + if (value is this.digits) return; + this.digits = value; + int pos; + if (OS.IsWinCE) { + pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; + } else { + pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); + } + setSelection (pos, false, true, false); +} + +void setForegroundPixel (int pixel) { + super.setForegroundPixel (pixel); + OS.InvalidateRect (hwndText, null, true); +} + +/** + * Sets the amount that the receiver's value will be + * modified by when the up/down arrows are pressed to + * the argument, which must be at least one. + * + * @param value the new increment (must be greater than zero) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setIncrement (int value) { + checkWidget (); + if (value < 1) return; + int hHeap = OS.GetProcessHeap (); + int count = OS.SendMessage (hwndUpDown, OS.UDM_GETACCEL, 0, (UDACCEL)null); + int udaccels = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, UDACCEL.sizeof * count); + OS.SendMessage (hwndUpDown, OS.UDM_GETACCEL, count, udaccels); + int first = -1; + UDACCEL udaccel = new UDACCEL (); + for (int i = 0; i < count; i++) { + int offset = udaccels + (i * UDACCEL.sizeof); + OS.MoveMemory (udaccel, offset, UDACCEL.sizeof); + if (first is -1) first = udaccel.nInc; + udaccel.nInc = udaccel.nInc * value / first; + OS.MoveMemory (offset, udaccel, UDACCEL.sizeof); + } + OS.SendMessage (hwndUpDown, OS.UDM_SETACCEL, count, udaccels); + OS.HeapFree (hHeap, 0, udaccels); +} + +/** + * Sets the maximum value that the receiver will allow. This new + * value will be ignored if it is not greater than the receiver's current + * minimum value. If the new maximum is applied then the receiver's + * selection value will be adjusted if necessary to fall within its new range. + * + * @param value the new maximum, which must be greater than the current minimum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMaximum (int value) { + checkWidget (); + if (value < 0) return; + int [] min = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, null); + if (value <= min [0]) return; + int pos; + if (OS.IsWinCE) { + pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; + } else { + pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); + } + OS.SendMessage (hwndUpDown , OS.UDM_SETRANGE32, min [0], value); + if (pos > value) setSelection (value, true, true, false); +} + +/** + * Sets the minimum value that the receiver will allow. This new + * value will be ignored if it is negative or is not less than the receiver's + * current maximum value. If the new minimum is applied then the receiver's + * selection value will be adjusted if necessary to fall within its new range. + * + * @param value the new minimum, which must be nonnegative and less than the current maximum + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMinimum (int value) { + checkWidget (); + if (value < 0) return; + int [] max = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, null, max); + if (value >= max [0]) return; + int pos; + if (OS.IsWinCE) { + pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; + } else { + pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); + } + OS.SendMessage (hwndUpDown , OS.UDM_SETRANGE32, value, max [0]); + if (pos < value) setSelection (value, true, true, false); +} + +/** + * Sets the amount that the receiver's position will be + * modified by when the page up/down keys are pressed + * to the argument, which must be at least one. + * + * @param value the page increment (must be greater than zero) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setPageIncrement (int value) { + checkWidget (); + if (value < 1) return; + pageIncrement = value; +} + +/** + * Sets the <em>selection</em>, which is the receiver's + * position, to the argument. If the argument is not within + * the range specified by minimum and maximum, it will be + * adjusted to fall within this range. + * + * @param value the new selection (must be zero or greater) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (int value) { + checkWidget (); + int [] max = new int [1], min = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, max); + value = Math.min (Math.max (min [0], value), max [0]); + setSelection (value, true, true, false); +} + +void setSelection (int value, bool setPos, bool setText, bool notify) { + if (setPos) { + OS.SendMessage (hwndUpDown , OS.IsWinCE ? OS.UDM_SETPOS : OS.UDM_SETPOS32, 0, value); + } + if (setText) { + String string = String.valueOf (value); + if (digits > 0) { + String decimalSeparator = getDecimalSeparator (); + int index = string.length () - digits; + StringBuffer buffer = new StringBuffer (); + if (index > 0) { + buffer.append (string.substring (0, index)); + buffer.append (decimalSeparator); + buffer.append (string.substring (index)); + } else { + buffer.append ("0"); + buffer.append (decimalSeparator); + while (index++ < 0) buffer.append ("0"); + buffer.append (string); + } + string = buffer.toString (); + } + if (hooks (DWT.Verify) || filters (DWT.Verify)) { + int length = OS.GetWindowTextLength (hwndText); + string = verifyText (string, 0, length, null); + if (string is null) return; + } + TCHAR buffer = new TCHAR (getCodePage (), string, true); + OS.SetWindowText (hwndText, buffer); + } + if (notify) postEvent (DWT.Selection); +} + +void setToolTipText (Shell shell, String string) { + shell.setToolTipText (hwndText, string); + shell.setToolTipText (hwndUpDown, string); +} + +/** + * Sets the receiver's selection, minimum value, maximum + * value, digits, increment and page increment all at once. + * <p> + * Note: This is similar to setting the values individually + * using the appropriate methods, but may be implemented in a + * more efficient fashion on some platforms. + * </p> + * + * @param selection the new selection value + * @param minimum the new minimum value + * @param maximum the new maximum value + * @param digits the new digits value + * @param increment the new increment value + * @param pageIncrement the new pageIncrement value + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setValues (int selection, int minimum, int maximum, int digits, int increment, int pageIncrement) { + checkWidget (); + if (minimum < 0) return; + if (maximum <= minimum) return; + if (digits < 0) return; + if (increment < 1) return; + if (pageIncrement < 1) return; + selection = Math.min (Math.max (minimum, selection), maximum); + setIncrement (increment); + this.pageIncrement = pageIncrement; + this.digits = digits; + OS.SendMessage (hwndUpDown , OS.UDM_SETRANGE32, minimum, maximum); + setSelection (selection, true, true, false); +} + +void subclass () { + super.subclass (); + int newProc = display.windowProc; + OS.SetWindowLong (hwndText, OS.GWL_WNDPROC, newProc); + OS.SetWindowLong (hwndUpDown, OS.GWL_WNDPROC, newProc); +} + +void unsubclass () { + super.unsubclass (); + OS.SetWindowLong (hwndText, OS.GWL_WNDPROC, EditProc); + OS.SetWindowLong (hwndUpDown, OS.GWL_WNDPROC, UpDownProc); +} + +String verifyText (String string, int start, int end, Event keyEvent) { + Event event = new Event (); + event.text = string; + event.start = start; + event.end = end; + if (keyEvent !is null) { + event.character = keyEvent.character; + event.keyCode = keyEvent.keyCode; + event.stateMask = keyEvent.stateMask; + } + int index = 0; + if (digits > 0) { + String decimalSeparator = getDecimalSeparator (); + index = string.indexOf (decimalSeparator); + if (index !is -1) { + string = string.substring (0, index) + string.substring (index + 1); + } + index = 0; + } + while (index < string.length ()) { + if (!Character.isDigit (string.charAt (index))) break; + index++; + } + event.doit = index is string.length (); + if (!OS.IsUnicode && OS.IsDBLocale) { + event.start = mbcsToWcsPos (start); + event.end = mbcsToWcsPos (end); + } + sendEvent (DWT.Verify, event); + if (!event.doit || isDisposed ()) return null; + return event.text; +} + +int widgetExtStyle () { + return super.widgetExtStyle () & ~OS.WS_EX_CLIENTEDGE; +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + if (hwnd is hwndText || hwnd is hwndUpDown) { + LRESULT result = null; + switch (msg) { + /* Keyboard messages */ + case OS.WM_CHAR: result = wmChar (hwnd, wParam, lParam); break; + case OS.WM_IME_CHAR: result = wmIMEChar (hwnd, wParam, lParam); break; + case OS.WM_KEYDOWN: result = wmKeyDown (hwnd, wParam, lParam); break; + case OS.WM_KEYUP: result = wmKeyUp (hwnd, wParam, lParam); break; + case OS.WM_SYSCHAR: result = wmSysChar (hwnd, wParam, lParam); break; + case OS.WM_SYSKEYDOWN: result = wmSysKeyDown (hwnd, wParam, lParam); break; + case OS.WM_SYSKEYUP: result = wmSysKeyUp (hwnd, wParam, lParam); break; + + /* Mouse Messages */ + case OS.WM_CAPTURECHANGED: result = wmCaptureChanged (hwnd, wParam, lParam); break; + case OS.WM_LBUTTONDBLCLK: result = wmLButtonDblClk (hwnd, wParam, lParam); break; + case OS.WM_LBUTTONDOWN: result = wmLButtonDown (hwnd, wParam, lParam); break; + case OS.WM_LBUTTONUP: result = wmLButtonUp (hwnd, wParam, lParam); break; + case OS.WM_MBUTTONDBLCLK: result = wmMButtonDblClk (hwnd, wParam, lParam); break; + case OS.WM_MBUTTONDOWN: result = wmMButtonDown (hwnd, wParam, lParam); break; + case OS.WM_MBUTTONUP: result = wmMButtonUp (hwnd, wParam, lParam); break; + case OS.WM_MOUSEHOVER: result = wmMouseHover (hwnd, wParam, lParam); break; + case OS.WM_MOUSELEAVE: result = wmMouseLeave (hwnd, wParam, lParam); break; + case OS.WM_MOUSEMOVE: result = wmMouseMove (hwnd, wParam, lParam); break; +// case OS.WM_MOUSEWHEEL: result = wmMouseWheel (hwnd, wParam, lParam); break; + case OS.WM_RBUTTONDBLCLK: result = wmRButtonDblClk (hwnd, wParam, lParam); break; + case OS.WM_RBUTTONDOWN: result = wmRButtonDown (hwnd, wParam, lParam); break; + case OS.WM_RBUTTONUP: result = wmRButtonUp (hwnd, wParam, lParam); break; + case OS.WM_XBUTTONDBLCLK: result = wmXButtonDblClk (hwnd, wParam, lParam); break; + case OS.WM_XBUTTONDOWN: result = wmXButtonDown (hwnd, wParam, lParam); break; + case OS.WM_XBUTTONUP: result = wmXButtonUp (hwnd, wParam, lParam); break; + + /* Focus Messages */ + case OS.WM_SETFOCUS: result = wmSetFocus (hwnd, wParam, lParam); break; + case OS.WM_KILLFOCUS: result = wmKillFocus (hwnd, wParam, lParam); break; + + /* Paint messages */ + case OS.WM_PAINT: result = wmPaint (hwnd, wParam, lParam); break; + case OS.WM_PRINT: result = wmPrint (hwnd, wParam, lParam); break; + + /* Menu messages */ + case OS.WM_CONTEXTMENU: result = wmContextMenu (hwnd, wParam, lParam); break; + + /* Clipboard messages */ + case OS.WM_CLEAR: + case OS.WM_CUT: + case OS.WM_PASTE: + case OS.WM_UNDO: + case OS.EM_UNDO: + if (hwnd is hwndText) { + result = wmClipboard (hwnd, msg, wParam, lParam); + } + break; + } + if (result !is null) return result.value; + return callWindowProc (hwnd, msg, wParam, lParam); + } + return super.windowProc (hwnd, msg, wParam, lParam); +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + super.WM_ERASEBKGND (wParam, lParam); + drawBackground (wParam); + return LRESULT.ONE; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + return null; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + OS.SetFocus (hwndText); + return null; +} + +LRESULT WM_SETFONT (int wParam, int lParam) { + LRESULT result = super.WM_SETFONT (wParam, lParam); + if (result !is null) return result; + OS.SendMessage (hwndText, OS.WM_SETFONT, wParam, lParam); + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + if (isDisposed ()) return result; + int width = lParam & 0xFFFF, height = lParam >> 16; + int upDownWidth = OS.GetSystemMetrics (OS.SM_CXVSCROLL); + int textWidth = width - upDownWidth; + int border = OS.GetSystemMetrics (OS.SM_CXEDGE); + int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; + SetWindowPos (hwndText, 0, 0, 0, textWidth + border, height, flags); + SetWindowPos (hwndUpDown, 0, textWidth, 0, upDownWidth, height, flags); + return result; +} + +LRESULT wmChar (int hwnd, int wParam, int lParam) { + LRESULT result = super.wmChar (hwnd, wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. For some reason, when the + * widget is a single line text widget, when the + * user presses tab, return or escape, Windows beeps. + * The fix is to look for these keys and not call + * the window proc. + */ + switch (wParam) { + case DWT.CR: + postEvent (DWT.DefaultSelection); + // FALL THROUGH + case DWT.TAB: + case DWT.ESC: return LRESULT.ZERO; + } + return result; +} + +LRESULT wmClipboard (int hwndText, int msg, int wParam, int lParam) { + if ((style & DWT.READ_ONLY) !is 0) return null; +// if (!hooks (DWT.Verify) && !filters (DWT.Verify)) return null; + bool call = false; + int [] start = new int [1], end = new int [1]; + String newText = null; + switch (msg) { + case OS.WM_CLEAR: + case OS.WM_CUT: + OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); + if (start [0] !is end [0]) { + newText = ""; + call = true; + } + break; + case OS.WM_PASTE: + OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); + newText = getClipboardText (); + break; + case OS.EM_UNDO: + case OS.WM_UNDO: + if (OS.SendMessage (hwndText, OS.EM_CANUNDO, 0, 0) !is 0) { + ignoreModify = true; + OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); + OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); + int length = OS.GetWindowTextLength (hwndText); + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); + if (length !is 0 && newStart [0] !is newEnd [0]) { + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (hwndText, buffer, length + 1); + newText = buffer.toString (newStart [0], newEnd [0] - newStart [0]); + } else { + newText = ""; + } + OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); + ignoreModify = false; + } + break; + } + if (newText !is null) { + String oldText = newText; + newText = verifyText (newText, start [0], end [0], null); + if (newText is null) return LRESULT.ZERO; + if (!newText.equals (oldText)) { + if (call) { + OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); + } + TCHAR buffer = new TCHAR (getCodePage (), newText, true); + if (msg is OS.WM_SETTEXT) { + int hHeap = OS.GetProcessHeap (); + int byteCount = buffer.length () * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + int code = OS.CallWindowProc (EditProc, hwndText, msg, wParam, pszText); + OS.HeapFree (hHeap, 0, pszText); + return new LRESULT (code); + } else { + OS.SendMessage (hwndText, OS.EM_REPLACESEL, 0, buffer); + return LRESULT.ZERO; + } + } + } + return null; +} + +LRESULT wmCommandChild (int wParam, int lParam) { + int code = wParam >> 16; + switch (code) { + case OS.EN_CHANGE: + if (ignoreModify) break; + int value = getSelectionText (); + if (value !is -1) { + int pos; + if (OS.IsWinCE) { + pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; + } else { + pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); + } + if (pos !is value) setSelection (value, true, false, true); + } + sendEvent (DWT.Modify); + if (isDisposed ()) return LRESULT.ZERO; + break; + } + return super.wmCommandChild (wParam, lParam); +} + +LRESULT wmKeyDown (int hwnd, int wParam, int lParam) { + LRESULT result = super.wmKeyDown (hwnd, wParam, lParam); + if (result !is null) return result; + + /* Increment the value */ + UDACCEL udaccel = new UDACCEL (); + OS.SendMessage (hwndUpDown, OS.UDM_GETACCEL, 1, udaccel); + int delta = 0; + switch (wParam) { + case OS.VK_UP: delta = udaccel.nInc; break; + case OS.VK_DOWN: delta = -udaccel.nInc; break; + case OS.VK_PRIOR: delta = pageIncrement; break; + case OS.VK_NEXT: delta = -pageIncrement; break; + } + if (delta !is 0) { + int value = getSelectionText (); + if (value !is -1) { + if (OS.IsWinCE) { + value = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; + } else { + value = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); + } + } + int newValue = value + delta; + int [] max = new int [1], min = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, max); + if ((style & DWT.WRAP) !is 0) { + if (newValue < min [0]) newValue = max [0]; + if (newValue > max [0]) newValue = min [0]; + } + newValue = Math.min (Math.max (min [0], newValue), max [0]); + if (value !is newValue) setSelection (newValue, true, true, true); + } + + /* Stop the edit control from moving the caret */ + switch (wParam) { + case OS.VK_UP: + case OS.VK_DOWN: + return LRESULT.ZERO; + } + return result; +} + +LRESULT wmKillFocus (int hwnd, int wParam, int lParam) { + int value = getSelectionText (); + if (value is -1) { + if (OS.IsWinCE) { + value = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; + } else { + value = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); + } + setSelection (value, false, true, false); + } + return super.wmKillFocus (hwnd, wParam, lParam); +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + switch (hdr.code) { + case OS.UDN_DELTAPOS: + NMUPDOWN lpnmud = new NMUPDOWN (); + OS.MoveMemory (lpnmud, lParam, NMUPDOWN.sizeof); + int value = lpnmud.iPos + lpnmud.iDelta; + int [] max = new int [1], min = new int [1]; + OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, max); + if ((style & DWT.WRAP) !is 0) { + if (value < min [0]) value = max [0]; + if (value > max [0]) value = min [0]; + } + /* + * The DWT.Modify event is sent after the widget has been + * updated with the new state. Rather than allowing + * the default updown window proc to set the value + * when the user clicks on the updown control, set + * the value explicitly and stop the window proc + * from running. + */ + value = Math.min (Math.max (min [0], value), max [0]); + if (value !is lpnmud.iPos) { + setSelection (value, true, true, true); + } + return LRESULT.ONE; + } + return super.wmNotifyChild (hdr, wParam, lParam); +} + +LRESULT wmScrollChild (int wParam, int lParam) { + int code = wParam & 0xFFFF; + switch (code) { + case OS.SB_THUMBPOSITION: + postEvent (DWT.Selection); + break; + } + return super.wmScrollChild (wParam, lParam); +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Synchronizer.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,192 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Synchronizer; + +import dwt.widgets.Display; +import dwt.widgets.RunnableLock; +import dwt.dwthelper.Runnable; +import dwt.dwthelper.System; +import dwt.internal.Compatibility; + +import dwt.DWT; +import tango.core.Thread; +import tango.core.Exception; + +/** + * Instances of this class provide synchronization support + * for displays. A default instance is created automatically + * for each display, and this instance is sufficient for almost + * all applications. + * <p> + * <b>IMPORTANT:</b> Typical application code <em>never</em> + * needs to deal with this class. It is provided only to + * allow applications which require non-standard + * synchronization behavior to plug in the support they + * require. <em>Subclasses which override the methods in + * this class must ensure that the superclass methods are + * invoked in their implementations</em> + * </p> + * + * @see Display#setSynchronizer + */ +public class Synchronizer { + Display display; + int messageCount; + RunnableLock [] messages; + Object messageLock; + Thread syncThread; + +/** + * Constructs a new instance of this class. + * + * @param display the display to create the synchronizer on + */ +public this (Display display) { + this.display = display; + messageLock = new Object (); +} + +void addLast (RunnableLock lock) { + bool wake = false; + synchronized (messageLock) { + if (messages is null) messages = new RunnableLock [4]; + if (messageCount is messages.length) { + RunnableLock[] newMessages = new RunnableLock [messageCount + 4]; + System.arraycopy (messages, 0, newMessages, 0, messageCount); + messages = newMessages; + } + messages [messageCount++] = lock; + wake = messageCount is 1; + } + if (wake) display.wakeThread (); +} + +/** + * Causes the <code>run()</code> method of the runnable to + * be invoked by the user-interface thread at the next + * reasonable opportunity. The caller of this method continues + * to run in parallel, and is not notified when the + * runnable has completed. + * + * @param runnable code to run on the user-interface thread. + * + * @see #syncExec + */ +public void asyncExec (Runnable runnable) { + if (runnable is null) { + display.wake (); + return; + } + addLast (new RunnableLock (runnable)); +} + +int getMessageCount () { + synchronized (messageLock) { + return messageCount; + } +} + +void releaseSynchronizer () { + display = null; + messages = null; + messageLock = null; + syncThread = null; +} + +RunnableLock removeFirst () { + synchronized (messageLock) { + if (messageCount is 0) return null; + RunnableLock lock = messages [0]; + System.arraycopy (messages, 1, messages, 0, --messageCount); + messages [messageCount] = null; + if (messageCount is 0) { + if (messages.length > 64) messages = null; + } + return lock; + } +} + +bool runAsyncMessages () { + return runAsyncMessages (false); +} + +bool runAsyncMessages (bool all) { + bool run = false; + do { + RunnableLock lock = removeFirst (); + if (lock is null) return run; + run = true; + synchronized (lock) { + syncThread = lock.thread; + try { + lock.run (); + } catch (TracedException t) { + lock.throwable = t; + DWT.error (DWT.ERROR_FAILED_EXEC, t); + } finally { + syncThread = null; + lock.notifyAll (); + } + } + } while (all); + return run; +} + +/** + * Causes the <code>run()</code> method of the runnable to + * be invoked by the user-interface thread at the next + * reasonable opportunity. The thread which calls this method + * is suspended until the runnable completes. + * + * @param runnable code to run on the user-interface thread. + * + * @exception DWTException <ul> + * <li>ERROR_FAILED_EXEC - if an exception occurred when executing the runnable</li> + * </ul> + * + * @see #asyncExec + */ +public void syncExec (Runnable runnable) { + if (display.isValidThread ()) { + if (runnable !is null) runnable.run (); + return; + } + if (runnable is null) { + display.wake (); + return; + } + RunnableLock lock = new RunnableLock (runnable); + /* + * Only remember the syncThread for syncExec. + */ + lock.thread = Thread.getThis(); + synchronized (lock) { + addLast (lock); + bool interrupted = false; + while (!lock.done ()) { + try { + lock.wait (); + } catch (SyncException e) { + interrupted = true; + } + } + if (interrupted) { + Compatibility.interrupt(); + } + if (lock.throwable !is null) { + DWT.error (DWT.ERROR_FAILED_EXEC, lock.throwable); + } + } +} + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/TabFolder.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,979 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.TabFolder; + +import dwt.widgets.Composite; +class TabFolder : Composite { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Font; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.ImageList; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.NMTTDISPINFO; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TCITEM; +import dwt.internal.win32.TOOLINFO; +import dwt.internal.win32.WINDOWPOS; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class implement the notebook user interface + * metaphor. It allows the user to select a notebook page from + * set of pages. + * <p> + * The item children that may be added to instances of this class + * must be of type <code>TabItem</code>. + * <code>Control</code> children are created and then set into a + * tab item using <code>TabItem#setControl</code>. + * </p><p> + * Note that although this class is a subclass of <code>Composite</code>, + * it does not make sense to set a layout on it. + * </p><p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>TOP, BOTTOM</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles TOP and BOTTOM may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ +public class TabFolder extends Composite { + TabItem [] items; + ImageList imageList; + static final int TabFolderProc; + static final TCHAR TabFolderClass = new TCHAR (0, OS.WC_TABCONTROL, true); + + /* + * These are the undocumented control id's for the children of + * a tab control. Since there are no constants for these values, + * they may change with different versions of Windows. + */ + static final int ID_UPDOWN = 1; + + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, TabFolderClass, lpWndClass); + TabFolderProc = lpWndClass.lpfnWndProc; + /* + * Feature in Windows. The tab control window class + * uses the CS_HREDRAW and CS_VREDRAW style bits to + * force a full redraw of the control and all children + * when resized. This causes flashing. The fix is to + * register a new window class without these bits and + * implement special code that damages only the exposed + * area. + * + * NOTE: Screen readers look for the exact class name + * of the control in order to provide the correct kind + * of assistance. Therefore, it is critical that the + * new window class have the same name. It is possible + * to register a local window class with the same name + * as a global class. Since bits that affect the class + * are being changed, it is possible that other native + * code, other than DWT, could create a control with + * this class name, and fail unexpectedly. + */ + int hInstance = OS.GetModuleHandle (null); + int hHeap = OS.GetProcessHeap (); + lpWndClass.hInstance = hInstance; + lpWndClass.style &= ~(OS.CS_HREDRAW | OS.CS_VREDRAW | OS.CS_GLOBALCLASS); + int byteCount = TabFolderClass.length () * TCHAR.sizeof; + int lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (lpszClassName, TabFolderClass, byteCount); + lpWndClass.lpszClassName = lpszClassName; + OS.RegisterClass (lpWndClass); + OS.HeapFree (hHeap, 0, lpszClassName); + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TabFolder (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the user changes the receiver's selection, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called, the item field of the event object is valid. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the user changes the receiver's selection + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener(listener); + addListener(DWT.Selection,typedListener); + addListener(DWT.DefaultSelection,typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (TabFolderProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + /* + * When the DWT.TOP style has not been set, force the + * tabs to be on the bottom for tab folders on PPC. + */ + if (OS.IsPPC) { + if ((style & DWT.TOP) is 0) style |= DWT.BOTTOM; + } + style = checkBits (style, DWT.TOP, DWT.BOTTOM, 0, 0, 0, 0); + + /* + * Even though it is legal to create this widget + * with scroll bars, they serve no useful purpose + * because they do not automatically scroll the + * widget's client area. The fix is to clear + * the DWT style. + */ + return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + Point size = super.computeSize (wHint, hHint, changed); + RECT insetRect = new RECT (), itemRect = new RECT (); + OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 0, insetRect); + int width = insetRect.left - insetRect.right; + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + if (count !is 0) { + OS.SendMessage (handle, OS.TCM_GETITEMRECT, count - 1, itemRect); + width = Math.max (width, itemRect.right - insetRect.right); + } + RECT rect = new RECT (); + OS.SetRect (rect, 0, 0, width, size.y); + OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 1, rect); + int border = getBorderWidth (); + rect.left -= border; rect.right += border; + width = rect.right - rect.left; + size.x = Math.max (width, size.x); + return size; +} + +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + RECT rect = new RECT (); + OS.SetRect (rect, x, y, x + width, y + height); + OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 1, rect); + int border = getBorderWidth (); + rect.left -= border; rect.right += border; + rect.top -= border; rect.bottom += border; + int newWidth = rect.right - rect.left; + int newHeight = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, newWidth, newHeight); +} + +void createItem (TabItem item, int index) { + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index <= count)) error (DWT.ERROR_INVALID_RANGE); + if (count is items.length) { + TabItem [] newItems = new TabItem [items.length + 4]; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; + } + TCITEM tcItem = new TCITEM (); + if (OS.SendMessage (handle, OS.TCM_INSERTITEM, index, tcItem) is -1) { + error (DWT.ERROR_ITEM_NOT_ADDED); + } + System.arraycopy (items, index, items, index + 1, count - index); + items [index] = item; + + /* + * Send a selection event when the item that is added becomes + * the new selection. This only happens when the first item + * is added. + */ + if (count is 0) { + Event event = new Event (); + event.item = items [0]; + sendEvent (DWT.Selection, event); + // the widget could be destroyed at this point + } +} + +void createHandle () { + super.createHandle (); + state &= ~(CANVAS | THEME_BACKGROUND); + + /* Enable the flat look for tab folders on PPC */ + if (OS.IsPPC) { + OS.SendMessage (handle, OS.CCM_SETVERSION, 0x020c /*COMCTL32_VERSION*/, 0); + } + + /* + * Feature in Windows. Despite the fact that the + * tool tip text contains \r\n, the tooltip will + * not honour the new line unless TTM_SETMAXTIPWIDTH + * is set. The fix is to set TTM_SETMAXTIPWIDTH to + * a large value. + */ + int hwndToolTip = OS.SendMessage (handle, OS.TCM_GETTOOLTIPS, 0, 0); + OS.SendMessage (hwndToolTip, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); +} + +void createWidget () { + super.createWidget (); + items = new TabItem [4]; +} + +void destroyItem (TabItem item) { + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + int index = 0; + while (index < count) { + if (items [index] is item) break; + index++; + } + if (index is count) return; + int selectionIndex = OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0); + if (OS.SendMessage (handle, OS.TCM_DELETEITEM, index, 0) is 0) { + error (DWT.ERROR_ITEM_NOT_REMOVED); + } + System.arraycopy (items, index + 1, items, index, --count - index); + items [count] = null; + if (count is 0) { + if (imageList !is null) { + OS.SendMessage (handle, OS.TCM_SETIMAGELIST, 0, 0); + display.releaseImageList (imageList); + } + imageList = null; + items = new TabItem [4]; + } + if (count > 0 && index is selectionIndex) { + setSelection (Math.max (0, selectionIndex - 1), true); + } +} + +void drawThemeBackground (int hDC, int hwnd, RECT rect) { + RECT rect2 = new RECT (); + OS.GetClientRect (handle, rect2); + OS.MapWindowPoints (handle, hwnd, rect2, 2); + if (OS.IntersectRect (new RECT (), rect2, rect)) { + OS.DrawThemeBackground (display.hTabTheme (), hDC, OS.TABP_BODY, 0, rect2, null); + } +} + +Control findThemeControl () { + /* It is not possible to change the background of this control */ + return this; +} + +public Rectangle getClientArea () { + checkWidget (); + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 0, rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TabItem getItem (int index) { + checkWidget (); + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index < count)) error (DWT.ERROR_INVALID_RANGE); + return items [index]; +} + +/** + * Returns the number of items contained in the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + return OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); +} + +/** + * Returns an array of <code>TabItem</code>s which are the items + * in the receiver. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TabItem [] getItems () { + checkWidget (); + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + TabItem [] result = new TabItem [count]; + System.arraycopy (items, 0, result, 0, count); + return result; +} + +/** + * Returns an array of <code>TabItem</code>s that are currently + * selected in the receiver. An empty array indicates that no + * items are selected. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its selection, so modifying the array will + * not affect the receiver. + * </p> + * @return an array representing the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TabItem [] getSelection () { + checkWidget (); + int index = OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0); + if (index is -1) return new TabItem [0]; + return new TabItem [] {items [index]}; +} + +/** + * Returns the zero-relative index of the item which is currently + * selected in the receiver, or -1 if no item is selected. + * + * @return the index of the selected item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelectionIndex () { + checkWidget (); + return OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0); +} + +int imageIndex (Image image) { + if (image is null) return OS.I_IMAGENONE; + if (imageList is null) { + Rectangle bounds = image.getBounds (); + imageList = display.getImageList (style & DWT.RIGHT_TO_LEFT, bounds.width, bounds.height); + int index = imageList.add (image); + int hImageList = imageList.getHandle (); + OS.SendMessage (handle, OS.TCM_SETIMAGELIST, 0, hImageList); + return index; + } + int index = imageList.indexOf (image); + if (index is -1) { + index = imageList.add (image); + } else { + imageList.put (index, image); + } + return index; +} + +/** + * Searches the receiver's list starting at the first item + * (index 0) until an item is found that is equal to the + * argument, and returns the index of that item. If no item + * is found, returns -1. + * + * @param item the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (TabItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + if (items [i] is item) return i; + } + return -1; +} + +Point minimumSize (int wHint, int hHint, bool flushCache) { + Control [] children = _getChildren (); + int width = 0, height = 0; + for (int i=0; i<children.length; i++) { + Control child = children [i]; + int index = 0; + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + while (index < count) { + if (items [index].control is child) break; + index++; + } + if (index is count) { + Rectangle rect = child.getBounds (); + width = Math.max (width, rect.x + rect.width); + height = Math.max (height, rect.y + rect.height); + } else { + Point size = child.computeSize (wHint, hHint, flushCache); + width = Math.max (width, size.x); + height = Math.max (height, size.y); + } + } + return new Point (width, height); +} + +bool mnemonicHit (char key) { + for (int i=0; i<items.length; i++) { + TabItem item = items [i]; + if (item !is null) { + char ch = findMnemonic (item.getText ()); + if (Character.toUpperCase (key) is Character.toUpperCase (ch)) { + if (forceFocus ()) { + if (i !is getSelectionIndex ()) setSelection (i, true); + return true; + } + } + } + } + return false; +} + +bool mnemonicMatch (char key) { + for (int i=0; i<items.length; i++) { + TabItem item = items [i]; + if (item !is null) { + char ch = findMnemonic (item.getText ()); + if (Character.toUpperCase (key) is Character.toUpperCase (ch)) { + return true; + } + } + } + return false; +} + +void releaseChildren (bool destroy) { + if (items !is null) { + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + TabItem item = items [i]; + if (item !is null && !item.isDisposed ()) { + item.release (false); + } + } + items = null; + } + super.releaseChildren (destroy); +} + +void releaseWidget () { + super.releaseWidget (); + if (imageList !is null) { + OS.SendMessage (handle, OS.TCM_SETIMAGELIST, 0, 0); + display.releaseImageList (imageList); + } + imageList = null; +} + +void removeControl (Control control) { + super.removeControl (control); + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + TabItem item = items [i]; + if (item.control is control) item.setControl (null); + } +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the user changes the receiver's selection. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Sets the receiver's selection to the given item. + * The current selected is first cleared, then the new item is + * selected. + * + * @param item the item to select + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setSelection (TabItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + setSelection (new TabItem [] {item}); +} + +/** + * Sets the receiver's selection to be the given array of items. + * The current selected is first cleared, then the new items are + * selected. + * + * @param items the array of items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the items array is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (TabItem [] items) { + checkWidget (); + if (items is null) error (DWT.ERROR_NULL_ARGUMENT); + if (items.length is 0) { + setSelection (-1, false); + } else { + for (int i=items.length-1; i>=0; --i) { + int index = indexOf (items [i]); + if (index !is -1) setSelection (index, false); + } + } +} + +public void setFont (Font font) { + checkWidget (); + Rectangle oldRect = getClientArea (); + super.setFont (font); + Rectangle newRect = getClientArea (); + if (!oldRect.equals (newRect)) { + sendResize (); + int index = OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0); + if (index !is -1) { + TabItem item = items [index]; + Control control = item.control; + if (control !is null && !control.isDisposed ()) { + control.setBounds (getClientArea ()); + } + } + } +} + +/** + * Selects the item at the given zero-relative index in the receiver. + * If the item at the index was already selected, it remains selected. + * The current selection is first cleared, then the new items are + * selected. Indices that are out of range are ignored. + * + * @param index the index of the item to select + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (int index) { + checkWidget (); + int count = OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index < count)) return; + setSelection (index, false); +} + +void setSelection (int index, bool notify) { + int oldIndex = OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0); + if (oldIndex is index) return; + if (oldIndex !is -1) { + TabItem item = items [oldIndex]; + Control control = item.control; + if (control !is null && !control.isDisposed ()) { + control.setVisible (false); + } + } + OS.SendMessage (handle, OS.TCM_SETCURSEL, index, 0); + int newIndex = OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0); + if (newIndex !is -1) { + TabItem item = items [newIndex]; + Control control = item.control; + if (control !is null && !control.isDisposed ()) { + control.setBounds (getClientArea ()); + control.setVisible (true); + } + if (notify) { + Event event = new Event (); + event.item = item; + sendEvent (DWT.Selection, event); + } + } +} + +String toolTipText (NMTTDISPINFO hdr) { + if ((hdr.uFlags & OS.TTF_IDISHWND) !is 0) { + return null; + } + int index = hdr.idFrom; + int hwndToolTip = OS.SendMessage (handle, OS.TCM_GETTOOLTIPS, 0, 0); + if (hwndToolTip is hdr.hwndFrom) { + if (toolTipText !is null) return ""; + if (0 <= index && index < items.length) { + TabItem item = items [index]; + if (item !is null) return item.toolTipText; + } + } + return super.toolTipText (hdr); +} + +bool traversePage (bool next) { + int count = getItemCount (); + if (count <= 1) return false; + int index = getSelectionIndex (); + if (index is -1) { + index = 0; + } else { + int offset = (next) ? 1 : -1; + index = (index + offset + count) % count; + } + setSelection (index, true); + if (index is getSelectionIndex ()) { + OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); + return true; + } + return false; +} + +int widgetStyle () { + /* + * Bug in Windows. Under certain circumstances, + * when TCM_SETITEM is used to change the text + * in a tab item, the tab folder draws on top + * of the client area. The fix is ensure that + * this cannot happen by setting WS_CLIPCHILDREN. + */ + int bits = super.widgetStyle () | OS.WS_CLIPCHILDREN; + if ((style & DWT.NO_FOCUS) !is 0) bits |= OS.TCS_FOCUSNEVER; + if ((style & DWT.BOTTOM) !is 0) bits |= OS.TCS_BOTTOM; + return bits | OS.TCS_TABS | OS.TCS_TOOLTIPS; +} + +TCHAR windowClass () { + return TabFolderClass; +} + +int windowProc () { + return TabFolderProc; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + LRESULT result = super.WM_GETDLGCODE (wParam, lParam); + /* + * Return DLGC_BUTTON so that mnemonics will be + * processed without needing to press the ALT key + * when the widget has focus. + */ + if (result !is null) return result; + return new LRESULT (OS.DLGC_BUTTON); +} + +LRESULT WM_MOUSELEAVE (int wParam, int lParam) { + LRESULT result = super.WM_MOUSELEAVE (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. On XP, when a tooltip is + * hidden due to a time out or mouse press, + * the tooltip remains active although no + * longer visible and won't show again until + * another tooltip becomes active. If there + * is only one tooltip in the window, it will + * never show again. The fix is to remove the + * current tooltip and add it again every time + * the mouse leaves the control. + */ + if (OS.COMCTL32_MAJOR >= 6) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + int hwndToolTip = OS.SendMessage (handle, OS.TCM_GETTOOLTIPS, 0, 0); + if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, lpti) !is 0) { + if ((lpti.uFlags & OS.TTF_IDISHWND) is 0) { + OS.SendMessage (hwndToolTip, OS.TTM_DELTOOL, 0, lpti); + OS.SendMessage (hwndToolTip, OS.TTM_ADDTOOL, 0, lpti); + } + } + } + return result; +} + +LRESULT WM_NCHITTEST (int wParam, int lParam) { + LRESULT result = super.WM_NCHITTEST (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. The tab control implements + * WM_NCHITTEST to return HTCLIENT when the cursor + * is inside the tab buttons. This causes mouse + * events like WM_MOUSEMOVE to be delivered to the + * parent. Also, tool tips for the tab control are + * never invoked because tool tips rely on mouse + * events to be delivered to the window that wants + * to display the tool tip. The fix is to call the + * default window proc that returns HTCLIENT when + * the mouse is in the client area. + */ + int hittest = OS.DefWindowProc (handle, OS.WM_NCHITTEST, wParam, lParam); + return new LRESULT (hittest); +} + +LRESULT WM_NOTIFY (int wParam, int lParam) { + /* + * Feature in Windows. When the tab folder window + * proc processes WM_NOTIFY, it forwards this + * message to its parent. This is done so that + * children of this control that send this message + * type to their parent will notify not only + * this control but also the parent of this control, + * which is typically the application window and + * the window that is looking for the message. + * If the control did not forward the message, + * applications would have to subclass the control + * window to see the message. Because the control + * window is subclassed by DWT, the message + * is delivered twice, once by DWT and once when + * the message is forwarded by the window proc. + * The fix is to avoid calling the window proc + * for this control. + */ + LRESULT result = super.WM_NOTIFY (wParam, lParam); + if (result !is null) return result; + return LRESULT.ZERO; +} + +LRESULT WM_PARENTNOTIFY (int wParam, int lParam) { + LRESULT result = super.WM_PARENTNOTIFY (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. Windows does not explicitly set the orientation of + * the buddy control. Instead, the orientation is inherited when WS_EX_LAYOUTRTL + * is specified for the tab folder. This means that when both WS_EX_LAYOUTRTL + * and WS_EX_NOINHERITLAYOUT are specified for the tab folder, the buddy control + * will not be oriented correctly. The fix is to explicitly set the orientation + * for the buddy control. + * + * NOTE: WS_EX_LAYOUTRTL is not supported on Windows NT. + */ + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return result; + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + int code = wParam & 0xFFFF; + switch (code) { + case OS.WM_CREATE: { + int id = (wParam >> 16), hwnd = lParam; + if (id is ID_UPDOWN) { + int bits = OS.GetWindowLong (hwnd, OS.GWL_EXSTYLE); + OS.SetWindowLong (hwnd, OS.GWL_EXSTYLE, bits | OS.WS_EX_LAYOUTRTL); + } + break; + } + } + } + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + LRESULT result = super.WM_SIZE (wParam, lParam); + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the resize + * event. If this happens, end the processing of the + * Windows message by returning the result of the + * WM_SIZE message. + */ + if (isDisposed ()) return result; + int index = OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0); + if (index !is -1) { + TabItem item = items [index]; + Control control = item.control; + if (control !is null && !control.isDisposed ()) { + control.setBounds (getClientArea ()); + } + } + return result; +} + +LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) { + LRESULT result = super.WM_WINDOWPOSCHANGING (wParam, lParam); + if (result !is null) return result; + if (!OS.IsWindowVisible (handle)) return result; + WINDOWPOS lpwp = new WINDOWPOS (); + OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof); + if ((lpwp.flags & (OS.SWP_NOSIZE | OS.SWP_NOREDRAW)) !is 0) { + return result; + } + // TEMPORARY CODE +// if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { +// OS.InvalidateRect (handle, null, true); +// return result; +// } + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TCS_MULTILINE) !is 0) { + OS.InvalidateRect (handle, null, true); + return result; + } + RECT rect = new RECT (); + OS.SetRect (rect, 0, 0, lpwp.cx, lpwp.cy); + OS.SendMessage (handle, OS.WM_NCCALCSIZE, 0, rect); + int newWidth = rect.right - rect.left; + int newHeight = rect.bottom - rect.top; + OS.GetClientRect (handle, rect); + int oldWidth = rect.right - rect.left; + int oldHeight = rect.bottom - rect.top; + if (newWidth is oldWidth && newHeight is oldHeight) { + return result; + } + RECT inset = new RECT (); + OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 0, inset); + int marginX = -inset.right, marginY = -inset.bottom; + if (newWidth !is oldWidth) { + int left = oldWidth; + if (newWidth < oldWidth) left = newWidth; + OS.SetRect (rect, left - marginX, 0, newWidth, newHeight); + OS.InvalidateRect (handle, rect, true); + } + if (newHeight !is oldHeight) { + int bottom = oldHeight; + if (newHeight < oldHeight) bottom = newHeight; + if (newWidth < oldWidth) oldWidth -= marginX; + OS.SetRect (rect, 0, bottom - marginY, oldWidth, newHeight); + OS.InvalidateRect (handle, rect, true); + } + return result; +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + int code = hdr.code; + switch (code) { + case OS.TCN_SELCHANGE: + case OS.TCN_SELCHANGING: + TabItem item = null; + int index = OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0); + if (index !is -1) item = items [index]; + if (item !is null) { + Control control = item.control; + if (control !is null && !control.isDisposed ()) { + if (code is OS.TCN_SELCHANGE) { + control.setBounds (getClientArea ()); + } + control.setVisible (code is OS.TCN_SELCHANGE); + } + } + if (code is OS.TCN_SELCHANGE) { + Event event = new Event (); + event.item = item; + postEvent (DWT.Selection, event); + } + } + return super.wmNotifyChild (hdr, wParam, lParam); +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/TabItem.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,344 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.TabItem; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class TabItem : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ + +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Image; +import dwt.internal.win32.OS; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TCITEM; + +/** + * Instances of this class represent a selectable user interface object + * corresponding to a tab for a page in a tab folder. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class TabItem extends Item { + TabFolder parent; + Control control; + String toolTipText; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>TabFolder</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TabItem (TabFolder parent, int style) { + super (parent, style); + this.parent = parent; + parent.createItem (this, parent.getItemCount ()); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>TabFolder</code>), a style value + * describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TabItem (TabFolder parent, int style, int index) { + super (parent, style); + this.parent = parent; + parent.createItem (this, index); +} + +void _setText (int index, String string) { + /* + * Bug in Windows. In version 6.00 of COMCTL32.DLL, tab + * items with an image and a label that includes '&' cause + * the tab to draw incorrectly (even when doubled '&&'). + * The image overlaps the label. The fix is to remove + * all '&' characters from the string. + */ + if (OS.COMCTL32_MAJOR >= 6 && image !is null) { + if (string.indexOf ('&') !is -1) { + int length = string.length (); + char[] text = new char [length]; + string.getChars ( 0, length, text, 0); + int i = 0, j = 0; + for (i=0; i<length; i++) { + if (text[i] !is '&') text [j++] = text [i]; + } + if (j < i) string = new String (text, 0, j); + } + } + int hwnd = parent.handle; + int hHeap = OS.GetProcessHeap (); + TCHAR buffer = new TCHAR (parent.getCodePage (), string, true); + int byteCount = buffer.length () * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + TCITEM tcItem = new TCITEM (); + tcItem.mask = OS.TCIF_TEXT; + tcItem.pszText = pszText; + OS.SendMessage (hwnd, OS.TCM_SETITEM, index, tcItem); + OS.HeapFree (hHeap, 0, pszText); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +/** + * Returns the control that is used to fill the client area of + * the tab folder when the user selects the tab item. If no + * control has been set, return <code>null</code>. + * <p> + * @return the control + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Control getControl () { + checkWidget(); + return control; +} + +/** + * Returns the receiver's parent, which must be a <code>TabFolder</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TabFolder getParent () { + checkWidget(); + return parent; +} + +/** + * Returns the receiver's tool tip text, or null if it has + * not been set. + * + * @return the receiver's tool tip text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getToolTipText () { + checkWidget(); + return toolTipText; +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; +} + +void releaseParent () { + super.releaseParent (); + int index = parent.indexOf (this); + if (index is parent.getSelectionIndex ()) { + if (control !is null) control.setVisible (false); + } +} + +void releaseWidget () { + super.releaseWidget (); + control = null; +} + +/** + * Sets the control that is used to fill the client area of + * the tab folder when the user selects the tab item. + * <p> + * @param control the new control (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> + * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setControl (Control control) { + checkWidget(); + if (control !is null) { + if (control.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + if (control.parent !is parent) error (DWT.ERROR_INVALID_PARENT); + } + if (this.control !is null && this.control.isDisposed ()) { + this.control = null; + } + Control oldControl = this.control, newControl = control; + this.control = control; + int index = parent.indexOf (this); + if (index !is parent.getSelectionIndex ()) { + if (newControl !is null) newControl.setVisible (false); + return; + } + if (newControl !is null) { + newControl.setBounds (parent.getClientArea ()); + newControl.setVisible (true); + } + if (oldControl !is null) oldControl.setVisible (false); +} + +public void setImage (Image image) { + checkWidget(); + int index = parent.indexOf (this); + if (index is -1) return; + super.setImage (image); + /* + * Bug in Windows. In version 6.00 of COMCTL32.DLL, tab + * items with an image and a label that includes '&' cause + * the tab to draw incorrectly (even when doubled '&&'). + * The image overlaps the label. The fix is to remove + * all '&' characters from the string and set the text + * whenever the image or text is changed. + */ + if (OS.COMCTL32_MAJOR >= 6) { + if (text.indexOf ('&') !is -1) _setText (index, text); + } + int hwnd = parent.handle; + TCITEM tcItem = new TCITEM (); + tcItem.mask = OS.TCIF_IMAGE; + tcItem.iImage = parent.imageIndex (image); + OS.SendMessage (hwnd, OS.TCM_SETITEM, index, tcItem); +} +/** + * Sets the receiver's text. The string may include + * the mnemonic character. + * </p> + * <p> + * Mnemonics are indicated by an '&' that causes the next + * character to be the mnemonic. When the user presses a + * key sequence that matches the mnemonic, a selection + * event occurs. On most platforms, the mnemonic appears + * underlined but may be emphasised in a platform specific + * manner. The mnemonic indicator character '&' can be + * escaped by doubling it in the string, causing a single + * '&' to be displayed. + * </p> + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + */ +public void setText (String string) { + checkWidget(); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if (string.equals (text)) return; + int index = parent.indexOf (this); + if (index is -1) return; + super.setText (string); + _setText (index, string); +} + +/** + * Sets the receiver's tool tip text to the argument, which + * may be null indicating that no tool tip text should be shown. + * + * @param string the new tool tip text (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setToolTipText (String string) { + checkWidget(); + toolTipText = string; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Table.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,6147 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Table; + +import dwt.widgets.Composite; +class Table : Composite { +} +/++ + +//import java.util.*; + +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Font; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.ImageList; +import dwt.internal.win32.HDHITTESTINFO; +import dwt.internal.win32.HDITEM; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.LVCOLUMN; +import dwt.internal.win32.LVHITTESTINFO; +import dwt.internal.win32.LVITEM; +import dwt.internal.win32.MEASUREITEMSTRUCT; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.NMHEADER; +import dwt.internal.win32.NMLISTVIEW; +import dwt.internal.win32.NMLVCUSTOMDRAW; +import dwt.internal.win32.NMLVDISPINFO; +import dwt.internal.win32.NMLVODSTATECHANGE; +import dwt.internal.win32.NMRGINFO; +import dwt.internal.win32.NMTTDISPINFO; +import dwt.internal.win32.OS; +import dwt.internal.win32.PAINTSTRUCT; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SCROLLINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; +import dwt.internal.win32.TOOLINFO; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class implement a selectable user interface + * object that displays a list of images and strings and issues + * notification when selected. + * <p> + * The item children that may be added to instances of this class + * must be of type <code>TableItem</code>. + * </p><p> + * Style <code>VIRTUAL</code> is used to create a <code>Table</code> whose + * <code>TableItem</code>s are to be populated by the client on an on-demand basis + * instead of up-front. This can provide significant performance improvements for + * tables that are very large or for which <code>TableItem</code> population is + * expensive (for example, retrieving values from an external source). + * </p><p> + * Here is an example of using a <code>Table</code> with style <code>VIRTUAL</code>: + * <code><pre> + * final Table table = new Table (parent, DWT.VIRTUAL | DWT.BORDER); + * table.setItemCount (1000000); + * table.addListener (DWT.SetData, new Listener () { + * public void handleEvent (Event event) { + * TableItem item = (TableItem) event.item; + * int index = table.indexOf (item); + * item.setText ("Item " + index); + * System.out.println (item.getText ()); + * } + * }); + * </pre></code> + * </p><p> + * Note that although this class is a subclass of <code>Composite</code>, + * it does not make sense to add <code>Control</code> children to it, + * or set a layout on it. + * </p><p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>SINGLE, MULTI, CHECK, FULL_SELECTION, HIDE_SELECTION, VIRTUAL</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection, DefaultSelection, SetData, MeasureItem, EraseItem, PaintItem</dd> + * </dl> + * </p><p> + * Note: Only one of the styles SINGLE, and MULTI may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class Table extends Composite { + TableItem [] items; + TableColumn [] columns; + int columnCount, customCount; + ImageList imageList, headerImageList; + TableItem currentItem; + TableColumn sortColumn; + bool ignoreCustomDraw, ignoreDrawForeground, ignoreDrawBackground, ignoreDrawFocus, ignoreDrawSelection, ignoreDrawHot; + bool customDraw, dragStarted, explorerTheme, firstColumnImage, fixScrollWidth, tipRequested, wasSelected, wasResized; + bool ignoreActivate, ignoreSelect, ignoreShrink, ignoreResize, ignoreColumnMove, ignoreColumnResize; + int headerToolTipHandle, itemHeight, lastIndexOf, lastWidth, sortDirection, resizeCount, selectionForeground, hotIndex; + static /*final*/ int HeaderProc; + static final int INSET = 4; + static final int GRID_WIDTH = 1; + static final int SORT_WIDTH = 10; + static final int HEADER_MARGIN = 12; + static final int HEADER_EXTRA = 3; + static final int VISTA_EXTRA = 2; + static final int EXPLORER_EXTRA = 2; + static final bool EXPLORER_THEME = true; + static final int TableProc; + static final TCHAR TableClass = new TCHAR (0, OS.WC_LISTVIEW, true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, TableClass, lpWndClass); + TableProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#SINGLE + * @see DWT#MULTI + * @see DWT#CHECK + * @see DWT#FULL_SELECTION + * @see DWT#HIDE_SELECTION + * @see DWT#VIRTUAL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Table (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +void _addListener (int eventType, Listener listener) { + super._addListener (eventType, listener); + switch (eventType) { + case DWT.MeasureItem: + case DWT.EraseItem: + case DWT.PaintItem: + setCustomDraw (true); + setBackgroundTransparent (true); + if (OS.COMCTL32_MAJOR < 6) style |= DWT.DOUBLE_BUFFERED; + //TODO - LVS_EX_LABELTIP causes white rectangles (turn it off) + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_LABELTIP, 0); + break; + } +} + +TableItem _getItem (int index) { + if ((style & DWT.VIRTUAL) is 0) return items [index]; + if (items [index] !is null) return items [index]; + return items [index] = new TableItem (this, DWT.NONE, -1, false); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the user changes the receiver's selection, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called, the item field of the event object is valid. + * If the receiver has the <code>DWT.CHECK</code> style and the check selection changes, + * the event object detail field contains the value <code>DWT.CHECK</code>. + * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. + * The item field of the event object is valid for default selection, but the detail field is not used. + * </p> + * + * @param listener the listener which should be notified when the user changes the receiver's selection + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + return callWindowProc (hwnd, msg, wParam, lParam, false); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam, bool forceSelect) { + if (handle is 0) return 0; + if (handle !is hwnd) { + return OS.CallWindowProc (HeaderProc, hwnd, msg, wParam, lParam); + } + int topIndex = 0; + bool checkSelection = false, checkActivate = false, redraw = false; + switch (msg) { + /* Keyboard messages */ + /* + * Feature in Windows. Windows sends LVN_ITEMACTIVATE from WM_KEYDOWN + * instead of WM_CHAR. This means that application code that expects + * to consume the key press and therefore avoid a DWT.DefaultSelection + * event will fail. The fix is to ignore LVN_ITEMACTIVATE when it is + * caused by WM_KEYDOWN and send DWT.DefaultSelection from WM_CHAR. + */ + case OS.WM_KEYDOWN: + checkActivate = true; + //FALL THROUGH + case OS.WM_CHAR: + case OS.WM_IME_CHAR: + case OS.WM_KEYUP: + case OS.WM_SYSCHAR: + case OS.WM_SYSKEYDOWN: + case OS.WM_SYSKEYUP: + //FALL THROUGH + + /* Scroll messages */ + case OS.WM_HSCROLL: + case OS.WM_VSCROLL: + //FALL THROUGH + + /* Resize messages */ + case OS.WM_WINDOWPOSCHANGED: + redraw = findImageControl () !is null && drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + //FALL THROUGH + + /* Mouse messages */ + case OS.WM_LBUTTONDBLCLK: + case OS.WM_LBUTTONDOWN: + case OS.WM_LBUTTONUP: + case OS.WM_MBUTTONDBLCLK: + case OS.WM_MBUTTONDOWN: + case OS.WM_MBUTTONUP: + case OS.WM_MOUSEHOVER: + case OS.WM_MOUSELEAVE: + case OS.WM_MOUSEMOVE: + case OS.WM_MOUSEWHEEL: + case OS.WM_RBUTTONDBLCLK: + case OS.WM_RBUTTONDOWN: + case OS.WM_RBUTTONUP: + case OS.WM_XBUTTONDBLCLK: + case OS.WM_XBUTTONDOWN: + case OS.WM_XBUTTONUP: + checkSelection = true; + //FALL THROUGH + + /* Other messages */ + case OS.WM_SETFONT: + case OS.WM_TIMER: { + if (findImageControl () !is null) { + topIndex = OS.SendMessage (handle, OS.LVM_GETTOPINDEX, 0, 0); + } + } + } + bool oldSelected = wasSelected; + if (checkSelection) wasSelected = false; + if (checkActivate) ignoreActivate = true; + int code = OS.CallWindowProc (TableProc, hwnd, msg, wParam, lParam); + if (checkActivate) ignoreActivate = false; + if (checkSelection) { + if (wasSelected || forceSelect) { + Event event = new Event (); + int index = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); + if (index !is -1) event.item = _getItem (index); + postEvent (DWT.Selection, event); + } + wasSelected = oldSelected; + } + switch (msg) { + /* Keyboard messages */ + case OS.WM_KEYDOWN: + case OS.WM_CHAR: + case OS.WM_IME_CHAR: + case OS.WM_KEYUP: + case OS.WM_SYSCHAR: + case OS.WM_SYSKEYDOWN: + case OS.WM_SYSKEYUP: + //FALL THROUGH + + /* Scroll messages */ + case OS.WM_HSCROLL: + case OS.WM_VSCROLL: + //FALL THROUGH + + /* Resize messages */ + case OS.WM_WINDOWPOSCHANGED: + if (redraw) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, null, true); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader !is 0) OS.InvalidateRect (hwndHeader, null, true); + } + //FALL THROUGH + + /* Mouse messages */ + case OS.WM_LBUTTONDBLCLK: + case OS.WM_LBUTTONDOWN: + case OS.WM_LBUTTONUP: + case OS.WM_MBUTTONDBLCLK: + case OS.WM_MBUTTONDOWN: + case OS.WM_MBUTTONUP: + case OS.WM_MOUSEHOVER: + case OS.WM_MOUSELEAVE: + case OS.WM_MOUSEMOVE: + case OS.WM_MOUSEWHEEL: + case OS.WM_RBUTTONDBLCLK: + case OS.WM_RBUTTONDOWN: + case OS.WM_RBUTTONUP: + case OS.WM_XBUTTONDBLCLK: + case OS.WM_XBUTTONDOWN: + case OS.WM_XBUTTONUP: + //FALL THROUGH + + /* Other messages */ + case OS.WM_SETFONT: + case OS.WM_TIMER: { + if (findImageControl () !is null) { + if (topIndex !is OS.SendMessage (handle, OS.LVM_GETTOPINDEX, 0, 0)) { + OS.InvalidateRect (handle, null, true); + } + } + } + } + return code; +} + +static int checkStyle (int style) { + /* + * Feature in Windows. It is not possible to create + * a table that does not have scroll bars. Therefore, + * no matter what style bits are specified, set the + * H_SCROLL and V_SCROLL bits so that the DWT style + * will match the widget that Windows creates. + */ + style |= DWT.H_SCROLL | DWT.V_SCROLL; + return checkBits (style, DWT.SINGLE, DWT.MULTI, 0, 0, 0, 0); +} + +LRESULT CDDS_ITEMPOSTPAINT (NMLVCUSTOMDRAW nmcd, int wParam, int lParam) { + int hDC = nmcd.hdc; + if (explorerTheme && !ignoreCustomDraw) { + hotIndex = -1; + if (hooks (DWT.EraseItem) && nmcd.left !is nmcd.right) { + OS.RestoreDC (hDC, -1); + } + } + /* + * Bug in Windows. When the table has the extended style + * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with + * CLR_NONE to make the table transparent, Windows fills + * a black rectangle around any column that contains an + * image. The fix is clear LVS_EX_FULLROWSELECT during + * custom draw. + * + * NOTE: Since CDIS_FOCUS is cleared during custom draw, + * it is necessary to draw the focus rectangle after the + * item has been drawn. + */ + if (!ignoreCustomDraw && !ignoreDrawFocus && nmcd.left !is nmcd.right) { + if (OS.IsWindowVisible (handle) && OS.IsWindowEnabled (handle)) { + if (!explorerTheme && (style & DWT.FULL_SELECTION) !is 0) { + if (OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0) is OS.CLR_NONE) { + int dwExStyle = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((dwExStyle & OS.LVS_EX_FULLROWSELECT) is 0) { +// if ((nmcd.uItemState & OS.CDIS_FOCUS) !is 0) { + if (OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED) is nmcd.dwItemSpec) { + if (handle is OS.GetFocus ()) { + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((uiState & OS.UISF_HIDEFOCUS) is 0) { + RECT rect = new RECT (); + rect.left = OS.LVIR_BOUNDS; + bool oldIgnore = ignoreCustomDraw; + ignoreCustomDraw = true; + OS.SendMessage (handle, OS. LVM_GETITEMRECT, nmcd.dwItemSpec, rect); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + int index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); + RECT itemRect = new RECT (); + if (index is 0) { + itemRect.left = OS.LVIR_LABEL; + OS.SendMessage (handle, OS. LVM_GETITEMRECT, index, itemRect); + } else { + itemRect.top = index; + itemRect.left = OS.LVIR_ICON; + OS.SendMessage (handle, OS. LVM_GETSUBITEMRECT, nmcd.dwItemSpec, itemRect); + } + ignoreCustomDraw = oldIgnore; + rect.left = itemRect.left; + OS.DrawFocusRect (nmcd.hdc, rect); + } + } + } + } + } + } + } + } + return null; +} + +LRESULT CDDS_ITEMPREPAINT (NMLVCUSTOMDRAW nmcd, int wParam, int lParam) { + /* + * Bug in Windows. When the table has the extended style + * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with + * CLR_NONE to make the table transparent, Windows fills + * a black rectangle around any column that contains an + * image. The fix is clear LVS_EX_FULLROWSELECT during + * custom draw. + * + * NOTE: It is also necessary to clear CDIS_FOCUS to stop + * the table from drawing the focus rectangle around the + * first item instead of the full row. + */ + if (!ignoreCustomDraw) { + if (OS.IsWindowVisible (handle) && OS.IsWindowEnabled (handle)) { + if (!explorerTheme && (style & DWT.FULL_SELECTION) !is 0) { + if (OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0) is OS.CLR_NONE) { + int dwExStyle = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((dwExStyle & OS.LVS_EX_FULLROWSELECT) is 0) { + if ((nmcd.uItemState & OS.CDIS_FOCUS) !is 0) { + nmcd.uItemState &= ~OS.CDIS_FOCUS; + OS.MoveMemory (lParam, nmcd, NMLVCUSTOMDRAW.sizeof); + } + } + } + } + } + } + if (explorerTheme && !ignoreCustomDraw) { + hotIndex = (nmcd.uItemState & OS.CDIS_HOT) !is 0 ? nmcd.dwItemSpec : -1; + if (hooks (DWT.EraseItem) && nmcd.left !is nmcd.right) { + OS.SaveDC (nmcd.hdc); + int hrgn = OS.CreateRectRgn (0, 0, 0, 0); + OS.SelectClipRgn (nmcd.hdc, hrgn); + OS.DeleteObject (hrgn); + } + } + return new LRESULT (OS.CDRF_NOTIFYSUBITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT); +} + +LRESULT CDDS_POSTPAINT (NMLVCUSTOMDRAW nmcd, int wParam, int lParam) { + if (ignoreCustomDraw) return null; + /* + * Bug in Windows. When the table has the extended style + * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with + * CLR_NONE to make the table transparent, Windows fills + * a black rectangle around any column that contains an + * image. The fix is clear LVS_EX_FULLROWSELECT during + * custom draw. + */ + if (--customCount is 0 && OS.IsWindowVisible (handle)) { + if (!explorerTheme && (style & DWT.FULL_SELECTION) !is 0) { + if (OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0) is OS.CLR_NONE) { + int dwExStyle = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((dwExStyle & OS.LVS_EX_FULLROWSELECT) is 0) { + int bits = OS.LVS_EX_FULLROWSELECT; + if (OS.IsWinCE) { + RECT rect = new RECT (); + bool damaged = OS.GetUpdateRect (handle, rect, true); + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, bits); + OS.ValidateRect (handle, null); + if (damaged) OS.InvalidateRect (handle, rect, true); + } else { + int rgn = OS.CreateRectRgn (0, 0, 0, 0); + int result = OS.GetUpdateRgn (handle, rgn, true); + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, bits); + OS.ValidateRect (handle, null); + if (result !is OS.NULLREGION) OS.InvalidateRgn (handle, rgn, true); + OS.DeleteObject (rgn); + } + } + } + } + } + return null; +} + +LRESULT CDDS_PREPAINT (NMLVCUSTOMDRAW nmcd, int wParam, int lParam) { + if (ignoreCustomDraw) { + return new LRESULT (OS.CDRF_NOTIFYITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT); + } + /* + * Bug in Windows. When the table has the extended style + * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with + * CLR_NONE to make the table transparent, Windows fills + * a black rectangle around any column that contains an + * image. The fix is clear LVS_EX_FULLROWSELECT during + * custom draw. + */ + if (customCount++ is 0 && OS.IsWindowVisible (handle)) { + if (!explorerTheme && (style & DWT.FULL_SELECTION) !is 0) { + if (OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0) is OS.CLR_NONE) { + int dwExStyle = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((dwExStyle & OS.LVS_EX_FULLROWSELECT) !is 0) { + int bits = OS.LVS_EX_FULLROWSELECT; + if (OS.IsWinCE) { + RECT rect = new RECT (); + bool damaged = OS.GetUpdateRect (handle, rect, true); + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, 0); + OS.ValidateRect (handle, null); + if (damaged) OS.InvalidateRect (handle, rect, true); + } else { + int rgn = OS.CreateRectRgn (0, 0, 0, 0); + int result = OS.GetUpdateRgn (handle, rgn, true); + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, 0); + OS.ValidateRect (handle, null); + if (result !is OS.NULLREGION) OS.InvalidateRgn (handle, rgn, true); + OS.DeleteObject (rgn); + } + } + } + } + } + if (OS.IsWindowVisible (handle)) { + bool draw = true; + /* + * Feature in Windows. On Vista using the explorer theme, + * Windows draws a vertical line to separate columns. When + * there is only a single column, the line looks strange. + * The fix is to draw the background using custom draw. + */ + if (explorerTheme && columnCount is 0) { + int hDC = nmcd.hdc; + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if (OS.IsWindowEnabled (handle) || findImageControl () !is null) { + drawBackground (hDC, rect); + } else { + fillBackground (hDC, OS.GetSysColor (OS.COLOR_3DFACE), rect); + } + draw = false; + } + if (draw) { + Control control = findBackgroundControl (); + if (control !is null && control.backgroundImage !is null) { + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + fillImageBackground (nmcd.hdc, control, rect); + } else { + if (OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0) is OS.CLR_NONE) { + if (OS.IsWindowEnabled (handle)) { + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if (control is null) control = this; + fillBackground (nmcd.hdc, control.getBackgroundPixel (), rect); + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (sortColumn !is null && sortDirection !is DWT.NONE) { + int index = indexOf (sortColumn); + if (index !is -1) { + parent.forceResize (); + int clrSortBk = getSortColumnPixel (); + RECT columnRect = new RECT (), headerRect = new RECT (); + OS.GetClientRect (handle, columnRect); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect) !is 0) { + OS.MapWindowPoints (hwndHeader, handle, headerRect, 2); + columnRect.left = headerRect.left; + columnRect.right = headerRect.right; + if (OS.IntersectRect(columnRect, columnRect, rect)) { + fillBackground (nmcd.hdc, clrSortBk, columnRect); + } + } + } + } + } + } + } + } + } + } + return new LRESULT (OS.CDRF_NOTIFYITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT); +} + +LRESULT CDDS_SUBITEMPOSTPAINT (NMLVCUSTOMDRAW nmcd, int wParam, int lParam) { + if (ignoreCustomDraw) return null; + if (nmcd.left is nmcd.right) return new LRESULT (OS.CDRF_DODEFAULT); + int hDC = nmcd.hdc; + if (ignoreDrawForeground) OS.RestoreDC (hDC, -1); + if (OS.IsWindowVisible (handle)) { + /* + * Feature in Windows. When there is a sort column, the sort column + * color draws on top of the background color for an item. The fix + * is to clear the sort column in CDDS_SUBITEMPREPAINT, and reset it + * in CDDS_SUBITEMPOSTPAINT. + */ + if (OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0) !is OS.CLR_NONE) { + if ((sortDirection & (DWT.UP | DWT.DOWN)) !is 0) { + if (sortColumn !is null && !sortColumn.isDisposed ()) { + int oldColumn = OS.SendMessage (handle, OS.LVM_GETSELECTEDCOLUMN, 0, 0); + if (oldColumn is -1) { + int newColumn = indexOf (sortColumn); + int result = 0, rgn = 0; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + rgn = OS.CreateRectRgn (0, 0, 0, 0); + result = OS.GetUpdateRgn (handle, rgn, true); + } + OS.SendMessage (handle, OS.LVM_SETSELECTEDCOLUMN, newColumn, 0); + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + OS.ValidateRect (handle, null); + if (result !is OS.NULLREGION) OS.InvalidateRgn (handle, rgn, true); + OS.DeleteObject (rgn); + } + } + } + } + } + if (hooks (DWT.PaintItem)) { + TableItem item = _getItem (nmcd.dwItemSpec); + sendPaintItemEvent (item, nmcd); + //widget could be disposed at this point + } + } + return null; +} + +LRESULT CDDS_SUBITEMPREPAINT (NMLVCUSTOMDRAW nmcd, int wParam, int lParam) { + int hDC = nmcd.hdc; + if (explorerTheme && !ignoreCustomDraw && hooks (DWT.EraseItem) && (nmcd.left !is nmcd.right)) { + OS.RestoreDC (hDC, -1); + } + /* + * Feature in Windows. When a new table item is inserted + * using LVM_INSERTITEM in a table that is transparent + * (ie. LVM_SETBKCOLOR has been called with CLR_NONE), + * TVM_INSERTITEM calls NM_CUSTOMDRAW before the new item + * has been added to the array. The fix is to check for + * null. + */ + TableItem item = _getItem (nmcd.dwItemSpec); + if (item is null) return null; + int hFont = item.cellFont !is null ? item.cellFont [nmcd.iSubItem] : -1; + if (hFont is -1) hFont = item.font; + if (hFont !is -1) OS.SelectObject (hDC, hFont); + if (ignoreCustomDraw || (nmcd.left is nmcd.right)) { + return new LRESULT (hFont is -1 ? OS.CDRF_DODEFAULT : OS.CDRF_NEWFONT); + } + int code = OS.CDRF_DODEFAULT; + selectionForeground = -1; + ignoreDrawForeground = ignoreDrawSelection = ignoreDrawFocus = ignoreDrawBackground = false; + if (OS.IsWindowVisible (handle)) { + if (hooks (DWT.MeasureItem)) { + sendMeasureItemEvent (item, nmcd.dwItemSpec, nmcd.iSubItem, nmcd.hdc); + if (isDisposed () || item.isDisposed ()) return null; + } + if (hooks (DWT.EraseItem)) { + sendEraseItemEvent (item, nmcd, lParam); + if (isDisposed () || item.isDisposed ()) return null; + code |= OS.CDRF_NOTIFYPOSTPAINT; + } + if (ignoreDrawForeground || hooks (DWT.PaintItem)) code |= OS.CDRF_NOTIFYPOSTPAINT; + } + int clrText = item.cellForeground !is null ? item.cellForeground [nmcd.iSubItem] : -1; + if (clrText is -1) clrText = item.foreground; + int clrTextBk = item.cellBackground !is null ? item.cellBackground [nmcd.iSubItem] : -1; + if (clrTextBk is -1) clrTextBk = item.background; + if (selectionForeground !is -1) clrText = selectionForeground; + /* + * Bug in Windows. When the table has the extended style + * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with + * CLR_NONE to make the table transparent, Windows draws + * a black rectangle around any column that contains an + * image. The fix is emulate LVS_EX_FULLROWSELECT by + * drawing the selection. + */ + if (OS.IsWindowVisible (handle) && OS.IsWindowEnabled (handle)) { + if (!explorerTheme && !ignoreDrawSelection && (style & DWT.FULL_SELECTION) !is 0) { + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_FULLROWSELECT) is 0) { + /* + * Bug in Windows. For some reason, CDIS_SELECTED always set, + * even for items that are not selected. The fix is to get + * the selection state from the item. + */ + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_STATE; + lvItem.stateMask = OS.LVIS_SELECTED; + lvItem.iItem = nmcd.dwItemSpec; + int result = OS.SendMessage (handle, OS.LVM_GETITEM, 0, lvItem); + if ((result !is 0 && (lvItem.state & OS.LVIS_SELECTED) !is 0)) { + int clrSelection = -1; + if (nmcd.iSubItem is 0) { + if (OS.GetFocus () is handle) { + clrSelection = OS.GetSysColor (OS.COLOR_HIGHLIGHT); + } else { + if ((style & DWT.HIDE_SELECTION) is 0) { + clrSelection = OS.GetSysColor (OS.COLOR_3DFACE); + } + } + } else { + if (OS.GetFocus () is handle) { + clrText = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT); + clrTextBk = clrSelection = OS.GetSysColor (OS.COLOR_HIGHLIGHT); + } else { + if ((style & DWT.HIDE_SELECTION) is 0) { + clrTextBk = clrSelection = OS.GetSysColor (OS.COLOR_3DFACE); + } + } + } + if (clrSelection !is -1) { + RECT rect = item.getBounds (nmcd.dwItemSpec, nmcd.iSubItem, true, nmcd.iSubItem !is 0, true, false, hDC); + fillBackground (hDC, clrSelection, rect); + } + } + } + } + } + if (!ignoreDrawForeground) { + /* + * Bug in Windows. When the attributes are for one cell in a table, + * Windows does not reset them for the next cell. As a result, all + * subsequent cells are drawn using the previous font, foreground and + * background colors. The fix is to set the all attributes when any + * attribute could have changed. + */ + bool hasAttributes = true; + if (hFont is -1 && clrText is -1 && clrTextBk is -1) { + if (item.cellForeground is null && item.cellBackground is null && item.cellFont is null) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (count is 1) hasAttributes = false; + } + } + if (hasAttributes) { + if (hFont is -1) hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + OS.SelectObject (hDC, hFont); + if (OS.IsWindowEnabled (handle)) { + nmcd.clrText = clrText is -1 ? getForegroundPixel () : clrText; + if (clrTextBk is -1) { + nmcd.clrTextBk = OS.CLR_NONE; + if (selectionForeground is -1) { + Control control = findBackgroundControl (); + if (control is null) control = this; + if (control.backgroundImage is null) { + if (OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0) !is OS.CLR_NONE) { + nmcd.clrTextBk = control.getBackgroundPixel (); + } + } + } + } else { + nmcd.clrTextBk = selectionForeground !is -1 ? OS.CLR_NONE : clrTextBk; + } + OS.MoveMemory (lParam, nmcd, NMLVCUSTOMDRAW.sizeof); + } + code |= OS.CDRF_NEWFONT; + } + } + if (OS.IsWindowEnabled (handle)) { + /* + * Feature in Windows. When there is a sort column, the sort column + * color draws on top of the background color for an item. The fix + * is to clear the sort column in CDDS_SUBITEMPREPAINT, and reset it + * in CDDS_SUBITEMPOSTPAINT. + */ + if (clrTextBk !is -1) { + int oldColumn = OS.SendMessage (handle, OS.LVM_GETSELECTEDCOLUMN, 0, 0); + if (oldColumn !is -1 && oldColumn is nmcd.iSubItem) { + int result = 0, rgn = 0; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + rgn = OS.CreateRectRgn (0, 0, 0, 0); + result = OS.GetUpdateRgn (handle, rgn, true); + } + OS.SendMessage (handle, OS.LVM_SETSELECTEDCOLUMN, -1, 0); + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + OS.ValidateRect (handle, null); + if (result !is OS.NULLREGION) OS.InvalidateRgn (handle, rgn, true); + OS.DeleteObject (rgn); + } + code |= OS.CDRF_NOTIFYPOSTPAINT; + } + } + } else { + /* + * Feature in Windows. When the table is disabled, it draws + * with a gray background but does not gray the text. The fix + * is to explicitly gray the text. + */ + nmcd.clrText = OS.GetSysColor (OS.COLOR_GRAYTEXT); + if (findImageControl () !is null) { + nmcd.clrTextBk = OS.CLR_NONE; + } else { + nmcd.clrTextBk = OS.GetSysColor (OS.COLOR_3DFACE); + } + nmcd.uItemState &= ~OS.CDIS_SELECTED; + OS.MoveMemory (lParam, nmcd, NMLVCUSTOMDRAW.sizeof); + code |= OS.CDRF_NEWFONT; + } + return new LRESULT (code); +} + +void checkBuffered () { + super.checkBuffered (); + if (OS.COMCTL32_MAJOR >= 6) style |= DWT.DOUBLE_BUFFERED; + if ((style & DWT.VIRTUAL) !is 0) style |= DWT.DOUBLE_BUFFERED; +} + +bool checkData (TableItem item, bool redraw) { + if ((style & DWT.VIRTUAL) is 0) return true; + return checkData (item, indexOf (item), redraw); +} + +bool checkData (TableItem item, int index, bool redraw) { + if ((style & DWT.VIRTUAL) is 0) return true; + if (!item.cached) { + item.cached = true; + Event event = new Event (); + event.item = item; + event.index = index; + currentItem = item; + sendEvent (DWT.SetData, event); + //widget could be disposed at this point + currentItem = null; + if (isDisposed () || item.isDisposed ()) return false; + if (redraw) { + if (!setScrollWidth (item, false)) { + item.redraw (); + } + } + } + return true; +} + +bool checkHandle (int hwnd) { + if (hwnd is handle) return true; + return hwnd is OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +/** + * Clears the item at the given zero-relative index in the receiver. + * The text, icon and other attributes of the item are set to the default + * value. If the table was created with the <code>DWT.VIRTUAL</code> style, + * these attributes are requested again as needed. + * + * @param index the index of the item to clear + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#VIRTUAL + * @see DWT#SetData + * + * @since 3.0 + */ +public void clear (int index) { + checkWidget (); + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index < count)) error (DWT.ERROR_INVALID_RANGE); + TableItem item = items [index]; + if (item !is null) { + if (item !is currentItem) item.clear (); + /* + * Bug in Windows. Despite the fact that every item in the + * table always has LPSTR_TEXTCALLBACK, Windows caches the + * bounds for the selected items. This means that + * when you change the string to be something else, Windows + * correctly asks you for the new string but when the item + * is selected, the selection draws using the bounds of the + * previous item. The fix is to reset LPSTR_TEXTCALLBACK + * even though it has not changed, causing Windows to flush + * cached bounds. + */ + if ((style & DWT.VIRTUAL) is 0 && item.cached) { + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT | OS.LVIF_INDENT; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + lvItem.iItem = index; + OS.SendMessage (handle, OS.LVM_SETITEM, 0, lvItem); + item.cached = false; + } + if (currentItem is null && drawCount is 0 && OS.IsWindowVisible (handle)) { + OS.SendMessage (handle, OS.LVM_REDRAWITEMS, index, index); + } + setScrollWidth (item, false); + } +} + +/** + * Removes the items from the receiver which are between the given + * zero-relative start and end indices (inclusive). The text, icon + * and other attributes of the items are set to their default values. + * If the table was created with the <code>DWT.VIRTUAL</code> style, + * these attributes are requested again as needed. + * + * @param start the start index of the item to clear + * @param end the end index of the item to clear + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#VIRTUAL + * @see DWT#SetData + * + * @since 3.0 + */ +public void clear (int start, int end) { + checkWidget (); + if (start > end) return; + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (!(0 <= start && start <= end && end < count)) { + error (DWT.ERROR_INVALID_RANGE); + } + if (start is 0 && end is count - 1) { + clearAll (); + } else { + LVITEM lvItem = null; + bool cleared = false; + for (int i=start; i<=end; i++) { + TableItem item = items [i]; + if (item !is null) { + if (item !is currentItem) { + cleared = true; + item.clear (); + } + /* + * Bug in Windows. Despite the fact that every item in the + * table always has LPSTR_TEXTCALLBACK, Windows caches the + * bounds for the selected items. This means that + * when you change the string to be something else, Windows + * correctly asks you for the new string but when the item + * is selected, the selection draws using the bounds of the + * previous item. The fix is to reset LPSTR_TEXTCALLBACK + * even though it has not changed, causing Windows to flush + * cached bounds. + */ + if ((style & DWT.VIRTUAL) is 0 && item.cached) { + if (lvItem is null) { + lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT | OS.LVIF_INDENT; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + } + lvItem.iItem = i; + OS.SendMessage (handle, OS.LVM_SETITEM, 0, lvItem); + item.cached = false; + } + } + } + if (cleared) { + if (currentItem is null && drawCount is 0 && OS.IsWindowVisible (handle)) { + OS.SendMessage (handle, OS.LVM_REDRAWITEMS, start, end); + } + TableItem item = start is end ? items [start] : null; + setScrollWidth (item, false); + } + } +} + +/** + * Clears the items at the given zero-relative indices in the receiver. + * The text, icon and other attributes of the items are set to their default + * values. If the table was created with the <code>DWT.VIRTUAL</code> style, + * these attributes are requested again as needed. + * + * @param indices the array of indices of the items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * <li>ERROR_NULL_ARGUMENT - if the indices array is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#VIRTUAL + * @see DWT#SetData + * + * @since 3.0 + */ +public void clear (int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + if (indices.length is 0) return; + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + for (int i=0; i<indices.length; i++) { + if (!(0 <= indices [i] && indices [i] < count)) { + error (DWT.ERROR_INVALID_RANGE); + } + } + LVITEM lvItem = null; + bool cleared = false; + for (int i=0; i<indices.length; i++) { + int index = indices [i]; + TableItem item = items [index]; + if (item !is null) { + if (item !is currentItem) { + cleared = true; + item.clear (); + } + /* + * Bug in Windows. Despite the fact that every item in the + * table always has LPSTR_TEXTCALLBACK, Windows caches the + * bounds for the selected items. This means that + * when you change the string to be something else, Windows + * correctly asks you for the new string but when the item + * is selected, the selection draws using the bounds of the + * previous item. The fix is to reset LPSTR_TEXTCALLBACK + * even though it has not changed, causing Windows to flush + * cached bounds. + */ + if ((style & DWT.VIRTUAL) is 0 && item.cached) { + if (lvItem is null) { + lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT | OS.LVIF_INDENT; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + } + lvItem.iItem = i; + OS.SendMessage (handle, OS.LVM_SETITEM, 0, lvItem); + item.cached = false; + } + if (currentItem is null && drawCount is 0 && OS.IsWindowVisible (handle)) { + OS.SendMessage (handle, OS.LVM_REDRAWITEMS, index, index); + } + } + } + if (cleared) setScrollWidth (null, false); +} + +/** + * Clears all the items in the receiver. The text, icon and other + * attributes of the items are set to their default values. If the + * table was created with the <code>DWT.VIRTUAL</code> style, these + * attributes are requested again as needed. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#VIRTUAL + * @see DWT#SetData + * + * @since 3.0 + */ +public void clearAll () { + checkWidget (); + LVITEM lvItem = null; + bool cleared = false; + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + TableItem item = items [i]; + if (item !is null) { + if (item !is currentItem) { + cleared = true; + item.clear (); + } + /* + * Bug in Windows. Despite the fact that every item in the + * table always has LPSTR_TEXTCALLBACK, Windows caches the + * bounds for the selected items. This means that + * when you change the string to be something else, Windows + * correctly asks you for the new string but when the item + * is selected, the selection draws using the bounds of the + * previous item. The fix is to reset LPSTR_TEXTCALLBACK + * even though it has not changed, causing Windows to flush + * cached bounds. + */ + if ((style & DWT.VIRTUAL) is 0 && item.cached) { + if (lvItem is null) { + lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT | OS.LVIF_INDENT; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + } + lvItem.iItem = i; + OS.SendMessage (handle, OS.LVM_SETITEM, 0, lvItem); + item.cached = false; + } + } + } + if (cleared) { + if (currentItem is null && drawCount is 0 && OS.IsWindowVisible (handle)) { + OS.SendMessage (handle, OS.LVM_REDRAWITEMS, 0, count - 1); + } + setScrollWidth (null, false); + } +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + if (fixScrollWidth) setScrollWidth (null, true); + //This code is intentionally commented +// if (itemHeight is -1 && hooks (DWT.MeasureItem)) { +// int i = 0; +// TableItem item = items [i]; +// if (item !is null) { +// int hDC = OS.GetDC (handle); +// int oldFont = 0, newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); +// if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); +// int index = 0, count = Math.max (1, columnCount); +// while (index < count) { +// int hFont = item.cellFont !is null ? item.cellFont [index] : -1; +// if (hFont is -1) hFont = item.font; +// if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); +// sendMeasureItemEvent (item, i, index, hDC); +// if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); +// if (isDisposed () || item.isDisposed ()) break; +// index++; +// } +// if (newFont !is 0) OS.SelectObject (hDC, oldFont); +// OS.ReleaseDC (handle, hDC); +// } +// } + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + RECT rect = new RECT (); + OS.GetWindowRect (hwndHeader, rect); + int height = rect.bottom - rect.top; + int bits = 0; + if (wHint !is DWT.DEFAULT) { + bits |= wHint & 0xFFFF; + } else { + int width = 0; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + width += OS.SendMessage (handle, OS.LVM_GETCOLUMNWIDTH, i, 0); + } + bits |= width & 0xFFFF; + } + int result = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, -1, bits | 0xFFFF0000); + int width = result & 0xFFFF; + int empty = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); + int oneItem = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); + int itemHeight = (oneItem >> 16) - (empty >> 16); + height += OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0) * itemHeight; + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + int border = getBorderWidth (); + width += border * 2; height += border * 2; + if ((style & DWT.V_SCROLL) !is 0) { + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + } + if ((style & DWT.H_SCROLL) !is 0) { + height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + state &= ~(CANVAS | THEME_BACKGROUND); + + /* Use the Explorer theme */ + if (EXPLORER_THEME) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + explorerTheme = true; + OS.SetWindowTheme (handle, Display.EXPLORER, null); + } + } + + /* Get the header window proc */ + if (HeaderProc is 0) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + HeaderProc = OS.GetWindowLong (hwndHeader, OS.GWL_WNDPROC); + } + + /* + * Feature in Windows. In version 5.8 of COMCTL32.DLL, + * if the font is changed for an item, the bounds for the + * item are not updated, causing the text to be clipped. + * The fix is to detect the version of COMCTL32.DLL, and + * if it is one of the versions with the problem, then + * use version 5.00 of the control (a version that does + * not have the problem). This is the recommended work + * around from the MSDN. + */ + if (!OS.IsWinCE) { + if (OS.COMCTL32_MAJOR < 6) { + OS.SendMessage (handle, OS.CCM_SETVERSION, 5, 0); + } + } + + /* + * This code is intentionally commented. According to + * the documentation, setting the default item size is + * supposed to improve performance. By experimentation, + * this does not seem to have much of an effect. + */ +// OS.SendMessage (handle, OS.LVM_SETITEMCOUNT, 1024 * 2, 0); + + /* Set the checkbox image list */ + if ((style & DWT.CHECK) !is 0) { + int empty = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); + int oneItem = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); + int width = (oneItem >> 16) - (empty >> 16), height = width; + setCheckboxImageList (width, height, false); + OS.SendMessage (handle, OS. LVM_SETCALLBACKMASK, OS.LVIS_STATEIMAGEMASK, 0); + } + + /* + * Feature in Windows. When the control is created, + * it does not use the default system font. A new HFONT + * is created and destroyed when the control is destroyed. + * This means that a program that queries the font from + * this control, uses the font in another control and then + * destroys this control will have the font unexpectedly + * destroyed in the other control. The fix is to assign + * the font ourselves each time the control is created. + * The control will not destroy a font that it did not + * create. + */ + int hFont = OS.GetStockObject (OS.SYSTEM_FONT); + OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0); + + /* + * Bug in Windows. When the first column is inserted + * without setting the header text, Windows will never + * allow the header text for the first column to be set. + * The fix is to set the text to an empty string when + * the column is inserted. + */ + LVCOLUMN lvColumn = new LVCOLUMN (); + lvColumn.mask = OS.LVCF_TEXT | OS.LVCF_WIDTH; + int hHeap = OS.GetProcessHeap (); + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, TCHAR.sizeof); + lvColumn.pszText = pszText; + OS.SendMessage (handle, OS.LVM_INSERTCOLUMN, 0, lvColumn); + OS.HeapFree (hHeap, 0, pszText); + + /* Set the extended style bits */ + int bits1 = OS.LVS_EX_LABELTIP; + if ((style & DWT.FULL_SELECTION) !is 0) bits1 |= OS.LVS_EX_FULLROWSELECT; + if (OS.COMCTL32_MAJOR >= 6) bits1 |= OS.LVS_EX_DOUBLEBUFFER; + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits1, bits1); + + /* + * Feature in Windows. Windows does not explicitly set the orientation of + * the header. Instead, the orientation is inherited when WS_EX_LAYOUTRTL + * is specified for the table. This means that when both WS_EX_LAYOUTRTL + * and WS_EX_NOINHERITLAYOUT are specified for the table, the header will + * not be oriented correctly. The fix is to explicitly set the orientation + * for the header. + * + * NOTE: WS_EX_LAYOUTRTL is not supported on Windows NT. + */ + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return; + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + int bits2 = OS.GetWindowLong (hwndHeader, OS.GWL_EXSTYLE); + OS.SetWindowLong (hwndHeader, OS.GWL_EXSTYLE, bits2 | OS.WS_EX_LAYOUTRTL); + } +} + +void createHeaderToolTips () { + if (OS.IsWinCE) return; + if (headerToolTipHandle !is 0) return; + headerToolTipHandle = OS.CreateWindowEx ( + 0, + new TCHAR (0, OS.TOOLTIPS_CLASS, true), + null, + 0, + OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0, + handle, + 0, + OS.GetModuleHandle (null), + null); + if (headerToolTipHandle is 0) error (DWT.ERROR_NO_HANDLES); + /* + * Feature in Windows. Despite the fact that the + * tool tip text contains \r\n, the tooltip will + * not honour the new line unless TTM_SETMAXTIPWIDTH + * is set. The fix is to set TTM_SETMAXTIPWIDTH to + * a large value. + */ + OS.SendMessage (headerToolTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); +} + +void createItem (TableColumn column, int index) { + if (!(0 <= index && index <= columnCount)) error (DWT.ERROR_INVALID_RANGE); + int oldColumn = OS.SendMessage (handle, OS.LVM_GETSELECTEDCOLUMN, 0, 0); + if (oldColumn >= index) { + OS.SendMessage (handle, OS.LVM_SETSELECTEDCOLUMN, oldColumn + 1, 0); + } + if (columnCount is columns.length) { + TableColumn [] newColumns = new TableColumn [columns.length + 4]; + System.arraycopy (columns, 0, newColumns, 0, columns.length); + columns = newColumns; + } + int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + for (int i=0; i<itemCount; i++) { + TableItem item = items [i]; + if (item !is null) { + String [] strings = item.strings; + if (strings !is null) { + String [] temp = new String [columnCount + 1]; + System.arraycopy (strings, 0, temp, 0, index); + System.arraycopy (strings, index, temp, index + 1, columnCount - index); + item.strings = temp; + } + Image [] images = item.images; + if (images !is null) { + Image [] temp = new Image [columnCount + 1]; + System.arraycopy (images, 0, temp, 0, index); + System.arraycopy (images, index, temp, index + 1, columnCount - index); + item.images = temp; + } + if (index is 0) { + if (columnCount !is 0) { + if (strings is null) { + item.strings = new String [columnCount + 1]; + item.strings [1] = item.text; + } + item.text = ""; //$NON-NLS-1$ + if (images is null) { + item.images = new Image [columnCount + 1]; + item.images [1] = item.image; + } + item.image = null; + } + } + if (item.cellBackground !is null) { + int [] cellBackground = item.cellBackground; + int [] temp = new int [columnCount + 1]; + System.arraycopy (cellBackground, 0, temp, 0, index); + System.arraycopy (cellBackground, index, temp, index + 1, columnCount - index); + temp [index] = -1; + item.cellBackground = temp; + } + if (item.cellForeground !is null) { + int [] cellForeground = item.cellForeground; + int [] temp = new int [columnCount + 1]; + System.arraycopy (cellForeground, 0, temp, 0, index); + System.arraycopy (cellForeground, index, temp, index + 1, columnCount - index); + temp [index] = -1; + item.cellForeground = temp; + } + if (item.cellFont !is null) { + int [] cellFont = item.cellFont; + int [] temp = new int [columnCount + 1]; + System.arraycopy (cellFont, 0, temp, 0, index); + System.arraycopy (cellFont, index, temp, index + 1, columnCount - index); + temp [index] = -1; + item.cellFont = temp; + } + } + } + /* + * Insert the column into the columns array before inserting + * it into the widget so that the column will be present when + * any callbacks are issued as a result of LVM_INSERTCOLUMN + * or LVM_SETCOLUMN. + */ + System.arraycopy (columns, index, columns, index + 1, columnCount++ - index); + columns [index] = column; + + /* + * Ensure that resize listeners for the table and for columns + * within the table are not called. This can happen when the + * first column is inserted into a table or when a new column + * is inserted in the first position. + */ + ignoreColumnResize = true; + if (index is 0) { + if (columnCount > 1) { + LVCOLUMN lvColumn = new LVCOLUMN (); + lvColumn.mask = OS.LVCF_WIDTH; + OS.SendMessage (handle, OS.LVM_INSERTCOLUMN, 1, lvColumn); + OS.SendMessage (handle, OS.LVM_GETCOLUMN, 1, lvColumn); + int width = lvColumn.cx; + int cchTextMax = 1024; + int hHeap = OS.GetProcessHeap (); + int byteCount = cchTextMax * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + lvColumn.mask = OS.LVCF_TEXT | OS.LVCF_IMAGE | OS.LVCF_WIDTH | OS.LVCF_FMT; + lvColumn.pszText = pszText; + lvColumn.cchTextMax = cchTextMax; + OS.SendMessage (handle, OS.LVM_GETCOLUMN, 0, lvColumn); + OS.SendMessage (handle, OS.LVM_SETCOLUMN, 1, lvColumn); + lvColumn.fmt = OS.LVCFMT_IMAGE; + lvColumn.cx = width; + lvColumn.iImage = OS.I_IMAGENONE; + lvColumn.pszText = lvColumn.cchTextMax = 0; + OS.SendMessage (handle, OS.LVM_SETCOLUMN, 0, lvColumn); + lvColumn.mask = OS.LVCF_FMT; + lvColumn.fmt = OS.LVCFMT_LEFT; + OS.SendMessage (handle, OS.LVM_SETCOLUMN, 0, lvColumn); + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + } else { + OS.SendMessage (handle, OS.LVM_SETCOLUMNWIDTH, 0, 0); + } + if ((parent.style & DWT.VIRTUAL) is 0) { + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT | OS.LVIF_IMAGE; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + lvItem.iImage = OS.I_IMAGECALLBACK; + for (int i=0; i<itemCount; i++) { + lvItem.iItem = i; + OS.SendMessage (handle, OS.LVM_SETITEM, 0, lvItem); + } + } + } else { + int fmt = OS.LVCFMT_LEFT; + if ((column.style & DWT.CENTER) is DWT.CENTER) fmt = OS.LVCFMT_CENTER; + if ((column.style & DWT.RIGHT) is DWT.RIGHT) fmt = OS.LVCFMT_RIGHT; + LVCOLUMN lvColumn = new LVCOLUMN (); + lvColumn.mask = OS.LVCF_WIDTH | OS.LVCF_FMT; + lvColumn.fmt = fmt; + OS.SendMessage (handle, OS.LVM_INSERTCOLUMN, index, lvColumn); + } + ignoreColumnResize = false; + + /* Add the tool tip item for the header */ + if (headerToolTipHandle !is 0) { + RECT rect = new RECT (); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, rect) !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.uFlags = OS.TTF_SUBCLASS; + lpti.hwnd = hwndHeader; + lpti.uId = column.id = display.nextToolTipId++; + lpti.left = rect.left; + lpti.top = rect.top; + lpti.right = rect.right; + lpti.bottom = rect.bottom; + lpti.lpszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (headerToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); + } + } +} + +void createItem (TableItem item, int index) { + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index <= count)) error (DWT.ERROR_INVALID_RANGE); + if (count is items.length) { + /* + * Grow the array faster when redraw is off or the + * table is not visible. When the table is painted, + * the items array is resized to be smaller to reduce + * memory usage. + */ + bool small = drawCount is 0 && OS.IsWindowVisible (handle); + int length = small ? items.length + 4 : Math.max (4, items.length * 3 / 2); + TableItem [] newItems = new TableItem [length]; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; + } + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT | OS.LVIF_IMAGE; + lvItem.iItem = index; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + /* + * Bug in Windows. Despite the fact that the image list + * index has never been set for the item, Windows always + * assumes that the image index for the item is valid. + * When an item is inserted, the image index is zero. + * Therefore, when the first image is inserted and is + * assigned image index zero, every item draws with this + * image. The fix is to set the image index when the + * the item is created. + */ + lvItem.iImage = OS.I_IMAGECALLBACK; + + /* Insert the item */ + setDeferResize (true); + ignoreSelect = ignoreShrink = true; + int result = OS.SendMessage (handle, OS.LVM_INSERTITEM, 0, lvItem); + ignoreSelect = ignoreShrink = false; + if (result is -1) error (DWT.ERROR_ITEM_NOT_ADDED); + System.arraycopy (items, index, items, index + 1, count - index); + items [index] = item; + setDeferResize (false); + + /* Resize to show the first item */ + if (count is 0) setScrollWidth (item, false); +} + +void createWidget () { + super.createWidget (); + itemHeight = hotIndex = -1; + items = new TableItem [4]; + columns = new TableColumn [4]; +} + +int defaultBackground () { + return OS.GetSysColor (OS.COLOR_WINDOW); +} + +void deregister () { + super.deregister (); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader !is 0) display.removeControl (hwndHeader); +} + +/** + * Deselects the items at the given zero-relative indices in the receiver. + * If the item at the given zero-relative index in the receiver + * is selected, it is deselected. If the item at the index + * was not selected, it remains deselected. Indices that are out + * of range and duplicate indices are ignored. + * + * @param indices the array of indices for the items to deselect + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the set of indices is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselect (int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + if (indices.length is 0) return; + LVITEM lvItem = new LVITEM (); + lvItem.stateMask = OS.LVIS_SELECTED; + for (int i=0; i<indices.length; i++) { + /* + * An index of -1 will apply the change to all + * items. Ensure that indices are greater than -1. + */ + if (indices [i] >= 0) { + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, indices [i], lvItem); + ignoreSelect = false; + } + } +} + +/** + * Deselects the item at the given zero-relative index in the receiver. + * If the item at the index was already deselected, it remains + * deselected. Indices that are out of range are ignored. + * + * @param index the index of the item to deselect + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselect (int index) { + checkWidget (); + /* + * An index of -1 will apply the change to all + * items. Ensure that index is greater than -1. + */ + if (index < 0) return; + LVITEM lvItem = new LVITEM (); + lvItem.stateMask = OS.LVIS_SELECTED; + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, index, lvItem); + ignoreSelect = false; +} + +/** + * Deselects the items at the given zero-relative indices in the receiver. + * If the item at the given zero-relative index in the receiver + * is selected, it is deselected. If the item at the index + * was not selected, it remains deselected. The range of the + * indices is inclusive. Indices that are out of range are ignored. + * + * @param start the start index of the items to deselect + * @param end the end index of the items to deselect + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselect (int start, int end) { + checkWidget (); + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (start is 0 && end is count - 1) { + deselectAll (); + } else { + LVITEM lvItem = new LVITEM (); + lvItem.stateMask = OS.LVIS_SELECTED; + /* + * An index of -1 will apply the change to all + * items. Ensure that indices are greater than -1. + */ + start = Math.max (0, start); + for (int i=start; i<=end; i++) { + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, i, lvItem); + ignoreSelect = false; + } + } +} + +/** + * Deselects all selected items in the receiver. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselectAll () { + checkWidget (); + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_STATE; + lvItem.stateMask = OS.LVIS_SELECTED; + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, -1, lvItem); + ignoreSelect = false; +} + +void destroyItem (TableColumn column) { + int index = 0; + while (index < columnCount) { + if (columns [index] is column) break; + index++; + } + int oldColumn = OS.SendMessage (handle, OS.LVM_GETSELECTEDCOLUMN, 0, 0); + if (oldColumn is index) { + OS.SendMessage (handle, OS.LVM_SETSELECTEDCOLUMN, -1, 0); + } else { + if (oldColumn > index) { + OS.SendMessage (handle, OS.LVM_SETSELECTEDCOLUMN, oldColumn - 1, 0); + } + } + int orderIndex = 0; + int [] oldOrder = new int [columnCount]; + OS.SendMessage (handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, oldOrder); + while (orderIndex < columnCount) { + if (oldOrder [orderIndex] is index) break; + orderIndex++; + } + ignoreColumnResize = true; + bool first = false; + if (index is 0) { + first = true; + if (columnCount > 1) { + index = 1; + int cchTextMax = 1024; + int hHeap = OS.GetProcessHeap (); + int byteCount = cchTextMax * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + LVCOLUMN lvColumn = new LVCOLUMN (); + lvColumn.mask = OS.LVCF_TEXT | OS.LVCF_IMAGE | OS.LVCF_WIDTH | OS.LVCF_FMT; + lvColumn.pszText = pszText; + lvColumn.cchTextMax = cchTextMax; + OS.SendMessage (handle, OS.LVM_GETCOLUMN, 1, lvColumn); + lvColumn.fmt &= ~(OS.LVCFMT_CENTER | OS.LVCFMT_RIGHT); + lvColumn.fmt |= OS.LVCFMT_LEFT; + OS.SendMessage (handle, OS.LVM_SETCOLUMN, 0, lvColumn); + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + } else { + int hHeap = OS.GetProcessHeap (); + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, TCHAR.sizeof); + LVCOLUMN lvColumn = new LVCOLUMN (); + lvColumn.mask = OS.LVCF_TEXT | OS.LVCF_IMAGE | OS.LVCF_WIDTH | OS.LVCF_FMT; + lvColumn.pszText = pszText; + lvColumn.iImage = OS.I_IMAGENONE; + lvColumn.fmt = OS.LVCFMT_LEFT; + OS.SendMessage (handle, OS.LVM_SETCOLUMN, 0, lvColumn); + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + if (OS.COMCTL32_MAJOR >= 6) { + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_FORMAT; + hdItem.fmt = OS.HDF_LEFT; + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); + } + } + if ((parent.style & DWT.VIRTUAL) is 0) { + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT | OS.LVIF_IMAGE; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + lvItem.iImage = OS.I_IMAGECALLBACK; + int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + for (int i=0; i<itemCount; i++) { + lvItem.iItem = i; + OS.SendMessage (handle, OS.LVM_SETITEM, 0, lvItem); + } + } + } + if (columnCount > 1) { + if (OS.SendMessage (handle, OS.LVM_DELETECOLUMN, index, 0) is 0) { + error (DWT.ERROR_ITEM_NOT_REMOVED); + } + } + if (first) index = 0; + System.arraycopy (columns, index + 1, columns, index, --columnCount - index); + columns [columnCount] = null; + int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + for (int i=0; i<itemCount; i++) { + TableItem item = items [i]; + if (item !is null) { + if (columnCount is 0) { + item.strings = null; + item.images = null; + item.cellBackground = null; + item.cellForeground = null; + item.cellFont = null; + } else { + if (item.strings !is null) { + String [] strings = item.strings; + if (index is 0) { + item.text = strings [1] !is null ? strings [1] : ""; //$NON-NLS-1$ + } + String [] temp = new String [columnCount]; + System.arraycopy (strings, 0, temp, 0, index); + System.arraycopy (strings, index + 1, temp, index, columnCount - index); + item.strings = temp; + } else { + if (index is 0) item.text = ""; //$NON-NLS-1$ + } + if (item.images !is null) { + Image [] images = item.images; + if (index is 0) item.image = images [1]; + Image [] temp = new Image [columnCount]; + System.arraycopy (images, 0, temp, 0, index); + System.arraycopy (images, index + 1, temp, index, columnCount - index); + item.images = temp; + } else { + if (index is 0) item.image = null; + } + if (item.cellBackground !is null) { + int [] cellBackground = item.cellBackground; + int [] temp = new int [columnCount]; + System.arraycopy (cellBackground, 0, temp, 0, index); + System.arraycopy (cellBackground, index + 1, temp, index, columnCount - index); + item.cellBackground = temp; + } + if (item.cellForeground !is null) { + int [] cellForeground = item.cellForeground; + int [] temp = new int [columnCount]; + System.arraycopy (cellForeground, 0, temp, 0, index); + System.arraycopy (cellForeground, index + 1, temp, index, columnCount - index); + item.cellForeground = temp; + } + if (item.cellFont !is null) { + int [] cellFont = item.cellFont; + int [] temp = new int [columnCount]; + System.arraycopy (cellFont, 0, temp, 0, index); + System.arraycopy (cellFont, index + 1, temp, index, columnCount - index); + item.cellFont = temp; + } + } + } + } + if (columnCount is 0) setScrollWidth (null, true); + updateMoveable (); + ignoreColumnResize = false; + if (columnCount !is 0) { + /* + * Bug in Windows. When LVM_DELETECOLUMN is used to delete a + * column zero when that column is both the first column in the + * table and the first column in the column order array, Windows + * incorrectly computes the new column order. For example, both + * the orders {0, 3, 1, 2} and {0, 3, 2, 1} give a new column + * order of {0, 2, 1}, while {0, 2, 1, 3} gives {0, 1, 2, 3}. + * The fix is to compute the new order and compare it with the + * order that Windows is using. If the two differ, the new order + * is used. + */ + int count = 0; + int oldIndex = oldOrder [orderIndex]; + int [] newOrder = new int [columnCount]; + for (int i=0; i<oldOrder.length; i++) { + if (oldOrder [i] !is oldIndex) { + int newIndex = oldOrder [i] <= oldIndex ? oldOrder [i] : oldOrder [i] - 1; + newOrder [count++] = newIndex; + } + } + OS.SendMessage (handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, oldOrder); + int j = 0; + while (j < newOrder.length) { + if (oldOrder [j] !is newOrder [j]) break; + j++; + } + if (j !is newOrder.length) { + OS.SendMessage (handle, OS.LVM_SETCOLUMNORDERARRAY, newOrder.length, newOrder); + /* + * Bug in Windows. When LVM_SETCOLUMNORDERARRAY is used to change + * the column order, the header redraws correctly but the table does + * not. The fix is to force a redraw. + */ + OS.InvalidateRect (handle, null, true); + } + TableColumn [] newColumns = new TableColumn [columnCount - orderIndex]; + for (int i=orderIndex; i<newOrder.length; i++) { + newColumns [i - orderIndex] = columns [newOrder [i]]; + newColumns [i - orderIndex].updateToolTip (newOrder [i]); + } + for (int i=0; i<newColumns.length; i++) { + if (!newColumns [i].isDisposed ()) { + newColumns [i].sendEvent (DWT.Move); + } + } + } + + /* Remove the tool tip item for the header */ + if (headerToolTipHandle !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.uId = column.id; + lpti.hwnd = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (headerToolTipHandle, OS.TTM_DELTOOL, 0, lpti); + } +} + +void destroyItem (TableItem item) { + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + int index = 0; + while (index < count) { + if (items [index] is item) break; + index++; + } + if (index is count) return; + setDeferResize (true); + ignoreSelect = ignoreShrink = true; + int code = OS.SendMessage (handle, OS.LVM_DELETEITEM, index, 0); + ignoreSelect = ignoreShrink = false; + if (code is 0) error (DWT.ERROR_ITEM_NOT_REMOVED); + System.arraycopy (items, index + 1, items, index, --count - index); + items [count] = null; + if (count is 0) setTableEmpty (); + setDeferResize (false); +} + +void fixCheckboxImageList (bool fixScroll) { + /* + * Bug in Windows. When the state image list is larger than the + * image list, Windows incorrectly positions the state images. When + * the table is scrolled, Windows draws garbage. The fix is to force + * the state image list to be the same size as the image list. + */ + if ((style & DWT.CHECK) is 0) return; + int hImageList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0); + if (hImageList is 0) return; + int [] cx = new int [1], cy = new int [1]; + OS.ImageList_GetIconSize (hImageList, cx, cy); + int hStateList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); + if (hStateList is 0) return; + int [] stateCx = new int [1], stateCy = new int [1]; + OS.ImageList_GetIconSize (hStateList, stateCx, stateCy); + if (cx [0] is stateCx [0] && cy [0] is stateCy [0]) return; + setCheckboxImageList (cx [0], cy [0], fixScroll); +} + +void fixCheckboxImageListColor (bool fixScroll) { + if ((style & DWT.CHECK) is 0) return; + int hStateList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); + if (hStateList is 0) return; + int [] cx = new int [1], cy = new int [1]; + OS.ImageList_GetIconSize (hStateList, cx, cy); + setCheckboxImageList (cx [0], cy [0], fixScroll); +} + +void fixItemHeight (bool fixScroll) { + /* + * Bug in Windows. When both a header and grid lines are + * displayed, the grid lines do not take into account the + * height of the header and draw in the wrong place. The + * fix is to set the height of the table items to be the + * height of the header so that the lines draw in the right + * place. The height of a table item is the maximum of the + * height of the font or the height of image list. + * + * NOTE: In version 5.80 of COMCTL32.DLL, the bug is fixed. + */ + if (itemHeight !is -1) return; + if (OS.COMCTL32_VERSION >= OS.VERSION (5, 80)) return; + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_GRIDLINES) is 0) return; + bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.LVS_NOCOLUMNHEADER) !is 0) return; + /* + * Bug in Windows. Making any change to an item that + * changes the item height of a table while the table + * is scrolled can cause the lines to draw incorrectly. + * This happens even when the lines are not currently + * visible and are shown afterwards. The fix is to + * save the top index, scroll to the top of the table + * and then restore the original top index. + */ + int topIndex = getTopIndex (); + if (fixScroll && topIndex !is 0) { + setRedraw (false); + setTopIndex (0); + } + int hOldList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0); + if (hOldList !is 0) return; + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + RECT rect = new RECT (); + OS.GetWindowRect (hwndHeader, rect); + int height = rect.bottom - rect.top - 1; + int hImageList = OS.ImageList_Create (1, height, 0, 0, 0); + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, hImageList); + fixCheckboxImageList (false); + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, 0); + if (headerImageList !is null) { + int hHeaderImageList = headerImageList.getHandle (); + OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, hHeaderImageList); + } + OS.ImageList_Destroy (hImageList); + if (fixScroll && topIndex !is 0) { + setTopIndex (topIndex); + setRedraw (true); + } +} + +/** + * Returns the column at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * Columns are returned in the order that they were created. + * If no <code>TableColumn</code>s were created by the programmer, + * this method will throw <code>ERROR_INVALID_RANGE</code> despite + * the fact that a single column of data may be visible in the table. + * This occurs when the programmer uses the table like a list, adding + * items but never creating a column. + * + * @param index the index of the column to return + * @return the column at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#getColumnOrder() + * @see Table#setColumnOrder(int[]) + * @see TableColumn#getMoveable() + * @see TableColumn#setMoveable(bool) + * @see DWT#Move + */ +public TableColumn getColumn (int index) { + checkWidget (); + if (!(0 <= index && index < columnCount)) error (DWT.ERROR_INVALID_RANGE); + return columns [index]; +} + +/** + * Returns the number of columns contained in the receiver. + * If no <code>TableColumn</code>s were created by the programmer, + * this value is zero, despite the fact that visually, one column + * of items may be visible. This occurs when the programmer uses + * the table like a list, adding items but never creating a column. + * + * @return the number of columns + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getColumnCount () { + checkWidget (); + return columnCount; +} + +/** + * Returns an array of zero-relative integers that map + * the creation order of the receiver's items to the + * order in which they are currently being displayed. + * <p> + * Specifically, the indices of the returned array represent + * the current visual order of the items, and the contents + * of the array represent the creation order of the items. + * </p><p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the current visual order of the receiver's items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#setColumnOrder(int[]) + * @see TableColumn#getMoveable() + * @see TableColumn#setMoveable(bool) + * @see DWT#Move + * + * @since 3.1 + */ +public int[] getColumnOrder () { + checkWidget (); + if (columnCount is 0) return new int [0]; + int [] order = new int [columnCount]; + OS.SendMessage (handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, order); + return order; +} + +/** + * Returns an array of <code>TableColumn</code>s which are the + * columns in the receiver. Columns are returned in the order + * that they were created. If no <code>TableColumn</code>s were + * created by the programmer, the array is empty, despite the fact + * that visually, one column of items may be visible. This occurs + * when the programmer uses the table like a list, adding items but + * never creating a column. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#getColumnOrder() + * @see Table#setColumnOrder(int[]) + * @see TableColumn#getMoveable() + * @see TableColumn#setMoveable(bool) + * @see DWT#Move + */ +public TableColumn [] getColumns () { + checkWidget (); + TableColumn [] result = new TableColumn [columnCount]; + System.arraycopy (columns, 0, result, 0, columnCount); + return result; +} + +int getFocusIndex () { +// checkWidget (); + return OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); +} + +/** + * Returns the width in pixels of a grid line. + * + * @return the width of a grid line in pixels + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getGridLineWidth () { + checkWidget (); + return GRID_WIDTH; +} + +/** + * Returns the height of the receiver's header + * + * @return the height of the header or zero if the header is not visible + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public int getHeaderHeight () { + checkWidget (); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader is 0) return 0; + RECT rect = new RECT (); + OS.GetWindowRect (hwndHeader, rect); + return rect.bottom - rect.top; +} + +/** + * Returns <code>true</code> if the receiver's header is visible, + * and <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the receiver's header's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getHeaderVisible () { + checkWidget (); + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + return (bits & OS.LVS_NOCOLUMNHEADER) is 0; +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TableItem getItem (int index) { + checkWidget (); + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index < count)) error (DWT.ERROR_INVALID_RANGE); + return _getItem (index); +} + +/** + * Returns the item at the given point in the receiver + * or null if no such item exists. The point is in the + * coordinate system of the receiver. + * <p> + * The item that is returned represents an item that could be selected by the user. + * For example, if selection only occurs in items in the first column, then null is + * returned if the point is outside of the item. + * Note that the DWT.FULL_SELECTION style hint, which specifies the selection policy, + * determines the extent of the selection. + * </p> + * + * @param point the point used to locate the item + * @return the item at the given point, or null if the point is not in a selectable item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TableItem getItem (Point point) { + checkWidget (); + if (point is null) error (DWT.ERROR_NULL_ARGUMENT); + LVHITTESTINFO pinfo = new LVHITTESTINFO (); + pinfo.x = point.x; pinfo.y = point.y; + OS.SendMessage (handle, OS.LVM_HITTEST, 0, pinfo); + if (pinfo.iItem !is -1) { + /* + * Bug in Windows. When the point that is used by + * LVM_HITTEST is inside the header, Windows returns + * the first item in the table. The fix is to check + * when LVM_HITTEST returns the first item and make + * sure that when the point is within the header, + * the first item is not returned. + */ + if (pinfo.iItem is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.LVS_NOCOLUMNHEADER) is 0) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader !is 0) { + RECT rect = new RECT (); + OS.GetWindowRect (hwndHeader, rect); + POINT pt = new POINT (); + pt.x = pinfo.x; + pt.y = pinfo.y; + OS.MapWindowPoints (handle, 0, pt, 1); + if (OS.PtInRect (rect, pt)) return null; + } + } + } + return _getItem (pinfo.iItem); + } + return null; +} + +/** + * Returns the number of items contained in the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + return OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); +} + +/** + * Returns the height of the area which would be used to + * display <em>one</em> of the items in the receiver's. + * + * @return the height of one item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemHeight () { + checkWidget (); + int empty = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); + int oneItem = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); + return (oneItem >> 16) - (empty >> 16); +} + +/** + * Returns a (possibly empty) array of <code>TableItem</code>s which + * are the items in the receiver. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TableItem [] getItems () { + checkWidget (); + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + TableItem [] result = new TableItem [count]; + if ((style & DWT.VIRTUAL) !is 0) { + for (int i=0; i<count; i++) { + result [i] = _getItem (i); + } + } else { + System.arraycopy (items, 0, result, 0, count); + } + return result; +} + +/** + * Returns <code>true</code> if the receiver's lines are visible, + * and <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the visibility state of the lines + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getLinesVisible () { + checkWidget (); + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + return (bits & OS.LVS_EX_GRIDLINES) !is 0; +} + +/** + * Returns an array of <code>TableItem</code>s that are currently + * selected in the receiver. The order of the items is unspecified. + * An empty array indicates that no items are selected. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its selection, so modifying the array will + * not affect the receiver. + * </p> + * @return an array representing the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TableItem [] getSelection () { + checkWidget (); + int i = -1, j = 0, count = OS.SendMessage (handle, OS.LVM_GETSELECTEDCOUNT, 0, 0); + TableItem [] result = new TableItem [count]; + while ((i = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, i, OS.LVNI_SELECTED)) !is -1) { + result [j++] = _getItem (i); + } + return result; +} + +/** + * Returns the number of selected items contained in the receiver. + * + * @return the number of selected items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelectionCount () { + checkWidget (); + return OS.SendMessage (handle, OS.LVM_GETSELECTEDCOUNT, 0, 0); +} + +/** + * Returns the zero-relative index of the item which is currently + * selected in the receiver, or -1 if no item is selected. + * + * @return the index of the selected item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelectionIndex () { + checkWidget (); + int focusIndex = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); + int selectedIndex = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_SELECTED); + if (focusIndex is selectedIndex) return selectedIndex; + int i = -1; + while ((i = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, i, OS.LVNI_SELECTED)) !is -1) { + if (i is focusIndex) return i; + } + return selectedIndex; +} + +/** + * Returns the zero-relative indices of the items which are currently + * selected in the receiver. The order of the indices is unspecified. + * The array is empty if no items are selected. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its selection, so modifying the array will + * not affect the receiver. + * </p> + * @return the array of indices of the selected items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int [] getSelectionIndices () { + checkWidget (); + int i = -1, j = 0, count = OS.SendMessage (handle, OS.LVM_GETSELECTEDCOUNT, 0, 0); + int [] result = new int [count]; + while ((i = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, i, OS.LVNI_SELECTED)) !is -1) { + result [j++] = i; + } + return result; +} + +/** + * Returns the column which shows the sort indicator for + * the receiver. The value may be null if no column shows + * the sort indicator. + * + * @return the sort indicator + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setSortColumn(TableColumn) + * + * @since 3.2 + */ +public TableColumn getSortColumn () { + checkWidget (); + return sortColumn; +} + +int getSortColumnPixel () { + int pixel = OS.IsWindowEnabled (handle) ? getBackgroundPixel () : OS.GetSysColor (OS.COLOR_3DFACE); + int red = pixel & 0xFF; + int green = (pixel & 0xFF00) >> 8; + int blue = (pixel & 0xFF0000) >> 16; + if (red > 240 && green > 240 && blue > 240) { + red -= 8; + green -= 8; + blue -= 8; + } else { + red = Math.min (0xFF, (red / 10) + red); + green = Math.min (0xFF, (green / 10) + green); + blue = Math.min (0xFF, (blue / 10) + blue); + } + return (red & 0xFF) | ((green & 0xFF) << 8) | ((blue & 0xFF) << 16); +} + +/** + * Returns the direction of the sort indicator for the receiver. + * The value will be one of <code>UP</code>, <code>DOWN</code> + * or <code>NONE</code>. + * + * @return the sort direction + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setSortDirection(int) + * + * @since 3.2 + */ +public int getSortDirection () { + checkWidget (); + return sortDirection; +} + +/** + * Returns the zero-relative index of the item which is currently + * at the top of the receiver. This index can change when items are + * scrolled or new items are added or removed. + * + * @return the index of the top item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getTopIndex () { + checkWidget (); + /* + * Bug in Windows. Under rare circumstances, LVM_GETTOPINDEX + * can return a negative number. When this happens, the table + * is displaying blank lines at the top of the controls. The + * fix is to check for a negative number and return zero instead. + */ + return Math.max (0, OS.SendMessage (handle, OS.LVM_GETTOPINDEX, 0, 0)); +} + +bool hasChildren () { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + int hwndChild = OS.GetWindow (handle, OS.GW_CHILD); + while (hwndChild !is 0) { + if (hwndChild !is hwndHeader) return true; + hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT); + } + return false; +} + +int imageIndex (Image image, int column) { + if (image is null) return OS.I_IMAGENONE; + if (column is 0) { + firstColumnImage = true; + } else { + setSubImagesVisible (true); + } + if (imageList is null) { + Rectangle bounds = image.getBounds (); + imageList = display.getImageList (style & DWT.RIGHT_TO_LEFT, bounds.width, bounds.height); + int index = imageList.indexOf (image); + if (index is -1) index = imageList.add (image); + int hImageList = imageList.getHandle (); + /* + * Bug in Windows. Making any change to an item that + * changes the item height of a table while the table + * is scrolled can cause the lines to draw incorrectly. + * This happens even when the lines are not currently + * visible and are shown afterwards. The fix is to + * save the top index, scroll to the top of the table + * and then restore the original top index. + */ + int topIndex = getTopIndex (); + if (topIndex !is 0) { + setRedraw (false); + setTopIndex (0); + } + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, hImageList); + if (headerImageList !is null) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + int hHeaderImageList = headerImageList.getHandle (); + OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, hHeaderImageList); + } + fixCheckboxImageList (false); + if (itemHeight !is -1) setItemHeight (false); + if (topIndex !is 0) { + setTopIndex (topIndex); + setRedraw (true); + } + return index; + } + int index = imageList.indexOf (image); + if (index !is -1) return index; + return imageList.add (image); +} + +int imageIndexHeader (Image image) { + if (image is null) return OS.I_IMAGENONE; + if (headerImageList is null) { + Rectangle bounds = image.getBounds (); + headerImageList = display.getImageList (style & DWT.RIGHT_TO_LEFT, bounds.width, bounds.height); + int index = headerImageList.indexOf (image); + if (index is -1) index = headerImageList.add (image); + int hImageList = headerImageList.getHandle (); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, hImageList); + return index; + } + int index = headerImageList.indexOf (image); + if (index !is -1) return index; + return headerImageList.add (image); +} + +/** + * Searches the receiver's list starting at the first column + * (index 0) until a column is found that is equal to the + * argument, and returns the index of that column. If no column + * is found, returns -1. + * + * @param column the search column + * @return the index of the column + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the column is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (TableColumn column) { + checkWidget (); + if (column is null) error (DWT.ERROR_NULL_ARGUMENT); + for (int i=0; i<columnCount; i++) { + if (columns [i] is column) return i; + } + return -1; +} + +/** + * Searches the receiver's list starting at the first item + * (index 0) until an item is found that is equal to the + * argument, and returns the index of that item. If no item + * is found, returns -1. + * + * @param item the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (TableItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (1 <= lastIndexOf && lastIndexOf < count - 1) { + if (items [lastIndexOf] is item) return lastIndexOf; + if (items [lastIndexOf + 1] is item) return ++lastIndexOf; + if (items [lastIndexOf - 1] is item) return --lastIndexOf; + } + if (lastIndexOf < count / 2) { + for (int i=0; i<count; i++) { + if (items [i] is item) return lastIndexOf = i; + } + } else { + for (int i=count - 1; i>=0; --i) { + if (items [i] is item) return lastIndexOf = i; + } + } + return -1; +} + +/** + * Returns <code>true</code> if the item is selected, + * and <code>false</code> otherwise. Indices out of + * range are ignored. + * + * @param index the index of the item + * @return the selection state of the item at the index + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool isSelected (int index) { + checkWidget (); + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_STATE; + lvItem.stateMask = OS.LVIS_SELECTED; + lvItem.iItem = index; + int result = OS.SendMessage (handle, OS.LVM_GETITEM, 0, lvItem); + return (result !is 0) && ((lvItem.state & OS.LVIS_SELECTED) !is 0); +} + +void register () { + super.register (); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader !is 0) display.addControl (hwndHeader, this); +} + +void releaseChildren (bool destroy) { + if (items !is null) { + int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + /* + * Feature in Windows 98. When there are a large number + * of columns and items in a table (>1000) where each + * of the subitems in the table has a string, it is much + * faster to delete each item with LVM_DELETEITEM rather + * than using LVM_DELETEALLITEMS. The fix is to detect + * this case and delete the items, one by one. The fact + * that the fix is only necessary on Windows 98 was + * confirmed using version 5.81 of COMCTL32.DLL on both + * Windows 98 and NT. + * + * NOTE: LVM_DELETEALLITEMS is also sent by the table + * when the table is destroyed. + */ + if (OS.IsWin95 && columnCount > 1) { + /* Turn off redraw and resize events and leave them off */ + resizeCount = 1; + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + for (int i=itemCount-1; i>=0; --i) { + TableItem item = items [i]; + if (item !is null && !item.isDisposed ()) item.release (false); + ignoreSelect = ignoreShrink = true; + OS.SendMessage (handle, OS.LVM_DELETEITEM, i, 0); + ignoreSelect = ignoreShrink = false; + } + } else { + for (int i=0; i<itemCount; i++) { + TableItem item = items [i]; + if (item !is null && !item.isDisposed ()) item.release (false); + } + } + items = null; + } + if (columns !is null) { + for (int i=0; i<columnCount; i++) { + TableColumn column = columns [i]; + if (!column.isDisposed ()) column.release (false); + } + columns = null; + } + super.releaseChildren (destroy); +} + +void releaseWidget () { + super.releaseWidget (); + customDraw = false; + currentItem = null; + if (imageList !is null) { + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, 0); + display.releaseImageList (imageList); + } + if (headerImageList !is null) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, 0); + display.releaseImageList (headerImageList); + } + imageList = headerImageList = null; + int hStateList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_STATE, 0); + if (hStateList !is 0) OS.ImageList_Destroy (hStateList); + if (headerToolTipHandle !is 0) OS.DestroyWindow (headerToolTipHandle); + headerToolTipHandle = 0; +} + +/** + * Removes the items from the receiver's list at the given + * zero-relative indices. + * + * @param indices the array of indices of the items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * <li>ERROR_NULL_ARGUMENT - if the indices array is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + if (indices.length is 0) return; + int [] newIndices = new int [indices.length]; + System.arraycopy (indices, 0, newIndices, 0, indices.length); + sort (newIndices); + int start = newIndices [newIndices.length - 1], end = newIndices [0]; + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (!(0 <= start && start <= end && end < count)) { + error (DWT.ERROR_INVALID_RANGE); + } + setDeferResize (true); + int last = -1; + for (int i=0; i<newIndices.length; i++) { + int index = newIndices [i]; + if (index !is last) { + TableItem item = items [index]; + if (item !is null && !item.isDisposed ()) item.release (false); + ignoreSelect = ignoreShrink = true; + int code = OS.SendMessage (handle, OS.LVM_DELETEITEM, index, 0); + ignoreSelect = ignoreShrink = false; + if (code is 0) error (DWT.ERROR_ITEM_NOT_REMOVED); + System.arraycopy (items, index + 1, items, index, --count - index); + items [count] = null; + last = index; + } + } + if (count is 0) setTableEmpty (); + setDeferResize (false); +} + +/** + * Removes the item from the receiver at the given + * zero-relative index. + * + * @param index the index for the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (int index) { + checkWidget (); + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index < count)) error (DWT.ERROR_INVALID_RANGE); + TableItem item = items [index]; + if (item !is null && !item.isDisposed ()) item.release (false); + setDeferResize (true); + ignoreSelect = ignoreShrink = true; + int code = OS.SendMessage (handle, OS.LVM_DELETEITEM, index, 0); + ignoreSelect = ignoreShrink = false; + if (code is 0) error (DWT.ERROR_ITEM_NOT_REMOVED); + System.arraycopy (items, index + 1, items, index, --count - index); + items [count] = null; + if (count is 0) setTableEmpty (); + setDeferResize (false); +} + +/** + * Removes the items from the receiver which are + * between the given zero-relative start and end + * indices (inclusive). + * + * @param start the start of the range + * @param end the end of the range + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void remove (int start, int end) { + checkWidget (); + if (start > end) return; + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (!(0 <= start && start <= end && end < count)) { + error (DWT.ERROR_INVALID_RANGE); + } + if (start is 0 && end is count - 1) { + removeAll (); + } else { + setDeferResize (true); + int index = start; + while (index <= end) { + TableItem item = items [index]; + if (item !is null && !item.isDisposed ()) item.release (false); + ignoreSelect = ignoreShrink = true; + int code = OS.SendMessage (handle, OS.LVM_DELETEITEM, start, 0); + ignoreSelect = ignoreShrink = false; + if (code is 0) break; + index++; + } + System.arraycopy (items, index, items, start, count - index); + for (int i=count-(index-start); i<count; i++) items [i] = null; + if (index <= end) error (DWT.ERROR_ITEM_NOT_REMOVED); + /* + * This code is intentionally commented. It is not necessary + * to check for an empty table because removeAll() was called + * when the start is 0 and end is count - 1. + */ + //if (count - index is 0) setTableEmpty (); + setDeferResize (false); + } +} + +/** + * Removes all of the items from the receiver. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void removeAll () { + checkWidget (); + int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + for (int i=0; i<itemCount; i++) { + TableItem item = items [i]; + if (item !is null && !item.isDisposed ()) item.release (false); + } + /* + * Feature in Windows 98. When there are a large number + * of columns and items in a table (>1000) where each + * of the subitems in the table has a string, it is much + * faster to delete each item with LVM_DELETEITEM rather + * than using LVM_DELETEALLITEMS. The fix is to detect + * this case and delete the items, one by one. The fact + * that the fix is only necessary on Windows 98 was + * confirmed using version 5.81 of COMCTL32.DLL on both + * Windows 98 and NT. + * + * NOTE: LVM_DELETEALLITEMS is also sent by the table + * when the table is destroyed. + */ + setDeferResize (true); + if (OS.IsWin95 && columnCount > 1) { + bool redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + int index = itemCount - 1; + while (index >= 0) { + ignoreSelect = ignoreShrink = true; + int code = OS.SendMessage (handle, OS.LVM_DELETEITEM, index, 0); + ignoreSelect = ignoreShrink = false; + if (code is 0) break; + --index; + } + if (redraw) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + /* + * This code is intentionally commented. The window proc + * for the table implements WM_SETREDRAW to invalidate + * and erase the table so it is not necessary to do this + * again. + */ +// int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE; +// OS.RedrawWindow (handle, null, 0, flags); + } + if (index !is -1) error (DWT.ERROR_ITEM_NOT_REMOVED); + } else { + ignoreSelect = ignoreShrink = true; + int code = OS.SendMessage (handle, OS.LVM_DELETEALLITEMS, 0, 0); + ignoreSelect = ignoreShrink = false; + if (code is 0) error (DWT.ERROR_ITEM_NOT_REMOVED); + } + setTableEmpty (); + setDeferResize (false); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the user changes the receiver's selection. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener(SelectionListener) + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Selects the items at the given zero-relative indices in the receiver. + * The current selection is not cleared before the new items are selected. + * <p> + * If the item at a given index is not selected, it is selected. + * If the item at a given index was already selected, it remains selected. + * Indices that are out of range and duplicate indices are ignored. + * If the receiver is single-select and multiple indices are specified, + * then all indices are ignored. + * </p> + * + * @param indices the array of indices for the items to select + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of indices is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#setSelection(int[]) + */ +public void select (int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + int length = indices.length; + if (length is 0 || ((style & DWT.SINGLE) !is 0 && length > 1)) return; + LVITEM lvItem = new LVITEM (); + lvItem.state = OS.LVIS_SELECTED; + lvItem.stateMask = OS.LVIS_SELECTED; + for (int i=length-1; i>=0; --i) { + /* + * An index of -1 will apply the change to all + * items. Ensure that indices are greater than -1. + */ + if (indices [i] >= 0) { + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, indices [i], lvItem); + ignoreSelect = false; + } + } +} + +/** + * Selects the item at the given zero-relative index in the receiver. + * If the item at the index was already selected, it remains + * selected. Indices that are out of range are ignored. + * + * @param index the index of the item to select + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void select (int index) { + checkWidget (); + /* + * An index of -1 will apply the change to all + * items. Ensure that index is greater than -1. + */ + if (index < 0) return; + LVITEM lvItem = new LVITEM (); + lvItem.state = OS.LVIS_SELECTED; + lvItem.stateMask = OS.LVIS_SELECTED; + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, index, lvItem); + ignoreSelect = false; +} + +/** + * Selects the items in the range specified by the given zero-relative + * indices in the receiver. The range of indices is inclusive. + * The current selection is not cleared before the new items are selected. + * <p> + * If an item in the given range is not selected, it is selected. + * If an item in the given range was already selected, it remains selected. + * Indices that are out of range are ignored and no items will be selected + * if start is greater than end. + * If the receiver is single-select and there is more than one item in the + * given range, then all indices are ignored. + * </p> + * + * @param start the start of the range + * @param end the end of the range + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#setSelection(int,int) + */ +public void select (int start, int end) { + checkWidget (); + if (end < 0 || start > end || ((style & DWT.SINGLE) !is 0 && start !is end)) return; + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (count is 0 || start >= count) return; + start = Math.max (0, start); + end = Math.min (end, count - 1); + if (start is 0 && end is count - 1) { + selectAll (); + } else { + /* + * An index of -1 will apply the change to all + * items. Indices must be greater than -1. + */ + LVITEM lvItem = new LVITEM (); + lvItem.state = OS.LVIS_SELECTED; + lvItem.stateMask = OS.LVIS_SELECTED; + for (int i=start; i<=end; i++) { + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, i, lvItem); + ignoreSelect = false; + } + } +} + +/** + * Selects all of the items in the receiver. + * <p> + * If the receiver is single-select, do nothing. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void selectAll () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) return; + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_STATE; + lvItem.state = OS.LVIS_SELECTED; + lvItem.stateMask = OS.LVIS_SELECTED; + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, -1, lvItem); + ignoreSelect = false; +} + +void sendEraseItemEvent (TableItem item, NMLVCUSTOMDRAW nmcd, int lParam) { + int hDC = nmcd.hdc; + int hFont = item.cellFont !is null ? item.cellFont [nmcd.iSubItem] : -1; + if (hFont is -1) hFont = item.font; + int clrText = item.cellForeground !is null ? item.cellForeground [nmcd.iSubItem] : -1; + if (clrText is -1) clrText = item.foreground; + int clrTextBk = -1; + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (sortColumn !is null && sortDirection !is DWT.NONE) { + if (findImageControl () is null) { + if (indexOf (sortColumn) is nmcd.iSubItem) { + clrTextBk = getSortColumnPixel (); + } + } + } + } + clrTextBk = item.cellBackground !is null ? item.cellBackground [nmcd.iSubItem] : -1; + if (clrTextBk is -1) clrTextBk = item.background; + /* + * Bug in Windows. For some reason, CDIS_SELECTED always set, + * even for items that are not selected. The fix is to get + * the selection state from the item. + */ + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_STATE; + lvItem.stateMask = OS.LVIS_SELECTED; + lvItem.iItem = nmcd.dwItemSpec; + int result = OS.SendMessage (handle, OS.LVM_GETITEM, 0, lvItem); + bool selected = (result !is 0 && (lvItem.state & OS.LVIS_SELECTED) !is 0); + GCData data = new GCData (); + data.device = display; + int clrSelectionBk = -1; + bool drawSelected = false, drawBackground = false, drawHot = false; + if (nmcd.iSubItem is 0 || (style & DWT.FULL_SELECTION) !is 0) { + drawHot = hotIndex is nmcd.dwItemSpec; + } + if (OS.IsWindowEnabled (handle)) { + if (selected && (nmcd.iSubItem is 0 || (style & DWT.FULL_SELECTION) !is 0)) { + if (OS.GetFocus () is handle) { + drawSelected = true; + data.foreground = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT); + data.background = clrSelectionBk = OS.GetSysColor (OS.COLOR_HIGHLIGHT); + } else { + drawSelected = (style & DWT.HIDE_SELECTION) is 0; + data.foreground = OS.GetTextColor (hDC); + data.background = clrSelectionBk = OS.GetSysColor (OS.COLOR_3DFACE); + } + if (explorerTheme) { + data.foreground = clrText !is -1 ? clrText : getForegroundPixel (); + } + } else { + drawBackground = clrTextBk !is -1; + /* + * Bug in Windows. When LVM_SETTEXTBKCOLOR or LVM_SETBKCOLOR + * is used to set the background color of the the text or the + * control, the color is not set in the HDC that is provided + * in Custom Draw. The fix is to explicitly set the background + * color. + */ + if (clrTextBk is -1) { + Control control = findBackgroundControl (); + if (control is null) control = this; + clrTextBk = control.getBackgroundPixel (); + } + data.foreground = clrText !is -1 ? clrText : OS.GetTextColor (hDC); + data.background = clrTextBk !is -1 ? clrTextBk : OS.GetBkColor (hDC); + } + } else { + data.foreground = OS.GetSysColor (OS.COLOR_GRAYTEXT); + data.background = OS.GetSysColor (OS.COLOR_3DFACE); + if (selected) clrSelectionBk = data.background; + } + data.hFont = hFont; + data.uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + int nSavedDC = OS.SaveDC (hDC); + GC gc = GC.win32_new (hDC, data); + RECT cellRect = item.getBounds (nmcd.dwItemSpec, nmcd.iSubItem, true, true, true, true, hDC); + Event event = new Event (); + event.item = item; + event.gc = gc; + event.index = nmcd.iSubItem; + event.detail |= DWT.FOREGROUND; +// if ((nmcd.uItemState & OS.CDIS_FOCUS) !is 0) { + if (OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED) is nmcd.dwItemSpec) { + if (nmcd.iSubItem is 0 || (style & DWT.FULL_SELECTION) !is 0) { + if (handle is OS.GetFocus ()) { + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((uiState & OS.UISF_HIDEFOCUS) is 0) event.detail |= DWT.FOCUSED; + } + } + } + if (drawHot) event.detail |= DWT.HOT; + if (drawSelected) event.detail |= DWT.SELECTED; + if (drawBackground) event.detail |= DWT.BACKGROUND; + event.x = cellRect.left; + event.y = cellRect.top; + event.width = cellRect.right - cellRect.left; + event.height = cellRect.bottom - cellRect.top; + gc.setClipping (event.x, event.y, event.width, event.height); + sendEvent (DWT.EraseItem, event); + event.gc = null; + int clrSelectionText = data.foreground; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); + if (isDisposed () || item.isDisposed ()) return; + if (event.doit) { + ignoreDrawForeground = (event.detail & DWT.FOREGROUND) is 0; + ignoreDrawBackground = (event.detail & DWT.BACKGROUND) is 0; + ignoreDrawSelection = (event.detail & DWT.SELECTED) is 0; + ignoreDrawFocus = (event.detail & DWT.FOCUSED) is 0; + ignoreDrawHot = (event.detail & DWT.HOT) is 0; + } else { + ignoreDrawForeground = ignoreDrawBackground = ignoreDrawSelection = ignoreDrawFocus = ignoreDrawHot = true; + } + if (drawSelected) { + if (ignoreDrawSelection) { + ignoreDrawHot = true; + if (nmcd.iSubItem is 0 || (style & DWT.FULL_SELECTION) !is 0) { + selectionForeground = clrSelectionText; + } + nmcd.uItemState &= ~OS.CDIS_SELECTED; + OS.MoveMemory (lParam, nmcd, NMLVCUSTOMDRAW.sizeof); + } + } else { + if (ignoreDrawSelection) { + nmcd.uItemState |= OS.CDIS_SELECTED; + OS.MoveMemory (lParam, nmcd, NMLVCUSTOMDRAW.sizeof); + } + } + if (ignoreDrawFocus) { + nmcd.uItemState &= ~OS.CDIS_FOCUS; + OS.MoveMemory (lParam, nmcd, NMLVCUSTOMDRAW.sizeof); + } + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + bool firstColumn = nmcd.iSubItem is OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); + if (ignoreDrawForeground && ignoreDrawHot) { + if (!ignoreDrawBackground && drawBackground) { + RECT backgroundRect = item.getBounds (nmcd.dwItemSpec, nmcd.iSubItem, true, false, true, false, hDC); + fillBackground (hDC, clrTextBk, backgroundRect); + } + } + if (!ignoreDrawHot || (!ignoreDrawSelection && clrSelectionBk !is -1)) { + if (explorerTheme) { + bool hot = drawHot; + RECT pClipRect = new RECT (); + OS.SetRect (pClipRect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if ((style & DWT.FULL_SELECTION) !is 0) { + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + int index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, count - 1, 0); + RECT headerRect = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + OS.MapWindowPoints (hwndHeader, handle, headerRect, 2); + rect.left = 0; + rect.right = headerRect.right; + pClipRect.left = cellRect.left; + pClipRect.right += EXPLORER_EXTRA; + } else { + rect.right += EXPLORER_EXTRA; + pClipRect.right += EXPLORER_EXTRA; + } + int hTheme = OS.OpenThemeData (handle, Display.LISTVIEW); + int iStateId = selected ? OS.LISS_SELECTED : OS.LISS_HOT; + if (OS.GetFocus () !is handle && selected && !hot) iStateId = OS.LISS_SELECTEDNOTFOCUS; + OS.DrawThemeBackground (hTheme, hDC, OS.LVP_LISTITEM, iStateId, rect, pClipRect); + OS.CloseThemeData (hTheme); + } else { + bool fullText = ((style & DWT.FULL_SELECTION) !is 0 || !firstColumn); + RECT textRect = item.getBounds (nmcd.dwItemSpec, nmcd.iSubItem, true, false, fullText, false, hDC); + fillBackground (hDC, clrSelectionBk, textRect); + } + } + if (ignoreDrawForeground) { + RECT clipRect = item.getBounds (nmcd.dwItemSpec, nmcd.iSubItem, true, true, true, false, hDC); + OS.SaveDC (hDC); + OS.SelectClipRgn (hDC, 0); + OS.ExcludeClipRect (hDC, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); + } +} + +Event sendMeasureItemEvent (TableItem item, int row, int column, int hDC) { + int hFont = item.cellFont !is null ? item.cellFont [column] : -1; + if (hFont is -1) hFont = item.font; + GCData data = new GCData (); + data.device = display; + data.hFont = hFont; + int nSavedDC = OS.SaveDC (hDC); + GC gc = GC.win32_new (hDC, data); + RECT itemRect = item.getBounds (row, column, true, true, false, false, hDC); + Event event = new Event (); + event.item = item; + event.gc = gc; + event.index = column; + event.x = itemRect.left; + event.y = itemRect.top; + event.width = itemRect.right - itemRect.left; + event.height = itemRect.bottom - itemRect.top; + sendEvent (DWT.MeasureItem, event); + event.gc = null; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); + if (!isDisposed () && !item.isDisposed ()) { + if (columnCount is 0) { + int width = OS.SendMessage (handle, OS.LVM_GETCOLUMNWIDTH, 0, 0); + if (event.x + event.width > width) { + OS.SendMessage (handle, OS.LVM_SETCOLUMNWIDTH, 0, event.x + event.width); + } + } + if (event.height > getItemHeight ()) setItemHeight (event.height); + } + return event; +} + +LRESULT sendMouseDownEvent (int type, int button, int msg, int wParam, int lParam) { + /* + * Feature in Windows. Inside WM_LBUTTONDOWN and WM_RBUTTONDOWN, + * the widget starts a modal loop to determine if the user wants + * to begin a drag/drop operation or marque select. Unfortunately, + * this modal loop eats the corresponding mouse up. The fix is to + * detect the cases when the modal loop has eaten the mouse up and + * issue a fake mouse up. + * + * By observation, when the mouse is clicked anywhere but the check + * box, the widget eats the mouse up. When the mouse is dragged, + * the widget does not eat the mouse up. + */ + LVHITTESTINFO pinfo = new LVHITTESTINFO (); + pinfo.x = (short) (lParam & 0xFFFF); + pinfo.y = (short) (lParam >> 16); + OS.SendMessage (handle, OS.LVM_HITTEST, 0, pinfo); + Display display = this.display; + display.captureChanged = false; + if (!sendMouseEvent (type, button, handle, msg, wParam, lParam)) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + + /* + * Force the table to have focus so that when the user + * reselects the focus item, the LVIS_FOCUSED state bits + * for the item will be set. If the user did not click on + * an item, then set focus to the table so that it will + * come to the front and take focus in the work around + * below. + */ + OS.SetFocus (handle); + + /* + * Feature in Windows. When the user selects outside of + * a table item, Windows deselects all the items, even + * when the table is multi-select. While not strictly + * wrong, this is unexpected. The fix is to detect the + * case and avoid calling the window proc. + */ + if ((style & DWT.SINGLE) !is 0 || hooks (DWT.MouseDown) || hooks (DWT.MouseUp)) { + if (pinfo.iItem is -1) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + } + + /* + * Feature in Windows. When a table item is reselected + * in a single-select table, Windows does not issue a + * WM_NOTIFY because the item state has not changed. + * This is strictly correct but is inconsistent with the + * list widget and other widgets in Windows. The fix is + * to detect the case when an item is reselected and mark + * it as selected. + */ + bool forceSelect = false; + int count = OS.SendMessage (handle, OS.LVM_GETSELECTEDCOUNT, 0, 0); + if (count is 1 && pinfo.iItem !is -1) { + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_STATE; + lvItem.stateMask = OS.LVIS_SELECTED; + lvItem.iItem = pinfo.iItem; + OS.SendMessage (handle, OS.LVM_GETITEM, 0, lvItem); + if ((lvItem.state & OS.LVIS_SELECTED) !is 0) { + forceSelect = true; + } + } + /* + * Feature in Windows. Inside WM_LBUTTONDOWN and WM_RBUTTONDOWN, + * the widget starts a modal loop to determine if the user wants + * to begin a drag/drop operation or marque select. This modal + * loop eats mouse events until a drag is detected. The fix is + * to avoid this behavior by only running the drag and drop when + * the event is hooked and the mouse is over an item. + */ + bool dragDetect = (state & DRAG_DETECT) !is 0 && hooks (DWT.DragDetect); + if (!dragDetect) { + int flags = OS.LVHT_ONITEMICON | OS.LVHT_ONITEMLABEL; + dragDetect = pinfo.iItem is -1 || (pinfo.flags & flags) is 0; + } + if (!dragDetect) display.runDragDrop = false; + int code = callWindowProc (handle, msg, wParam, lParam, forceSelect); + if (!dragDetect) display.runDragDrop = true; + if (dragStarted || !dragDetect) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + } else { + int flags = OS.LVHT_ONITEMLABEL | OS.LVHT_ONITEMICON; + bool fakeMouseUp = (pinfo.flags & flags) !is 0; + if (!fakeMouseUp && (style & DWT.MULTI) !is 0) { + fakeMouseUp = (pinfo.flags & OS.LVHT_ONITEMSTATEICON) is 0; + } + if (fakeMouseUp) { + sendMouseEvent (DWT.MouseUp, button, handle, msg, wParam, lParam); + } + } + dragStarted = false; + return new LRESULT (code); +} + +void sendPaintItemEvent (TableItem item, NMLVCUSTOMDRAW nmcd) { + int hDC = nmcd.hdc; + GCData data = new GCData (); + data.device = display; + int hFont = item.cellFont !is null ? item.cellFont [nmcd.iSubItem] : -1; + if (hFont is -1) hFont = item.font; + data.hFont = hFont; + /* + * Bug in Windows. For some reason, CDIS_SELECTED always set, + * even for items that are not selected. The fix is to get + * the selection state from the item. + */ + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_STATE; + lvItem.stateMask = OS.LVIS_SELECTED; + lvItem.iItem = nmcd.dwItemSpec; + int result = OS.SendMessage (handle, OS.LVM_GETITEM, 0, lvItem); + bool selected = result !is 0 && (lvItem.state & OS.LVIS_SELECTED) !is 0; + bool drawSelected = false, drawBackground = false, drawHot = false; + if (nmcd.iSubItem is 0 || (style & DWT.FULL_SELECTION) !is 0) { + drawHot = hotIndex is nmcd.dwItemSpec; + } + if (OS.IsWindowEnabled (handle)) { + if (selected && (nmcd.iSubItem is 0 || (style & DWT.FULL_SELECTION) !is 0)) { + if (OS.GetFocus () is handle) { + drawSelected = true; + if (selectionForeground !is -1) { + data.foreground = selectionForeground; + } else { + data.foreground = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT); + } + data.background = OS.GetSysColor (OS.COLOR_HIGHLIGHT); + } else { + drawSelected = (style & DWT.HIDE_SELECTION) is 0; + data.foreground = OS.GetTextColor (hDC); + data.background = OS.GetSysColor (OS.COLOR_3DFACE); + } + if (explorerTheme && selectionForeground is -1) { + int clrText = item.cellForeground !is null ? item.cellForeground [nmcd.iSubItem] : -1; + if (clrText is -1) clrText = item.foreground; + data.foreground = clrText !is -1 ? clrText : getForegroundPixel (); + } + } else { + int clrText = item.cellForeground !is null ? item.cellForeground [nmcd.iSubItem] : -1; + if (clrText is -1) clrText = item.foreground; + int clrTextBk = item.cellBackground !is null ? item.cellBackground [nmcd.iSubItem] : -1; + if (clrTextBk is -1) clrTextBk = item.background; + drawBackground = clrTextBk !is -1; + /* + * Bug in Windows. When LVM_SETTEXTBKCOLOR or LVM_SETBKCOLOR + * is used to set the background color of the the text or the + * control, the color is not set in the HDC that is provided + * in Custom Draw. The fix is to explicitly set the background + * color. + */ + if (clrTextBk is -1) { + Control control = findBackgroundControl (); + if (control is null) control = this; + clrTextBk = control.getBackgroundPixel (); + } + data.foreground = clrText !is -1 ? clrText : OS.GetTextColor (hDC); + data.background = clrTextBk !is -1 ? clrTextBk : OS.GetBkColor (hDC); + } + } else { + data.foreground = OS.GetSysColor (OS.COLOR_GRAYTEXT); + data.background = OS.GetSysColor (OS.COLOR_3DFACE); + } + data.uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + int nSavedDC = OS.SaveDC (hDC); + GC gc = GC.win32_new (hDC, data); + RECT itemRect = item.getBounds (nmcd.dwItemSpec, nmcd.iSubItem, true, true, false, false, hDC); + Event event = new Event (); + event.item = item; + event.gc = gc; + event.index = nmcd.iSubItem; + event.detail |= DWT.FOREGROUND; +// if ((nmcd.uItemState & OS.CDIS_FOCUS) !is 0) { + if (OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED) is nmcd.dwItemSpec) { + if (nmcd.iSubItem is 0 || (style & DWT.FULL_SELECTION) !is 0) { + if (handle is OS.GetFocus ()) { + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((uiState & OS.UISF_HIDEFOCUS) is 0) event.detail |= DWT.FOCUSED; + } + } + } + if (drawHot) event.detail |= DWT.HOT; + if (drawSelected) event.detail |= DWT.SELECTED; + if (drawBackground) event.detail |= DWT.BACKGROUND; + event.x = itemRect.left; + event.y = itemRect.top; + event.width = itemRect.right - itemRect.left; + event.height = itemRect.bottom - itemRect.top; + RECT cellRect = item.getBounds (nmcd.dwItemSpec, nmcd.iSubItem, true, true, true, true, hDC); + int cellWidth = cellRect.right - cellRect.left; + int cellHeight = cellRect.bottom - cellRect.top; + gc.setClipping (cellRect.left, cellRect.top, cellWidth, cellHeight); + sendEvent (DWT.PaintItem, event); + event.gc = null; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); +} + +void setBackgroundImage (int hBitmap) { + super.setBackgroundImage (hBitmap); + if (!customDraw) setBackgroundTransparent (hBitmap !is 0); +} + +void setBackgroundPixel (int newPixel) { + if (!customDraw) { + if (findImageControl () !is null) return; + if (newPixel is -1) newPixel = defaultBackground (); + int oldPixel = OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0); + if (oldPixel !is newPixel) { + OS.SendMessage (handle, OS.LVM_SETBKCOLOR, 0, newPixel); + OS.SendMessage (handle, OS.LVM_SETTEXTBKCOLOR, 0, newPixel); + if ((style & DWT.CHECK) !is 0) fixCheckboxImageListColor (true); + } + } + /* + * Feature in Windows. When the background color is changed, + * the table does not redraw until the next WM_PAINT. The fix + * is to force a redraw. + */ + OS.InvalidateRect (handle, null, true); +} + +void setBackgroundTransparent (bool transparent) { + /* + * Bug in Windows. When the table has the extended style + * LVS_EX_FULLROWSELECT and LVM_SETBKCOLOR is used with + * CLR_NONE to make the table transparent, Windows draws + * a black rectangle around the first column. The fix is + * clear LVS_EX_FULLROWSELECT. + * + * Feature in Windows. When LVM_SETBKCOLOR is used with + * CLR_NONE and LVM_SETSELECTEDCOLUMN is used to select + * a column, Windows fills the column with the selection + * color, drawing on top of the background image and any + * other custom drawing. The fix is to clear the selected + * column. + */ + int oldPixel = OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0); + if (transparent) { + if (oldPixel !is OS.CLR_NONE) { + /* + * Bug in Windows. When the background color is changed, + * the table does not redraw until the next WM_PAINT. The + * fix is to force a redraw. + */ + OS.SendMessage (handle, OS.LVM_SETBKCOLOR, 0, OS.CLR_NONE); + OS.SendMessage (handle, OS.LVM_SETTEXTBKCOLOR, 0, OS.CLR_NONE); + OS.InvalidateRect (handle, null, true); + + /* Clear LVS_EX_FULLROWSELECT */ + if (!explorerTheme && (style & DWT.FULL_SELECTION) !is 0) { + int bits = OS.LVS_EX_FULLROWSELECT; + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, 0); + } + + /* Clear LVM_SETSELECTEDCOLUMN */ + if ((sortDirection & (DWT.UP | DWT.DOWN)) !is 0) { + if (sortColumn !is null && !sortColumn.isDisposed ()) { + OS.SendMessage (handle, OS.LVM_SETSELECTEDCOLUMN, -1, 0); + /* + * Bug in Windows. When LVM_SETSELECTEDCOLUMN is set, Windows + * does not redraw either the new or the previous selected column. + * The fix is to force a redraw. + */ + OS.InvalidateRect (handle, null, true); + } + } + } + } else { + if (oldPixel is OS.CLR_NONE) { + Control control = findBackgroundControl (); + if (control is null) control = this; + if (control.backgroundImage is null) { + setBackgroundPixel (control.getBackgroundPixel ()); + } + + /* Set LVS_EX_FULLROWSELECT */ + if (!explorerTheme && (style & DWT.FULL_SELECTION) !is 0) { + if (!hooks (DWT.EraseItem) && !hooks (DWT.PaintItem)) { + int bits = OS.LVS_EX_FULLROWSELECT; + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, bits, bits); + } + } + + /* Set LVM_SETSELECTEDCOLUMN */ + if ((sortDirection & (DWT.UP | DWT.DOWN)) !is 0) { + if (sortColumn !is null && !sortColumn.isDisposed ()) { + int column = indexOf (sortColumn); + if (column !is -1) { + OS.SendMessage (handle, OS.LVM_SETSELECTEDCOLUMN, column, 0); + /* + * Bug in Windows. When LVM_SETSELECTEDCOLUMN is set, Windows + * does not redraw either the new or the previous selected column. + * The fix is to force a redraw. + */ + OS.InvalidateRect (handle, null, true); + } + } + } + } + } +} + +void setBounds (int x, int y, int width, int height, int flags, bool defer) { + /* + * Bug in Windows. If the table column widths are adjusted + * in WM_SIZE or WM_POSITIONCHANGED using LVM_SETCOLUMNWIDTH + * blank lines may be inserted at the top of the table. A + * call to LVM_GETTOPINDEX will return a negative number (this + * is an impossible result). Once the blank lines appear, + * there seems to be no way to get rid of them, other than + * destroying and recreating the table. The fix is to send + * the resize notification after the size has been changed in + * the operating system. + * + * NOTE: This does not fix the case when the user is resizing + * columns dynamically. There is no fix for this case at this + * time. + */ + setDeferResize (true); + super.setBounds (x, y, width, height, flags, false); + setDeferResize (false); +} + +/** + * Sets the order that the items in the receiver should + * be displayed in to the given argument which is described + * in terms of the zero-relative ordering of when the items + * were added. + * + * @param order the new order to display the items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item order is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item order is not the same length as the number of items</li> + * </ul> + * + * @see Table#getColumnOrder() + * @see TableColumn#getMoveable() + * @see TableColumn#setMoveable(bool) + * @see DWT#Move + * + * @since 3.1 + */ +public void setColumnOrder (int [] order) { + checkWidget (); + if (order is null) error (DWT.ERROR_NULL_ARGUMENT); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (columnCount is 0) { + if (order.length !is 0) error (DWT.ERROR_INVALID_ARGUMENT); + return; + } + if (order.length !is columnCount) error (DWT.ERROR_INVALID_ARGUMENT); + int [] oldOrder = new int [columnCount]; + OS.SendMessage (handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, oldOrder); + bool reorder = false; + bool [] seen = new bool [columnCount]; + for (int i=0; i<order.length; i++) { + int index = order [i]; + if (index < 0 || index >= columnCount) error (DWT.ERROR_INVALID_RANGE); + if (seen [index]) error (DWT.ERROR_INVALID_ARGUMENT); + seen [index] = true; + if (index !is oldOrder [i]) reorder = true; + } + if (reorder) { + RECT [] oldRects = new RECT [columnCount]; + for (int i=0; i<columnCount; i++) { + oldRects [i] = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, oldRects [i]); + } + OS.SendMessage (handle, OS.LVM_SETCOLUMNORDERARRAY, order.length, order); + /* + * Bug in Windows. When LVM_SETCOLUMNORDERARRAY is used to change + * the column order, the header redraws correctly but the table does + * not. The fix is to force a redraw. + */ + OS.InvalidateRect (handle, null, true); + TableColumn[] newColumns = new TableColumn [columnCount]; + System.arraycopy (columns, 0, newColumns, 0, columnCount); + RECT newRect = new RECT (); + for (int i=0; i<columnCount; i++) { + TableColumn column = newColumns [i]; + if (!column.isDisposed ()) { + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, newRect); + if (newRect.left !is oldRects [i].left) { + column.updateToolTip (i); + column.sendEvent (DWT.Move); + } + } + } + } +} + +void setCustomDraw (bool customDraw) { + if (this.customDraw is customDraw) return; + if (!this.customDraw && customDraw && currentItem !is null) { + OS.InvalidateRect (handle, null, true); + } + this.customDraw = customDraw; +} + +void setDeferResize (bool defer) { + if (defer) { + if (resizeCount++ is 0) { + wasResized = false; + if (hooks (DWT.MeasureItem) || hooks (DWT.EraseItem) || hooks (DWT.PaintItem)) { + if (drawCount++ is 0 && OS.IsWindowVisible (handle)) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + } + } + } else { + if (--resizeCount is 0) { + if (hooks (DWT.MeasureItem) || hooks (DWT.EraseItem) || hooks (DWT.PaintItem)) { + if (--drawCount is 0 /*&& OS.IsWindowVisible (handle)*/) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + if (OS.IsWinCE) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader !is 0) OS.InvalidateRect (hwndHeader, null, true); + OS.InvalidateRect (handle, null, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } + } + } + if (wasResized) { + wasResized = false; + setResizeChildren (false); + sendEvent (DWT.Resize); + if (isDisposed ()) return; + if (layout !is null) { + markLayout (false, false); + updateLayout (false, false); + } + setResizeChildren (true); + } + } + } +} + +void setCheckboxImageList (int width, int height, bool fixScroll) { + if ((style & DWT.CHECK) is 0) return; + int count = 4, flags = 0; + if (OS.IsWinCE) { + flags |= OS.ILC_COLOR; + } else { + int hDC = OS.GetDC (handle); + int bits = OS.GetDeviceCaps (hDC, OS.BITSPIXEL); + int planes = OS.GetDeviceCaps (hDC, OS.PLANES); + OS.ReleaseDC (handle, hDC); + int depth = bits * planes; + switch (depth) { + case 4: flags |= OS.ILC_COLOR4; break; + case 8: flags |= OS.ILC_COLOR8; break; + case 16: flags |= OS.ILC_COLOR16; break; + case 24: flags |= OS.ILC_COLOR24; break; + case 32: flags |= OS.ILC_COLOR32; break; + default: flags |= OS.ILC_COLOR; break; + } + } + if ((style & DWT.RIGHT_TO_LEFT) !is 0) flags |= OS.ILC_MIRROR; + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) flags |= OS.ILC_MASK; + int hStateList = OS.ImageList_Create (width, height, flags, count, count); + int hDC = OS.GetDC (handle); + int memDC = OS.CreateCompatibleDC (hDC); + int hBitmap = OS.CreateCompatibleBitmap (hDC, width * count, height); + int hOldBitmap = OS.SelectObject (memDC, hBitmap); + RECT rect = new RECT (); + OS.SetRect (rect, 0, 0, width * count, height); + int clrBackground; + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + Control control = findBackgroundControl (); + if (control is null) control = this; + clrBackground = control.getBackgroundPixel (); + } else { + clrBackground = 0x020000FF; + if ((clrBackground & 0xFFFFFF) is OS.GetSysColor (OS.COLOR_WINDOW)) { + clrBackground = 0x0200FF00; + } + } + int hBrush = OS.CreateSolidBrush (clrBackground); + OS.FillRect (memDC, rect, hBrush); + OS.DeleteObject (hBrush); + int oldFont = OS.SelectObject (hDC, defaultFont ()); + TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, tm); + OS.SelectObject (hDC, oldFont); + int itemWidth = Math.min (tm.tmHeight, width); + int itemHeight = Math.min (tm.tmHeight, height); + int left = (width - itemWidth) / 2, top = (height - itemHeight) / 2 + 1; + OS.SetRect (rect, left, top, left + itemWidth, top + itemHeight); + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + int hTheme = display.hButtonTheme (); + OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null); + rect.left += width; rect.right += width; + OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_CHECKEDNORMAL, rect, null); + rect.left += width; rect.right += width; + OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null); + rect.left += width; rect.right += width; + OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_MIXEDNORMAL, rect, null); + } else { + OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_FLAT); + rect.left += width; rect.right += width; + OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_FLAT); + rect.left += width; rect.right += width; + OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_INACTIVE | OS.DFCS_FLAT); + rect.left += width; rect.right += width; + OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_INACTIVE | OS.DFCS_FLAT); + } + OS.SelectObject (memDC, hOldBitmap); + OS.DeleteDC (memDC); + OS.ReleaseDC (handle, hDC); + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + OS.ImageList_Add (hStateList, hBitmap, 0); + } else { + OS.ImageList_AddMasked (hStateList, hBitmap, clrBackground); + } + OS.DeleteObject (hBitmap); + /* + * Bug in Windows. Making any change to an item that + * changes the item height of a table while the table + * is scrolled can cause the lines to draw incorrectly. + * This happens even when the lines are not currently + * visible and are shown afterwards. The fix is to + * save the top index, scroll to the top of the table + * and then restore the original top index. + */ + int topIndex = getTopIndex (); + if (fixScroll && topIndex !is 0) { + setRedraw (false); + setTopIndex (0); + } + int hOldStateList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_STATE, hStateList); + if (hOldStateList !is 0) OS.ImageList_Destroy (hOldStateList); + /* + * Bug in Windows. Setting the LVSIL_STATE state image list + * when the table already has a LVSIL_SMALL image list causes + * pixel corruption of the images. The fix is to reset the + * LVSIL_SMALL image list. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + int hImageList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0); + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, hImageList); + } + if (fixScroll && topIndex !is 0) { + setTopIndex (topIndex); + setRedraw (true); + } +} + +void setFocusIndex (int index) { +// checkWidget (); + /* + * An index of -1 will apply the change to all + * items. Ensure that index is greater than -1. + */ + if (index < 0) return; + LVITEM lvItem = new LVITEM (); + lvItem.state = OS.LVIS_FOCUSED; + lvItem.stateMask = OS.LVIS_FOCUSED; + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, index, lvItem); + ignoreSelect = false; + OS.SendMessage (handle, OS.LVM_SETSELECTIONMARK, 0, index); +} + +public void setFont (Font font) { + checkWidget (); + /* + * Bug in Windows. Making any change to an item that + * changes the item height of a table while the table + * is scrolled can cause the lines to draw incorrectly. + * This happens even when the lines are not currently + * visible and are shown afterwards. The fix is to + * save the top index, scroll to the top of the table + * and then restore the original top index. + */ + int topIndex = getTopIndex (); + if (topIndex !is 0) { + setRedraw (false); + setTopIndex (0); + } + if (itemHeight !is -1) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + OS.SetWindowLong (handle, OS.GWL_STYLE, bits | OS.LVS_OWNERDRAWFIXED); + } + super.setFont (font); + if (itemHeight !is -1) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + OS.SetWindowLong (handle, OS.GWL_STYLE, bits & ~OS.LVS_OWNERDRAWFIXED); + } + setScrollWidth (null, true); + if (topIndex !is 0) { + setTopIndex (topIndex); + setRedraw (true); + } + + /* + * Bug in Windows. Setting the font will cause the table + * to be redrawn but not the column headers. The fix is + * to force a redraw of the column headers. + */ + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.InvalidateRect (hwndHeader, null, true); +} + +void setForegroundPixel (int pixel) { + /* + * The Windows table control uses CLR_DEFAULT to indicate + * that it is using the default foreground color. This + * is undocumented. + */ + if (pixel is -1) pixel = OS.CLR_DEFAULT; + OS.SendMessage (handle, OS.LVM_SETTEXTCOLOR, 0, pixel); + + /* + * Feature in Windows. When the foreground color is + * changed, the table does not redraw until the next + * WM_PAINT. The fix is to force a redraw. + */ + OS.InvalidateRect (handle, null, true); +} + +/** + * Marks the receiver's header as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param show the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setHeaderVisible (bool show) { + checkWidget (); + int newBits = OS.GetWindowLong (handle, OS.GWL_STYLE); + newBits &= ~OS.LVS_NOCOLUMNHEADER; + if (!show) newBits |= OS.LVS_NOCOLUMNHEADER; + /* + * Feature in Windows. Setting or clearing LVS_NOCOLUMNHEADER + * causes the table to scroll to the beginning. The fix is to + * save and restore the top index causing the table to scroll + * to the new location. + */ + int oldIndex = getTopIndex (); + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + + /* + * Bug in Windows. Making any change to an item that + * changes the item height of a table while the table + * is scrolled can cause the lines to draw incorrectly. + * This happens even when the lines are not currently + * visible and are shown afterwards. The fix is to + * save the top index, scroll to the top of the table + * and then restore the original top index. + */ + int newIndex = getTopIndex (); + if (newIndex !is 0) { + setRedraw (false); + setTopIndex (0); + } + if (show) { + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_GRIDLINES) !is 0) fixItemHeight (false); + } + setTopIndex (oldIndex); + if (newIndex !is 0) { + setRedraw (true); + } + updateHeaderToolTips (); +} + +/** + * Sets the number of items contained in the receiver. + * + * @param count the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void setItemCount (int count) { + checkWidget (); + count = Math.max (0, count); + int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (count is itemCount) return; + setDeferResize (true); + bool isVirtual = (style & DWT.VIRTUAL) !is 0; + if (!isVirtual) setRedraw (false); + int index = count; + while (index < itemCount) { + TableItem item = items [index]; + if (item !is null && !item.isDisposed ()) item.release (false); + if (!isVirtual) { + ignoreSelect = ignoreShrink = true; + int code = OS.SendMessage (handle, OS.LVM_DELETEITEM, count, 0); + ignoreSelect = ignoreShrink = false; + if (code is 0) break; + } + index++; + } + if (index < itemCount) error (DWT.ERROR_ITEM_NOT_REMOVED); + int length = Math.max (4, (count + 3) / 4 * 4); + TableItem [] newItems = new TableItem [length]; + System.arraycopy (items, 0, newItems, 0, Math.min (count, itemCount)); + items = newItems; + if (isVirtual) { + int flags = OS.LVSICF_NOINVALIDATEALL | OS.LVSICF_NOSCROLL; + OS.SendMessage (handle, OS.LVM_SETITEMCOUNT, count, flags); + /* + * Bug in Windows. When a virtual table contains items and + * LVM_SETITEMCOUNT is used to set the new item count to zero, + * Windows does not redraw the table. Note that simply not + * specifying LVSICF_NOINVALIDATEALL or LVSICF_NOSCROLL does + * correct the problem. The fix is to force a redraw. + */ + if (count is 0 && itemCount !is 0) { + OS.InvalidateRect (handle, null, true); + } + } else { + for (int i=itemCount; i<count; i++) { + items [i] = new TableItem (this, DWT.NONE, i, true); + } + } + if (!isVirtual) setRedraw (true); + if (itemCount is 0) setScrollWidth (null, false); + setDeferResize (false); +} + +void setItemHeight (bool fixScroll) { + /* + * Bug in Windows. Making any change to an item that + * changes the item height of a table while the table + * is scrolled can cause the lines to draw incorrectly. + * This happens even when the lines are not currently + * visible and are shown afterwards. The fix is to + * save the top index, scroll to the top of the table + * and then restore the original top index. + */ + int topIndex = getTopIndex (); + if (fixScroll && topIndex !is 0) { + setRedraw (false); + setTopIndex (0); + } + if (itemHeight is -1) { + /* + * Feature in Windows. Windows has no API to restore the + * defualt item height for a table. The fix is to use + * WM_SETFONT which recomputes and assigns the default item + * height. + */ + int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0); + } else { + /* + * Feature in Windows. Window has no API to set the item + * height for a table. The fix is to set temporarily set + * LVS_OWNERDRAWFIXED then resize the table, causing a + * WM_MEASUREITEM to be sent, then clear LVS_OWNERDRAWFIXED. + */ + forceResize (); + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + OS.SetWindowLong (handle, OS.GWL_STYLE, bits | OS.LVS_OWNERDRAWFIXED); + int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOREDRAW | OS.SWP_NOZORDER; + ignoreResize = true; + SetWindowPos (handle, 0 , 0, 0, width, height + 1, flags); + SetWindowPos (handle, 0 , 0, 0, width, height, flags); + ignoreResize = false; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + } + if (fixScroll && topIndex !is 0) { + setTopIndex (topIndex); + setRedraw (true); + } +} + +/** + * Sets the height of the area which would be used to + * display <em>one</em> of the items in the table. + * + * @param itemHeight the height of one item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +/*public*/ void setItemHeight (int itemHeight) { + checkWidget (); + if (itemHeight < -1) error (DWT.ERROR_INVALID_ARGUMENT); + this.itemHeight = itemHeight; + setItemHeight (true); + setScrollWidth (null, true); +} + +/** + * Marks the receiver's lines as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param show the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLinesVisible (bool show) { + checkWidget (); + int newBits = show ? OS.LVS_EX_GRIDLINES : 0; + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_GRIDLINES, newBits); + if (show) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.LVS_NOCOLUMNHEADER) is 0) fixItemHeight (true); + } +} + +public void setRedraw (bool redraw) { + checkWidget (); + /* + * Feature in Windows. When WM_SETREDRAW is used to turn + * off drawing in a widget, it clears the WS_VISIBLE bits + * and then sets them when redraw is turned back on. This + * means that WM_SETREDRAW will make a widget unexpectedly + * visible. The fix is to track the visibility state while + * drawing is turned off and restore it when drawing is turned + * back on. + */ + if (drawCount is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.WS_VISIBLE) is 0) state |= HIDDEN; + } + if (redraw) { + if (--drawCount is 0) { + /* + * When many items are added to a table, it is faster to + * temporarily unsubclass the window proc so that messages + * are dispatched directly to the table. + * + * NOTE: This is optimization somewhat dangerous because any + * operation can occur when redraw is turned off, even operations + * where the table must be subclassed in order to have the correct + * behavior or work around a Windows bug. + * + * This code is intentionally commented. + */ +// subclass (); + + /* Set the width of the horizontal scroll bar */ + setScrollWidth (null, true); + + /* + * Bug in Windows. For some reason, when WM_SETREDRAW is used + * to turn redraw back on this may result in a WM_SIZE. If the + * table column widths are adjusted in WM_SIZE, blank lines may + * be inserted at the top of the widget. A call to LVM_GETTOPINDEX + * will return a negative number (this is an impossible result). + * The fix is to send the resize notification after the size has + * been changed in the operating system. + */ + setDeferResize (true); + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader !is 0) OS.SendMessage (hwndHeader, OS.WM_SETREDRAW, 1, 0); + if ((state & HIDDEN) !is 0) { + state &= ~HIDDEN; + OS.ShowWindow (handle, OS.SW_HIDE); + } else { + if (OS.IsWinCE) { + OS.InvalidateRect (handle, null, false); + if (hwndHeader !is 0) { + OS.InvalidateRect (hwndHeader, null, false); + } + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } + } + setDeferResize (false); + } + } else { + if (drawCount++ is 0) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader !is 0) OS.SendMessage (hwndHeader, OS.WM_SETREDRAW, 0, 0); + + /* + * When many items are added to a table, it is faster to + * temporarily unsubclass the window proc so that messages + * are dispatched directly to the table. + * + * NOTE: This is optimization somewhat dangerous because any + * operation can occur when redraw is turned off, even operations + * where the table must be subclassed in order to have the correct + * behavior or work around a Windows bug. + * + * This code is intentionally commented. + */ +// unsubclass (); + } + } +} + +bool setScrollWidth (TableItem item, bool force) { + if (currentItem !is null) { + if (currentItem !is item) fixScrollWidth = true; + return false; + } + if (!force && (drawCount !is 0 || !OS.IsWindowVisible (handle))) { + fixScrollWidth = true; + return false; + } + fixScrollWidth = false; + /* + * NOTE: It is much faster to measure the strings and compute the + * width of the scroll bar in non-virtual table rather than using + * LVM_SETCOLUMNWIDTH with LVSCW_AUTOSIZE. + */ + if (columnCount is 0) { + int newWidth = 0, imageIndent = 0, index = 0; + int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + while (index < itemCount) { + String string = null; + int font = -1; + if (item !is null) { + string = item.text; + imageIndent = Math.max (imageIndent, item.imageIndent); + if (item.cellFont !is null) font = item.cellFont [0]; + if (font is -1) font = item.font; + } else { + if (items [index] !is null) { + TableItem tableItem = items [index]; + string = tableItem.text; + imageIndent = Math.max (imageIndent, tableItem.imageIndent); + if (tableItem.cellFont !is null) font = tableItem.cellFont [0]; + if (font is -1) font = tableItem.font; + } + } + if (string !is null && string.length () !is 0) { + if (font !is -1) { + int hDC = OS.GetDC (handle); + int oldFont = OS.SelectObject (hDC, font); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + TCHAR buffer = new TCHAR (getCodePage (), string, false); + RECT rect = new RECT (); + OS.DrawText (hDC, buffer, buffer.length (), rect, flags); + OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + newWidth = Math.max (newWidth, rect.right - rect.left); + } else { + TCHAR buffer = new TCHAR (getCodePage (), string, true); + newWidth = Math.max (newWidth, OS.SendMessage (handle, OS.LVM_GETSTRINGWIDTH, 0, buffer)); + } + } + if (item !is null) break; + index++; + } + /* + * Bug in Windows. When the width of the first column is + * small but not zero, Windows draws '...' outside of the + * bounds of the text. This is strange, but only causes + * problems when the item is selected. In this case, Windows + * clears the '...' but doesn't redraw it when the item is + * deselected, causing pixel corruption. The fix is to ensure + * that the column is at least wide enough to draw a single + * space. + */ + if (newWidth is 0) { + TCHAR buffer = new TCHAR (getCodePage (), " ", true); + newWidth = Math.max (newWidth, OS.SendMessage (handle, OS.LVM_GETSTRINGWIDTH, 0, buffer)); + } + int hStateList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); + if (hStateList !is 0) { + int [] cx = new int [1], cy = new int [1]; + OS.ImageList_GetIconSize (hStateList, cx, cy); + newWidth += cx [0] + INSET; + } + int hImageList = OS.SendMessage (handle, OS.LVM_GETIMAGELIST, OS.LVSIL_SMALL, 0); + if (hImageList !is 0) { + int [] cx = new int [1], cy = new int [1]; + OS.ImageList_GetIconSize (hImageList, cx, cy); + newWidth += (imageIndent + 1) * cx [0]; + } else { + /* + * Bug in Windows. When LVM_SETIMAGELIST is used to remove the + * image list by setting it to NULL, the item width and height + * is not changed and space is reserved for icons despite the + * fact that there are none. The fix is to set the image list + * to be very small before setting it to NULL. This causes + * Windows to reserve the smallest possible space when an image + * list is removed. In this case, the scroll width must be one + * pixel larger. + */ + newWidth++; + } + newWidth += INSET * 2; + int oldWidth = OS.SendMessage (handle, OS.LVM_GETCOLUMNWIDTH, 0, 0); + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + newWidth += VISTA_EXTRA; + } + if (newWidth > oldWidth) { + /* + * Feature in Windows. When LVM_SETCOLUMNWIDTH is sent, + * Windows draws right away instead of queuing a WM_PAINT. + * This can cause recursive calls when called from paint + * or from messages that are retrieving the item data, + * such as WM_NOTIFY, causing a stack overflow. The fix + * is to turn off redraw and queue a repaint, collapsing + * the recursive calls. + */ + bool redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + OS.SendMessage (handle, OS.LVM_SETCOLUMNWIDTH, 0, newWidth); + if (redraw) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + if (OS.IsWinCE) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hwndHeader !is 0) OS.InvalidateRect (hwndHeader, null, true); + OS.InvalidateRect (handle, null, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } + } + return true; + } + } + return false; +} + +/** + * Selects the items at the given zero-relative indices in the receiver. + * The current selection is cleared before the new items are selected. + * <p> + * Indices that are out of range and duplicate indices are ignored. + * If the receiver is single-select and multiple indices are specified, + * then all indices are ignored. + * </p> + * + * @param indices the indices of the items to select + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of indices is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#deselectAll() + * @see Table#select(int[]) + */ +public void setSelection (int [] indices) { + checkWidget (); + if (indices is null) error (DWT.ERROR_NULL_ARGUMENT); + deselectAll (); + int length = indices.length; + if (length is 0 || ((style & DWT.SINGLE) !is 0 && length > 1)) return; + select (indices); + int focusIndex = indices [0]; + if (focusIndex !is -1) setFocusIndex (focusIndex); + showSelection (); +} + +/** + * Sets the receiver's selection to the given item. + * The current selection is cleared before the new item is selected. + * <p> + * If the item is not in the receiver, then it is ignored. + * </p> + * + * @param item the item to select + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setSelection (TableItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + setSelection (new TableItem [] {item}); +} + +/** + * Sets the receiver's selection to be the given array of items. + * The current selection is cleared before the new items are selected. + * <p> + * Items that are not in the receiver are ignored. + * If the receiver is single-select and multiple items are specified, + * then all items are ignored. + * </p> + * + * @param items the array of items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of items is null</li> + * <li>ERROR_INVALID_ARGUMENT - if one of the items has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#deselectAll() + * @see Table#select(int[]) + * @see Table#setSelection(int[]) + */ +public void setSelection (TableItem [] items) { + checkWidget (); + if (items is null) error (DWT.ERROR_NULL_ARGUMENT); + deselectAll (); + int length = items.length; + if (length is 0 || ((style & DWT.SINGLE) !is 0 && length > 1)) return; + int focusIndex = -1; + for (int i=length-1; i>=0; --i) { + int index = indexOf (items [i]); + if (index !is -1) { + select (focusIndex = index); + } + } + if (focusIndex !is -1) setFocusIndex (focusIndex); + showSelection (); +} + +/** + * Selects the item at the given zero-relative index in the receiver. + * The current selection is first cleared, then the new item is selected. + * + * @param index the index of the item to select + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#deselectAll() + * @see Table#select(int) + */ +public void setSelection (int index) { + checkWidget (); + deselectAll (); + select (index); + if (index !is -1) setFocusIndex (index); + showSelection (); +} + +/** + * Selects the items in the range specified by the given zero-relative + * indices in the receiver. The range of indices is inclusive. + * The current selection is cleared before the new items are selected. + * <p> + * Indices that are out of range are ignored and no items will be selected + * if start is greater than end. + * If the receiver is single-select and there is more than one item in the + * given range, then all indices are ignored. + * </p> + * + * @param start the start index of the items to select + * @param end the end index of the items to select + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#deselectAll() + * @see Table#select(int,int) + */ +public void setSelection (int start, int end) { + checkWidget (); + deselectAll (); + if (end < 0 || start > end || ((style & DWT.SINGLE) !is 0 && start !is end)) return; + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (count is 0 || start >= count) return; + start = Math.max (0, start); + end = Math.min (end, count - 1); + select (start, end); + setFocusIndex (start); + showSelection (); +} + +/** + * Sets the column used by the sort indicator for the receiver. A null + * value will clear the sort indicator. The current sort column is cleared + * before the new column is set. + * + * @param column the column used by the sort indicator or <code>null</code> + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the column is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setSortColumn (TableColumn column) { + checkWidget (); + if (column !is null && column.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + if (sortColumn !is null && !sortColumn.isDisposed ()) { + sortColumn.setSortDirection (DWT.NONE); + } + sortColumn = column; + if (sortColumn !is null && sortDirection !is DWT.NONE) { + sortColumn.setSortDirection (sortDirection); + } +} + +/** + * Sets the direction of the sort indicator for the receiver. The value + * can be one of <code>UP</code>, <code>DOWN</code> or <code>NONE</code>. + * + * @param direction the direction of the sort indicator + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setSortDirection (int direction) { + checkWidget (); + if ((direction & (DWT.UP | DWT.DOWN)) is 0 && direction !is DWT.NONE) return; + sortDirection = direction; + if (sortColumn !is null && !sortColumn.isDisposed ()) { + sortColumn.setSortDirection (direction); + } +} + +void setSubImagesVisible (bool visible) { + int dwExStyle = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((dwExStyle & OS.LVS_EX_SUBITEMIMAGES) !is 0 is visible) return; + int bits = visible ? OS.LVS_EX_SUBITEMIMAGES : 0; + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_SUBITEMIMAGES, bits); +} + +void setTableEmpty () { + if (imageList !is null) { + /* + * Bug in Windows. When LVM_SETIMAGELIST is used to remove the + * image list by setting it to NULL, the item width and height + * is not changed and space is reserved for icons despite the + * fact that there are none. The fix is to set the image list + * to be very small before setting it to NULL. This causes + * Windows to reserve the smallest possible space when an image + * list is removed. + */ + int hImageList = OS.ImageList_Create (1, 1, 0, 0, 0); + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, hImageList); + OS.SendMessage (handle, OS.LVM_SETIMAGELIST, OS.LVSIL_SMALL, 0); + if (headerImageList !is null) { + int hHeaderImageList = headerImageList.getHandle (); + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, hHeaderImageList); + } + OS.ImageList_Destroy (hImageList); + display.releaseImageList (imageList); + imageList = null; + if (itemHeight !is -1) setItemHeight (false); + } + if (!hooks (DWT.MeasureItem) && !hooks (DWT.EraseItem) && !hooks (DWT.PaintItem)) { + Control control = findBackgroundControl (); + if (control is null) control = this; + if (control.backgroundImage is null) { + setCustomDraw (false); + setBackgroundTransparent (false); + if (OS.COMCTL32_MAJOR < 6) style &= ~DWT.DOUBLE_BUFFERED; + } + } + items = new TableItem [4]; + if (columnCount is 0) { + OS.SendMessage (handle, OS.LVM_SETCOLUMNWIDTH, 0, 0); + setScrollWidth (null, false); + } +} + +/** + * Sets the zero-relative index of the item which is currently + * at the top of the receiver. This index can change when items + * are scrolled or new items are added and removed. + * + * @param index the index of the top item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setTopIndex (int index) { + checkWidget (); + int topIndex = OS.SendMessage (handle, OS.LVM_GETTOPINDEX, 0, 0); + if (index is topIndex) return; + + /* + * Bug in Windows. For some reason, LVM_SCROLL refuses to + * scroll a table vertically when the width and height of + * the table is smaller than a certain size. The values + * that seem to cause the problem are width=68 and height=6 + * but there is no guarantee that these values cause the + * failure on different machines or on different versions + * of Windows. It may depend on the font and any number + * of other factors. For example, setting the font to + * anything but the default sometimes fixes the problem. + * The fix is to use LVM_GETCOUNTPERPAGE to detect the + * case when the number of visible items is zero and + * use LVM_ENSUREVISIBLE to scroll the table to make the + * index visible. + */ + + /* + * Bug in Windows. When the table header is visible and + * there is not enough space to show a single table item, + * LVM_GETCOUNTPERPAGE can return a negative number instead + * of zero. The fix is to test for negative or zero. + */ + if (OS.SendMessage (handle, OS.LVM_GETCOUNTPERPAGE, 0, 0) <= 0) { + /* + * Bug in Windows. For some reason, LVM_ENSUREVISIBLE can + * scroll one item more or one item less when there is not + * enough space to show a single table item. The fix is + * to detect the case and call LVM_ENSUREVISIBLE again with + * the same arguments. It seems that once LVM_ENSUREVISIBLE + * has scrolled into the general area, it is able to scroll + * to the exact item. + */ + OS.SendMessage (handle, OS.LVM_ENSUREVISIBLE, index, 1); + if (index !is OS.SendMessage (handle, OS.LVM_GETTOPINDEX, 0, 0)) { + OS.SendMessage (handle, OS.LVM_ENSUREVISIBLE, index, 1); + } + return; + } + + /* Use LVM_SCROLL to scroll the table */ + RECT rect = new RECT (); + rect.left = OS.LVIR_BOUNDS; + ignoreCustomDraw = true; + OS.SendMessage (handle, OS.LVM_GETITEMRECT, 0, rect); + ignoreCustomDraw = false; + int dy = (index - topIndex) * (rect.bottom - rect.top); + OS.SendMessage (handle, OS.LVM_SCROLL, 0, dy); +} + +/** + * Shows the column. If the column is already showing in the receiver, + * this method simply returns. Otherwise, the columns are scrolled until + * the column is visible. + * + * @param column the column to be shown + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the column is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the column has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void showColumn (TableColumn column) { + checkWidget (); + if (column is null) error (DWT.ERROR_NULL_ARGUMENT); + if (column.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + if (column.parent !is this) return; + int index = indexOf (column); + if (!(0 <= index && index < columnCount)) return; + /* + * Feature in Windows. Calling LVM_GETSUBITEMRECT with -1 for the + * row number gives the bounds of the item that would be above the + * first row in the table. This is undocumented and does not work + * for the first column. In this case, to get the bounds of the + * first column, get the bounds of the second column and subtract + * the width of the first. The left edge of the second column is + * also used as the right edge of the first. + */ + RECT itemRect = new RECT (); + itemRect.left = OS.LVIR_BOUNDS; + if (index is 0) { + itemRect.top = 1; + ignoreCustomDraw = true; + OS.SendMessage (handle, OS.LVM_GETSUBITEMRECT, -1, itemRect); + ignoreCustomDraw = false; + itemRect.right = itemRect.left; + int width = OS.SendMessage (handle, OS.LVM_GETCOLUMNWIDTH, 0, 0); + itemRect.left = itemRect.right - width; + } else { + itemRect.top = index; + ignoreCustomDraw = true; + OS.SendMessage (handle, OS.LVM_GETSUBITEMRECT, -1, itemRect); + ignoreCustomDraw = false; + } + /* + * Bug in Windows. When a table that is drawing grid lines + * is slowly scrolled horizontally to the left, the table does + * not redraw the newly exposed vertical grid lines. The fix + * is to save the old scroll position, call the window proc, + * get the new scroll position and redraw the new area. + */ + int oldPos = 0; + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_GRIDLINES) !is 0) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + OS.GetScrollInfo (handle, OS.SB_HORZ, info); + oldPos = info.nPos; + } + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + if (itemRect.left < rect.left) { + int dx = itemRect.left - rect.left; + OS.SendMessage (handle, OS.LVM_SCROLL, dx, 0); + } else { + int width = Math.min (rect.right - rect.left, itemRect.right - itemRect.left); + if (itemRect.left + width > rect.right) { + int dx = itemRect.left + width - rect.right; + OS.SendMessage (handle, OS.LVM_SCROLL, dx, 0); + } + } + /* + * Bug in Windows. When a table that is drawing grid lines + * is slowly scrolled horizontally to the left, the table does + * not redraw the newly exposed vertical grid lines. The fix + * is to save the old scroll position, call the window proc, + * get the new scroll position and redraw the new area. + */ + if ((bits & OS.LVS_EX_GRIDLINES) !is 0) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + OS.GetScrollInfo (handle, OS.SB_HORZ, info); + int newPos = info.nPos; + if (newPos < oldPos) { + rect.right = oldPos - newPos + GRID_WIDTH; + OS.InvalidateRect (handle, rect, true); + } + } +} + +void showItem (int index) { + /* + * Bug in Windows. For some reason, when there is insufficient space + * to show an item, LVM_ENSUREVISIBLE causes blank lines to be + * inserted at the top of the widget. A call to LVM_GETTOPINDEX will + * return a negative number (this is an impossible result). The fix + * is to use LVM_GETCOUNTPERPAGE to detect the case when the number + * of visible items is zero and use LVM_ENSUREVISIBLE with the + * fPartialOK flag set to true to scroll the table. + */ + if (OS.SendMessage (handle, OS.LVM_GETCOUNTPERPAGE, 0, 0) <= 0) { + /* + * Bug in Windows. For some reason, LVM_ENSUREVISIBLE can + * scroll one item more or one item less when there is not + * enough space to show a single table item. The fix is + * to detect the case and call LVM_ENSUREVISIBLE again with + * the same arguments. It seems that once LVM_ENSUREVISIBLE + * has scrolled into the general area, it is able to scroll + * to the exact item. + */ + OS.SendMessage (handle, OS.LVM_ENSUREVISIBLE, index, 1); + if (index !is OS.SendMessage (handle, OS.LVM_GETTOPINDEX, 0, 0)) { + OS.SendMessage (handle, OS.LVM_ENSUREVISIBLE, index, 1); + } + } else { + OS.SendMessage (handle, OS.LVM_ENSUREVISIBLE, index, 0); + } +} + +/** + * Shows the item. If the item is already showing in the receiver, + * this method simply returns. Otherwise, the items are scrolled until + * the item is visible. + * + * @param item the item to be shown + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#showSelection() + */ +public void showItem (TableItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + int index = indexOf (item); + if (index !is -1) showItem (index); +} + +/** + * Shows the selection. If the selection is already showing in the receiver, + * this method simply returns. Otherwise, the items are scrolled until + * the selection is visible. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#showItem(TableItem) + */ +public void showSelection () { + checkWidget (); + int index = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_SELECTED); + if (index !is -1) showItem (index); +} + +/*public*/ void sort () { + checkWidget (); +// if ((style & DWT.VIRTUAL) !is 0) return; +// int itemCount = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); +// if (itemCount is 0 || itemCount is 1) return; +// Comparator comparator = new Comparator () { +// int index = sortColumn is null ? 0 : indexOf (sortColumn); +// public int compare (Object object1, Object object2) { +// TableItem item1 = (TableItem) object1, item2 = (TableItem) object2; +// if (sortDirection is DWT.UP || sortDirection is DWT.NONE) { +// return item1.getText (index).compareTo (item2.getText (index)); +// } else { +// return item2.getText (index).compareTo (item1.getText (index)); +// } +// } +// }; +// Arrays.sort (items, 0, itemCount, comparator); +// redraw (); +} + +void subclass () { + super.subclass (); + if (HeaderProc !is 0) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, display.windowProc); + } +} + +String toolTipText (NMTTDISPINFO hdr) { + int hwndToolTip = OS.SendMessage (handle, OS.LVM_GETTOOLTIPS, 0, 0); + if (hwndToolTip is hdr.hwndFrom && toolTipText !is null) return ""; //$NON-NLS-1$ + if (headerToolTipHandle is hdr.hwndFrom) { + for (int i=0; i<columnCount; i++) { + TableColumn column = columns [i]; + if (column.id is hdr.idFrom) return column.toolTipText; + } + } + return super.toolTipText (hdr); +} + +void unsubclass () { + super.unsubclass (); + if (HeaderProc !is 0) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, HeaderProc); + } +} + +void update (bool all) { +// checkWidget (); + /* + * When there are many columns in a table, scrolling performance + * can be improved by temporarily unsubclassing the window proc + * so that internal messages are dispatched directly to the table. + * If the application expects to see a paint event or has a child + * whose font, foreground or background color might be needed, + * the window proc cannot be unsubclassed. + * + * NOTE: The header tooltip can subclass the header proc so the + * current proc must be restored or header tooltips stop working. + */ + int oldHeaderProc = 0, oldTableProc = 0; + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + bool fixSubclass = !hasChildren () && !hooks (DWT.Paint) && !filters (DWT.Paint); + if (fixSubclass) { + oldTableProc = OS.SetWindowLong (handle, OS.GWL_WNDPROC, TableProc); + oldHeaderProc = OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, HeaderProc); + } + super.update (all); + if (fixSubclass) { + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldTableProc); + OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, oldHeaderProc); + } +} + +void updateHeaderToolTips () { + if (headerToolTipHandle is 0) return; + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + RECT rect = new RECT (); + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.uFlags = OS.TTF_SUBCLASS; + lpti.hwnd = hwndHeader; + lpti.lpszText = OS.LPSTR_TEXTCALLBACK; + for (int i=0; i<columnCount; i++) { + TableColumn column = columns [i]; + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, rect) !is 0) { + lpti.uId = column.id = display.nextToolTipId++; + lpti.left = rect.left; + lpti.top = rect.top; + lpti.right = rect.right; + lpti.bottom = rect.bottom; + OS.SendMessage (headerToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); + } + } +} + +void updateImages () { + if (sortColumn !is null && !sortColumn.isDisposed ()) { + if (OS.COMCTL32_MAJOR < 6) { + switch (sortDirection) { + case DWT.UP: + case DWT.DOWN: + sortColumn.setImage (display.getSortImage (sortDirection), true, true); + break; + } + } + } +} + +void updateMoveable () { + int index = 0; + while (index < columnCount) { + if (columns [index].moveable) break; + index++; + } + int newBits = index < columnCount ? OS.LVS_EX_HEADERDRAGDROP : 0; + OS.SendMessage (handle, OS.LVM_SETEXTENDEDLISTVIEWSTYLE, OS.LVS_EX_HEADERDRAGDROP, newBits); +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.LVS_SHAREIMAGELISTS; + if ((style & DWT.HIDE_SELECTION) is 0) bits |= OS.LVS_SHOWSELALWAYS; + if ((style & DWT.SINGLE) !is 0) bits |= OS.LVS_SINGLESEL; + /* + * This code is intentionally commented. In the future, + * the FLAT bit may be used to make the header flat and + * unresponsive to mouse clicks. + */ +// if ((style & DWT.FLAT) !is 0) bits |= OS.LVS_NOSORTHEADER; + bits |= OS.LVS_REPORT | OS.LVS_NOCOLUMNHEADER; + if ((style & DWT.VIRTUAL) !is 0) bits |= OS.LVS_OWNERDATA; + return bits; +} + +TCHAR windowClass () { + return TableClass; +} + +int windowProc () { + return TableProc; +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + if (hwnd !is handle) { + switch (msg) { + /* This code is intentionally commented */ +// case OS.WM_CONTEXTMENU: { +// LRESULT result = wmContextMenu (hwnd, wParam, lParam); +// if (result !is null) return result.value; +// break; +// } + case OS.WM_CAPTURECHANGED: { + /* + * Bug in Windows. When the capture changes during a + * header drag, Windows does not redraw the header item + * such that the header remains pressed. For example, + * when focus is assigned to a push button, the mouse is + * pressed (but not released), then the SPACE key is + * pressed to activate the button, the capture changes, + * the header not notified and NM_RELEASEDCAPTURE is not + * sent. The fix is to redraw the header when the capture + * changes to another control. + * + * This does not happen on XP. + */ + if (OS.COMCTL32_MAJOR < 6) { + if (lParam !is 0) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (lParam !is hwndHeader) OS.InvalidateRect (hwndHeader, null, true); + } + } + break; + } + case OS.WM_MOUSELEAVE: { + /* + * Bug in Windows. On XP, when a tooltip is hidden + * due to a time out or mouse press, the tooltip + * remains active although no longer visible and + * won't show again until another tooltip becomes + * active. The fix is to reset the tooltip bounds. + */ + if (OS.COMCTL32_MAJOR >= 6) updateHeaderToolTips (); + updateHeaderToolTips (); + break; + } + case OS.WM_NOTIFY: { + NMHDR hdr = new NMHDR (); + OS.MoveMemory (hdr, lParam, NMHDR.sizeof); + switch (hdr.code) { + case OS.TTN_SHOW: + case OS.TTN_POP: + case OS.TTN_GETDISPINFOA: + case OS.TTN_GETDISPINFOW: + return OS.SendMessage (handle, msg, wParam, lParam); + } + break; + } + case OS.WM_SETCURSOR: { + if (wParam is hwnd) { + int hitTest = (short) (lParam & 0xFFFF); + if (hitTest is OS.HTCLIENT) { + HDHITTESTINFO pinfo = new HDHITTESTINFO (); + int pos = OS.GetMessagePos (); + POINT pt = new POINT (); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (hwnd, pt); + pinfo.x = pt.x; + pinfo.y = pt.y; + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + int index = OS.SendMessage (hwndHeader, OS.HDM_HITTEST, 0, pinfo); + if (0 <= index && index < columnCount && !columns [index].resizable) { + if ((pinfo.flags & (OS.HHT_ONDIVIDER | OS.HHT_ONDIVOPEN)) !is 0) { + OS.SetCursor (OS.LoadCursor (0, OS.IDC_ARROW)); + return 1; + } + } + } + } + break; + } + } + return callWindowProc (hwnd, msg, wParam, lParam); + } + return super.windowProc (hwnd, msg, wParam, lParam); +} + +LRESULT WM_CHAR (int wParam, int lParam) { + LRESULT result = super.WM_CHAR (wParam, lParam); + if (result !is null) return result; + switch (wParam) { + case ' ': + if ((style & DWT.CHECK) !is 0) { + int index = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); + if (index !is -1) { + TableItem item = _getItem (index); + item.setChecked (!item.getChecked (), true); + if (!OS.IsWinCE) { + OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, index + 1); + } + } + } + /* + * NOTE: Call the window proc with WM_KEYDOWN rather than WM_CHAR + * so that the key that was ignored during WM_KEYDOWN is processed. + * This allows the application to cancel an operation that is normally + * performed in WM_KEYDOWN from WM_CHAR. + */ + int code = callWindowProc (handle, OS.WM_KEYDOWN, wParam, lParam); + return new LRESULT (code); + case DWT.CR: + /* + * Feature in Windows. Windows sends LVN_ITEMACTIVATE from WM_KEYDOWN + * instead of WM_CHAR. This means that application code that expects + * to consume the key press and therefore avoid a DWT.DefaultSelection + * event will fail. The fix is to ignore LVN_ITEMACTIVATE when it is + * caused by WM_KEYDOWN and send DWT.DefaultSelection from WM_CHAR. + */ + int index = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); + if (index !is -1) { + Event event = new Event (); + event.item = _getItem (index); + postEvent (DWT.DefaultSelection, event); + } + return LRESULT.ZERO; + } + return result; +} + +LRESULT WM_CONTEXTMENU (int wParam, int lParam) { + /* + * Feature in Windows. For some reason, when the right + * mouse button is pressed over an item, Windows sends + * a WM_CONTEXTMENU from WM_RBUTTONDOWN, instead of from + * WM_RBUTTONUP. This causes two context menus requests + * to be sent. The fix is to ignore WM_CONTEXTMENU on + * mouse down. + * + * NOTE: This only happens when dragging is disabled. + * When the table is detecting drag, the WM_CONTEXTMENU + * is not sent WM_RBUTTONUP. + */ + if (!display.runDragDrop) return LRESULT.ZERO; + return super.WM_CONTEXTMENU (wParam, lParam); +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + if (findImageControl () !is null) return LRESULT.ONE; + if (OS.COMCTL32_MAJOR < 6) { + if ((style & DWT.DOUBLE_BUFFERED) !is 0) { + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_DOUBLEBUFFER) is 0) return LRESULT.ONE; + } + } + return result; +} + +LRESULT WM_GETOBJECT (int wParam, int lParam) { + /* + * Ensure that there is an accessible object created for this + * control because support for checked item accessibility is + * temporarily implemented in the accessibility package. + */ + if ((style & DWT.CHECK) !is 0) { + if (accessible is null) accessible = new_Accessible (this); + } + return super.WM_GETOBJECT (wParam, lParam); +} + +LRESULT WM_KEYDOWN (int wParam, int lParam) { + LRESULT result = super.WM_KEYDOWN (wParam, lParam); + if (result !is null) return result; + switch (wParam) { + case OS.VK_SPACE: + /* + * Ensure that the window proc does not process VK_SPACE + * so that it can be handled in WM_CHAR. This allows the + * application to cancel an operation that is normally + * performed in WM_KEYDOWN from WM_CHAR. + */ + return LRESULT.ZERO; + case OS.VK_ADD: + if (OS.GetKeyState (OS.VK_CONTROL) < 0) { + int index = 0; + while (index < columnCount) { + if (!columns [index].getResizable ()) break; + index++; + } + if (index !is columnCount || hooks (DWT.MeasureItem)) { + TableColumn [] newColumns = new TableColumn [columnCount]; + System.arraycopy (columns, 0, newColumns, 0, columnCount); + for (int i=0; i<newColumns.length; i++) { + TableColumn column = newColumns [i]; + if (!column.isDisposed () && column.getResizable ()) { + column.pack (); + } + } + return LRESULT.ZERO; + } + } + break; + case OS.VK_PRIOR: + case OS.VK_NEXT: + case OS.VK_HOME: + case OS.VK_END: + /* + * When there are many columns in a table, scrolling performance + * can be improved by temporarily unsubclassing the window proc + * so that internal messages are dispatched directly to the table. + * If the application expects to see a paint event, the window + * proc cannot be unsubclassed or the event will not be seen. + * + * NOTE: The header tooltip can subclass the header proc so the + * current proc must be restored or header tooltips stop working. + */ + int oldHeaderProc = 0, oldTableProc = 0; + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + bool fixSubclass = !hasChildren () && !hooks (DWT.Paint) && !filters (DWT.Paint); + if (fixSubclass) { + oldTableProc = OS.SetWindowLong (handle, OS.GWL_WNDPROC, TableProc); + oldHeaderProc = OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, HeaderProc); + } + int code = callWindowProc (handle, OS.WM_KEYDOWN, wParam, lParam); + result = code is 0 ? LRESULT.ZERO : new LRESULT (code); + if (fixSubclass) { + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldTableProc); + OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, oldHeaderProc); + } + //FALL THROUGH + case OS.VK_UP: + case OS.VK_DOWN: + OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); + break; + } + return result; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_KILLFOCUS (wParam, lParam); + /* + * Bug in Windows. When focus is lost, Windows does not + * redraw the selection properly, leaving the image and + * check box appearing selected. The fix is to redraw + * the table. + */ + if (imageList !is null || (style & DWT.CHECK) !is 0) { + OS.InvalidateRect (handle, null, false); + } + return result; +} + +LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) { + + /* + * Feature in Windows. When the user selects outside of + * a table item, Windows deselects all the items, even + * when the table is multi-select. While not strictly + * wrong, this is unexpected. The fix is to detect the + * case and avoid calling the window proc. + */ + LVHITTESTINFO pinfo = new LVHITTESTINFO (); + pinfo.x = (short) (lParam & 0xFFFF); + pinfo.y = (short) (lParam >> 16); + int index = OS.SendMessage (handle, OS.LVM_HITTEST, 0, pinfo); + Display display = this.display; + display.captureChanged = false; + sendMouseEvent (DWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); + if (!sendMouseEvent (DWT.MouseDoubleClick, 1, handle, OS.WM_LBUTTONDBLCLK, wParam, lParam)) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + if (pinfo.iItem !is -1) callWindowProc (handle, OS.WM_LBUTTONDBLCLK, wParam, lParam); + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + + /* Look for check/uncheck */ + if ((style & DWT.CHECK) !is 0) { + /* + * Note that when the table has LVS_EX_FULLROWSELECT and the + * user clicks anywhere on a row except on the check box, all + * of the bits are set. The hit test flags are LVHT_ONITEM. + * This means that a bit test for LVHT_ONITEMSTATEICON is not + * the correct way to determine that the user has selected + * the check box, equality is needed. + */ + if (index !is -1 && pinfo.flags is OS.LVHT_ONITEMSTATEICON) { + TableItem item = _getItem (index); + item.setChecked (!item.getChecked (), true); + if (!OS.IsWinCE) { + OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, index + 1); + } + } + } + return LRESULT.ZERO; +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + /* + * Feature in Windows. For some reason, capturing + * the mouse after processing the mouse event for the + * widget interferes with the normal mouse processing + * for the widget. The fix is to avoid the automatic + * mouse capture. + */ + LRESULT result = sendMouseDownEvent (DWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam); + if (result is LRESULT.ZERO) return result; + + /* Look for check/uncheck */ + if ((style & DWT.CHECK) !is 0) { + LVHITTESTINFO pinfo = new LVHITTESTINFO (); + pinfo.x = (short) (lParam & 0xFFFF); + pinfo.y = (short) (lParam >> 16); + /* + * Note that when the table has LVS_EX_FULLROWSELECT and the + * user clicks anywhere on a row except on the check box, all + * of the bits are set. The hit test flags are LVHT_ONITEM. + * This means that a bit test for LVHT_ONITEMSTATEICON is not + * the correct way to determine that the user has selected + * the check box, equality is needed. + */ + int index = OS.SendMessage (handle, OS.LVM_HITTEST, 0, pinfo); + if (index !is -1 && pinfo.flags is OS.LVHT_ONITEMSTATEICON) { + TableItem item = _getItem (index); + item.setChecked (!item.getChecked (), true); + if (!OS.IsWinCE) { + OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, index + 1); + } + } + } + return result; +} + +LRESULT WM_MOUSEHOVER (int wParam, int lParam) { + /* + * Feature in Windows. Despite the fact that hot + * tracking is not enabled, the hot tracking code + * in WM_MOUSEHOVER is executed causing the item + * under the cursor to be selected. The fix is to + * avoid calling the window proc. + */ + LRESULT result = super.WM_MOUSEHOVER (wParam, lParam); + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + int mask = OS.LVS_EX_ONECLICKACTIVATE | OS.LVS_EX_TRACKSELECT | OS.LVS_EX_TWOCLICKACTIVATE; + if ((bits & mask) !is 0) return result; + return LRESULT.ZERO; +} + +LRESULT WM_PAINT (int wParam, int lParam) { + if (!ignoreShrink) { + /* Resize the item array to match the item count */ + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (items.length > 4 && items.length - count > 3) { + int length = Math.max (4, (count + 3) / 4 * 4); + TableItem [] newItems = new TableItem [length]; + System.arraycopy (items, 0, newItems, 0, count); + items = newItems; + } + } + if (fixScrollWidth) setScrollWidth (null, true); + if (OS.COMCTL32_MAJOR < 6) { + if ((style & DWT.DOUBLE_BUFFERED) !is 0 || findImageControl () !is null) { + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_DOUBLEBUFFER) is 0) { + GC gc = null; + int paintDC = 0; + PAINTSTRUCT ps = new PAINTSTRUCT (); + bool hooksPaint = hooks (DWT.Paint); + if (hooksPaint) { + GCData data = new GCData (); + data.ps = ps; + data.hwnd = handle; + gc = GC.win32_new (this, data); + paintDC = gc.handle; + } else { + paintDC = OS.BeginPaint (handle, ps); + } + int width = ps.right - ps.left; + int height = ps.bottom - ps.top; + if (width !is 0 && height !is 0) { + int hDC = OS.CreateCompatibleDC (paintDC); + POINT lpPoint1 = new POINT (), lpPoint2 = new POINT (); + OS.SetWindowOrgEx (hDC, ps.left, ps.top, lpPoint1); + OS.SetBrushOrgEx (hDC, ps.left, ps.top, lpPoint2); + int hBitmap = OS.CreateCompatibleBitmap (paintDC, width, height); + int hOldBitmap = OS.SelectObject (hDC, hBitmap); + if (OS.SendMessage (handle, OS.LVM_GETBKCOLOR, 0, 0) !is OS.CLR_NONE) { + RECT rect = new RECT (); + OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); + drawBackground (hDC, rect); + } + callWindowProc (handle, OS.WM_PAINT, hDC, 0); + OS.SetWindowOrgEx (hDC, lpPoint1.x, lpPoint1.y, null); + OS.SetBrushOrgEx (hDC, lpPoint2.x, lpPoint2.y, null); + OS.BitBlt (paintDC, ps.left, ps.top, width, height, hDC, 0, 0, OS.SRCCOPY); + OS.SelectObject (hDC, hOldBitmap); + OS.DeleteObject (hBitmap); + OS.DeleteObject (hDC); + if (hooksPaint) { + Event event = new Event (); + event.gc = gc; + event.x = ps.left; + event.y = ps.top; + event.width = ps.right - ps.left; + event.height = ps.bottom - ps.top; + sendEvent (DWT.Paint, event); + // widget could be disposed at this point + event.gc = null; + } + } + if (hooksPaint) { + gc.dispose (); + } else { + OS.EndPaint (handle, ps); + } + return LRESULT.ZERO; + } + } + } + return super.WM_PAINT (wParam, lParam); +} + +LRESULT WM_RBUTTONDBLCLK (int wParam, int lParam) { + /* + * Feature in Windows. When the user selects outside of + * a table item, Windows deselects all the items, even + * when the table is multi-select. While not strictly + * wrong, this is unexpected. The fix is to detect the + * case and avoid calling the window proc. + */ + LVHITTESTINFO pinfo = new LVHITTESTINFO (); + pinfo.x = (short) (lParam & 0xFFFF); + pinfo.y = (short) (lParam >> 16); + OS.SendMessage (handle, OS.LVM_HITTEST, 0, pinfo); + Display display = this.display; + display.captureChanged = false; + sendMouseEvent (DWT.MouseDown, 3, handle, OS.WM_RBUTTONDOWN, wParam, lParam); + if (sendMouseEvent (DWT.MouseDoubleClick, 3, handle, OS.WM_RBUTTONDBLCLK, wParam, lParam)) { + if (pinfo.iItem !is -1) callWindowProc (handle, OS.WM_RBUTTONDBLCLK, wParam, lParam); + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; +} + +LRESULT WM_RBUTTONDOWN (int wParam, int lParam) { + /* + * Feature in Windows. For some reason, capturing + * the mouse after processing the mouse event for the + * widget interferes with the normal mouse processing + * for the widget. The fix is to avoid the automatic + * mouse capture. + */ + return sendMouseDownEvent (DWT.MouseDown, 3, OS.WM_RBUTTONDOWN, wParam, lParam); +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_SETFOCUS (wParam, lParam); + /* + * Bug in Windows. When focus is gained after the + * selection has been changed using LVM_SETITEMSTATE, + * Windows redraws the selected text but does not + * redraw the image or the check box, leaving them + * appearing unselected. The fix is to redraw + * the table. + */ + if (imageList !is null || (style & DWT.CHECK) !is 0) { + OS.InvalidateRect (handle, null, false); + } + + /* + * Bug in Windows. For some reason, the table does + * not set the default focus rectangle to be the first + * item in the table when it gets focus and there is + * no selected item. The fix to make the first item + * be the focus item. + */ + int count = OS.SendMessage (handle, OS.LVM_GETITEMCOUNT, 0, 0); + if (count is 0) return result; + int index = OS.SendMessage (handle, OS.LVM_GETNEXTITEM, -1, OS.LVNI_FOCUSED); + if (index is -1) { + LVITEM lvItem = new LVITEM (); + lvItem.state = OS.LVIS_FOCUSED; + lvItem.stateMask = OS.LVIS_FOCUSED; + ignoreSelect = true; + OS.SendMessage (handle, OS.LVM_SETITEMSTATE, 0, lvItem); + ignoreSelect = false; + } + return result; +} + +LRESULT WM_SETFONT (int wParam, int lParam) { + LRESULT result = super.WM_SETFONT (wParam, lParam); + if (result !is null) return result; + + /* + * Bug in Windows. When a header has a sort indicator + * triangle, Windows resizes the indicator based on the + * size of the n-1th font. The fix is to always make + * the n-1th font be the default. This makes the sort + * indicator always be the default size. + * + * NOTE: The table window proc sets the actual font in + * the header so that all that is necessary here is to + * set the default first. + */ + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.WM_SETFONT, 0, lParam); + + if (headerToolTipHandle !is 0) { + OS.SendMessage (headerToolTipHandle, OS.WM_SETFONT, wParam, lParam); + } + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + if (ignoreResize) return null; + if (hooks (DWT.EraseItem) || hooks (DWT.PaintItem)) { + OS.InvalidateRect (handle, null, true); + } + if (resizeCount !is 0) { + wasResized = true; + return null; + } + return super.WM_SIZE (wParam, lParam); +} + +LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) { + LRESULT result = super.WM_SYSCOLORCHANGE (wParam, lParam); + if (result !is null) return result; + if (findBackgroundControl () is null) { + setBackgroundPixel (defaultBackground ()); + } else { + if ((style & DWT.CHECK) !is 0) { + fixCheckboxImageListColor (true); + } + } + return result; +} + +LRESULT WM_HSCROLL (int wParam, int lParam) { + /* + * Bug in Windows. When a table that is drawing grid lines + * is slowly scrolled horizontally to the left, the table does + * not redraw the newly exposed vertical grid lines. The fix + * is to save the old scroll position, call the window proc, + * get the new scroll position and redraw the new area. + */ + int oldPos = 0; + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_GRIDLINES) !is 0) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + OS.GetScrollInfo (handle, OS.SB_HORZ, info); + oldPos = info.nPos; + } + + /* + * When there are many columns in a table, scrolling performance + * can be improved by temporarily unsubclassing the window proc + * so that internal messages are dispatched directly to the table. + * If the application expects to see a paint event or has a child + * whose font, foreground or background color might be needed, + * the window proc cannot be unsubclassed + * + * NOTE: The header tooltip can subclass the header proc so the + * current proc must be restored or header tooltips stop working. + */ + int oldHeaderProc = 0, oldTableProc = 0; + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + bool fixSubclass = !hasChildren () && !hooks (DWT.Paint) && !filters (DWT.Paint); + if (fixSubclass) { + oldTableProc = OS.SetWindowLong (handle, OS.GWL_WNDPROC, TableProc); + oldHeaderProc = OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, HeaderProc); + } + LRESULT result = super.WM_HSCROLL (wParam, lParam); + if (fixSubclass) { + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldTableProc); + OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, oldHeaderProc); + } + + /* + * Bug in Windows. When a table that is drawing grid lines + * is slowly scrolled horizontally to the left, the table does + * not redraw the newly exposed vertical grid lines. The fix + * is to save the old scroll position, call the window proc, + * get the new scroll position and redraw the new area. + */ + if ((bits & OS.LVS_EX_GRIDLINES) !is 0) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + OS.GetScrollInfo (handle, OS.SB_HORZ, info); + int newPos = info.nPos; + if (newPos < oldPos) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + rect.right = oldPos - newPos + GRID_WIDTH; + OS.InvalidateRect (handle, rect, true); + } + } + return result; +} + +LRESULT WM_VSCROLL (int wParam, int lParam) { + /* + * When there are many columns in a table, scrolling performance + * can be improved by temporarily unsubclassing the window proc + * so that internal messages are dispatched directly to the table. + * If the application expects to see a paint event or has a child + * whose font, foreground or background color might be needed, + * the window proc cannot be unsubclassed. + * + * NOTE: The header tooltip can subclass the header proc so the + * current proc must be restored or header tooltips stop working. + */ + int oldHeaderProc = 0, oldTableProc = 0; + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + bool fixSubclass = !hasChildren () && !hooks (DWT.Paint) && !filters (DWT.Paint); + if (fixSubclass) { + oldTableProc = OS.SetWindowLong (handle, OS.GWL_WNDPROC, TableProc); + oldHeaderProc = OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, HeaderProc); + } + LRESULT result = super.WM_VSCROLL (wParam, lParam); + if (fixSubclass) { + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldTableProc); + OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, oldHeaderProc); + } + + /* + * Bug in Windows. When a table is drawing grid lines and the + * user scrolls vertically up or down by a line or a page, the + * table does not redraw the grid lines for newly exposed items. + * The fix is to invalidate the items. + */ + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_GRIDLINES) !is 0) { + int code = wParam & 0xFFFF; + switch (code) { + case OS.SB_ENDSCROLL: + case OS.SB_THUMBPOSITION: + case OS.SB_THUMBTRACK: + case OS.SB_TOP: + case OS.SB_BOTTOM: + break; + case OS.SB_LINEDOWN: + case OS.SB_LINEUP: + RECT rect = new RECT (); + OS.GetWindowRect (hwndHeader, rect); + int headerHeight = rect.bottom - rect.top; + RECT clientRect = new RECT (); + OS.GetClientRect (handle, clientRect); + clientRect.top += headerHeight; + int empty = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); + int oneItem = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); + int itemHeight = (oneItem >> 16) - (empty >> 16); + if (code is OS.SB_LINEDOWN) { + clientRect.top = clientRect.bottom - itemHeight - GRID_WIDTH; + } else { + clientRect.bottom = clientRect.top + itemHeight + GRID_WIDTH; + } + OS.InvalidateRect (handle, clientRect, true); + break; + case OS.SB_PAGEDOWN: + case OS.SB_PAGEUP: + OS.InvalidateRect (handle, null, true); + break; + } + } + return result; +} + +LRESULT wmMeasureChild (int wParam, int lParam) { + MEASUREITEMSTRUCT struct = new MEASUREITEMSTRUCT (); + OS.MoveMemory (struct, lParam, MEASUREITEMSTRUCT.sizeof); + if (itemHeight is -1) { + int empty = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 0, 0); + int oneItem = OS.SendMessage (handle, OS.LVM_APPROXIMATEVIEWRECT, 1, 0); + struct.itemHeight = (oneItem >> 16) - (empty >> 16); + } else { + struct.itemHeight = itemHeight; + } + OS.MoveMemory (lParam, struct, MEASUREITEMSTRUCT.sizeof); + return null; +} + +LRESULT wmNotify (NMHDR hdr, int wParam, int lParam) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hdr.hwndFrom is hwndHeader) { + /* + * Feature in Windows. On NT, the automatically created + * header control is created as a UNICODE window, not an + * ANSI window despite the fact that the parent is created + * as an ANSI window. This means that it sends UNICODE + * notification messages to the parent window on NT for + * no good reason. The data and size in the NMHEADER and + * HDITEM structs is identical between the platforms so no + * different message is actually necessary. Despite this, + * Windows sends different messages. The fix is to look + * for both messages, despite the platform. This works + * because only one will be sent on either platform, never + * both. + */ + switch (hdr.code) { + case OS.HDN_BEGINTRACKW: + case OS.HDN_BEGINTRACKA: + case OS.HDN_DIVIDERDBLCLICKW: + case OS.HDN_DIVIDERDBLCLICKA: { + if (columnCount is 0) return LRESULT.ONE; + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + TableColumn column = columns [phdn.iItem]; + if (column !is null && !column.getResizable ()) { + return LRESULT.ONE; + } + ignoreColumnMove = true; + switch (hdr.code) { + case OS.HDN_DIVIDERDBLCLICKW: + case OS.HDN_DIVIDERDBLCLICKA: + /* + * Bug in Windows. When the first column of a table does not + * have an image and the user double clicks on the divider, + * Windows packs the column but does not take into account + * the empty space left for the image. The fix is to measure + * each items ourselves rather than letting Windows do it. + */ + bool fixPack = phdn.iItem is 0 && !firstColumnImage; + if (column !is null && (fixPack || hooks (DWT.MeasureItem))) { + column.pack (); + return LRESULT.ONE; + } + } + break; + } + case OS.NM_RELEASEDCAPTURE: { + if (!ignoreColumnMove) { + for (int i=0; i<columnCount; i++) { + TableColumn column = columns [i]; + column.updateToolTip (i); + } + } + ignoreColumnMove = false; + break; + } + case OS.HDN_BEGINDRAG: { + if (ignoreColumnMove) return LRESULT.ONE; + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_HEADERDRAGDROP) is 0) break; + if (columnCount is 0) return LRESULT.ONE; + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + if (phdn.iItem !is -1) { + TableColumn column = columns [phdn.iItem]; + if (column !is null && !column.getMoveable ()) { + ignoreColumnMove = true; + return LRESULT.ONE; + } + } + break; + } + case OS.HDN_ENDDRAG: { + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_HEADERDRAGDROP) is 0) break; + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + if (phdn.iItem !is -1 && phdn.pitem !is 0) { + HDITEM pitem = new HDITEM (); + OS.MoveMemory (pitem, phdn.pitem, HDITEM.sizeof); + if ((pitem.mask & OS.HDI_ORDER) !is 0 && pitem.iOrder !is -1) { + if (columnCount is 0) break; + int [] order = new int [columnCount]; + OS.SendMessage (handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, order); + int index = 0; + while (index < order.length) { + if (order [index] is phdn.iItem) break; + index++; + } + if (index is order.length) index = 0; + if (index is pitem.iOrder) break; + int start = Math.min (index, pitem.iOrder); + int end = Math.max (index, pitem.iOrder); + ignoreColumnMove = false; + for (int i=start; i<=end; i++) { + TableColumn column = columns [order [i]]; + if (!column.isDisposed ()) { + column.postEvent (DWT.Move); + } + } + } + } + break; + } + case OS.HDN_ITEMCHANGEDW: + case OS.HDN_ITEMCHANGEDA: { + /* + * Bug in Windows. When a table has the LVS_EX_GRIDLINES extended + * style and the user drags any column over the first column in the + * table, making the size become zero, when the user drags a column + * such that the size of the first column becomes non-zero, the grid + * lines are not redrawn. The fix is to detect the case and force + * a redraw of the first column. + */ + int width = OS.SendMessage (handle, OS.LVM_GETCOLUMNWIDTH, 0, 0); + if (lastWidth is 0 && width > 0) { + int bits = OS.SendMessage (handle, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if ((bits & OS.LVS_EX_GRIDLINES) !is 0) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + rect.right = rect.left + width; + OS.InvalidateRect (handle, rect, true); + } + } + lastWidth = width; + if (!ignoreColumnResize) { + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + if (phdn.pitem !is 0) { + HDITEM pitem = new HDITEM (); + OS.MoveMemory (pitem, phdn.pitem, HDITEM.sizeof); + if ((pitem.mask & OS.HDI_WIDTH) !is 0) { + TableColumn column = columns [phdn.iItem]; + if (column !is null) { + column.updateToolTip (phdn.iItem); + column.sendEvent (DWT.Resize); + if (isDisposed ()) return LRESULT.ZERO; + /* + * It is possible (but unlikely), that application + * code could have disposed the column in the move + * event. If this happens, process the move event + * for those columns that have not been destroyed. + */ + TableColumn [] newColumns = new TableColumn [columnCount]; + System.arraycopy (columns, 0, newColumns, 0, columnCount); + int [] order = new int [columnCount]; + OS.SendMessage (handle, OS.LVM_GETCOLUMNORDERARRAY, columnCount, order); + bool moved = false; + for (int i=0; i<columnCount; i++) { + TableColumn nextColumn = newColumns [order [i]]; + if (moved && !nextColumn.isDisposed ()) { + nextColumn.updateToolTip (order [i]); + nextColumn.sendEvent (DWT.Move); + } + if (nextColumn is column) moved = true; + } + } + } + } + } + break; + } + case OS.HDN_ITEMDBLCLICKW: + case OS.HDN_ITEMDBLCLICKA: { + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + TableColumn column = columns [phdn.iItem]; + if (column !is null) { + column.postEvent (DWT.DefaultSelection); + } + break; + } + } + } + LRESULT result = super.wmNotify (hdr, wParam, lParam); + if (result !is null) return result; + switch (hdr.code) { + case OS.TTN_GETDISPINFOA: + case OS.TTN_GETDISPINFOW: { + tipRequested = true; + int code = callWindowProc (handle, OS.WM_NOTIFY, wParam, lParam); + tipRequested = false; + return new LRESULT (code); + } + } + return result; +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + switch (hdr.code) { + case OS.LVN_ODFINDITEMA: + case OS.LVN_ODFINDITEMW: { + if ((style & DWT.VIRTUAL) !is 0) return new LRESULT (-1); + break; + } + case OS.LVN_ODSTATECHANGED: { + if ((style & DWT.VIRTUAL) !is 0) { + if (!ignoreSelect) { + NMLVODSTATECHANGE lpStateChange = new NMLVODSTATECHANGE (); + OS.MoveMemory (lpStateChange, lParam, NMLVODSTATECHANGE.sizeof); + bool oldSelected = (lpStateChange.uOldState & OS.LVIS_SELECTED) !is 0; + bool newSelected = (lpStateChange.uNewState & OS.LVIS_SELECTED) !is 0; + if (oldSelected !is newSelected) wasSelected = true; + } + } + break; + } + case OS.LVN_GETDISPINFOA: + case OS.LVN_GETDISPINFOW: { +// if (drawCount !is 0 || !OS.IsWindowVisible (handle)) break; + NMLVDISPINFO plvfi = new NMLVDISPINFO (); + OS.MoveMemory (plvfi, lParam, NMLVDISPINFO.sizeof); + + /* + * When an item is being deleted from a virtual table, do not + * allow the application to provide data for a new item that + * becomes visible until the item has been removed from the + * items array. Because arbitrary application code can run + * during the callback, the items array might be accessed + * in an inconsistent state. Rather than answering the data + * right away, queue a redraw for later. + */ + if ((style & DWT.VIRTUAL) !is 0) { + if (ignoreShrink) { + OS.SendMessage (handle, OS.LVM_REDRAWITEMS, plvfi.iItem, plvfi.iItem); + break; + } + } + + /* + * Feature in Windows. When a new table item is inserted + * using LVM_INSERTITEM in a table that is transparent + * (ie. LVM_SETBKCOLOR has been called with CLR_NONE), + * TVM_INSERTITEM calls LVN_GETDISPINFO before the item + * has been added to the array. The fix is to check for + * null. + */ + TableItem item = _getItem (plvfi.iItem); + if (item is null) break; + + /* + * The cached flag is used by both virtual and non-virtual + * tables to indicate that Windows has asked at least once + * for a table item. + */ + if (!item.cached) { + if ((style & DWT.VIRTUAL) !is 0) { + lastIndexOf = plvfi.iItem; + if (!checkData (item, lastIndexOf, false)) break; + TableItem newItem = fixScrollWidth ? null : item; + if (setScrollWidth (newItem, true)) { + OS.InvalidateRect (handle, null, true); + } + } + item.cached = true; + } + if ((plvfi.mask & OS.LVIF_TEXT) !is 0) { + String string = null; + if (plvfi.iSubItem is 0) { + string = item.text; + } else { + String [] strings = item.strings; + if (strings !is null) string = strings [plvfi.iSubItem]; + } + if (string !is null) { + /* + * Bug in Windows. When pszText points to a zero length + * NULL terminated string, Windows correctly draws the + * empty string but the cache of the bounds for the item + * is not reset. This means that when the text for the + * item is set and then reset to an empty string, the + * selection draws using the bounds of the previous text. + * The fix is to use a space rather than an empty string + * when anything but a tool tip is requested (to avoid + * a tool tip that is a single space). + * + * NOTE: This is only a problem for items in the first + * column. Assigning NULL to other columns stops Windows + * from drawing the selection when LVS_EX_FULLROWSELECT + * is set. + */ + int length = Math.min (string.length (), plvfi.cchTextMax - 1); + if (!tipRequested && plvfi.iSubItem is 0 && length is 0) { + string = " "; //$NON-NLS-1$ + length = 1; + } + char [] buffer = display.tableBuffer; + if (buffer is null || plvfi.cchTextMax > buffer.length) { + buffer = display.tableBuffer = new char [plvfi.cchTextMax]; + } + string.getChars (0, length, buffer, 0); + buffer [length++] = 0; + if (OS.IsUnicode) { + OS.MoveMemory (plvfi.pszText, buffer, length * 2); + } else { + OS.WideCharToMultiByte (getCodePage (), 0, buffer, length, plvfi.pszText, plvfi.cchTextMax, null, null); + OS.MoveMemory (plvfi.pszText + plvfi.cchTextMax - 1, new byte [1], 1); + } + } + } + bool move = false; + if ((plvfi.mask & OS.LVIF_IMAGE) !is 0) { + Image image = null; + if (plvfi.iSubItem is 0) { + image = item.image; + } else { + Image [] images = item.images; + if (images !is null) image = images [plvfi.iSubItem]; + } + if (image !is null) { + plvfi.iImage = imageIndex (image, plvfi.iSubItem); + move = true; + } + } + if ((plvfi.mask & OS.LVIF_STATE) !is 0) { + if (plvfi.iSubItem is 0) { + int state = 1; + if (item.checked) state++; + if (item.grayed) state +=2; + plvfi.state = state << 12; + plvfi.stateMask = OS.LVIS_STATEIMAGEMASK; + move = true; + } + } + if ((plvfi.mask & OS.LVIF_INDENT) !is 0) { + if (plvfi.iSubItem is 0) { + plvfi.iIndent = item.imageIndent; + move = true; + } + } + if (move) OS.MoveMemory (lParam, plvfi, NMLVDISPINFO.sizeof); + break; + } + case OS.NM_CUSTOMDRAW: { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + if (hdr.hwndFrom is hwndHeader) break; + if (!customDraw && findImageControl () is null) { + /* + * Feature in Windows. When the table is disabled, it draws + * with a gray background but does not gray the text. The fix + * is to explicitly gray the text using Custom Draw. + */ + if (OS.IsWindowEnabled (handle)) { + /* + * Feature in Windows. On Vista using the explorer theme, + * Windows draws a vertical line to separate columns. When + * there is only a single column, the line looks strange. + * The fix is to draw the background using custom draw. + */ + if (!explorerTheme || columnCount !is 0) break; + } + } + NMLVCUSTOMDRAW nmcd = new NMLVCUSTOMDRAW (); + OS.MoveMemory (nmcd, lParam, NMLVCUSTOMDRAW.sizeof); + switch (nmcd.dwDrawStage) { + case OS.CDDS_PREPAINT: return CDDS_PREPAINT (nmcd, wParam, lParam); + case OS.CDDS_ITEMPREPAINT: return CDDS_ITEMPREPAINT (nmcd, wParam, lParam); + case OS.CDDS_ITEMPOSTPAINT: return CDDS_ITEMPOSTPAINT (nmcd, wParam, lParam); + case OS.CDDS_SUBITEMPREPAINT: return CDDS_SUBITEMPREPAINT (nmcd, wParam, lParam); + case OS.CDDS_SUBITEMPOSTPAINT: return CDDS_SUBITEMPOSTPAINT (nmcd, wParam, lParam); + case OS.CDDS_POSTPAINT: return CDDS_POSTPAINT (nmcd, wParam, lParam); + } + break; + } + case OS.LVN_MARQUEEBEGIN: { + if ((style & DWT.SINGLE) !is 0) return LRESULT.ONE; + if (hooks (DWT.MouseDown) || hooks (DWT.MouseUp)) { + return LRESULT.ONE; + } + break; + } + case OS.LVN_BEGINDRAG: + case OS.LVN_BEGINRDRAG: { + dragStarted = true; + if (hdr.code is OS.LVN_BEGINDRAG) { + int pos = OS.GetMessagePos (); + POINT pt = new POINT (); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (handle, pt); + sendDragEvent (1, pt.x, pt.y); + } + break; + } + case OS.LVN_COLUMNCLICK: { + NMLISTVIEW pnmlv = new NMLISTVIEW (); + OS.MoveMemory(pnmlv, lParam, NMLISTVIEW.sizeof); + TableColumn column = columns [pnmlv.iSubItem]; + if (column !is null) { + column.postEvent (DWT.Selection); + } + break; + } + case OS.LVN_ITEMACTIVATE: { + if (ignoreActivate) break; + NMLISTVIEW pnmlv = new NMLISTVIEW (); + OS.MoveMemory(pnmlv, lParam, NMLISTVIEW.sizeof); + if (pnmlv.iItem !is -1) { + Event event = new Event (); + event.item = _getItem (pnmlv.iItem); + postEvent (DWT.DefaultSelection, event); + } + break; + } + case OS.LVN_ITEMCHANGED: { + if (!ignoreSelect) { + NMLISTVIEW pnmlv = new NMLISTVIEW (); + OS.MoveMemory (pnmlv, lParam, NMLISTVIEW.sizeof); + if ((pnmlv.uChanged & OS.LVIF_STATE) !is 0) { + if (pnmlv.iItem is -1) { + wasSelected = true; + } else { + bool oldSelected = (pnmlv.uOldState & OS.LVIS_SELECTED) !is 0; + bool newSelected = (pnmlv.uNewState & OS.LVIS_SELECTED) !is 0; + if (oldSelected !is newSelected) wasSelected = true; + } + } + } + if (hooks (DWT.EraseItem) || hooks (DWT.PaintItem)) { + int hwndHeader = OS.SendMessage (handle, OS.LVM_GETHEADER, 0, 0); + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (count !is 0) { + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + NMLISTVIEW pnmlv = new NMLISTVIEW (); + OS.MoveMemory (pnmlv, lParam, NMLISTVIEW.sizeof); + if (pnmlv.iItem !is -1) { + RECT itemRect = new RECT (); + itemRect.left = OS.LVIR_BOUNDS; + ignoreCustomDraw = true; + OS.SendMessage (handle, OS. LVM_GETITEMRECT, pnmlv.iItem, itemRect); + ignoreCustomDraw = false; + RECT headerRect = new RECT (); + int index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, count - 1, 0); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + OS.MapWindowPoints (hwndHeader, handle, headerRect, 2); + rect.left = headerRect.right; + rect.top = itemRect.top; + rect.bottom = itemRect.bottom; + OS.InvalidateRect (handle, rect, true); + } + } + } + break; + } + case OS.NM_RECOGNIZEGESTURE: + /* + * Feature on Pocket PC. The tree and table controls detect the tap + * and hold gesture by default. They send a GN_CONTEXTMENU message to show + * the popup menu. This default behaviour is unwanted on Pocket PC 2002 + * when no menu has been set, as it still draws a red circle. The fix + * is to disable this default behaviour when no menu is set by returning + * TRUE when receiving the Pocket PC 2002 specific NM_RECOGNIZEGESTURE + * message. + */ + if (OS.IsPPC) { + bool hasMenu = menu !is null && !menu.isDisposed (); + if (!hasMenu && !hooks (DWT.MenuDetect)) return LRESULT.ONE; + } + break; + case OS.GN_CONTEXTMENU: + if (OS.IsPPC) { + bool hasMenu = menu !is null && !menu.isDisposed (); + if (hasMenu || hooks (DWT.MenuDetect)) { + NMRGINFO nmrg = new NMRGINFO (); + OS.MoveMemory (nmrg, lParam, NMRGINFO.sizeof); + showMenu (nmrg.x, nmrg.y); + return LRESULT.ONE; + } + } + break; + } + return super.wmNotifyChild (hdr, wParam, lParam); +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/TableColumn.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,878 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.TableColumn; + +import dwt.widgets.Item; +import dwt.widgets.Widget; +class TableColumn : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} + +/++ + +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ControlListener; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Image; +import dwt.graphics.Rectangle; +import dwt.internal.win32.HDITEM; +import dwt.internal.win32.LVCOLUMN; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TOOLINFO; + +/** + * Instances of this class represent a column in a table widget. + * <p><dl> + * <dt><b>Styles:</b></dt> + * <dd>LEFT, RIGHT, CENTER</dd> + * <dt><b>Events:</b></dt> + * <dd> Move, Resize, Selection</dd> + * </dl> + * </p><p> + * Note: Only one of the styles LEFT, RIGHT and CENTER may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ +public class TableColumn extends Item { + Table parent; + bool resizable, moveable; + String toolTipText; + int id; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Table</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#CENTER + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TableColumn (Table parent, int style) { + super (parent, checkStyle (style)); + resizable = true; + this.parent = parent; + parent.createItem (this, parent.getColumnCount ()); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Table</code>), a style value + * describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#CENTER + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TableColumn (Table parent, int style, int index) { + super (parent, checkStyle (style)); + resizable = true; + this.parent = parent; + parent.createItem (this, index); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is moved or resized, by sending + * it one of the messages defined in the <code>ControlListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ControlListener + * @see #removeControlListener + */ +public void addControlListener(ControlListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Resize,typedListener); + addListener (DWT.Move,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the column header is selected. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the control is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +static int checkStyle (int style) { + return checkBits (style, DWT.LEFT, DWT.CENTER, DWT.RIGHT, 0, 0, 0); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +/** + * Returns a value which describes the position of the + * text or image in the receiver. The value will be one of + * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code>. + * + * @return the alignment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getAlignment () { + checkWidget (); + if ((style & DWT.LEFT) !is 0) return DWT.LEFT; + if ((style & DWT.CENTER) !is 0) return DWT.CENTER; + if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; + return DWT.LEFT; +} + +String getNameText () { + return getText (); +} + +/** + * Returns the receiver's parent, which must be a <code>Table</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Table getParent () { + checkWidget (); + return parent; +} + +/** + * Gets the moveable attribute. A column that is + * not moveable cannot be reordered by the user + * by dragging the header but may be reordered + * by the programmer. + * + * @return the moveable attribute + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#getColumnOrder() + * @see Table#setColumnOrder(int[]) + * @see TableColumn#setMoveable(bool) + * @see DWT#Move + * + * @since 3.1 + */ +public bool getMoveable () { + checkWidget (); + return moveable; +} + +/** + * Gets the resizable attribute. A column that is + * not resizable cannot be dragged by the user but + * may be resized by the programmer. + * + * @return the resizable attribute + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getResizable () { + checkWidget (); + return resizable; +} + +/** + * Returns the receiver's tool tip text, or null if it has + * not been set. + * + * @return the receiver's tool tip text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public String getToolTipText () { + checkWidget(); + return toolTipText; +} + +/** + * Gets the width of the receiver. + * + * @return the width + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getWidth () { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return 0; + int hwnd = parent.handle; + return OS.SendMessage (hwnd, OS.LVM_GETCOLUMNWIDTH, index, 0); +} + +/** + * Causes the receiver to be resized to its preferred size. + * For a composite, this involves computing the preferred size + * from its layout, if there is one. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + */ +public void pack () { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return; + int hwnd = parent.handle; + int oldWidth = OS.SendMessage (hwnd, OS.LVM_GETCOLUMNWIDTH, index, 0); + TCHAR buffer = new TCHAR (parent.getCodePage (), text, true); + int headerWidth = OS.SendMessage (hwnd, OS.LVM_GETSTRINGWIDTH, 0, buffer) + Table.HEADER_MARGIN; + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) headerWidth += Table.HEADER_EXTRA; + bool hasHeaderImage = false; + if (image !is null || parent.sortColumn is this) { + hasHeaderImage = true; + Image headerImage = null; + if (parent.sortColumn is this && parent.sortDirection !is DWT.NONE) { + if (OS.COMCTL32_MAJOR < 6) { + headerImage = display.getSortImage (parent.sortDirection); + } else { + headerWidth += Table.SORT_WIDTH; + } + } else { + headerImage = image; + } + if (headerImage !is null) { + Rectangle bounds = headerImage.getBounds (); + headerWidth += bounds.width; + } + int margin = 0; + if (OS.COMCTL32_VERSION >= OS.VERSION (5, 80)) { + int hwndHeader = OS.SendMessage (hwnd, OS.LVM_GETHEADER, 0, 0); + margin = OS.SendMessage (hwndHeader, OS.HDM_GETBITMAPMARGIN, 0, 0); + } else { + margin = OS.GetSystemMetrics (OS.SM_CXEDGE) * 3; + } + headerWidth += margin * 4; + } + parent.ignoreColumnResize = true; + int columnWidth = 0; + /* + * Bug in Windows. When the first column of a table does not + * have an image and the user double clicks on the divider, + * Windows packs the column but does not take into account + * the empty space left for the image. The fix is to measure + * each items ourselves rather than letting Windows do it. + */ + if ((index is 0 && !parent.firstColumnImage) || parent.hooks (DWT.MeasureItem)) { + RECT headerRect = new RECT (); + int hwndHeader = OS.SendMessage (hwnd, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + OS.MapWindowPoints (hwndHeader, hwnd, headerRect, 2); + int hDC = OS.GetDC (hwnd); + int oldFont = 0, newFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + int count = OS.SendMessage (hwnd, OS.LVM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + TableItem item = parent.items [i]; + if (item !is null) { + int hFont = item.cellFont !is null ? item.cellFont [index] : -1; + if (hFont is -1) hFont = item.font; + if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); + Event event = parent.sendMeasureItemEvent (item, i, index, hDC); + if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); + if (isDisposed () || parent.isDisposed ()) break; + columnWidth = Math.max (columnWidth, event.x + event.width - headerRect.left); + } + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (hwnd, hDC); + OS.SendMessage (hwnd, OS.LVM_SETCOLUMNWIDTH, index, columnWidth); + } else { + OS.SendMessage (hwnd, OS.LVM_SETCOLUMNWIDTH, index, OS.LVSCW_AUTOSIZE); + columnWidth = OS.SendMessage (hwnd, OS.LVM_GETCOLUMNWIDTH, index, 0); + if (index is 0) { + /* + * Bug in Windows. When LVM_SETCOLUMNWIDTH is used with LVSCW_AUTOSIZE + * where each item has I_IMAGECALLBACK but there are no images in the + * table, the size computed by LVM_SETCOLUMNWIDTH is too small for the + * first column, causing long items to be clipped with '...'. The fix + * is to increase the column width by a small amount. + */ + if (parent.imageList is null) columnWidth += 2; + /* + * Bug in Windows. When LVM_SETCOLUMNWIDTH is used with LVSCW_AUTOSIZE + * for a table with a state image list, the column is width does not + * include space for the state icon. The fix is to increase the column + * width by the width of the image list. + */ + if ((parent.style & DWT.CHECK) !is 0) { + int hStateList = OS.SendMessage (hwnd, OS.LVM_GETIMAGELIST, OS.LVSIL_STATE, 0); + if (hStateList !is 0) { + int [] cx = new int [1], cy = new int [1]; + OS.ImageList_GetIconSize (hStateList, cx, cy); + columnWidth += cx [0]; + } + } + } + } + if (headerWidth > columnWidth) { + if (!hasHeaderImage) { + /* + * Feature in Windows. When LVSCW_AUTOSIZE_USEHEADER is used + * with LVM_SETCOLUMNWIDTH to resize the last column, the last + * column is expanded to fill the client area. The fix is to + * resize the table to be small, set the column width and then + * restore the table to its original size. + */ + RECT rect = null; + bool fixWidth = index is parent.getColumnCount () - 1; + if (fixWidth) { + rect = new RECT (); + OS.GetWindowRect (hwnd, rect); + OS.UpdateWindow (hwnd); + int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOREDRAW | OS.SWP_NOZORDER; + SetWindowPos (hwnd, 0, 0, 0, 0, rect.bottom - rect.top, flags); + } + OS.SendMessage (hwnd, OS.LVM_SETCOLUMNWIDTH, index, OS.LVSCW_AUTOSIZE_USEHEADER); + if (fixWidth) { + int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOZORDER; + SetWindowPos (hwnd, 0, 0, 0, rect.right - rect.left, rect.bottom - rect.top, flags); + } + } else { + OS.SendMessage (hwnd, OS.LVM_SETCOLUMNWIDTH, index, headerWidth); + } + } else { + if (index is 0) { + OS.SendMessage (hwnd, OS.LVM_SETCOLUMNWIDTH, index, columnWidth); + } + } + parent.ignoreColumnResize = false; + int newWidth = OS.SendMessage (hwnd, OS.LVM_GETCOLUMNWIDTH, index, 0); + if (oldWidth !is newWidth) { + updateToolTip (index); + sendEvent (DWT.Resize); + if (isDisposed ()) return; + bool moved = false; + int [] order = parent.getColumnOrder (); + TableColumn [] columns = parent.getColumns (); + for (int i=0; i<order.length; i++) { + TableColumn column = columns [order [i]]; + if (moved && !column.isDisposed ()) { + column.updateToolTip (order [i]); + column.sendEvent (DWT.Move); + } + if (column is this) moved = true; + } + } +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; +} + +void releaseParent () { + super.releaseParent (); + if (parent.sortColumn is this) { + parent.sortColumn = null; + } +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is moved or resized. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ControlListener + * @see #addControlListener + */ +public void removeControlListener (ControlListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Move, listener); + eventTable.unhook (DWT.Resize, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Controls how text and images will be displayed in the receiver. + * The argument should be one of <code>LEFT</code>, <code>RIGHT</code> + * or <code>CENTER</code>. + * + * @param alignment the new alignment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setAlignment (int alignment) { + checkWidget (); + if ((alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER)) is 0) return; + int index = parent.indexOf (this); + if (index is -1 || index is 0) return; + style &= ~(DWT.LEFT | DWT.RIGHT | DWT.CENTER); + style |= alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER); + int hwnd = parent.handle; + LVCOLUMN lvColumn = new LVCOLUMN (); + lvColumn.mask = OS.LVCF_FMT | OS.LVCF_IMAGE; + OS.SendMessage (hwnd, OS.LVM_GETCOLUMN, index, lvColumn); + lvColumn.fmt &= ~OS.LVCFMT_JUSTIFYMASK; + int fmt = 0; + if ((style & DWT.LEFT) is DWT.LEFT) fmt = OS.LVCFMT_LEFT; + if ((style & DWT.CENTER) is DWT.CENTER) fmt = OS.LVCFMT_CENTER; + if ((style & DWT.RIGHT) is DWT.RIGHT) fmt = OS.LVCFMT_RIGHT; + lvColumn.fmt |= fmt; + OS.SendMessage (hwnd, OS.LVM_SETCOLUMN, index, lvColumn); + /* + * Bug in Windows. When LVM_SETCOLUMN is used to change + * the alignment of a column, the column is not redrawn + * to show the new alignment. The fix is to compute the + * visible rectangle for the column and redraw it. + */ + if (index !is 0) { + parent.forceResize (); + RECT rect = new RECT (), headerRect = new RECT (); + OS.GetClientRect (hwnd, rect); + int hwndHeader = OS.SendMessage (hwnd, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + OS.MapWindowPoints (hwndHeader, hwnd, headerRect, 2); + rect.left = headerRect.left; + rect.right = headerRect.right; + OS.InvalidateRect (hwnd, rect, true); + } +} + +public void setImage (Image image) { + checkWidget(); + if (image !is null && image.isDisposed ()) { + error (DWT.ERROR_INVALID_ARGUMENT); + } + super.setImage (image); + if (parent.sortColumn !is this || parent.sortDirection !is DWT.NONE) { + setImage (image, false, false); + } +} + +void setImage (Image image, bool sort, bool right) { + int index = parent.indexOf (this); + if (index is -1) return; + int hwnd = parent.handle; + if (OS.COMCTL32_MAJOR < 6) { + int hwndHeader = OS.SendMessage (hwnd, OS.LVM_GETHEADER, 0, 0); + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE | OS.HDI_BITMAP; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + hdItem.fmt &= ~OS.HDF_BITMAP_ON_RIGHT; + if (image !is null) { + if (sort) { + hdItem.mask &= ~OS.HDI_IMAGE; + hdItem.fmt &= ~OS.HDF_IMAGE; + hdItem.fmt |= OS.HDF_BITMAP; + hdItem.hbm = image.handle; + } else { + hdItem.mask &= ~OS.HDI_BITMAP; + hdItem.fmt &= ~OS.HDF_BITMAP; + hdItem.fmt |= OS.HDF_IMAGE; + hdItem.iImage = parent.imageIndexHeader (image); + } + if (right) hdItem.fmt |= OS.HDF_BITMAP_ON_RIGHT; + } else { + hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_BITMAP); + } + OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); + } else { + LVCOLUMN lvColumn = new LVCOLUMN (); + lvColumn.mask = OS.LVCF_FMT | OS.LVCF_IMAGE; + OS.SendMessage (hwnd, OS.LVM_GETCOLUMN, index, lvColumn); + if (image !is null) { + lvColumn.fmt |= OS.LVCFMT_IMAGE; + lvColumn.iImage = parent.imageIndexHeader (image); + if (right) lvColumn.fmt |= OS.LVCFMT_BITMAP_ON_RIGHT; + } else { + lvColumn.mask &= ~OS.LVCF_IMAGE; + lvColumn.fmt &= ~(OS.LVCFMT_IMAGE | OS.LVCFMT_BITMAP_ON_RIGHT); + } + OS.SendMessage (hwnd, OS.LVM_SETCOLUMN, index, lvColumn); + } +} + +/** + * Sets the moveable attribute. A column that is + * moveable can be reordered by the user by dragging + * the header. A column that is not moveable cannot be + * dragged by the user but may be reordered + * by the programmer. + * + * @param moveable the moveable attribute + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Table#setColumnOrder(int[]) + * @see Table#getColumnOrder() + * @see TableColumn#getMoveable() + * @see DWT#Move + * + * @since 3.1 + */ +public void setMoveable (bool moveable) { + checkWidget (); + this.moveable = moveable; + parent.updateMoveable (); +} + +/** + * Sets the resizable attribute. A column that is + * resizable can be resized by the user dragging the + * edge of the header. A column that is not resizable + * cannot be dragged by the user but may be resized + * by the programmer. + * + * @param resizable the resize attribute + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setResizable (bool resizable) { + checkWidget (); + this.resizable = resizable; +} + +void setSortDirection (int direction) { + if (OS.COMCTL32_MAJOR >= 6) { + int index = parent.indexOf (this); + if (index is -1) return; + int hwnd = parent.handle; + int hwndHeader = OS.SendMessage (hwnd, OS.LVM_GETHEADER, 0, 0); + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + switch (direction) { + case DWT.UP: + hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_SORTDOWN); + hdItem.fmt |= OS.HDF_SORTUP; + break; + case DWT.DOWN: + hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_SORTUP); + hdItem.fmt |= OS.HDF_SORTDOWN; + break; + case DWT.NONE: + hdItem.fmt &= ~(OS.HDF_SORTUP | OS.HDF_SORTDOWN); + if (image !is null) { + hdItem.fmt |= OS.HDF_IMAGE; + hdItem.iImage = parent.imageIndexHeader (image); + } else { + hdItem.fmt &= ~OS.HDF_IMAGE; + hdItem.mask &= ~OS.HDI_IMAGE; + } + break; + } + OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); + /* + * Bug in Windows. When LVM_SETSELECTEDCOLUMN is used to + * specify a selected column, Windows does not redraw either + * the new or the previous selected column. The fix is to + * force a redraw of both. + * + * Feature in Windows. When LVM_SETBKCOLOR is used with + * CLR_NONE and LVM_SETSELECTEDCOLUMN is used to select + * a column, Windows fills the column with the selection + * color, drawing on top of the background image and any + * other custom drawing. The fix is to avoid setting the + * selected column. + */ + parent.forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (hwnd, rect); + if (OS.SendMessage (hwnd, OS.LVM_GETBKCOLOR, 0, 0) !is OS.CLR_NONE) { + int oldColumn = OS.SendMessage (hwnd, OS.LVM_GETSELECTEDCOLUMN, 0, 0); + int newColumn = direction is DWT.NONE ? -1 : index; + OS.SendMessage (hwnd, OS.LVM_SETSELECTEDCOLUMN, newColumn, 0); + RECT headerRect = new RECT (); + if (oldColumn !is -1) { + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, oldColumn, headerRect) !is 0) { + OS.MapWindowPoints (hwndHeader, hwnd, headerRect, 2); + rect.left = headerRect.left; + rect.right = headerRect.right; + OS.InvalidateRect (hwnd, rect, true); + } + } + } + RECT headerRect = new RECT (); + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect) !is 0) { + OS.MapWindowPoints (hwndHeader, hwnd, headerRect, 2); + rect.left = headerRect.left; + rect.right = headerRect.right; + OS.InvalidateRect (hwnd, rect, true); + } + } else { + switch (direction) { + case DWT.UP: + case DWT.DOWN: + setImage (display.getSortImage (direction), true, true); + break; + case DWT.NONE: + setImage (image, false, false); + break; + } + } +} + +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if (string.equals (text)) return; + int index = parent.indexOf (this); + if (index is -1) return; + super.setText (string); + + /* + * Bug in Windows. For some reason, when the title + * of a column is changed after the column has been + * created, the alignment must also be reset or the + * text does not draw. The fix is to query and then + * set the alignment. + */ + int hwnd = parent.handle; + LVCOLUMN lvColumn = new LVCOLUMN (); + lvColumn.mask = OS.LVCF_FMT; + OS.SendMessage (hwnd, OS.LVM_GETCOLUMN, index, lvColumn); + + /* + * Bug in Windows. When a column header contains a + * mnemonic character, Windows does not measure the + * text properly. This causes '...' to always appear + * at the end of the text. The fix is to remove + * mnemonic characters and replace doubled mnemonics + * with spaces. + */ + int hHeap = OS.GetProcessHeap (); + TCHAR buffer = new TCHAR (parent.getCodePage (), fixMnemonic (string), true); + int byteCount = buffer.length () * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + lvColumn.mask |= OS.LVCF_TEXT; + lvColumn.pszText = pszText; + int result = OS.SendMessage (hwnd, OS.LVM_SETCOLUMN, index, lvColumn); + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + if (result is 0) error (DWT.ERROR_CANNOT_SET_TEXT); +} + +/** + * Sets the receiver's tool tip text to the argument, which + * may be null indicating that no tool tip text should be shown. + * + * @param string the new tool tip text (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setToolTipText (String string) { + checkWidget(); + toolTipText = string; + int hwndHeaderToolTip = parent.headerToolTipHandle; + if (hwndHeaderToolTip is 0) { + parent.createHeaderToolTips (); + parent.updateHeaderToolTips (); + } +} + +/** + * Sets the width of the receiver. + * + * @param width the new width + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setWidth (int width) { + checkWidget (); + if (width < 0) return; + int index = parent.indexOf (this); + if (index is -1) return; + int hwnd = parent.handle; + OS.SendMessage (hwnd, OS.LVM_SETCOLUMNWIDTH, index, width); +} + +void updateToolTip (int index) { + int hwndHeaderToolTip = parent.headerToolTipHandle; + if (hwndHeaderToolTip !is 0) { + int hwnd = parent.handle; + int hwndHeader = OS.SendMessage (hwnd, OS.LVM_GETHEADER, 0, 0); + RECT rect = new RECT (); + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, rect) !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.hwnd = hwndHeader; + lpti.uId = id; + lpti.left = rect.left; + lpti.top = rect.top; + lpti.right = rect.right; + lpti.bottom = rect.bottom; + OS.SendMessage (hwndHeaderToolTip, OS.TTM_NEWTOOLRECT, 0, lpti); + } + } +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/TableItem.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1244 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.TableItem; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class TableItem : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ + +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Color; +import dwt.graphics.Font; +import dwt.graphics.Image; +import dwt.graphics.Rectangle; +import dwt.internal.win32.LVITEM; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class represent a selectable user interface object + * that represents an item in a table. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class TableItem extends Item { + Table parent; + String [] strings; + Image [] images; + bool checked, grayed, cached; + int imageIndent, background = -1, foreground = -1, font = -1; + int [] cellBackground, cellForeground, cellFont; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Table</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TableItem (Table parent, int style) { + this (parent, style, checkNull (parent).getItemCount (), true); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Table</code>), a style value + * describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TableItem (Table parent, int style, int index) { + this (parent, style, index, true); +} + +TableItem (Table parent, int style, int index, bool create) { + super (parent, style); + this.parent = parent; + if (create) parent.createItem (this, index); +} + +static Table checkNull (Table control) { + if (control is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + return control; +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +void clear () { + text = ""; + image = null; + strings = null; + images = null; + imageIndent = 0; + checked = grayed = false; + background = foreground = font = -1; + cellBackground = cellForeground = cellFont = null; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = false; +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +/** + * Returns the receiver's background color. + * + * @return the background color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public Color getBackground () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if (background is -1) return parent.getBackground (); + return Color.win32_new (display, background); +} + +/** + * Returns the background color at the given column index in the receiver. + * + * @param index the column index + * @return the background color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public Color getBackground (int index) { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return getBackground (); + int pixel = cellBackground !is null ? cellBackground [index] : -1; + return pixel is -1 ? getBackground () : Color.win32_new (display, pixel); +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent. + * + * @return the receiver's bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public Rectangle getBounds () { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int itemIndex = parent.indexOf (this); + if (itemIndex is -1) return new Rectangle (0, 0, 0, 0); + RECT rect = getBounds (itemIndex, 0, true, false, false); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent at a column in the table. + * + * @param index the index that specifies the column + * @return the receiver's bounding column rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Rectangle getBounds (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int itemIndex = parent.indexOf (this); + if (itemIndex is -1) return new Rectangle (0, 0, 0, 0); + RECT rect = getBounds (itemIndex, index, true, true, true); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +RECT getBounds (int row, int column, bool getText, bool getImage, bool fullText) { + return getBounds (row, column, getText, getImage, fullText, false, 0); +} + +RECT getBounds (int row, int column, bool getText, bool getImage, bool fullText, bool fullImage, int hDC) { + if (!getText && !getImage) return new RECT (); + int columnCount = parent.getColumnCount (); + if (!(0 <= column && column < Math.max (1, columnCount))) { + return new RECT (); + } + if (parent.fixScrollWidth) parent.setScrollWidth (null, true); + RECT rect = new RECT (); + int hwnd = parent.handle; + int bits = OS.SendMessage (hwnd, OS.LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0); + if (column is 0 && (bits & OS.LVS_EX_FULLROWSELECT) is 0) { + if (parent.explorerTheme) { + rect.left = OS.LVIR_ICON; + parent.ignoreCustomDraw = true; + int code = OS.SendMessage (hwnd, OS. LVM_GETITEMRECT, row, rect); + parent.ignoreCustomDraw = false; + if (code is 0) return new RECT (); + if (getText) { + int width = 0; + int hFont = cellFont !is null ? cellFont [column] : -1; + if (hFont is -1) hFont = font; + if (hFont is -1 && hDC is 0) { + TCHAR buffer = new TCHAR (parent.getCodePage (), text, true); + width = OS.SendMessage (hwnd, OS.LVM_GETSTRINGWIDTH, 0, buffer); + } else { + TCHAR buffer = new TCHAR (parent.getCodePage (), text, false); + int textDC = hDC !is 0 ? hDC : OS.GetDC (hwnd), oldFont = -1; + if (hDC is 0) { + if (hFont is -1) hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); + oldFont = OS.SelectObject (textDC, hFont); + } + RECT textRect = new RECT (); + int flags = OS.DT_NOPREFIX | OS.DT_SINGLELINE | OS.DT_CALCRECT; + OS.DrawText (textDC, buffer, buffer.length (), textRect, flags); + width = textRect.right - textRect.left; + if (hDC is 0) { + if (oldFont !is -1) OS.SelectObject (textDC, oldFont); + OS.ReleaseDC (hwnd, textDC); + } + } + if (!getImage) rect.left = rect.right; + rect.right += width + Table.INSET * 2; + } + } else { + if (getText) { + rect.left = OS.LVIR_SELECTBOUNDS; + parent.ignoreCustomDraw = true; + int code = OS.SendMessage (hwnd, OS.LVM_GETITEMRECT, row, rect); + parent.ignoreCustomDraw = false; + if (code is 0) return new RECT (); + if (!getImage) { + RECT iconRect = new RECT (); + iconRect.left = OS.LVIR_ICON; + parent.ignoreCustomDraw = true; + code = OS.SendMessage (hwnd, OS. LVM_GETITEMRECT, row, iconRect); + parent.ignoreCustomDraw = false; + if (code !is 0) rect.left = iconRect.right; + } + } else { + rect.left = OS.LVIR_ICON; + parent.ignoreCustomDraw = true; + int code = OS.SendMessage (hwnd, OS.LVM_GETITEMRECT, row, rect); + parent.ignoreCustomDraw = false; + if (code is 0) return new RECT (); + } + } + if (fullText || fullImage) { + RECT headerRect = new RECT (); + int hwndHeader = OS.SendMessage (hwnd, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, 0, headerRect); + OS.MapWindowPoints (hwndHeader, hwnd, headerRect, 2); + if (getText && fullText) rect.right = headerRect.right; + if (getImage && fullImage) rect.left = headerRect.left; + } + } else { + /* + * Feature in Windows. LVM_GETSUBITEMRECT returns an image width + * even when the subitem does not contain an image. The fix is to + * test for this case and adjust the rectangle to represent the area + * the table is actually drawing. + */ + bool hasImage = (column is 0 && image !is null) || (images !is null && images [column] !is null); + rect.top = column; + if (fullText || fullImage || hDC is 0) { + /* + * Bug in Windows. Despite the fact that the documentation states + * that LVIR_BOUNDS and LVIR_LABEL are identical when used with + * LVM_GETSUBITEMRECT, LVIR_BOUNDS can return a zero height. The + * fix is to use LVIR_LABEL. + */ + rect.left = getText ? OS.LVIR_LABEL : OS.LVIR_ICON; + parent.ignoreCustomDraw = true; + int code = OS.SendMessage (hwnd, OS. LVM_GETSUBITEMRECT, row, rect); + parent.ignoreCustomDraw = false; + if (code is 0) return new RECT (); + /* + * Feature in Windows. Calling LVM_GETSUBITEMRECT with LVIR_LABEL + * and zero for the column number gives the bounds of the first item + * without including the bounds of the icon. This is undocumented. + * When called with values greater than zero, the icon bounds are + * included and this behavior is documented. If the icon is needed + * in the bounds of the first item, the fix is to adjust the item + * bounds using the icon bounds. + */ + if (column is 0 && getText && getImage) { + RECT iconRect = new RECT (); + iconRect.left = OS.LVIR_ICON; + parent.ignoreCustomDraw = true; + code = OS.SendMessage (hwnd, OS. LVM_GETSUBITEMRECT, row, iconRect); + parent.ignoreCustomDraw = false; + if (code !is 0) rect.left = iconRect.left; + } + if (hasImage) { + if (column !is 0 && getText && !getImage) { + RECT iconRect = new RECT (); + iconRect.top = column; + iconRect.left = OS.LVIR_ICON; + if (OS.SendMessage (hwnd, OS. LVM_GETSUBITEMRECT, row, iconRect) !is 0) { + rect.left = iconRect.right + Table.INSET / 2; + } + } + } else { + if (getImage && !getText) rect.right = rect.left; + } + if (column is 0 && fullImage) { + RECT headerRect = new RECT (); + int hwndHeader = OS.SendMessage (hwnd, OS.LVM_GETHEADER, 0, 0); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, 0, headerRect); + OS.MapWindowPoints (hwndHeader, hwnd, headerRect, 2); + rect.left = headerRect.left; + } + } else { + rect.left = OS.LVIR_ICON; + parent.ignoreCustomDraw = true; + int code = OS.SendMessage (hwnd, OS. LVM_GETSUBITEMRECT, row, rect); + parent.ignoreCustomDraw = false; + if (code is 0) return new RECT (); + if (!hasImage) rect.right = rect.left; + if (getText) { + String string = column is 0 ? text : strings !is null ? strings [column] : null; + if (string !is null) { + RECT textRect = new RECT (); + TCHAR buffer = new TCHAR (parent.getCodePage (), string, false); + int flags = OS.DT_NOPREFIX | OS.DT_SINGLELINE | OS.DT_CALCRECT; + OS.DrawText (hDC, buffer, buffer.length (), textRect, flags); + rect.right += textRect.right - textRect.left + Table.INSET * 3 + 1; + } + } + } + } + /* + * Bug in Windows. In version 5.80 of COMCTL32.DLL, the top + * of the rectangle returned by LVM_GETSUBITEMRECT is off by + * the grid width when the grid is visible. The fix is to + * move the top of the rectangle up by the grid width. + */ + int gridWidth = parent.getLinesVisible () ? Table.GRID_WIDTH : 0; + if (OS.COMCTL32_VERSION >= OS.VERSION (5, 80)) rect.top -= gridWidth; + if (column !is 0) rect.left += gridWidth; + rect.right = Math.max (rect.right, rect.left); + rect.top += gridWidth; + rect.bottom = Math.max (rect.bottom - gridWidth, rect.top); + return rect; +} + +/** + * Returns <code>true</code> if the receiver is checked, + * and false otherwise. When the parent does not have + * the <code>CHECK</code> style, return false. + * + * @return the checked state of the checkbox + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getChecked () { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if ((parent.style & DWT.CHECK) is 0) return false; + return checked; +} + +/** + * Returns the font that the receiver will use to paint textual information for this item. + * + * @return the receiver's font + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public Font getFont () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + return font is -1 ? parent.getFont () : Font.win32_new (display, font); +} + +/** + * Returns the font that the receiver will use to paint textual information + * for the specified cell in this item. + * + * @param index the column index + * @return the receiver's font + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public Font getFont (int index) { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count -1) return getFont (); + int hFont = (cellFont !is null) ? cellFont [index] : font; + return hFont is -1 ? getFont () : Font.win32_new (display, hFont); +} + +/** + * Returns the foreground color that the receiver will use to draw. + * + * @return the receiver's foreground color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public Color getForeground () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if (foreground is -1) return parent.getForeground (); + return Color.win32_new (display, foreground); +} + +/** + * + * Returns the foreground color at the given column index in the receiver. + * + * @param index the column index + * @return the foreground color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public Color getForeground (int index) { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count -1) return getForeground (); + int pixel = cellForeground !is null ? cellForeground [index] : -1; + return pixel is -1 ? getForeground () : Color.win32_new (display, pixel); +} + +/** + * Returns <code>true</code> if the receiver is grayed, + * and false otherwise. When the parent does not have + * the <code>CHECK</code> style, return false. + * + * @return the grayed state of the checkbox + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getGrayed () { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if ((parent.style & DWT.CHECK) is 0) return false; + return grayed; +} + +public Image getImage () { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + return super.getImage (); +} + +/** + * Returns the image stored at the given column index in the receiver, + * or null if the image has not been set or if the column does not exist. + * + * @param index the column index + * @return the image stored at the given column index in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Image getImage (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if (index is 0) return getImage (); + if (images !is null) { + if (0 <= index && index < images.length) return images [index]; + } + return null; +} + +/** + * Returns a rectangle describing the size and location + * relative to its parent of an image at a column in the + * table. An empty rectangle is returned if index exceeds + * the index of the table's last column. + * + * @param index the index that specifies the column + * @return the receiver's bounding image rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Rectangle getImageBounds (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int itemIndex = parent.indexOf (this); + if (itemIndex is -1) return new Rectangle (0, 0, 0, 0); + RECT rect = getBounds (itemIndex, index, false, true, false); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +/** + * Gets the image indent. + * + * @return the indent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getImageIndent () { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + return imageIndent; +} + +String getNameText () { + if ((parent.style & DWT.VIRTUAL) !is 0) { + if (!cached) return "*virtual*"; //$NON-NLS-1$ + } + return super.getNameText (); +} + +/** + * Returns the receiver's parent, which must be a <code>Table</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Table getParent () { + checkWidget(); + return parent; +} + +public String getText () { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + return super.getText (); +} + +/** + * Returns the text stored at the given column index in the receiver, + * or empty string if the text has not been set. + * + * @param index the column index + * @return the text stored at the given column index in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if (index is 0) return getText (); + if (strings !is null) { + if (0 <= index && index < strings.length) { + String string = strings [index]; + return string !is null ? string : ""; + } + } + return ""; +} + +/** + * Returns a rectangle describing the size and location + * relative to its parent of the text at a column in the + * table. An empty rectangle is returned if index exceeds + * the index of the table's last column. + * + * @param index the index that specifies the column + * @return the receiver's bounding text rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +public Rectangle getTextBounds (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int itemIndex = parent.indexOf (this); + if (itemIndex is -1) return new Rectangle (0, 0, 0, 0); + RECT rect = getBounds (itemIndex, index, true, false, true); + rect.left += 2; + if (index !is 0) rect.left += Table.INSET; + rect.left = Math.min (rect.left, rect.right); + rect.right = rect.right - Table.INSET; + int width = Math.max (0, rect.right - rect.left); + int height = Math.max (0, rect.bottom - rect.top); + return new Rectangle (rect.left, rect.top, width, height); +} + +void redraw () { + if (parent.currentItem is this || parent.drawCount !is 0) return; + int hwnd = parent.handle; + if (!OS.IsWindowVisible (hwnd)) return; + int index = parent.indexOf (this); + if (index is -1) return; + OS.SendMessage (hwnd, OS.LVM_REDRAWITEMS, index, index); +} + +void redraw (int column, bool drawText, bool drawImage) { + if (parent.currentItem is this || parent.drawCount !is 0) return; + int hwnd = parent.handle; + if (!OS.IsWindowVisible (hwnd)) return; + int index = parent.indexOf (this); + if (index is -1) return; + RECT rect = getBounds (index, column, drawText, drawImage, true); + OS.InvalidateRect (hwnd, rect, true); +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; +} + +void releaseWidget () { + super.releaseWidget (); + strings = null; + images = null; + cellBackground = cellForeground = cellFont = null; +} + +/** + * Sets the receiver's background color to the color specified + * by the argument, or to the default system color for the item + * if the argument is null. + * + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public void setBackground (Color color) { + checkWidget (); + if (color !is null && color.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int pixel = -1; + if (color !is null) { + parent.setCustomDraw (true); + pixel = color.handle; + } + if (background is pixel) return; + background = pixel; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (); +} + +/** + * Sets the background color at the given column index in the receiver + * to the color specified by the argument, or to the default system color for the item + * if the argument is null. + * + * @param index the column index + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void setBackground (int index, Color color) { + checkWidget (); + if (color !is null && color.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + int pixel = -1; + if (color !is null) { + parent.setCustomDraw (true); + pixel = color.handle; + } + if (cellBackground is null) { + cellBackground = new int [count]; + for (int i = 0; i < count; i++) { + cellBackground [i] = -1; + } + } + if (cellBackground [index] is pixel) return; + cellBackground [index] = pixel; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (index, true, true); +} + +/** + * Sets the checked state of the checkbox for this item. This state change + * only applies if the Table was created with the DWT.CHECK style. + * + * @param checked the new checked state of the checkbox + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setChecked (bool checked) { + checkWidget(); + if ((parent.style & DWT.CHECK) is 0) return; + if (this.checked is checked) return; + setChecked (checked, false); +} + +void setChecked (bool checked, bool notify) { + this.checked = checked; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + if (notify) { + Event event = new Event(); + event.item = this; + event.detail = DWT.CHECK; + parent.postEvent (DWT.Selection, event); + } + redraw (); +} + +/** + * Sets the font that the receiver will use to paint textual information + * for this item to the font specified by the argument, or to the default font + * for that kind of control if the argument is null. + * + * @param font the new font (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void setFont (Font font){ + checkWidget (); + if (font !is null && font.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int hFont = -1; + if (font !is null) { + parent.setCustomDraw (true); + hFont = font.handle; + } + if (this.font is hFont) return; + this.font = hFont; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + /* + * Bug in Windows. Despite the fact that every item in the + * table always has LPSTR_TEXTCALLBACK, Windows caches the + * bounds for the selected items. This means that + * when you change the string to be something else, Windows + * correctly asks you for the new string but when the item + * is selected, the selection draws using the bounds of the + * previous item. The fix is to reset LPSTR_TEXTCALLBACK + * even though it has not changed, causing Windows to flush + * cached bounds. + */ + if ((parent.style & DWT.VIRTUAL) is 0 && cached) { + int itemIndex = parent.indexOf (this); + if (itemIndex !is -1) { + int hwnd = parent.handle; + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT; + lvItem.iItem = itemIndex; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (hwnd, OS.LVM_SETITEM, 0, lvItem); + cached = false; + } + } + parent.setScrollWidth (this, false); + redraw (); +} + +/** + * Sets the font that the receiver will use to paint textual information + * for the specified cell in this item to the font specified by the + * argument, or to the default font for that kind of control if the + * argument is null. + * + * @param index the column index + * @param font the new font (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void setFont (int index, Font font) { + checkWidget (); + if (font !is null && font.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + int hFont = -1; + if (font !is null) { + parent.setCustomDraw (true); + hFont = font.handle; + } + if (cellFont is null) { + cellFont = new int [count]; + for (int i = 0; i < count; i++) { + cellFont [i] = -1; + } + } + if (cellFont [index] is hFont) return; + cellFont [index] = hFont; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + if (index is 0) { + /* + * Bug in Windows. Despite the fact that every item in the + * table always has LPSTR_TEXTCALLBACK, Windows caches the + * bounds for the selected items. This means that + * when you change the string to be something else, Windows + * correctly asks you for the new string but when the item + * is selected, the selection draws using the bounds of the + * previous item. The fix is to reset LPSTR_TEXTCALLBACK + * even though it has not changed, causing Windows to flush + * cached bounds. + */ + if ((parent.style & DWT.VIRTUAL) is 0 && cached) { + int itemIndex = parent.indexOf (this); + if (itemIndex !is -1) { + int hwnd = parent.handle; + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT; + lvItem.iItem = itemIndex; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (hwnd, OS.LVM_SETITEM, 0, lvItem); + cached = false; + } + } + parent.setScrollWidth (this, false); + } + redraw (index, true, false); +} + +/** + * Sets the receiver's foreground color to the color specified + * by the argument, or to the default system color for the item + * if the argument is null. + * + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + */ +public void setForeground (Color color){ + checkWidget (); + if (color !is null && color.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int pixel = -1; + if (color !is null) { + parent.setCustomDraw (true); + pixel = color.handle; + } + if (foreground is pixel) return; + foreground = pixel; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (); +} + +/** + * Sets the foreground color at the given column index in the receiver + * to the color specified by the argument, or to the default system color for the item + * if the argument is null. + * + * @param index the column index + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void setForeground (int index, Color color){ + checkWidget (); + if (color !is null && color.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + int pixel = -1; + if (color !is null) { + parent.setCustomDraw (true); + pixel = color.handle; + } + if (cellForeground is null) { + cellForeground = new int [count]; + for (int i = 0; i < count; i++) { + cellForeground [i] = -1; + } + } + if (cellForeground [index] is pixel) return; + cellForeground [index] = pixel; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (index, true, false); +} + +/** + * Sets the grayed state of the checkbox for this item. This state change + * only applies if the Table was created with the DWT.CHECK style. + * + * @param grayed the new grayed state of the checkbox; + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setGrayed (bool grayed) { + checkWidget(); + if ((parent.style & DWT.CHECK) is 0) return; + if (this.grayed is grayed) return; + this.grayed = grayed; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (); +} + +/** + * Sets the image for multiple columns in the table. + * + * @param images the array of new images + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of images is null</li> + * <li>ERROR_INVALID_ARGUMENT - if one of the images has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (Image [] images) { + checkWidget(); + if (images is null) error (DWT.ERROR_NULL_ARGUMENT); + for (int i=0; i<images.length; i++) { + setImage (i, images [i]); + } +} + +/** + * Sets the receiver's image at a column. + * + * @param index the column index + * @param image the new image + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (int index, Image image) { + checkWidget(); + if (image !is null && image.isDisposed ()) { + error(DWT.ERROR_INVALID_ARGUMENT); + } + Image oldImage = null; + if (index is 0) { + if (image !is null && image.type is DWT.ICON) { + if (image.equals (this.image)) return; + } + oldImage = this.image; + super.setImage (image); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + if (images is null && index !is 0) { + images = new Image [count]; + images [0] = image; + } + if (images !is null) { + if (image !is null && image.type is DWT.ICON) { + if (image.equals (images [index])) return; + } + oldImage = images [index]; + images [index] = image; + } + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + + /* Ensure that the image list is created */ + parent.imageIndex (image, index); + + if (index is 0) parent.setScrollWidth (this, false); + bool drawText = (image is null && oldImage !is null) || (image !is null && oldImage is null); + redraw (index, drawText, true); +} + +public void setImage (Image image) { + checkWidget (); + setImage (0, image); +} + +/** + * Sets the indent of the first column's image, expressed in terms of the image's width. + * + * @param indent the new indent + * + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @deprecated this functionality is not supported on most platforms + */ +public void setImageIndent (int indent) { + checkWidget(); + if (indent < 0) return; + if (imageIndent is indent) return; + imageIndent = indent; + if ((parent.style & DWT.VIRTUAL) !is 0) { + cached = true; + } else { + int index = parent.indexOf (this); + if (index !is -1) { + int hwnd = parent.handle; + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_INDENT; + lvItem.iItem = index; + lvItem.iIndent = indent; + OS.SendMessage (hwnd, OS.LVM_SETITEM, 0, lvItem); + } + } + parent.setScrollWidth (this, false); + redraw (); +} + +/** + * Sets the text for multiple columns in the table. + * + * @param strings the array of new strings + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String [] strings) { + checkWidget(); + if (strings is null) error (DWT.ERROR_NULL_ARGUMENT); + for (int i=0; i<strings.length; i++) { + String string = strings [i]; + if (string !is null) setText (i, string); + } +} + +/** + * Sets the receiver's text at a column + * + * @param index the column index + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (int index, String string) { + checkWidget(); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if (index is 0) { + if (string.equals (text)) return; + super.setText (string); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + if (strings is null && index !is 0) { + strings = new String [count]; + strings [0] = text; + } + if (strings !is null) { + if (string.equals (strings [index])) return; + strings [index] = string; + } + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + if (index is 0) { + /* + * Bug in Windows. Despite the fact that every item in the + * table always has LPSTR_TEXTCALLBACK, Windows caches the + * bounds for the selected items. This means that + * when you change the string to be something else, Windows + * correctly asks you for the new string but when the item + * is selected, the selection draws using the bounds of the + * previous item. The fix is to reset LPSTR_TEXTCALLBACK + * even though it has not changed, causing Windows to flush + * cached bounds. + */ + if ((parent.style & DWT.VIRTUAL) is 0 && cached) { + int itemIndex = parent.indexOf (this); + if (itemIndex !is -1) { + int hwnd = parent.handle; + LVITEM lvItem = new LVITEM (); + lvItem.mask = OS.LVIF_TEXT; + lvItem.iItem = itemIndex; + lvItem.pszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (hwnd, OS.LVM_SETITEM, 0, lvItem); + cached = false; + } + } + parent.setScrollWidth (this, false); + } + redraw (index, true, false); +} + +public void setText (String string) { + checkWidget(); + setText (0, string); +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Text.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,2404 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Text; + +import dwt.widgets.Scrollable; +class Text : Scrollable { +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ModifyListener; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.events.VerifyListener; +import dwt.graphics.Font; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.GUITHREADINFO; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MSG; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SHRGINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class are selectable user interface + * objects that allow the user to enter and modify text. + * <p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>CANCEL, CENTER, LEFT, MULTI, PASSWORD, SEARCH, SINGLE, RIGHT, READ_ONLY, WRAP</dd> + * <dt><b>Events:</b></dt> + * <dd>DefaultSelection, Modify, Verify</dd> + * </dl> + * <p> + * Note: Only one of the styles MULTI and SINGLE may be specified, + * and only one of the styles LEFT, CENTER, and RIGHT may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ +public class Text extends Scrollable { + int tabs, oldStart, oldEnd; + bool doubleClick, ignoreModify, ignoreVerify, ignoreCharacter; + String message; + + /** + * The maximum number of characters that can be entered + * into a text widget. + * <p> + * Note that this value is platform dependent, based upon + * the native widget implementation. + * </p> + */ + public static final int LIMIT; + + /** + * The delimiter used by multi-line text widgets. When text + * is queried and from the widget, it will be delimited using + * this delimiter. + */ + public static final String DELIMITER; + + /* + * This code is intentionally commented. + */ +// static final char PASSWORD; + + /* + * These values can be different on different platforms. + * Therefore they are not initialized in the declaration + * to stop the compiler from inlining. + */ + static { + LIMIT = OS.IsWinNT ? 0x7FFFFFFF : 0x7FFF; + DELIMITER = "\r\n"; + } + + static final int EditProc; + static final TCHAR EditClass = new TCHAR (0, "EDIT", true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, EditClass, lpWndClass); + EditProc = lpWndClass.lpfnWndProc; + /* + * This code is intentionally commented. + */ +// int hwndText = OS.CreateWindowEx (0, +// EditClass, +// null, +// OS.WS_OVERLAPPED | OS.ES_PASSWORD, +// 0, 0, 0, 0, +// 0, +// 0, +// OS.GetModuleHandle (null), +// null); +// char echo = (char) OS.SendMessage (hwndText, OS.EM_GETPASSWORDCHAR, 0, 0); +// OS.DestroyWindow (hwndText); +// PASSWORD = echo !is 0 ? echo : '*'; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#SINGLE + * @see DWT#MULTI + * @see DWT#READ_ONLY + * @see DWT#WRAP + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Text (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + return OS.CallWindowProc (EditProc, hwnd, msg, wParam, lParam); +} + +void createHandle () { + super.createHandle (); + OS.SendMessage (handle, OS.EM_LIMITTEXT, 0, 0); + if ((style & DWT.READ_ONLY) !is 0) { + if ((style & (DWT.BORDER | DWT.H_SCROLL | DWT.V_SCROLL)) is 0) { + state |= THEME_BACKGROUND; + } + } +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver's text is modified, by sending + * it one of the messages defined in the <code>ModifyListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ModifyListener + * @see #removeModifyListener + */ +public void addModifyListener (ModifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Modify, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is not called for texts. + * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed in a single-line text, + * or when ENTER is pressed in a search text. If the receiver has the <code>DWT.SEARCH | DWT.CANCEL</code> style + * and the user cancels the search, the event object detail field contains the value <code>DWT.CANCEL</code>. + * </p> + * + * @param listener the listener which should be notified when the control is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver's text is verified, by sending + * it one of the messages defined in the <code>VerifyListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see VerifyListener + * @see #removeVerifyListener + */ +public void addVerifyListener (VerifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Verify, typedListener); +} + +/** + * Appends a string. + * <p> + * The new text is appended to the text at + * the end of the widget. + * </p> + * + * @param string the string to be appended + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void append (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + string = Display.withCrLf (string); + int length = OS.GetWindowTextLength (handle); + if (hooks (DWT.Verify) || filters (DWT.Verify)) { + string = verifyText (string, length, length, null); + if (string is null) return; + } + OS.SendMessage (handle, OS.EM_SETSEL, length, length); + TCHAR buffer = new TCHAR (getCodePage (), string, true); + /* + * Feature in Windows. When an edit control with ES_MULTILINE + * style that does not have the WS_VSCROLL style is full (i.e. + * there is no space at the end to draw any more characters), + * EM_REPLACESEL sends a WM_CHAR with a backspace character + * to remove any further text that is added. This is an + * implementation detail of the edit control that is unexpected + * and can cause endless recursion when EM_REPLACESEL is sent + * from a WM_CHAR handler. The fix is to ignore calling the + * handler from WM_CHAR. + */ + ignoreCharacter = true; + OS.SendMessage (handle, OS.EM_REPLACESEL, 0, buffer); + ignoreCharacter = false; + OS.SendMessage (handle, OS.EM_SCROLLCARET, 0, 0); +} + +static int checkStyle (int style) { + if ((style & DWT.SEARCH) !is 0) { + style |= DWT.SINGLE | DWT.BORDER; + style &= ~DWT.PASSWORD; + } + if (OS.COMCTL32_MAJOR < 6) style &= ~DWT.SEARCH; + if ((style & DWT.SINGLE) !is 0 && (style & DWT.MULTI) !is 0) { + style &= ~DWT.MULTI; + } + style = checkBits (style, DWT.LEFT, DWT.CENTER, DWT.RIGHT, 0, 0, 0); + if ((style & DWT.SINGLE) !is 0) style &= ~(DWT.H_SCROLL | DWT.V_SCROLL | DWT.WRAP); + if ((style & DWT.WRAP) !is 0) { + style |= DWT.MULTI; + style &= ~DWT.H_SCROLL; + } + if ((style & DWT.MULTI) !is 0) style &= ~DWT.PASSWORD; + if ((style & (DWT.SINGLE | DWT.MULTI)) !is 0) return style; + if ((style & (DWT.H_SCROLL | DWT.V_SCROLL)) !is 0) return style | DWT.MULTI; + return style | DWT.SINGLE; +} + +/** + * Clears the selection. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void clearSelection () { + checkWidget (); + if (OS.IsWinCE) { + /* + * Bug in WinCE. Calling EM_SETSEL with -1 and 0 is equivalent + * to calling EM_SETSEL with 0 and -1. It causes the entire + * text to be selected instead of clearing the selection. The + * fix is to set the start of the selection to the end of the + * current selection. + */ + int [] end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, (int []) null, end); + OS.SendMessage (handle, OS.EM_SETSEL, end [0], end [0]); + } else { + OS.SendMessage (handle, OS.EM_SETSEL, -1, 0); + } +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int height = 0, width = 0; + if (wHint is DWT.DEFAULT || hHint is DWT.DEFAULT) { + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, tm); + int count = (style & DWT.SINGLE) !is 0 ? 1 : OS.SendMessage (handle, OS.EM_GETLINECOUNT, 0, 0); + height = count * tm.tmHeight; + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_EDITCONTROL | OS.DT_NOPREFIX; + bool wrap = (style & DWT.MULTI) !is 0 && (style & DWT.WRAP) !is 0; + if (wrap && wHint !is DWT.DEFAULT) { + flags |= OS.DT_WORDBREAK; + rect.right = wHint; + } + int length = OS.GetWindowTextLength (handle); + if (length !is 0) { + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (handle, buffer, length + 1); + OS.DrawText (hDC, buffer, length, rect, flags); + width = rect.right - rect.left; + } + //This code is intentionally commented +// if (OS.COMCTL32_MAJOR >= 6) { +// if ((style & DWT.SEARCH) !is 0) { +// length = message.length (); +// if (length !is 0) { +// char [] buffer = new char [length + 1]; +// message.getChars (0, length, buffer, 0); +// SIZE size = new SIZE (); +// OS.GetTextExtentPoint32W (hDC, buffer, length, size); +// width = Math.max (width, size.cx); +// } +// } +// } + if (wrap && hHint is DWT.DEFAULT) { + int newHeight = rect.bottom - rect.top; + if (newHeight !is 0) height = newHeight; + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + } + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + Rectangle trim = computeTrim (0, 0, width, height); + return new Point (trim.width, trim.height); +} + +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + Rectangle rect = super.computeTrim (x, y, width, height); + /* + * The preferred height of a single-line text widget + * has been hand-crafted to be the same height as + * the single-line text widget in an editable combo + * box. + */ + int margins = OS.SendMessage(handle, OS.EM_GETMARGINS, 0, 0); + rect.x -= margins & 0xFFFF; + rect.width += (margins & 0xFFFF) + ((margins >> 16) & 0xFFFF); + if ((style & DWT.H_SCROLL) !is 0) rect.width++; + if ((style & DWT.BORDER) !is 0) { + rect.x -= 1; + rect.y -= 1; + rect.width += 2; + rect.height += 2; + } + return rect; +} + +/** + * Copies the selected text. + * <p> + * The current selection is copied to the clipboard. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void copy () { + checkWidget (); + OS.SendMessage (handle, OS.WM_COPY, 0, 0); +} + +void createWidget () { + super.createWidget (); + message = ""; + doubleClick = true; + setTabStops (tabs = 8); + fixAlignment (); +} + +/** + * Cuts the selected text. + * <p> + * The current selection is first copied to the + * clipboard and then deleted from the widget. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void cut () { + checkWidget (); + if ((style & DWT.READ_ONLY) !is 0) return; + OS.SendMessage (handle, OS.WM_CUT, 0, 0); +} + +int defaultBackground () { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + return OS.GetSysColor ((bits & OS.ES_READONLY) !is 0 ? OS.COLOR_3DFACE : OS.COLOR_WINDOW); +} + +bool dragDetect (int hwnd, int x, int y, bool filter, bool [] detect, bool [] consume) { + if (filter) { + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + if (start [0] !is end [0]) { + int lParam = (x & 0xFFFF) | ((y << 16) & 0xFFFF0000); + int position = OS.SendMessage (handle, OS.EM_CHARFROMPOS, 0, lParam) & 0xFFFF; + if (start [0] <= position && position < end [0]) { + if (super.dragDetect (hwnd, x, y, filter, detect, consume)) { + if (consume !is null) consume [0] = true; + return true; + } + } + } + return false; + } + return super.dragDetect (hwnd, x, y, filter, detect, consume); +} + +void fixAlignment () { + /* + * Feature in Windows. When the edit control is not + * mirrored, it uses WS_EX_RIGHT, WS_EX_RTLREADING and + * WS_EX_LEFTSCROLLBAR to give the control a right to + * left appearance. This causes the control to be lead + * aligned no matter what alignment was specified by + * the programmer. For example, setting ES_RIGHT and + * WS_EX_LAYOUTRTL should cause the contents of the + * control to be left (trail) aligned in a mirrored world. + * When the orientation is changed by the user or + * specified by the programmer, WS_EX_RIGHT conflicts + * with the mirrored alignment. The fix is to clear + * or set WS_EX_RIGHT to achieve the correct alignment + * according to the orientation and mirroring. + */ + if ((style & DWT.MIRRORED) !is 0) return; + int bits1 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + int bits2 = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((style & DWT.LEFT_TO_RIGHT) !is 0) { + /* + * Bug in Windows 98. When the edit control is created + * with the style ES_RIGHT it automatically sets the + * WS_EX_LEFTSCROLLBAR bit. The fix is to clear the + * bit when the orientation of the control is left + * to right. + */ + bits1 &= ~OS.WS_EX_LEFTSCROLLBAR; + if ((style & DWT.RIGHT) !is 0) { + bits1 |= OS.WS_EX_RIGHT; + bits2 |= OS.ES_RIGHT; + } + if ((style & DWT.LEFT) !is 0) { + bits1 &= ~OS.WS_EX_RIGHT; + bits2 &= ~OS.ES_RIGHT; + } + } else { + if ((style & DWT.RIGHT) !is 0) { + bits1 &= ~OS.WS_EX_RIGHT; + bits2 &= ~OS.ES_RIGHT; + } + if ((style & DWT.LEFT) !is 0) { + bits1 |= OS.WS_EX_RIGHT; + bits2 |= OS.ES_RIGHT; + } + } + if ((style & DWT.CENTER) !is 0) { + bits2 |= OS.ES_CENTER; + } + OS.SetWindowLong (handle, OS.GWL_EXSTYLE, bits1); + OS.SetWindowLong (handle, OS.GWL_STYLE, bits2); +} + +public int getBorderWidth () { + checkWidget (); + /* + * Feature in Windows 2000 and XP. Despite the fact that WS_BORDER + * is set when the edit control is created, the style bit is cleared. + * The fix is to avoid the check for WS_BORDER and use the DWT widget + * style bits instead. + */ +// if ((style & DWT.BORDER) !is 0 && (style & DWT.FLAT) !is 0) { +// return OS.GetSystemMetrics (OS.SM_CXBORDER); +// } + return super.getBorderWidth (); +} + +/** + * Returns the line number of the caret. + * <p> + * The line number of the caret is returned. + * </p> + * + * @return the line number + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getCaretLineNumber () { + checkWidget (); + return OS.SendMessage (handle, OS.EM_LINEFROMCHAR, -1, 0); +} + +/** + * Returns a point describing the receiver's location relative + * to its parent (or its display if its parent is null). + * <p> + * The location of the caret is returned. + * </p> + * + * @return a point, the location of the caret + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getCaretLocation () { + checkWidget (); + /* + * Bug in Windows. For some reason, Windows is unable + * to return the pixel coordinates of the last character + * in the widget. The fix is to temporarily insert a + * space, query the coordinates and delete the space. + * The selection is always an i-beam in this case because + * this is the only time the start of the selection can + * be equal to the last character position in the widget. + * If EM_POSFROMCHAR fails for any other reason, return + * pixel coordinates (0,0). + */ + int position = getCaretPosition (); + int caretPos = OS.SendMessage (handle, OS.EM_POSFROMCHAR, position, 0); + if (caretPos is -1) { + caretPos = 0; + if (position >= OS.GetWindowTextLength (handle)) { + int cp = getCodePage (); + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + OS.SendMessage (handle, OS.EM_SETSEL, position, position); + /* + * Feature in Windows. When an edit control with ES_MULTILINE + * style that does not have the WS_VSCROLL style is full (i.e. + * there is no space at the end to draw any more characters), + * EM_REPLACESEL sends a WM_CHAR with a backspace character + * to remove any further text that is added. This is an + * implementation detail of the edit control that is unexpected + * and can cause endless recursion when EM_REPLACESEL is sent + * from a WM_CHAR handler. The fix is to ignore calling the + * handler from WM_CHAR. + */ + ignoreCharacter = ignoreModify = true; + OS.SendMessage (handle, OS.EM_REPLACESEL, 0, new TCHAR (cp, " ", true)); + caretPos = OS.SendMessage (handle, OS.EM_POSFROMCHAR, position, 0); + OS.SendMessage (handle, OS.EM_SETSEL, position, position + 1); + OS.SendMessage (handle, OS.EM_REPLACESEL, 0, new TCHAR (cp, "", true)); + ignoreCharacter = ignoreModify = false; + OS.SendMessage (handle, OS.EM_SETSEL, start [0], start [0]); + OS.SendMessage (handle, OS.EM_SETSEL, start [0], end [0]); + } + } + return new Point ((short) (caretPos & 0xFFFF), (short) (caretPos >> 16)); +} + +/** + * Returns the character position of the caret. + * <p> + * Indexing is zero based. + * </p> + * + * @return the position of the caret + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getCaretPosition () { + checkWidget (); + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + /* + * In Windows, there is no API to get the position of the caret + * when the selection is not an i-beam. The best that can be done + * is to query the pixel position of the current caret and compare + * it to the pixel position of the start and end of the selection. + * + * NOTE: This does not work when the i-beam belongs to another + * control. In this case, guess that the i-beam is at the start + * of the selection. + */ + int caret = start [0]; + if (start [0] !is end [0]) { + int startLine = OS.SendMessage (handle, OS.EM_LINEFROMCHAR, start [0], 0); + int endLine = OS.SendMessage (handle, OS.EM_LINEFROMCHAR, end [0], 0); + if (startLine is endLine) { + if (!OS.IsWinCE) { + int idThread = OS.GetWindowThreadProcessId (handle, null); + GUITHREADINFO lpgui = new GUITHREADINFO (); + lpgui.cbSize = GUITHREADINFO.sizeof; + if (OS.GetGUIThreadInfo (idThread, lpgui)) { + if (lpgui.hwndCaret is handle || lpgui.hwndCaret is 0) { + POINT ptCurrentPos = new POINT (); + if (OS.GetCaretPos (ptCurrentPos)) { + int endPos = OS.SendMessage (handle, OS.EM_POSFROMCHAR, end [0], 0); + if (endPos is -1) { + int startPos = OS.SendMessage (handle, OS.EM_POSFROMCHAR, start [0], 0); + int startX = (short) (startPos & 0xFFFF); + if (ptCurrentPos.x > startX) caret = end [0]; + } else { + int endX = (short) (endPos & 0xFFFF); + if (ptCurrentPos.x >= endX) caret = end [0]; + } + } + } + } + } + } else { + int caretPos = OS.SendMessage (handle, OS.EM_LINEINDEX, -1, 0); + int caretLine = OS.SendMessage (handle, OS.EM_LINEFROMCHAR, caretPos, 0); + if (caretLine is endLine) caret = end [0]; + } + } + if (!OS.IsUnicode && OS.IsDBLocale) caret = mbcsToWcsPos (caret); + return caret; +} + +/** + * Returns the number of characters. + * + * @return number of characters in the widget + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getCharCount () { + checkWidget (); + int length = OS.GetWindowTextLength (handle); + if (!OS.IsUnicode && OS.IsDBLocale) length = mbcsToWcsPos (length); + return length; +} + +/** + * Returns the double click enabled flag. + * <p> + * The double click flag enables or disables the + * default action of the text widget when the user + * double clicks. + * </p> + * + * @return whether or not double click is enabled + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getDoubleClickEnabled () { + checkWidget (); + return doubleClick; +} + +/** + * Returns the echo character. + * <p> + * The echo character is the character that is + * displayed when the user enters text or the + * text is changed by the programmer. + * </p> + * + * @return the echo character + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setEchoChar + */ +public char getEchoChar () { + checkWidget (); + char echo = (char) OS.SendMessage (handle, OS.EM_GETPASSWORDCHAR, 0, 0); + if (echo !is 0 && (echo = Display.mbcsToWcs (echo, getCodePage ())) is 0) echo = '*'; + return echo; +} + +/** + * Returns the editable state. + * + * @return whether or not the receiver is editable + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getEditable () { + checkWidget (); + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + return (bits & OS.ES_READONLY) is 0; +} + +/** + * Returns the number of lines. + * + * @return the number of lines in the widget + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getLineCount () { + checkWidget (); + return OS.SendMessage (handle, OS.EM_GETLINECOUNT, 0, 0); +} + +/** + * Returns the line delimiter. + * + * @return a string that is the line delimiter + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #DELIMITER + */ +public String getLineDelimiter () { + checkWidget (); + return DELIMITER; +} + +/** + * Returns the height of a line. + * + * @return the height of a row of text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getLineHeight () { + checkWidget (); + int newFont, oldFont = 0; + int hDC = OS.GetDC (handle); + newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, tm); + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + return tm.tmHeight; +} + +/** + * Returns the orientation of the receiver, which will be one of the + * constants <code>DWT.LEFT_TO_RIGHT</code> or <code>DWT.RIGHT_TO_LEFT</code>. + * + * @return the orientation style + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1.2 + */ +public int getOrientation () { + checkWidget(); + return style & (DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT); +} + +/** + * Returns the widget message. When the widget is created + * with the style <code>DWT.SEARCH</code>, the message text + * is displayed as a hint for the user, indicating the + * purpose of the field. + * <p> + * Note: This operation is a <em>HINT</em> and is not + * supported on platforms that do not have this concept. + * </p> + * + * @return the widget message + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +public String getMessage () { + checkWidget (); + return message; +} + +/** + * Returns the character position at the given point in the receiver + * or -1 if no such position exists. The point is in the coordinate + * system of the receiver. + * <p> + * Indexing is zero based. + * </p> + * + * @return the position of the caret + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +//TODO - Javadoc +/*public*/ int getPosition (Point point) { + checkWidget(); + if (point is null) error (DWT.ERROR_NULL_ARGUMENT); + int lParam = (point.x & 0xFFFF) | ((point.y << 16) & 0xFFFF0000); + int position = OS.SendMessage (handle, OS.EM_CHARFROMPOS, 0, lParam) & 0xFFFF; + if (!OS.IsUnicode && OS.IsDBLocale) position = mbcsToWcsPos (position); + return position; +} + +/** + * Returns a <code>Point</code> whose x coordinate is the + * character position representing the start of the selected + * text, and whose y coordinate is the character position + * representing the end of the selection. An "empty" selection + * is indicated by the x and y coordinates having the same value. + * <p> + * Indexing is zero based. The range of a selection is from + * 0..N where N is the number of characters in the widget. + * </p> + * + * @return a point representing the selection start and end + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Point getSelection () { + checkWidget (); + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + if (!OS.IsUnicode && OS.IsDBLocale) { + start [0] = mbcsToWcsPos (start [0]); + end [0] = mbcsToWcsPos (end [0]); + } + return new Point (start [0], end [0]); +} + +/** + * Returns the number of selected characters. + * + * @return the number of selected characters. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelectionCount () { + checkWidget (); + Point selection = getSelection (); + return selection.y - selection.x; +} + +/** + * Gets the selected text, or an empty string if there is no current selection. + * + * @return the selected text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getSelectionText () { + checkWidget (); + int length = OS.GetWindowTextLength (handle); + if (length is 0) return ""; + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + if (start [0] is end [0]) return ""; + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (handle, buffer, length + 1); + return buffer.toString (start [0], end [0] - start [0]); +} + +/** + * Returns the number of tabs. + * <p> + * Tab stop spacing is specified in terms of the + * space (' ') character. The width of a single + * tab stop is the pixel width of the spaces. + * </p> + * + * @return the number of tab characters + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getTabs () { + checkWidget (); + return tabs; +} + +int getTabWidth (int tabs) { + int oldFont = 0; + RECT rect = new RECT (); + int hDC = OS.GetDC (handle); + int newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + int flags = OS.DT_CALCRECT | OS.DT_SINGLELINE | OS.DT_NOPREFIX; + TCHAR SPACE = new TCHAR (getCodePage (), " ", false); + OS.DrawText (hDC, SPACE, SPACE.length (), rect, flags); + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + return (rect.right - rect.left) * tabs; +} + +/** + * Returns the widget text. + * <p> + * The text for a text widget is the characters in the widget, or + * an empty string if this has never been set. + * </p> + * + * @return the widget text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText () { + checkWidget (); + int length = OS.GetWindowTextLength (handle); + if (length is 0) return ""; + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (handle, buffer, length + 1); + return buffer.toString (0, length); +} + +/** + * Returns a range of text. Returns an empty string if the + * start of the range is greater than the end. + * <p> + * Indexing is zero based. The range of + * a selection is from 0..N-1 where N is + * the number of characters in the widget. + * </p> + * + * @param start the start of the range + * @param end the end of the range + * @return the range of text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText (int start, int end) { + checkWidget (); + if (!(start <= end && 0 <= end)) return ""; + int length = OS.GetWindowTextLength (handle); + if (!OS.IsUnicode && OS.IsDBLocale) length = mbcsToWcsPos (length); + start = Math.max (0, start); + end = Math.min (end, length - 1); + /* + * NOTE: The current implementation uses substring () + * which can reference a potentially large character + * array. + */ + return getText ().substring (start, end + 1); +} + +/** + * Returns the maximum number of characters that the receiver is capable of holding. + * <p> + * If this has not been changed by <code>setTextLimit()</code>, + * it will be the constant <code>Text.LIMIT</code>. + * </p> + * + * @return the text limit + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #LIMIT + */ +public int getTextLimit () { + checkWidget (); + return OS.SendMessage (handle, OS.EM_GETLIMITTEXT, 0, 0) & 0x7FFFFFFF; +} + +/** + * Returns the zero-relative index of the line which is currently + * at the top of the receiver. + * <p> + * This index can change when lines are scrolled or new lines are added or removed. + * </p> + * + * @return the index of the top line + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getTopIndex () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) return 0; + return OS.SendMessage (handle, OS.EM_GETFIRSTVISIBLELINE, 0, 0); +} + +/** + * Returns the top pixel. + * <p> + * The top pixel is the pixel position of the line + * that is currently at the top of the widget. On + * some platforms, a text widget can be scrolled by + * pixels instead of lines so that a partial line + * is displayed at the top of the widget. + * </p><p> + * The top pixel changes when the widget is scrolled. + * The top pixel does not include the widget trimming. + * </p> + * + * @return the pixel position of the top line + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getTopPixel () { + checkWidget (); + /* + * Note, EM_GETSCROLLPOS is implemented in Rich Edit 3.0 + * and greater. The plain text widget and previous versions + * of Rich Edit return zero. + */ + int [] buffer = new int [2]; + int code = OS.SendMessage (handle, OS.EM_GETSCROLLPOS, 0, buffer); + if (code is 1) return buffer [1]; + return getTopIndex () * getLineHeight (); +} + +/** + * Inserts a string. + * <p> + * The old selection is replaced with the new text. + * </p> + * + * @param string the string + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is <code>null</code></li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void insert (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + string = Display.withCrLf (string); + if (hooks (DWT.Verify) || filters (DWT.Verify)) { + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + string = verifyText (string, start [0], end [0], null); + if (string is null) return; + } + TCHAR buffer = new TCHAR (getCodePage (), string, true); + /* + * Feature in Windows. When an edit control with ES_MULTILINE + * style that does not have the WS_VSCROLL style is full (i.e. + * there is no space at the end to draw any more characters), + * EM_REPLACESEL sends a WM_CHAR with a backspace character + * to remove any further text that is added. This is an + * implementation detail of the edit control that is unexpected + * and can cause endless recursion when EM_REPLACESEL is sent + * from a WM_CHAR handler. The fix is to ignore calling the + * handler from WM_CHAR. + */ + ignoreCharacter = true; + OS.SendMessage (handle, OS.EM_REPLACESEL, 0, buffer); + ignoreCharacter = false; +} + +int mbcsToWcsPos (int mbcsPos) { + if (mbcsPos <= 0) return 0; + if (OS.IsUnicode) return mbcsPos; + int cp = getCodePage (); + int wcsTotal = 0, mbcsTotal = 0; + byte [] buffer = new byte [128]; + String delimiter = getLineDelimiter(); + int delimiterSize = delimiter.length (); + int count = OS.SendMessageA (handle, OS.EM_GETLINECOUNT, 0, 0); + for (int line=0; line<count; line++) { + int wcsSize = 0; + int linePos = OS.SendMessageA (handle, OS.EM_LINEINDEX, line, 0); + int mbcsSize = OS.SendMessageA (handle, OS.EM_LINELENGTH, linePos, 0); + if (mbcsSize !is 0) { + if (mbcsSize + delimiterSize > buffer.length) { + buffer = new byte [mbcsSize + delimiterSize]; + } + //ENDIAN + buffer [0] = (byte) (mbcsSize & 0xFF); + buffer [1] = (byte) (mbcsSize >> 8); + mbcsSize = OS.SendMessageA (handle, OS.EM_GETLINE, line, buffer); + wcsSize = OS.MultiByteToWideChar (cp, OS.MB_PRECOMPOSED, buffer, mbcsSize, null, 0); + } + if (line - 1 !is count) { + for (int i=0; i<delimiterSize; i++) { + buffer [mbcsSize++] = (byte) delimiter.charAt (i); + } + wcsSize += delimiterSize; + } + if ((mbcsTotal + mbcsSize) >= mbcsPos) { + int bufferSize = mbcsPos - mbcsTotal; + wcsSize = OS.MultiByteToWideChar (cp, OS.MB_PRECOMPOSED, buffer, bufferSize, null, 0); + return wcsTotal + wcsSize; + } + wcsTotal += wcsSize; + mbcsTotal += mbcsSize; + } + return wcsTotal; +} + +/** + * Pastes text from clipboard. + * <p> + * The selected text is deleted from the widget + * and new text inserted from the clipboard. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void paste () { + checkWidget (); + if ((style & DWT.READ_ONLY) !is 0) return; + OS.SendMessage (handle, OS.WM_PASTE, 0, 0); +} + +void releaseWidget () { + super.releaseWidget (); + message = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the receiver's text is modified. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ModifyListener + * @see #addModifyListener + */ +public void removeModifyListener (ModifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Modify, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is verified. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see VerifyListener + * @see #addVerifyListener + */ +public void removeVerifyListener (VerifyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Verify, listener); +} + +/** + * Selects all the text in the receiver. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void selectAll () { + checkWidget (); + OS.SendMessage (handle, OS.EM_SETSEL, 0, -1); +} + +bool sendKeyEvent (int type, int msg, int wParam, int lParam, Event event) { + if (!super.sendKeyEvent (type, msg, wParam, lParam, event)) { + return false; + } + if ((style & DWT.READ_ONLY) !is 0) return true; + if (ignoreVerify) return true; + if (type !is DWT.KeyDown) return true; + if (msg !is OS.WM_CHAR && msg !is OS.WM_KEYDOWN && msg !is OS.WM_IME_CHAR) { + return true; + } + if (event.character is 0) return true; + if (!hooks (DWT.Verify) && !filters (DWT.Verify)) return true; + char key = event.character; + int stateMask = event.stateMask; + + /* + * Disable all magic keys that could modify the text + * and don't send events when Alt, Shift or Ctrl is + * pressed. + */ + switch (msg) { + case OS.WM_CHAR: + if (key !is 0x08 && key !is 0x7F && key !is '\r' && key !is '\t' && key !is '\n') break; + // FALL THROUGH + case OS.WM_KEYDOWN: + if ((stateMask & (DWT.ALT | DWT.SHIFT | DWT.CONTROL)) !is 0) return false; + break; + } + + /* + * Feature in Windows. If the left button is down in + * the text widget, it refuses the character. The fix + * is to detect this case and avoid sending a verify + * event. + */ + if (OS.GetKeyState (OS.VK_LBUTTON) < 0) { + if (handle is OS.GetCapture()) return true; + } + + /* Verify the character */ + String oldText = ""; + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + switch (key) { + case 0x08: /* Bs */ + if (start [0] is end [0]) { + if (start [0] is 0) return true; + int lineStart = OS.SendMessage (handle, OS.EM_LINEINDEX, -1, 0); + if (start [0] is lineStart) { + start [0] = start [0] - DELIMITER.length (); + } else { + start [0] = start [0] - 1; + if (!OS.IsUnicode && OS.IsDBLocale) { + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (handle, OS.EM_SETSEL, start [0], end [0]); + OS.SendMessage (handle, OS.EM_GETSEL, newStart, newEnd); + if (start [0] !is newStart [0]) start [0] = start [0] - 1; + } + } + start [0] = Math.max (start [0], 0); + } + break; + case 0x7F: /* Del */ + if (start [0] is end [0]) { + int length = OS.GetWindowTextLength (handle); + if (start [0] is length) return true; + int line = OS.SendMessage (handle, OS.EM_LINEFROMCHAR, end [0], 0); + int lineStart = OS.SendMessage (handle, OS.EM_LINEINDEX, line + 1, 0); + if (end [0] is lineStart - DELIMITER.length ()) { + end [0] = end [0] + DELIMITER.length (); + } else { + end [0] = end [0] + 1; + if (!OS.IsUnicode && OS.IsDBLocale) { + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (handle, OS.EM_SETSEL, start [0], end [0]); + OS.SendMessage (handle, OS.EM_GETSEL, newStart, newEnd); + if (end [0] !is newEnd [0]) end [0] = end [0] + 1; + } + } + end [0] = Math.min (end [0], length); + } + break; + case '\r': /* Return */ + if ((style & DWT.SINGLE) !is 0) return true; + oldText = DELIMITER; + break; + default: /* Tab and other characters */ + if (key !is '\t' && key < 0x20) return true; + oldText = new String (new char [] {key}); + break; + } + String newText = verifyText (oldText, start [0], end [0], event); + if (newText is null) return false; + if (newText is oldText) return true; + newText = Display.withCrLf (newText); + TCHAR buffer = new TCHAR (getCodePage (), newText, true); + OS.SendMessage (handle, OS.EM_SETSEL, start [0], end [0]); + /* + * Feature in Windows. When an edit control with ES_MULTILINE + * style that does not have the WS_VSCROLL style is full (i.e. + * there is no space at the end to draw any more characters), + * EM_REPLACESEL sends a WM_CHAR with a backspace character + * to remove any further text that is added. This is an + * implementation detail of the edit control that is unexpected + * and can cause endless recursion when EM_REPLACESEL is sent + * from a WM_CHAR handler. The fix is to ignore calling the + * handler from WM_CHAR. + */ + ignoreCharacter = true; + OS.SendMessage (handle, OS.EM_REPLACESEL, 0, buffer); + ignoreCharacter = false; + return false; +} + +void setBounds (int x, int y, int width, int height, int flags) { + /* + * Feature in Windows. When the caret is moved, + * the text widget scrolls to show the new location. + * This means that the text widget may be scrolled + * to the right in order to show the caret when the + * widget is not large enough to show both the caret + * location and all the text. Unfortunately, when + * the text widget is resized such that all the text + * and the caret could be visible, Windows does not + * scroll the widget back. The fix is to resize the + * text widget, set the selection to the start of the + * text and then restore the selection. This will + * cause the text widget compute the correct scroll + * position. + */ + if ((flags & OS.SWP_NOSIZE) is 0 && width !is 0) { + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + int margins = OS.SendMessage (handle, OS.EM_GETMARGINS, 0, 0); + int marginWidth = (margins & 0xFFFF) + ((margins >> 16) & 0xFFFF); + if (rect.right - rect.left <= marginWidth) { + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + if (start [0] !is 0 || end [0] !is 0) { + SetWindowPos (handle, 0, x, y, width, height, flags); + OS.SendMessage (handle, OS.EM_SETSEL, 0, 0); + OS.SendMessage (handle, OS.EM_SETSEL, start [0], end [0]); + return; + } + } + } + super.setBounds (x, y, width, height, flags); +} + +void setDefaultFont () { + super.setDefaultFont (); + setMargins (); +} + +/** + * Sets the double click enabled flag. + * <p> + * The double click flag enables or disables the + * default action of the text widget when the user + * double clicks. + * </p><p> + * Note: This operation is a hint and is not supported on + * platforms that do not have this concept. + * </p> + * + * @param doubleClick the new double click flag + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setDoubleClickEnabled (bool doubleClick) { + checkWidget (); + this.doubleClick = doubleClick; +} + +/** + * Sets the echo character. + * <p> + * The echo character is the character that is + * displayed when the user enters text or the + * text is changed by the programmer. Setting + * the echo character to '\0' clears the echo + * character and redraws the original text. + * If for any reason the echo character is invalid, + * or if the platform does not allow modification + * of the echo character, the default echo character + * for the platform is used. + * </p> + * + * @param echo the new echo character + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setEchoChar (char echo) { + checkWidget (); + if ((style & DWT.MULTI) !is 0) return; + if (echo !is 0) { + if ((echo = (char) Display.wcsToMbcs (echo, getCodePage ())) is 0) echo = '*'; + } + OS.SendMessage (handle, OS.EM_SETPASSWORDCHAR, echo, 0); + /* + * Bug in Windows. When the password character is changed, + * Windows does not redraw to show the new password character. + * The fix is to force a redraw when the character is set. + */ + OS.InvalidateRect (handle, null, true); +} + +/** + * Sets the editable state. + * + * @param editable the new editable state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setEditable (bool editable) { + checkWidget (); + style &= ~DWT.READ_ONLY; + if (!editable) style |= DWT.READ_ONLY; + OS.SendMessage (handle, OS.EM_SETREADONLY, editable ? 0 : 1, 0); +} + +public void setFont (Font font) { + checkWidget (); + super.setFont (font); + setTabStops (tabs); + setMargins (); +} + +void setMargins () { + /* + * Bug in Windows. When EM_SETCUEBANNER is used to set the + * banner text, the control does not take into account the + * margins, causing the first character to be clipped. The + * fix is to set the margins to zero. + */ + if (OS.COMCTL32_MAJOR >= 6) { + if ((style & DWT.SEARCH) !is 0) { + OS.SendMessage (handle, OS.EM_SETMARGINS, OS.EC_LEFTMARGIN | OS.EC_RIGHTMARGIN, 0); + } + } +} + +/** + * Sets the widget message. When the widget is created + * with the style <code>DWT.SEARCH</code>, the message text + * is displayed as a hint for the user, indicating the + * purpose of the field. + * <p> + * Note: This operation is a <em>HINT</em> and is not + * supported on platforms that do not have this concept. + * </p> + * + * @param message the new message + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the message is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +public void setMessage (String message) { + checkWidget (); + if (message is null) error (DWT.ERROR_NULL_ARGUMENT); + this.message = message; + if (OS.COMCTL32_MAJOR >= 6) { + if ((style & DWT.SEARCH) !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.ES_MULTILINE) is 0) { + int length = message.length (); + char [] chars = new char [length + 1]; + message.getChars(0, length, chars, 0); + OS.SendMessage (handle, OS.EM_SETCUEBANNER, 0, chars); + } + } + } +} + +/** + * Sets the orientation of the receiver, which must be one + * of the constants <code>DWT.LEFT_TO_RIGHT</code> or <code>DWT.RIGHT_TO_LEFT</code>. + * <p> + * Note: This operation is a hint and is not supported on + * platforms that do not have this concept. + * </p> + * + * @param orientation new orientation style + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1.2 + */ +public void setOrientation (int orientation) { + checkWidget(); + if (OS.IsWinCE) return; + if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return; + int flags = DWT.RIGHT_TO_LEFT | DWT.LEFT_TO_RIGHT; + if ((orientation & flags) is 0 || (orientation & flags) is flags) return; + style &= ~flags; + style |= orientation & flags; + int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + if ((style & DWT.RIGHT_TO_LEFT) !is 0) { + bits |= OS.WS_EX_RTLREADING | OS.WS_EX_LEFTSCROLLBAR; + } else { + bits &= ~(OS.WS_EX_RTLREADING | OS.WS_EX_LEFTSCROLLBAR); + } + OS.SetWindowLong (handle, OS.GWL_EXSTYLE, bits); + fixAlignment (); +} + +/** + * Sets the selection. + * <p> + * Indexing is zero based. The range of + * a selection is from 0..N where N is + * the number of characters in the widget. + * </p><p> + * Text selections are specified in terms of + * caret positions. In a text widget that + * contains N characters, there are N+1 caret + * positions, ranging from 0..N. This differs + * from other functions that address character + * position such as getText () that use the + * regular array indexing rules. + * </p> + * + * @param start new caret position + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (int start) { + checkWidget (); + if (!OS.IsUnicode && OS.IsDBLocale) start = wcsToMbcsPos (start); + OS.SendMessage (handle, OS.EM_SETSEL, start, start); + OS.SendMessage (handle, OS.EM_SCROLLCARET, 0, 0); +} + +/** + * Sets the selection to the range specified + * by the given start and end indices. + * <p> + * Indexing is zero based. The range of + * a selection is from 0..N where N is + * the number of characters in the widget. + * </p><p> + * Text selections are specified in terms of + * caret positions. In a text widget that + * contains N characters, there are N+1 caret + * positions, ranging from 0..N. This differs + * from other functions that address character + * position such as getText () that use the + * usual array indexing rules. + * </p> + * + * @param start the start of the range + * @param end the end of the range + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (int start, int end) { + checkWidget (); + if (!OS.IsUnicode && OS.IsDBLocale) { + start = wcsToMbcsPos (start); + end = wcsToMbcsPos (end); + } + OS.SendMessage (handle, OS.EM_SETSEL, start, end); + OS.SendMessage (handle, OS.EM_SCROLLCARET, 0, 0); +} + +public void setRedraw (bool redraw) { + checkWidget (); + super.setRedraw (redraw); + /* + * Feature in Windows. When WM_SETREDRAW is used to turn + * redraw off, the edit control is not scrolled to show the + * i-beam. The fix is to detect that the i-beam has moved + * while redraw is turned off and force it to be visible + * when redraw is restored. + */ + if (drawCount !is 0) return; + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + if (!redraw) { + oldStart = start [0]; oldEnd = end [0]; + } else { + if (oldStart is start [0] && oldEnd is end [0]) return; + OS.SendMessage (handle, OS.EM_SCROLLCARET, 0, 0); + } +} + +/** + * Sets the selection to the range specified + * by the given point, where the x coordinate + * represents the start index and the y coordinate + * represents the end index. + * <p> + * Indexing is zero based. The range of + * a selection is from 0..N where N is + * the number of characters in the widget. + * </p><p> + * Text selections are specified in terms of + * caret positions. In a text widget that + * contains N characters, there are N+1 caret + * positions, ranging from 0..N. This differs + * from other functions that address character + * position such as getText () that use the + * usual array indexing rules. + * </p> + * + * @param selection the point + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (Point selection) { + checkWidget (); + if (selection is null) error (DWT.ERROR_NULL_ARGUMENT); + setSelection (selection.x, selection.y); +} + +/** + * Sets the number of tabs. + * <p> + * Tab stop spacing is specified in terms of the + * space (' ') character. The width of a single + * tab stop is the pixel width of the spaces. + * </p> + * + * @param tabs the number of tabs + * + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setTabs (int tabs) { + checkWidget (); + if (tabs < 0) return; + setTabStops (this.tabs = tabs); +} + +void setTabStops (int tabs) { + /* + * Feature in Windows. Windows expects the tab spacing in + * dialog units so we must convert from space widths. Due + * to round off error, the tab spacing may not be the exact + * number of space widths, depending on the font. + */ + int width = (getTabWidth (tabs) * 4) / (OS.GetDialogBaseUnits () & 0xFFFF); + OS.SendMessage (handle, OS.EM_SETTABSTOPS, 1, new int [] {width}); +} + +/** + * Sets the contents of the receiver to the given string. If the receiver has style + * SINGLE and the argument contains multiple lines of text, the result of this + * operation is undefined and may vary from platform to platform. + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + string = Display.withCrLf (string); + if (hooks (DWT.Verify) || filters (DWT.Verify)) { + int length = OS.GetWindowTextLength (handle); + string = verifyText (string, 0, length, null); + if (string is null) return; + } + int limit = OS.SendMessage (handle, OS.EM_GETLIMITTEXT, 0, 0) & 0x7FFFFFFF; + if (string.length () > limit) string = string.substring (0, limit); + TCHAR buffer = new TCHAR (getCodePage (), string, true); + OS.SetWindowText (handle, buffer); + /* + * Bug in Windows. When the widget is multi line + * text widget, it does not send a WM_COMMAND with + * control code EN_CHANGE from SetWindowText () to + * notify the application that the text has changed. + * The fix is to send the event. + */ + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.ES_MULTILINE) !is 0) { + sendEvent (DWT.Modify); + // widget could be disposed at this point + } +} + +/** + * Sets the maximum number of characters that the receiver + * is capable of holding to be the argument. + * <p> + * Instead of trying to set the text limit to zero, consider + * creating a read-only text widget. + * </p><p> + * To reset this value to the default, use <code>setTextLimit(Text.LIMIT)</code>. + * Specifying a limit value larger than <code>Text.LIMIT</code> sets the + * receiver's limit to <code>Text.LIMIT</code>. + * </p> + * + * @param limit new text limit + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #LIMIT + */ +public void setTextLimit (int limit) { + checkWidget (); + if (limit is 0) error (DWT.ERROR_CANNOT_BE_ZERO); + OS.SendMessage (handle, OS.EM_SETLIMITTEXT, limit, 0); +} + +/** + * Sets the zero-relative index of the line which is currently + * at the top of the receiver. This index can change when lines + * are scrolled or new lines are added and removed. + * + * @param index the index of the top item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setTopIndex (int index) { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) return; + int count = OS.SendMessage (handle, OS.EM_GETLINECOUNT, 0, 0); + index = Math.min (Math.max (index, 0), count - 1); + int topIndex = OS.SendMessage (handle, OS.EM_GETFIRSTVISIBLELINE, 0, 0); + OS.SendMessage (handle, OS.EM_LINESCROLL, 0, index - topIndex); +} + +/** + * Shows the selection. + * <p> + * If the selection is already showing + * in the receiver, this method simply returns. Otherwise, + * lines are scrolled until the selection is visible. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void showSelection () { + checkWidget (); + OS.SendMessage (handle, OS.EM_SCROLLCARET, 0, 0); +} + +String verifyText (String string, int start, int end, Event keyEvent) { + if (ignoreVerify) return string; + Event event = new Event (); + event.text = string; + event.start = start; + event.end = end; + if (keyEvent !is null) { + event.character = keyEvent.character; + event.keyCode = keyEvent.keyCode; + event.stateMask = keyEvent.stateMask; + } + if (!OS.IsUnicode && OS.IsDBLocale) { + event.start = mbcsToWcsPos (start); + event.end = mbcsToWcsPos (end); + } + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the verify + * event. If this happens, answer null to cancel + * the operation. + */ + sendEvent (DWT.Verify, event); + if (!event.doit || isDisposed ()) return null; + return event.text; +} + +int wcsToMbcsPos (int wcsPos) { + if (wcsPos <= 0) return 0; + if (OS.IsUnicode) return wcsPos; + int cp = getCodePage (); + int wcsTotal = 0, mbcsTotal = 0; + byte [] buffer = new byte [128]; + String delimiter = getLineDelimiter (); + int delimiterSize = delimiter.length (); + int count = OS.SendMessageA (handle, OS.EM_GETLINECOUNT, 0, 0); + for (int line=0; line<count; line++) { + int wcsSize = 0; + int linePos = OS.SendMessageA (handle, OS.EM_LINEINDEX, line, 0); + int mbcsSize = OS.SendMessageA (handle, OS.EM_LINELENGTH, linePos, 0); + if (mbcsSize !is 0) { + if (mbcsSize + delimiterSize > buffer.length) { + buffer = new byte [mbcsSize + delimiterSize]; + } + //ENDIAN + buffer [0] = (byte) (mbcsSize & 0xFF); + buffer [1] = (byte) (mbcsSize >> 8); + mbcsSize = OS.SendMessageA (handle, OS.EM_GETLINE, line, buffer); + wcsSize = OS.MultiByteToWideChar (cp, OS.MB_PRECOMPOSED, buffer, mbcsSize, null, 0); + } + if (line - 1 !is count) { + for (int i=0; i<delimiterSize; i++) { + buffer [mbcsSize++] = (byte) delimiter.charAt (i); + } + wcsSize += delimiterSize; + } + if ((wcsTotal + wcsSize) >= wcsPos) { + wcsSize = 0; + int index = 0; + while (index < mbcsSize) { + if ((wcsTotal + wcsSize) is wcsPos) { + return mbcsTotal + index; + } + if (OS.IsDBCSLeadByte (buffer [index++])) index++; + wcsSize++; + } + return mbcsTotal + mbcsSize; + } + wcsTotal += wcsSize; + mbcsTotal += mbcsSize; + } + return mbcsTotal; +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.ES_AUTOHSCROLL; + if ((style & DWT.PASSWORD) !is 0) bits |= OS.ES_PASSWORD; + if ((style & DWT.CENTER) !is 0) bits |= OS.ES_CENTER; + if ((style & DWT.RIGHT) !is 0) bits |= OS.ES_RIGHT; + if ((style & DWT.READ_ONLY) !is 0) bits |= OS.ES_READONLY; + if ((style & DWT.SINGLE) !is 0) { + /* + * Feature in Windows. When a text control is read-only, + * uses COLOR_3DFACE for the background . If the text + * controls single-line and is within a tab folder or + * some other themed control, using WM_ERASEBKGND and + * WM_CTRCOLOR to draw the theme background results in + * pixel corruption. The fix is to use an ES_MULTILINE + * text control instead. + */ + if ((style & DWT.READ_ONLY) !is 0) { + if ((style & (DWT.BORDER | DWT.H_SCROLL | DWT.V_SCROLL)) is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + bits |= OS.ES_MULTILINE; + } + } + } + return bits; + } + bits |= OS.ES_MULTILINE | OS.ES_NOHIDESEL | OS.ES_AUTOVSCROLL; + if ((style & DWT.WRAP) !is 0) bits &= ~(OS.WS_HSCROLL | OS.ES_AUTOHSCROLL); + return bits; +} + +TCHAR windowClass () { + return EditClass; +} + +int windowProc () { + return EditProc; +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + if (msg is OS.EM_UNDO) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.ES_MULTILINE) is 0) { + LRESULT result = wmClipboard (OS.EM_UNDO, wParam, lParam); + if (result !is null) return result.value; + return callWindowProc (hwnd, OS.EM_UNDO, wParam, lParam); + } + } + if (msg is Display.SWT_RESTORECARET) { + callWindowProc (hwnd, OS.WM_KILLFOCUS, 0, 0); + callWindowProc (hwnd, OS.WM_SETFOCUS, 0, 0); + return 1; + } + return super.windowProc (hwnd, msg, wParam, lParam); +} + +LRESULT WM_CHAR (int wParam, int lParam) { + if (ignoreCharacter) return null; + LRESULT result = super.WM_CHAR (wParam, lParam); + if (result !is null) return result; + + /* + * Bug in Windows. When the user types CTRL and BS + * in an edit control, a DEL character is generated. + * Rather than deleting the text, the DEL character + * is inserted into the control. The fix is to detect + * this case and not call the window proc. + */ + switch (wParam) { + case DWT.DEL: + if (OS.GetKeyState (OS.VK_CONTROL) < 0) { + return LRESULT.ZERO; + } + } + + /* + * Feature in Windows. For some reason, when the + * widget is a single line text widget, when the + * user presses tab, return or escape, Windows beeps. + * The fix is to look for these keys and not call + * the window proc. + */ + if ((style & DWT.SINGLE) !is 0) { + switch (wParam) { + case DWT.CR: + postEvent (DWT.DefaultSelection); + // FALL THROUGH + case DWT.TAB: + case DWT.ESC: return LRESULT.ZERO; + } + } + return result; +} + +LRESULT WM_CLEAR (int wParam, int lParam) { + LRESULT result = super.WM_CLEAR (wParam, lParam); + if (result !is null) return result; + return wmClipboard (OS.WM_CLEAR, wParam, lParam); +} + +LRESULT WM_CUT (int wParam, int lParam) { + LRESULT result = super.WM_CUT (wParam, lParam); + if (result !is null) return result; + return wmClipboard (OS.WM_CUT, wParam, lParam); +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + if ((style & DWT.READ_ONLY) !is 0) { + if ((style & (DWT.BORDER | DWT.H_SCROLL | DWT.V_SCROLL)) is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.ES_MULTILINE) !is 0) { + Control control = findBackgroundControl (); + if (control is null && background is -1) { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + control = findThemeControl (); + if (control !is null) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + fillThemeBackground (wParam, control, rect); + return LRESULT.ONE; + } + } + } + } + } + } + } + return result; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + LRESULT result = super.WM_GETDLGCODE (wParam, lParam); + if (result !is null) return result; + + /* + * Bug in WinCE PPC. For some reason, sending WM_GETDLGCODE + * to a multi-line edit control causes it to ignore return and + * tab keys. The fix is to return the value which is normally + * returned by the text window proc on other versions of Windows. + */ + if (OS.IsPPC) { + if ((style & DWT.MULTI) !is 0 && (style & DWT.READ_ONLY) is 0 && lParam is 0) { + return new LRESULT (OS.DLGC_HASSETSEL | OS.DLGC_WANTALLKEYS | OS.DLGC_WANTCHARS); + } + } + + /* + * Feature in Windows. Despite the fact that the + * edit control is read only, it still returns a + * dialog code indicating that it wants all keys. + * The fix is to detect this case and clear the bits. + * + * NOTE: A read only edit control processes arrow keys + * so DLGC_WANTARROWS should not be cleared. + */ + if ((style & DWT.READ_ONLY) !is 0) { + int code = callWindowProc (handle, OS.WM_GETDLGCODE, wParam, lParam); + code &= ~(OS.DLGC_WANTALLKEYS | OS.DLGC_WANTTAB); + return new LRESULT (code); + } + return null; +} + +LRESULT WM_IME_CHAR (int wParam, int lParam) { + + /* Process a DBCS character */ + Display display = this.display; + display.lastKey = 0; + display.lastAscii = wParam; + display.lastVirtual = display.lastNull = display.lastDead = false; + if (!sendKeyEvent (DWT.KeyDown, OS.WM_IME_CHAR, wParam, lParam)) { + return LRESULT.ZERO; + } + + /* + * Feature in Windows. The Windows text widget uses + * two 2 WM_CHAR's to process a DBCS key instead of + * using WM_IME_CHAR. The fix is to allow the text + * widget to get the WM_CHAR's but ignore sending + * them to the application. + */ + ignoreCharacter = true; + int result = callWindowProc (handle, OS.WM_IME_CHAR, wParam, lParam); + MSG msg = new MSG (); + int flags = OS.PM_REMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; + while (OS.PeekMessage (msg, handle, OS.WM_CHAR, OS.WM_CHAR, flags)) { + OS.TranslateMessage (msg); + OS.DispatchMessage (msg); + } + ignoreCharacter = false; + + sendKeyEvent (DWT.KeyUp, OS.WM_IME_CHAR, wParam, lParam); + // widget could be disposed at this point + display.lastKey = display.lastAscii = 0; + return new LRESULT (result); +} + +LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) { + /* + * Prevent Windows from processing WM_LBUTTONDBLCLK + * when double clicking behavior is disabled by not + * calling the window proc. + */ + LRESULT result = null; + sendMouseEvent (DWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); + if (!sendMouseEvent (DWT.MouseDoubleClick, 1, handle, OS.WM_LBUTTONDBLCLK, wParam, lParam)) { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + if (!doubleClick) return LRESULT.ZERO; + + /* + * Bug in Windows. When the last line of text in the + * widget is double clicked and the line is empty, Windows + * hides the i-beam then moves it to the first line in + * the widget but does not scroll to show the user. + * If the user types without clicking the mouse, invalid + * characters are displayed at the end of each line of + * text in the widget. The fix is to detect this case + * and avoid calling the window proc. + */ + int [] start = new int [1], end = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + if (start [0] is end [0]) { + int length = OS.GetWindowTextLength (handle); + if (length is start [0]) { + int code = OS.SendMessage (handle, OS.EM_LINELENGTH, length, 0); + if (code is 0) return LRESULT.ZERO; + } + } + return result; +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + if (OS.IsPPC) { + LRESULT result = null; + Display display = this.display; + display.captureChanged = false; + bool dispatch = sendMouseEvent (DWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); + /* + * Note: On WinCE PPC, only attempt to recognize the gesture for + * a context menu when the control contains a valid menu or there + * are listeners for the MenuDetect event. + * + * Note: On WinCE PPC, the gesture that brings up a popup menu + * on the text widget must keep the current text selection. As a + * result, the window proc is only called if the menu is not shown. + */ + bool hasMenu = menu !is null && !menu.isDisposed (); + if (hasMenu || hooks (DWT.MenuDetect)) { + int x = (short) (lParam & 0xFFFF); + int y = (short) (lParam >> 16); + SHRGINFO shrg = new SHRGINFO (); + shrg.cbSize = SHRGINFO.sizeof; + shrg.hwndClient = handle; + shrg.ptDown_x = x; + shrg.ptDown_y = y; + shrg.dwFlags = OS.SHRG_RETURNCMD; + int type = OS.SHRecognizeGesture (shrg); + if (type is OS.GN_CONTEXTMENU) { + showMenu (x, y); + return LRESULT.ONE; + } + } + if (dispatch) { + result = new LRESULT (callWindowProc (handle, OS.WM_LBUTTONDOWN, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return result; + } + return super.WM_LBUTTONDOWN (wParam, lParam); +} + +LRESULT WM_PASTE (int wParam, int lParam) { + LRESULT result = super.WM_PASTE (wParam, lParam); + if (result !is null) return result; + return wmClipboard (OS.WM_PASTE, wParam, lParam); +} + +LRESULT WM_UNDO (int wParam, int lParam) { + LRESULT result = super.WM_UNDO (wParam, lParam); + if (result !is null) return result; + return wmClipboard (OS.WM_UNDO, wParam, lParam); +} + +LRESULT wmClipboard (int msg, int wParam, int lParam) { + if ((style & DWT.READ_ONLY) !is 0) return null; + if (!hooks (DWT.Verify) && !filters (DWT.Verify)) return null; + bool call = false; + int [] start = new int [1], end = new int [1]; + String newText = null; + switch (msg) { + case OS.WM_CLEAR: + case OS.WM_CUT: + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + if (start [0] !is end [0]) { + newText = ""; + call = true; + } + break; + case OS.WM_PASTE: + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + newText = getClipboardText (); + break; + case OS.EM_UNDO: + case OS.WM_UNDO: + if (OS.SendMessage (handle, OS.EM_CANUNDO, 0, 0) !is 0) { + ignoreModify = ignoreCharacter = true; + OS.SendMessage (handle, OS.EM_GETSEL, start, end); + callWindowProc (handle, msg, wParam, lParam); + int length = OS.GetWindowTextLength (handle); + int [] newStart = new int [1], newEnd = new int [1]; + OS.SendMessage (handle, OS.EM_GETSEL, newStart, newEnd); + if (length !is 0 && newStart [0] !is newEnd [0]) { + TCHAR buffer = new TCHAR (getCodePage (), length + 1); + OS.GetWindowText (handle, buffer, length + 1); + newText = buffer.toString (newStart [0], newEnd [0] - newStart [0]); + } else { + newText = ""; + } + callWindowProc (handle, msg, wParam, lParam); + ignoreModify = ignoreCharacter = false; + } + break; + } + if (newText !is null) { + String oldText = newText; + newText = verifyText (newText, start [0], end [0], null); + if (newText is null) return LRESULT.ZERO; + if (!newText.equals (oldText)) { + if (call) { + callWindowProc (handle, msg, wParam, lParam); + } + newText = Display.withCrLf (newText); + TCHAR buffer = new TCHAR (getCodePage (), newText, true); + /* + * Feature in Windows. When an edit control with ES_MULTILINE + * style that does not have the WS_VSCROLL style is full (i.e. + * there is no space at the end to draw any more characters), + * EM_REPLACESEL sends a WM_CHAR with a backspace character + * to remove any further text that is added. This is an + * implementation detail of the edit control that is unexpected + * and can cause endless recursion when EM_REPLACESEL is sent + * from a WM_CHAR handler. The fix is to ignore calling the + * handler from WM_CHAR. + */ + ignoreCharacter = true; + OS.SendMessage (handle, OS.EM_REPLACESEL, 0, buffer); + ignoreCharacter = false; + return LRESULT.ZERO; + } + } + if (msg is OS.WM_UNDO) { + ignoreVerify = ignoreCharacter = true; + callWindowProc (handle, OS.WM_UNDO, wParam, lParam); + ignoreVerify = ignoreCharacter = false; + return LRESULT.ONE; + } + return null; +} + +LRESULT wmColorChild (int wParam, int lParam) { + if ((style & DWT.READ_ONLY) !is 0) { + if ((style & (DWT.BORDER | DWT.H_SCROLL | DWT.V_SCROLL)) is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.ES_MULTILINE) !is 0) { + Control control = findBackgroundControl (); + if (control is null && background is -1) { + if ((state & THEME_BACKGROUND) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + control = findThemeControl (); + if (control !is null) { + OS.SetTextColor (wParam, getForegroundPixel ()); + OS.SetBkColor (wParam, getBackgroundPixel ()); + OS.SetBkMode (wParam, OS.TRANSPARENT); + return new LRESULT (OS.GetStockObject (OS.NULL_BRUSH)); + } + } + } + } + } + } + } + return super.wmColorChild (wParam, lParam); +} + +LRESULT wmCommandChild (int wParam, int lParam) { + int code = wParam >> 16; + switch (code) { + case OS.EN_CHANGE: + if (ignoreModify) break; + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the modify + * event. If this happens, end the processing of the + * Windows message by returning zero as the result of + * the window proc. + */ + sendEvent (DWT.Modify); + if (isDisposed ()) return LRESULT.ZERO; + break; + case OS.EN_ALIGN_LTR_EC: + style &= ~DWT.RIGHT_TO_LEFT; + style |= DWT.LEFT_TO_RIGHT; + fixAlignment (); + break; + case OS.EN_ALIGN_RTL_EC: + style &= ~DWT.LEFT_TO_RIGHT; + style |= DWT.RIGHT_TO_LEFT; + fixAlignment (); + break; + } + return super.wmCommandChild (wParam, lParam); +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ToolBar.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1387 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.ToolBar; + +import dwt.widgets.Composite; +class ToolBar : Composite { +} +/++ + +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Font; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.ImageList; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.NMCUSTOMDRAW; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.NMTBHOTITEM; +import dwt.internal.win32.NMTOOLBAR; +import dwt.internal.win32.NMTTDISPINFO; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TBBUTTON; +import dwt.internal.win32.TBBUTTONINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TOOLINFO; +import dwt.internal.win32.WINDOWPOS; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class support the layout of selectable + * tool bar items. + * <p> + * The item children that may be added to instances of this class + * must be of type <code>ToolItem</code>. + * </p><p> + * Note that although this class is a subclass of <code>Composite</code>, + * it does not make sense to add <code>Control</code> children to it, + * or set a layout on it. + * </p><p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>FLAT, WRAP, RIGHT, HORIZONTAL, VERTICAL, SHADOW_OUT</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ +public class ToolBar extends Composite { + int lastFocusId; + ToolItem [] items; + bool ignoreResize, ignoreMouse; + ImageList imageList, disabledImageList, hotImageList; + static final int ToolBarProc; + static final TCHAR ToolBarClass = new TCHAR (0, OS.TOOLBARCLASSNAME, true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, ToolBarClass, lpWndClass); + ToolBarProc = lpWndClass.lpfnWndProc; + } + + /* + * From the Windows SDK for TB_SETBUTTONSIZE: + * + * "If an application does not explicitly + * set the button size, the size defaults + * to 24 by 22 pixels". + */ + static final int DEFAULT_WIDTH = 24; + static final int DEFAULT_HEIGHT = 22; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#FLAT + * @see DWT#WRAP + * @see DWT#RIGHT + * @see DWT#HORIZONTAL + * @see DWT#SHADOW_OUT + * @see DWT#VERTICAL + * @see Widget#checkSubclass() + * @see Widget#getStyle() + */ +public ToolBar (Composite parent, int style) { + super (parent, checkStyle (style)); + /* + * Ensure that either of HORIZONTAL or VERTICAL is set. + * NOTE: HORIZONTAL and VERTICAL have the same values + * as H_SCROLL and V_SCROLL so it is necessary to first + * clear these bits to avoid scroll bars and then reset + * the bits using the original style supplied by the + * programmer. + * + * NOTE: The CCS_VERT style cannot be applied when the + * widget is created because of this conflict. + */ + if ((style & DWT.VERTICAL) !is 0) { + this.style |= DWT.VERTICAL; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + /* + * Feature in Windows. When a tool bar has the style + * TBSTYLE_LIST and has a drop down item, Window leaves + * too much padding around the button. This affects + * every button in the tool bar and makes the preferred + * height too big. The fix is to set the TBSTYLE_LIST + * when the tool bar contains both text and images. + * + * NOTE: Tool bars with CCS_VERT must have TBSTYLE_LIST + * set before any item is added or the tool bar does + * not lay out properly. The work around does not run + * in this case. + */ + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if ((style & DWT.RIGHT) !is 0) bits |= OS.TBSTYLE_LIST; + } + OS.SetWindowLong (handle, OS.GWL_STYLE, bits | OS.CCS_VERT); + } else { + this.style |= DWT.HORIZONTAL; + } +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + /* + * Bug in Windows. For some reason, during the processing + * of WM_SYSCHAR, the tool bar window proc does not call the + * default window proc causing mnemonics for the menu bar + * to be ignored. The fix is to always call the default + * window proc for WM_SYSCHAR. + */ + if (msg is OS.WM_SYSCHAR) { + return OS.DefWindowProc (hwnd, msg, wParam, lParam); + } + return OS.CallWindowProc (ToolBarProc, hwnd, msg, wParam, lParam); +} + +static int checkStyle (int style) { + /* + * On Windows, only flat tool bars can be traversed. + */ + if ((style & DWT.FLAT) is 0) style |= DWT.NO_FOCUS; + + /* + * A vertical tool bar cannot wrap because TB_SETROWS + * fails when the toolbar has TBSTYLE_WRAPABLE. + */ + if ((style & DWT.VERTICAL) !is 0) style &= ~DWT.WRAP; + + /* + * Even though it is legal to create this widget + * with scroll bars, they serve no useful purpose + * because they do not automatically scroll the + * widget's client area. The fix is to clear + * the DWT style. + */ + return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); +} + +void checkBuffered () { + super.checkBuffered (); + if (OS.COMCTL32_MAJOR >= 6) style |= DWT.DOUBLE_BUFFERED; +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0; + if ((style & DWT.VERTICAL) !is 0) { + RECT rect = new RECT (); + TBBUTTON lpButton = new TBBUTTON (); + int count = OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); + for (int i=0; i<count; i++) { + OS.SendMessage (handle, OS.TB_GETITEMRECT, i, rect); + height = Math.max (height, rect.bottom); + OS.SendMessage (handle, OS.TB_GETBUTTON, i, lpButton); + if ((lpButton.fsStyle & OS.BTNS_SEP) !is 0) { + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_SIZE; + OS.SendMessage (handle, OS.TB_GETBUTTONINFO, lpButton.idCommand, info); + width = Math.max (width, info.cx); + } else { + width = Math.max (width, rect.right); + } + } + } else { + RECT oldRect = new RECT (); + OS.GetWindowRect (handle, oldRect); + int oldWidth = oldRect.right - oldRect.left; + int oldHeight = oldRect.bottom - oldRect.top; + int border = getBorderWidth (); + int newWidth = wHint is DWT.DEFAULT ? 0x3FFF : wHint + border * 2; + int newHeight = hHint is DWT.DEFAULT ? 0x3FFF : hHint + border * 2; + bool redraw = drawCount is 0 && OS.IsWindowVisible (handle); + ignoreResize = true; + if (redraw) OS.UpdateWindow (handle); + int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOREDRAW | OS.SWP_NOZORDER; + SetWindowPos (handle, 0, 0, 0, newWidth, newHeight, flags); + int count = OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); + if (count !is 0) { + RECT rect = new RECT (); + OS.SendMessage (handle, OS.TB_GETITEMRECT, count - 1, rect); + width = Math.max (width, rect.right); + height = Math.max (height, rect.bottom); + } + SetWindowPos (handle, 0, 0, 0, oldWidth, oldHeight, flags); + if (redraw) OS.ValidateRect (handle, null); + ignoreResize = false; + } + + /* + * From the Windows SDK for TB_SETBUTTONSIZE: + * + * "If an application does not explicitly + * set the button size, the size defaults + * to 24 by 22 pixels". + */ + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + Rectangle trim = computeTrim (0, 0, width, height); + width = trim.width; height = trim.height; + return new Point (width, height); +} + +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + Rectangle trim = super.computeTrim (x, y, width, height); + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.CCS_NODIVIDER) is 0) trim.height += 2; + return trim; +} + +void createHandle () { + super.createHandle (); + state &= ~CANVAS; + + /* + * Feature in Windows. When TBSTYLE_FLAT is used to create + * a flat toolbar, for some reason TBSTYLE_TRANSPARENT is + * also set. This causes the toolbar to flicker when it is + * moved or resized. The fix is to clear TBSTYLE_TRANSPARENT. + * + * NOTE: This work around is unnecessary on XP. There is no + * flickering and clearing the TBSTYLE_TRANSPARENT interferes + * with the XP theme. + */ + if ((style & DWT.FLAT) !is 0) { + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bits &= ~OS.TBSTYLE_TRANSPARENT; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + } + } + + /* + * Feature in Windows. Despite the fact that the + * tool tip text contains \r\n, the tooltip will + * not honour the new line unless TTM_SETMAXTIPWIDTH + * is set. The fix is to set TTM_SETMAXTIPWIDTH to + * a large value. + */ + /* + * These lines are intentionally commented. The tool + * bar currently sets this value to 300 so it is not + * necessary to set TTM_SETMAXTIPWIDTH. + */ +// int hwndToolTip = OS.SendMessage (handle, OS.TB_GETTOOLTIPS, 0, 0); +// OS.SendMessage (hwndToolTip, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); + + /* + * Feature in Windows. When the control is created, + * it does not use the default system font. A new HFONT + * is created and destroyed when the control is destroyed. + * This means that a program that queries the font from + * this control, uses the font in another control and then + * destroys this control will have the font unexpectedly + * destroyed in the other control. The fix is to assign + * the font ourselves each time the control is created. + * The control will not destroy a font that it did not + * create. + */ + int hFont = OS.GetStockObject (OS.SYSTEM_FONT); + OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0); + + /* Set the button struct, bitmap and button sizes */ + OS.SendMessage (handle, OS.TB_BUTTONSTRUCTSIZE, TBBUTTON.sizeof, 0); + OS.SendMessage (handle, OS.TB_SETBITMAPSIZE, 0, 0); + OS.SendMessage (handle, OS.TB_SETBUTTONSIZE, 0, 0); + + /* Set the extended style bits */ + int bits = OS.TBSTYLE_EX_DRAWDDARROWS | OS.TBSTYLE_EX_MIXEDBUTTONS | OS.TBSTYLE_EX_HIDECLIPPEDBUTTONS; + if (OS.COMCTL32_MAJOR >= 6) bits |= OS.TBSTYLE_EX_DOUBLEBUFFER; + OS.SendMessage (handle, OS.TB_SETEXTENDEDSTYLE, 0, bits); +} + +void createItem (ToolItem item, int index) { + int count = OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); + if (!(0 <= index && index <= count)) error (DWT.ERROR_INVALID_RANGE); + int id = 0; + while (id < items.length && items [id] !is null) id++; + if (id is items.length) { + ToolItem [] newItems = new ToolItem [items.length + 4]; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; + } + int bits = item.widgetStyle (); + TBBUTTON lpButton = new TBBUTTON (); + lpButton.idCommand = id; + lpButton.fsStyle = (byte) bits; + lpButton.fsState = (byte) OS.TBSTATE_ENABLED; + + /* + * Bug in Windows. Despite the fact that the image list + * index has never been set for the item, Windows always + * assumes that the image index for the item is valid. + * When an item is inserted, the image index is zero. + * Therefore, when the first image is inserted and is + * assigned image index zero, every item draws with this + * image. The fix is to set the image index to none + * when the item is created. This is not necessary in + * the case when the item has the BTNS_SEP style because + * separators cannot show images. + */ + if ((bits & OS.BTNS_SEP) is 0) lpButton.iBitmap = OS.I_IMAGENONE; + if (OS.SendMessage (handle, OS.TB_INSERTBUTTON, index, lpButton) is 0) { + error (DWT.ERROR_ITEM_NOT_ADDED); + } + items [item.id = id] = item; + if ((style & DWT.VERTICAL) !is 0) setRowCount (count + 1); + layoutItems (); +} + +void createWidget () { + super.createWidget (); + items = new ToolItem [4]; + lastFocusId = -1; +} + +int defaultBackground () { + if (OS.IsWinCE) return OS.GetSysColor (OS.COLOR_BTNFACE); + return super.defaultBackground (); +} + +void destroyItem (ToolItem item) { + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_IMAGE | OS.TBIF_STYLE; + int index = OS.SendMessage (handle, OS.TB_GETBUTTONINFO, item.id, info); + /* + * Feature in Windows. For some reason, a tool item that has + * the style BTNS_SEP does not return I_IMAGENONE when queried + * for an image index, despite the fact that no attempt has been + * made to assign an image to the item. As a result, operations + * on an image list that use the wrong index cause random results. + * The fix is to ensure that the tool item is not a separator + * before using the image index. Since separators cannot have + * an image and one is never assigned, this is not a problem. + */ + if ((info.fsStyle & OS.BTNS_SEP) is 0 && info.iImage !is OS.I_IMAGENONE) { + if (imageList !is null) imageList.put (info.iImage, null); + if (hotImageList !is null) hotImageList.put (info.iImage, null); + if (disabledImageList !is null) disabledImageList.put (info.iImage, null); + } + OS.SendMessage (handle, OS.TB_DELETEBUTTON, index, 0); + if (item.id is lastFocusId) lastFocusId = -1; + items [item.id] = null; + item.id = -1; + int count = OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); + if (count is 0) { + if (imageList !is null) { + OS.SendMessage (handle, OS.TB_SETIMAGELIST, 0, 0); + display.releaseToolImageList (imageList); + } + if (hotImageList !is null) { + OS.SendMessage (handle, OS.TB_SETHOTIMAGELIST, 0, 0); + display.releaseToolHotImageList (hotImageList); + } + if (disabledImageList !is null) { + OS.SendMessage (handle, OS.TB_SETDISABLEDIMAGELIST, 0, 0); + display.releaseToolDisabledImageList (disabledImageList); + } + imageList = hotImageList = disabledImageList = null; + items = new ToolItem [4]; + } + if ((style & DWT.VERTICAL) !is 0) setRowCount (count - 1); + layoutItems (); +} + +void enableWidget (bool enabled) { + super.enableWidget (enabled); + /* + * Bug in Windows. When a tool item with the style + * BTNS_CHECK or BTNS_CHECKGROUP is selected and then + * disabled, the item does not draw using the disabled + * image. The fix is to use the disabled image in all + * image lists for the item. + * + * Feature in Windows. When a tool bar is disabled, + * the text draws disabled but the images do not. + * The fix is to use the disabled image in all image + * lists for all items. + */ + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null) { + if ((item.style & DWT.SEPARATOR) is 0) { + item.updateImages (enabled && item.getEnabled ()); + } + } + } +} + +ImageList getDisabledImageList () { + return disabledImageList; +} + +ImageList getHotImageList () { + return hotImageList; +} + +ImageList getImageList () { + return imageList; +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ToolItem getItem (int index) { + checkWidget (); + int count = OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); + if (!(0 <= index && index < count)) error (DWT.ERROR_INVALID_RANGE); + TBBUTTON lpButton = new TBBUTTON (); + int result = OS.SendMessage (handle, OS.TB_GETBUTTON, index, lpButton); + if (result is 0) error (DWT.ERROR_CANNOT_GET_ITEM); + return items [lpButton.idCommand]; +} + +/** + * Returns the item at the given point in the receiver + * or null if no such item exists. The point is in the + * coordinate system of the receiver. + * + * @param point the point used to locate the item + * @return the item at the given point + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ToolItem getItem (Point point) { + checkWidget (); + if (point is null) error (DWT.ERROR_NULL_ARGUMENT); + ToolItem [] items = getItems (); + for (int i=0; i<items.length; i++) { + Rectangle rect = items [i].getBounds (); + if (rect.contains (point)) return items [i]; + } + return null; +} + +/** + * Returns the number of items contained in the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + return OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); +} + +/** + * Returns an array of <code>ToolItem</code>s which are the items + * in the receiver. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ToolItem [] getItems () { + checkWidget (); + int count = OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); + TBBUTTON lpButton = new TBBUTTON (); + ToolItem [] result = new ToolItem [count]; + for (int i=0; i<count; i++) { + OS.SendMessage (handle, OS.TB_GETBUTTON, i, lpButton); + result [i] = items [lpButton.idCommand]; + } + return result; +} + +/** + * Returns the number of rows in the receiver. When + * the receiver has the <code>WRAP</code> style, the + * number of rows can be greater than one. Otherwise, + * the number of rows is always one. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getRowCount () { + checkWidget (); + if ((style & DWT.VERTICAL) !is 0) { + return OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); + } + return OS.SendMessage (handle, OS.TB_GETROWS, 0, 0); +} + +/** + * Searches the receiver's list starting at the first item + * (index 0) until an item is found that is equal to the + * argument, and returns the index of that item. If no item + * is found, returns -1. + * + * @param item the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the tool item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the tool item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int indexOf (ToolItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + return OS.SendMessage (handle, OS.TB_COMMANDTOINDEX, item.id, 0); +} + +void layoutItems () { + /* + * Feature in Windows. When a tool bar has the style + * TBSTYLE_LIST and has a drop down item, Window leaves + * too much padding around the button. This affects + * every button in the tool bar and makes the preferred + * height too big. The fix is to set the TBSTYLE_LIST + * when the tool bar contains both text and images. + * + * NOTE: Tool bars with CCS_VERT must have TBSTYLE_LIST + * set before any item is added or the tool bar does + * not lay out properly. The work around does not run + * in this case. + */ + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if ((style & DWT.RIGHT) !is 0 && (style & DWT.VERTICAL) is 0) { + bool hasText = false, hasImage = false; + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null) { + if (!hasText) hasText = item.text.length () !is 0; + if (!hasImage) hasImage = item.image !is null; + if (hasText && hasImage) break; + } + } + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits; + if (hasText && hasImage) { + newBits |= OS.TBSTYLE_LIST; + } else { + newBits &= ~OS.TBSTYLE_LIST; + } + if (newBits !is oldBits) { + setDropDownItems (false); + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + /* + * Feature in Windows. For some reason, when the style + * is changed to TBSTYLE_LIST, Windows does not lay out + * the tool items. The fix is to use WM_SETFONT to force + * the tool bar to redraw and lay out. + */ + int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0); + setDropDownItems (true); + } + } + } + + if ((style & DWT.WRAP) !is 0) { + OS.SendMessage (handle, OS.TB_AUTOSIZE, 0, 0); + } + /* + * When the tool bar is vertical, make the width of each button + * be the width of the widest button in the tool bar. Note that + * when the tool bar contains a drop down item, it needs to take + * into account extra padding. + */ + if ((style & DWT.VERTICAL) !is 0) { + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_SIZE; + int size = OS.SendMessage (handle, OS.TB_GETBUTTONSIZE, 0, 0); + info.cx = (short) (size & 0xFFFF); + int index = 0; + while (index < items.length) { + ToolItem item = items [index]; + if (item !is null && (item.style & DWT.DROP_DOWN) !is 0) break; + index++; + } + if (index < items.length) { + int padding = OS.SendMessage (handle, OS.TB_GETPADDING, 0, 0); + info.cx += (padding & 0xFFFF) * 2; + } + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null && (item.style & DWT.SEPARATOR) is 0) { + OS.SendMessage (handle, OS.TB_SETBUTTONINFO, item.id, info); + } + } + } + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null) item.resizeControl (); + } +} + +bool mnemonicHit (char ch) { + int key = Display.wcsToMbcs (ch); + int [] id = new int [1]; + if (OS.SendMessage (handle, OS.TB_MAPACCELERATOR, key, id) is 0) { + return false; + } + if ((style & DWT.FLAT) !is 0 && !setTabGroupFocus ()) return false; + int index = OS.SendMessage (handle, OS.TB_COMMANDTOINDEX, id [0], 0); + if (index is -1) return false; + OS.SendMessage (handle, OS.TB_SETHOTITEM, index, 0); + items [id [0]].click (false); + return true; +} + +bool mnemonicMatch (char ch) { + int key = Display.wcsToMbcs (ch); + int [] id = new int [1]; + if (OS.SendMessage (handle, OS.TB_MAPACCELERATOR, key, id) is 0) { + return false; + } + /* + * Feature in Windows. TB_MAPACCELERATOR matches either the mnemonic + * character or the first character in a tool item. This behavior is + * undocumented and unwanted. The fix is to ensure that the tool item + * contains a mnemonic when TB_MAPACCELERATOR returns true. + */ + int index = OS.SendMessage (handle, OS.TB_COMMANDTOINDEX, id [0], 0); + if (index is -1) return false; + return findMnemonic (items [id [0]].text) !is '\0'; +} + +void releaseChildren (bool destroy) { + if (items !is null) { + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null && !item.isDisposed ()) { + item.release (false); + } + } + items = null; + } + super.releaseChildren (destroy); +} + +void releaseWidget () { + super.releaseWidget (); + if (imageList !is null) { + OS.SendMessage (handle, OS.TB_SETIMAGELIST, 0, 0); + display.releaseToolImageList (imageList); + } + if (hotImageList !is null) { + OS.SendMessage (handle, OS.TB_SETHOTIMAGELIST, 0, 0); + display.releaseToolHotImageList (hotImageList); + } + if (disabledImageList !is null) { + OS.SendMessage (handle, OS.TB_SETDISABLEDIMAGELIST, 0, 0); + display.releaseToolDisabledImageList (disabledImageList); + } + imageList = hotImageList = disabledImageList = null; +} + +void removeControl (Control control) { + super.removeControl (control); + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null && item.control is control) { + item.setControl (null); + } + } +} + +void setBackgroundImage (int hBitmap) { + super.setBackgroundImage (hBitmap); + setBackgroundTransparent (hBitmap !is 0); +} + +void setBackgroundPixel (int pixel) { + super.setBackgroundPixel (pixel); + setBackgroundTransparent (pixel !is -1); +} + +void setBackgroundTransparent (bool transparent) { + /* + * Feature in Windows. When TBSTYLE_TRANSPARENT is set + * in a tool bar that is drawing a background, images in + * the image list that include transparency information + * do not draw correctly. The fix is to clear and set + * TBSTYLE_TRANSPARENT depending on the background color. + * + * NOTE: This work around is unnecessary on XP. The + * TBSTYLE_TRANSPARENT style is never cleared on that + * platform. + */ + if ((style & DWT.FLAT) !is 0) { + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if (!transparent && findBackgroundControl () is null) { + bits &= ~OS.TBSTYLE_TRANSPARENT; + } else { + bits |= OS.TBSTYLE_TRANSPARENT; + } + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + } + } +} + +void setBounds (int x, int y, int width, int height, int flags) { + /* + * Feature in Windows. For some reason, when a tool bar is + * repositioned more than once using DeferWindowPos () into + * the same HDWP, the toolbar redraws more than once, defeating + * the purpose of DeferWindowPos (). The fix is to end the + * deferred positioning before the next tool bar is added, + * ensuring that only one tool bar position is deferred at + * any given time. + */ + if (parent.lpwp !is null) { + if (drawCount is 0 && OS.IsWindowVisible (handle)) { + parent.setResizeChildren (false); + parent.setResizeChildren (true); + } + } + super.setBounds (x, y, width, height, flags); +} + +void setDefaultFont () { + super.setDefaultFont (); + OS.SendMessage (handle, OS.TB_SETBITMAPSIZE, 0, 0); + OS.SendMessage (handle, OS.TB_SETBUTTONSIZE, 0, 0); +} + +void setDropDownItems (bool set) { + /* + * Feature in Windows. When the first button in a tool bar + * is a drop down item, Window leaves too much padding around + * the button. This affects every button in the tool bar and + * makes the preferred height too big. The fix is clear the + * BTNS_DROPDOWN before Windows lays out the tool bar and set + * the bit afterwards. + * + * NOTE: This work around only runs when the tool bar contains + * both text and images. + */ + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + bool hasText = false, hasImage = false; + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null) { + if (!hasText) hasText = item.text.length () !is 0; + if (!hasImage) hasImage = item.image !is null; + if (hasText && hasImage) break; + } + } + if (hasImage && !hasText) { + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null && (item.style & DWT.DROP_DOWN) !is 0) { + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_STYLE; + OS.SendMessage (handle, OS.TB_GETBUTTONINFO, item.id, info); + if (set) { + info.fsStyle |= OS.BTNS_DROPDOWN; + } else { + info.fsStyle &= ~OS.BTNS_DROPDOWN; + } + OS.SendMessage (handle, OS.TB_SETBUTTONINFO, item.id, info); + } + } + } + } +} + +void setDisabledImageList (ImageList imageList) { + if (disabledImageList is imageList) return; + int hImageList = 0; + if ((disabledImageList = imageList) !is null) { + hImageList = disabledImageList.getHandle (); + } + setDropDownItems (false); + OS.SendMessage (handle, OS.TB_SETDISABLEDIMAGELIST, 0, hImageList); + setDropDownItems (true); +} + +public void setFont (Font font) { + checkWidget (); + setDropDownItems (false); + super.setFont (font); + setDropDownItems (true); + /* + * Bug in Windows. When WM_SETFONT is sent to a tool bar + * that contains only separators, causes the bitmap and button + * sizes to be set. The fix is to reset these sizes after the font + * has been changed when the tool bar contains only separators. + */ + int index = 0; + int mask = DWT.PUSH | DWT.CHECK | DWT.RADIO | DWT.DROP_DOWN; + while (index < items.length) { + ToolItem item = items [index]; + if (item !is null && (item.style & mask) !is 0) break; + index++; + } + if (index is items.length) { + OS.SendMessage (handle, OS.TB_SETBITMAPSIZE, 0, 0); + OS.SendMessage (handle, OS.TB_SETBUTTONSIZE, 0, 0); + } + layoutItems (); +} + +void setHotImageList (ImageList imageList) { + if (hotImageList is imageList) return; + int hImageList = 0; + if ((hotImageList = imageList) !is null) { + hImageList = hotImageList.getHandle (); + } + setDropDownItems (false); + OS.SendMessage (handle, OS.TB_SETHOTIMAGELIST, 0, hImageList); + setDropDownItems (true); +} + +void setImageList (ImageList imageList) { + if (this.imageList is imageList) return; + int hImageList = 0; + if ((this.imageList = imageList) !is null) { + hImageList = imageList.getHandle (); + } + setDropDownItems (false); + OS.SendMessage (handle, OS.TB_SETIMAGELIST, 0, hImageList); + setDropDownItems (true); +} + +public bool setParent (Composite parent) { + checkWidget (); + if (!super.setParent (parent)) return false; + OS.SendMessage (handle, OS.TB_SETPARENT, parent.handle, 0); + return true; +} + +public void setRedraw (bool redraw) { + checkWidget (); + setDropDownItems (false); + super.setRedraw (redraw); + setDropDownItems (true); +} + +void setRowCount (int count) { + if ((style & DWT.VERTICAL) !is 0) { + /* + * Feature in Windows. When the TB_SETROWS is used to set the + * number of rows in a tool bar, the tool bar is resized to show + * the items. This is unexpected. The fix is to save and restore + * the current size of the tool bar. + */ + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + OS.MapWindowPoints (0, parent.handle, rect, 2); + ignoreResize = true; + /* + * Feature in Windows. When the last button in a tool bar has the + * style BTNS_SEP and TB_SETROWS is used to set the number of rows + * in the tool bar, depending on the number of buttons, the toolbar + * will wrap items with the style BTNS_CHECK, even when the fLarger + * flags is used to force the number of rows to be larger than the + * number of items. The fix is to set the number of rows to be two + * larger than the actual number of rows in the tool bar. When items + * are being added, as long as the number of rows is at least one + * item larger than the count, the tool bar is laid out properly. + * When items are being removed, setting the number of rows to be + * one more than the item count has no effect. The number of rows + * is already one more causing TB_SETROWS to do nothing. Therefore, + * choosing two instead of one as the row increment fixes both cases. + */ + count += 2; + OS.SendMessage (handle, OS.TB_SETROWS, (1 << 16) | count, 0); + int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOZORDER; + SetWindowPos (handle, 0, 0, 0, rect.right - rect.left, rect.bottom - rect.top, flags); + ignoreResize = false; + } +} + +bool setTabItemFocus () { + int index = 0; + while (index < items.length) { + ToolItem item = items [index]; + if (item !is null && (item.style & DWT.SEPARATOR) is 0) { + if (item.getEnabled ()) break; + } + index++; + } + if (index is items.length) return false; + return super.setTabItemFocus (); +} + +String toolTipText (NMTTDISPINFO hdr) { + if ((hdr.uFlags & OS.TTF_IDISHWND) !is 0) { + return null; + } + /* + * Bug in Windows. On Windows XP, when TB_SETHOTITEM is + * used to set the hot item, the tool bar control attempts + * to display the tool tip, even when the cursor is not in + * the hot item. The fix is to detect this case and fail to + * provide the string, causing no tool tip to be displayed. + */ + if (!hasCursor ()) return ""; //$NON-NLS-1$ + int index = hdr.idFrom; + int hwndToolTip = OS.SendMessage (handle, OS.TB_GETTOOLTIPS, 0, 0); + if (hwndToolTip is hdr.hwndFrom) { + if (toolTipText !is null) return ""; //$NON-NLS-1$ + if (0 <= index && index < items.length) { + ToolItem item = items [index]; + if (item !is null) return item.toolTipText; + } + } + return super.toolTipText (hdr); +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.CCS_NORESIZE | OS.TBSTYLE_TOOLTIPS | OS.TBSTYLE_CUSTOMERASE; + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) bits |= OS.TBSTYLE_TRANSPARENT; + if ((style & DWT.SHADOW_OUT) is 0) bits |= OS.CCS_NODIVIDER; + if ((style & DWT.WRAP) !is 0) bits |= OS.TBSTYLE_WRAPABLE; + if ((style & DWT.FLAT) !is 0) bits |= OS.TBSTYLE_FLAT; + /* + * Feature in Windows. When a tool bar has the style + * TBSTYLE_LIST and has a drop down item, Window leaves + * too much padding around the button. This affects + * every button in the tool bar and makes the preferred + * height too big. The fix is to set the TBSTYLE_LIST + * when the tool bar contains both text and images. + * + * NOTE: Tool bars with CCS_VERT must have TBSTYLE_LIST + * set before any item is added or the tool bar does + * not lay out properly. The work around does not run + * in this case. + */ + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + if ((style & DWT.RIGHT) !is 0) bits |= OS.TBSTYLE_LIST; + } + return bits; +} + +TCHAR windowClass () { + return ToolBarClass; +} + +int windowProc () { + return ToolBarProc; +} + +LRESULT WM_CAPTURECHANGED (int wParam, int lParam) { + LRESULT result = super.WM_CAPTURECHANGED (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. When the tool bar loses capture while an + * item is pressed, the item remains pressed. The fix is + * unpress all items using TB_SETSTATE and TBSTATE_PRESSED. + */ + for (int i=0; i<items.length; i++) { + ToolItem item = items [i]; + if (item !is null) { + int fsState = OS.SendMessage (handle, OS.TB_GETSTATE, item.id, 0); + if ((fsState & OS.TBSTATE_PRESSED) !is 0) { + fsState &= ~OS.TBSTATE_PRESSED; + OS.SendMessage (handle, OS.TB_SETSTATE, item.id, fsState); + } + } + } + return result; +} + +LRESULT WM_CHAR (int wParam, int lParam) { + LRESULT result = super.WM_CHAR (wParam, lParam); + if (result !is null) return result; + switch (wParam) { + case ' ': + int index = OS.SendMessage (handle, OS.TB_GETHOTITEM, 0, 0); + if (index !is -1) { + TBBUTTON lpButton = new TBBUTTON (); + int code = OS.SendMessage (handle, OS.TB_GETBUTTON, index, lpButton); + if (code !is 0) { + items [lpButton.idCommand].click (false); + return LRESULT.ZERO; + } + } + } + return result; +} + +LRESULT WM_COMMAND (int wParam, int lParam) { + /* + * Feature in Windows. When the toolbar window + * proc processes WM_COMMAND, it forwards this + * message to its parent. This is done so that + * children of this control that send this message + * type to their parent will notify not only + * this control but also the parent of this control, + * which is typically the application window and + * the window that is looking for the message. + * If the control did not forward the message, + * applications would have to subclass the control + * window to see the message. Because the control + * window is subclassed by DWT, the message + * is delivered twice, once by DWT and once when + * the message is forwarded by the window proc. + * The fix is to avoid calling the window proc + * for this control. + */ + LRESULT result = super.WM_COMMAND (wParam, lParam); + if (result !is null) return result; + return LRESULT.ZERO; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + /* + * Bug in Windows. For some reason, NM_CUSTOMDRAW with + * CDDS_PREERASE and CDDS_POSTERASE is never sent for + * versions of Windows earlier than XP. The fix is to + * draw the background in WM_ERASEBKGND; + */ + if (findBackgroundControl () !is null) { + if (OS.COMCTL32_MAJOR < 6) { + drawBackground (wParam); + return LRESULT.ONE; + } + } + return result; +} + +LRESULT WM_GETDLGCODE (int wParam, int lParam) { + LRESULT result = super.WM_GETDLGCODE (wParam, lParam); + /* + * Return DLGC_BUTTON so that mnemonics will be + * processed without needing to press the ALT key + * when the widget has focus. + */ + if (result !is null) return result; + return new LRESULT (OS.DLGC_BUTTON); +} + +LRESULT WM_KEYDOWN (int wParam, int lParam) { + LRESULT result = super.WM_KEYDOWN (wParam, lParam); + if (result !is null) return result; + switch (wParam) { + case OS.VK_SPACE: + /* + * Ensure that the window proc does not process VK_SPACE + * so that it can be handled in WM_CHAR. This allows the + * application the opportunity to cancel the operation. + */ + return LRESULT.ZERO; + } + return result; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + int index = OS.SendMessage (handle, OS.TB_GETHOTITEM, 0, 0); + TBBUTTON lpButton = new TBBUTTON (); + int code = OS.SendMessage (handle, OS.TB_GETBUTTON, index, lpButton); + if (code !is 0) lastFocusId = lpButton.idCommand; + return super.WM_KILLFOCUS (wParam, lParam); +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + if (ignoreMouse) return null; + return super.WM_LBUTTONDOWN (wParam, lParam); +} + +LRESULT WM_LBUTTONUP (int wParam, int lParam) { + if (ignoreMouse) return null; + return super.WM_LBUTTONUP (wParam, lParam); +} + +LRESULT WM_MOUSELEAVE (int wParam, int lParam) { + LRESULT result = super.WM_MOUSELEAVE (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. On XP, when a tooltip is + * hidden due to a time out or mouse press, + * the tooltip remains active although no + * longer visible and won't show again until + * another tooltip becomes active. If there + * is only one tooltip in the window, it will + * never show again. The fix is to remove the + * current tooltip and add it again every time + * the mouse leaves the control. + */ + if (OS.COMCTL32_MAJOR >= 6) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + int hwndToolTip = OS.SendMessage (handle, OS.TB_GETTOOLTIPS, 0, 0); + if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, lpti) !is 0) { + if ((lpti.uFlags & OS.TTF_IDISHWND) is 0) { + OS.SendMessage (hwndToolTip, OS.TTM_DELTOOL, 0, lpti); + OS.SendMessage (hwndToolTip, OS.TTM_ADDTOOL, 0, lpti); + } + } + } + return result; +} + +LRESULT WM_NOTIFY (int wParam, int lParam) { + /* + * Feature in Windows. When the toolbar window + * proc processes WM_NOTIFY, it forwards this + * message to its parent. This is done so that + * children of this control that send this message + * type to their parent will notify not only + * this control but also the parent of this control, + * which is typically the application window and + * the window that is looking for the message. + * If the control did not forward the message, + * applications would have to subclass the control + * window to see the message. Because the control + * window is subclassed by DWT, the message + * is delivered twice, once by DWT and once when + * the message is forwarded by the window proc. + * The fix is to avoid calling the window proc + * for this control. + */ + LRESULT result = super.WM_NOTIFY (wParam, lParam); + if (result !is null) return result; + return LRESULT.ZERO; +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + LRESULT result = super.WM_SETFOCUS (wParam, lParam); + if (lastFocusId !is -1 && handle is OS.GetFocus ()) { + int index = OS.SendMessage (handle, OS.TB_COMMANDTOINDEX, lastFocusId, 0); + OS.SendMessage (handle, OS.TB_SETHOTITEM, index, 0); + } + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + if (ignoreResize) { + int code = callWindowProc (handle, OS.WM_SIZE, wParam, lParam); + if (code is 0) return LRESULT.ZERO; + return new LRESULT (code); + } + LRESULT result = super.WM_SIZE (wParam, lParam); + if (isDisposed ()) return result; + /* + * Bug in Windows. The code in Windows that determines + * when tool items should wrap seems to use the window + * bounds rather than the client area. Unfortunately, + * tool bars with the style TBSTYLE_EX_HIDECLIPPEDBUTTONS + * use the client area. This means that buttons which + * overlap the border are hidden before they are wrapped. + * The fix is to compute TBSTYLE_EX_HIDECLIPPEDBUTTONS + * and set it each time the tool bar is resized. + */ + if ((style & DWT.BORDER) !is 0 && (style & DWT.WRAP) !is 0) { + RECT windowRect = new RECT (); + OS.GetWindowRect (handle, windowRect); + int index = 0, border = getBorderWidth () * 2; + RECT rect = new RECT (); + int count = OS.SendMessage (handle, OS.TB_BUTTONCOUNT, 0, 0); + while (index < count) { + OS.SendMessage (handle, OS.TB_GETITEMRECT, index, rect); + OS.MapWindowPoints (handle, 0, rect, 2); + if (rect.right > windowRect.right - border * 2) break; + index++; + } + int bits = OS.SendMessage (handle, OS.TB_GETEXTENDEDSTYLE, 0, 0); + if (index is count) { + bits |= OS.TBSTYLE_EX_HIDECLIPPEDBUTTONS; + } else { + bits &= ~OS.TBSTYLE_EX_HIDECLIPPEDBUTTONS; + } + OS.SendMessage (handle, OS.TB_SETEXTENDEDSTYLE, 0, bits); + } + layoutItems (); + return result; +} + +LRESULT WM_WINDOWPOSCHANGING (int wParam, int lParam) { + LRESULT result = super.WM_WINDOWPOSCHANGING (wParam, lParam); + if (result !is null) return result; + if (ignoreResize) return result; + /* + * Bug in Windows. When a flat tool bar is wrapped, + * Windows draws a horizontal separator between the + * rows. The tool bar does not draw the first or + * the last two pixels of this separator. When the + * toolbar is resized to be bigger, only the new + * area is drawn and the last two pixels, which are + * blank are drawn over by separator. This leaves + * garbage on the screen. The fix is to damage the + * pixels. + */ + if (drawCount !is 0) return result; + if ((style & DWT.WRAP) is 0) return result; + if (!OS.IsWindowVisible (handle)) return result; + if (OS.SendMessage (handle, OS.TB_GETROWS, 0, 0) is 1) { + return result; + } + WINDOWPOS lpwp = new WINDOWPOS (); + OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof); + if ((lpwp.flags & (OS.SWP_NOSIZE | OS.SWP_NOREDRAW)) !is 0) { + return result; + } + RECT oldRect = new RECT (); + OS.GetClientRect (handle, oldRect); + RECT newRect = new RECT (); + OS.SetRect (newRect, 0, 0, lpwp.cx, lpwp.cy); + OS.SendMessage (handle, OS.WM_NCCALCSIZE, 0, newRect); + int oldWidth = oldRect.right - oldRect.left; + int newWidth = newRect.right - newRect.left; + if (newWidth > oldWidth) { + RECT rect = new RECT (); + int newHeight = newRect.bottom - newRect.top; + OS.SetRect (rect, oldWidth - 2, 0, oldWidth, newHeight); + OS.InvalidateRect (handle, rect, false); + } + return result; +} + +LRESULT wmCommandChild (int wParam, int lParam) { + ToolItem child = items [wParam & 0xFFFF]; + if (child is null) return null; + return child.wmCommandChild (wParam, lParam); +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + switch (hdr.code) { + case OS.TBN_DROPDOWN: + NMTOOLBAR lpnmtb = new NMTOOLBAR (); + OS.MoveMemory (lpnmtb, lParam, NMTOOLBAR.sizeof); + ToolItem child = items [lpnmtb.iItem]; + if (child !is null) { + Event event = new Event (); + event.detail = DWT.ARROW; + int index = OS.SendMessage (handle, OS.TB_COMMANDTOINDEX, lpnmtb.iItem, 0); + RECT rect = new RECT (); + OS.SendMessage (handle, OS.TB_GETITEMRECT, index, rect); + event.x = rect.left; + event.y = rect.bottom; + child.postEvent (DWT.Selection, event); + } + break; + case OS.NM_CUSTOMDRAW: + if (OS.COMCTL32_MAJOR < 6) break; + /* + * Bug in Windows. For some reason, under the XP Silver + * theme, tool bars continue to draw using the gray color + * from the default Blue theme. The fix is to draw the + * background. + */ + NMCUSTOMDRAW nmcd = new NMCUSTOMDRAW (); + OS.MoveMemory (nmcd, lParam, NMCUSTOMDRAW.sizeof); +// if (drawCount !is 0 || !OS.IsWindowVisible (handle)) { +// if (!OS.IsWinCE && OS.WindowFromDC (nmcd.hdc) is handle) break; +// } + switch (nmcd.dwDrawStage) { + case OS.CDDS_PREERASE: { + /* + * Bug in Windows. When a tool bar does not have the style + * TBSTYLE_FLAT, the rectangle to be erased in CDDS_PREERASE + * is empty. The fix is to draw the whole client area. + */ + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TBSTYLE_FLAT) is 0) { + drawBackground (nmcd.hdc); + } else { + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + drawBackground (nmcd.hdc, rect); + } + return new LRESULT (OS.CDRF_SKIPDEFAULT); + } + } + break; + case OS.TBN_HOTITEMCHANGE: + if (!OS.IsWinCE) { + NMTBHOTITEM lpnmhi = new NMTBHOTITEM (); + OS.MoveMemory (lpnmhi, lParam, NMTBHOTITEM.sizeof); + switch (lpnmhi.dwFlags) { + case OS.HICF_ARROWKEYS: + RECT client = new RECT (); + OS.GetClientRect (handle, client); + int index = OS.SendMessage (handle, OS.TB_COMMANDTOINDEX, lpnmhi.idNew, 0); + RECT rect = new RECT (); + OS.SendMessage (handle, OS.TB_GETITEMRECT, index, rect); + if (rect.right > client.right || rect.bottom > client.bottom) { + return LRESULT.ONE; + } + break; + } + } + break; + } + return super.wmNotifyChild (hdr, wParam, lParam); +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ToolItem.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,972 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.ToolItem; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class ToolItem : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Image; +import dwt.graphics.Rectangle; +import dwt.internal.ImageList; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TBBUTTONINFO; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class represent a selectable user interface object + * that represents a button in a tool bar. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>PUSH, CHECK, RADIO, SEPARATOR, DROP_DOWN</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * <p> + * Note: Only one of the styles CHECK, PUSH, RADIO, SEPARATOR and DROP_DOWN + * may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ +public class ToolItem extends Item { + ToolBar parent; + Control control; + String toolTipText; + Image disabledImage, hotImage; + Image disabledImage2; + int id; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>ToolBar</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#PUSH + * @see DWT#CHECK + * @see DWT#RADIO + * @see DWT#SEPARATOR + * @see DWT#DROP_DOWN + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ToolItem (ToolBar parent, int style) { + super (parent, checkStyle (style)); + this.parent = parent; + parent.createItem (this, parent.getItemCount ()); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>ToolBar</code>), a style value + * describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#PUSH + * @see DWT#CHECK + * @see DWT#RADIO + * @see DWT#SEPARATOR + * @see DWT#DROP_DOWN + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ToolItem (ToolBar parent, int style, int index) { + super (parent, checkStyle (style)); + this.parent = parent; + parent.createItem (this, index); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called when the mouse is over the arrow portion of a drop-down tool, + * the event object detail field contains the value <code>DWT.ARROW</code>. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the control is selected by the user, + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +static int checkStyle (int style) { + return checkBits (style, DWT.PUSH, DWT.CHECK, DWT.RADIO, DWT.SEPARATOR, DWT.DROP_DOWN, 0); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +void click (bool dropDown) { + int hwnd = parent.handle; + if (OS.GetKeyState (OS.VK_LBUTTON) < 0) return; + int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); + RECT rect = new RECT (); + OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); + int hotIndex = OS.SendMessage (hwnd, OS.TB_GETHOTITEM, 0, 0); + + /* + * In order to emulate all the processing that + * happens when a mnemonic key is pressed, fake + * a mouse press and release. This will ensure + * that radio and pull down items are handled + * properly. + */ + int y = rect.top + (rect.bottom - rect.top) / 2; + int lParam = ((dropDown ? rect.right - 1 : rect.left) & 0xFFFF) | ((y << 16) & 0xFFFF0000); + parent.ignoreMouse = true; + OS.SendMessage (hwnd, OS.WM_LBUTTONDOWN, 0, lParam); + OS.SendMessage (hwnd, OS.WM_LBUTTONUP, 0, lParam); + parent.ignoreMouse = false; + + if (hotIndex !is -1) { + OS.SendMessage (hwnd, OS.TB_SETHOTITEM, hotIndex, 0); + } +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent. + * + * @return the receiver's bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Rectangle getBounds () { + checkWidget(); + int hwnd = parent.handle; + int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); + RECT rect = new RECT (); + OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +/** + * Returns the control that is used to fill the bounds of + * the item when the item is a <code>SEPARATOR</code>. + * + * @return the control + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Control getControl () { + checkWidget(); + return control; +} + +/** + * Returns the receiver's disabled image if it has one, or null + * if it does not. + * <p> + * The disabled image is displayed when the receiver is disabled. + * </p> + * + * @return the receiver's disabled image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Image getDisabledImage () { + checkWidget(); + return disabledImage; +} + +/** + * Returns <code>true</code> if the receiver is enabled, and + * <code>false</code> otherwise. A disabled control is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #isEnabled + */ +public bool getEnabled () { + checkWidget(); + if ((style & DWT.SEPARATOR) !is 0) { + return (state & DISABLED) is 0; + } + int hwnd = parent.handle; + int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); + return (fsState & OS.TBSTATE_ENABLED) !is 0; +} + +/** + * Returns the receiver's hot image if it has one, or null + * if it does not. + * <p> + * The hot image is displayed when the mouse enters the receiver. + * </p> + * + * @return the receiver's hot image + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Image getHotImage () { + checkWidget(); + return hotImage; +} + +/** + * Returns the receiver's parent, which must be a <code>ToolBar</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public ToolBar getParent () { + checkWidget(); + return parent; +} + +/** + * Returns <code>true</code> if the receiver is selected, + * and false otherwise. + * <p> + * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, + * it is selected when it is checked (which some platforms draw as a + * pushed in button). If the receiver is of any other type, this method + * returns false. + * </p> + * + * @return the selection state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getSelection () { + checkWidget(); + if ((style & (DWT.CHECK | DWT.RADIO)) is 0) return false; + int hwnd = parent.handle; + int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); + return (fsState & OS.TBSTATE_CHECKED) !is 0; +} + +/** + * Returns the receiver's tool tip text, or null if it has not been set. + * + * @return the receiver's tool tip text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getToolTipText () { + checkWidget(); + return toolTipText; +} + +/** + * Gets the width of the receiver. + * + * @return the width + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getWidth () { + checkWidget(); + int hwnd = parent.handle; + int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); + RECT rect = new RECT (); + OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); + return rect.right - rect.left; +} + +/** + * Returns <code>true</code> if the receiver is enabled and all + * of the receiver's ancestors are enabled, and <code>false</code> + * otherwise. A disabled control is typically not selectable from the + * user interface and draws with an inactive or "grayed" look. + * + * @return the receiver's enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getEnabled + */ +public bool isEnabled () { + checkWidget(); + return getEnabled () && parent.isEnabled (); +} + +void releaseWidget () { + super.releaseWidget (); + releaseImages (); + control = null; + toolTipText = null; + disabledImage = hotImage = null; + if (disabledImage2 !is null) disabledImage2.dispose (); + disabledImage2 = null; +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; + id = -1; +} + +void releaseImages () { + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_IMAGE | OS.TBIF_STYLE; + int hwnd = parent.handle; + OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info); + /* + * Feature in Windows. For some reason, a tool item that has + * the style BTNS_SEP does not return I_IMAGENONE when queried + * for an image index, despite the fact that no attempt has been + * made to assign an image to the item. As a result, operations + * on an image list that use the wrong index cause random results. + * The fix is to ensure that the tool item is not a separator + * before using the image index. Since separators cannot have + * an image and one is never assigned, this is not a problem. + */ + if ((info.fsStyle & OS.BTNS_SEP) is 0 && info.iImage !is OS.I_IMAGENONE) { + ImageList imageList = parent.getImageList (); + ImageList hotImageList = parent.getHotImageList (); + ImageList disabledImageList = parent.getDisabledImageList(); + if (imageList !is null) imageList.put (info.iImage, null); + if (hotImageList !is null) hotImageList.put (info.iImage, null); + if (disabledImageList !is null) disabledImageList.put (info.iImage, null); + } +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +void resizeControl () { + if (control !is null && !control.isDisposed ()) { + /* + * Set the size and location of the control + * separately to minimize flashing in the + * case where the control does not resize + * to the size that was requested. This + * case can occur when the control is a + * combo box. + */ + Rectangle itemRect = getBounds (); + control.setSize (itemRect.width, itemRect.height); + Rectangle rect = control.getBounds (); + rect.x = itemRect.x + (itemRect.width - rect.width) / 2; + rect.y = itemRect.y + (itemRect.height - rect.height) / 2; + control.setLocation (rect.x, rect.y); + } +} + +void selectRadio () { + int index = 0; + ToolItem [] items = parent.getItems (); + while (index < items.length && items [index] !is this) index++; + int i = index - 1; + while (i >= 0 && items [i].setRadioSelection (false)) --i; + int j = index + 1; + while (j < items.length && items [j].setRadioSelection (false)) j++; + setSelection (true); +} + +/** + * Sets the control that is used to fill the bounds of + * the item when the item is a <code>SEPARATOR</code>. + * + * @param control the new control + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> + * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setControl (Control control) { + checkWidget(); + if (control !is null) { + if (control.isDisposed()) error (DWT.ERROR_INVALID_ARGUMENT); + if (control.parent !is parent) error (DWT.ERROR_INVALID_PARENT); + } + if ((style & DWT.SEPARATOR) is 0) return; + this.control = control; + /* + * Feature in Windows. When a tool bar wraps, tool items + * with the style BTNS_SEP are used as wrap points. This + * means that controls that are placed on top of separator + * items are not positioned properly. Also, vertical tool + * bars are implemented using TB_SETROWS to set the number + * of rows. When a control is placed on top of a separator, + * the height of the separator does not grow. The fix in + * both cases is to change the tool item style from BTNS_SEP + * to BTNS_BUTTON, causing the item to wrap like a tool item + * button. The new tool item button is disabled to avoid key + * traversal and the image is set to I_IMAGENONE to avoid + * getting the first image from the image list. + */ + if ((parent.style & (DWT.WRAP | DWT.VERTICAL)) !is 0) { + bool changed = false; + int hwnd = parent.handle; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_STYLE | OS.TBIF_STATE; + OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info); + if (control is null) { + if ((info.fsStyle & OS.BTNS_SEP) is 0) { + changed = true; + info.fsStyle &= ~OS.BTNS_BUTTON; + info.fsStyle |= OS.BTNS_SEP; + if ((state & DISABLED) !is 0) { + info.fsState &= ~OS.TBSTATE_ENABLED; + } else { + info.fsState |= OS.TBSTATE_ENABLED; + } + } + } else { + if ((info.fsStyle & OS.BTNS_SEP) !is 0) { + changed = true; + info.fsStyle &= ~OS.BTNS_SEP; + info.fsStyle |= OS.BTNS_BUTTON; + info.fsState &= ~OS.TBSTATE_ENABLED; + info.dwMask |= OS.TBIF_IMAGE; + info.iImage = OS.I_IMAGENONE; + } + } + if (changed) { + OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); + /* + * Bug in Windows. When TB_SETBUTTONINFO changes the + * style of a tool item from BTNS_SEP to BTNS_BUTTON + * and the tool bar is wrapped, the tool bar does not + * redraw properly. Windows uses separator items as + * wrap points and sometimes draws etching above or + * below and entire row. The fix is to redraw the + * tool bar. + */ + if (OS.SendMessage (hwnd, OS.TB_GETROWS, 0, 0) > 1) { + OS.InvalidateRect (hwnd, null, true); + } + } + } + resizeControl (); +} + +/** + * Enables the receiver if the argument is <code>true</code>, + * and disables it otherwise. + * <p> + * A disabled control is typically + * not selectable from the user interface and draws with an + * inactive or "grayed" look. + * </p> + * + * @param enabled the new enabled state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setEnabled (bool enabled) { + checkWidget(); + int hwnd = parent.handle; + int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); + /* + * Feature in Windows. When TB_SETSTATE is used to set the + * state of a tool item, the item redraws even when the state + * has not changed. The fix is to detect this case and avoid + * setting the state. + */ + if (((fsState & OS.TBSTATE_ENABLED) !is 0) is enabled) return; + if (enabled) { + fsState |= OS.TBSTATE_ENABLED; + state &= ~DISABLED; + } else { + fsState &= ~OS.TBSTATE_ENABLED; + state |= DISABLED; + } + OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState); + if ((style & DWT.SEPARATOR) is 0) { + if (image !is null) updateImages (enabled && parent.getEnabled ()); + } +} + +/** + * Sets the receiver's disabled image to the argument, which may be + * null indicating that no disabled image should be displayed. + * <p> + * The disabled image is displayed when the receiver is disabled. + * </p> + * + * @param image the disabled image to display on the receiver (may be null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setDisabledImage (Image image) { + checkWidget(); + if ((style & DWT.SEPARATOR) !is 0) return; + if (image !is null && image.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + disabledImage = image; + updateImages (getEnabled () && parent.getEnabled ()); +} + +/** + * Sets the receiver's hot image to the argument, which may be + * null indicating that no hot image should be displayed. + * <p> + * The hot image is displayed when the mouse enters the receiver. + * </p> + * + * @param image the hot image to display on the receiver (may be null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setHotImage (Image image) { + checkWidget(); + if ((style & DWT.SEPARATOR) !is 0) return; + if (image !is null && image.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + hotImage = image; + updateImages (getEnabled () && parent.getEnabled ()); +} + +public void setImage (Image image) { + checkWidget(); + if ((style & DWT.SEPARATOR) !is 0) return; + if (image !is null && image.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + super.setImage (image); + updateImages (getEnabled () && parent.getEnabled ()); +} + +bool setRadioSelection (bool value) { + if ((style & DWT.RADIO) is 0) return false; + if (getSelection () !is value) { + setSelection (value); + postEvent (DWT.Selection); + } + return true; +} + +/** + * Sets the selection state of the receiver. + * <p> + * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, + * it is selected when it is checked (which some platforms draw as a + * pushed in button). + * </p> + * + * @param selected the new selection state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (bool selected) { + checkWidget(); + if ((style & (DWT.CHECK | DWT.RADIO)) is 0) return; + int hwnd = parent.handle; + int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); + /* + * Feature in Windows. When TB_SETSTATE is used to set the + * state of a tool item, the item redraws even when the state + * has not changed. The fix is to detect this case and avoid + * setting the state. + */ + if (((fsState & OS.TBSTATE_CHECKED) !is 0) is selected) return; + if (selected) { + fsState |= OS.TBSTATE_CHECKED; + } else { + fsState &= ~OS.TBSTATE_CHECKED; + } + OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState); + + /* + * Bug in Windows. When a tool item with the style + * BTNS_CHECK or BTNS_CHECKGROUP is selected and then + * disabled, the item does not draw using the disabled + * image. The fix is to use the disabled image in all + * image lists for the item. + * + * NOTE: This means that the image list must be updated + * when the selection changes in a disabled tool item. + */ + if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { + if (!getEnabled () || !parent.getEnabled ()) { + updateImages (false); + } + } +} + +/** + * Sets the receiver's text. The string may include + * the mnemonic character. + * </p> + * <p> + * Mnemonics are indicated by an '&' that causes the next + * character to be the mnemonic. When the user presses a + * key sequence that matches the mnemonic, a selection + * event occurs. On most platforms, the mnemonic appears + * underlined but may be emphasised in a platform specific + * manner. The mnemonic indicator character '&' can be + * escaped by doubling it in the string, causing a single + * '&' to be displayed. + * </p> + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget(); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if ((style & DWT.SEPARATOR) !is 0) return; + if (string.equals (text)) return; + super.setText (string); + int hwnd = parent.handle; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_TEXT | OS.TBIF_STYLE; + info.fsStyle = (byte) (widgetStyle () | OS.BTNS_AUTOSIZE); + int hHeap = OS.GetProcessHeap (), pszText = 0; + if (string.length () !is 0) { + info.fsStyle |= OS.BTNS_SHOWTEXT; + TCHAR buffer = new TCHAR (parent.getCodePage (), string, true); + int byteCount = buffer.length () * TCHAR.sizeof; + pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + info.pszText = pszText; + } + OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + + /* + * Bug in Windows. For some reason, when the font is set + * before any tool item has text, the tool items resize to + * a very small size. Also, a tool item will only show text + * when text has already been set on one item and then a new + * item is created. The fix is to use WM_SETFONT to force + * the tool bar to redraw and layout. + */ + parent.setDropDownItems (false); + int hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); + OS.SendMessage (hwnd, OS.WM_SETFONT, hFont, 0); + parent.setDropDownItems (true); + parent.layoutItems (); +} + +/** + * Sets the receiver's tool tip text to the argument, which + * may be null indicating that no tool tip text should be shown. + * + * @param string the new tool tip text (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setToolTipText (String string) { + checkWidget(); + toolTipText = string; +} + +/** + * Sets the width of the receiver, for <code>SEPARATOR</code> ToolItems. + * + * @param width the new width + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setWidth (int width) { + checkWidget(); + if ((style & DWT.SEPARATOR) is 0) return; + if (width < 0) return; + int hwnd = parent.handle; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_SIZE; + info.cx = (short) width; + OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); + parent.layoutItems (); +} + +void updateImages (bool enabled) { + if ((style & DWT.SEPARATOR) !is 0) return; + int hwnd = parent.handle; + TBBUTTONINFO info = new TBBUTTONINFO (); + info.cbSize = TBBUTTONINFO.sizeof; + info.dwMask = OS.TBIF_IMAGE; + OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info); + if (info.iImage is OS.I_IMAGENONE && image is null) return; + ImageList imageList = parent.getImageList (); + ImageList hotImageList = parent.getHotImageList (); + ImageList disabledImageList = parent.getDisabledImageList(); + if (info.iImage is OS.I_IMAGENONE) { + Rectangle bounds = image.getBounds (); + int listStyle = parent.style & DWT.RIGHT_TO_LEFT; + if (imageList is null) { + imageList = display.getImageListToolBar (listStyle, bounds.width, bounds.height); + } + if (disabledImageList is null) { + disabledImageList = display.getImageListToolBarDisabled (listStyle, bounds.width, bounds.height); + } + if (hotImageList is null) { + hotImageList = display.getImageListToolBarHot (listStyle, bounds.width, bounds.height); + } + Image disabled = disabledImage; + if (disabledImage is null) { + if (disabledImage2 !is null) disabledImage2.dispose (); + disabledImage2 = null; + disabled = image; + if (!enabled) { + disabled = disabledImage2 = new Image (display, image, DWT.IMAGE_DISABLE); + } + } + /* + * Bug in Windows. When a tool item with the style + * BTNS_CHECK or BTNS_CHECKGROUP is selected and then + * disabled, the item does not draw using the disabled + * image. The fix is to assign the disabled image in + * all image lists. + */ + Image image2 = image, hot = hotImage; + if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { + if (!enabled) image2 = hot = disabled; + } + info.iImage = imageList.add (image2); + disabledImageList.add (disabled); + hotImageList.add (hot !is null ? hot : image2); + parent.setImageList (imageList); + parent.setDisabledImageList (disabledImageList); + parent.setHotImageList (hotImageList); + } else { + Image disabled = null; + if (disabledImageList !is null) { + if (image !is null) { + if (disabledImage2 !is null) disabledImage2.dispose (); + disabledImage2 = null; + disabled = disabledImage; + if (disabledImage is null) { + disabled = image; + if (!enabled) { + disabled = disabledImage2 = new Image (display, image, DWT.IMAGE_DISABLE); + } + } + } + disabledImageList.put (info.iImage, disabled); + } + /* + * Bug in Windows. When a tool item with the style + * BTNS_CHECK or BTNS_CHECKGROUP is selected and then + * disabled, the item does not draw using the disabled + * image. The fix is to use the disabled image in all + * image lists. + */ + Image image2 = image, hot = hotImage; + if ((style & (DWT.CHECK | DWT.RADIO)) !is 0) { + if (!enabled) image2 = hot = disabled; + } + if (imageList !is null) imageList.put (info.iImage, image2); + if (hotImageList !is null) { + hotImageList.put (info.iImage, hot !is null ? hot : image2); + } + if (image is null) info.iImage = OS.I_IMAGENONE; + } + + /* + * Bug in Windows. If the width of an item has already been + * calculated, the tool bar control will not recalculate it to + * include the space for the image. The fix is to set the width + * to zero, forcing the control recalculate the width for the item. + */ + info.dwMask |= OS.TBIF_SIZE; + info.cx = 0; + OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); + + parent.layoutItems (); +} + +int widgetStyle () { + if ((style & DWT.DROP_DOWN) !is 0) return OS.BTNS_DROPDOWN; + if ((style & DWT.PUSH) !is 0) return OS.BTNS_BUTTON; + if ((style & DWT.CHECK) !is 0) return OS.BTNS_CHECK; + /* + * This code is intentionally commented. In order to + * consistently support radio tool items across platforms, + * the platform radio behavior is not used. + */ +// if ((style & DWT.RADIO) !is 0) return OS.BTNS_CHECKGROUP; + if ((style & DWT.RADIO) !is 0) return OS.BTNS_CHECK; + if ((style & DWT.SEPARATOR) !is 0) return OS.BTNS_SEP; + return OS.BTNS_BUTTON; +} + +LRESULT wmCommandChild (int wParam, int lParam) { + if ((style & DWT.RADIO) !is 0) { + if ((parent.getStyle () & DWT.NO_RADIO_GROUP) is 0) { + selectRadio (); + } + } + postEvent (DWT.Selection); + return null; +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/ToolTip.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,565 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.ToolTip; + +import dwt.widgets.Widget; +class ToolTip : Widget { + this( Widget, int ); +} +/++ + +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Point; +import dwt.internal.win32.MONITORINFO; +import dwt.internal.win32.NOTIFYICONDATA; +import dwt.internal.win32.NOTIFYICONDATAA; +import dwt.internal.win32.NOTIFYICONDATAW; +import dwt.internal.win32.OS; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TOOLINFO; + +/** + * Instances of this class represent popup windows that are used + * to inform or warn the user. + * <p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>BALLOON, ICON_ERROR, ICON_INFORMATION, ICON_WARNING</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection</dd> + * </dl> + * </p><p> + * Note: Only one of the styles ICON_ERROR, ICON_INFORMATION, + * and ICON_WARNING may be specified. + * </p><p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. + * </p> + * + * @since 3.2 + */ + +public class ToolTip extends Widget { + Shell parent; + TrayItem item; + String text = "", message = ""; + int id, x, y; + bool autoHide = true, hasLocation, visible; + static final int TIMER_ID = 100; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#ICON_ERROR + * @see DWT#ICON_INFORMATION + * @see DWT#ICON_WARNING + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public ToolTip (Shell parent, int style) { + super (parent, checkStyle (style)); + this.parent = parent; + checkOrientation (parent); + parent.createToolTip (this); +} + +static int checkStyle (int style) { + int mask = DWT.ICON_ERROR | DWT.ICON_INFORMATION | DWT.ICON_WARNING; + if ((style & mask) is 0) return style; + return checkBits (style, DWT.ICON_INFORMATION, DWT.ICON_WARNING, DWT.ICON_ERROR, 0, 0, 0); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the receiver is selected. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the receiver is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener(listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +void destroyWidget () { + if (parent !is null) parent.destroyToolTip (this); + releaseHandle (); +} + +/** + * Returns <code>true</code> if the receiver is automatically + * hidden by the platform, and <code>false</code> otherwise. + * + * @return the receiver's auto hide state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + */ +public bool getAutoHide () { + checkWidget(); + return autoHide; +} + +/** + * Returns the receiver's message, which will be an empty + * string if it has never been set. + * + * @return the receiver's message + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getMessage () { + checkWidget(); + return message; +} + +/** + * Returns the receiver's parent, which must be a <code>Shell</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Shell getParent () { + checkWidget (); + return parent; +} + +/** + * Returns the receiver's text, which will be an empty + * string if it has never been set. + * + * @return the receiver's text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getText () { + checkWidget(); + return text; +} + +/** + * Returns <code>true</code> if the receiver is visible, and + * <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getVisible () { + checkWidget(); + if (OS.IsWinCE) return false; + if (item !is null) return visible; + int hwndToolTip = hwndToolTip (); + if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, 0) !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, lpti) !is 0) { + return (lpti.uFlags & OS.TTF_IDISHWND) is 0 && lpti.uId is id; + } + } + return false; +} + +int hwndToolTip () { + return (style & DWT.BALLOON) !is 0 ? parent.balloonTipHandle () : parent.toolTipHandle (); +} + +/** + * Returns <code>true</code> if the receiver is visible and all + * of the receiver's ancestors are visible and <code>false</code> + * otherwise. + * + * @return the receiver's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getVisible + */ +public bool isVisible () { + checkWidget (); + if (item !is null) return getVisible () && item.getVisible (); + return getVisible (); +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; + item = null; + id = -1; +} + +void releaseWidget () { + super.releaseWidget (); + if (item is null) { + if (autoHide) { + int hwndToolTip = hwndToolTip (); + if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, 0) !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, lpti) !is 0) { + if ((lpti.uFlags & OS.TTF_IDISHWND) is 0) { + if (lpti.uId is id) { + OS.SendMessage (hwndToolTip, OS.TTM_TRACKACTIVATE, 0, lpti); + OS.SendMessage (hwndToolTip, OS.TTM_POP, 0, 0); + OS.KillTimer (hwndToolTip, TIMER_ID); + } + } + } + } + } + } + if (item !is null && item.toolTip is this) { + item.toolTip = null; + } + item = null; + text = message = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the receiver is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Makes the receiver hide automatically when <code>true</code>, + * and remain visible when <code>false</code>. + * + * @param autoHide the auto hide state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getVisible + * @see #setVisible + */ +public void setAutoHide (bool autoHide) { + checkWidget (); + this.autoHide = autoHide; + //TODO - update when visible +} + +/** + * Sets the location of the receiver, which must be a tooltip, + * to the point specified by the arguments which are relative + * to the display. + * <p> + * Note that this is different from most widgets where the + * location of the widget is relative to the parent. + * </p> + * + * @param x the new x coordinate for the receiver + * @param y the new y coordinate for the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLocation (int x, int y) { + checkWidget (); + this.x = x; + this.y = y; + hasLocation = true; + //TODO - update when visible +} + +/** + * Sets the location of the receiver, which must be a tooltip, + * to the point specified by the argument which is relative + * to the display. + * <p> + * Note that this is different from most widgets where the + * location of the widget is relative to the parent. + * </p><p> + * Note that the platform window manager ultimately has control + * over the location of tooltips. + * </p> + * + * @param location the new location for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setLocation (Point location) { + checkWidget (); + if (location is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + setLocation (location.x, location.y); +} + +/** + * Sets the receiver's message. + * + * @param string the new message + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setMessage (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + message = string; + //TODO - update when visible +} + +/** + * Sets the receiver's text. + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + text = string; + //TODO - update when visible +} + +/** + * Marks the receiver as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param visible the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setVisible (bool visible) { + checkWidget (); + if (OS.IsWinCE) return; + if (visible is getVisible ()) return; + if (item is null) { + int hwnd = parent.handle; + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.uId = id; + lpti.hwnd = hwnd; + int hwndToolTip = hwndToolTip (); + Shell shell = parent.getShell (); + if (text.length () !is 0) { + int icon = OS.TTI_NONE; + if ((style & DWT.ICON_INFORMATION) !is 0) icon = OS.TTI_INFO; + if ((style & DWT.ICON_WARNING) !is 0) icon = OS.TTI_WARNING; + if ((style & DWT.ICON_ERROR) !is 0) icon = OS.TTI_ERROR; + shell.setToolTipTitle (hwndToolTip, text, icon); + } else { + shell.setToolTipTitle (hwndToolTip, null, 0); + } + int maxWidth = 0; + if (OS.IsWinCE || OS.WIN32_VERSION < OS.VERSION (4, 10)) { + RECT rect = new RECT (); + OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0); + maxWidth = (rect.right - rect.left) / 4; + } else { + int hmonitor = OS.MonitorFromWindow (hwnd, OS.MONITOR_DEFAULTTONEAREST); + MONITORINFO lpmi = new MONITORINFO (); + lpmi.cbSize = MONITORINFO.sizeof; + OS.GetMonitorInfo (hmonitor, lpmi); + maxWidth = (lpmi.rcWork_right - lpmi.rcWork_left) / 4; + } + OS.SendMessage (hwndToolTip, OS.TTM_SETMAXTIPWIDTH, 0, maxWidth); + if (visible) { + int nX = x, nY = y; + if (!hasLocation) { + POINT pt = new POINT (); + if (OS.GetCursorPos (pt)) { + nX = pt.x; + nY = pt.y; + } + } + int lParam = (nX & 0xFFFF) | ((nY << 16) & 0xFFFF0000); + OS.SendMessage (hwndToolTip, OS.TTM_TRACKPOSITION, 0, lParam); + + /* + * Feature in Windows. Windows will not show a tool tip + * if the cursor is outside the parent window (even on XP, + * TTM_POPUP will not do this). The fix is to temporarily + * move the cursor into the tool window, show the tool tip, + * and then restore the cursor. + */ + POINT pt = new POINT (); + OS.GetCursorPos (pt); + RECT rect = new RECT (); + OS.GetClientRect (hwnd, rect); + OS.MapWindowPoints (hwnd, 0, rect, 2); + if (!OS.PtInRect (rect, pt)) { + int hCursor = OS.GetCursor (); + OS.SetCursor (0); + OS.SetCursorPos (rect.left, rect.top); + OS.SendMessage (hwndToolTip, OS.TTM_TRACKACTIVATE, 1, lpti); + OS.SetCursorPos (pt.x, pt.y); + OS.SetCursor (hCursor); + } else { + OS.SendMessage (hwndToolTip, OS.TTM_TRACKACTIVATE, 1, lpti); + } + + int time = OS.SendMessage (hwndToolTip, OS.TTM_GETDELAYTIME, OS.TTDT_AUTOPOP, 0); + OS.SetTimer (hwndToolTip, TIMER_ID, time, 0); + } else { + OS.SendMessage (hwndToolTip, OS.TTM_TRACKACTIVATE, 0, lpti); + OS.SendMessage (hwndToolTip, OS.TTM_POP, 0, 0); + OS.KillTimer (hwndToolTip, TIMER_ID); + } + return; + } + if (item !is null && OS.SHELL32_MAJOR >= 5) { + if (visible) { + NOTIFYICONDATA iconData = OS.IsUnicode ? (NOTIFYICONDATA) new NOTIFYICONDATAW () : new NOTIFYICONDATAA (); + TCHAR buffer1 = new TCHAR (0, text, true); + TCHAR buffer2 = new TCHAR (0, message, true); + if (OS.IsUnicode) { + char [] szInfoTitle = ((NOTIFYICONDATAW) iconData).szInfoTitle; + int length1 = Math.min (szInfoTitle.length - 1, buffer1.length ()); + System.arraycopy (buffer1.chars, 0, szInfoTitle, 0, length1); + char [] szInfo = ((NOTIFYICONDATAW) iconData).szInfo; + int length2 = Math.min (szInfo.length - 1, buffer2.length ()); + System.arraycopy (buffer2.chars, 0, szInfo, 0, length2); + } else { + byte [] szInfoTitle = ((NOTIFYICONDATAA) iconData).szInfoTitle; + int length = Math.min (szInfoTitle.length - 1, buffer1.length ()); + System.arraycopy (buffer1.bytes, 0, szInfoTitle, 0, length); + byte [] szInfo = ((NOTIFYICONDATAA) iconData).szInfo; + int length2 = Math.min (szInfo.length - 1, buffer2.length ()); + System.arraycopy (buffer2.bytes, 0, szInfo, 0, length2); + } + Display display = item.getDisplay (); + iconData.cbSize = NOTIFYICONDATA.sizeof; + iconData.uID = item.id; + iconData.hWnd = display.hwndMessage; + iconData.uFlags = OS.NIF_INFO; + if ((style & DWT.ICON_INFORMATION) !is 0) iconData.dwInfoFlags = OS.NIIF_INFO; + if ((style & DWT.ICON_WARNING) !is 0) iconData.dwInfoFlags = OS.NIIF_WARNING; + if ((style & DWT.ICON_ERROR) !is 0) iconData.dwInfoFlags = OS.NIIF_ERROR; + sendEvent (DWT.Show); + this.visible = OS.Shell_NotifyIcon (OS.NIM_MODIFY, iconData); + } else { + //TODO - hide the tray item + } + } +} +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Tracker.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1173 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Tracker; + +import dwt.widgets.Widget; +class Tracker : Widget { + this( Widget, int ); +} +/++ + +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ControlListener; +import dwt.events.KeyListener; +import dwt.graphics.Cursor; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.Callback; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MSG; +import dwt.internal.win32.OS; +import dwt.internal.win32.PAINTSTRUCT; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; + +/** + * Instances of this class implement rubber banding rectangles that are + * drawn onto a parent <code>Composite</code> or <code>Display</code>. + * These rectangles can be specified to respond to mouse and key events + * by either moving or resizing themselves accordingly. Trackers are + * typically used to represent window geometries in a lightweight manner. + * + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>LEFT, RIGHT, UP, DOWN, RESIZE</dd> + * <dt><b>Events:</b></dt> + * <dd>Move, Resize</dd> + * </dl> + * <p> + * Note: Rectangle move behavior is assumed unless RESIZE is specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ +public class Tracker extends Widget { + Control parent; + bool tracking, cancelled, stippled; + Rectangle [] rectangles = new Rectangle [0], proportions = rectangles; + Rectangle bounds; + int resizeCursor, clientCursor, cursorOrientation = DWT.NONE; + bool inEvent = false; + int hwndTransparent, oldProc, oldX, oldY; + + /* + * The following values mirror step sizes on Windows + */ + final static int STEPSIZE_SMALL = 1; + final static int STEPSIZE_LARGE = 9; + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a widget which will be the parent of the new instance (cannot be null) + * @param style the style of widget to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#UP + * @see DWT#DOWN + * @see DWT#RESIZE + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Tracker (Composite parent, int style) { + super (parent, checkStyle (style)); + this.parent = parent; +} + +/** + * Constructs a new instance of this class given the display + * to create it on and a style value describing its behavior + * and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p><p> + * Note: Currently, null can be passed in for the display argument. + * This has the effect of creating the tracker on the currently active + * display if there is one. If there is no current display, the + * tracker is created on a "default" display. <b>Passing in null as + * the display argument is not considered to be good coding style, + * and may not be supported in a future release of DWT.</b> + * </p> + * + * @param display the display to create the tracker on + * @param style the style of control to construct + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#UP + * @see DWT#DOWN + */ +public Tracker (Display display, int style) { + if (display is null) display = Display.getCurrent (); + if (display is null) display = Display.getDefault (); + if (!display.isValidThread ()) { + error (DWT.ERROR_THREAD_INVALID_ACCESS); + } + this.style = checkStyle (style); + this.display = display; +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is moved or resized, by sending + * it one of the messages defined in the <code>ControlListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ControlListener + * @see #removeControlListener + */ +public void addControlListener (ControlListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Resize, typedListener); + addListener (DWT.Move, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when keys are pressed and released on the system keyboard, by sending + * it one of the messages defined in the <code>KeyListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see KeyListener + * @see #removeKeyListener + */ +public void addKeyListener (KeyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.KeyUp,typedListener); + addListener (DWT.KeyDown,typedListener); +} + +Point adjustMoveCursor () { + if (bounds is null) return null; + int newX = bounds.x + bounds.width / 2; + int newY = bounds.y; + POINT pt = new POINT (); + pt.x = newX; pt.y = newY; + /* + * Convert to screen coordinates iff needed + */ + if (parent !is null) { + OS.ClientToScreen (parent.handle, pt); + } + OS.SetCursorPos (pt.x, pt.y); + return new Point (pt.x, pt.y); +} + +Point adjustResizeCursor () { + if (bounds is null) return null; + int newX, newY; + + if ((cursorOrientation & DWT.LEFT) !is 0) { + newX = bounds.x; + } else if ((cursorOrientation & DWT.RIGHT) !is 0) { + newX = bounds.x + bounds.width; + } else { + newX = bounds.x + bounds.width / 2; + } + + if ((cursorOrientation & DWT.UP) !is 0) { + newY = bounds.y; + } else if ((cursorOrientation & DWT.DOWN) !is 0) { + newY = bounds.y + bounds.height; + } else { + newY = bounds.y + bounds.height / 2; + } + + POINT pt = new POINT (); + pt.x = newX; pt.y = newY; + /* + * Convert to screen coordinates iff needed + */ + if (parent !is null) { + OS.ClientToScreen (parent.handle, pt); + } + OS.SetCursorPos (pt.x, pt.y); + + /* + * If the client has not provided a custom cursor then determine + * the appropriate resize cursor. + */ + if (clientCursor is 0) { + int newCursor = 0; + switch (cursorOrientation) { + case DWT.UP: + newCursor = OS.LoadCursor (0, OS.IDC_SIZENS); + break; + case DWT.DOWN: + newCursor = OS.LoadCursor (0, OS.IDC_SIZENS); + break; + case DWT.LEFT: + newCursor = OS.LoadCursor (0, OS.IDC_SIZEWE); + break; + case DWT.RIGHT: + newCursor = OS.LoadCursor (0, OS.IDC_SIZEWE); + break; + case DWT.LEFT | DWT.UP: + newCursor = OS.LoadCursor (0, OS.IDC_SIZENWSE); + break; + case DWT.RIGHT | DWT.DOWN: + newCursor = OS.LoadCursor (0, OS.IDC_SIZENWSE); + break; + case DWT.LEFT | DWT.DOWN: + newCursor = OS.LoadCursor (0, OS.IDC_SIZENESW); + break; + case DWT.RIGHT | DWT.UP: + newCursor = OS.LoadCursor (0, OS.IDC_SIZENESW); + break; + default: + newCursor = OS.LoadCursor (0, OS.IDC_SIZEALL); + break; + } + OS.SetCursor (newCursor); + if (resizeCursor !is 0) { + OS.DestroyCursor (resizeCursor); + } + resizeCursor = newCursor; + } + + return new Point (pt.x, pt.y); +} + +static int checkStyle (int style) { + if ((style & (DWT.LEFT | DWT.RIGHT | DWT.UP | DWT.DOWN)) is 0) { + style |= DWT.LEFT | DWT.RIGHT | DWT.UP | DWT.DOWN; + } + return style; +} + +/** + * Stops displaying the tracker rectangles. Note that this is not considered + * to be a cancelation by the user. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void close () { + checkWidget (); + tracking = false; +} + +Rectangle computeBounds () { + if (rectangles.length is 0) return null; + int xMin = rectangles [0].x; + int yMin = rectangles [0].y; + int xMax = rectangles [0].x + rectangles [0].width; + int yMax = rectangles [0].y + rectangles [0].height; + + for (int i = 1; i < rectangles.length; i++) { + if (rectangles [i].x < xMin) xMin = rectangles [i].x; + if (rectangles [i].y < yMin) yMin = rectangles [i].y; + int rectRight = rectangles [i].x + rectangles [i].width; + if (rectRight > xMax) xMax = rectRight; + int rectBottom = rectangles [i].y + rectangles [i].height; + if (rectBottom > yMax) yMax = rectBottom; + } + + return new Rectangle (xMin, yMin, xMax - xMin, yMax - yMin); +} + +Rectangle [] computeProportions (Rectangle [] rects) { + Rectangle [] result = new Rectangle [rects.length]; + bounds = computeBounds (); + if (bounds !is null) { + for (int i = 0; i < rects.length; i++) { + int x = 0, y = 0, width = 0, height = 0; + if (bounds.width !is 0) { + x = (rects [i].x - bounds.x) * 100 / bounds.width; + width = rects [i].width * 100 / bounds.width; + } else { + width = 100; + } + if (bounds.height !is 0) { + y = (rects [i].y - bounds.y) * 100 / bounds.height; + height = rects [i].height * 100 / bounds.height; + } else { + height = 100; + } + result [i] = new Rectangle (x, y, width, height); + } + } + return result; +} + +/** + * Draw the rectangles displayed by the tracker. + */ +void drawRectangles (Rectangle [] rects, bool stippled) { + if (parent is null && !OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + RECT rect1 = new RECT(); + int bandWidth = stippled ? 3 : 1; + for (int i = 0; i < rects.length; i++) { + Rectangle rect = rects[i]; + rect1.left = rect.x - bandWidth; + rect1.top = rect.y - bandWidth; + rect1.right = rect.x + rect.width + bandWidth * 2; + rect1.bottom = rect.y + rect.height + bandWidth * 2; + OS.RedrawWindow (hwndTransparent, rect1, 0, OS.RDW_INVALIDATE); + } + return; + } + int bandWidth = 1; + int hwndTrack = OS.GetDesktopWindow (); + if (parent !is null) hwndTrack = parent.handle; + int hDC = OS.GetDCEx (hwndTrack, 0, OS.DCX_CACHE); + int hBitmap = 0, hBrush = 0, oldBrush = 0; + if (stippled) { + bandWidth = 3; + byte [] bits = {-86, 0, 85, 0, -86, 0, 85, 0, -86, 0, 85, 0, -86, 0, 85, 0}; + hBitmap = OS.CreateBitmap (8, 8, 1, 1, bits); + hBrush = OS.CreatePatternBrush (hBitmap); + oldBrush = OS.SelectObject (hDC, hBrush); + } + for (int i=0; i<rects.length; i++) { + Rectangle rect = rects [i]; + OS.PatBlt (hDC, rect.x, rect.y, rect.width, bandWidth, OS.PATINVERT); + OS.PatBlt (hDC, rect.x, rect.y + bandWidth, bandWidth, rect.height - (bandWidth * 2), OS.PATINVERT); + OS.PatBlt (hDC, rect.x + rect.width - bandWidth, rect.y + bandWidth, bandWidth, rect.height - (bandWidth * 2), OS.PATINVERT); + OS.PatBlt (hDC, rect.x, rect.y + rect.height - bandWidth, rect.width, bandWidth, OS.PATINVERT); + } + if (stippled) { + OS.SelectObject (hDC, oldBrush); + OS.DeleteObject (hBrush); + OS.DeleteObject (hBitmap); + } + OS.ReleaseDC (hwndTrack, hDC); +} + +/** + * Returns the bounds that are being drawn, expressed relative to the parent + * widget. If the parent is a <code>Display</code> then these are screen + * coordinates. + * + * @return the bounds of the Rectangles being drawn + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Rectangle [] getRectangles () { + checkWidget(); + Rectangle [] result = new Rectangle [rectangles.length]; + for (int i = 0; i < rectangles.length; i++) { + Rectangle current = rectangles [i]; + result [i] = new Rectangle (current.x, current.y, current.width, current.height); + } + return result; +} + +/** + * Returns <code>true</code> if the rectangles are drawn with a stippled line, <code>false</code> otherwise. + * + * @return the stippled effect of the rectangles + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getStippled () { + checkWidget (); + return stippled; +} + +void moveRectangles (int xChange, int yChange) { + if (bounds is null) return; + if (xChange < 0 && ((style & DWT.LEFT) is 0)) xChange = 0; + if (xChange > 0 && ((style & DWT.RIGHT) is 0)) xChange = 0; + if (yChange < 0 && ((style & DWT.UP) is 0)) yChange = 0; + if (yChange > 0 && ((style & DWT.DOWN) is 0)) yChange = 0; + if (xChange is 0 && yChange is 0) return; + bounds.x += xChange; bounds.y += yChange; + for (int i = 0; i < rectangles.length; i++) { + rectangles [i].x += xChange; + rectangles [i].y += yChange; + } +} + +/** + * Displays the Tracker rectangles for manipulation by the user. Returns when + * the user has either finished manipulating the rectangles or has cancelled the + * Tracker. + * + * @return <code>true</code> if the user did not cancel the Tracker, <code>false</code> otherwise + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool open () { + checkWidget (); + cancelled = false; + tracking = true; + + /* + * If exactly one of UP/DOWN is specified as a style then set the cursor + * orientation accordingly (the same is done for LEFT/RIGHT styles below). + */ + int vStyle = style & (DWT.UP | DWT.DOWN); + if (vStyle is DWT.UP || vStyle is DWT.DOWN) { + cursorOrientation |= vStyle; + } + int hStyle = style & (DWT.LEFT | DWT.RIGHT); + if (hStyle is DWT.LEFT || hStyle is DWT.RIGHT) { + cursorOrientation |= hStyle; + } + + /* + * If this tracker is being created without a mouse drag then + * we need to create a transparent window that fills the screen + * in order to get all mouse/keyboard events that occur + * outside of our visible windows (ie.- over the desktop). + */ + Callback newProc = null; + bool mouseDown = OS.GetKeyState(OS.VK_LBUTTON) < 0; + bool isVista = !OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0); + if ((parent is null && isVista) || !mouseDown) { + int width = OS.GetSystemMetrics (OS.SM_CXSCREEN); + int height = OS.GetSystemMetrics (OS.SM_CYSCREEN); + hwndTransparent = OS.CreateWindowEx ( + isVista ? OS.WS_EX_LAYERED | OS.WS_EX_NOACTIVATE : OS.WS_EX_TRANSPARENT, + display.windowClass, + null, + OS.WS_POPUP, + 0, 0, + width, height, + 0, + 0, + OS.GetModuleHandle (null), + null); + oldProc = OS.GetWindowLong (hwndTransparent, OS.GWL_WNDPROC); + newProc = new Callback (this, "transparentProc", 4); //$NON-NLS-1$ + int newProcAddress = newProc.getAddress (); + if (newProcAddress is 0) DWT.error (DWT.ERROR_NO_MORE_CALLBACKS); + OS.SetWindowLong (hwndTransparent, OS.GWL_WNDPROC, newProcAddress); + if (isVista) { + OS.SetLayeredWindowAttributes (hwndTransparent, 0xFFFFFF, (byte)0xFF, OS.LWA_COLORKEY | OS.LWA_ALPHA); + } + OS.ShowWindow (hwndTransparent, OS.SW_SHOWNOACTIVATE); + } + + update (); + drawRectangles (rectangles, stippled); + Point cursorPos = null; + if (mouseDown) { + POINT pt = new POINT (); + OS.GetCursorPos (pt); + cursorPos = new Point (pt.x, pt.y); + } else { + if ((style & DWT.RESIZE) !is 0) { + cursorPos = adjustResizeCursor (); + } else { + cursorPos = adjustMoveCursor (); + } + } + if (cursorPos !is null) { + oldX = cursorPos.x; + oldY = cursorPos.y; + } + + try { + /* Tracker behaves like a Dialog with its own OS event loop. */ + MSG msg = new MSG (); + while (tracking && !cancelled) { + if (parent !is null && parent.isDisposed ()) break; + OS.GetMessage (msg, 0, 0, 0); + OS.TranslateMessage (msg); + switch (msg.message) { + case OS.WM_LBUTTONUP: + case OS.WM_MOUSEMOVE: + wmMouse (msg.message, msg.wParam, msg.lParam); + break; + case OS.WM_IME_CHAR: wmIMEChar (msg.hwnd, msg.wParam, msg.lParam); break; + case OS.WM_CHAR: wmChar (msg.hwnd, msg.wParam, msg.lParam); break; + case OS.WM_KEYDOWN: wmKeyDown (msg.hwnd, msg.wParam, msg.lParam); break; + case OS.WM_KEYUP: wmKeyUp (msg.hwnd, msg.wParam, msg.lParam); break; + case OS.WM_SYSCHAR: wmSysChar (msg.hwnd, msg.wParam, msg.lParam); break; + case OS.WM_SYSKEYDOWN: wmSysKeyDown (msg.hwnd, msg.wParam, msg.lParam); break; + case OS.WM_SYSKEYUP: wmSysKeyUp (msg.hwnd, msg.wParam, msg.lParam); break; + } + if (OS.WM_KEYFIRST <= msg.message && msg.message <= OS.WM_KEYLAST) continue; + if (OS.WM_MOUSEFIRST <= msg.message && msg.message <= OS.WM_MOUSELAST) continue; + if (!(parent is null && isVista)) { + if (msg.message is OS.WM_PAINT) { + update (); + drawRectangles (rectangles, stippled); + } + } + OS.DispatchMessage (msg); + if (!(parent is null && isVista)) { + if (msg.message is OS.WM_PAINT) { + drawRectangles (rectangles, stippled); + } + } + } + if (mouseDown) OS.ReleaseCapture (); + if (!isDisposed()) { + update (); + drawRectangles (rectangles, stippled); + } + } finally { + /* + * Cleanup: If a transparent window was created in order to capture events then + * destroy it and its callback object now. + */ + if (hwndTransparent !is 0) { + OS.DestroyWindow (hwndTransparent); + hwndTransparent = 0; + } + if (newProc !is null) { + newProc.dispose (); + oldProc = 0; + } + /* + * Cleanup: If this tracker was resizing then the last cursor that it created + * needs to be destroyed. + */ + if (resizeCursor !is 0) { + OS.DestroyCursor (resizeCursor); + resizeCursor = 0; + } + } + tracking = false; + return !cancelled; +} + +void releaseWidget () { + super.releaseWidget (); + parent = null; + rectangles = proportions = null; + bounds = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is moved or resized. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ControlListener + * @see #addControlListener + */ +public void removeControlListener (ControlListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Resize, listener); + eventTable.unhook (DWT.Move, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when keys are pressed and released on the system keyboard. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see KeyListener + * @see #addKeyListener + */ +public void removeKeyListener(KeyListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.KeyUp, listener); + eventTable.unhook (DWT.KeyDown, listener); +} + +void resizeRectangles (int xChange, int yChange) { + if (bounds is null) return; + /* + * If the cursor orientation has not been set in the orientation of + * this change then try to set it here. + */ + if (xChange < 0 && ((style & DWT.LEFT) !is 0) && ((cursorOrientation & DWT.RIGHT) is 0)) { + cursorOrientation |= DWT.LEFT; + } + if (xChange > 0 && ((style & DWT.RIGHT) !is 0) && ((cursorOrientation & DWT.LEFT) is 0)) { + cursorOrientation |= DWT.RIGHT; + } + if (yChange < 0 && ((style & DWT.UP) !is 0) && ((cursorOrientation & DWT.DOWN) is 0)) { + cursorOrientation |= DWT.UP; + } + if (yChange > 0 && ((style & DWT.DOWN) !is 0) && ((cursorOrientation & DWT.UP) is 0)) { + cursorOrientation |= DWT.DOWN; + } + + /* + * If the bounds will flip about the x or y axis then apply the adjustment + * up to the axis (ie.- where bounds width/height becomes 0), change the + * cursor's orientation accordingly, and flip each Rectangle's origin (only + * necessary for > 1 Rectangles) + */ + if ((cursorOrientation & DWT.LEFT) !is 0) { + if (xChange > bounds.width) { + if ((style & DWT.RIGHT) is 0) return; + cursorOrientation |= DWT.RIGHT; + cursorOrientation &= ~DWT.LEFT; + bounds.x += bounds.width; + xChange -= bounds.width; + bounds.width = 0; + if (proportions.length > 1) { + for (int i = 0; i < proportions.length; i++) { + Rectangle proportion = proportions [i]; + proportion.x = 100 - proportion.x - proportion.width; + } + } + } + } else if ((cursorOrientation & DWT.RIGHT) !is 0) { + if (bounds.width < -xChange) { + if ((style & DWT.LEFT) is 0) return; + cursorOrientation |= DWT.LEFT; + cursorOrientation &= ~DWT.RIGHT; + xChange += bounds.width; + bounds.width = 0; + if (proportions.length > 1) { + for (int i = 0; i < proportions.length; i++) { + Rectangle proportion = proportions [i]; + proportion.x = 100 - proportion.x - proportion.width; + } + } + } + } + if ((cursorOrientation & DWT.UP) !is 0) { + if (yChange > bounds.height) { + if ((style & DWT.DOWN) is 0) return; + cursorOrientation |= DWT.DOWN; + cursorOrientation &= ~DWT.UP; + bounds.y += bounds.height; + yChange -= bounds.height; + bounds.height = 0; + if (proportions.length > 1) { + for (int i = 0; i < proportions.length; i++) { + Rectangle proportion = proportions [i]; + proportion.y = 100 - proportion.y - proportion.height; + } + } + } + } else if ((cursorOrientation & DWT.DOWN) !is 0) { + if (bounds.height < -yChange) { + if ((style & DWT.UP) is 0) return; + cursorOrientation |= DWT.UP; + cursorOrientation &= ~DWT.DOWN; + yChange += bounds.height; + bounds.height = 0; + if (proportions.length > 1) { + for (int i = 0; i < proportions.length; i++) { + Rectangle proportion = proportions [i]; + proportion.y = 100 - proportion.y - proportion.height; + } + } + } + } + + // apply the bounds adjustment + if ((cursorOrientation & DWT.LEFT) !is 0) { + bounds.x += xChange; + bounds.width -= xChange; + } else if ((cursorOrientation & DWT.RIGHT) !is 0) { + bounds.width += xChange; + } + if ((cursorOrientation & DWT.UP) !is 0) { + bounds.y += yChange; + bounds.height -= yChange; + } else if ((cursorOrientation & DWT.DOWN) !is 0) { + bounds.height += yChange; + } + + Rectangle [] newRects = new Rectangle [rectangles.length]; + for (int i = 0; i < rectangles.length; i++) { + Rectangle proportion = proportions[i]; + newRects[i] = new Rectangle ( + proportion.x * bounds.width / 100 + bounds.x, + proportion.y * bounds.height / 100 + bounds.y, + proportion.width * bounds.width / 100, + proportion.height * bounds.height / 100); + } + rectangles = newRects; +} + +/** + * Sets the <code>Cursor</code> of the Tracker. If this cursor is <code>null</code> + * then the cursor reverts to the default. + * + * @param newCursor the new <code>Cursor</code> to display + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setCursor(Cursor newCursor) { + checkWidget(); + clientCursor = 0; + if (newCursor !is null) { + clientCursor = newCursor.handle; + if (inEvent) OS.SetCursor (clientCursor); + } +} + +/** + * Specifies the rectangles that should be drawn, expressed relative to the parent + * widget. If the parent is a Display then these are screen coordinates. + * + * @param rectangles the bounds of the rectangles to be drawn + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the set of rectangles is null or contains a null rectangle</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setRectangles (Rectangle [] rectangles) { + checkWidget (); + if (rectangles is null) error (DWT.ERROR_NULL_ARGUMENT); + this.rectangles = new Rectangle [rectangles.length]; + for (int i = 0; i < rectangles.length; i++) { + Rectangle current = rectangles [i]; + if (current is null) error (DWT.ERROR_NULL_ARGUMENT); + this.rectangles [i] = new Rectangle (current.x, current.y, current.width, current.height); + } + proportions = computeProportions (rectangles); +} + +/** + * Changes the appearance of the line used to draw the rectangles. + * + * @param stippled <code>true</code> if rectangle should appear stippled + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setStippled (bool stippled) { + checkWidget (); + this.stippled = stippled; +} + +int transparentProc (int hwnd, int msg, int wParam, int lParam) { + switch (msg) { + /* + * We typically do not want to answer that the transparent window is + * transparent to hits since doing so negates the effect of having it + * to grab events. However, clients of the tracker should not be aware + * of this transparent window. Therefore if there is a hit query + * performed as a result of client code then answer that the transparent + * window is transparent to hits so that its existence will not impact + * the client. + */ + case OS.WM_NCHITTEST: + if (inEvent) return OS.HTTRANSPARENT; + break; + case OS.WM_SETCURSOR: + if (clientCursor !is 0) { + OS.SetCursor (clientCursor); + return 1; + } + if (resizeCursor !is 0) { + OS.SetCursor (resizeCursor); + return 1; + } + break; + case OS.WM_PAINT: + if (parent is null && !OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + PAINTSTRUCT ps = new PAINTSTRUCT(); + int hDC = OS.BeginPaint (hwnd, ps); + int hBitmap = 0, hBrush = 0, oldBrush = 0; + int transparentBrush = OS.CreateSolidBrush(0xFFFFFF); + oldBrush = OS.SelectObject (hDC, transparentBrush); + OS.PatBlt (hDC, ps.left, ps.top, ps.right - ps.left, ps.bottom - ps.top, OS.PATCOPY); + OS.SelectObject (hDC, oldBrush); + OS.DeleteObject (transparentBrush); + int bandWidth = 1; + if (stippled) { + bandWidth = 3; + byte [] bits = {-86, 0, 85, 0, -86, 0, 85, 0, -86, 0, 85, 0, -86, 0, 85, 0}; + hBitmap = OS.CreateBitmap (8, 8, 1, 1, bits); + hBrush = OS.CreatePatternBrush (hBitmap); + oldBrush = OS.SelectObject (hDC, hBrush); + OS.SetBkColor (hDC, 0xF0F0F0); + } else { + oldBrush = OS.SelectObject (hDC, OS.GetStockObject(OS.BLACK_BRUSH)); + } + Rectangle[] rects = this.rectangles; + for (int i=0; i<rects.length; i++) { + Rectangle rect = rects [i]; + OS.PatBlt (hDC, rect.x, rect.y, rect.width, bandWidth, OS.PATCOPY); + OS.PatBlt (hDC, rect.x, rect.y + bandWidth, bandWidth, rect.height - (bandWidth * 2), OS.PATCOPY); + OS.PatBlt (hDC, rect.x + rect.width - bandWidth, rect.y + bandWidth, bandWidth, rect.height - (bandWidth * 2), OS.PATCOPY); + OS.PatBlt (hDC, rect.x, rect.y + rect.height - bandWidth, rect.width, bandWidth, OS.PATCOPY); + } + OS.SelectObject (hDC, oldBrush); + if (stippled) { + OS.DeleteObject (hBrush); + OS.DeleteObject (hBitmap); + } + OS.EndPaint (hwnd, ps); + return 0; + } + } + return OS.CallWindowProc (oldProc, hwnd, msg, wParam, lParam); +} + +void update () { + if (parent is null && !OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) return; + if (parent !is null) { + if (parent.isDisposed ()) return; + Shell shell = parent.getShell (); + shell.update (true); + } else { + display.update (); + } +} + +LRESULT wmKeyDown (int hwnd, int wParam, int lParam) { + LRESULT result = super.wmKeyDown (hwnd, wParam, lParam); + if (result !is null) return result; + bool isMirrored = parent !is null && (parent.style & DWT.MIRRORED) !is 0; + int stepSize = OS.GetKeyState (OS.VK_CONTROL) < 0 ? STEPSIZE_SMALL : STEPSIZE_LARGE; + int xChange = 0, yChange = 0; + switch (wParam) { + case OS.VK_ESCAPE: + cancelled = true; + tracking = false; + break; + case OS.VK_RETURN: + tracking = false; + break; + case OS.VK_LEFT: + xChange = isMirrored ? stepSize : -stepSize; + break; + case OS.VK_RIGHT: + xChange = isMirrored ? -stepSize : stepSize; + break; + case OS.VK_UP: + yChange = -stepSize; + break; + case OS.VK_DOWN: + yChange = stepSize; + break; + } + if (xChange !is 0 || yChange !is 0) { + Rectangle [] oldRectangles = rectangles; + bool oldStippled = stippled; + Rectangle [] rectsToErase = new Rectangle [rectangles.length]; + for (int i = 0; i < rectangles.length; i++) { + Rectangle current = rectangles [i]; + rectsToErase [i] = new Rectangle (current.x, current.y, current.width, current.height); + } + Event event = new Event (); + event.x = oldX + xChange; + event.y = oldY + yChange; + Point cursorPos; + if ((style & DWT.RESIZE) !is 0) { + resizeRectangles (xChange, yChange); + inEvent = true; + sendEvent (DWT.Resize, event); + inEvent = false; + /* + * It is possible (but unlikely) that application + * code could have disposed the widget in the resize + * event. If this happens return false to indicate + * that the tracking has failed. + */ + if (isDisposed ()) { + cancelled = true; + return LRESULT.ONE; + } + bool draw = false; + /* + * It is possible that application code could have + * changed the rectangles in the resize event. If this + * happens then only redraw the tracker if the rectangle + * values have changed. + */ + if (rectangles !is oldRectangles) { + int length = rectangles.length; + if (length !is rectsToErase.length) { + draw = true; + } else { + for (int i = 0; i < length; i++) { + if (!rectangles [i].equals (rectsToErase [i])) { + draw = true; + break; + } + } + } + } else { + draw = true; + } + if (draw) { + drawRectangles (rectsToErase, oldStippled); + update (); + drawRectangles (rectangles, stippled); + } + cursorPos = adjustResizeCursor (); + } else { + moveRectangles (xChange, yChange); + inEvent = true; + sendEvent (DWT.Move, event); + inEvent = false; + /* + * It is possible (but unlikely) that application + * code could have disposed the widget in the move + * event. If this happens return false to indicate + * that the tracking has failed. + */ + if (isDisposed ()) { + cancelled = true; + return LRESULT.ONE; + } + bool draw = false; + /* + * It is possible that application code could have + * changed the rectangles in the move event. If this + * happens then only redraw the tracker if the rectangle + * values have changed. + */ + if (rectangles !is oldRectangles) { + int length = rectangles.length; + if (length !is rectsToErase.length) { + draw = true; + } else { + for (int i = 0; i < length; i++) { + if (!rectangles [i].equals (rectsToErase [i])) { + draw = true; + break; + } + } + } + } else { + draw = true; + } + if (draw) { + drawRectangles (rectsToErase, oldStippled); + update (); + drawRectangles (rectangles, stippled); + } + cursorPos = adjustMoveCursor (); + } + if (cursorPos !is null) { + oldX = cursorPos.x; + oldY = cursorPos.y; + } + } + return result; +} + +LRESULT wmSysKeyDown (int hwnd, int wParam, int lParam) { + LRESULT result = super.wmSysKeyDown (hwnd, wParam, lParam); + if (result !is null) return result; + cancelled = true; + tracking = false; + return result; +} + +LRESULT wmMouse (int message, int wParam, int lParam) { + bool isMirrored = parent !is null && (parent.style & DWT.MIRRORED) !is 0; + int newPos = OS.GetMessagePos (); + int newX = (short) (newPos & 0xFFFF); + int newY = (short) (newPos >> 16); + if (newX !is oldX || newY !is oldY) { + Rectangle [] oldRectangles = rectangles; + bool oldStippled = stippled; + Rectangle [] rectsToErase = new Rectangle [rectangles.length]; + for (int i = 0; i < rectangles.length; i++) { + Rectangle current = rectangles [i]; + rectsToErase [i] = new Rectangle (current.x, current.y, current.width, current.height); + } + Event event = new Event (); + event.x = newX; + event.y = newY; + if ((style & DWT.RESIZE) !is 0) { + if (isMirrored) { + resizeRectangles (oldX - newX, newY - oldY); + } else { + resizeRectangles (newX - oldX, newY - oldY); + } + inEvent = true; + sendEvent (DWT.Resize, event); + inEvent = false; + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the resize + * event. If this happens, return false to indicate + * that the tracking has failed. + */ + if (isDisposed ()) { + cancelled = true; + return LRESULT.ONE; + } + bool draw = false; + /* + * It is possible that application code could have + * changed the rectangles in the resize event. If this + * happens then only redraw the tracker if the rectangle + * values have changed. + */ + if (rectangles !is oldRectangles) { + int length = rectangles.length; + if (length !is rectsToErase.length) { + draw = true; + } else { + for (int i = 0; i < length; i++) { + if (!rectangles [i].equals (rectsToErase [i])) { + draw = true; + break; + } + } + } + } + else { + draw = true; + } + if (draw) { + drawRectangles (rectsToErase, oldStippled); + update (); + drawRectangles (rectangles, stippled); + } + Point cursorPos = adjustResizeCursor (); + if (cursorPos !is null) { + newX = cursorPos.x; + newY = cursorPos.y; + } + } else { + if (isMirrored) { + moveRectangles (oldX - newX, newY - oldY); + } else { + moveRectangles (newX - oldX, newY - oldY); + } + inEvent = true; + sendEvent (DWT.Move, event); + inEvent = false; + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the move + * event. If this happens, return false to indicate + * that the tracking has failed. + */ + if (isDisposed ()) { + cancelled = true; + return LRESULT.ONE; + } + bool draw = false; + /* + * It is possible that application code could have + * changed the rectangles in the move event. If this + * happens then only redraw the tracker if the rectangle + * values have changed. + */ + if (rectangles !is oldRectangles) { + int length = rectangles.length; + if (length !is rectsToErase.length) { + draw = true; + } else { + for (int i = 0; i < length; i++) { + if (!rectangles [i].equals (rectsToErase [i])) { + draw = true; + break; + } + } + } + } else { + draw = true; + } + if (draw) { + drawRectangles (rectsToErase, oldStippled); + update (); + drawRectangles (rectangles, stippled); + } + } + oldX = newX; + oldY = newY; + } + tracking = message !is OS.WM_LBUTTONUP; + return null; +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Tray.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,152 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.Tray; + +import dwt.widgets.Display; +import dwt.widgets.Widget; +import dwt.widgets.TrayItem; +import dwt.DWT; +import dwt.dwthelper.System; + +/** + * Instances of this class represent the system tray that is part + * of the task bar status area on some operating systems. + * + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @see Display#getSystemTray + * + * @since 3.0 + */ +public class Tray : Widget { + int itemCount; + TrayItem [] items; + +this (Display display, int style) { + items = new TrayItem [4]; + if (display is null) display = Display.getCurrent (); + if (display is null) display = Display.getDefault (); + if (!display.isValidThread ()) { + error (DWT.ERROR_THREAD_INVALID_ACCESS); + } + this.display = display; +} + +void createItem (TrayItem item, int index) { + if (!(0 <= index && index <= itemCount)) error (DWT.ERROR_INVALID_RANGE); + if (itemCount is items.length) { + TrayItem [] newItems = new TrayItem [items.length + 4]; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; + } + System.arraycopy (items, index, items, index + 1, itemCount++ - index); + items [index] = item; +} + +void destroyItem (TrayItem item) { + int index = 0; + while (index < itemCount) { + if (items [index] is item) break; + index++; + } + if (index is itemCount) return; + System.arraycopy (items, index + 1, items, index, --itemCount - index); + items [itemCount] = null; +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TrayItem getItem (int index) { + checkWidget (); + if (!(0 <= index && index < itemCount)) error (DWT.ERROR_INVALID_RANGE); + return items [index]; +} + +/** + * Returns the number of items contained in the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + return itemCount; +} + +/** + * Returns an array of <code>TrayItem</code>s which are the items + * in the receiver. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TrayItem [] getItems () { + checkWidget (); + TrayItem [] result = new TrayItem [itemCount]; + System.arraycopy (items, 0, result, 0, result.length); + return result; +} + +void releaseChildren (bool destroy) { + if (items !is null) { + for (int i=0; i<items.length; i++) { + TrayItem item = items [i]; + if (item !is null && !item.isDisposed ()) { + item.release (false); + } + } + items = null; + } + super.releaseChildren (destroy); +} + +void releaseParent () { + super.releaseParent (); + if (display.tray is this) display.tray = null; +} + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/TrayItem.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,541 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.TrayItem; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class TrayItem : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ + +import dwt.DWT; +import dwt.DWTException; +import dwt.events.MenuDetectListener; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.Image; +import dwt.internal.win32.NOTIFYICONDATA; +import dwt.internal.win32.NOTIFYICONDATAA; +import dwt.internal.win32.NOTIFYICONDATAW; +import dwt.internal.win32.OS; +import dwt.internal.win32.TCHAR; + +/** + * Instances of this class represent icons that can be placed on the + * system tray or task bar status area. + * <p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>DefaultSelection, MenuDetect, Selection</dd> + * </dl> + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @since 3.0 + */ +public class TrayItem extends Item { + Tray parent; + int id; + Image image2; + ToolTip toolTip; + String toolTipText; + bool visible = true; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Tray</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TrayItem (Tray parent, int style) { + super (parent, style); + this.parent = parent; + parent.createItem (this, parent.getItemCount ()); + createWidget (); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the receiver is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the receiver is selected + * <code>widgetDefaultSelected</code> is called when the receiver is double-clicked + * </p> + * + * @param listener the listener which should be notified when the receiver is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the platform-specific context menu trigger + * has occurred, by sending it one of the messages defined in + * the <code>MenuDetectListener</code> interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MenuDetectListener + * @see #removeMenuDetectListener + * + * @since 3.3 + */ +public void addMenuDetectListener (MenuDetectListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.MenuDetect, typedListener); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +void createWidget () { + NOTIFYICONDATA iconData = OS.IsUnicode ? (NOTIFYICONDATA) new NOTIFYICONDATAW () : new NOTIFYICONDATAA (); + iconData.cbSize = NOTIFYICONDATA.sizeof; + iconData.uID = id = display.nextTrayId++; + iconData.hWnd = display.hwndMessage; + iconData.uFlags = OS.NIF_MESSAGE; + iconData.uCallbackMessage = Display.SWT_TRAYICONMSG; + OS.Shell_NotifyIcon (OS.NIM_ADD, iconData); +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +/** + * Returns the receiver's parent, which must be a <code>Tray</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public Tray getParent () { + checkWidget (); + return parent; +} + +/** + * Returns the receiver's tool tip, or null if it has + * not been set. + * + * @return the receiver's tool tip text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public ToolTip getToolTip () { + checkWidget (); + return toolTip; +} + +/** + * Returns the receiver's tool tip text, or null if it has + * not been set. + * + * @return the receiver's tool tip text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public String getToolTipText () { + checkWidget (); + return toolTipText; +} + +/** + * Returns <code>true</code> if the receiver is visible and + * <code>false</code> otherwise. + * + * @return the receiver's visibility + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getVisible () { + checkWidget (); + return visible; +} + +int messageProc (int hwnd, int msg, int wParam, int lParam) { + /* + * Feature in Windows. When the user clicks on the tray + * icon, another application may be the foreground window. + * This means that the event loop is not running and can + * cause problems. For example, if a menu is shown, when + * the user clicks outside of the menu to cancel it, the + * menu is not hidden until an event is processed. If + * another application is the foreground window, then the + * menu is not hidden. The fix is to force the tray icon + * message window to the foreground when sending an event. + */ + switch (lParam) { + case OS.WM_LBUTTONDOWN: + if (hooks (DWT.Selection)) { + OS.SetForegroundWindow (hwnd); + postEvent (DWT.Selection); + } + break; + case OS.WM_LBUTTONDBLCLK: + case OS.WM_RBUTTONDBLCLK: + if (hooks (DWT.DefaultSelection)) { + OS.SetForegroundWindow (hwnd); + postEvent (DWT.DefaultSelection); + } + break; + case OS.WM_RBUTTONUP: { + if (hooks (DWT.MenuDetect)) { + OS.SetForegroundWindow (hwnd); + sendEvent (DWT.MenuDetect); + // widget could be disposed at this point + if (isDisposed()) return 0; + } + break; + } + case OS.NIN_BALLOONSHOW: + if (toolTip !is null && !toolTip.visible) { + toolTip.visible = true; + if (toolTip.hooks (DWT.Show)) { + OS.SetForegroundWindow (hwnd); + toolTip.sendEvent (DWT.Show); + // widget could be disposed at this point + if (isDisposed()) return 0; + } + } + break; + case OS.NIN_BALLOONHIDE: + case OS.NIN_BALLOONTIMEOUT: + case OS.NIN_BALLOONUSERCLICK: + if (toolTip !is null) { + if (toolTip.visible) { + toolTip.visible = false; + if (toolTip.hooks (DWT.Hide)) { + OS.SetForegroundWindow (hwnd); + toolTip.sendEvent (DWT.Hide); + // widget could be disposed at this point + if (isDisposed()) return 0; + } + } + if (lParam is OS.NIN_BALLOONUSERCLICK) { + if (toolTip.hooks (DWT.Selection)) { + OS.SetForegroundWindow (hwnd); + toolTip.postEvent (DWT.Selection); + // widget could be disposed at this point + if (isDisposed()) return 0; + } + } + } + break; + } + display.wakeThread (); + return 0; +} + +void recreate () { + createWidget (); + if (!visible) setVisible (false); + if (text.length () !is 0) setText (text); + if (image !is null) setImage (image); + if (toolTipText !is null) setToolTipText (toolTipText); +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; +} + +void releaseWidget () { + super.releaseWidget (); + if (toolTip !is null) toolTip.item = null; + toolTip = null; + if (image2 !is null) image2.dispose (); + image2 = null; + toolTipText = null; + NOTIFYICONDATA iconData = OS.IsUnicode ? (NOTIFYICONDATA) new NOTIFYICONDATAW () : new NOTIFYICONDATAA (); + iconData.cbSize = NOTIFYICONDATA.sizeof; + iconData.uID = id; + iconData.hWnd = display.hwndMessage; + OS.Shell_NotifyIcon (OS.NIM_DELETE, iconData); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the receiver is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the platform-specific context menu trigger has + * occurred. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see MenuDetectListener + * @see #addMenuDetectListener + * + * @since 3.3 + */ +public void removeMenuDetectListener (MenuDetectListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.MenuDetect, listener); +} + +/** + * Sets the receiver's image. + * + * @param image the new image + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setImage (Image image) { + checkWidget (); + if (image !is null && image.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + super.setImage (image); + if (image2 !is null) image2.dispose (); + image2 = null; + int hIcon = 0; + Image icon = image; + if (icon !is null) { + switch (icon.type) { + case DWT.BITMAP: + image2 = Display.createIcon (image); + hIcon = image2.handle; + break; + case DWT.ICON: + hIcon = icon.handle; + break; + } + } + NOTIFYICONDATA iconData = OS.IsUnicode ? (NOTIFYICONDATA) new NOTIFYICONDATAW () : new NOTIFYICONDATAA (); + iconData.cbSize = NOTIFYICONDATA.sizeof; + iconData.uID = id; + iconData.hWnd = display.hwndMessage; + iconData.hIcon = hIcon; + iconData.uFlags = OS.NIF_ICON; + OS.Shell_NotifyIcon (OS.NIM_MODIFY, iconData); +} + +/** + * Sets the receiver's tool tip to the argument, which + * may be null indicating that no tool tip should be shown. + * + * @param toolTip the new tool tip (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setToolTip (ToolTip toolTip) { + checkWidget (); + ToolTip oldTip = this.toolTip, newTip = toolTip; + if (oldTip !is null) oldTip.item = null; + this.toolTip = newTip; + if (newTip !is null) newTip.item = this; +} + +/** + * Sets the receiver's tool tip text to the argument, which + * may be null indicating that no tool tip text should be shown. + * + * @param value the new tool tip text (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setToolTipText (String value) { + checkWidget (); + toolTipText = value; + NOTIFYICONDATA iconData = OS.IsUnicode ? (NOTIFYICONDATA) new NOTIFYICONDATAW () : new NOTIFYICONDATAA (); + TCHAR buffer = new TCHAR (0, toolTipText is null ? "" : toolTipText, true); + /* + * Note that the size of the szTip field is different in version 5.0 of shell32.dll. + */ + int length = OS.SHELL32_MAJOR < 5 ? 64 : 128; + if (OS.IsUnicode) { + char [] szTip = ((NOTIFYICONDATAW) iconData).szTip; + length = Math.min (length - 1, buffer.length ()); + System.arraycopy (buffer.chars, 0, szTip, 0, length); + } else { + byte [] szTip = ((NOTIFYICONDATAA) iconData).szTip; + length = Math.min (length - 1, buffer.length ()); + System.arraycopy (buffer.bytes, 0, szTip, 0, length); + } + iconData.cbSize = NOTIFYICONDATA.sizeof; + iconData.uID = id; + iconData.hWnd = display.hwndMessage; + iconData.uFlags = OS.NIF_TIP; + OS.Shell_NotifyIcon (OS.NIM_MODIFY, iconData); +} + +/** + * Makes the receiver visible if the argument is <code>true</code>, + * and makes it invisible otherwise. + * + * @param visible the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setVisible (bool visible) { + checkWidget (); + if (this.visible is visible) return; + if (visible) { + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the show + * event. If this happens, just return. + */ + sendEvent (DWT.Show); + if (isDisposed ()) return; + } + this.visible = visible; + NOTIFYICONDATA iconData = OS.IsUnicode ? (NOTIFYICONDATA) new NOTIFYICONDATAW () : new NOTIFYICONDATAA (); + iconData.cbSize = NOTIFYICONDATA.sizeof; + iconData.uID = id; + iconData.hWnd = display.hwndMessage; + if (OS.SHELL32_MAJOR < 5) { + if (visible) { + iconData.uFlags = OS.NIF_MESSAGE; + iconData.uCallbackMessage = Display.SWT_TRAYICONMSG; + OS.Shell_NotifyIcon (OS.NIM_ADD, iconData); + setImage (image); + setToolTipText (toolTipText); + } else { + OS.Shell_NotifyIcon (OS.NIM_DELETE, iconData); + } + } else { + iconData.uFlags = OS.NIF_STATE; + iconData.dwState = visible ? 0 : OS.NIS_HIDDEN; + iconData.dwStateMask = OS.NIS_HIDDEN; + OS.Shell_NotifyIcon (OS.NIM_MODIFY, iconData); + } + if (!visible) sendEvent (DWT.Hide); +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Tree.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,7209 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Tree; + +import dwt.widgets.Composite; +class Tree : Composite { +} +/++ + + +import dwt.DWT; +import dwt.DWTException; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.events.TreeListener; +import dwt.graphics.Cursor; +import dwt.graphics.Font; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.Callback; +import dwt.internal.ImageList; +import dwt.internal.win32.HDHITTESTINFO; +import dwt.internal.win32.HDITEM; +import dwt.internal.win32.HDLAYOUT; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.NMHDR; +import dwt.internal.win32.NMHEADER; +import dwt.internal.win32.NMRGINFO; +import dwt.internal.win32.NMTTDISPINFO; +import dwt.internal.win32.NMTVCUSTOMDRAW; +import dwt.internal.win32.NMTVDISPINFO; +import dwt.internal.win32.NMTVITEMCHANGE; +import dwt.internal.win32.OS; +import dwt.internal.win32.PAINTSTRUCT; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SCROLLINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TEXTMETRIC; +import dwt.internal.win32.TEXTMETRICA; +import dwt.internal.win32.TEXTMETRICW; +import dwt.internal.win32.TOOLINFO; +import dwt.internal.win32.TVHITTESTINFO; +import dwt.internal.win32.TVINSERTSTRUCT; +import dwt.internal.win32.TVITEM; +import dwt.internal.win32.TVSORTCB; +import dwt.internal.win32.WINDOWPOS; +import dwt.internal.win32.WNDCLASS; + +/** + * Instances of this class provide a selectable user interface object + * that displays a hierarchy of items and issues notification when an + * item in the hierarchy is selected. + * <p> + * The item children that may be added to instances of this class + * must be of type <code>TreeItem</code>. + * </p><p> + * Style <code>VIRTUAL</code> is used to create a <code>Tree</code> whose + * <code>TreeItem</code>s are to be populated by the client on an on-demand basis + * instead of up-front. This can provide significant performance improvements for + * trees that are very large or for which <code>TreeItem</code> population is + * expensive (for example, retrieving values from an external source). + * </p><p> + * Here is an example of using a <code>Tree</code> with style <code>VIRTUAL</code>: + * <code><pre> + * final Tree tree = new Tree(parent, DWT.VIRTUAL | DWT.BORDER); + * tree.setItemCount(20); + * tree.addListener(DWT.SetData, new Listener() { + * public void handleEvent(Event event) { + * TreeItem item = (TreeItem)event.item; + * TreeItem parentItem = item.getParentItem(); + * String text = null; + * if (parentItem is null) { + * text = "node " + tree.indexOf(item); + * } else { + * text = parentItem.getText() + " - " + parentItem.indexOf(item); + * } + * item.setText(text); + * System.out.println(text); + * item.setItemCount(10); + * } + * }); + * </pre></code> + * </p><p> + * Note that although this class is a subclass of <code>Composite</code>, + * it does not make sense to add <code>Control</code> children to it, + * or set a layout on it. + * </p><p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>SINGLE, MULTI, CHECK, FULL_SELECTION, VIRTUAL</dd> + * <dt><b>Events:</b></dt> + * <dd>Selection, DefaultSelection, Collapse, Expand, SetData, MeasureItem, EraseItem, PaintItem</dd> + * </dl> + * </p><p> + * Note: Only one of the styles SINGLE and MULTI may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ +public class Tree extends Composite { + TreeItem [] items; + TreeColumn [] columns; + ImageList imageList, headerImageList; + TreeItem currentItem; + TreeColumn sortColumn; + int hwndParent, hwndHeader, hAnchor, hInsert, lastID, hSelect; + int hFirstIndexOf, hLastIndexOf, lastIndexOf, itemCount, sortDirection; + bool dragStarted, gestureCompleted, insertAfter, shrink, ignoreShrink; + bool ignoreSelect, ignoreExpand, ignoreDeselect, ignoreResize; + bool lockSelection, oldSelected, newSelected, ignoreColumnMove; + bool linesVisible, customDraw, printClient, painted, ignoreItemHeight; + bool ignoreCustomDraw, ignoreDrawForeground, ignoreDrawBackground, ignoreDrawFocus; + bool ignoreDrawSelection, ignoreDrawHot, ignoreFullSelection, explorerTheme; + int scrollWidth, itemToolTipHandle, headerToolTipHandle, selectionForeground; + static final int INSET = 3; + static final int GRID_WIDTH = 1; + static final int SORT_WIDTH = 10; + static final int HEADER_MARGIN = 12; + static final int HEADER_EXTRA = 3; + static final int INCREMENT = 5; + static final int EXPLORER_EXTRA = 2; + static final bool EXPLORER_THEME = true; + static final int TreeProc; + static final TCHAR TreeClass = new TCHAR (0, OS.WC_TREEVIEW, true); + static final int HeaderProc; + static final TCHAR HeaderClass = new TCHAR (0, OS.WC_HEADER, true); + static { + WNDCLASS lpWndClass = new WNDCLASS (); + OS.GetClassInfo (0, TreeClass, lpWndClass); + TreeProc = lpWndClass.lpfnWndProc; + OS.GetClassInfo (0, HeaderClass, lpWndClass); + HeaderProc = lpWndClass.lpfnWndProc; + } + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#SINGLE + * @see DWT#MULTI + * @see DWT#CHECK + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Tree (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +static int checkStyle (int style) { + /* + * Feature in Windows. It is not possible to create + * a tree that scrolls and does not have scroll bars. + * The TVS_NOSCROLL style will remove the scroll bars + * but the tree will never scroll. Therefore, no matter + * what style bits are specified, set the H_SCROLL and + * V_SCROLL bits so that the DWT style will match the + * widget that Windows creates. + */ + style |= DWT.H_SCROLL | DWT.V_SCROLL; + return checkBits (style, DWT.SINGLE, DWT.MULTI, 0, 0, 0, 0); +} + +void _addListener (int eventType, Listener listener) { + super._addListener (eventType, listener); + switch (eventType) { + case DWT.DragDetect: { + if ((state & DRAG_DETECT) !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bits &= ~OS.TVS_DISABLEDRAGDROP; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + } + break; + } + case DWT.MeasureItem: + case DWT.EraseItem: + case DWT.PaintItem: { + customDraw = true; + style |= DWT.DOUBLE_BUFFERED; + OS.SendMessage (handle, OS.TVM_SETSCROLLTIME, 0, 0); + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bits |= OS.TVS_NOTOOLTIPS; + if (eventType is DWT.MeasureItem) bits |= OS.TVS_NOHSCROLL; + /* + * Feature in Windows. When the tree has the style + * TVS_FULLROWSELECT, the background color for the + * entire row is filled when an item is painted, + * drawing on top of any custom drawing. The fix + * is to clear TVS_FULLROWSELECT. + */ + if ((style & DWT.FULL_SELECTION) !is 0) { + if (eventType !is DWT.MeasureItem) { + if (!explorerTheme) bits &= ~OS.TVS_FULLROWSELECT; + } + } + if (bits !is OS.GetWindowLong (handle, OS.GWL_STYLE)) { + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + OS.InvalidateRect (handle, null, true); + /* + * Bug in Windows. When TVS_NOHSCROLL is set after items + * have been inserted into the tree, Windows shows the + * scroll bar. The fix is to check for this case and + * explicitly hide the scroll bar. + */ + int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); + if (count !is 0 && (bits & OS.TVS_NOHSCROLL) !is 0) { + if (!OS.IsWinCE) OS.ShowScrollBar (handle, OS.SB_HORZ, false); + } + } + break; + } + } +} + +TreeItem _getItem (int hItem) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + tvItem.hItem = hItem; + if (OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem) !is 0) { + return _getItem (tvItem.hItem, tvItem.lParam); + } + return null; +} + +TreeItem _getItem (int hItem, int id) { + if ((style & DWT.VIRTUAL) is 0) return items [id]; + return id !is -1 ? items [id] : new TreeItem (this, DWT.NONE, -1, -1, hItem); +} + +void _setBackgroundPixel (int newPixel) { + int oldPixel = OS.SendMessage (handle, OS.TVM_GETBKCOLOR, 0, 0); + if (oldPixel !is newPixel) { + /* + * Bug in Windows. When TVM_SETBKCOLOR is used more + * than once to set the background color of a tree, + * the background color of the lines and the plus/minus + * does not change to the new color. The fix is to set + * the background color to the default before setting + * the new color. + */ + if (oldPixel !is -1) { + OS.SendMessage (handle, OS.TVM_SETBKCOLOR, 0, -1); + } + + /* Set the background color */ + OS.SendMessage (handle, OS.TVM_SETBKCOLOR, 0, newPixel); + + /* + * Feature in Windows. When TVM_SETBKCOLOR is used to + * set the background color of a tree, the plus/minus + * animation draws badly. The fix is to clear the effect. + */ + if (explorerTheme) { + int bits2 = OS.SendMessage (handle, OS.TVM_GETEXTENDEDSTYLE, 0, 0); + if (newPixel is -1 && findImageControl () is null) { + bits2 |= OS.TVS_EX_FADEINOUTEXPANDOS; + } else { + bits2 &= ~OS.TVS_EX_FADEINOUTEXPANDOS; + } + OS.SendMessage (handle, OS.TVM_SETEXTENDEDSTYLE, 0, bits2); + } + + /* Set the checkbox image list */ + if ((style & DWT.CHECK) !is 0) setCheckboxImageList (); + } +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the user changes the receiver's selection, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * When <code>widgetSelected</code> is called, the item field of the event object is valid. + * If the receiver has the <code>DWT.CHECK</code> style and the check selection changes, + * the event object detail field contains the value <code>DWT.CHECK</code>. + * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. + * The item field of the event object is valid for default selection, but the detail field is not used. + * </p> + * + * @param listener the listener which should be notified when the user changes the receiver's selection + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection, typedListener); + addListener (DWT.DefaultSelection, typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when an item in the receiver is expanded or collapsed + * by sending it one of the messages defined in the <code>TreeListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see TreeListener + * @see #removeTreeListener + */ +public void addTreeListener(TreeListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Expand, typedListener); + addListener (DWT.Collapse, typedListener); +} + +int borderHandle () { + return hwndParent !is 0 ? hwndParent : handle; +} + +LRESULT CDDS_ITEMPOSTPAINT (NMTVCUSTOMDRAW nmcd, int wParam, int lParam) { + if (ignoreCustomDraw) return null; + if (nmcd.left is nmcd.right) return new LRESULT (OS.CDRF_DODEFAULT); + int hDC = nmcd.hdc; + OS.RestoreDC (hDC, -1); + TreeItem item = getItem (nmcd); + + /* + * Feature in Windows. When a new tree item is inserted + * using TVM_INSERTITEM and the tree is using custom draw, + * a NM_CUSTOMDRAW is sent before TVM_INSERTITEM returns + * and before the item is added to the items array. The + * fix is to check for null. + * + * NOTE: This only happens on XP with the version 6.00 of + * COMCTL32.DLL, + */ + if (item is null) return null; + + /* + * Feature in Windows. Under certain circumstances, Windows + * sends CDDS_ITEMPOSTPAINT for an empty rectangle. This is + * not a problem providing that graphics do not occur outside + * the rectangle. The fix is to test for the rectangle and + * draw nothing. + * + * NOTE: This seems to happen when both I_IMAGECALLBACK + * and LPSTR_TEXTCALLBACK are used at the same time with + * TVM_SETITEM. + */ + if (nmcd.left >= nmcd.right || nmcd.top >= nmcd.bottom) return null; + if (!OS.IsWindowVisible (handle)) return null; + if ((style & DWT.FULL_SELECTION) !is 0 || findImageControl () !is null || ignoreDrawSelection || explorerTheme) { + OS.SetBkMode (hDC, OS.TRANSPARENT); + } + bool selected = isItemSelected (nmcd); + bool hot = explorerTheme && (nmcd.uItemState & OS.CDIS_HOT) !is 0; + if (OS.IsWindowEnabled (handle)) { + if (explorerTheme) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_TRACKSELECT) !is 0) { + if ((style & DWT.FULL_SELECTION) !is 0 && (selected || hot)) { + OS.SetTextColor (hDC, OS.GetSysColor (OS.COLOR_WINDOWTEXT)); + } else { + OS.SetTextColor (hDC, getForegroundPixel ()); + } + } + } + } + int count = 0; + int [] order = null; + RECT clientRect = new RECT (); + OS.GetClientRect (scrolledHandle (), clientRect); + if (hwndHeader !is 0) { + OS.MapWindowPoints (hwndParent, handle, clientRect, 2); + count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (count !is 0) { + order = new int [count]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); + } + } + int sortIndex = -1, clrSortBk = -1; + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (sortColumn !is null && sortDirection !is DWT.NONE) { + if (findImageControl () is null) { + sortIndex = indexOf (sortColumn); + clrSortBk = getSortColumnPixel (); + } + } + } + int x = 0; + Point size = null; + for (int i=0; i<Math.max (1, count); i++) { + int index = order is null ? i : order [i], width = nmcd.right - nmcd.left; + if (count > 0 && hwndHeader !is 0) { + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + width = hdItem.cxy; + } + if (i is 0) { + if ((style & DWT.FULL_SELECTION) !is 0) { + bool clear = !explorerTheme && !ignoreDrawSelection && findImageControl () is null; + if (clear || (selected && !ignoreDrawSelection) || (hot && !ignoreDrawHot)) { + bool draw = true; + RECT pClipRect = new RECT (); + OS.SetRect (pClipRect, width, nmcd.top, nmcd.right, nmcd.bottom); + if (explorerTheme) { + if (hooks (DWT.EraseItem)) { + RECT itemRect = item.getBounds (index, true, true, false, false, true, hDC); + itemRect.left -= EXPLORER_EXTRA; + itemRect.right += EXPLORER_EXTRA + 1; + pClipRect.left = itemRect.left; + pClipRect.right = itemRect.right; + if (count > 0 && hwndHeader !is 0) { + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + pClipRect.right = Math.min (pClipRect.right, nmcd.left + hdItem.cxy); + } + } + RECT pRect = new RECT (); + OS.SetRect (pRect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if (count > 0 && hwndHeader !is 0) { + int totalWidth = 0; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + for (int j=0; j<count; j++) { + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, j, hdItem); + totalWidth += hdItem.cxy; + } + if (totalWidth > clientRect.right - clientRect.left) { + pRect.left = 0; + pRect.right = totalWidth; + } else { + pRect.left = clientRect.left; + pRect.right = clientRect.right; + } + } + draw = false; + int hTheme = OS.OpenThemeData (handle, Display.TREEVIEW); + int iStateId = selected ? OS.TREIS_SELECTED : OS.TREIS_HOT; + if (OS.GetFocus () !is handle && selected && !hot) iStateId = OS.TREIS_SELECTEDNOTFOCUS; + OS.DrawThemeBackground (hTheme, hDC, OS.TVP_TREEITEM, iStateId, pRect, pClipRect); + OS.CloseThemeData (hTheme); + } + if (draw) fillBackground (hDC, OS.GetBkColor (hDC), pClipRect); + } + } else { + if (explorerTheme && hooks (DWT.EraseItem)) { + if ((selected && !ignoreDrawSelection) || (hot && !ignoreDrawHot)) { + RECT pRect = item.getBounds (index, true, true, false, false, false, hDC); + RECT pClipRect = item.getBounds (index, true, true, false, false, true, hDC); + pRect.left -= EXPLORER_EXTRA; + pRect.right += EXPLORER_EXTRA; + pClipRect.left -= EXPLORER_EXTRA; + pClipRect.right += EXPLORER_EXTRA; + int hTheme = OS.OpenThemeData (handle, Display.TREEVIEW); + int iStateId = selected ? OS.TREIS_SELECTED : OS.TREIS_HOT; + if (OS.GetFocus () !is handle && selected && !hot) iStateId = OS.TREIS_SELECTEDNOTFOCUS; + OS.DrawThemeBackground (hTheme, hDC, OS.TVP_TREEITEM, iStateId, pRect, pClipRect); + OS.CloseThemeData (hTheme); + } + } + } + } + if (x + width > clientRect.left) { + RECT rect = new RECT (), backgroundRect = null; + bool drawItem = true, drawText = true, drawImage = true, drawBackground = false; + if (i is 0) { + drawItem = drawImage = drawText = false; + if (findImageControl () !is null) { + if (explorerTheme) { + if (OS.IsWindowEnabled (handle) && !hooks (DWT.EraseItem)) { + Image image = null; + if (index is 0) { + image = item.image; + } else { + Image [] images = item.images; + if (images !is null) image = images [index]; + } + if (image !is null) { + Rectangle bounds = image.getBounds (); + if (size is null) size = getImageSize (); + if (!ignoreDrawForeground) { + GCData data = new GCData(); + data.device = display; + GC gc = GC.win32_new (hDC, data); + RECT iconRect = item.getBounds (index, false, true, false, false, true, hDC); + gc.setClipping (iconRect.left, iconRect.top, iconRect.right - iconRect.left, iconRect.bottom - iconRect.top); + gc.drawImage (image, 0, 0, bounds.width, bounds.height, iconRect.left, iconRect.top, size.x, size.y); + OS.SelectClipRgn (hDC, 0); + gc.dispose (); + } + } + } + } else { + drawItem = drawText = drawBackground = true; + rect = item.getBounds (index, true, false, false, false, true, hDC); + if (linesVisible) { + rect.right++; + rect.bottom++; + } + } + } + if (selected && !ignoreDrawSelection && !ignoreDrawBackground) { + if (!explorerTheme) fillBackground (hDC, OS.GetBkColor (hDC), rect); + drawBackground = false; + } + backgroundRect = rect; + if (hooks (DWT.EraseItem)) { + drawItem = drawText = drawImage = true; + rect = item.getBounds (index, true, true, false, false, true, hDC); + if ((style & DWT.FULL_SELECTION) !is 0) { + backgroundRect = rect; + } else { + backgroundRect = item.getBounds (index, true, false, false, false, true, hDC); + } + } + } else { + selectionForeground = -1; + ignoreDrawForeground = ignoreDrawBackground = ignoreDrawSelection = ignoreDrawFocus = ignoreDrawHot = false; + OS.SetRect (rect, x, nmcd.top, x + width, nmcd.bottom); + backgroundRect = rect; + } + int clrText = -1, clrTextBk = -1; + int hFont = item.cellFont !is null ? item.cellFont [index] : -1; + if (hFont is -1) hFont = item.font; + if (selectionForeground !is -1) clrText = selectionForeground; + if (OS.IsWindowEnabled (handle)) { + bool drawForeground = false; + if (selected) { + if (i !is 0 && (style & DWT.FULL_SELECTION) is 0) { + OS.SetTextColor (hDC, getForegroundPixel ()); + OS.SetBkColor (hDC, getBackgroundPixel ()); + drawForeground = drawBackground = true; + } + } else { + drawForeground = drawBackground = true; + } + if (drawForeground) { + clrText = item.cellForeground !is null ? item.cellForeground [index] : -1; + if (clrText is -1) clrText = item.foreground; + } + if (drawBackground) { + clrTextBk = item.cellBackground !is null ? item.cellBackground [index] : -1; + if (clrTextBk is -1) clrTextBk = item.background; + if (clrTextBk is -1 && index is sortIndex) clrTextBk = clrSortBk; + } + } else { + if (clrTextBk is -1 && index is sortIndex) { + drawBackground = true; + clrTextBk = clrSortBk; + } + } + if (explorerTheme) { + if (selected || (nmcd.uItemState & OS.CDIS_HOT) !is 0) { + if ((style & DWT.FULL_SELECTION) !is 0) { + drawBackground = false; + } else { + if (i is 0) { + drawBackground = false; + if (!hooks (DWT.EraseItem)) drawText = false; + } + } + } + } + if (drawItem) { + if (i !is 0) { + if (hooks (DWT.MeasureItem)) { + RECT itemRect = item.getBounds (index, true, true, false, false, false, hDC); + int nSavedDC = OS.SaveDC (hDC); + GCData data = new GCData (); + data.device = display; + data.hFont = hFont; + GC gc = GC.win32_new (hDC, data); + Event event = new Event (); + event.item = item; + event.index = index; + event.gc = gc; + event.x = itemRect.left; + event.y = itemRect.top; + event.width = itemRect.right - itemRect.left; + event.height = itemRect.bottom - itemRect.top; + sendEvent (DWT.MeasureItem, event); + event.gc = null; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); + if (isDisposed () || item.isDisposed ()) break; + if (event.height > getItemHeight ()) setItemHeight (event.height); + } + if (hooks (DWT.EraseItem)) { + RECT cellRect = item.getBounds (index, true, true, true, true, true, hDC); + int nSavedDC = OS.SaveDC (hDC); + GCData data = new GCData (); + data.device = display; + data.foreground = OS.GetTextColor (hDC); + data.background = OS.GetBkColor (hDC); + if (!selected || (style & DWT.FULL_SELECTION) is 0) { + if (clrText !is -1) data.foreground = clrText; + if (clrTextBk !is -1) data.background = clrTextBk; + } + data.hFont = hFont; + data.uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + GC gc = GC.win32_new (hDC, data); + Event event = new Event (); + event.item = item; + event.index = index; + event.gc = gc; + event.detail |= DWT.FOREGROUND; + if (clrTextBk !is -1) event.detail |= DWT.BACKGROUND; + if ((style & DWT.FULL_SELECTION) !is 0) { + if (hot) event.detail |= DWT.HOT; + if (selected) event.detail |= DWT.SELECTED; + if (!explorerTheme) { + //if ((nmcd.uItemState & OS.CDIS_FOCUS) !is 0) { + if (OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0) is nmcd.dwItemSpec) { + if (handle is OS.GetFocus ()) { + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((uiState & OS.UISF_HIDEFOCUS) is 0) event.detail |= DWT.FOCUSED; + } + } + } + } + event.x = cellRect.left; + event.y = cellRect.top; + event.width = cellRect.right - cellRect.left; + event.height = cellRect.bottom - cellRect.top; + gc.setClipping (event.x, event.y, event.width, event.height); + sendEvent (DWT.EraseItem, event); + event.gc = null; + int newTextClr = data.foreground; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); + if (isDisposed () || item.isDisposed ()) break; + if (event.doit) { + ignoreDrawForeground = (event.detail & DWT.FOREGROUND) is 0; + ignoreDrawBackground = (event.detail & DWT.BACKGROUND) is 0; + if ((style & DWT.FULL_SELECTION) !is 0) { + ignoreDrawSelection = (event.detail & DWT.SELECTED) is 0; + ignoreDrawFocus = (event.detail & DWT.FOCUSED) is 0; + ignoreDrawHot = (event.detail & DWT.HOT) is 0; + } + } else { + ignoreDrawForeground = ignoreDrawBackground = ignoreDrawSelection = ignoreDrawFocus = ignoreDrawHot = true; + } + if (selected && ignoreDrawSelection) ignoreDrawHot = true; + if ((style & DWT.FULL_SELECTION) !is 0) { + if (ignoreDrawSelection) ignoreFullSelection = true; + if (!ignoreDrawSelection || !ignoreDrawHot) { + if (!selected && !hot) { + selectionForeground = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT); + } else { + if (!explorerTheme) { + drawBackground = true; + ignoreDrawBackground = false; + if (handle is OS.GetFocus () && OS.IsWindowEnabled (handle)) { + clrTextBk = OS.GetSysColor (OS.COLOR_HIGHLIGHT); + } else { + clrTextBk = OS.GetSysColor (OS.COLOR_3DFACE); + } + if (!ignoreFullSelection && index is count - 1) { + RECT selectionRect = new RECT (); + OS.SetRect (selectionRect, backgroundRect.left, backgroundRect.top, nmcd.right, backgroundRect.bottom); + backgroundRect = selectionRect; + } + } else { + RECT pRect = new RECT (); + OS.SetRect (pRect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if (count > 0 && hwndHeader !is 0) { + int totalWidth = 0; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + for (int j=0; j<count; j++) { + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, j, hdItem); + totalWidth += hdItem.cxy; + } + if (totalWidth > clientRect.right - clientRect.left) { + pRect.left = 0; + pRect.right = totalWidth; + } else { + pRect.left = clientRect.left; + pRect.right = clientRect.right; + } + if (index is count - 1) { + RECT selectionRect = new RECT (); + OS.SetRect (selectionRect, backgroundRect.left, backgroundRect.top, pRect.right, backgroundRect.bottom); + backgroundRect = selectionRect; + } + } + int hTheme = OS.OpenThemeData (handle, Display.TREEVIEW); + int iStateId = selected ? OS.TREIS_SELECTED : OS.TREIS_HOT; + if (OS.GetFocus () !is handle && selected && !hot) iStateId = OS.TREIS_SELECTEDNOTFOCUS; + OS.DrawThemeBackground (hTheme, hDC, OS.TVP_TREEITEM, iStateId, pRect, backgroundRect); + OS.CloseThemeData (hTheme); + } + } + } else { + if (selected) { + selectionForeground = newTextClr; + if (!explorerTheme) { + if (clrTextBk is -1 && OS.IsWindowEnabled (handle)) { + Control control = findBackgroundControl (); + if (control is null) control = this; + clrTextBk = control.getBackgroundPixel (); + } + } + } + } + } + } + if (selectionForeground !is -1) clrText = selectionForeground; + } + if (!ignoreDrawBackground) { + if (clrTextBk !is -1) { + if (drawBackground) fillBackground (hDC, clrTextBk, backgroundRect); + } else { + Control control = findImageControl (); + if (control !is null) { + if (i is 0) { + int right = Math.min (rect.right, width); + OS.SetRect (rect, rect.left, rect.top, right, rect.bottom); + if (drawBackground) fillImageBackground (hDC, control, rect); + } else { + if (drawBackground) fillImageBackground (hDC, control, rect); + } + } + } + } + rect.left += INSET - 1; + if (drawImage) { + Image image = null; + if (index is 0) { + image = item.image; + } else { + Image [] images = item.images; + if (images !is null) image = images [index]; + } + int inset = i !is 0 ? INSET : 0; + int offset = i !is 0 ? INSET : INSET + 2; + if (image !is null) { + Rectangle bounds = image.getBounds (); + if (size is null) size = getImageSize (); + //int y = rect.top + (index is 0 ? (getItemHeight () - size.y) / 2 : 0); + int y = rect.top; + if (!ignoreDrawForeground) { + //TODO - share GC, clip the drawing for index is 0 + GCData data = new GCData(); + data.device = display; + GC gc = GC.win32_new (hDC, data); + //if (index is 0) { //must clear + //gc.setClipping (rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); + //} + gc.drawImage (image, 0, 0, bounds.width, bounds.height, rect.left - inset + 1, y, size.x, size.y); + gc.dispose (); + } + OS.SetRect (rect, rect.left + size.x + offset, rect.top, rect.right - inset, rect.bottom); + } else { + if (i is 0) { + if (OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0) !is 0) { + if (size is null) size = getImageSize (); + rect.left = Math.min (rect.left + size.x + offset, rect.right); + } + } else { + OS.SetRect (rect, rect.left + offset, rect.top, rect.right - inset, rect.bottom); + } + } + } + if (drawText) { + /* + * Bug in Windows. When DrawText() is used with DT_VCENTER + * and DT_ENDELLIPSIS, the ellipsis can draw outside of the + * rectangle when the rectangle is empty. The fix is avoid + * all text drawing for empty rectangles. + */ + if (rect.left < rect.right) { + String string = null; + if (index is 0) { + string = item.text; + } else { + String [] strings = item.strings; + if (strings !is null) string = strings [index]; + } + if (string !is null) { + if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); + if (clrText !is -1) clrText = OS.SetTextColor (hDC, clrText); + if (clrTextBk !is -1) clrTextBk = OS.SetBkColor (hDC, clrTextBk); + int flags = OS.DT_NOPREFIX | OS.DT_SINGLELINE | OS.DT_VCENTER; + if (i !is 0) flags |= OS.DT_ENDELLIPSIS; + TreeColumn column = columns !is null ? columns [index] : null; + if (column !is null) { + if ((column.style & DWT.CENTER) !is 0) flags |= OS.DT_CENTER; + if ((column.style & DWT.RIGHT) !is 0) flags |= OS.DT_RIGHT; + } + TCHAR buffer = new TCHAR (getCodePage (), string, false); + if (!ignoreDrawForeground) OS.DrawText (hDC, buffer, buffer.length (), rect, flags); + OS.DrawText (hDC, buffer, buffer.length (), rect, flags | OS.DT_CALCRECT); + if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); + if (clrText !is -1) clrText = OS.SetTextColor (hDC, clrText); + if (clrTextBk !is -1) clrTextBk = OS.SetBkColor (hDC, clrTextBk); + } + } + } + } + if (selectionForeground !is -1) clrText = selectionForeground; + if (hooks (DWT.PaintItem)) { + RECT itemRect = item.getBounds (index, true, true, false, false, false, hDC); + int nSavedDC = OS.SaveDC (hDC); + GCData data = new GCData (); + data.device = display; + data.hFont = hFont; + data.foreground = OS.GetTextColor (hDC); + data.background = OS.GetBkColor (hDC); + if (selected && (style & DWT.FULL_SELECTION) !is 0) { + if (selectionForeground !is -1) data.foreground = selectionForeground; + } else { + if (clrText !is -1) data.foreground = clrText; + if (clrTextBk !is -1) data.background = clrTextBk; + } + data.uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + GC gc = GC.win32_new (hDC, data); + Event event = new Event (); + event.item = item; + event.index = index; + event.gc = gc; + event.detail |= DWT.FOREGROUND; + if (clrTextBk !is -1) event.detail |= DWT.BACKGROUND; + if (hot) event.detail |= DWT.HOT; + if (selected && (i is 0 /*nmcd.iSubItem is 0*/ || (style & DWT.FULL_SELECTION) !is 0)) { + event.detail |= DWT.SELECTED; + } + if (!explorerTheme) { + //if ((nmcd.uItemState & OS.CDIS_FOCUS) !is 0) { + if (OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0) is nmcd.dwItemSpec) { + if (i is 0 /*nmcd.iSubItem is 0*/ || (style & DWT.FULL_SELECTION) !is 0) { + if (handle is OS.GetFocus ()) { + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((uiState & OS.UISF_HIDEFOCUS) is 0) event.detail |= DWT.FOCUSED; + } + } + } + } + event.x = itemRect.left; + event.y = itemRect.top; + event.width = itemRect.right - itemRect.left; + event.height = itemRect.bottom - itemRect.top; + RECT cellRect = item.getBounds (index, true, true, true, true, true, hDC); + int cellWidth = cellRect.right - cellRect.left; + int cellHeight = cellRect.bottom - cellRect.top; + gc.setClipping (cellRect.left, cellRect.top, cellWidth, cellHeight); + sendEvent (DWT.PaintItem, event); + event.gc = null; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); + if (isDisposed () || item.isDisposed ()) break; + } + } + x += width; + if (x > clientRect.right) break; + } + if (linesVisible) { + if ((style & DWT.FULL_SELECTION) !is 0) { + if (hwndHeader !is 0) { + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0) !is 0) { + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, 0, hdItem); + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left + hdItem.cxy, nmcd.top, nmcd.right, nmcd.bottom); + OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); + } + } + } + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); + } + if (!explorerTheme) { + if (handle is OS.GetFocus ()) { + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((uiState & OS.UISF_HIDEFOCUS) is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem is item.handle) { + if (!ignoreDrawFocus && findImageControl () !is null) { + if ((style & DWT.FULL_SELECTION) !is 0) { + RECT focusRect = new RECT (); + OS.SetRect (focusRect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if (count > 0 && hwndHeader !is 0) { + int width = 0; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + for (int j=0; j<count; j++) { + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, j, hdItem); + width += hdItem.cxy; + } + focusRect.left = 0; + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + focusRect.right = Math.max (width, rect.right - OS.GetSystemMetrics (OS.SM_CXVSCROLL)); + } + OS.DrawFocusRect (hDC, focusRect); + } else { + int index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); + RECT focusRect = item.getBounds (index, true, false, false, false, false, hDC); + RECT clipRect = item.getBounds (index, true, false, false, false, true, hDC); + OS.IntersectClipRect (hDC, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); + OS.DrawFocusRect (hDC, focusRect); + OS.SelectClipRgn (hDC, 0); + } + } + } + } + } + } + return new LRESULT (OS.CDRF_DODEFAULT); +} + +LRESULT CDDS_ITEMPREPAINT (NMTVCUSTOMDRAW nmcd, int wParam, int lParam) { + /* + * Even when custom draw is being ignored, the font needs + * to be selected into the HDC so that the item bounds are + * measured correctly. + */ + TreeItem item = getItem (nmcd); + /* + * Feature in Windows. When a new tree item is inserted + * using TVM_INSERTITEM and the tree is using custom draw, + * a NM_CUSTOMDRAW is sent before TVM_INSERTITEM returns + * and before the item is added to the items array. The + * fix is to check for null. + * + * NOTE: This only happens on XP with the version 6.00 of + * COMCTL32.DLL, + */ + if (item is null) return null; + int hDC = nmcd.hdc; + int index = hwndHeader !is 0 ? OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0) : 0; + int hFont = item.cellFont !is null ? item.cellFont [index] : -1; + if (hFont is -1) hFont = item.font; + if (hFont !is -1) OS.SelectObject (hDC, hFont); + if (ignoreCustomDraw || nmcd.left is nmcd.right) { + return new LRESULT (hFont is -1 ? OS.CDRF_DODEFAULT : OS.CDRF_NEWFONT); + } + int count = 0; + RECT clipRect = null; + if (hwndHeader !is 0) { + count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (count !is 0) { + bool clip = !printClient; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + clip = true; + } + if (clip) { + clipRect = new RECT (); + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + OS.SetRect (clipRect, nmcd.left, nmcd.top, nmcd.left + hdItem.cxy, nmcd.bottom); + } + } + } + int clrText = -1, clrTextBk = -1; + if (OS.IsWindowEnabled (handle)) { + clrText = item.cellForeground !is null ? item.cellForeground [index] : -1; + if (clrText is -1) clrText = item.foreground; + clrTextBk = item.cellBackground !is null ? item.cellBackground [index] : -1; + if (clrTextBk is -1) clrTextBk = item.background; + } + int clrSortBk = -1; + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (sortColumn !is null && sortDirection !is DWT.NONE) { + if (findImageControl () is null) { + if (indexOf (sortColumn) is index) { + clrSortBk = getSortColumnPixel (); + if (clrTextBk is -1) clrTextBk = clrSortBk; + } + } + } + } + bool selected = isItemSelected (nmcd); + bool hot = explorerTheme && (nmcd.uItemState & OS.CDIS_HOT) !is 0; + if (OS.IsWindowVisible (handle) && nmcd.left < nmcd.right && nmcd.top < nmcd.bottom) { + if (hFont !is -1) OS.SelectObject (hDC, hFont); + if (linesVisible) { + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); + } + //TODO - BUG - measure and erase sent when first column is clipped + if (hooks (DWT.MeasureItem)) { + RECT itemRect = item.getBounds (index, true, true, false, false, false, hDC); + int nSavedDC = OS.SaveDC (hDC); + GCData data = new GCData (); + data.device = display; + data.hFont = hFont; + GC gc = GC.win32_new (hDC, data); + Event event = new Event (); + event.item = item; + event.gc = gc; + event.index = index; + event.x = itemRect.left; + event.y = itemRect.top; + event.width = itemRect.right - itemRect.left; + event.height = itemRect.bottom - itemRect.top; + sendEvent (DWT.MeasureItem, event); + event.gc = null; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); + if (isDisposed () || item.isDisposed ()) return null; + if (hwndHeader !is 0) { + if (count is 0) { + if (event.x + event.width > scrollWidth) { + setScrollWidth (scrollWidth = event.x + event.width); + } + } + } + if (event.height > getItemHeight ()) setItemHeight (event.height); + } + selectionForeground = -1; + ignoreDrawForeground = ignoreDrawBackground = ignoreDrawSelection = ignoreDrawFocus = ignoreDrawHot = ignoreFullSelection = false; + if (hooks (DWT.EraseItem)) { + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if (OS.IsWindowEnabled (handle) || findImageControl () !is null) { + drawBackground (hDC, rect); + } else { + fillBackground (hDC, OS.GetBkColor (hDC), rect); + } + RECT cellRect = item.getBounds (index, true, true, true, true, true, hDC); + if (clrSortBk !is -1) { + RECT fullRect = item.getBounds (index, true, true, true, true, true, hDC); + drawBackground (hDC, fullRect, clrSortBk); + } + int nSavedDC = OS.SaveDC (hDC); + GCData data = new GCData (); + data.device = display; + if (selected && explorerTheme) { + data.foreground = OS.GetSysColor (OS.COLOR_WINDOWTEXT); + } else { + data.foreground = OS.GetTextColor (hDC); + } + data.background = OS.GetBkColor (hDC); + if (!selected) { + if (clrText !is -1) data.foreground = clrText; + if (clrTextBk !is -1) data.background = clrTextBk; + } + data.uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if (hFont !is -1) data.hFont = hFont; + GC gc = GC.win32_new (hDC, data); + Event event = new Event (); + event.index = index; + event.item = item; + event.gc = gc; + event.detail |= DWT.FOREGROUND; + if (clrTextBk !is -1) event.detail |= DWT.BACKGROUND; + if (hot) event.detail |= DWT.HOT; + if (selected) event.detail |= DWT.SELECTED; + if (!explorerTheme) { + //if ((nmcd.uItemState & OS.CDIS_FOCUS) !is 0) { + if (OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0) is nmcd.dwItemSpec) { + if (handle is OS.GetFocus ()) { + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((uiState & OS.UISF_HIDEFOCUS) is 0) event.detail |= DWT.FOCUSED; + } + } + } + event.x = cellRect.left; + event.y = cellRect.top; + event.width = cellRect.right - cellRect.left; + event.height = cellRect.bottom - cellRect.top; + gc.setClipping (event.x, event.y, event.width, event.height); + sendEvent (DWT.EraseItem, event); + event.gc = null; + int newTextClr = data.foreground; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); + if (isDisposed () || item.isDisposed ()) return null; + if (event.doit) { + ignoreDrawForeground = (event.detail & DWT.FOREGROUND) is 0; + ignoreDrawBackground = (event.detail & DWT.BACKGROUND) is 0; + ignoreDrawSelection = (event.detail & DWT.SELECTED) is 0; + ignoreDrawFocus = (event.detail & DWT.FOCUSED) is 0; + ignoreDrawHot = (event.detail & DWT.HOT) is 0; + } else { + ignoreDrawForeground = ignoreDrawBackground = ignoreDrawSelection = ignoreDrawFocus = ignoreDrawHot = true; + } + if (selected && ignoreDrawSelection) ignoreDrawHot = true; + if (!ignoreDrawBackground && clrTextBk !is -1) { + bool draw = !selected && !hot; + if (!explorerTheme && selected) draw = !ignoreDrawSelection; + if (draw) { + if (count is 0) { + if ((style & DWT.FULL_SELECTION) !is 0) { + fillBackground (hDC, clrTextBk, rect); + } else { + RECT textRect = item.getBounds (index, true, false, true, false, true, hDC); + fillBackground (hDC, clrTextBk, textRect); + } + } else { + fillBackground (hDC, clrTextBk, cellRect); + } + } + } + if (ignoreDrawSelection) ignoreFullSelection = true; + if (!ignoreDrawSelection || !ignoreDrawHot) { + if (!selected && !hot) { + selectionForeground = clrText = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT); + } + if (!explorerTheme) { + /* + * Feature in Windows. When the tree has the style + * TVS_FULLROWSELECT, the background color for the + * entire row is filled when an item is painted, + * drawing on top of any custom drawing. The fix + * is to emulate TVS_FULLROWSELECT. + */ + if ((style & DWT.FULL_SELECTION) !is 0) { + if ((style & DWT.FULL_SELECTION) !is 0 && count is 0) { + fillBackground (hDC, OS.GetBkColor (hDC), rect); + } else { + fillBackground (hDC, OS.GetBkColor (hDC), cellRect); + } + } else { + RECT textRect = item.getBounds (index, true, false, false, false, true, hDC); + fillBackground (hDC, OS.GetBkColor (hDC), textRect); + } + } + } else { + if (selected || hot) { + selectionForeground = clrText = newTextClr; + ignoreDrawSelection = ignoreDrawHot = true; + } + if (explorerTheme) { + nmcd.uItemState |= OS.CDIS_DISABLED; + /* + * Feature in Windows. On Vista only, when the text + * color is unchanged and an item is asked to draw + * disabled, it uses the disabled color. The fix is + * to modify the color so that is it no longer equal. + */ + int newColor = clrText is -1 ? getForegroundPixel () : clrText; + if (nmcd.clrText is newColor) { + nmcd.clrText |= 0x20000000; + if (nmcd.clrText is newColor) nmcd.clrText &= ~0x20000000; + } else { + nmcd.clrText = newColor; + } + OS.MoveMemory (lParam, nmcd, NMTVCUSTOMDRAW.sizeof); + } + } + if (explorerTheme) { + if (selected || (hot && ignoreDrawHot)) nmcd.uItemState &= ~OS.CDIS_HOT; + OS.MoveMemory (lParam, nmcd, NMTVCUSTOMDRAW.sizeof); + } + RECT itemRect = item.getBounds (index, true, true, false, false, false, hDC); + OS.SaveDC (hDC); + OS.SelectClipRgn (hDC, 0); + if (explorerTheme) { + itemRect.left -= EXPLORER_EXTRA; + itemRect.right += EXPLORER_EXTRA; + } + //TODO - bug in Windows selection or DWT itemRect + /*if (selected)*/ itemRect.right++; + if (linesVisible) itemRect.bottom++; + if (clipRect !is null) { + OS.IntersectClipRect (hDC, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); + } + OS.ExcludeClipRect (hDC, itemRect.left, itemRect.top, itemRect.right, itemRect.bottom); + return new LRESULT (OS.CDRF_DODEFAULT | OS.CDRF_NOTIFYPOSTPAINT); + } + /* + * Feature in Windows. When the tree has the style + * TVS_FULLROWSELECT, the background color for the + * entire row is filled when an item is painted, + * drawing on top of any custom drawing. The fix + * is to emulate TVS_FULLROWSELECT. + */ + if ((style & DWT.FULL_SELECTION) !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_FULLROWSELECT) is 0) { + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if (selected) { + fillBackground (hDC, OS.GetBkColor (hDC), rect); + } else { + if (OS.IsWindowEnabled (handle)) drawBackground (hDC, rect); + } + nmcd.uItemState &= ~OS.CDIS_FOCUS; + OS.MoveMemory (lParam, nmcd, NMTVCUSTOMDRAW.sizeof); + } + } + } + LRESULT result = null; + if (clrText is -1 && clrTextBk is -1 && hFont is -1) { + result = new LRESULT (OS.CDRF_DODEFAULT | OS.CDRF_NOTIFYPOSTPAINT); + } else { + result = new LRESULT (OS.CDRF_NEWFONT | OS.CDRF_NOTIFYPOSTPAINT); + if (hFont !is -1) OS.SelectObject (hDC, hFont); + if (OS.IsWindowEnabled (handle) && OS.IsWindowVisible (handle)) { + /* + * Feature in Windows. Windows does not fill the entire cell + * with the background color when TVS_FULLROWSELECT is not set. + * The fix is to fill the cell with the background color. + */ + if (clrTextBk !is -1) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_FULLROWSELECT) is 0) { + if (count !is 0 && hwndHeader !is 0) { + RECT rect = new RECT (); + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.left + hdItem.cxy, nmcd.bottom); + if (OS.COMCTL32_MAJOR < 6 || !OS.IsAppThemed ()) { + RECT itemRect = new RECT (); + itemRect.left = item.handle; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, itemRect) !is 0) { + rect.left = Math.min (itemRect.left, rect.right); + } + } + if ((style & DWT.FULL_SELECTION) !is 0) { + if (!selected) fillBackground (hDC, clrTextBk, rect); + } else { + if (explorerTheme) { + if (!selected && !hot) fillBackground (hDC, clrTextBk, rect); + } else { + fillBackground (hDC, clrTextBk, rect); + } + } + } else { + if ((style & DWT.FULL_SELECTION) !is 0) { + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + if (!selected) fillBackground (hDC, clrTextBk, rect); + } + } + } + } + if (!selected) { + nmcd.clrText = clrText is -1 ? getForegroundPixel () : clrText; + nmcd.clrTextBk = clrTextBk is -1 ? getBackgroundPixel () : clrTextBk; + OS.MoveMemory (lParam, nmcd, NMTVCUSTOMDRAW.sizeof); + } + } + } + if (OS.IsWindowEnabled (handle)) { + /* + * On Vista only, when an item is asked to draw disabled, + * the background of the text is not filled with the + * background color of the tree. This is true for both + * regular and full selection trees. In order to draw a + * background image, mark the item as disabled using + * CDIS_DISABLED (when not selected) and set the text + * to the regular text color to avoid drawing disabled. + */ + if (explorerTheme) { + if (findImageControl () !is null) { + if (!selected && (nmcd.uItemState & (OS.CDIS_HOT | OS.CDIS_SELECTED)) is 0) { + nmcd.uItemState |= OS.CDIS_DISABLED; + /* + * Feature in Windows. On Vista only, when the text + * color is unchanged and an item is asked to draw + * disabled, it uses the disabled color. The fix is + * to modify the color so it is no longer equal. + */ + int newColor = clrText is -1 ? getForegroundPixel () : clrText; + if (nmcd.clrText is newColor) { + nmcd.clrText |= 0x20000000; + if (nmcd.clrText is newColor) nmcd.clrText &= ~0x20000000; + } else { + nmcd.clrText = newColor; + } + OS.MoveMemory (lParam, nmcd, NMTVCUSTOMDRAW.sizeof); + if (clrTextBk !is -1) { + if ((style & DWT.FULL_SELECTION) !is 0) { + RECT rect = new RECT (); + if (count !is 0) { + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.left + hdItem.cxy, nmcd.bottom); + } else { + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + } + fillBackground (hDC, clrTextBk, rect); + } else { + RECT textRect = item.getBounds (index, true, false, true, false, true, hDC); + fillBackground (hDC, clrTextBk, textRect); + } + } + } + } + } + } else { + /* + * Feature in Windows. When the tree is disabled, it draws + * with a gray background over the sort column. The fix is + * to fill the background with the sort column color. + */ + if (clrSortBk !is -1) { + RECT rect = new RECT (); + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.left + hdItem.cxy, nmcd.bottom); + fillBackground (hDC, clrSortBk, rect); + } + } + OS.SaveDC (hDC); + if (clipRect !is null) { + int hRgn = OS.CreateRectRgn (clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); + POINT lpPoint = new POINT (); + OS.GetWindowOrgEx (hDC, lpPoint); + OS.OffsetRgn (hRgn, -lpPoint.x, -lpPoint.y); + OS.SelectClipRgn (hDC, hRgn); + OS.DeleteObject (hRgn); + } + return result; +} + +LRESULT CDDS_POSTPAINT (NMTVCUSTOMDRAW nmcd, int wParam, int lParam) { + if (ignoreCustomDraw) return null; + if (OS.IsWindowVisible (handle)) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (sortColumn !is null && sortDirection !is DWT.NONE) { + if (findImageControl () is null) { + int index = indexOf (sortColumn); + if (index !is -1) { + int top = nmcd.top; + /* + * Bug in Windows. For some reason, during a collapse, + * when TVM_GETNEXTITEM is sent with TVGN_LASTVISIBLE + * and the collapse causes the item being collapsed + * to become the last visible item in the tree, the + * message takes a long time to process. In order for + * the slowness to happen, the children of the item + * must have children. Times of up to 11 seconds have + * been observed with 23 children, each having one + * child. The fix is to use the bottom partially + * visible item rather than the last possible item + * that could be visible. + * + * NOTE: This problem only happens on Vista during + * WM_NOTIFY with NM_CUSTOMDRAW and CDDS_POSTPAINT. + */ + int hItem = 0; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + hItem = getBottomItem (); + } else { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_LASTVISIBLE, 0); + } + if (hItem !is 0) { + RECT rect = new RECT (); + rect.left = hItem; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) !is 0) { + top = rect.bottom; + } + } + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, top, nmcd.right, nmcd.bottom); + RECT headerRect = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + rect.left = headerRect.left; + rect.right = headerRect.right; + fillBackground (nmcd.hdc, getSortColumnPixel (), rect); + } + } + } + } + if (linesVisible) { + int hDC = nmcd.hdc; + if (hwndHeader !is 0) { + int x = 0; + RECT rect = new RECT (); + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + int index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, i, 0); + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + OS.SetRect (rect, x, nmcd.top, x + hdItem.cxy, nmcd.bottom); + OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_RIGHT); + x += hdItem.cxy; + } + } + int height = 0; + RECT rect = new RECT (); + /* + * Bug in Windows. For some reason, during a collapse, + * when TVM_GETNEXTITEM is sent with TVGN_LASTVISIBLE + * and the collapse causes the item being collapsed + * to become the last visible item in the tree, the + * message takes a long time to process. In order for + * the slowness to happen, the children of the item + * must have children. Times of up to 11 seconds have + * been observed with 23 children, each having one + * child. The fix is to use the bottom partially + * visible item rather than the last possible item + * that could be visible. + * + * NOTE: This problem only happens on Vista during + * WM_NOTIFY with NM_CUSTOMDRAW and CDDS_POSTPAINT. + */ + int hItem = 0; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + hItem = getBottomItem (); + } else { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_LASTVISIBLE, 0); + } + if (hItem !is 0) { + rect.left = hItem; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) !is 0) { + height = rect.bottom - rect.top; + } + } + if (height is 0) { + height = OS.SendMessage (handle, OS.TVM_GETITEMHEIGHT, 0, 0); + OS.GetClientRect (handle, rect); + OS.SetRect (rect, rect.left, rect.top, rect.right, rect.top + height); + OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); + } + while (rect.bottom < nmcd.bottom) { + int top = rect.top + height; + OS.SetRect (rect, rect.left, top, rect.right, top + height); + OS.DrawEdge (hDC, rect, OS.BDR_SUNKENINNER, OS.BF_BOTTOM); + } + } + } + return new LRESULT (OS.CDRF_DODEFAULT); +} + +LRESULT CDDS_PREPAINT (NMTVCUSTOMDRAW nmcd, int wParam, int lParam) { + if (explorerTheme) { + if ((OS.IsWindowEnabled (handle) && hooks (DWT.EraseItem)) || findImageControl () !is null) { + RECT rect = new RECT (); + OS.SetRect (rect, nmcd.left, nmcd.top, nmcd.right, nmcd.bottom); + drawBackground (nmcd.hdc, rect); + } + } + return new LRESULT (OS.CDRF_NOTIFYITEMDRAW | OS.CDRF_NOTIFYPOSTPAINT); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + if (handle is 0) return 0; + if (hwndParent !is 0 && hwnd is hwndParent) { + return OS.DefWindowProc (hwnd, msg, wParam, lParam); + } + if (hwndHeader !is 0 && hwnd is hwndHeader) { + return OS.CallWindowProc (HeaderProc, hwnd, msg, wParam, lParam); + } + switch (msg) { + case OS.WM_SETFOCUS: { + /* + * Feature in Windows. When a tree control processes WM_SETFOCUS, + * if no item is selected, the first item in the tree is selected. + * This is unexpected and might clear the previous selection. + * The fix is to detect that there is no selection and set it to + * the first visible item in the tree. If the item was not selected, + * only the focus is assigned. + */ + if ((style & DWT.SINGLE) !is 0) break; + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem is 0) { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + if (hItem !is 0) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + hSelect = hItem; + ignoreDeselect = ignoreSelect = lockSelection = true; + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hItem); + ignoreDeselect = ignoreSelect = lockSelection = false; + hSelect = 0; + if ((tvItem.state & OS.TVIS_SELECTED) is 0) { + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + } + break; + } + } + int hItem = 0; + bool redraw = false; + switch (msg) { + /* Keyboard messages */ + case OS.WM_KEYDOWN: + if (wParam is OS.VK_CONTROL || wParam is OS.VK_SHIFT) break; + //FALL THROUGH + case OS.WM_CHAR: + case OS.WM_IME_CHAR: + case OS.WM_KEYUP: + case OS.WM_SYSCHAR: + case OS.WM_SYSKEYDOWN: + case OS.WM_SYSKEYUP: + //FALL THROUGH + + /* Scroll messages */ + case OS.WM_HSCROLL: + case OS.WM_VSCROLL: + //FALL THROUGH + + /* Resize messages */ + case OS.WM_SIZE: + redraw = findImageControl () !is null && drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + //FALL THROUGH + + /* Mouse messages */ + case OS.WM_LBUTTONDBLCLK: + case OS.WM_LBUTTONDOWN: + case OS.WM_LBUTTONUP: + case OS.WM_MBUTTONDBLCLK: + case OS.WM_MBUTTONDOWN: + case OS.WM_MBUTTONUP: + case OS.WM_MOUSEHOVER: + case OS.WM_MOUSELEAVE: + case OS.WM_MOUSEMOVE: + case OS.WM_MOUSEWHEEL: + case OS.WM_RBUTTONDBLCLK: + case OS.WM_RBUTTONDOWN: + case OS.WM_RBUTTONUP: + case OS.WM_XBUTTONDBLCLK: + case OS.WM_XBUTTONDOWN: + case OS.WM_XBUTTONUP: + //FALL THROUGH + + /* Other messages */ + case OS.WM_SETFONT: + case OS.WM_TIMER: { + if (findImageControl () !is null) { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + } + break; + } + } + int code = OS.CallWindowProc (TreeProc, hwnd, msg, wParam, lParam); + switch (msg) { + /* Keyboard messages */ + case OS.WM_KEYDOWN: + if (wParam is OS.VK_CONTROL || wParam is OS.VK_SHIFT) break; + //FALL THROUGH + case OS.WM_CHAR: + case OS.WM_IME_CHAR: + case OS.WM_KEYUP: + case OS.WM_SYSCHAR: + case OS.WM_SYSKEYDOWN: + case OS.WM_SYSKEYUP: + //FALL THROUGH + + /* Scroll messages */ + case OS.WM_HSCROLL: + case OS.WM_VSCROLL: + //FALL THROUGH + + /* Resize messages */ + case OS.WM_SIZE: + if (redraw) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, null, true); + if (hwndHeader !is 0) OS.InvalidateRect (hwndHeader, null, true); + } + //FALL THROUGH + + /* Mouse messages */ + case OS.WM_LBUTTONDBLCLK: + case OS.WM_LBUTTONDOWN: + case OS.WM_LBUTTONUP: + case OS.WM_MBUTTONDBLCLK: + case OS.WM_MBUTTONDOWN: + case OS.WM_MBUTTONUP: + case OS.WM_MOUSEHOVER: + case OS.WM_MOUSELEAVE: + case OS.WM_MOUSEMOVE: + case OS.WM_MOUSEWHEEL: + case OS.WM_RBUTTONDBLCLK: + case OS.WM_RBUTTONDOWN: + case OS.WM_RBUTTONUP: + case OS.WM_XBUTTONDBLCLK: + case OS.WM_XBUTTONDOWN: + case OS.WM_XBUTTONUP: + //FALL THROUGH + + /* Other messages */ + case OS.WM_SETFONT: + case OS.WM_TIMER: { + if (findImageControl () !is null) { + if (hItem !is OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0)) { + OS.InvalidateRect (handle, null, true); + } + } + updateScrollBar (); + break; + } + + case OS.WM_PAINT: + painted = true; + break; + } + return code; +} + +void checkBuffered () { + super.checkBuffered (); + if ((style & DWT.VIRTUAL) !is 0) { + style |= DWT.DOUBLE_BUFFERED; + OS.SendMessage (handle, OS.TVM_SETSCROLLTIME, 0, 0); + } + if (EXPLORER_THEME) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + int exStyle = OS.SendMessage (handle, OS.TVM_GETEXTENDEDSTYLE, 0, 0); + if ((exStyle & OS.TVS_EX_DOUBLEBUFFER) !is 0) style |= DWT.DOUBLE_BUFFERED; + } + } +} + +bool checkData (TreeItem item, bool redraw) { + if ((style & DWT.VIRTUAL) is 0) return true; + TreeItem parentItem = item.getParentItem (); + return checkData (item, parentItem is null ? indexOf (item) : parentItem.indexOf (item), redraw); +} + +bool checkData (TreeItem item, int index, bool redraw) { + if ((style & DWT.VIRTUAL) is 0) return true; + if (!item.cached) { + item.cached = true; + Event event = new Event (); + event.item = item; + event.index = index; + TreeItem oldItem = currentItem; + currentItem = item; + sendEvent (DWT.SetData, event); + //widget could be disposed at this point + currentItem = oldItem; + if (isDisposed () || item.isDisposed ()) return false; + if (redraw) item.redraw (); + } + return true; +} + +bool checkHandle (int hwnd) { + return hwnd is handle || (hwndParent !is 0 && hwnd is hwndParent) || (hwndHeader !is 0 && hwnd is hwndHeader); +} + +bool checkScroll (int hItem) { + /* + * Feature in Windows. If redraw is turned off using WM_SETREDRAW + * and a tree item that is not a child of the first root is selected or + * scrolled using TVM_SELECTITEM or TVM_ENSUREVISIBLE, then scrolling + * does not occur. The fix is to detect this case, and make sure + * that redraw is temporarily enabled. To avoid flashing, DefWindowProc() + * is called to disable redrawing. + * + * NOTE: The code that actually works around the problem is in the + * callers of this method. + */ + if (drawCount is 0) return false; + int hRoot = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + int hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hItem); + while (hParent !is hRoot && hParent !is 0) { + hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hParent); + } + return hParent is 0; +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +/** + * Clears the item at the given zero-relative index in the receiver. + * The text, icon and other attributes of the item are set to the default + * value. If the tree was created with the <code>DWT.VIRTUAL</code> style, + * these attributes are requested again as needed. + * + * @param index the index of the item to clear + * @param all <code>true</code> if all child items of the indexed item should be + * cleared recursively, and <code>false</code> otherwise + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#VIRTUAL + * @see DWT#SetData + * + * @since 3.2 + */ +public void clear (int index, bool all) { + checkWidget (); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + if (hItem is 0) error (DWT.ERROR_INVALID_RANGE); + hItem = findItem (hItem, index); + if (hItem is 0) error (DWT.ERROR_INVALID_RANGE); + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + clear (hItem, tvItem); + if (all) { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + clearAll (hItem, tvItem, all); + } +} + +void clear (int hItem, TVITEM tvItem) { + tvItem.hItem = hItem; + TreeItem item = null; + if (OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem) !is 0) { + item = tvItem.lParam !is -1 ? items [tvItem.lParam] : null; + } + if (item !is null) { + item.clear (); + item.redraw (); + } +} + +/** + * Clears all the items in the receiver. The text, icon and other + * attributes of the items are set to their default values. If the + * tree was created with the <code>DWT.VIRTUAL</code> style, these + * attributes are requested again as needed. + * + * @param all <code>true</code> if all child items should be cleared + * recursively, and <code>false</code> otherwise + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#VIRTUAL + * @see DWT#SetData + * + * @since 3.2 + */ +public void clearAll (bool all) { + checkWidget (); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + if (hItem is 0) return; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + clearAll (hItem, tvItem, all); +} + +void clearAll (int hItem, TVITEM tvItem, bool all) { + while (hItem !is 0) { + clear (hItem, tvItem); + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + if (all) clearAll (hFirstItem, tvItem, all); + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + } +} + +int CompareFunc (int lParam1, int lParam2, int lParamSort) { + TreeItem item1 = items [lParam1], item2 = items [lParam2]; + String text1 = item1.getText (lParamSort), text2 = item2.getText (lParamSort); + return sortDirection is DWT.UP ? text1.compareTo (text2) : text2.compareTo (text1); +} + +public Point computeSize (int wHint, int hHint, bool changed) { + checkWidget (); + int width = 0, height = 0; + if (hwndHeader !is 0) { + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, i, hdItem); + width += hdItem.cxy; + } + RECT rect = new RECT (); + OS.GetWindowRect (hwndHeader, rect); + height += rect.bottom - rect.top; + } + RECT rect = new RECT (); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + while (hItem !is 0) { + if ((style & DWT.VIRTUAL) is 0 && !painted) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; + tvItem.hItem = hItem; + tvItem.pszText = OS.LPSTR_TEXTCALLBACK; + ignoreCustomDraw = true; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + ignoreCustomDraw = false; + } + rect.left = hItem; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect) !is 0) { + width = Math.max (width, rect.right); + height += rect.bottom - rect.top; + } + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + } + if (width is 0) width = DEFAULT_WIDTH; + if (height is 0) height = DEFAULT_HEIGHT; + if (wHint !is DWT.DEFAULT) width = wHint; + if (hHint !is DWT.DEFAULT) height = hHint; + int border = getBorderWidth (); + width += border * 2; + height += border * 2; + if ((style & DWT.V_SCROLL) !is 0) { + width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); + } + if ((style & DWT.H_SCROLL) !is 0) { + height += OS.GetSystemMetrics (OS.SM_CYHSCROLL); + } + return new Point (width, height); +} + +void createHandle () { + super.createHandle (); + state &= ~(CANVAS | THEME_BACKGROUND); + + /* Use the Explorer theme */ + if (EXPLORER_THEME) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + explorerTheme = true; + OS.SetWindowTheme (handle, Display.EXPLORER, null); + int bits = OS.TVS_EX_DOUBLEBUFFER | OS.TVS_EX_FADEINOUTEXPANDOS | OS.TVS_EX_RICHTOOLTIP; + if ((style & DWT.FULL_SELECTION) is 0) bits |= OS.TVS_EX_AUTOHSCROLL; + OS.SendMessage (handle, OS.TVM_SETEXTENDEDSTYLE, 0, bits); + /* + * Bug in Windows. When the tree is using the explorer + * theme, it does not use COLOR_WINDOW_TEXT for the + * default foreground color. The fix is to explicitly + * set the foreground. + */ + setForegroundPixel (-1); + } + } + + /* + * Feature in Windows. In version 5.8 of COMCTL32.DLL, + * if the font is changed for an item, the bounds for the + * item are not updated, causing the text to be clipped. + * The fix is to detect the version of COMCTL32.DLL, and + * if it is one of the versions with the problem, then + * use version 5.00 of the control (a version that does + * not have the problem). This is the recommended work + * around from the MSDN. + */ + if (!OS.IsWinCE) { + if (OS.COMCTL32_MAJOR < 6) { + OS.SendMessage (handle, OS.CCM_SETVERSION, 5, 0); + } + } + + /* Set the checkbox image list */ + if ((style & DWT.CHECK) !is 0) setCheckboxImageList (); + + /* + * Feature in Windows. When the control is created, + * it does not use the default system font. A new HFONT + * is created and destroyed when the control is destroyed. + * This means that a program that queries the font from + * this control, uses the font in another control and then + * destroys this control will have the font unexpectedly + * destroyed in the other control. The fix is to assign + * the font ourselves each time the control is created. + * The control will not destroy a font that it did not + * create. + */ + int hFont = OS.GetStockObject (OS.SYSTEM_FONT); + OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0); +} + +void createHeaderToolTips () { + if (OS.IsWinCE) return; + if (headerToolTipHandle !is 0) return; + headerToolTipHandle = OS.CreateWindowEx ( + 0, + new TCHAR (0, OS.TOOLTIPS_CLASS, true), + null, + 0, + OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0, + handle, + 0, + OS.GetModuleHandle (null), + null); + if (headerToolTipHandle is 0) error (DWT.ERROR_NO_HANDLES); + /* + * Feature in Windows. Despite the fact that the + * tool tip text contains \r\n, the tooltip will + * not honour the new line unless TTM_SETMAXTIPWIDTH + * is set. The fix is to set TTM_SETMAXTIPWIDTH to + * a large value. + */ + OS.SendMessage (headerToolTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); +} + +void createItem (TreeColumn column, int index) { + if (hwndHeader is 0) createParent (); + int columnCount = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index <= columnCount)) error (DWT.ERROR_INVALID_RANGE); + if (columnCount is columns.length) { + TreeColumn [] newColumns = new TreeColumn [columns.length + 4]; + System.arraycopy (columns, 0, newColumns, 0, columns.length); + columns = newColumns; + } + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null) { + String [] strings = item.strings; + if (strings !is null) { + String [] temp = new String [columnCount + 1]; + System.arraycopy (strings, 0, temp, 0, index); + System.arraycopy (strings, index, temp, index + 1, columnCount - index); + item.strings = temp; + } + Image [] images = item.images; + if (images !is null) { + Image [] temp = new Image [columnCount + 1]; + System.arraycopy (images, 0, temp, 0, index); + System.arraycopy (images, index, temp, index + 1, columnCount - index); + item.images = temp; + } + if (index is 0) { + if (columnCount !is 0) { + if (strings is null) { + item.strings = new String [columnCount + 1]; + item.strings [1] = item.text; + } + item.text = ""; + if (images is null) { + item.images = new Image [columnCount + 1]; + item.images [1] = item.image; + } + item.image = null; + } + } + if (item.cellBackground !is null) { + int [] cellBackground = item.cellBackground; + int [] temp = new int [columnCount + 1]; + System.arraycopy (cellBackground, 0, temp, 0, index); + System.arraycopy (cellBackground, index, temp, index + 1, columnCount - index); + temp [index] = -1; + item.cellBackground = temp; + } + if (item.cellForeground !is null) { + int [] cellForeground = item.cellForeground; + int [] temp = new int [columnCount + 1]; + System.arraycopy (cellForeground, 0, temp, 0, index); + System.arraycopy (cellForeground, index, temp, index + 1, columnCount - index); + temp [index] = -1; + item.cellForeground = temp; + } + if (item.cellFont !is null) { + int [] cellFont = item.cellFont; + int [] temp = new int [columnCount + 1]; + System.arraycopy (cellFont, 0, temp, 0, index); + System.arraycopy (cellFont, index, temp, index + 1, columnCount- index); + temp [index] = -1; + item.cellFont = temp; + } + } + } + System.arraycopy (columns, index, columns, index + 1, columnCount - index); + columns [index] = column; + + /* + * Bug in Windows. For some reason, when HDM_INSERTITEM + * is used to insert an item into a header without text, + * if is not possible to set the text at a later time. + * The fix is to insert the item with an empty string. + */ + int hHeap = OS.GetProcessHeap (); + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, TCHAR.sizeof); + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_TEXT | OS.HDI_FORMAT; + hdItem.pszText = pszText; + if ((column.style & DWT.LEFT) is DWT.LEFT) hdItem.fmt = OS.HDF_LEFT; + if ((column.style & DWT.CENTER) is DWT.CENTER) hdItem.fmt = OS.HDF_CENTER; + if ((column.style & DWT.RIGHT) is DWT.RIGHT) hdItem.fmt = OS.HDF_RIGHT; + OS.SendMessage (hwndHeader, OS.HDM_INSERTITEM, index, hdItem); + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + + /* When the first column is created, hide the horizontal scroll bar */ + if (columnCount is 0) { + scrollWidth = 0; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bits |= OS.TVS_NOHSCROLL; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + /* + * Bug in Windows. When TVS_NOHSCROLL is set after items + * have been inserted into the tree, Windows shows the + * scroll bar. The fix is to check for this case and + * explicitly hide the scroll bar explicitly. + */ + int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); + if (count !is 0) { + if (!OS.IsWinCE) OS.ShowScrollBar (handle, OS.SB_HORZ, false); + } + } + setScrollWidth (); + updateImageList (); + updateScrollBar (); + + /* Redraw to hide the items when the first column is created */ + if (columnCount is 0 && OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0) !is 0) { + OS.InvalidateRect (handle, null, true); + } + + /* Add the tool tip item for the header */ + if (headerToolTipHandle !is 0) { + RECT rect = new RECT (); + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, rect) !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.uFlags = OS.TTF_SUBCLASS; + lpti.hwnd = hwndHeader; + lpti.uId = column.id = display.nextToolTipId++; + lpti.left = rect.left; + lpti.top = rect.top; + lpti.right = rect.right; + lpti.bottom = rect.bottom; + lpti.lpszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (headerToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); + } + } +} + +void createItem (TreeItem item, int hParent, int hInsertAfter, int hItem) { + int id = -1; + if (item !is null) { + id = lastID < items.length ? lastID : 0; + while (id < items.length && items [id] !is null) id++; + if (id is items.length) { + /* + * Grow the array faster when redraw is off or the + * table is not visible. When the table is painted, + * the items array is resized to be smaller to reduce + * memory usage. + */ + int length = 0; + if (drawCount is 0 && OS.IsWindowVisible (handle)) { + length = items.length + 4; + } else { + shrink = true; + length = Math.max (4, items.length * 3 / 2); + } + TreeItem [] newItems = new TreeItem [length]; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; + } + lastID = id + 1; + } + int hNewItem = 0; + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hParent); + bool fixParent = hFirstItem is 0; + if (hItem is 0) { + TVINSERTSTRUCT tvInsert = new TVINSERTSTRUCT (); + tvInsert.hParent = hParent; + tvInsert.hInsertAfter = hInsertAfter; + tvInsert.lParam = id; + tvInsert.pszText = OS.LPSTR_TEXTCALLBACK; + tvInsert.iImage = tvInsert.iSelectedImage = OS.I_IMAGECALLBACK; + tvInsert.mask = OS.TVIF_TEXT | OS.TVIF_IMAGE | OS.TVIF_SELECTEDIMAGE | OS.TVIF_HANDLE | OS.TVIF_PARAM; + if ((style & DWT.CHECK) !is 0) { + tvInsert.mask = tvInsert.mask | OS.TVIF_STATE; + tvInsert.state = 1 << 12; + tvInsert.stateMask = OS.TVIS_STATEIMAGEMASK; + } + ignoreCustomDraw = true; + hNewItem = OS.SendMessage (handle, OS.TVM_INSERTITEM, 0, tvInsert); + ignoreCustomDraw = false; + if (hNewItem is 0) error (DWT.ERROR_ITEM_NOT_ADDED); + /* + * This code is intentionally commented. + */ +// if (hParent !is 0) { +// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); +// bits |= OS.TVS_LINESATROOT; +// OS.SetWindowLong (handle, OS.GWL_STYLE, bits); +// } + } else { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + tvItem.hItem = hNewItem = hItem; + tvItem.lParam = id; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + if (item !is null) { + item.handle = hNewItem; + items [id] = item; + } + if (hFirstItem is 0) { + switch (hInsertAfter) { + case OS.TVI_FIRST: + case OS.TVI_LAST: + hFirstIndexOf = hLastIndexOf = hFirstItem = hNewItem; + itemCount = lastIndexOf = 0; + } + } + if (hFirstItem is hFirstIndexOf && itemCount !is -1) itemCount++; + if (hItem is 0) { + /* + * Bug in Windows. When a child item is added to a parent item + * that has no children outside of WM_NOTIFY with control code + * TVN_ITEMEXPANDED, the tree widget does not redraw the + / - + * indicator. The fix is to detect the case when the first + * child is added to a visible parent item and redraw the parent. + */ + if (fixParent) { + if (drawCount is 0 && OS.IsWindowVisible (handle)) { + RECT rect = new RECT (); + rect.left = hParent; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) !is 0) { + OS.InvalidateRect (handle, rect, true); + } + } + } + /* + * Bug in Windows. When a new item is added while Windows + * is requesting data a tree item using TVN_GETDISPINFO, + * outstanding damage for items that are below the new item + * is not scrolled. The fix is to explicitly damage the + * new area. + */ + if ((style & DWT.VIRTUAL) !is 0) { + if (currentItem !is null) { + RECT rect = new RECT (); + rect.left = hNewItem; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) !is 0) { + RECT damageRect = new RECT (); + bool damaged = OS.GetUpdateRect (handle, damageRect, true); + if (damaged && damageRect.top < rect.bottom) { + if (OS.IsWinCE) { + OS.OffsetRect (damageRect, 0, rect.bottom - rect.top); + OS.InvalidateRect (handle, damageRect, true); + } else { + int rgn = OS.CreateRectRgn (0, 0, 0, 0); + int result = OS.GetUpdateRgn (handle, rgn, true); + if (result !is OS.NULLREGION) { + OS.OffsetRgn (rgn, 0, rect.bottom - rect.top); + OS.InvalidateRgn (handle, rgn, true); + } + OS.DeleteObject (rgn); + } + } + } + } + } + updateScrollBar (); + } +} + +void createItemToolTips () { + if (OS.IsWinCE) return; + if (itemToolTipHandle !is 0) return; + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bits |= OS.TVS_NOTOOLTIPS; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + itemToolTipHandle = OS.CreateWindowEx ( + 0, + new TCHAR (0, OS.TOOLTIPS_CLASS, true), + null, + 0, + OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0, + handle, + 0, + OS.GetModuleHandle (null), + null); + if (itemToolTipHandle is 0) error (DWT.ERROR_NO_HANDLES); + /* + * Feature in Windows. Despite the fact that the + * tool tip text contains \r\n, the tooltip will + * not honour the new line unless TTM_SETMAXTIPWIDTH + * is set. The fix is to set TTM_SETMAXTIPWIDTH to + * a large value. + */ + OS.SendMessage (itemToolTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF); + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.hwnd = handle; + lpti.uId = handle; + lpti.uFlags = OS.TTF_SUBCLASS | OS.TTF_TRANSPARENT; + lpti.lpszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (itemToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); +} + +void createParent () { + forceResize (); + RECT rect = new RECT (); + OS.GetWindowRect (handle, rect); + OS.MapWindowPoints (0, parent.handle, rect, 2); + int oldStyle = OS.GetWindowLong (handle, OS.GWL_STYLE); + int newStyle = super.widgetStyle () & ~OS.WS_VISIBLE; + if ((oldStyle & OS.WS_DISABLED) !is 0) newStyle |= OS.WS_DISABLED; +// if ((oldStyle & OS.WS_VISIBLE) !is 0) newStyle |= OS.WS_VISIBLE; + hwndParent = OS.CreateWindowEx ( + super.widgetExtStyle (), + super.windowClass (), + null, + newStyle, + rect.left, + rect.top, + rect.right - rect.left, + rect.bottom - rect.top, + parent.handle, + 0, + OS.GetModuleHandle (null), + null); + if (hwndParent is 0) error (DWT.ERROR_NO_HANDLES); + OS.SetWindowLong (hwndParent, OS.GWL_ID, hwndParent); + int bits = 0; + if (OS.WIN32_VERSION >= OS.VERSION (4, 10)) { + bits |= OS.WS_EX_NOINHERITLAYOUT; + if ((style & DWT.RIGHT_TO_LEFT) !is 0) bits |= OS.WS_EX_LAYOUTRTL; + } + hwndHeader = OS.CreateWindowEx ( + bits, + HeaderClass, + null, + OS.HDS_BUTTONS | OS.HDS_FULLDRAG | OS.HDS_DRAGDROP | OS.HDS_HIDDEN | OS.WS_CHILD | OS.WS_CLIPSIBLINGS, + 0, 0, 0, 0, + hwndParent, + 0, + OS.GetModuleHandle (null), + null); + if (hwndHeader is 0) error (DWT.ERROR_NO_HANDLES); + OS.SetWindowLong (hwndHeader, OS.GWL_ID, hwndHeader); + if (OS.IsDBLocale) { + int hIMC = OS.ImmGetContext (handle); + OS.ImmAssociateContext (hwndParent, hIMC); + OS.ImmAssociateContext (hwndHeader, hIMC); + OS.ImmReleaseContext (handle, hIMC); + } + //This code is intentionally commented +// if (!OS.IsPPC) { +// if ((style & DWT.BORDER) !is 0) { +// int oldExStyle = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); +// oldExStyle &= ~OS.WS_EX_CLIENTEDGE; +// OS.SetWindowLong (handle, OS.GWL_EXSTYLE, oldExStyle); +// } +// } + int hFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (hFont !is 0) OS.SendMessage (hwndHeader, OS.WM_SETFONT, hFont, 0); + int hwndInsertAfter = OS.GetWindow (handle, OS.GW_HWNDPREV); + int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; + SetWindowPos (hwndParent, hwndInsertAfter, 0, 0, 0, 0, flags); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE | OS.SIF_PAGE; + OS.GetScrollInfo (hwndParent, OS.SB_HORZ, info); + info.nPage = info.nMax + 1; + OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); + OS.GetScrollInfo (hwndParent, OS.SB_VERT, info); + info.nPage = info.nMax + 1; + OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); + customDraw = true; + deregister (); + if ((oldStyle & OS.WS_VISIBLE) !is 0) { + OS.ShowWindow (hwndParent, OS.SW_SHOW); + } + int hwndFocus = OS.GetFocus (); + if (hwndFocus is handle) OS.SetFocus (hwndParent); + OS.SetParent (handle, hwndParent); + if (hwndFocus is handle) OS.SetFocus (handle); + register (); + subclass (); + createItemToolTips (); +} + +void createWidget () { + super.createWidget (); + items = new TreeItem [4]; + columns = new TreeColumn [4]; + itemCount = -1; +} + +int defaultBackground () { + return OS.GetSysColor (OS.COLOR_WINDOW); +} + +void deregister () { + super.deregister (); + if (hwndParent !is 0) display.removeControl (hwndParent); + if (hwndHeader !is 0) display.removeControl (hwndHeader); +} + +void deselect (int hItem, TVITEM tvItem, int hIgnoreItem) { + while (hItem !is 0) { + if (hItem !is hIgnoreItem) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + deselect (hFirstItem, tvItem, hIgnoreItem); + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + } +} + +/** + * Deselects all selected items in the receiver. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void deselectAll () { + checkWidget (); + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_SELECTED; + if ((style & DWT.SINGLE) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem !is 0) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } else { + int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); + if ((style & DWT.VIRTUAL) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + deselect (hItem, tvItem, 0); + } else { + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null) { + tvItem.hItem = item.handle; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); + } +} + +void destroyItem (TreeColumn column) { + if (hwndHeader is 0) error (DWT.ERROR_ITEM_NOT_REMOVED); + int columnCount = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + int index = 0; + while (index < columnCount) { + if (columns [index] is column) break; + index++; + } + int [] oldOrder = new int [columnCount]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, columnCount, oldOrder); + int orderIndex = 0; + while (orderIndex < columnCount) { + if (oldOrder [orderIndex] is index) break; + orderIndex++; + } + RECT headerRect = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + if (OS.SendMessage (hwndHeader, OS.HDM_DELETEITEM, index, 0) is 0) { + error (DWT.ERROR_ITEM_NOT_REMOVED); + } + System.arraycopy (columns, index + 1, columns, index, --columnCount - index); + columns [columnCount] = null; + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null) { + if (columnCount is 0) { + item.strings = null; + item.images = null; + item.cellBackground = null; + item.cellForeground = null; + item.cellFont = null; + } else { + if (item.strings !is null) { + String [] strings = item.strings; + if (index is 0) { + item.text = strings [1] !is null ? strings [1] : ""; + } + String [] temp = new String [columnCount]; + System.arraycopy (strings, 0, temp, 0, index); + System.arraycopy (strings, index + 1, temp, index, columnCount - index); + item.strings = temp; + } else { + if (index is 0) item.text = ""; + } + if (item.images !is null) { + Image [] images = item.images; + if (index is 0) item.image = images [1]; + Image [] temp = new Image [columnCount]; + System.arraycopy (images, 0, temp, 0, index); + System.arraycopy (images, index + 1, temp, index, columnCount - index); + item.images = temp; + } else { + if (index is 0) item.image = null; + } + if (item.cellBackground !is null) { + int [] cellBackground = item.cellBackground; + int [] temp = new int [columnCount]; + System.arraycopy (cellBackground, 0, temp, 0, index); + System.arraycopy (cellBackground, index + 1, temp, index, columnCount - index); + item.cellBackground = temp; + } + if (item.cellForeground !is null) { + int [] cellForeground = item.cellForeground; + int [] temp = new int [columnCount]; + System.arraycopy (cellForeground, 0, temp, 0, index); + System.arraycopy (cellForeground, index + 1, temp, index, columnCount - index); + item.cellForeground = temp; + } + if (item.cellFont !is null) { + int [] cellFont = item.cellFont; + int [] temp = new int [columnCount]; + System.arraycopy (cellFont, 0, temp, 0, index); + System.arraycopy (cellFont, index + 1, temp, index, columnCount - index); + item.cellFont = temp; + } + } + } + } + + /* + * When the last column is deleted, show the horizontal + * scroll bar. Otherwise, left align the first column + * and redraw the columns to the right. + */ + if (columnCount is 0) { + scrollWidth = 0; + if (!hooks (DWT.MeasureItem)) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + bits &= ~OS.TVS_NOHSCROLL; + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); + OS.InvalidateRect (handle, null, true); + } + } else { + if (index is 0) { + columns [0].style &= ~(DWT.LEFT | DWT.RIGHT | DWT.CENTER); + columns [0].style |= DWT.LEFT; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + hdItem.fmt &= ~OS.HDF_JUSTIFYMASK; + hdItem.fmt |= OS.HDF_LEFT; + OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); + } + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + rect.left = headerRect.left; + OS.InvalidateRect (handle, rect, true); + } + setScrollWidth (); + updateImageList (); + updateScrollBar (); + if (columnCount !is 0) { + int [] newOrder = new int [columnCount]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, columnCount, newOrder); + TreeColumn [] newColumns = new TreeColumn [columnCount - orderIndex]; + for (int i=orderIndex; i<newOrder.length; i++) { + newColumns [i - orderIndex] = columns [newOrder [i]]; + newColumns [i - orderIndex].updateToolTip (newOrder [i]); + } + for (int i=0; i<newColumns.length; i++) { + if (!newColumns [i].isDisposed ()) { + newColumns [i].sendEvent (DWT.Move); + } + } + } + + /* Remove the tool tip item for the header */ + if (headerToolTipHandle !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.uId = column.id; + lpti.hwnd = hwndHeader; + OS.SendMessage (headerToolTipHandle, OS.TTM_DELTOOL, 0, lpti); + } +} + +void destroyItem (TreeItem item, int hItem) { + hFirstIndexOf = hLastIndexOf = 0; + itemCount = -1; + /* + * Feature in Windows. When an item is removed that is not + * visible in the tree because it belongs to a collapsed branch, + * Windows redraws the tree causing a flash for each item that + * is removed. The fix is to detect whether the item is visible, + * force the widget to be fully painted, turn off redraw, remove + * the item and validate the damage caused by the removing of + * the item. + * + * NOTE: This fix is not necessary when double buffering and + * can cause problems for virtual trees due to the call to + * UpdateWindow() that flushes outstanding WM_PAINT events, + * allowing application code to add or remove items during + * this remove operation. + */ + int hParent = 0; + bool fixRedraw = false; + if ((style & DWT.DOUBLE_BUFFERED) is 0) { + if (drawCount is 0 && OS.IsWindowVisible (handle)) { + RECT rect = new RECT (); + rect.left = hItem; + fixRedraw = OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) is 0; + } + } + if (fixRedraw) { + hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hItem); + OS.UpdateWindow (handle); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + /* + * This code is intentionally commented. + */ +// OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } + if ((style & DWT.MULTI) !is 0) { + ignoreDeselect = ignoreSelect = lockSelection = true; + } + + /* + * Feature in Windows. When an item is deleted and a tool tip + * is showing, Window requests the new text for the new item + * that is under the cursor right away. This means that when + * multiple items are deleted, the tool tip flashes, showing + * each new item in the tool tip as it is scrolled into view. + * The fix is to hide tool tips when any item is deleted. + * + * NOTE: This only happens on Vista. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + int hwndToolTip = OS.SendMessage (handle, OS.TVM_GETTOOLTIPS, 0, 0); + if (hwndToolTip !is 0) OS.SendMessage (hwndToolTip, OS.TTM_POP, 0 ,0); + } + + shrink = ignoreShrink = true; + OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, hItem); + ignoreShrink = false; + if ((style & DWT.MULTI) !is 0) { + ignoreDeselect = ignoreSelect = lockSelection = false; + } + if (fixRedraw) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.ValidateRect (handle, null); + /* + * If the item that was deleted was the last child of a tree item that + * is visible, redraw the parent item to force the + / - to be updated. + */ + if (OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hParent) is 0) { + RECT rect = new RECT (); + rect.left = hParent; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) !is 0) { + OS.InvalidateRect (handle, rect, true); + } + } + } + int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); + if (count is 0) { + if (imageList !is null) { + OS.SendMessage (handle, OS.TVM_SETIMAGELIST, 0, 0); + display.releaseImageList (imageList); + } + imageList = null; + if (hwndParent is 0 && !linesVisible) { + if (!hooks (DWT.MeasureItem) && !hooks (DWT.EraseItem) && !hooks (DWT.PaintItem)) { + customDraw = false; + } + } + items = new TreeItem [4]; + scrollWidth = 0; + setScrollWidth (); + } + updateScrollBar (); +} + +void enableDrag (bool enabled) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if (enabled && hooks (DWT.DragDetect)) { + bits &= ~OS.TVS_DISABLEDRAGDROP; + } else { + bits |= OS.TVS_DISABLEDRAGDROP; + } + OS.SetWindowLong (handle, OS.GWL_STYLE, bits); +} + +void enableWidget (bool enabled) { + super.enableWidget (enabled); + /* + * Feature in Windows. When a tree is given a background color + * using TVM_SETBKCOLOR and the tree is disabled, Windows draws + * the tree using the background color rather than the disabled + * colors. This is different from the table which draws grayed. + * The fix is to set the default background color while the tree + * is disabled and restore it when enabled. + */ + Control control = findBackgroundControl (); + /* + * Bug in Windows. On Vista only, Windows does not draw using + * the background color when the tree is disabled. The fix is + * to set the default color, even when the color has not been + * changed, causing Windows to draw correctly. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + if (control is null) control = this; + } + if (control !is null) { + if (control.backgroundImage is null) { + _setBackgroundPixel (enabled ? control.getBackgroundPixel () : -1); + } + } + if (hwndParent !is 0) OS.EnableWindow (hwndParent, enabled); + + /* + * Feature in Windows. When the tree has the style + * TVS_FULLROWSELECT, the background color for the + * entire row is filled when an item is painted, + * drawing on top of the sort column color. The fix + * is to clear TVS_FULLROWSELECT when a their is + * as sort column. + */ + updateFullSelection (); +} + +int findIndex (int hFirstItem, int hItem) { + if (hFirstItem is 0) return -1; + if (hFirstItem is hFirstIndexOf) { + if (hFirstIndexOf is hItem) { + hLastIndexOf = hFirstIndexOf; + return lastIndexOf = 0; + } + if (hLastIndexOf is hItem) return lastIndexOf; + int hPrevItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hLastIndexOf); + if (hPrevItem is hItem) { + hLastIndexOf = hPrevItem; + return --lastIndexOf; + } + int hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hLastIndexOf); + if (hNextItem is hItem) { + hLastIndexOf = hNextItem; + return ++lastIndexOf; + } + int previousIndex = lastIndexOf - 1; + while (hPrevItem !is 0 && hPrevItem !is hItem) { + hPrevItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hPrevItem); + --previousIndex; + } + if (hPrevItem is hItem) { + hLastIndexOf = hPrevItem; + return lastIndexOf = previousIndex; + } + int nextIndex = lastIndexOf + 1; + while (hNextItem !is 0 && hNextItem !is hItem) { + hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hNextItem); + nextIndex++; + } + if (hNextItem is hItem) { + hLastIndexOf = hNextItem; + return lastIndexOf = nextIndex; + } + return -1; + } + int index = 0, hNextItem = hFirstItem; + while (hNextItem !is 0 && hNextItem !is hItem) { + hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hNextItem); + index++; + } + if (hNextItem is hItem) { + itemCount = -1; + hFirstIndexOf = hFirstItem; + hLastIndexOf = hNextItem; + return lastIndexOf = index; + } + return -1; +} + +Widget findItem (int hItem) { + return _getItem (hItem); +} + +int findItem (int hFirstItem, int index) { + if (hFirstItem is 0) return 0; + if (hFirstItem is hFirstIndexOf) { + if (index is 0) { + lastIndexOf = 0; + return hLastIndexOf = hFirstIndexOf; + } + if (lastIndexOf is index) return hLastIndexOf; + if (lastIndexOf - 1 is index) { + --lastIndexOf; + return hLastIndexOf = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hLastIndexOf); + } + if (lastIndexOf + 1 is index) { + lastIndexOf++; + return hLastIndexOf = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hLastIndexOf); + } + if (index < lastIndexOf) { + int previousIndex = lastIndexOf - 1; + int hPrevItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hLastIndexOf); + while (hPrevItem !is 0 && index < previousIndex) { + hPrevItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUS, hPrevItem); + --previousIndex; + } + if (index is previousIndex) { + lastIndexOf = previousIndex; + return hLastIndexOf = hPrevItem; + } + } else { + int nextIndex = lastIndexOf + 1; + int hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hLastIndexOf); + while (hNextItem !is 0 && nextIndex < index) { + hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hNextItem); + nextIndex++; + } + if (index is nextIndex) { + lastIndexOf = nextIndex; + return hLastIndexOf = hNextItem; + } + } + return 0; + } + int nextIndex = 0, hNextItem = hFirstItem; + while (hNextItem !is 0 && nextIndex < index) { + hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hNextItem); + nextIndex++; + } + if (index is nextIndex) { + itemCount = -1; + lastIndexOf = nextIndex; + hFirstIndexOf = hFirstItem; + return hLastIndexOf = hNextItem; + } + return 0; +} + +TreeItem getFocusItem () { +// checkWidget (); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + return hItem !is 0 ? _getItem (hItem) : null; +} + +/** + * Returns the width in pixels of a grid line. + * + * @return the width of a grid line in pixels + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public int getGridLineWidth () { + checkWidget (); + return GRID_WIDTH; +} + +/** + * Returns the height of the receiver's header + * + * @return the height of the header or zero if the header is not visible + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public int getHeaderHeight () { + checkWidget (); + if (hwndHeader is 0) return 0; + RECT rect = new RECT (); + OS.GetWindowRect (hwndHeader, rect); + return rect.bottom - rect.top; +} + +/** + * Returns <code>true</code> if the receiver's header is visible, + * and <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the receiver's header's visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public bool getHeaderVisible () { + checkWidget (); + if (hwndHeader is 0) return false; + int bits = OS.GetWindowLong (hwndHeader, OS.GWL_STYLE); + return (bits & OS.WS_VISIBLE) !is 0; +} + +Point getImageSize () { + if (imageList !is null) return imageList.getImageSize (); + return new Point (0, getItemHeight ()); +} + +int getBottomItem () { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + if (hItem is 0) return 0; + int index = 0, count = OS.SendMessage (handle, OS.TVM_GETVISIBLECOUNT, 0, 0); + while (index < count) { + int hNextItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); + if (hNextItem is 0) return hItem; + hItem = hNextItem; + index++; + } + return hItem; +} + +/** + * Returns the column at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * Columns are returned in the order that they were created. + * If no <code>TreeColumn</code>s were created by the programmer, + * this method will throw <code>ERROR_INVALID_RANGE</code> despite + * the fact that a single column of data may be visible in the tree. + * This occurs when the programmer uses the tree like a list, adding + * items but never creating a column. + * + * @param index the index of the column to return + * @return the column at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#getColumnOrder() + * @see Tree#setColumnOrder(int[]) + * @see TreeColumn#getMoveable() + * @see TreeColumn#setMoveable(bool) + * @see DWT#Move + * + * @since 3.1 + */ +public TreeColumn getColumn (int index) { + checkWidget (); + if (hwndHeader is 0) error (DWT.ERROR_INVALID_RANGE); + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (!(0 <= index && index < count)) error (DWT.ERROR_INVALID_RANGE); + return columns [index]; +} + +/** + * Returns the number of columns contained in the receiver. + * If no <code>TreeColumn</code>s were created by the programmer, + * this value is zero, despite the fact that visually, one column + * of items may be visible. This occurs when the programmer uses + * the tree like a list, adding items but never creating a column. + * + * @return the number of columns + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public int getColumnCount () { + checkWidget (); + if (hwndHeader is 0) return 0; + return OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); +} + +/** + * Returns an array of zero-relative integers that map + * the creation order of the receiver's items to the + * order in which they are currently being displayed. + * <p> + * Specifically, the indices of the returned array represent + * the current visual order of the items, and the contents + * of the array represent the creation order of the items. + * </p><p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the current visual order of the receiver's items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#setColumnOrder(int[]) + * @see TreeColumn#getMoveable() + * @see TreeColumn#setMoveable(bool) + * @see DWT#Move + * + * @since 3.2 + */ +public int[] getColumnOrder () { + checkWidget (); + if (hwndHeader is 0) return new int [0]; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + int [] order = new int [count]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); + return order; +} + +/** + * Returns an array of <code>TreeColumn</code>s which are the + * columns in the receiver. Columns are returned in the order + * that they were created. If no <code>TreeColumn</code>s were + * created by the programmer, the array is empty, despite the fact + * that visually, one column of items may be visible. This occurs + * when the programmer uses the tree like a list, adding items but + * never creating a column. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#getColumnOrder() + * @see Tree#setColumnOrder(int[]) + * @see TreeColumn#getMoveable() + * @see TreeColumn#setMoveable(bool) + * @see DWT#Move + * + * @since 3.1 + */ +public TreeColumn [] getColumns () { + checkWidget (); + if (hwndHeader is 0) return new TreeColumn [0]; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + TreeColumn [] result = new TreeColumn [count]; + System.arraycopy (columns, 0, result, 0, count); + return result; +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public TreeItem getItem (int index) { + checkWidget (); + if (index < 0) error (DWT.ERROR_INVALID_RANGE); + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + if (hFirstItem is 0) error (DWT.ERROR_INVALID_RANGE); + int hItem = findItem (hFirstItem, index); + if (hItem is 0) error (DWT.ERROR_INVALID_RANGE); + return _getItem (hItem); +} + +TreeItem getItem (NMTVCUSTOMDRAW nmcd) { + /* + * Bug in Windows. If the lParam field of TVITEM + * is changed during custom draw using TVM_SETITEM, + * the lItemlParam field of the NMTVCUSTOMDRAW struct + * is not updated until the next custom draw. The + * fix is to query the field from the item instead + * of using the struct. + */ + int id = nmcd.lItemlParam; + if ((style & DWT.VIRTUAL) !is 0) { + if (id is -1) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + tvItem.hItem = nmcd.dwItemSpec; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + id = tvItem.lParam; + } + } + return _getItem (nmcd.dwItemSpec, id); +} + +/** + * Returns the item at the given point in the receiver + * or null if no such item exists. The point is in the + * coordinate system of the receiver. + * <p> + * The item that is returned represents an item that could be selected by the user. + * For example, if selection only occurs in items in the first column, then null is + * returned if the point is outside of the item. + * Note that the DWT.FULL_SELECTION style hint, which specifies the selection policy, + * determines the extent of the selection. + * </p> + * + * @param point the point used to locate the item + * @return the item at the given point, or null if the point is not in a selectable item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TreeItem getItem (Point point) { + checkWidget (); + if (point is null) error (DWT.ERROR_NULL_ARGUMENT); + TVHITTESTINFO lpht = new TVHITTESTINFO (); + lpht.x = point.x; + lpht.y = point.y; + OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); + if (lpht.hItem !is 0) { + if ((style & DWT.FULL_SELECTION) !is 0 || (lpht.flags & OS.TVHT_ONITEM) !is 0) { + return _getItem (lpht.hItem); + } + } + return null; +} + +/** + * Returns the number of items contained in the receiver + * that are direct item children of the receiver. The + * number that is returned is the number of roots in the + * tree. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + if (hItem is 0) return 0; + return getItemCount (hItem); +} + +int getItemCount (int hItem) { + int count = 0, hFirstItem = hItem; + if (hItem is hFirstIndexOf) { + if (itemCount !is -1) return itemCount; + hFirstItem = hLastIndexOf; + count = lastIndexOf; + } + while (hFirstItem !is 0) { + hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hFirstItem); + count++; + } + if (hItem is hFirstIndexOf) itemCount = count; + return count; +} + +/** + * Returns the height of the area which would be used to + * display <em>one</em> of the items in the tree. + * + * @return the height of one item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemHeight () { + checkWidget (); + return OS.SendMessage (handle, OS.TVM_GETITEMHEIGHT, 0, 0); +} + +/** + * Returns a (possibly empty) array of items contained in the + * receiver that are direct item children of the receiver. These + * are the roots of the tree. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TreeItem [] getItems () { + checkWidget (); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + if (hItem is 0) return new TreeItem [0]; + return getItems (hItem); +} + +TreeItem [] getItems (int hTreeItem) { + int count = 0, hItem = hTreeItem; + while (hItem !is 0) { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + count++; + } + int index = 0; + TreeItem [] result = new TreeItem [count]; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + tvItem.hItem = hTreeItem; + /* + * Feature in Windows. In some cases an expand or collapse message + * can occur from within TVM_DELETEITEM. When this happens, the item + * being destroyed has been removed from the list of items but has not + * been deleted from the tree. The fix is to check for null items and + * remove them from the list. + */ + while (tvItem.hItem !is 0) { + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + TreeItem item = _getItem (tvItem.hItem, tvItem.lParam); + if (item !is null) result [index++] = item; + tvItem.hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, tvItem.hItem); + } + if (index !is count) { + TreeItem [] newResult = new TreeItem [index]; + System.arraycopy (result, 0, newResult, 0, index); + result = newResult; + } + return result; +} + +/** + * Returns <code>true</code> if the receiver's lines are visible, + * and <code>false</code> otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, this method + * may still indicate that it is considered visible even though + * it may not actually be showing. + * </p> + * + * @return the visibility state of the lines + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public bool getLinesVisible () { + checkWidget (); + return linesVisible; +} + +int getNextSelection (int hItem, TVITEM tvItem) { + while (hItem !is 0) { + int state = 0; + if (OS.IsWinCE) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); + } + if ((state & OS.TVIS_SELECTED) !is 0) return hItem; + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + int hSelected = getNextSelection (hFirstItem, tvItem); + if (hSelected !is 0) return hSelected; + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + } + return 0; +} + +/** + * Returns the receiver's parent item, which must be a + * <code>TreeItem</code> or null when the receiver is a + * root. + * + * @return the receiver's parent item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TreeItem getParentItem () { + checkWidget (); + return null; +} + +int getSelection (int hItem, TVITEM tvItem, TreeItem [] selection, int index, int count, bool bigSelection, bool all) { + while (hItem !is 0) { + if (OS.IsWinCE || bigSelection) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((tvItem.state & OS.TVIS_SELECTED) !is 0) { + if (selection !is null && index < selection.length) { + selection [index] = _getItem (hItem, tvItem.lParam); + } + index++; + } + } else { + int state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); + if ((state & OS.TVIS_SELECTED) !is 0) { + if (tvItem !is null && selection !is null && index < selection.length) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + selection [index] = _getItem (hItem, tvItem.lParam); + } + index++; + } + } + if (index is count) break; + if (all) { + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + if ((index = getSelection (hFirstItem, tvItem, selection, index, count, bigSelection, all)) is count) { + break; + } + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + } else { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); + } + } + return index; +} + +/** + * Returns an array of <code>TreeItem</code>s that are currently + * selected in the receiver. The order of the items is unspecified. + * An empty array indicates that no items are selected. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its selection, so modifying the array will + * not affect the receiver. + * </p> + * @return an array representing the selection + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TreeItem [] getSelection () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem is 0) return new TreeItem [0]; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM | OS.TVIF_STATE; + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((tvItem.state & OS.TVIS_SELECTED) is 0) return new TreeItem [0]; + return new TreeItem [] {_getItem (tvItem.hItem, tvItem.lParam)}; + } + int count = 0; + TreeItem [] guess = new TreeItem [(style & DWT.VIRTUAL) !is 0 ? 8 : 1]; + int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); + if ((style & DWT.VIRTUAL) !is 0) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM | OS.TVIF_STATE; + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + count = getSelection (hItem, tvItem, guess, 0, -1, false, true); + } else { + TVITEM tvItem = null; + if (OS.IsWinCE) { + tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_STATE; + } + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null) { + int hItem = item.handle, state = 0; + if (OS.IsWinCE) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); + } + if ((state & OS.TVIS_SELECTED) !is 0) { + if (count < guess.length) guess [count] = item; + count++; + } + } + } + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); + if (count is 0) return new TreeItem [0]; + if (count is guess.length) return guess; + TreeItem [] result = new TreeItem [count]; + if (count < guess.length) { + System.arraycopy (guess, 0, result, 0, count); + return result; + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM | OS.TVIF_STATE; + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + int itemCount = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); + bool bigSelection = result.length > itemCount / 2; + if (count !is getSelection (hItem, tvItem, result, 0, count, bigSelection, false)) { + getSelection (hItem, tvItem, result, 0, count, bigSelection, true); + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); + return result; +} + +/** + * Returns the number of selected items contained in the receiver. + * + * @return the number of selected items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getSelectionCount () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem is 0) return 0; + int state = 0; + if (OS.IsWinCE) { + TVITEM tvItem = new TVITEM (); + tvItem.hItem = hItem; + tvItem.mask = OS.TVIF_STATE; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); + } + return (state & OS.TVIS_SELECTED) is 0 ? 0 : 1; + } + int count = 0; + int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + TVITEM tvItem = null; + if (OS.IsWinCE) { + tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_STATE; + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); + if ((style & DWT.VIRTUAL) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + count = getSelection (hItem, tvItem, null, 0, -1, false, true); + } else { + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null) { + int hItem = item.handle, state = 0; + if (OS.IsWinCE) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); + } + if ((state & OS.TVIS_SELECTED) !is 0) count++; + } + } + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); + return count; +} + +/** + * Returns the column which shows the sort indicator for + * the receiver. The value may be null if no column shows + * the sort indicator. + * + * @return the sort indicator + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setSortColumn(TreeColumn) + * + * @since 3.2 + */ +public TreeColumn getSortColumn () { + checkWidget (); + return sortColumn; +} + +int getSortColumnPixel () { + int pixel = OS.IsWindowEnabled (handle) ? getBackgroundPixel () : OS.GetSysColor (OS.COLOR_3DFACE); + int red = pixel & 0xFF; + int green = (pixel & 0xFF00) >> 8; + int blue = (pixel & 0xFF0000) >> 16; + if (red > 240 && green > 240 && blue > 240) { + red -= 8; + green -= 8; + blue -= 8; + } else { + red = Math.min (0xFF, (red / 10) + red); + green = Math.min (0xFF, (green / 10) + green); + blue = Math.min (0xFF, (blue / 10) + blue); + } + return (red & 0xFF) | ((green & 0xFF) << 8) | ((blue & 0xFF) << 16); +} + +/** + * Returns the direction of the sort indicator for the receiver. + * The value will be one of <code>UP</code>, <code>DOWN</code> + * or <code>NONE</code>. + * + * @return the sort direction + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setSortDirection(int) + * + * @since 3.2 + */ +public int getSortDirection () { + checkWidget (); + return sortDirection; +} + +/** + * Returns the item which is currently at the top of the receiver. + * This item can change when items are expanded, collapsed, scrolled + * or new items are added or removed. + * + * @return the item at the top of the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.1 + */ +public TreeItem getTopItem () { + checkWidget (); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + return hItem !is 0 ? _getItem (hItem) : null; +} + +int imageIndex (Image image, int index) { + if (image is null) return OS.I_IMAGENONE; + if (imageList is null) { + Rectangle bounds = image.getBounds (); + imageList = display.getImageList (style & DWT.RIGHT_TO_LEFT, bounds.width, bounds.height); + } + int imageIndex = imageList.indexOf (image); + if (imageIndex is -1) imageIndex = imageList.add (image); + if (hwndHeader is 0 || OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0) is index) { + int hImageList = imageList.getHandle (); + int hOldImageList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0); + if (hOldImageList !is hImageList) { + OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, hImageList); + updateScrollBar (); + } + } + return imageIndex; +} + +int imageIndexHeader (Image image) { + if (image is null) return OS.I_IMAGENONE; + if (headerImageList is null) { + Rectangle bounds = image.getBounds (); + headerImageList = display.getImageList (style & DWT.RIGHT_TO_LEFT, bounds.width, bounds.height); + int index = headerImageList.indexOf (image); + if (index is -1) index = headerImageList.add (image); + int hImageList = headerImageList.getHandle (); + if (hwndHeader !is 0) { + OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, hImageList); + } + updateScrollBar (); + return index; + } + int index = headerImageList.indexOf (image); + if (index !is -1) return index; + return headerImageList.add (image); +} + +/** + * Searches the receiver's list starting at the first column + * (index 0) until a column is found that is equal to the + * argument, and returns the index of that column. If no column + * is found, returns -1. + * + * @param column the search column + * @return the index of the column + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the column is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public int indexOf (TreeColumn column) { + checkWidget (); + if (column is null) error (DWT.ERROR_NULL_ARGUMENT); + if (column.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + if (hwndHeader is 0) return -1; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + if (columns [i] is column) return i; + } + return -1; +} + +/** + * Searches the receiver's list starting at the first item + * (index 0) until an item is found that is equal to the + * argument, and returns the index of that item. If no item + * is found, returns -1. + * + * @param item the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public int indexOf (TreeItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + return hItem is 0 ? -1 : findIndex (hItem, item.handle); +} + +bool isItemSelected (NMTVCUSTOMDRAW nmcd) { + bool selected = false; + if (OS.IsWindowEnabled (handle)) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.hItem = nmcd.dwItemSpec; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((tvItem.state & (OS.TVIS_SELECTED | OS.TVIS_DROPHILITED)) !is 0) { + selected = true; + /* + * Feature in Windows. When the mouse is pressed and the + * selection is first drawn for a tree, the previously + * selected item is redrawn but the the TVIS_SELECTED bits + * are not cleared. When the user moves the mouse slightly + * and a drag and drop operation is not started, the item is + * drawn again and this time with TVIS_SELECTED is cleared. + * This means that an item that contains colored cells will + * not draw with the correct background until the mouse is + * moved. The fix is to test for the selection colors and + * guess that the item is not selected. + * + * NOTE: This code does not work when the foreground and + * background of the tree are set to the selection colors + * but this does not happen in a regular application. + */ + if (handle is OS.GetFocus ()) { + if (OS.GetTextColor (nmcd.hdc) !is OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT)) { + selected = false; + } else { + if (OS.GetBkColor (nmcd.hdc) !is OS.GetSysColor (OS.COLOR_HIGHLIGHT)) { + selected = false; + } + } + } + } else { + if (nmcd.dwDrawStage is OS.CDDS_ITEMPOSTPAINT) { + /* + * Feature in Windows. When the mouse is pressed and the + * selection is first drawn for a tree, the item is drawn + * selected, but the TVIS_SELECTED bits for the item are + * not set. When the user moves the mouse slightly and + * a drag and drop operation is not started, the item is + * drawn again and this time TVIS_SELECTED is set. This + * means that an item that is in a tree that has the style + * TVS_FULLROWSELECT and that also contains colored cells + * will not draw the entire row selected until the user + * moves the mouse. The fix is to test for the selection + * colors and guess that the item is selected. + * + * NOTE: This code does not work when the foreground and + * background of the tree are set to the selection colors + * but this does not happen in a regular application. + */ + if (OS.GetTextColor (nmcd.hdc) is OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT)) { + if (OS.GetBkColor (nmcd.hdc) is OS.GetSysColor (OS.COLOR_HIGHLIGHT)) { + selected = true; + } + } + } + } + } + return selected; +} + +void redrawSelection () { + if ((style & DWT.SINGLE) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem !is 0) { + RECT rect = new RECT (); + rect.left = hItem; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect); + OS.InvalidateRect (handle, rect, true); + } + } else { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + if (hItem !is 0) { + TVITEM tvItem = null; + if (OS.IsWinCE) { + tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_STATE; + } + RECT rect = new RECT (); + int index = 0, count = OS.SendMessage (handle, OS.TVM_GETVISIBLECOUNT, 0, 0); + while (index < count && hItem !is 0) { + int state = 0; + if (OS.IsWinCE) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); + } + if ((state & OS.TVIS_SELECTED) !is 0) { + rect.left = hItem; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect); + OS.InvalidateRect (handle, rect, true); + } + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); + index++; + } + } + } +} + +void register () { + super.register (); + if (hwndParent !is 0) display.addControl (hwndParent, this); + if (hwndHeader !is 0) display.addControl (hwndHeader, this); +} + +void releaseItem (int hItem, TVITEM tvItem, bool release) { + if (hItem is hAnchor) hAnchor = 0; + if (hItem is hInsert) hInsert = 0; + tvItem.hItem = hItem; + if (OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem) !is 0) { + if (tvItem.lParam !is -1) { + if (tvItem.lParam < lastID) lastID = tvItem.lParam; + if (release) { + TreeItem item = items [tvItem.lParam]; + if (item !is null) item.release (false); + } + items [tvItem.lParam] = null; + } + } +} + +void releaseItems (int hItem, TVITEM tvItem) { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + while (hItem !is 0) { + releaseItems (hItem, tvItem); + releaseItem (hItem, tvItem, true); + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + } +} + +void releaseHandle () { + super.releaseHandle (); + hwndParent = hwndHeader = 0; +} + +void releaseChildren (bool destroy) { + if (items !is null) { + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null && !item.isDisposed ()) { + item.release (false); + } + } + items = null; + } + if (columns !is null) { + for (int i=0; i<columns.length; i++) { + TreeColumn column = columns [i]; + if (column !is null && !column.isDisposed ()) { + column.release (false); + } + } + columns = null; + } + super.releaseChildren (destroy); +} + +void releaseWidget () { + super.releaseWidget (); + /* + * Feature in Windows. For some reason, when TVM_GETIMAGELIST + * or TVM_SETIMAGELIST is sent, the tree issues NM_CUSTOMDRAW + * messages. This behavior is unwanted when the tree is being + * disposed. The fix is to ignore NM_CUSTOMDRAW messages by + * clearing the custom draw flag. + * + * NOTE: This only happens on Windows XP. + */ + customDraw = false; + if (imageList !is null) { + OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, 0); + display.releaseImageList (imageList); + } + if (headerImageList !is null) { + if (hwndHeader !is 0) { + OS.SendMessage (hwndHeader, OS.HDM_SETIMAGELIST, 0, 0); + } + display.releaseImageList (headerImageList); + } + imageList = headerImageList = null; + int hStateList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_STATE, 0); + OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_STATE, 0); + if (hStateList !is 0) OS.ImageList_Destroy (hStateList); + if (itemToolTipHandle !is 0) OS.DestroyWindow (itemToolTipHandle); + if (headerToolTipHandle !is 0) OS.DestroyWindow (headerToolTipHandle); + itemToolTipHandle = headerToolTipHandle = 0; + if (display.isXMouseActive ()) { + Shell shell = getShell (); + if (shell.lockToolTipControl is this) { + shell.lockToolTipControl = null; + } + } +} + +/** + * Removes all of the items from the receiver. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void removeAll () { + checkWidget (); + hFirstIndexOf = hLastIndexOf = 0; + itemCount = -1; + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null && !item.isDisposed ()) { + item.release (false); + } + } + ignoreDeselect = ignoreSelect = true; + bool redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + shrink = ignoreShrink = true; + int result = OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, OS.TVI_ROOT); + ignoreShrink = false; + if (redraw) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, null, true); + } + ignoreDeselect = ignoreSelect = false; + if (result is 0) error (DWT.ERROR_ITEM_NOT_REMOVED); + if (imageList !is null) { + OS.SendMessage (handle, OS.TVM_SETIMAGELIST, 0, 0); + display.releaseImageList (imageList); + } + imageList = null; + if (hwndParent is 0 && !linesVisible) { + if (!hooks (DWT.MeasureItem) && !hooks (DWT.EraseItem) && !hooks (DWT.PaintItem)) { + customDraw = false; + } + } + hAnchor = hInsert = hFirstIndexOf = hLastIndexOf = 0; + itemCount = -1; + items = new TreeItem [4]; + scrollWidth = 0; + setScrollWidth (); + updateScrollBar (); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the user changes the receiver's selection. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when items in the receiver are expanded or collapsed. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see TreeListener + * @see #addTreeListener + */ +public void removeTreeListener(TreeListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Expand, listener); + eventTable.unhook (DWT.Collapse, listener); +} + +/** + * Display a mark indicating the point at which an item will be inserted. + * The drop insert item has a visual hint to show where a dragged item + * will be inserted when dropped on the tree. + * + * @param item the insert item. Null will clear the insertion mark. + * @param before true places the insert mark above 'item'. false places + * the insert mark below 'item'. + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setInsertMark (TreeItem item, bool before) { + checkWidget (); + int hItem = 0; + if (item !is null) { + if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + hItem = item.handle; + } + hInsert = hItem; + insertAfter = !before; + OS.SendMessage (handle, OS.TVM_SETINSERTMARK, insertAfter ? 1 : 0, hInsert); +} + +/** + * Sets the number of root-level items contained in the receiver. + * + * @param count the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setItemCount (int count) { + checkWidget (); + count = Math.max (0, count); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + setItemCount (count, OS.TVGN_ROOT, hItem); +} + +void setItemCount (int count, int hParent, int hItem) { + bool redraw = false; + if (OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0) is 0) { + redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + int itemCount = 0; + while (hItem !is 0 && itemCount < count) { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + itemCount++; + } + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + while (hItem !is 0) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + TreeItem item = tvItem.lParam !is -1 ? items [tvItem.lParam] : null; + if (item !is null && !item.isDisposed ()) { + item.dispose (); + } else { + releaseItem (tvItem.hItem, tvItem, false); + destroyItem (null, tvItem.hItem); + } + } + if ((style & DWT.VIRTUAL) !is 0) { + for (int i=itemCount; i<count; i++) { + createItem (null, hParent, OS.TVI_LAST, 0); + } + } else { + shrink = true; + int extra = Math.max (4, (count + 3) / 4 * 4); + TreeItem [] newItems = new TreeItem [items.length + extra]; + System.arraycopy (items, 0, newItems, 0, items.length); + items = newItems; + for (int i=itemCount; i<count; i++) { + new TreeItem (this, DWT.NONE, hParent, OS.TVI_LAST, 0); + } + } + if (redraw) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, null, true); + } +} + +/** + * Sets the height of the area which would be used to + * display <em>one</em> of the items in the tree. + * + * @param itemHeight the height of one item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +/*public*/ void setItemHeight (int itemHeight) { + checkWidget (); + if (itemHeight < -1) error (DWT.ERROR_INVALID_ARGUMENT); + OS.SendMessage (handle, OS.TVM_SETITEMHEIGHT, itemHeight, 0); +} + +/** + * Marks the receiver's lines as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param show the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setLinesVisible (bool show) { + checkWidget (); + if (linesVisible is show) return; + linesVisible = show; + if (hwndParent is 0 && linesVisible) customDraw = true; + OS.InvalidateRect (handle, null, true); +} + +int scrolledHandle () { + if (hwndHeader is 0) return handle; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + return count is 0 ? handle : hwndParent; +} + +void select (int hItem, TVITEM tvItem) { + while (hItem !is 0) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + select (hFirstItem, tvItem); + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + } +} + +/** + * Selects all of the items in the receiver. + * <p> + * If the receiver is single-select, do nothing. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void selectAll () { + checkWidget (); + if ((style & DWT.SINGLE) !is 0) return; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.state = OS.TVIS_SELECTED; + tvItem.stateMask = OS.TVIS_SELECTED; + int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); + if ((style & DWT.VIRTUAL) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + select (hItem, tvItem); + } else { + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null) { + tvItem.hItem = item.handle; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); +} + +void setBackgroundImage (int hBitmap) { + super.setBackgroundImage (hBitmap); + if (hBitmap !is 0) { + /* + * Feature in Windows. If TVM_SETBKCOLOR is never + * used to set the background color of a tree, the + * background color of the lines and the plus/minus + * will be drawn using the default background color, + * not the HBRUSH returned from WM_CTLCOLOR. The fix + * is to set the background color to the default (when + * it is already the default) to make Windows use the + * brush. + */ + if (OS.SendMessage (handle, OS.TVM_GETBKCOLOR, 0, 0) is -1) { + OS.SendMessage (handle, OS.TVM_SETBKCOLOR, 0, -1); + } + _setBackgroundPixel (-1); + } else { + Control control = findBackgroundControl (); + if (control is null) control = this; + if (control.backgroundImage is null) { + setBackgroundPixel (control.getBackgroundPixel ()); + } + } + /* + * Feature in Windows. When the tree has the style + * TVS_FULLROWSELECT, the background color for the + * entire row is filled when an item is painted, + * drawing on top of the background image. The fix + * is to clear TVS_FULLROWSELECT when a background + * image is set. + */ + updateFullSelection (); +} + +void setBackgroundPixel (int pixel) { + Control control = findImageControl (); + if (control !is null) { + setBackgroundImage (control.backgroundImage); + return; + } + /* + * Feature in Windows. When a tree is given a background color + * using TVM_SETBKCOLOR and the tree is disabled, Windows draws + * the tree using the background color rather than the disabled + * colors. This is different from the table which draws grayed. + * The fix is to set the default background color while the tree + * is disabled and restore it when enabled. + */ + if (OS.IsWindowEnabled (handle)) _setBackgroundPixel (pixel); + + /* + * Feature in Windows. When the tree has the style + * TVS_FULLROWSELECT, the background color for the + * entire row is filled when an item is painted, + * drawing on top of the background image. The fix + * is to restore TVS_FULLROWSELECT when a background + * color is set. + */ + updateFullSelection (); +} + +void setBounds (int x, int y, int width, int height, int flags) { + /* + * Ensure that the selection is visible when the tree is resized + * from a zero size to a size that can show the selection. + */ + bool fixSelection = false; + if ((flags & OS.SWP_NOSIZE) is 0 && (width !is 0 || height !is 0)) { + if (OS.SendMessage (handle, OS.TVM_GETVISIBLECOUNT, 0, 0) is 0) { + fixSelection = true; + } + } + super.setBounds (x, y, width, height, flags); + if (fixSelection) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem !is 0) showItem (hItem); + } +} + +void setCursor () { + /* + * Bug in Windows. Under certain circumstances, when WM_SETCURSOR + * is sent from SendMessage(), Windows GP's in the window proc for + * the tree. The fix is to avoid calling the tree window proc and + * set the cursor for the tree outside of WM_SETCURSOR. + * + * NOTE: This code assumes that the default cursor for the tree + * is IDC_ARROW. + */ + Cursor cursor = findCursor (); + int hCursor = cursor is null ? OS.LoadCursor (0, OS.IDC_ARROW) : cursor.handle; + OS.SetCursor (hCursor); +} + +/** + * Sets the order that the items in the receiver should + * be displayed in to the given argument which is described + * in terms of the zero-relative ordering of when the items + * were added. + * + * @param order the new order to display the items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item order is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item order is not the same length as the number of items</li> + * </ul> + * + * @see Tree#getColumnOrder() + * @see TreeColumn#getMoveable() + * @see TreeColumn#setMoveable(bool) + * @see DWT#Move + * + * @since 3.2 + */ +public void setColumnOrder (int [] order) { + checkWidget (); + if (order is null) error (DWT.ERROR_NULL_ARGUMENT); + int count = 0; + if (hwndHeader !is 0) { + count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + } + if (count is 0) { + if (order.length !is 0) error (DWT.ERROR_INVALID_ARGUMENT); + return; + } + if (order.length !is count) error (DWT.ERROR_INVALID_ARGUMENT); + int [] oldOrder = new int [count]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, oldOrder); + bool reorder = false; + bool [] seen = new bool [count]; + for (int i=0; i<order.length; i++) { + int index = order [i]; + if (index < 0 || index >= count) error (DWT.ERROR_INVALID_RANGE); + if (seen [index]) error (DWT.ERROR_INVALID_ARGUMENT); + seen [index] = true; + if (index !is oldOrder [i]) reorder = true; + } + if (reorder) { + RECT [] oldRects = new RECT [count]; + for (int i=0; i<count; i++) { + oldRects [i] = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, oldRects [i]); + } + OS.SendMessage (hwndHeader, OS.HDM_SETORDERARRAY, order.length, order); + OS.InvalidateRect (handle, null, true); + updateImageList (); + TreeColumn [] newColumns = new TreeColumn [count]; + System.arraycopy (columns, 0, newColumns, 0, count); + RECT newRect = new RECT (); + for (int i=0; i<count; i++) { + TreeColumn column = newColumns [i]; + if (!column.isDisposed ()) { + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, newRect); + if (newRect.left !is oldRects [i].left) { + column.updateToolTip (i); + column.sendEvent (DWT.Move); + } + } + } + } +} + +void setCheckboxImageList () { + if ((style & DWT.CHECK) is 0) return; + int count = 5, flags = 0; + if (OS.IsWinCE) { + flags |= OS.ILC_COLOR; + } else { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + flags |= OS.ILC_COLOR32; + } else { + int hDC = OS.GetDC (handle); + int bits = OS.GetDeviceCaps (hDC, OS.BITSPIXEL); + int planes = OS.GetDeviceCaps (hDC, OS.PLANES); + OS.ReleaseDC (handle, hDC); + int depth = bits * planes; + switch (depth) { + case 4: flags |= OS.ILC_COLOR4; break; + case 8: flags |= OS.ILC_COLOR8; break; + case 16: flags |= OS.ILC_COLOR16; break; + case 24: flags |= OS.ILC_COLOR24; break; + case 32: flags |= OS.ILC_COLOR32; break; + default: flags |= OS.ILC_COLOR; break; + } + flags |= OS.ILC_MASK; + } + } + if ((style & DWT.RIGHT_TO_LEFT) !is 0) flags |= OS.ILC_MIRROR; + int height = OS.SendMessage (handle, OS.TVM_GETITEMHEIGHT, 0, 0), width = height; + int hStateList = OS.ImageList_Create (width, height, flags, count, count); + int hDC = OS.GetDC (handle); + int memDC = OS.CreateCompatibleDC (hDC); + int hBitmap = OS.CreateCompatibleBitmap (hDC, width * count, height); + int hOldBitmap = OS.SelectObject (memDC, hBitmap); + RECT rect = new RECT (); + OS.SetRect (rect, 0, 0, width * count, height); + /* + * NOTE: DrawFrameControl() draws a black and white + * mask when not drawing a push button. In order to + * make the box surrounding the check mark transparent, + * fill it with a color that is neither black or white. + */ + int clrBackground = 0; + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + Control control = findBackgroundControl (); + if (control is null) control = this; + clrBackground = control.getBackgroundPixel (); + } else { + clrBackground = 0x020000FF; + if ((clrBackground & 0xFFFFFF) is OS.GetSysColor (OS.COLOR_WINDOW)) { + clrBackground = 0x0200FF00; + } + } + int hBrush = OS.CreateSolidBrush (clrBackground); + OS.FillRect (memDC, rect, hBrush); + OS.DeleteObject (hBrush); + int oldFont = OS.SelectObject (hDC, defaultFont ()); + TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); + OS.GetTextMetrics (hDC, tm); + OS.SelectObject (hDC, oldFont); + int itemWidth = Math.min (tm.tmHeight, width); + int itemHeight = Math.min (tm.tmHeight, height); + int left = (width - itemWidth) / 2, top = (height - itemHeight) / 2 + 1; + OS.SetRect (rect, left + width, top, left + width + itemWidth, top + itemHeight); + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + int hTheme = display.hButtonTheme (); + OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null); + rect.left += width; rect.right += width; + OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_CHECKEDNORMAL, rect, null); + rect.left += width; rect.right += width; + OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_UNCHECKEDNORMAL, rect, null); + rect.left += width; rect.right += width; + OS.DrawThemeBackground (hTheme, memDC, OS.BP_CHECKBOX, OS.CBS_MIXEDNORMAL, rect, null); + } else { + OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_FLAT); + rect.left += width; rect.right += width; + OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_FLAT); + rect.left += width; rect.right += width; + OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_INACTIVE | OS.DFCS_FLAT); + rect.left += width; rect.right += width; + OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_INACTIVE | OS.DFCS_FLAT); + } + OS.SelectObject (memDC, hOldBitmap); + OS.DeleteDC (memDC); + OS.ReleaseDC (handle, hDC); + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + OS.ImageList_Add (hStateList, hBitmap, 0); + } else { + OS.ImageList_AddMasked (hStateList, hBitmap, clrBackground); + } + OS.DeleteObject (hBitmap); + int hOldStateList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_STATE, 0); + OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_STATE, hStateList); + if (hOldStateList !is 0) OS.ImageList_Destroy (hOldStateList); +} + +public void setFont (Font font) { + checkWidget (); + super.setFont (font); + if ((style & DWT.CHECK) !is 0) setCheckboxImageList (); +} + +void setForegroundPixel (int pixel) { + /* + * Bug in Windows. When the tree is using the explorer + * theme, it does not use COLOR_WINDOW_TEXT for the + * foreground. When TVM_SETTEXTCOLOR is called with -1, + * it resets the color to black, not COLOR_WINDOW_TEXT. + * The fix is to explicitly set the color. + */ + if (explorerTheme) { + if (pixel is -1) pixel = defaultForeground (); + } + OS.SendMessage (handle, OS.TVM_SETTEXTCOLOR, 0, pixel); +} + +/** + * Marks the receiver's header as visible if the argument is <code>true</code>, + * and marks it invisible otherwise. + * <p> + * If one of the receiver's ancestors is not visible or some + * other condition makes the receiver not visible, marking + * it visible may not actually cause it to be displayed. + * </p> + * + * @param show the new visibility state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setHeaderVisible (bool show) { + checkWidget (); + if (hwndHeader is 0) { + if (!show) return; + createParent (); + } + int bits = OS.GetWindowLong (hwndHeader, OS.GWL_STYLE); + if (show) { + if ((bits & OS.HDS_HIDDEN) is 0) return; + bits &= ~OS.HDS_HIDDEN; + OS.SetWindowLong (hwndHeader, OS.GWL_STYLE, bits); + OS.ShowWindow (hwndHeader, OS.SW_SHOW); + } else { + if ((bits & OS.HDS_HIDDEN) !is 0) return; + bits |= OS.HDS_HIDDEN; + OS.SetWindowLong (hwndHeader, OS.GWL_STYLE, bits); + OS.ShowWindow (hwndHeader, OS.SW_HIDE); + } + setScrollWidth (); + updateHeaderToolTips (); + updateScrollBar (); +} + +public void setRedraw (bool redraw) { + checkWidget (); + /* + * Feature in Windows. When WM_SETREDRAW is used to + * turn off redraw, the scroll bars are updated when + * items are added and removed. The fix is to call + * the default window proc to stop all drawing. + * + * Bug in Windows. For some reason, when WM_SETREDRAW + * is used to turn redraw on for a tree and the tree + * contains no items, the last item in the tree does + * not redraw properly. If the tree has only one item, + * that item is not drawn. If another window is dragged + * on top of the item, parts of the item are redrawn + * and erased at random. The fix is to ensure that this + * case doesn't happen by inserting and deleting an item + * when redraw is turned on and there are no items in + * the tree. + */ + int hItem = 0; + if (redraw) { + if (drawCount is 1) { + int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); + if (count is 0) { + TVINSERTSTRUCT tvInsert = new TVINSERTSTRUCT (); + tvInsert.hInsertAfter = OS.TVI_FIRST; + hItem = OS.SendMessage (handle, OS.TVM_INSERTITEM, 0, tvInsert); + } + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + } + } + super.setRedraw (redraw); + if (!redraw) { + if (drawCount is 1) OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + if (hItem !is 0) { + ignoreShrink = true; + OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, hItem); + ignoreShrink = false; + } +} + +void setScrollWidth () { + if (hwndHeader is 0 || hwndParent is 0) return; + int width = 0; + HDITEM hdItem = new HDITEM (); + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, i, hdItem); + width += hdItem.cxy; + } + setScrollWidth (Math.max (scrollWidth, width)); +} + +void setScrollWidth (int width) { + if (hwndHeader is 0 || hwndParent is 0) return; + //TEMPORARY CODE + //scrollWidth = width; + int left = 0; + RECT rect = new RECT (); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_RANGE | OS.SIF_PAGE; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (count is 0 && width is 0) { + OS.GetScrollInfo (hwndParent, OS.SB_HORZ, info); + info.nPage = info.nMax + 1; + OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); + OS.GetScrollInfo (hwndParent, OS.SB_VERT, info); + info.nPage = info.nMax + 1; + OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); + } else { + OS.GetClientRect (hwndParent, rect); + OS.GetScrollInfo (hwndParent, OS.SB_HORZ, info); + info.nMax = width; + info.nPage = rect.right - rect.left + 1; + OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); + info.fMask = OS.SIF_POS; + OS.GetScrollInfo (hwndParent, OS.SB_HORZ, info); + left = info.nPos; + } + if (horizontalBar !is null) { + horizontalBar.setIncrement (INCREMENT); + horizontalBar.setPageIncrement (info.nPage); + } + OS.GetClientRect (hwndParent, rect); + int hHeap = OS.GetProcessHeap (); + HDLAYOUT playout = new HDLAYOUT (); + playout.prc = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, RECT.sizeof); + playout.pwpos = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, WINDOWPOS.sizeof); + OS.MoveMemory (playout.prc, rect, RECT.sizeof); + OS.SendMessage (hwndHeader, OS.HDM_LAYOUT, 0, playout); + WINDOWPOS pos = new WINDOWPOS (); + OS.MoveMemory (pos, playout.pwpos, WINDOWPOS.sizeof); + if (playout.prc !is 0) OS.HeapFree (hHeap, 0, playout.prc); + if (playout.pwpos !is 0) OS.HeapFree (hHeap, 0, playout.pwpos); + SetWindowPos (hwndHeader, OS.HWND_TOP, pos.x - left, pos.y, pos.cx + left, pos.cy, OS.SWP_NOACTIVATE); + int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE); + int b = (bits & OS.WS_EX_CLIENTEDGE) !is 0 ? OS.GetSystemMetrics (OS.SM_CXEDGE) : 0; + int w = pos.cx + (count is 0 && width is 0 ? 0 : OS.GetSystemMetrics (OS.SM_CXVSCROLL)); + int h = rect.bottom - rect.top - pos.cy; + bool oldIgnore = ignoreResize; + ignoreResize = true; + SetWindowPos (handle, 0, pos.x - left - b, pos.y + pos.cy - b, w + left + b * 2, h + b * 2, OS.SWP_NOACTIVATE | OS.SWP_NOZORDER); + ignoreResize = oldIgnore; +} + +void setSelection (int hItem, TVITEM tvItem, TreeItem [] selection) { + while (hItem !is 0) { + int index = 0; + while (index < selection.length) { + TreeItem item = selection [index]; + if (item !is null && item.handle is hItem) break; + index++; + } + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((tvItem.state & OS.TVIS_SELECTED) !is 0) { + if (index is selection.length) { + tvItem.state = 0; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } else { + if (index !is selection.length) { + tvItem.state = OS.TVIS_SELECTED; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + setSelection (hFirstItem, tvItem, selection); + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem); + } +} + +/** + * Sets the receiver's selection to the given item. + * The current selection is cleared before the new item is selected. + * <p> + * If the item is not in the receiver, then it is ignored. + * </p> + * + * @param item the item to select + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setSelection (TreeItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + setSelection (new TreeItem [] {item}); +} + +/** + * Sets the receiver's selection to be the given array of items. + * The current selection is cleared before the new items are selected. + * <p> + * Items that are not in the receiver are ignored. + * If the receiver is single-select and multiple items are specified, + * then all items are ignored. + * </p> + * + * @param items the array of items + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of items is null</li> + * <li>ERROR_INVALID_ARGUMENT - if one of the items has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#deselectAll() + */ +public void setSelection (TreeItem [] items) { + checkWidget (); + if (items is null) error (DWT.ERROR_NULL_ARGUMENT); + int length = items.length; + if (length is 0 || ((style & DWT.SINGLE) !is 0 && length > 1)) { + deselectAll(); + return; + } + + /* Select/deselect the first item */ + TreeItem item = items [0]; + if (item !is null) { + if (item.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + int hOldItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + int hNewItem = hAnchor = item.handle; + + /* + * Bug in Windows. When TVM_SELECTITEM is used to select and + * scroll an item to be visible and the client area of the tree + * is smaller that the size of one item, TVM_SELECTITEM makes + * the next item in the tree visible by making it the top item + * instead of making the desired item visible. The fix is to + * detect the case when the client area is too small and make + * the desired visible item be the top item in the tree. + * + * Note that TVM_SELECTITEM when called with TVGN_FIRSTVISIBLE + * also requires the work around for scrolling. + */ + bool fixScroll = checkScroll (hNewItem); + if (fixScroll) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + ignoreSelect = true; + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hNewItem); + ignoreSelect = false; + if (OS.SendMessage (handle, OS.TVM_GETVISIBLECOUNT, 0, 0) is 0) { + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_FIRSTVISIBLE, hNewItem); + int hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hNewItem); + if (hParent is 0) OS.SendMessage (handle, OS.WM_HSCROLL, OS.SB_TOP, 0); + } + if (fixScroll) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } + + /* + * Feature in Windows. When the old and new focused item + * are the same, Windows does not check to make sure that + * the item is actually selected, not just focused. The + * fix is to force the item to draw selected by setting + * the state mask, and to ensure that it is visible. + */ + if (hOldItem is hNewItem) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.state = OS.TVIS_SELECTED; + tvItem.stateMask = OS.TVIS_SELECTED; + tvItem.hItem = hNewItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + showItem (hNewItem); + } + } + if ((style & DWT.SINGLE) !is 0) return; + + /* Select/deselect the rest of the items */ + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_SELECTED; + int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); + if ((style & DWT.VIRTUAL) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + setSelection (hItem, tvItem, items); + } else { + for (int i=0; i<this.items.length; i++) { + item = this.items [i]; + if (item !is null) { + int index = 0; + while (index < length) { + if (items [index] is item) break; + index++; + } + tvItem.hItem = item.handle; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((tvItem.state & OS.TVIS_SELECTED) !is 0) { + if (index is length) { + tvItem.state = 0; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } else { + if (index !is length) { + tvItem.state = OS.TVIS_SELECTED; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + } + } + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); +} + +/** + * Sets the column used by the sort indicator for the receiver. A null + * value will clear the sort indicator. The current sort column is cleared + * before the new column is set. + * + * @param column the column used by the sort indicator or <code>null</code> + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the column is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setSortColumn (TreeColumn column) { + checkWidget (); + if (column !is null && column.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + if (sortColumn !is null && !sortColumn.isDisposed ()) { + sortColumn.setSortDirection (DWT.NONE); + } + sortColumn = column; + if (sortColumn !is null && sortDirection !is DWT.NONE) { + sortColumn.setSortDirection (sortDirection); + } +} + +/** + * Sets the direction of the sort indicator for the receiver. The value + * can be one of <code>UP</code>, <code>DOWN</code> or <code>NONE</code>. + * + * @param direction the direction of the sort indicator + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setSortDirection (int direction) { + checkWidget (); + if ((direction & (DWT.UP | DWT.DOWN)) is 0 && direction !is DWT.NONE) return; + sortDirection = direction; + if (sortColumn !is null && !sortColumn.isDisposed ()) { + sortColumn.setSortDirection (direction); + } +} + +/** + * Sets the item which is currently at the top of the receiver. + * This item can change when items are expanded, collapsed, scrolled + * or new items are added or removed. + * + * @param item the item to be shown + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#getTopItem() + * + * @since 2.1 + */ +public void setTopItem (TreeItem item) { + checkWidget (); + if (item is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + if (item.isDisposed ()) DWT.error (DWT.ERROR_INVALID_ARGUMENT); + int hItem = item.handle; + int hTopItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + if (hItem is hTopItem) return; + bool fixScroll = checkScroll (hItem), redraw = false; + if (fixScroll) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } else { + redraw = drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_FIRSTVISIBLE, hItem); + int hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hItem); + if (hParent is 0) OS.SendMessage (handle, OS.WM_HSCROLL, OS.SB_TOP, 0); + if (fixScroll) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } else { + if (redraw) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, null, true); + } + } + updateScrollBar (); +} + +void showItem (int hItem) { + /* + * Bug in Windows. When TVM_ENSUREVISIBLE is used to ensure + * that an item is visible and the client area of the tree is + * smaller that the size of one item, TVM_ENSUREVISIBLE makes + * the next item in the tree visible by making it the top item + * instead of making the desired item visible. The fix is to + * detect the case when the client area is too small and make + * the desired visible item be the top item in the tree. + */ + if (OS.SendMessage (handle, OS.TVM_GETVISIBLECOUNT, 0, 0) is 0) { + bool fixScroll = checkScroll (hItem); + if (fixScroll) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_FIRSTVISIBLE, hItem); + /* This code is intentionally commented */ + //int hParent = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hItem); + //if (hParent is 0) OS.SendMessage (handle, OS.WM_HSCROLL, OS.SB_TOP, 0); + OS.SendMessage (handle, OS.WM_HSCROLL, OS.SB_TOP, 0); + if (fixScroll) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } + } else { + bool scroll = true; + RECT itemRect = new RECT (); + itemRect.left = hItem; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, itemRect) !is 0) { + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + POINT pt = new POINT (); + pt.x = itemRect.left; + pt.y = itemRect.top; + if (OS.PtInRect (rect, pt)) { + pt.y = itemRect.bottom; + if (OS.PtInRect (rect, pt)) scroll = false; + } + } + if (scroll) { + bool fixScroll = checkScroll (hItem); + if (fixScroll) { + OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hItem); + if (fixScroll) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); + } + } + } + if (hwndParent !is 0) { + RECT itemRect = new RECT (); + itemRect.left = hItem; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, itemRect) !is 0) { + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (hwndParent, rect); + OS.MapWindowPoints (hwndParent, handle, rect, 2); + POINT pt = new POINT (); + pt.x = itemRect.left; + pt.y = itemRect.top; + if (!OS.PtInRect (rect, pt)) { + pt.y = itemRect.bottom; + if (!OS.PtInRect (rect, pt)) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + info.nPos = Math.max (0, pt.x - Tree.INSET / 2); + OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); + setScrollWidth (); + } + } + } + } + updateScrollBar (); +} + +/** + * Shows the column. If the column is already showing in the receiver, + * this method simply returns. Otherwise, the columns are scrolled until + * the column is visible. + * + * @param column the column to be shown + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void showColumn (TreeColumn column) { + checkWidget (); + if (column is null) error (DWT.ERROR_NULL_ARGUMENT); + if (column.isDisposed ()) error(DWT.ERROR_INVALID_ARGUMENT); + if (column.parent !is this) return; + int index = indexOf (column); + if (index is -1) return; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (0 <= index && index < count) { + if (hwndParent !is 0) { + forceResize (); + RECT rect = new RECT (); + OS.GetClientRect (hwndParent, rect); + OS.MapWindowPoints (hwndParent, handle, rect, 2); + RECT headerRect = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + bool scroll = headerRect.left < rect.left; + if (!scroll) { + int width = Math.min (rect.right - rect.left, headerRect.right - headerRect.left); + scroll = headerRect.left + width > rect.right; + } + if (scroll) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + info.nPos = Math.max (0, headerRect.left - Tree.INSET / 2); + OS.SetScrollInfo (hwndParent, OS.SB_HORZ, info, true); + setScrollWidth (); + } + } + } +} + +/** + * Shows the item. If the item is already showing in the receiver, + * this method simply returns. Otherwise, the items are scrolled + * and expanded until the item is visible. + * + * @param item the item to be shown + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#showSelection() + */ +public void showItem (TreeItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + if (item.isDisposed ()) error(DWT.ERROR_INVALID_ARGUMENT); + showItem (item.handle); +} + +/** + * Shows the selection. If the selection is already showing in the receiver, + * this method simply returns. Otherwise, the items are scrolled until + * the selection is visible. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#showItem(TreeItem) + */ +public void showSelection () { + checkWidget (); + int hItem = 0; + if ((style & DWT.SINGLE) !is 0) { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem is 0) return; + int state = 0; + if (OS.IsWinCE) { + TVITEM tvItem = new TVITEM (); + tvItem.hItem = hItem; + tvItem.mask = OS.TVIF_STATE; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, hItem, OS.TVIS_SELECTED); + } + if ((state & OS.TVIS_SELECTED) is 0) return; + } else { + int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); + TVITEM tvItem = null; + if (OS.IsWinCE) { + tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_STATE; + } + if ((style & DWT.VIRTUAL) !is 0) { + int hRoot = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + hItem = getNextSelection (hRoot, tvItem); + } else { + //FIXME - this code expands first selected item it finds + int index = 0; + while (index <items.length) { + TreeItem item = items [index]; + if (item !is null) { + int state = 0; + if (OS.IsWinCE) { + tvItem.hItem = item.handle; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + state = OS.SendMessage (handle, OS.TVM_GETITEMSTATE, item.handle, OS.TVIS_SELECTED); + } + if ((state & OS.TVIS_SELECTED) !is 0) { + hItem = item.handle; + break; + } + } + index++; + } + } + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); + } + if (hItem !is 0) showItem (hItem); +} + +/*public*/ void sort () { + checkWidget (); + if ((style & DWT.VIRTUAL) !is 0) return; + sort (OS.TVI_ROOT, false); +} + +void sort (int hParent, bool all) { + int itemCount = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); + if (itemCount is 0 || itemCount is 1) return; + hFirstIndexOf = hLastIndexOf = 0; + itemCount = -1; + if (sortDirection is DWT.UP || sortDirection is DWT.NONE) { + OS.SendMessage (handle, OS.TVM_SORTCHILDREN, all ? 1 : 0, hParent); + } else { + Callback compareCallback = new Callback (this, "CompareFunc", 3); + int lpfnCompare = compareCallback.getAddress (); + TVSORTCB psort = new TVSORTCB (); + psort.hParent = hParent; + psort.lpfnCompare = lpfnCompare; + psort.lParam = sortColumn is null ? 0 : indexOf (sortColumn); + OS.SendMessage (handle, OS.TVM_SORTCHILDRENCB, all ? 1 : 0, psort); + compareCallback.dispose (); + } +} + +void subclass () { + super.subclass (); + if (hwndHeader !is 0) { + OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, display.windowProc); + } +} + +String toolTipText (NMTTDISPINFO hdr) { + int hwndToolTip = OS.SendMessage (handle, OS.TVM_GETTOOLTIPS, 0, 0); + if (hwndToolTip is hdr.hwndFrom && toolTipText !is null) return ""; //$NON-NLS-1$ + if (headerToolTipHandle is hdr.hwndFrom) { + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + TreeColumn column = columns [i]; + if (column.id is hdr.idFrom) return column.toolTipText; + } + return super.toolTipText (hdr); + } + if (itemToolTipHandle is hdr.hwndFrom && hwndHeader !is 0) { + if (toolTipText !is null) return ""; + if (!hooks (DWT.EraseItem) && !hooks (DWT.PaintItem)) { + int pos = OS.GetMessagePos (); + POINT pt = new POINT(); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (handle, pt); + TVHITTESTINFO lpht = new TVHITTESTINFO (); + lpht.x = pt.x; + lpht.y = pt.y; + OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); + if (lpht.hItem !is 0) { + int hDC = OS.GetDC (handle); + int oldFont = 0, newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + RECT rect = new RECT (); + OS.GetClientRect (hwndParent, rect); + OS.MapWindowPoints (hwndParent, handle, rect, 2); + TreeItem item = _getItem (lpht.hItem); + String text = null; + int index = 0, count = Math.max (1, OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0)); + int [] order = new int [count]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); + while (index < count) { + int hFont = item.cellFont !is null ? item.cellFont [order [index]] : -1; + if (hFont is -1) hFont = item.font; + if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); + RECT cellRect = item.getBounds (order [index], true, false, true, false, true, hDC); + if (hFont !is -1) OS.SelectObject (hDC, hFont); + if (cellRect.left > rect.right) break; + cellRect.right = Math.min (cellRect.right, rect.right); + if (OS.PtInRect (cellRect, pt)) { + RECT textRect = item.getBounds (order [index], true, false, false, false, false, hDC); + if (textRect.right > cellRect.right) { + if (order [index] is 0) { + text = item.text; + } else { + String[] strings = item.strings; + if (strings !is null) text = strings [order [index]]; + } + } + break; + } + index++; + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + if (text !is null) return text; + } + } + } + return super.toolTipText (hdr); +} + +int topHandle () { + return hwndParent !is 0 ? hwndParent : handle; +} + +void updateFullSelection () { + if ((style & DWT.FULL_SELECTION) !is 0) { + int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits; + if ((newBits & OS.TVS_FULLROWSELECT) !is 0) { + if (!OS.IsWindowEnabled (handle) || findImageControl () !is null) { + if (!explorerTheme) newBits &= ~OS.TVS_FULLROWSELECT; + } + } else { + if (OS.IsWindowEnabled (handle) && findImageControl () is null) { + if (!hooks (DWT.EraseItem) && !hooks (DWT.PaintItem)) { + newBits |= OS.TVS_FULLROWSELECT; + } + } + } + if (newBits !is oldBits) { + OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); + OS.InvalidateRect (handle, null, true); + } + } +} + +void updateHeaderToolTips () { + if (headerToolTipHandle is 0) return; + RECT rect = new RECT (); + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.uFlags = OS.TTF_SUBCLASS; + lpti.hwnd = hwndHeader; + lpti.lpszText = OS.LPSTR_TEXTCALLBACK; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + TreeColumn column = columns [i]; + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, i, rect) !is 0) { + lpti.uId = column.id = display.nextToolTipId++; + lpti.left = rect.left; + lpti.top = rect.top; + lpti.right = rect.right; + lpti.bottom = rect.bottom; + OS.SendMessage (headerToolTipHandle, OS.TTM_ADDTOOL, 0, lpti); + } + } +} + +void updateImageList () { + if (imageList is null) return; + if (hwndHeader is 0) return; + int i = 0, index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); + while (i < items.length) { + TreeItem item = items [i]; + if (item !is null) { + Image image = null; + if (index is 0) { + image = item.image; + } else { + Image [] images = item.images; + if (images !is null) image = images [index]; + } + if (image !is null) break; + } + i++; + } + /* + * Feature in Windows. When setting the same image list multiple + * times, Windows does work making this operation slow. The fix + * is to test for the same image list before setting the new one. + */ + int hImageList = i is items.length ? 0 : imageList.getHandle (); + int hOldImageList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0); + if (hImageList !is hOldImageList) { + OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, hImageList); + } +} + +void updateImages () { + if (sortColumn !is null && !sortColumn.isDisposed ()) { + if (OS.COMCTL32_MAJOR < 6) { + switch (sortDirection) { + case DWT.UP: + case DWT.DOWN: + sortColumn.setImage (display.getSortImage (sortDirection), true, true); + break; + } + } + } +} + +void updateScrollBar () { + if (hwndParent !is 0) { + int columnCount = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + if (columnCount !is 0 || scrollWidth !is 0) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_ALL; + int itemCount = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0); + if (itemCount is 0) { + OS.GetScrollInfo (hwndParent, OS.SB_VERT, info); + info.nPage = info.nMax + 1; + OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); + } else { + OS.GetScrollInfo (handle, OS.SB_VERT, info); + if (info.nPage is 0) info.nPage = info.nMax + 1; + OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); + } + } + } +} + +void unsubclass () { + super.unsubclass (); + if (hwndHeader !is 0) { + OS.SetWindowLong (hwndHeader, OS.GWL_WNDPROC, HeaderProc); + } +} + +int widgetStyle () { + int bits = super.widgetStyle () | OS.TVS_SHOWSELALWAYS | OS.TVS_LINESATROOT | OS.TVS_HASBUTTONS | OS.TVS_NONEVENHEIGHT; + if (EXPLORER_THEME && !OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + bits |= OS.TVS_TRACKSELECT; + if ((style & DWT.FULL_SELECTION) !is 0) bits |= OS.TVS_FULLROWSELECT; + } else { + if ((style & DWT.FULL_SELECTION) !is 0) { + bits |= OS.TVS_FULLROWSELECT; + } else { + bits |= OS.TVS_HASLINES; + } + } +// bits |= OS.TVS_NOTOOLTIPS | OS.TVS_DISABLEDRAGDROP; + return bits | OS.TVS_DISABLEDRAGDROP; +} + +TCHAR windowClass () { + return TreeClass; +} + +int windowProc () { + return TreeProc; +} + +int windowProc (int hwnd, int msg, int wParam, int lParam) { + if (hwndHeader !is 0 && hwnd is hwndHeader) { + switch (msg) { + /* This code is intentionally commented */ +// case OS.WM_CONTEXTMENU: { +// LRESULT result = wmContextMenu (hwnd, wParam, lParam); +// if (result !is null) return result.value; +// break; +// } + case OS.WM_CAPTURECHANGED: { + /* + * Bug in Windows. When the capture changes during a + * header drag, Windows does not redraw the header item + * such that the header remains pressed. For example, + * when focus is assigned to a push button, the mouse is + * pressed (but not released), then the SPACE key is + * pressed to activate the button, the capture changes, + * the header not notified and NM_RELEASEDCAPTURE is not + * sent. The fix is to redraw the header when the capture + * changes to another control. + * + * This does not happen on XP. + */ + if (OS.COMCTL32_MAJOR < 6) { + if (lParam !is 0 && lParam !is hwndHeader) { + OS.InvalidateRect (hwndHeader, null, true); + } + } + break; + } + case OS.WM_MOUSELEAVE: { + /* + * Bug in Windows. On XP, when a tooltip is hidden + * due to a time out or mouse press, the tooltip + * remains active although no longer visible and + * won't show again until another tooltip becomes + * active. The fix is to reset the tooltip bounds. + */ + if (OS.COMCTL32_MAJOR >= 6) updateHeaderToolTips (); + updateHeaderToolTips (); + break; + } + case OS.WM_NOTIFY: { + NMHDR hdr = new NMHDR (); + OS.MoveMemory (hdr, lParam, NMHDR.sizeof); + switch (hdr.code) { + case OS.TTN_SHOW: + case OS.TTN_POP: + case OS.TTN_GETDISPINFOA: + case OS.TTN_GETDISPINFOW: + return OS.SendMessage (handle, msg, wParam, lParam); + } + break; + } + case OS.WM_SETCURSOR: { + if (wParam is hwnd) { + int hitTest = (short) (lParam & 0xFFFF); + if (hitTest is OS.HTCLIENT) { + HDHITTESTINFO pinfo = new HDHITTESTINFO (); + int pos = OS.GetMessagePos (); + POINT pt = new POINT (); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (hwnd, pt); + pinfo.x = pt.x; + pinfo.y = pt.y; + int columnCount = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + int index = OS.SendMessage (hwndHeader, OS.HDM_HITTEST, 0, pinfo); + if (0 <= index && index < columnCount && !columns [index].resizable) { + if ((pinfo.flags & (OS.HHT_ONDIVIDER | OS.HHT_ONDIVOPEN)) !is 0) { + OS.SetCursor (OS.LoadCursor (0, OS.IDC_ARROW)); + return 1; + } + } + } + } + break; + } + } + return callWindowProc (hwnd, msg, wParam, lParam); + } + if (hwndParent !is 0 && hwnd is hwndParent) { + switch (msg) { + case OS.WM_MOVE: { + sendEvent (DWT.Move); + return 0; + } + case OS.WM_SIZE: { + setScrollWidth (); + if (ignoreResize) return 0; + setResizeChildren (false); + int code = callWindowProc (hwnd, OS.WM_SIZE, wParam, lParam); + sendEvent (DWT.Resize); + if (isDisposed ()) return 0; + if (layout !is null) { + markLayout (false, false); + updateLayout (false, false); + } + setResizeChildren (true); + updateScrollBar (); + return code; + } + case OS.WM_NCPAINT: { + LRESULT result = wmNCPaint (hwnd, wParam, lParam); + if (result !is null) return result.value; + break; + } + case OS.WM_PRINT: { + LRESULT result = wmPrint (hwnd, wParam, lParam); + if (result !is null) return result.value; + break; + } + case OS.WM_COMMAND: + case OS.WM_NOTIFY: + case OS.WM_SYSCOLORCHANGE: { + return OS.SendMessage (handle, msg, wParam, lParam); + } + case OS.WM_HSCROLL: { + /* + * Bug on WinCE. lParam should be NULL when the message is not sent + * by a scroll bar control, but it contains the handle to the window. + * When the message is sent by a scroll bar control, it correctly + * contains the handle to the scroll bar. The fix is to check for + * both. + */ + if (horizontalBar !is null && (lParam is 0 || lParam is hwndParent)) { + wmScroll (horizontalBar, true, hwndParent, OS.WM_HSCROLL, wParam, lParam); + } + setScrollWidth (); + break; + } + case OS.WM_VSCROLL: { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_ALL; + OS.GetScrollInfo (hwndParent, OS.SB_VERT, info); + /* + * Update the nPos field to match the nTrackPos field + * so that the tree scrolls when the scroll bar of the + * parent is dragged. + * + * NOTE: For some reason, this code is only necessary + * on Windows Vista. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + if ((wParam & 0xFFFF) is OS.SB_THUMBTRACK) { + info.nPos = info.nTrackPos; + } + } + OS.SetScrollInfo (handle, OS.SB_VERT, info, true); + int code = OS.SendMessage (handle, OS.WM_VSCROLL, wParam, lParam); + OS.GetScrollInfo (handle, OS.SB_VERT, info); + OS.SetScrollInfo (hwndParent, OS.SB_VERT, info, true); + return code; + } + } + return callWindowProc (hwnd, msg, wParam, lParam); + } + return super.windowProc (hwnd, msg, wParam, lParam); +} + +LRESULT WM_CHAR (int wParam, int lParam) { + LRESULT result = super.WM_CHAR (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. The tree control beeps + * in WM_CHAR when the search for the item that + * matches the key stroke fails. This is the + * standard tree behavior but is unexpected when + * the key that was typed was ESC, CR or SPACE. + * The fix is to avoid calling the tree window + * proc in these cases. + */ + switch (wParam) { + case ' ': { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem !is 0) { + hAnchor = hItem; + OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hItem); + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE | OS.TVIF_PARAM; + tvItem.hItem = hItem; + if ((style & DWT.CHECK) !is 0) { + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + int state = tvItem.state >> 12; + if ((state & 0x1) !is 0) { + state++; + } else { + --state; + } + tvItem.state = state << 12; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + if (!OS.IsWinCE) { + int id = hItem; + if (OS.COMCTL32_MAJOR >= 6) { + id = OS.SendMessage (handle, OS.TVM_MAPHTREEITEMTOACCID, hItem, 0); + } + OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, id); + } + } + tvItem.stateMask = OS.TVIS_SELECTED; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((style & DWT.MULTI) !is 0 && OS.GetKeyState (OS.VK_CONTROL) < 0) { + if ((tvItem.state & OS.TVIS_SELECTED) !is 0) { + tvItem.state &= ~OS.TVIS_SELECTED; + } else { + tvItem.state |= OS.TVIS_SELECTED; + } + } else { + tvItem.state |= OS.TVIS_SELECTED; + } + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + TreeItem item = _getItem (hItem, tvItem.lParam); + Event event = new Event (); + event.item = item; + postEvent (DWT.Selection, event); + if ((style & DWT.CHECK) !is 0) { + event = new Event (); + event.item = item; + event.detail = DWT.CHECK; + postEvent (DWT.Selection, event); + } + } + return LRESULT.ZERO; + } + case DWT.CR: { + /* + * Feature in Windows. Windows sends NM_RETURN from WM_KEYDOWN + * instead of using WM_CHAR. This means that application code + * that expects to consume the key press and therefore avoid a + * DWT.DefaultSelection event from WM_CHAR will fail. The fix + * is to implement DWT.DefaultSelection in WM_CHAR instead of + * using NM_RETURN. + */ + Event event = new Event (); + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem !is 0) event.item = _getItem (hItem); + postEvent (DWT.DefaultSelection, event); + return LRESULT.ZERO; + } + case DWT.ESC: + return LRESULT.ZERO; + } + return result; +} + +LRESULT WM_ERASEBKGND (int wParam, int lParam) { + LRESULT result = super.WM_ERASEBKGND (wParam, lParam); + if ((style & DWT.DOUBLE_BUFFERED) !is 0) return LRESULT.ONE; + if (findImageControl () !is null) return LRESULT.ONE; + return result; +} + +LRESULT WM_GETOBJECT (int wParam, int lParam) { + /* + * Ensure that there is an accessible object created for this + * control because support for checked item and tree column + * accessibility is temporarily implemented in the accessibility + * package. + */ + if ((style & DWT.CHECK) !is 0 || hwndParent !is 0) { + if (accessible is null) accessible = new_Accessible (this); + } + return super.WM_GETOBJECT (wParam, lParam); +} + +LRESULT WM_KEYDOWN (int wParam, int lParam) { + LRESULT result = super.WM_KEYDOWN (wParam, lParam); + if (result !is null) return result; + switch (wParam) { + case OS.VK_SPACE: + /* + * Ensure that the window proc does not process VK_SPACE + * so that it can be handled in WM_CHAR. This allows the + * application to cancel an operation that is normally + * performed in WM_KEYDOWN from WM_CHAR. + */ + return LRESULT.ZERO; + case OS.VK_ADD: + if (OS.GetKeyState (OS.VK_CONTROL) < 0) { + if (hwndHeader !is 0) { + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + TreeColumn [] newColumns = new TreeColumn [count]; + System.arraycopy (columns, 0, newColumns, 0, count); + for (int i=0; i<count; i++) { + TreeColumn column = newColumns [i]; + if (!column.isDisposed () && column.getResizable ()) { + column.pack (); + } + } + } + } + break; + case OS.VK_UP: + case OS.VK_DOWN: + case OS.VK_PRIOR: + case OS.VK_NEXT: + case OS.VK_HOME: + case OS.VK_END: { + OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0); + if ((style & DWT.SINGLE) !is 0) break; + if (OS.GetKeyState (OS.VK_SHIFT) < 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem !is 0) { + if (hAnchor is 0) hAnchor = hItem; + ignoreSelect = ignoreDeselect = true; + int code = callWindowProc (handle, OS.WM_KEYDOWN, wParam, lParam); + ignoreSelect = ignoreDeselect = false; + int hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_SELECTED; + int hDeselectItem = hItem; + RECT rect1 = new RECT (); + rect1.left = hAnchor; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect1); + RECT rect2 = new RECT (); + rect2.left = hDeselectItem; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect2); + int flags = rect1.top < rect2.top ? OS.TVGN_PREVIOUSVISIBLE : OS.TVGN_NEXTVISIBLE; + while (hDeselectItem !is hAnchor) { + tvItem.hItem = hDeselectItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + hDeselectItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hDeselectItem); + } + int hSelectItem = hAnchor; + rect1.left = hNewItem; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect1); + rect2.left = hSelectItem; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect2); + tvItem.state = OS.TVIS_SELECTED; + flags = rect1.top < rect2.top ? OS.TVGN_PREVIOUSVISIBLE : OS.TVGN_NEXTVISIBLE; + while (hSelectItem !is hNewItem) { + tvItem.hItem = hSelectItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + hSelectItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hSelectItem); + } + tvItem.hItem = hNewItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + tvItem.hItem = hNewItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + Event event = new Event (); + event.item = _getItem (hNewItem, tvItem.lParam); + postEvent (DWT.Selection, event); + return new LRESULT (code); + } + } + if (OS.GetKeyState (OS.VK_CONTROL) < 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hItem !is 0) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_SELECTED; + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + bool oldSelected = (tvItem.state & OS.TVIS_SELECTED) !is 0; + int hNewItem = 0; + switch (wParam) { + case OS.VK_UP: + hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUSVISIBLE, hItem); + break; + case OS.VK_DOWN: + hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); + break; + case OS.VK_HOME: + hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + break; + case OS.VK_PRIOR: + hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + if (hNewItem is hItem) { + OS.SendMessage (handle, OS.WM_VSCROLL, OS.SB_PAGEUP, 0); + hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + } + break; + case OS.VK_NEXT: + RECT rect = new RECT (), clientRect = new RECT (); + OS.GetClientRect (handle, clientRect); + hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + do { + int hVisible = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hNewItem); + if (hVisible is 0) break; + rect.left = hVisible; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect); + if (rect.bottom > clientRect.bottom) break; + if ((hNewItem = hVisible) is hItem) { + OS.SendMessage (handle, OS.WM_VSCROLL, OS.SB_PAGEDOWN, 0); + } + } while (hNewItem !is 0); + break; + case OS.VK_END: + hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_LASTVISIBLE, 0); + break; + } + if (hNewItem !is 0) { + OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hNewItem); + tvItem.hItem = hNewItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + bool newSelected = (tvItem.state & OS.TVIS_SELECTED) !is 0; + bool redraw = !newSelected && drawCount is 0 && OS.IsWindowVisible (handle); + if (redraw) { + OS.UpdateWindow (handle); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + hSelect = hNewItem; + ignoreSelect = true; + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hNewItem); + ignoreSelect = false; + hSelect = 0; + if (oldSelected) { + tvItem.state = OS.TVIS_SELECTED; + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + if (!newSelected) { + tvItem.state = 0; + tvItem.hItem = hNewItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + if (redraw) { + RECT rect1 = new RECT (), rect2 = new RECT (); + rect1.left = hItem; rect2.left = hNewItem; + int fItemRect = (style & DWT.FULL_SELECTION) !is 0 ? 0 : 1; + if (hooks (DWT.EraseItem) || hooks (DWT.PaintItem)) fItemRect = 0; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) fItemRect = 0; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, fItemRect, rect1); + OS.SendMessage (handle, OS.TVM_GETITEMRECT, fItemRect, rect2); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, rect1, true); + OS.InvalidateRect (handle, rect2, true); + OS.UpdateWindow (handle); + } + return LRESULT.ZERO; + } + } + } + int code = callWindowProc (handle, OS.WM_KEYDOWN, wParam, lParam); + hAnchor = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + return new LRESULT (code); + } + } + return result; +} + +LRESULT WM_KILLFOCUS (int wParam, int lParam) { + /* + * Bug in Windows. When a tree item that has an image + * with alpha is expanded or collapsed, the area where + * the image is drawn is not erased before it is drawn. + * This means that the image gets darker each time. + * The fix is to redraw the selection. + * + * Feature in Windows. When multiple item have + * the TVIS_SELECTED state, Windows redraws only + * the focused item in the color used to show the + * selection when the tree loses or gains focus. + * The fix is to force Windows to redraw the + * selection when focus is gained or lost. + */ + bool redraw = (style & DWT.MULTI) !is 0; + if (!redraw) { + if (!OS.IsWinCE && OS.COMCTL32_MAJOR >= 6) { + if (imageList !is null) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_FULLROWSELECT) is 0) { + redraw = true; + } + } + } + } + if (redraw) redrawSelection (); + return super.WM_KILLFOCUS (wParam, lParam); +} + +LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) { + TVHITTESTINFO lpht = new TVHITTESTINFO (); + lpht.x = (short) (lParam & 0xFFFF); + lpht.y = (short) (lParam >> 16); + OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); + if (lpht.hItem !is 0) { + if ((style & DWT.CHECK) !is 0) { + if ((lpht.flags & OS.TVHT_ONITEMSTATEICON) !is 0) { + Display display = this.display; + display.captureChanged = false; + sendMouseEvent (DWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam); + if (!sendMouseEvent (DWT.MouseDoubleClick, 1, handle, OS.WM_LBUTTONDBLCLK, wParam, lParam)) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + OS.SetFocus (handle); + TVITEM tvItem = new TVITEM (); + tvItem.hItem = lpht.hItem; + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + int state = tvItem.state >> 12; + if ((state & 0x1) !is 0) { + state++; + } else { + --state; + } + tvItem.state = state << 12; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + if (!OS.IsWinCE) { + int id = tvItem.hItem; + if (OS.COMCTL32_MAJOR >= 6) { + id = OS.SendMessage (handle, OS.TVM_MAPHTREEITEMTOACCID, tvItem.hItem, 0); + } + OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, id); + } + Event event = new Event (); + event.item = _getItem (tvItem.hItem, tvItem.lParam); + event.detail = DWT.CHECK; + postEvent (DWT.Selection, event); + return LRESULT.ZERO; + } + } + } + LRESULT result = super.WM_LBUTTONDBLCLK (wParam, lParam); + if (result is LRESULT.ZERO) return result; + if (lpht.hItem !is 0) { + if ((style & DWT.FULL_SELECTION) !is 0 || (lpht.flags & OS.TVHT_ONITEM) !is 0) { + Event event = new Event (); + event.item = _getItem (lpht.hItem); + postEvent (DWT.DefaultSelection, event); + } + } + return result; +} + +LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { + /* + * In a multi-select tree, if the user is collapsing a subtree that + * contains selected items, clear the selection from these items and + * issue a selection event. Only items that are selected and visible + * are cleared. This code also runs in the case when the white space + * below the last item is selected. + */ + TVHITTESTINFO lpht = new TVHITTESTINFO (); + lpht.x = (short) (lParam & 0xFFFF); + lpht.y = (short) (lParam >> 16); + OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); + if (lpht.hItem is 0 || (lpht.flags & OS.TVHT_ONITEMBUTTON) !is 0) { + Display display = this.display; + display.captureChanged = false; + if (!sendMouseEvent (DWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam)) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + bool fixSelection = false, deselected = false; + if (lpht.hItem !is 0 && (style & DWT.MULTI) !is 0) { + int hSelection = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hSelection !is 0) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.hItem = lpht.hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((tvItem.state & OS.TVIS_EXPANDED) !is 0) { + fixSelection = true; + tvItem.stateMask = OS.TVIS_SELECTED; + int hNext = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, lpht.hItem); + while (hNext !is 0) { + tvItem.hItem = hNext; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((tvItem.state & OS.TVIS_SELECTED) !is 0) deselected = true; + tvItem.state = 0; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + int hItem = hNext = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hNext); + while (hItem !is 0 && hItem !is lpht.hItem) { + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hItem); + } + if (hItem is 0) break; + } + } + } + } + dragStarted = gestureCompleted = false; + if (fixSelection) ignoreDeselect = ignoreSelect = lockSelection = true; + int code = callWindowProc (handle, OS.WM_LBUTTONDOWN, wParam, lParam); + if (fixSelection) ignoreDeselect = ignoreSelect = lockSelection = false; + if (dragStarted) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + } + if (deselected) { + Event event = new Event (); + event.item = _getItem (lpht.hItem); + postEvent (DWT.Selection, event); + } + return new LRESULT (code); + } + + /* Look for check/uncheck */ + if ((style & DWT.CHECK) !is 0) { + if ((lpht.flags & OS.TVHT_ONITEMSTATEICON) !is 0) { + Display display = this.display; + display.captureChanged = false; + if (!sendMouseEvent (DWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam)) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + OS.SetFocus (handle); + TVITEM tvItem = new TVITEM (); + tvItem.hItem = lpht.hItem; + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + int state = tvItem.state >> 12; + if ((state & 0x1) !is 0) { + state++; + } else { + --state; + } + tvItem.state = state << 12; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + if (!OS.IsWinCE) { + int id = tvItem.hItem; + if (OS.COMCTL32_MAJOR >= 6) { + id = OS.SendMessage (handle, OS.TVM_MAPHTREEITEMTOACCID, tvItem.hItem, 0); + } + OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, id); + } + Event event = new Event (); + event.item = _getItem (tvItem.hItem, tvItem.lParam); + event.detail = DWT.CHECK; + postEvent (DWT.Selection, event); + return LRESULT.ZERO; + } + } + + /* Process the mouse when an item is not selected */ + if ((style & DWT.FULL_SELECTION) is 0) { + if ((lpht.flags & OS.TVHT_ONITEM) is 0) { + Display display = this.display; + display.captureChanged = false; + if (!sendMouseEvent (DWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam)) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + int code = callWindowProc (handle, OS.WM_LBUTTONDOWN, wParam, lParam); + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return new LRESULT (code); + } + } + + /* Get the selected state of the item under the mouse */ + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_SELECTED; + bool hittestSelected = false, focused = false; + if ((style & DWT.MULTI) !is 0) { + tvItem.hItem = lpht.hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + hittestSelected = (tvItem.state & OS.TVIS_SELECTED) !is 0; + focused = OS.GetFocus () is handle; + } + + /* Get the selected state of the last selected item */ + bool redraw = false; + int hOldItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if ((style & DWT.MULTI) !is 0) { + tvItem.hItem = hOldItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + + /* Check for CONTROL or drag selection */ + if (hittestSelected || (wParam & OS.MK_CONTROL) !is 0) { + /* + * Feature in Windows. When the tree is not drawing focus + * and the user selects a tree item using while the CONTROL + * key is down, the tree window proc sends WM_UPDATEUISTATE + * to the top level window, causing controls within the shell + * to redraw. When drag detect is enabled, the tree window + * proc runs a modal loop that allows WM_PAINT messages to be + * delivered during WM_LBUTTONDOWN. When WM_SETREDRAW is used + * to disable drawing for the tree and a WM_PAINT happens for + * a parent of the tree (or a sibling that overlaps), the parent + * will draw on top of the tree. If WM_SETREDRAW is turned back + * on without redrawing the entire tree, pixel corruption occurs. + * This case only seems to happen when the tree has been given + * focus from WM_MOUSEACTIVATE of the shell. The fix is to + * detect that WM_UPDATEUISTATE will be sent and avoid using + * WM_SETREDRAW to disable drawing. + * + * NOTE: Any redraw of a parent (or sibling) will be dispatched + * during the modal drag detect loop. This code only fixes the + * case where the tree causes a redraw from WM_UPDATEUISTATE. + * In DWT, the InvalidateRect() that causes the pixel corruption + * is found in Composite.WM_UPDATEUISTATE(). + */ + int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + if ((uiState & OS.UISF_HIDEFOCUS) is 0) { + redraw = focused && drawCount is 0 && OS.IsWindowVisible (handle); + } + if (redraw) { + OS.UpdateWindow (handle); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + } else { + deselectAll (); + } + } + + /* Do the selection */ + Display display = this.display; + display.captureChanged = false; + if (!sendMouseEvent (DWT.MouseDown, 1, handle, OS.WM_LBUTTONDOWN, wParam, lParam)) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + hSelect = lpht.hItem; + dragStarted = gestureCompleted = false; + ignoreDeselect = ignoreSelect = true; + int code = callWindowProc (handle, OS.WM_LBUTTONDOWN, wParam, lParam); + int hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + /* + * Feature in Windows. When the tree has the style + * TVS_FULLROWSELECT, the background color for the + * entire row is filled when an item is painted, + * drawing on top of any custom drawing. The fix + * is to emulate TVS_FULLROWSELECT. + */ + if ((style & DWT.FULL_SELECTION) !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_FULLROWSELECT) is 0) { + if (hNewItem is hOldItem && lpht.hItem !is hOldItem) { + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, lpht.hItem); + hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + } + if (!dragStarted && lpht.hItem !is 0 && (state & DRAG_DETECT) !is 0 && hooks (DWT.DragDetect)) { + dragStarted = dragDetect (handle, lpht.x, lpht.y, false, null, null); + } + } + } + ignoreDeselect = ignoreSelect = false; + hSelect = 0; + if (dragStarted) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + } + + /* + * Feature in Windows. When the old and new focused item + * are the same, Windows does not check to make sure that + * the item is actually selected, not just focused. The + * fix is to force the item to draw selected by setting + * the state mask. This is only necessary when the tree + * is single select. + */ + if ((style & DWT.SINGLE) !is 0) { + if (hOldItem is hNewItem) { + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.state = OS.TVIS_SELECTED; + tvItem.stateMask = OS.TVIS_SELECTED; + tvItem.hItem = hNewItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + + /* Reselect the last item that was unselected */ + if ((style & DWT.MULTI) !is 0) { + + /* Check for CONTROL and reselect the last item */ + if (hittestSelected || (wParam & OS.MK_CONTROL) !is 0) { + if (hOldItem is hNewItem && hOldItem is lpht.hItem) { + if ((wParam & OS.MK_CONTROL) !is 0) { + tvItem.state ^= OS.TVIS_SELECTED; + if (dragStarted) tvItem.state = OS.TVIS_SELECTED; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } else { + if ((tvItem.state & OS.TVIS_SELECTED) !is 0) { + tvItem.state = OS.TVIS_SELECTED; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + if ((wParam & OS.MK_CONTROL) !is 0 && !dragStarted) { + if (hittestSelected) { + tvItem.state = 0; + tvItem.hItem = lpht.hItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + } + if (redraw) { + RECT rect1 = new RECT (), rect2 = new RECT (); + rect1.left = hOldItem; rect2.left = hNewItem; + int fItemRect = (style & DWT.FULL_SELECTION) !is 0 ? 0 : 1; + if (hooks (DWT.EraseItem) || hooks (DWT.PaintItem)) fItemRect = 0; + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) fItemRect = 0; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, fItemRect, rect1); + OS.SendMessage (handle, OS.TVM_GETITEMRECT, fItemRect, rect2); + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, rect1, true); + OS.InvalidateRect (handle, rect2, true); + OS.UpdateWindow (handle); + } + } + + /* Check for SHIFT or normal select and deselect/reselect items */ + if ((wParam & OS.MK_CONTROL) is 0) { + if (!hittestSelected || !dragStarted) { + tvItem.state = 0; + int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC); + OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc); + if ((style & DWT.VIRTUAL) !is 0) { + int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + deselect (hItem, tvItem, hNewItem); + } else { + for (int i=0; i<items.length; i++) { + TreeItem item = items [i]; + if (item !is null && item.handle !is hNewItem) { + tvItem.hItem = item.handle; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + } + tvItem.hItem = hNewItem; + tvItem.state = OS.TVIS_SELECTED; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc); + if ((wParam & OS.MK_SHIFT) !is 0) { + RECT rect1 = new RECT (); + if (hAnchor is 0) hAnchor = hNewItem; + rect1.left = hAnchor; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect1) !is 0) { + RECT rect2 = new RECT (); + rect2.left = hNewItem; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect2); + int flags = rect1.top < rect2.top ? OS.TVGN_NEXTVISIBLE : OS.TVGN_PREVIOUSVISIBLE; + tvItem.state = OS.TVIS_SELECTED; + int hItem = tvItem.hItem = hAnchor; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + while (hItem !is hNewItem) { + tvItem.hItem = hItem; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hItem); + } + } + } + } + } + } + if ((wParam & OS.MK_SHIFT) is 0) hAnchor = hNewItem; + + /* Issue notification */ + if (!gestureCompleted) { + tvItem.hItem = hNewItem; + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + Event event = new Event (); + event.item = _getItem (tvItem.hItem, tvItem.lParam); + postEvent (DWT.Selection, event); + } + gestureCompleted = false; + + /* + * Feature in Windows. Inside WM_LBUTTONDOWN and WM_RBUTTONDOWN, + * the widget starts a modal loop to determine if the user wants + * to begin a drag/drop operation or marquee select. Unfortunately, + * this modal loop eats the corresponding mouse up. The fix is to + * detect the cases when the modal loop has eaten the mouse up and + * issue a fake mouse up. + */ + if (dragStarted) { + sendDragEvent (1, (short) (lParam & 0xFFFF), (short) (lParam >> 16)); + } else { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_DISABLEDRAGDROP) is 0) { + sendMouseEvent (DWT.MouseUp, 1, handle, OS.WM_LBUTTONUP, wParam, lParam); + } + } + dragStarted = false; + return new LRESULT (code); +} + +LRESULT WM_MOUSEMOVE (int wParam, int lParam) { + Display display = this.display; + LRESULT result = super.WM_MOUSEMOVE (wParam, lParam); + if (result !is null) return result; + if (itemToolTipHandle !is 0 && hwndHeader !is 0) { + /* + * Bug in Windows. On some machines that do not have XBUTTONs, + * the MK_XBUTTON1 and OS.MK_XBUTTON2 bits are sometimes set, + * causing mouse capture to become stuck. The fix is to test + * for the extra buttons only when they exist. + */ + int mask = OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON; + if (display.xMouse) mask |= OS.MK_XBUTTON1 | OS.MK_XBUTTON2; + if (((wParam & 0xFFFF) & mask) is 0) { + TVHITTESTINFO lpht = new TVHITTESTINFO (); + lpht.x = (short) (lParam & 0xFFFF); + lpht.y = (short) (lParam >> 16); + OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); + if (lpht.hItem !is 0) { + int hDC = OS.GetDC (handle); + int oldFont = 0, newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + POINT pt = new POINT(); + pt.x = lpht.x; + pt.y = lpht.y; + RECT rect = new RECT (); + OS.GetClientRect (hwndParent, rect); + OS.MapWindowPoints (hwndParent, handle, rect, 2); + TreeItem item = _getItem (lpht.hItem); + int index = 0, count = Math.max (1, OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0)); + int [] order = new int [count]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); + while (index < count) { + int hFont = item.cellFont !is null ? item.cellFont [order [index]] : -1; + if (hFont is -1) hFont = item.font; + if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); + RECT cellRect = item.getBounds (order [index], true, false, true, false, true, hDC); + if (hFont !is -1) OS.SelectObject (hDC, hFont); + if (cellRect.left > rect.right) break; + cellRect.right = Math.min (cellRect.right, rect.right); + if (OS.PtInRect (cellRect, pt)) { + RECT textRect = item.getBounds (order [index], true, false, false, false, false, hDC); + if (textRect.right > cellRect.right) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.hwnd = handle; + lpti.uId = handle; + lpti.uFlags = OS.TTF_SUBCLASS | OS.TTF_TRANSPARENT; + lpti.left = cellRect.left; + lpti.top = cellRect.top; + lpti.right = cellRect.right; + lpti.bottom = cellRect.bottom; + OS.SendMessage (itemToolTipHandle, OS.TTM_NEWTOOLRECT, 0, lpti); + } + break; + } + index++; + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + } + } + } + return result; +} + +LRESULT WM_MOVE (int wParam, int lParam) { + if (ignoreResize) return null; + return super.WM_MOVE (wParam, lParam); +} + +LRESULT WM_RBUTTONDOWN (int wParam, int lParam) { + /* + * Feature in Windows. The receiver uses WM_RBUTTONDOWN + * to initiate a drag/drop operation depending on how the + * user moves the mouse. If the user clicks the right button, + * without moving the mouse, the tree consumes the corresponding + * WM_RBUTTONUP. The fix is to avoid calling the window proc for + * the tree. + */ + Display display = this.display; + display.captureChanged = false; + if (!sendMouseEvent (DWT.MouseDown, 3, handle, OS.WM_RBUTTONDOWN, wParam, lParam)) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is handle) OS.SetCapture (handle); + } + return LRESULT.ZERO; + } + /* + * This code is intentionally commented. + */ +// if (OS.GetCapture () !is handle) OS.SetCapture (handle); + setFocus (); + + /* + * Feature in Windows. When the user selects a tree item + * with the right mouse button, the item remains selected + * only as long as the user does not release or move the + * mouse. As soon as this happens, the selection snaps + * back to the previous selection. This behavior can be + * observed in the Explorer but is not instantly apparent + * because the Explorer explicitly sets the selection when + * the user chooses a menu item. If the user cancels the + * menu, the selection snaps back. The fix is to avoid + * calling the window proc and do the selection ourselves. + * This behavior is consistent with the table. + */ + TVHITTESTINFO lpht = new TVHITTESTINFO (); + lpht.x = (short) (lParam & 0xFFFF); + lpht.y = (short) (lParam >> 16); + OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); + if (lpht.hItem !is 0) { + int flags = OS.TVHT_ONITEMICON | OS.TVHT_ONITEMLABEL; + if ((style & DWT.FULL_SELECTION) !is 0 || (lpht.flags & flags) !is 0) { + if ((wParam & (OS.MK_CONTROL | OS.MK_SHIFT)) is 0) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_SELECTED; + tvItem.hItem = lpht.hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + if ((tvItem.state & OS.TVIS_SELECTED) is 0) { + ignoreSelect = true; + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, 0); + ignoreSelect = false; + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, lpht.hItem); + } + } + } + } + return LRESULT.ZERO; +} + +LRESULT WM_PAINT (int wParam, int lParam) { + if (shrink && !ignoreShrink) { + /* Resize the item array to fit the last item */ + int count = items.length - 1; + while (count >= 0) { + if (items [count] !is null) break; + --count; + } + count++; + if (items.length > 4 && items.length - count > 3) { + int length = Math.max (4, (count + 3) / 4 * 4); + TreeItem [] newItems = new TreeItem [length]; + System.arraycopy (items, 0, newItems, 0, count); + items = newItems; + } + shrink = false; + } + if ((style & DWT.DOUBLE_BUFFERED) !is 0 || findImageControl () !is null) { + bool doubleBuffer = true; + if (EXPLORER_THEME) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + int exStyle = OS.SendMessage (handle, OS.TVM_GETEXTENDEDSTYLE, 0, 0); + if ((exStyle & OS.TVS_EX_DOUBLEBUFFER) !is 0) doubleBuffer = false; + } + } + if (doubleBuffer) { + GC gc = null; + int paintDC = 0; + PAINTSTRUCT ps = new PAINTSTRUCT (); + bool hooksPaint = hooks (DWT.Paint); + if (hooksPaint) { + GCData data = new GCData (); + data.ps = ps; + data.hwnd = handle; + gc = GC.win32_new (this, data); + paintDC = gc.handle; + } else { + paintDC = OS.BeginPaint (handle, ps); + } + int width = ps.right - ps.left; + int height = ps.bottom - ps.top; + if (width !is 0 && height !is 0) { + int hDC = OS.CreateCompatibleDC (paintDC); + POINT lpPoint1 = new POINT (), lpPoint2 = new POINT (); + OS.SetWindowOrgEx (hDC, ps.left, ps.top, lpPoint1); + OS.SetBrushOrgEx (hDC, ps.left, ps.top, lpPoint2); + int hBitmap = OS.CreateCompatibleBitmap (paintDC, width, height); + int hOldBitmap = OS.SelectObject (hDC, hBitmap); + RECT rect = new RECT (); + OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); + drawBackground (hDC, rect); + callWindowProc (handle, OS.WM_PAINT, hDC, 0); + OS.SetWindowOrgEx (hDC, lpPoint1.x, lpPoint1.y, null); + OS.SetBrushOrgEx (hDC, lpPoint2.x, lpPoint2.y, null); + OS.BitBlt (paintDC, ps.left, ps.top, width, height, hDC, 0, 0, OS.SRCCOPY); + OS.SelectObject (hDC, hOldBitmap); + OS.DeleteObject (hBitmap); + OS.DeleteObject (hDC); + if (hooksPaint) { + Event event = new Event (); + event.gc = gc; + event.x = ps.left; + event.y = ps.top; + event.width = ps.right - ps.left; + event.height = ps.bottom - ps.top; + sendEvent (DWT.Paint, event); + // widget could be disposed at this point + event.gc = null; + } + } + if (hooksPaint) { + gc.dispose (); + } else { + OS.EndPaint (handle, ps); + } + return LRESULT.ZERO; + } + } + return super.WM_PAINT (wParam, lParam); +} + +LRESULT WM_PRINTCLIENT (int wParam, int lParam) { + LRESULT result = super.WM_PRINTCLIENT (wParam, lParam); + if (result !is null) return result; + /* + * Feature in Windows. For some reason, when WM_PRINT is used + * to capture an image of a hierarchy that contains a tree with + * columns, the clipping that is used to stop the first column + * from drawing on top of subsequent columns stops the first + * column and the tree lines from drawing. This does not happen + * during WM_PAINT. The fix is to draw without clipping and + * then draw the rest of the columns on top. Since the drawing + * is happening in WM_PRINTCLIENT, the redrawing is not visible. + */ + printClient = true; + int code = callWindowProc (handle, OS.WM_PRINTCLIENT, wParam, lParam); + printClient = false; + return new LRESULT (code); +} + +LRESULT WM_SETFOCUS (int wParam, int lParam) { + /* + * Bug in Windows. When a tree item that has an image + * with alpha is expanded or collapsed, the area where + * the image is drawn is not erased before it is drawn. + * This means that the image gets darker each time. + * The fix is to redraw the selection. + * + * Feature in Windows. When multiple item have + * the TVIS_SELECTED state, Windows redraws only + * the focused item in the color used to show the + * selection when the tree loses or gains focus. + * The fix is to force Windows to redraw the + * selection when focus is gained or lost. + */ + bool redraw = (style & DWT.MULTI) !is 0; + if (!redraw) { + if (!OS.IsWinCE && OS.COMCTL32_MAJOR >= 6) { + if (imageList !is null) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_FULLROWSELECT) is 0) { + redraw = true; + } + } + } + } + if (redraw) redrawSelection (); + return super.WM_SETFOCUS (wParam, lParam); +} + +LRESULT WM_SETFONT (int wParam, int lParam) { + LRESULT result = super.WM_SETFONT (wParam, lParam); + if (result !is null) return result; + if (hwndHeader !is 0) { + /* + * Bug in Windows. When a header has a sort indicator + * triangle, Windows resizes the indicator based on the + * size of the n-1th font. The fix is to always make + * the n-1th font be the default. This makes the sort + * indicator always be the default size. + */ + OS.SendMessage (hwndHeader, OS.WM_SETFONT, 0, lParam); + OS.SendMessage (hwndHeader, OS.WM_SETFONT, wParam, lParam); + } + if (itemToolTipHandle !is 0) { + OS.SendMessage (itemToolTipHandle, OS.WM_SETFONT, wParam, lParam); + } + if (headerToolTipHandle !is 0) { + OS.SendMessage (headerToolTipHandle, OS.WM_SETFONT, wParam, lParam); + } + return result; +} + +LRESULT WM_SETREDRAW (int wParam, int lParam) { + LRESULT result = super.WM_SETREDRAW (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. Under certain circumstances, when + * WM_SETREDRAW is used to turn off drawing and then + * TVM_GETITEMRECT is sent to get the bounds of an item + * that is not inside the client area, Windows segment + * faults. The fix is to call the default window proc + * rather than the default tree proc. + * + * NOTE: This problem is intermittent and happens on + * Windows Vista running under the theme manager. + */ + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + int code = OS.DefWindowProc (handle, OS.WM_SETREDRAW, wParam, lParam); + return code is 0 ? LRESULT.ZERO : new LRESULT (code); + } + return result; +} + +LRESULT WM_SIZE (int wParam, int lParam) { + /* + * Bug in Windows. When TVS_NOHSCROLL is set when the + * size of the tree is zero, the scroll bar is shown the + * next time the tree resizes. The fix is to hide the + * scroll bar every time the tree is resized. + */ + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_NOHSCROLL) !is 0) { + if (!OS.IsWinCE) OS.ShowScrollBar (handle, OS.SB_HORZ, false); + } + /* + * Bug in Windows. On Vista, when the Explorer theme + * is used with a full selection tree, when the tree + * is resized to be smaller, the rounded right edge + * of the selected items is not drawn. The fix is the + * redraw the entire tree. + */ + if (EXPLORER_THEME) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + if ((style & DWT.FULL_SELECTION) !is 0) { + OS.InvalidateRect (handle, null, false); + } + } + } + if (ignoreResize) return null; + return super.WM_SIZE (wParam, lParam); +} + +LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) { + LRESULT result = super.WM_SYSCOLORCHANGE (wParam, lParam); + if (result !is null) return result; + /* + * Bug in Windows. When the tree is using the explorer + * theme, it does not use COLOR_WINDOW_TEXT for the + * default foreground color. The fix is to explicitly + * set the foreground. + */ + if (explorerTheme) { + if (foreground is -1) setForegroundPixel (-1); + } + if ((style & DWT.CHECK) !is 0) setCheckboxImageList (); + return result; +} + +LRESULT wmColorChild (int wParam, int lParam) { + if (findImageControl () !is null) { + if (OS.COMCTL32_MAJOR < 6) { + return super.wmColorChild (wParam, lParam); + } + return new LRESULT (OS.GetStockObject (OS.NULL_BRUSH)); + } + /* + * Feature in Windows. Tree controls send WM_CTLCOLOREDIT + * to allow application code to change the default colors. + * This is undocumented and conflicts with TVM_SETTEXTCOLOR + * and TVM_SETBKCOLOR, the documented way to do this. The + * fix is to ignore WM_CTLCOLOREDIT messages from trees. + */ + return null; +} + +LRESULT wmNotify (NMHDR hdr, int wParam, int lParam) { + if (hdr.hwndFrom is itemToolTipHandle && hwndHeader !is 0) { + if (!OS.IsWinCE) { + switch (hdr.code) { + case OS.TTN_POP: { + if (display.isXMouseActive ()) { + Shell shell = getShell (); + shell.lockToolTipControl = null; + } + break; + } + case OS.TTN_SHOW: { + if (display.isXMouseActive ()) { + Shell shell = getShell (); + shell.lockToolTipControl = this; + } + int pos = OS.GetMessagePos (); + POINT pt = new POINT(); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (handle, pt); + TVHITTESTINFO lpht = new TVHITTESTINFO (); + lpht.x = pt.x; + lpht.y = pt.y; + OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); + if (lpht.hItem !is 0) { + int hDC = OS.GetDC (handle); + int oldFont = 0, newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + LRESULT result = null; + RECT rect = new RECT (); + OS.GetClientRect (hwndParent, rect); + OS.MapWindowPoints (hwndParent, handle, rect, 2); + TreeItem item = _getItem (lpht.hItem); + int index = 0, count = Math.max (1, OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0)); + int [] order = new int [count]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); + while (index < count) { + int hFont = item.cellFont !is null ? item.cellFont [order [index]] : -1; + if (hFont is -1) hFont = item.font; + if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); + RECT cellRect = item.getBounds (order [index], true, false, true, false, true, hDC); + if (hFont !is -1) OS.SelectObject (hDC, hFont); + if (cellRect.left > rect.right) break; + cellRect.right = Math.min (cellRect.right, rect.right); + if (OS.PtInRect (cellRect, pt)) { + RECT textRect = item.getBounds (order [index], true, false, false, false, false, hDC); + if (textRect.right > cellRect.right) { + OS.MapWindowPoints (handle, 0, textRect, 2); + int flags = OS.SWP_NOACTIVATE | OS.SWP_NOSIZE | OS.SWP_NOZORDER; + SetWindowPos (itemToolTipHandle, 0, textRect.left, textRect.top, 0, 0, flags); + result = LRESULT.ONE; + } + break; + } + index++; + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (handle, hDC); + if (result !is null) return result; + } + } + } + } + } + if (hdr.hwndFrom is hwndHeader) { + /* + * Feature in Windows. On NT, the automatically created + * header control is created as a UNICODE window, not an + * ANSI window despite the fact that the parent is created + * as an ANSI window. This means that it sends UNICODE + * notification messages to the parent window on NT for + * no good reason. The data and size in the NMHEADER and + * HDITEM structs is identical between the platforms so no + * different message is actually necessary. Despite this, + * Windows sends different messages. The fix is to look + * for both messages, despite the platform. This works + * because only one will be sent on either platform, never + * both. + */ + switch (hdr.code) { + case OS.HDN_BEGINTRACKW: + case OS.HDN_BEGINTRACKA: + case OS.HDN_DIVIDERDBLCLICKW: + case OS.HDN_DIVIDERDBLCLICKA: { + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + TreeColumn column = columns [phdn.iItem]; + if (column !is null && !column.getResizable ()) { + return LRESULT.ONE; + } + ignoreColumnMove = true; + switch (hdr.code) { + case OS.HDN_DIVIDERDBLCLICKW: + case OS.HDN_DIVIDERDBLCLICKA: + if (column !is null) column.pack (); + } + break; + } + case OS.NM_RELEASEDCAPTURE: { + if (!ignoreColumnMove) { + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + for (int i=0; i<count; i++) { + TreeColumn column = columns [i]; + column.updateToolTip (i); + } + updateImageList (); + } + ignoreColumnMove = false; + break; + } + case OS.HDN_BEGINDRAG: { + if (ignoreColumnMove) return LRESULT.ONE; + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + if (phdn.iItem !is -1) { + TreeColumn column = columns [phdn.iItem]; + if (column !is null && !column.getMoveable ()) { + ignoreColumnMove = true; + return LRESULT.ONE; + } + } + break; + } + case OS.HDN_ENDDRAG: { + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + if (phdn.iItem !is -1 && phdn.pitem !is 0) { + HDITEM pitem = new HDITEM (); + OS.MoveMemory (pitem, phdn.pitem, HDITEM.sizeof); + if ((pitem.mask & OS.HDI_ORDER) !is 0 && pitem.iOrder !is -1) { + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + int [] order = new int [count]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); + int index = 0; + while (index < order.length) { + if (order [index] is phdn.iItem) break; + index++; + } + if (index is order.length) index = 0; + if (index is pitem.iOrder) break; + int start = Math.min (index, pitem.iOrder); + int end = Math.max (index, pitem.iOrder); + RECT rect = new RECT (), headerRect = new RECT (); + OS.GetClientRect (handle, rect); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, order [start], headerRect); + rect.left = Math.max (rect.left, headerRect.left); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, order [end], headerRect); + rect.right = Math.min (rect.right, headerRect.right); + OS.InvalidateRect (handle, rect, true); + ignoreColumnMove = false; + for (int i=start; i<=end; i++) { + TreeColumn column = columns [order [i]]; + if (!column.isDisposed ()) { + column.postEvent (DWT.Move); + } + } + } + } + break; + } + case OS.HDN_ITEMCHANGINGW: + case OS.HDN_ITEMCHANGINGA: { + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + if (phdn.pitem !is 0) { + HDITEM newItem = new HDITEM (); + OS.MoveMemory (newItem, phdn.pitem, HDITEM.sizeof); + if ((newItem.mask & OS.HDI_WIDTH) !is 0) { + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + HDITEM oldItem = new HDITEM (); + oldItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, phdn.iItem, oldItem); + int deltaX = newItem.cxy - oldItem.cxy; + RECT headerRect = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, phdn.iItem, headerRect); + int gridWidth = linesVisible ? GRID_WIDTH : 0; + rect.left = headerRect.right - gridWidth; + int newX = rect.left + deltaX; + rect.right = Math.max (rect.right, rect.left + Math.abs (deltaX)); + if (explorerTheme || (findImageControl () !is null || hooks (DWT.EraseItem) || hooks (DWT.PaintItem))) { + OS.InvalidateRect (handle, rect, true); + OS.OffsetRect (rect, deltaX, 0); + OS.InvalidateRect (handle, rect, true); + } else { + int flags = OS.SW_INVALIDATE | OS.SW_ERASE; + OS.ScrollWindowEx (handle, deltaX, 0, rect, null, 0, null, flags); + } + if (OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, phdn.iItem, 0) !is 0) { + rect.left = headerRect.left; + rect.right = newX; + OS.InvalidateRect (handle, rect, true); + } + setScrollWidth (); + } + } + break; + } + case OS.HDN_ITEMCHANGEDW: + case OS.HDN_ITEMCHANGEDA: { + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + if (phdn.pitem !is 0) { + HDITEM pitem = new HDITEM (); + OS.MoveMemory (pitem, phdn.pitem, HDITEM.sizeof); + if ((pitem.mask & OS.HDI_WIDTH) !is 0) { + if (ignoreColumnMove) { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + int flags = OS.RDW_UPDATENOW | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (handle, null, 0, flags); + } else { + if ((style & DWT.DOUBLE_BUFFERED) is 0) { + int oldStyle = style; + style |= DWT.DOUBLE_BUFFERED; + OS.UpdateWindow (handle); + style = oldStyle; + } + } + } + TreeColumn column = columns [phdn.iItem]; + if (column !is null) { + column.updateToolTip (phdn.iItem); + column.sendEvent (DWT.Resize); + if (isDisposed ()) return LRESULT.ZERO; + int count = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + TreeColumn [] newColumns = new TreeColumn [count]; + System.arraycopy (columns, 0, newColumns, 0, count); + int [] order = new int [count]; + OS.SendMessage (hwndHeader, OS.HDM_GETORDERARRAY, count, order); + bool moved = false; + for (int i=0; i<count; i++) { + TreeColumn nextColumn = newColumns [order [i]]; + if (moved && !nextColumn.isDisposed ()) { + nextColumn.updateToolTip (order [i]); + nextColumn.sendEvent (DWT.Move); + } + if (nextColumn is column) moved = true; + } + } + } + setScrollWidth (); + } + break; + } + case OS.HDN_ITEMCLICKW: + case OS.HDN_ITEMCLICKA: { + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + TreeColumn column = columns [phdn.iItem]; + if (column !is null) { + column.postEvent (DWT.Selection); + } + break; + } + case OS.HDN_ITEMDBLCLICKW: + case OS.HDN_ITEMDBLCLICKA: { + NMHEADER phdn = new NMHEADER (); + OS.MoveMemory (phdn, lParam, NMHEADER.sizeof); + TreeColumn column = columns [phdn.iItem]; + if (column !is null) { + column.postEvent (DWT.DefaultSelection); + } + break; + } + } + } + return super.wmNotify (hdr, wParam, lParam); +} + +LRESULT wmNotifyChild (NMHDR hdr, int wParam, int lParam) { + switch (hdr.code) { + case OS.TVN_GETDISPINFOA: + case OS.TVN_GETDISPINFOW: { + NMTVDISPINFO lptvdi = new NMTVDISPINFO (); + OS.MoveMemory (lptvdi, lParam, NMTVDISPINFO.sizeof); + if ((style & DWT.VIRTUAL) !is 0) { + /* + * Feature in Windows. When a new tree item is inserted + * using TVM_INSERTITEM, a TVN_GETDISPINFO is sent before + * TVM_INSERTITEM returns and before the item is added to + * the items array. The fix is to check for null. + * + * NOTE: This only happens on XP with the version 6.00 of + * COMCTL32.DLL. + */ + bool checkVisible = true; + /* + * When an item is being deleted from a virtual tree, do not + * allow the application to provide data for a new item that + * becomes visible until the item has been removed from the + * items array. Because arbitrary application code can run + * during the callback, the items array might be accessed + * in an inconsistent state. Rather than answering the data + * right away, queue a redraw for later. + */ + if (!ignoreShrink) { + if (items !is null && lptvdi.lParam !is -1) { + if (items [lptvdi.lParam] !is null && items [lptvdi.lParam].cached) { + checkVisible = false; + } + } + } + if (checkVisible) { + if (drawCount !is 0 || !OS.IsWindowVisible (handle)) break; + RECT itemRect = new RECT (); + itemRect.left = lptvdi.hItem; + if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, itemRect) is 0) { + break; + } + RECT rect = new RECT (); + OS.GetClientRect (handle, rect); + if (!OS.IntersectRect (rect, rect, itemRect)) break; + if (ignoreShrink) { + OS.InvalidateRect (handle, rect, true); + break; + } + } + } + if (items is null) break; + /* + * Bug in Windows. If the lParam field of TVITEM + * is changed during custom draw using TVM_SETITEM, + * the lItemlParam field of the NMTVCUSTOMDRAW struct + * is not updated until the next custom draw. The + * fix is to query the field from the item instead + * of using the struct. + */ + int id = lptvdi.lParam; + if ((style & DWT.VIRTUAL) !is 0) { + if (id is -1) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + tvItem.hItem = lptvdi.hItem; + OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem); + id = tvItem.lParam; + } + } + TreeItem item = _getItem (lptvdi.hItem, id); + /* + * Feature in Windows. When a new tree item is inserted + * using TVM_INSERTITEM, a TVN_GETDISPINFO is sent before + * TVM_INSERTITEM returns and before the item is added to + * the items array. The fix is to check for null. + * + * NOTE: This only happens on XP with the version 6.00 of + * COMCTL32.DLL. + * + * Feature in Windows. When TVM_DELETEITEM is called with + * TVI_ROOT to remove all items from a tree, under certain + * circumstances, the tree sends TVN_GETDISPINFO for items + * that are about to be disposed. The fix is to check for + * disposed items. + */ + if (item is null) break; + if (item.isDisposed ()) break; + if (!item.cached) { + if ((style & DWT.VIRTUAL) !is 0) { + if (!checkData (item, false)) break; + } + if (painted) item.cached = true; + } + int index = 0; + if (hwndHeader !is 0) { + index = OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); + } + if ((lptvdi.mask & OS.TVIF_TEXT) !is 0) { + String string = null; + if (index is 0) { + string = item.text; + } else { + String [] strings = item.strings; + if (strings !is null) string = strings [index]; + } + if (string !is null) { + TCHAR buffer = new TCHAR (getCodePage (), string, false); + int byteCount = Math.min (buffer.length (), lptvdi.cchTextMax - 1) * TCHAR.sizeof; + OS.MoveMemory (lptvdi.pszText, buffer, byteCount); + OS.MoveMemory (lptvdi.pszText + byteCount, new byte [TCHAR.sizeof], TCHAR.sizeof); + lptvdi.cchTextMax = Math.min (lptvdi.cchTextMax, string.length () + 1); + } + } + if ((lptvdi.mask & (OS.TVIF_IMAGE | OS.TVIF_SELECTEDIMAGE)) !is 0) { + Image image = null; + if (index is 0) { + image = item.image; + } else { + Image [] images = item.images; + if (images !is null) image = images [index]; + } + lptvdi.iImage = lptvdi.iSelectedImage = OS.I_IMAGENONE; + if (image !is null) { + lptvdi.iImage = lptvdi.iSelectedImage = imageIndex (image, index); + } + if (explorerTheme && OS.IsWindowEnabled (handle)) { + if (findImageControl () !is null) { + lptvdi.iImage = lptvdi.iSelectedImage = OS.I_IMAGENONE; + } + } + } + OS.MoveMemory (lParam, lptvdi, NMTVDISPINFO.sizeof); + break; + } + case OS.NM_CUSTOMDRAW: { + if (hdr.hwndFrom is hwndHeader) break; + if (hooks (DWT.MeasureItem)) { + if (hwndHeader is 0) createParent (); + } + if (!customDraw && findImageControl () is null) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + if (sortColumn is null || sortDirection is DWT.NONE) { + break; + } + } + } + NMTVCUSTOMDRAW nmcd = new NMTVCUSTOMDRAW (); + OS.MoveMemory (nmcd, lParam, NMTVCUSTOMDRAW.sizeof); + switch (nmcd.dwDrawStage) { + case OS.CDDS_PREPAINT: return CDDS_PREPAINT (nmcd, wParam, lParam); + case OS.CDDS_ITEMPREPAINT: return CDDS_ITEMPREPAINT (nmcd, wParam, lParam); + case OS.CDDS_ITEMPOSTPAINT: return CDDS_ITEMPOSTPAINT (nmcd, wParam, lParam); + case OS.CDDS_POSTPAINT: return CDDS_POSTPAINT (nmcd, wParam, lParam); + } + break; + } + case OS.NM_DBLCLK: { + /* + * When the user double clicks on a tree item + * or a line beside the item, the window proc + * for the tree collapses or expand the branch. + * When application code associates an action + * with double clicking, then the tree expand + * is unexpected and unwanted. The fix is to + * avoid the operation by testing to see whether + * the mouse was inside a tree item. + */ + if (hooks (DWT.DefaultSelection)) { + POINT pt = new POINT (); + int pos = OS.GetMessagePos (); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (handle, pt); + TVHITTESTINFO lpht = new TVHITTESTINFO (); + lpht.x = pt.x; + lpht.y = pt.y; + OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht); + if (lpht.hItem !is 0 && (lpht.flags & OS.TVHT_ONITEM) !is 0) { + return LRESULT.ONE; + } + } + break; + } + /* + * Bug in Windows. On Vista, when TVM_SELECTITEM is called + * with TVGN_CARET in order to set the selection, for some + * reason, Windows deselects the previous two items that + * were selected. The fix is to stop the selection from + * changing on all but the item that is supposed to be + * selected. + */ + case OS.TVN_ITEMCHANGINGA: + case OS.TVN_ITEMCHANGINGW: { + if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) { + if ((style & DWT.MULTI) !is 0) { + if (hSelect !is 0) { + NMTVITEMCHANGE pnm = new NMTVITEMCHANGE (); + OS.MoveMemory (pnm, lParam, NMTVITEMCHANGE.sizeof); + if (hSelect is pnm.hItem) break; + return LRESULT.ONE; + } + } + } + break; + } + case OS.TVN_SELCHANGINGA: + case OS.TVN_SELCHANGINGW: { + if ((style & DWT.MULTI) !is 0) { + if (lockSelection) { + /* Save the old selection state for both items */ + TVITEM tvItem = new TVITEM (); + int offset1 = NMHDR.sizeof + 4; + OS.MoveMemory (tvItem, lParam + offset1, TVITEM.sizeof); + oldSelected = (tvItem.state & OS.TVIS_SELECTED) !is 0; + int offset2 = NMHDR.sizeof + 4 + TVITEM.sizeof; + OS.MoveMemory (tvItem, lParam + offset2, TVITEM.sizeof); + newSelected = (tvItem.state & OS.TVIS_SELECTED) !is 0; + } + } + if (!ignoreSelect && !ignoreDeselect) { + hAnchor = 0; + if ((style & DWT.MULTI) !is 0) deselectAll (); + } + break; + } + case OS.TVN_SELCHANGEDA: + case OS.TVN_SELCHANGEDW: { + if ((style & DWT.MULTI) !is 0) { + if (lockSelection) { + /* Restore the old selection state of both items */ + if (oldSelected) { + TVITEM tvItem = new TVITEM (); + int offset = NMHDR.sizeof + 4; + OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); + tvItem.mask = OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_SELECTED; + tvItem.state = OS.TVIS_SELECTED; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + if (!newSelected && ignoreSelect) { + TVITEM tvItem = new TVITEM (); + int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; + OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); + tvItem.mask = OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_SELECTED; + tvItem.state = 0; + OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem); + } + } + } + if (!ignoreSelect) { + TVITEM tvItem = new TVITEM (); + int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; + OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); + hAnchor = tvItem.hItem; + Event event = new Event (); + event.item = _getItem (tvItem.hItem, tvItem.lParam); + postEvent (DWT.Selection, event); + } + updateScrollBar (); + break; + } + case OS.TVN_ITEMEXPANDINGA: + case OS.TVN_ITEMEXPANDINGW: { + bool runExpanded = false; + if ((style & DWT.VIRTUAL) !is 0) style &= ~DWT.DOUBLE_BUFFERED; + if (hooks (DWT.EraseItem) || hooks (DWT.PaintItem)) style &= ~DWT.DOUBLE_BUFFERED; + if (findImageControl () !is null && drawCount is 0 && OS.IsWindowVisible (handle)) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0); + } + /* + * Bug in Windows. When TVM_SETINSERTMARK is used to set + * an insert mark for a tree and an item is expanded or + * collapsed near the insert mark, the tree does not redraw + * the insert mark properly. The fix is to hide and show + * the insert mark whenever an item is expanded or collapsed. + */ + if (hInsert !is 0) { + OS.SendMessage (handle, OS.TVM_SETINSERTMARK, 0, 0); + } + if (!ignoreExpand) { + TVITEM tvItem = new TVITEM (); + int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; + OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); + /* + * Feature in Windows. In some cases, TVM_ITEMEXPANDING + * is sent from within TVM_DELETEITEM for the tree item + * being destroyed. By the time the message is sent, + * the item has already been removed from the list of + * items. The fix is to check for null. + */ + if (items is null) break; + TreeItem item = _getItem (tvItem.hItem, tvItem.lParam); + if (item is null) break; + Event event = new Event (); + event.item = item; + int [] action = new int [1]; + OS.MoveMemory (action, lParam + NMHDR.sizeof, 4); + switch (action [0]) { + case OS.TVE_EXPAND: + /* + * Bug in Windows. When the numeric keypad asterisk + * key is used to expand every item in the tree, Windows + * sends TVN_ITEMEXPANDING to items in the tree that + * have already been expanded. The fix is to detect + * that the item is already expanded and ignore the + * notification. + */ + if ((tvItem.state & OS.TVIS_EXPANDED) is 0) { + sendEvent (DWT.Expand, event); + if (isDisposed ()) return LRESULT.ZERO; + } + break; + case OS.TVE_COLLAPSE: + sendEvent (DWT.Collapse, event); + if (isDisposed ()) return LRESULT.ZERO; + break; + } + /* + * Bug in Windows. When all of the items are deleted during + * TVN_ITEMEXPANDING, Windows does not send TVN_ITEMEXPANDED. + * The fix is to detect this case and run the TVN_ITEMEXPANDED + * code in this method. + */ + int hFirstItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, tvItem.hItem); + runExpanded = hFirstItem is 0; + } + if (!runExpanded) break; + //FALL THROUGH + } + case OS.TVN_ITEMEXPANDEDA: + case OS.TVN_ITEMEXPANDEDW: { + if ((style & DWT.VIRTUAL) !is 0) style |= DWT.DOUBLE_BUFFERED; + if (hooks (DWT.EraseItem) || hooks (DWT.PaintItem)) style |= DWT.DOUBLE_BUFFERED; + if (findImageControl () !is null && drawCount is 0 /*&& OS.IsWindowVisible (handle)*/) { + OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0); + OS.InvalidateRect (handle, null, true); + } + /* + * Bug in Windows. When TVM_SETINSERTMARK is used to set + * an insert mark for a tree and an item is expanded or + * collapsed near the insert mark, the tree does not redraw + * the insert mark properly. The fix is to hide and show + * the insert mark whenever an item is expanded or collapsed. + */ + if (hInsert !is 0) { + OS.SendMessage (handle, OS.TVM_SETINSERTMARK, insertAfter ? 1 : 0, hInsert); + } + /* + * Bug in Windows. When a tree item that has an image + * with alpha is expanded or collapsed, the area where + * the image is drawn is not erased before it is drawn. + * This means that the image gets darker each time. + * The fix is to redraw the item. + */ + if (!OS.IsWinCE && OS.COMCTL32_MAJOR >= 6) { + if (imageList !is null) { + TVITEM tvItem = new TVITEM (); + int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; + OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); + if (tvItem.hItem !is 0) { + int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); + if ((bits & OS.TVS_FULLROWSELECT) is 0) { + RECT rect = new RECT (); + rect.left = tvItem.hItem; + OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect); + OS.InvalidateRect (handle, rect, true); + } + } + } + } + updateScrollBar (); + break; + } + case OS.TVN_BEGINDRAGA: + case OS.TVN_BEGINDRAGW: + case OS.TVN_BEGINRDRAGA: + case OS.TVN_BEGINRDRAGW: { + TVITEM tvItem = new TVITEM (); + int offset = NMHDR.sizeof + 4 + TVITEM.sizeof; + OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof); + if (tvItem.hItem !is 0 && (tvItem.state & OS.TVIS_SELECTED) is 0) { + hSelect = tvItem.hItem; + ignoreSelect = ignoreDeselect = true; + OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, tvItem.hItem); + ignoreSelect = ignoreDeselect = false; + hSelect = 0; + } + dragStarted = true; + break; + } + case OS.NM_RECOGNIZEGESTURE: { + /* + * Feature in Pocket PC. The tree and table controls detect the tap + * and hold gesture by default. They send a GN_CONTEXTMENU message to show + * the popup menu. This default behaviour is unwanted on Pocket PC 2002 + * when no menu has been set, as it still draws a red circle. The fix + * is to disable this default behaviour when no menu is set by returning + * TRUE when receiving the Pocket PC 2002 specific NM_RECOGNIZEGESTURE + * message. + */ + if (OS.IsPPC) { + bool hasMenu = menu !is null && !menu.isDisposed (); + if (!hasMenu && !hooks (DWT.MenuDetect)) return LRESULT.ONE; + } + break; + } + case OS.GN_CONTEXTMENU: { + if (OS.IsPPC) { + bool hasMenu = menu !is null && !menu.isDisposed (); + if (hasMenu || hooks (DWT.MenuDetect)) { + NMRGINFO nmrg = new NMRGINFO (); + OS.MoveMemory (nmrg, lParam, NMRGINFO.sizeof); + showMenu (nmrg.x, nmrg.y); + gestureCompleted = true; + return LRESULT.ONE; + } + } + break; + } + } + return super.wmNotifyChild (hdr, wParam, lParam); +} + +} +++/ \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/TreeColumn.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,772 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.TreeColumn; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class TreeColumn : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.ControlListener; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.graphics.Image; +import dwt.graphics.Rectangle; +import dwt.internal.win32.HDITEM; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TOOLINFO; +import dwt.internal.win32.TVITEM; + +/** + * Instances of this class represent a column in a tree widget. + * <p><dl> + * <dt><b>Styles:</b></dt> + * <dd>LEFT, RIGHT, CENTER</dd> + * <dt><b>Events:</b></dt> + * <dd> Move, Resize, Selection</dd> + * </dl> + * </p><p> + * Note: Only one of the styles LEFT, RIGHT and CENTER may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @since 3.1 + */ +public class TreeColumn extends Item { + Tree parent; + bool resizable, moveable; + String toolTipText; + int id; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Tree</code>) and a style value + * describing its behavior and appearance. The item is added + * to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#CENTER + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TreeColumn (Tree parent, int style) { + super (parent, checkStyle (style)); + resizable = true; + this.parent = parent; + parent.createItem (this, parent.getColumnCount ()); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Tree</code>), a style value + * describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a composite control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT#LEFT + * @see DWT#RIGHT + * @see DWT#CENTER + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TreeColumn (Tree parent, int style, int index) { + super (parent, checkStyle (style)); + resizable = true; + this.parent = parent; + parent.createItem (this, index); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is moved or resized, by sending + * it one of the messages defined in the <code>ControlListener</code> + * interface. + * + * @param listener the listener which should be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ControlListener + * @see #removeControlListener + */ +public void addControlListener(ControlListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Resize,typedListener); + addListener (DWT.Move,typedListener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the control is selected by the user, by sending + * it one of the messages defined in the <code>SelectionListener</code> + * interface. + * <p> + * <code>widgetSelected</code> is called when the column header is selected. + * <code>widgetDefaultSelected</code> is not called. + * </p> + * + * @param listener the listener which should be notified when the control is selected by the user + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #removeSelectionListener + * @see SelectionEvent + */ +public void addSelectionListener (SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Selection,typedListener); + addListener (DWT.DefaultSelection,typedListener); +} + +static int checkStyle (int style) { + return checkBits (style, DWT.LEFT, DWT.CENTER, DWT.RIGHT, 0, 0, 0); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +void destroyWidget () { + parent.destroyItem (this); + releaseHandle (); +} + +/** + * Returns a value which describes the position of the + * text or image in the receiver. The value will be one of + * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code>. + * + * @return the alignment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getAlignment () { + checkWidget (); + if ((style & DWT.LEFT) !is 0) return DWT.LEFT; + if ((style & DWT.CENTER) !is 0) return DWT.CENTER; + if ((style & DWT.RIGHT) !is 0) return DWT.RIGHT; + return DWT.LEFT; +} + +/** + * Gets the moveable attribute. A column that is + * not moveable cannot be reordered by the user + * by dragging the header but may be reordered + * by the programmer. + * + * @return the moveable attribute + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#getColumnOrder() + * @see Tree#setColumnOrder(int[]) + * @see TreeColumn#setMoveable(bool) + * @see DWT#Move + * + * @since 3.2 + */ +public bool getMoveable () { + checkWidget (); + return moveable; +} + +String getNameText () { + return getText (); +} + +/** + * Returns the receiver's parent, which must be a <code>Tree</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Tree getParent () { + checkWidget (); + return parent; +} + +/** + * Gets the resizable attribute. A column that is + * not resizable cannot be dragged by the user but + * may be resized by the programmer. + * + * @return the resizable attribute + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getResizable () { + checkWidget (); + return resizable; +} + +/** + * Returns the receiver's tool tip text, or null if it has + * not been set. + * + * @return the receiver's tool tip text + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public String getToolTipText () { + checkWidget(); + return toolTipText; +} + +/** + * Gets the width of the receiver. + * + * @return the width + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getWidth () { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return 0; + int hwndHeader = parent.hwndHeader; + if (hwndHeader is 0) return 0; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + return hdItem.cxy; +} + +/** + * Causes the receiver to be resized to its preferred size. + * For a composite, this involves computing the preferred size + * from its layout, if there is one. + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + */ +public void pack () { + checkWidget (); + int index = parent.indexOf (this); + if (index is -1) return; + int columnWidth = 0; + int hwnd = parent.handle, hwndHeader = parent.hwndHeader; + RECT headerRect = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + int hDC = OS.GetDC (hwnd); + int oldFont = 0, newFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); + if (newFont !is 0) oldFont = OS.SelectObject (hDC, newFont); + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + while (tvItem.hItem !is 0) { + OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + TreeItem item = tvItem.lParam !is -1 ? parent.items [tvItem.lParam] : null; + if (item !is null) { + int hFont = item.cellFont !is null ? item.cellFont [index] : -1; + if (hFont is -1) hFont = item.font; + if (hFont !is -1) hFont = OS.SelectObject (hDC, hFont); + RECT itemRect = item.getBounds (index, true, true, false, false, false, hDC); + if (hFont !is -1) OS.SelectObject (hDC, hFont); + if (parent.hooks (DWT.MeasureItem)) { + int nSavedDC = OS.SaveDC (hDC); + GCData data = new GCData (); + data.device = display; + data.hFont = hFont; + GC gc = GC.win32_new (hDC, data); + Event event = new Event (); + event.item = item; + event.gc = gc; + event.index = index; + event.x = itemRect.left; + event.y = itemRect.top; + event.width = itemRect.right - itemRect.left; + event.height = itemRect.bottom - itemRect.top; + parent.sendEvent (DWT.MeasureItem, event); + event.gc = null; + gc.dispose (); + OS.RestoreDC (hDC, nSavedDC); + if (isDisposed () || parent.isDisposed ()) break; + if (event.height > parent.getItemHeight ()) parent.setItemHeight (event.height); + //itemRect.left = event.x; + itemRect.right = event.x + event.width; + } + columnWidth = Math.max (columnWidth, itemRect.right - headerRect.left); + } + tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, tvItem.hItem); + } + RECT rect = new RECT (); + int flags = OS.DT_CALCRECT | OS.DT_NOPREFIX; + TCHAR buffer = new TCHAR (parent.getCodePage (), text, false); + OS.DrawText (hDC, buffer, buffer.length (), rect, flags); + int headerWidth = rect.right - rect.left + Tree.HEADER_MARGIN; + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) headerWidth += Tree.HEADER_EXTRA; + if (image !is null || parent.sortColumn is this) { + Image headerImage = null; + if (parent.sortColumn is this && parent.sortDirection !is DWT.NONE) { + if (OS.COMCTL32_MAJOR < 6) { + headerImage = display.getSortImage (parent.sortDirection); + } else { + headerWidth += Tree.SORT_WIDTH; + } + } else { + headerImage = image; + } + if (headerImage !is null) { + Rectangle bounds = headerImage.getBounds (); + headerWidth += bounds.width; + } + int margin = 0; + if (hwndHeader !is 0 && OS.COMCTL32_VERSION >= OS.VERSION (5, 80)) { + margin = OS.SendMessage (hwndHeader, OS.HDM_GETBITMAPMARGIN, 0, 0); + } else { + margin = OS.GetSystemMetrics (OS.SM_CXEDGE) * 3; + } + headerWidth += margin * 2; + } + if (newFont !is 0) OS.SelectObject (hDC, oldFont); + OS.ReleaseDC (hwnd, hDC); + int gridWidth = parent.linesVisible ? Tree.GRID_WIDTH : 0; + setWidth (Math.max (headerWidth, columnWidth + gridWidth)); +} + +void releaseHandle () { + super.releaseHandle (); + parent = null; +} + +void releaseParent () { + super.releaseParent (); + if (parent.sortColumn is this) { + parent.sortColumn = null; + } +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is moved or resized. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see ControlListener + * @see #addControlListener + */ +public void removeControlListener (ControlListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Move, listener); + eventTable.unhook (DWT.Resize, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the control is selected by the user. + * + * @param listener the listener which should no longer be notified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see SelectionListener + * @see #addSelectionListener + */ +public void removeSelectionListener(SelectionListener listener) { + checkWidget (); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Selection, listener); + eventTable.unhook (DWT.DefaultSelection,listener); +} + +/** + * Controls how text and images will be displayed in the receiver. + * The argument should be one of <code>LEFT</code>, <code>RIGHT</code> + * or <code>CENTER</code>. + * + * @param alignment the new alignment + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setAlignment (int alignment) { + checkWidget (); + if ((alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER)) is 0) return; + int index = parent.indexOf (this); + if (index is -1 || index is 0) return; + style &= ~(DWT.LEFT | DWT.RIGHT | DWT.CENTER); + style |= alignment & (DWT.LEFT | DWT.RIGHT | DWT.CENTER); + int hwndHeader = parent.hwndHeader; + if (hwndHeader is 0) return; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + hdItem.fmt &= ~OS.HDF_JUSTIFYMASK; + if ((style & DWT.LEFT) is DWT.LEFT) hdItem.fmt |= OS.HDF_LEFT; + if ((style & DWT.CENTER) is DWT.CENTER) hdItem.fmt |= OS.HDF_CENTER; + if ((style & DWT.RIGHT) is DWT.RIGHT) hdItem.fmt |= OS.HDF_RIGHT; + OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); + if (index !is 0) { + int hwnd = parent.handle; + parent.forceResize (); + RECT rect = new RECT (), headerRect = new RECT (); + OS.GetClientRect (hwnd, rect); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + rect.left = headerRect.left; + rect.right = headerRect.right; + OS.InvalidateRect (hwnd, rect, true); + } +} + +public void setImage (Image image) { + checkWidget(); + if (image !is null && image.isDisposed ()) { + error (DWT.ERROR_INVALID_ARGUMENT); + } + super.setImage (image); + if (parent.sortColumn !is this || parent.sortDirection !is DWT.NONE) { + setImage (image, false, false); + } +} + +void setImage (Image image, bool sort, bool right) { + int index = parent.indexOf (this); + if (index is -1) return; + int hwndHeader = parent.hwndHeader; + if (hwndHeader is 0) return; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE | OS.HDI_BITMAP; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + hdItem.fmt &= ~OS.HDF_BITMAP_ON_RIGHT; + if (image !is null) { + if (sort) { + hdItem.mask &= ~OS.HDI_IMAGE; + hdItem.fmt &= ~OS.HDF_IMAGE; + hdItem.fmt |= OS.HDF_BITMAP; + hdItem.hbm = image.handle; + } else { + hdItem.mask &= ~OS.HDI_BITMAP; + hdItem.fmt &= ~OS.HDF_BITMAP; + hdItem.fmt |= OS.HDF_IMAGE; + hdItem.iImage = parent.imageIndexHeader (image); + } + if (right) hdItem.fmt |= OS.HDF_BITMAP_ON_RIGHT; + } else { + hdItem.mask &= ~(OS.HDI_IMAGE | OS.HDI_BITMAP); + hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_BITMAP); + } + OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); +} + +/** + * Sets the moveable attribute. A column that is + * moveable can be reordered by the user by dragging + * the header. A column that is not moveable cannot be + * dragged by the user but may be reordered + * by the programmer. + * + * @param moveable the moveable attribute + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Tree#setColumnOrder(int[]) + * @see Tree#getColumnOrder() + * @see TreeColumn#getMoveable() + * @see DWT#Move + * + * @since 3.2 + */ +public void setMoveable (bool moveable) { + checkWidget (); + this.moveable = moveable; +} + +/** + * Sets the resizable attribute. A column that is + * not resizable cannot be dragged by the user but + * may be resized by the programmer. + * + * @param resizable the resize attribute + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setResizable (bool resizable) { + checkWidget (); + this.resizable = resizable; +} + +void setSortDirection (int direction) { + if (OS.COMCTL32_MAJOR >= 6) { + int hwndHeader = parent.hwndHeader; + if (hwndHeader !is 0) { + int index = parent.indexOf (this); + if (index is -1) return; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE; + OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); + switch (direction) { + case DWT.UP: + hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_SORTDOWN); + hdItem.fmt |= OS.HDF_SORTUP; + break; + case DWT.DOWN: + hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_SORTUP); + hdItem.fmt |= OS.HDF_SORTDOWN; + break; + case DWT.NONE: + hdItem.fmt &= ~(OS.HDF_SORTUP | OS.HDF_SORTDOWN); + if (image !is null) { + hdItem.fmt |= OS.HDF_IMAGE; + hdItem.iImage = parent.imageIndexHeader (image); + } else { + hdItem.fmt &= ~OS.HDF_IMAGE; + } + break; + } + OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + int hwnd = parent.handle; + parent.forceResize (); + RECT rect = new RECT (), headerRect = new RECT (); + OS.GetClientRect (hwnd, rect); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + rect.left = headerRect.left; + rect.right = headerRect.right; + OS.InvalidateRect (hwnd, rect, true); + } + } + } else { + switch (direction) { + case DWT.UP: + case DWT.DOWN: + setImage (display.getSortImage (direction), true, true); + break; + case DWT.NONE: + setImage (image, false, false); + break; + } + } +} + +public void setText (String string) { + checkWidget (); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if (string.equals (text)) return; + int index = parent.indexOf (this); + if (index is -1) return; + super.setText (string); + /* + * Bug in Windows. When a column header contains a + * mnemonic character, Windows does not measure the + * text properly. This causes '...' to always appear + * at the end of the text. The fix is to remove + * mnemonic characters and replace doubled mnemonics + * with spaces. + */ + int hHeap = OS.GetProcessHeap (); + TCHAR buffer = new TCHAR (parent.getCodePage (), fixMnemonic (string), true); + int byteCount = buffer.length () * TCHAR.sizeof; + int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); + OS.MoveMemory (pszText, buffer, byteCount); + int hwndHeader = parent.hwndHeader; + if (hwndHeader is 0) return; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_TEXT; + hdItem.pszText = pszText; + int result = OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); + if (pszText !is 0) OS.HeapFree (hHeap, 0, pszText); + if (result is 0) error (DWT.ERROR_CANNOT_SET_TEXT); +} + +/** + * Sets the receiver's tool tip text to the argument, which + * may be null indicating that no tool tip text should be shown. + * + * @param string the new tool tip text (or null) + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setToolTipText (String string) { + checkWidget(); + toolTipText = string; + int hwndHeaderToolTip = parent.headerToolTipHandle; + if (hwndHeaderToolTip is 0) { + parent.createHeaderToolTips (); + parent.updateHeaderToolTips (); + } +} + +/** + * Sets the width of the receiver. + * + * @param width the new width + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setWidth (int width) { + checkWidget (); + if (width < 0) return; + int index = parent.indexOf (this); + if (index is -1) return; + int hwndHeader = parent.hwndHeader; + if (hwndHeader is 0) return; + HDITEM hdItem = new HDITEM (); + hdItem.mask = OS.HDI_WIDTH; + hdItem.cxy = width; + OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); + RECT headerRect = new RECT (); + OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); + parent.forceResize (); + int hwnd = parent.handle; + RECT rect = new RECT (); + OS.GetClientRect (hwnd, rect); + rect.left = headerRect.left; + OS.InvalidateRect (hwnd, rect, true); + parent.setScrollWidth (); +} + +void updateToolTip (int index) { + int hwndHeaderToolTip = parent.headerToolTipHandle; + if (hwndHeaderToolTip !is 0) { + int hwndHeader = parent.hwndHeader; + RECT rect = new RECT (); + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, rect) !is 0) { + TOOLINFO lpti = new TOOLINFO (); + lpti.cbSize = TOOLINFO.sizeof; + lpti.hwnd = hwndHeader; + lpti.uId = id; + lpti.left = rect.left; + lpti.top = rect.top; + lpti.right = rect.right; + lpti.bottom = rect.bottom; + OS.SendMessage (hwndHeaderToolTip, OS.TTM_NEWTOOLRECT, 0, lpti); + } + } +} +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/TreeItem.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,1839 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.TreeItem; + +import dwt.widgets.Item; +import dwt.widgets.Widget; + +class TreeItem : Item { + public this (Widget parent, int style) { + super (parent, style); + } +} +/++ + +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Color; +import dwt.graphics.Font; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.internal.win32.OS; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SCROLLINFO; +import dwt.internal.win32.TCHAR; +import dwt.internal.win32.TVITEM; + +/** + * Instances of this class represent a selectable user interface object + * that represents a hierarchy of tree items in a tree widget. + * + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ + +public class TreeItem extends Item { + /** + * the handle to the OS resource + * (Warning: This field is platform dependent) + * <p> + * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It is not available on all + * platforms and should never be accessed from application code. + * </p> + */ + public int handle; + Tree parent; + String [] strings; + Image [] images; + bool cached; + int background = -1, foreground = -1, font = -1; + int [] cellBackground, cellForeground, cellFont; + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Tree</code> or a <code>TreeItem</code>) + * and a style value describing its behavior and appearance. + * The item is added to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a tree control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TreeItem (Tree parent, int style) { + this (parent, style, OS.TVGN_ROOT, OS.TVI_LAST, 0); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Tree</code> or a <code>TreeItem</code>), + * a style value describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a tree control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TreeItem (Tree parent, int style, int index) { + this (parent, style, OS.TVGN_ROOT, findPrevious (parent, index), 0); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Tree</code> or a <code>TreeItem</code>) + * and a style value describing its behavior and appearance. + * The item is added to the end of the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parentItem a tree control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TreeItem (TreeItem parentItem, int style) { + this (checkNull (parentItem).parent, style, parentItem.handle, OS.TVI_LAST, 0); +} + +/** + * Constructs a new instance of this class given its parent + * (which must be a <code>Tree</code> or a <code>TreeItem</code>), + * a style value describing its behavior and appearance, and the index + * at which to place it in the items maintained by its parent. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parentItem a tree control which will be the parent of the new instance (cannot be null) + * @param style the style of control to construct + * @param index the zero-relative index to store the receiver in its parent + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public TreeItem (TreeItem parentItem, int style, int index) { + this (checkNull (parentItem).parent, style, parentItem.handle, findPrevious (parentItem, index), 0); +} + +TreeItem (Tree parent, int style, int hParent, int hInsertAfter, int hItem) { + super (parent, style); + this.parent = parent; + parent.createItem (this, hParent, hInsertAfter, hItem); +} + +static TreeItem checkNull (TreeItem item) { + if (item is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); + return item; +} + +static int findPrevious (Tree parent, int index) { + if (parent is null) return 0; + if (index < 0) DWT.error (DWT.ERROR_INVALID_RANGE); + if (index is 0) return OS.TVI_FIRST; + int hwnd = parent.handle; + int hFirstItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); + int hItem = parent.findItem (hFirstItem, index - 1); + if (hItem is 0) DWT.error (DWT.ERROR_INVALID_RANGE); + return hItem; +} + +static int findPrevious (TreeItem parentItem, int index) { + if (parentItem is null) return 0; + if (index < 0) DWT.error (DWT.ERROR_INVALID_RANGE); + if (index is 0) return OS.TVI_FIRST; + Tree parent = parentItem.parent; + int hwnd = parent.handle, hParent = parentItem.handle; + int hFirstItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hParent); + int hItem = parent.findItem (hFirstItem, index - 1); + if (hItem is 0) DWT.error (DWT.ERROR_INVALID_RANGE); + return hItem; +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +void clear () { + text = ""; + image = null; + strings = null; + images = null; + if ((parent.style & DWT.CHECK) !is 0) { + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + tvItem.state = 1 << 12; + tvItem.hItem = handle; + OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); + } + background = foreground = font = -1; + cellBackground = cellForeground = cellFont = null; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = false; +} + +/** + * Clears the item at the given zero-relative index in the receiver. + * The text, icon and other attributes of the item are set to the default + * value. If the tree was created with the <code>DWT.VIRTUAL</code> style, + * these attributes are requested again as needed. + * + * @param index the index of the item to clear + * @param all <code>true</code> if all child items of the indexed item should be + * cleared recursively, and <code>false</code> otherwise + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#VIRTUAL + * @see DWT#SetData + * + * @since 3.2 + */ +public void clear (int index, bool all) { + checkWidget (); + int hwnd = parent.handle; + int hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + if (hItem is 0) error (DWT.ERROR_INVALID_RANGE); + hItem = parent.findItem (hItem, index); + if (hItem is 0) error (DWT.ERROR_INVALID_RANGE); + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + parent.clear (hItem, tvItem); + if (all) { + hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem); + parent.clearAll (hItem, tvItem, all); + } +} + +/** + * Clears all the items in the receiver. The text, icon and other + * attributes of the items are set to their default values. If the + * tree was created with the <code>DWT.VIRTUAL</code> style, these + * attributes are requested again as needed. + * + * @param all <code>true</code> if all child items should be cleared + * recursively, and <code>false</code> otherwise + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT#VIRTUAL + * @see DWT#SetData + * + * @since 3.2 + */ +public void clearAll (bool all) { + checkWidget (); + int hwnd = parent.handle; + int hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + if (hItem is 0) return; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + parent.clearAll (hItem, tvItem, all); +} + +void destroyWidget () { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + parent.releaseItem (handle, tvItem, false); + parent.destroyItem (this, handle); + releaseHandle (); +} + +/** + * Returns the receiver's background color. + * + * @return the background color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + * + */ +public Color getBackground () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if (background is -1) return parent.getBackground (); + return Color.win32_new (display, background); +} + +/** + * Returns the background color at the given column index in the receiver. + * + * @param index the column index + * @return the background color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public Color getBackground (int index) { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return getBackground (); + int pixel = cellBackground !is null ? cellBackground [index] : -1; + return pixel is -1 ? getBackground () : Color.win32_new (display, pixel); +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent. + * + * @return the receiver's bounding rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Rectangle getBounds () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + RECT rect = getBounds (0, true, false, false); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +/** + * Returns a rectangle describing the receiver's size and location + * relative to its parent at a column in the tree. + * + * @param index the index that specifies the column + * @return the receiver's bounding column rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public Rectangle getBounds (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + RECT rect = getBounds (index, true, true, true); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +RECT getBounds (int index, bool getText, bool getImage, bool fullText) { + return getBounds (index, getText, getImage, fullText, false, true, 0); +} + +//TODO - take into account grid (add bool arg) to damage less during redraw +RECT getBounds (int index, bool getText, bool getImage, bool fullText, bool fullImage, bool clip, int hDC) { + if (!getText && !getImage) return new RECT (); + int hwnd = parent.handle; + if ((parent.style & DWT.VIRTUAL) is 0 && !cached && !parent.painted) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; + tvItem.hItem = handle; + tvItem.pszText = OS.LPSTR_TEXTCALLBACK; + parent.ignoreCustomDraw = true; + OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); + parent.ignoreCustomDraw = false; + } + bool firstColumn = index is 0; + int columnCount = 0, hwndHeader = parent.hwndHeader; + if (hwndHeader !is 0) { + columnCount = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0); + firstColumn = index is OS.SendMessage (hwndHeader, OS.HDM_ORDERTOINDEX, 0, 0); + } + RECT rect = new RECT (); + if (firstColumn) { + rect.left = handle; + bool full = columnCount is 0 && getText && getImage && fullText && fullImage; + if (OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, full ? 0 : 1, rect) is 0) { + return new RECT (); + } + if (getImage && !fullImage) { + if (OS.SendMessage (hwnd, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0) !is 0) { + Point size = parent.getImageSize (); + rect.left -= size.x + Tree.INSET; + if (!getText) rect.right = rect.left + size.x; + } else { + if (!getText) rect.right = rect.left; + } + } + if (fullText || fullImage || clip) { + if (hwndHeader !is 0) { + RECT headerRect = new RECT (); + if (columnCount !is 0) { + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect) is 0) { + return new RECT (); + } + } else { + headerRect.right = parent.scrollWidth; + if (headerRect.right is 0) headerRect = rect; + } + if (fullText) rect.right = headerRect.right; + if (fullImage) rect.left = headerRect.left; + if (clip && headerRect.right < rect.right) { + rect.right = headerRect.right; + } + } + } + } else { + if (!(0 <= index && index < columnCount)) return new RECT (); + RECT headerRect = new RECT (); + if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect) is 0) { + return new RECT (); + } + rect.left = handle; + if (OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, 0, rect) is 0) { + return new RECT (); + } + rect.left = headerRect.left; + if (fullText && getImage) { + rect.right = headerRect.right; + } else { + rect.right = headerRect.left; + Image image = null; + if (index is 0) { + image = this.image; + } else { + if (images !is null) image = images [index]; + } + if (image !is null) { + Point size = parent.getImageSize (); + rect.right += size.x; + } + if (getText) { + if (fullText) { + rect.left = rect.right + Tree.INSET; + rect.right = headerRect.right; + } else { + String string = index is 0 ? text : strings !is null ? strings [index] : null; + if (string !is null) { + RECT textRect = new RECT (); + TCHAR buffer = new TCHAR (parent.getCodePage (), string, false); + int flags = OS.DT_NOPREFIX | OS.DT_SINGLELINE | OS.DT_CALCRECT; + int hNewDC = hDC, hFont = 0; + if (hDC is 0) { + hNewDC = OS.GetDC (hwnd); + hFont = cellFont !is null ? cellFont [index] : -1; + if (hFont is -1) hFont = font; + if (hFont is -1) hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); + hFont = OS.SelectObject (hNewDC, hFont); + } + OS.DrawText (hNewDC, buffer, buffer.length (), textRect, flags); + if (hDC is 0) { + OS.SelectObject (hNewDC, hFont); + OS.ReleaseDC (hwnd, hNewDC); + } + if (getImage) { + rect.right += textRect.right - textRect.left + Tree.INSET * 3; + } else { + rect.left = rect.right + Tree.INSET; + rect.right = rect.left + (textRect.right - textRect.left) + Tree.INSET; + } + } + } + } + if (clip && headerRect.right < rect.right) { + rect.right = headerRect.right; + } + } + } + int gridWidth = parent.linesVisible && columnCount !is 0 ? Tree.GRID_WIDTH : 0; + if (getText || !getImage) { + rect.right = Math.max (rect.left, rect.right - gridWidth); + } + rect.bottom = Math.max (rect.top, rect.bottom - gridWidth); + return rect; +} + +/** + * Returns <code>true</code> if the receiver is checked, + * and false otherwise. When the parent does not have + * the <code>CHECK style, return false. + * <p> + * + * @return the checked state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getChecked () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if ((parent.style & DWT.CHECK) is 0) return false; + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + tvItem.hItem = handle; + int result = OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + return (result !is 0) && (((tvItem.state >> 12) & 1) is 0); +} + +/** + * Returns <code>true</code> if the receiver is expanded, + * and false otherwise. + * <p> + * + * @return the expanded state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getExpanded () { + checkWidget (); + int hwnd = parent.handle, state = 0; + if (OS.IsWinCE) { + TVITEM tvItem = new TVITEM (); + tvItem.hItem = handle; + tvItem.mask = OS.TVIF_STATE; + OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + /* + * Bug in Windows. Despite the fact that TVM_GETITEMSTATE claims + * to return only the bits specified by the stateMask, when called + * with TVIS_EXPANDED, the entire state is returned. The fix is + * to explicitly check for the TVIS_EXPANDED bit. + */ + state = OS.SendMessage (hwnd, OS.TVM_GETITEMSTATE, handle, OS.TVIS_EXPANDED); + } + return (state & OS.TVIS_EXPANDED) !is 0; +} + +/** + * Returns the font that the receiver will use to paint textual information for this item. + * + * @return the receiver's font + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public Font getFont () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + return font is -1 ? parent.getFont () : Font.win32_new (display, font); +} + +/** + * Returns the font that the receiver will use to paint textual information + * for the specified cell in this item. + * + * @param index the column index + * @return the receiver's font + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public Font getFont (int index) { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count -1) return getFont (); + int hFont = (cellFont !is null) ? cellFont [index] : font; + return hFont is -1 ? getFont () : Font.win32_new (display, hFont); +} + +/** + * Returns the foreground color that the receiver will use to draw. + * + * @return the receiver's foreground color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + * + */ +public Color getForeground () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if (foreground is -1) return parent.getForeground (); + return Color.win32_new (display, foreground); +} + +/** + * + * Returns the foreground color at the given column index in the receiver. + * + * @param index the column index + * @return the foreground color + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public Color getForeground (int index) { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count -1) return getForeground (); + int pixel = cellForeground !is null ? cellForeground [index] : -1; + return pixel is -1 ? getForeground () : Color.win32_new (display, pixel); +} + +/** + * Returns <code>true</code> if the receiver is grayed, + * and false otherwise. When the parent does not have + * the <code>CHECK style, return false. + * <p> + * + * @return the grayed state of the checkbox + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public bool getGrayed () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if ((parent.style & DWT.CHECK) is 0) return false; + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + tvItem.hItem = handle; + int result = OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + return (result !is 0) && ((tvItem.state >> 12) > 2); +} + +/** + * Returns the item at the given, zero-relative index in the + * receiver. Throws an exception if the index is out of range. + * + * @param index the index of the item to return + * @return the item at the given index + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public TreeItem getItem (int index) { + checkWidget (); + if (index < 0) error (DWT.ERROR_INVALID_RANGE); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int hwnd = parent.handle; + int hFirstItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + if (hFirstItem is 0) error (DWT.ERROR_INVALID_RANGE); + int hItem = parent.findItem (hFirstItem, index); + if (hItem is 0) error (DWT.ERROR_INVALID_RANGE); + return parent._getItem (hItem); +} + +/** + * Returns the number of items contained in the receiver + * that are direct item children of the receiver. + * + * @return the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getItemCount () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int hwnd = parent.handle; + int hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + if (hItem is 0) return 0; + return parent.getItemCount (hItem); +} + +/** + * Returns a (possibly empty) array of <code>TreeItem</code>s which + * are the direct item children of the receiver. + * <p> + * Note: This is not the actual structure used by the receiver + * to maintain its list of items, so modifying the array will + * not affect the receiver. + * </p> + * + * @return the receiver's items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TreeItem [] getItems () { + checkWidget (); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + int hwnd = parent.handle; + int hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + if (hItem is 0) return new TreeItem [0]; + return parent.getItems (hItem); +} + +public Image getImage () { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + return super.getImage (); +} + +/** + * Returns the image stored at the given column index in the receiver, + * or null if the image has not been set or if the column does not exist. + * + * @param index the column index + * @return the image stored at the given column index in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public Image getImage (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if (index is 0) return getImage (); + if (images !is null) { + if (0 <= index && index < images.length) return images [index]; + } + return null; +} + +/** + * Returns a rectangle describing the size and location + * relative to its parent of an image at a column in the + * tree. + * + * @param index the index that specifies the column + * @return the receiver's bounding image rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public Rectangle getImageBounds (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + RECT rect = getBounds (index, false, true, false); + int width = rect.right - rect.left, height = rect.bottom - rect.top; + return new Rectangle (rect.left, rect.top, width, height); +} + +/** + * Returns the receiver's parent, which must be a <code>Tree</code>. + * + * @return the receiver's parent + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public Tree getParent () { + checkWidget (); + return parent; +} + +/** + * Returns the receiver's parent item, which must be a + * <code>TreeItem</code> or null when the receiver is a + * root. + * + * @return the receiver's parent item + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public TreeItem getParentItem () { + checkWidget (); + int hwnd = parent.handle; + int hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, handle); + return hItem !is 0 ? parent._getItem (hItem) : null; +} + +public String getText () { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + return super.getText (); +} + +/** + * Returns the text stored at the given column index in the receiver, + * or empty string if the text has not been set. + * + * @param index the column index + * @return the text stored at the given column index in the receiver + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public String getText (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + if (index is 0) return getText (); + if (strings !is null) { + if (0 <= index && index < strings.length) { + String string = strings [index]; + return string !is null ? string : ""; + } + } + return ""; +} + +/** + * Returns a rectangle describing the size and location + * relative to its parent of the text at a column in the + * tree. + * + * @param index the index that specifies the column + * @return the receiver's bounding text rectangle + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +public Rectangle getTextBounds (int index) { + checkWidget(); + if (!parent.checkData (this, true)) error (DWT.ERROR_WIDGET_DISPOSED); + RECT rect = getBounds (index, true, false, true); + if (index is 0) rect.left += Tree.INSET - 1; + rect.left = Math.min (rect.left, rect.right); + rect.right = rect.right - Tree.INSET; + int width = Math.max (0, rect.right - rect.left); + int height = Math.max (0, rect.bottom - rect.top); + return new Rectangle (rect.left, rect.top, width, height); +} + +/** + * Searches the receiver's list starting at the first item + * (index 0) until an item is found that is equal to the + * argument, and returns the index of that item. If no item + * is found, returns -1. + * + * @param item the search item + * @return the index of the item + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the item is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public int indexOf (TreeItem item) { + checkWidget (); + if (item is null) error (DWT.ERROR_NULL_ARGUMENT); + if (item.isDisposed()) error(DWT.ERROR_INVALID_ARGUMENT); + int hwnd = parent.handle; + int hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + return hItem is 0 ? -1 : parent.findIndex (hItem, item.handle); +} + +void redraw () { + if (parent.currentItem is this || parent.drawCount !is 0) return; + int hwnd = parent.handle; + if (!OS.IsWindowVisible (hwnd)) return; + RECT rect = new RECT (); + rect.left = handle; + /* + * When there are no columns and the tree is not + * full selection, redraw only the text. This is + * an optimization to reduce flashing. + */ + bool full = (parent.style & (DWT.FULL_SELECTION | DWT.VIRTUAL)) !is 0; + if (!full) { + int hwndHeader = parent.hwndHeader; + if (hwndHeader !is 0) { + full = OS.SendMessage (hwndHeader, OS.HDM_GETITEMCOUNT, 0, 0) !is 0; + } + if (!full) { + if (parent.hooks (DWT.EraseItem) || parent.hooks (DWT.PaintItem)) { + full = true; + } + } + } + if (OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, full ? 0 : 1, rect) !is 0) { + OS.InvalidateRect (hwnd, rect, true); + } +} + +void redraw (int column, bool drawText, bool drawImage) { + if (parent.currentItem is this || parent.drawCount !is 0) return; + int hwnd = parent.handle; + if (!OS.IsWindowVisible (hwnd)) return; + bool fullImage = column is 0 && drawText && drawImage; + RECT rect = getBounds (column, drawText, drawImage, true, fullImage, true, 0); + OS.InvalidateRect (hwnd, rect, true); +} + +void releaseChildren (bool destroy) { + if (destroy) { + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + parent.releaseItems (handle, tvItem); + } + super.releaseChildren (destroy); +} + +void releaseHandle () { + super.releaseHandle (); + handle = 0; + parent = null; +} + +void releaseWidget () { + super.releaseWidget (); + strings = null; + images = null; + cellBackground = cellForeground = cellFont = null; +} + +/** + * Removes all of the items from the receiver. + * <p> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void removeAll () { + checkWidget (); + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM; + tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + while (tvItem.hItem !is 0) { + OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + TreeItem item = tvItem.lParam !is -1 ? parent.items [tvItem.lParam] : null; + if (item !is null && !item.isDisposed ()) { + item.dispose (); + } else { + parent.releaseItem (tvItem.hItem, tvItem, false); + parent.destroyItem (null, tvItem.hItem); + } + tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + } +} + +/** + * Sets the receiver's background color to the color specified + * by the argument, or to the default system color for the item + * if the argument is null. + * + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + * + */ +public void setBackground (Color color) { + checkWidget (); + if (color !is null && color.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int pixel = -1; + if (color !is null) { + parent.customDraw = true; + pixel = color.handle; + } + if (background is pixel) return; + background = pixel; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (); +} + +/** + * Sets the background color at the given column index in the receiver + * to the color specified by the argument, or to the default system color for the item + * if the argument is null. + * + * @param index the column index + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + * + */ +public void setBackground (int index, Color color) { + checkWidget (); + if (color !is null && color.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + int pixel = -1; + if (color !is null) { + parent.customDraw = true; + pixel = color.handle; + } + if (cellBackground is null) { + cellBackground = new int [count]; + for (int i = 0; i < count; i++) { + cellBackground [i] = -1; + } + } + if (cellBackground [index] is pixel) return; + cellBackground [index] = pixel; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (index, true, true); +} + +/** + * Sets the checked state of the receiver. + * <p> + * + * @param checked the new checked state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setChecked (bool checked) { + checkWidget (); + if ((parent.style & DWT.CHECK) is 0) return; + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + tvItem.hItem = handle; + OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + int state = tvItem.state >> 12; + if (checked) { + if ((state & 0x1) !is 0) state++; + } else { + if ((state & 0x1) is 0) --state; + } + state <<= 12; + if (tvItem.state is state) return; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + tvItem.state = state; + OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); + /* + * Bug in Windows. When TVM_SETITEM is used to set + * the state image of an item inside TVN_GETDISPINFO, + * the new state is not redrawn. The fix is to force + * a redraw. + */ + if ((parent.style & DWT.VIRTUAL) !is 0) { + if (parent.currentItem is this && OS.IsWindowVisible (hwnd)) { + RECT rect = new RECT (); + rect.left = handle; + if (OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, 0, rect) !is 0) { + OS.InvalidateRect (hwnd, rect, true); + } + } + } +} + +/** + * Sets the expanded state of the receiver. + * <p> + * + * @param expanded the new expanded state + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setExpanded (bool expanded) { + checkWidget (); + + /* Do nothing when the item is a leaf or already expanded */ + int hwnd = parent.handle; + if (OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle) is 0) { + return; + } + int state = 0; + if (OS.IsWinCE) { + TVITEM tvItem = new TVITEM (); + tvItem.hItem = handle; + tvItem.mask = OS.TVIF_STATE; + OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + state = tvItem.state; + } else { + /* + * Bug in Windows. Despite the fact that TVM_GETITEMSTATE claims + * to return only the bits specified by the stateMask, when called + * with TVIS_EXPANDED, the entire state is returned. The fix is + * to explicitly check for the TVIS_EXPANDED bit. + */ + state = OS.SendMessage (hwnd, OS.TVM_GETITEMSTATE, handle, OS.TVIS_EXPANDED); + } + if (((state & OS.TVIS_EXPANDED) !is 0) is expanded) return; + + /* + * Feature in Windows. When TVM_EXPAND is used to expand + * an item, the widget scrolls to show the item and the + * newly expanded items. While not strictly incorrect, + * this means that application code that expands tree items + * in a background thread can scroll the widget while the + * user is interacting with it. The fix is to remember + * the top item and the bounds of every tree item, turn + * redraw off, expand the item, scroll back to the top + * item. If none of the rectangles have moved, then + * it is safe to turn redraw back on without redrawing + * the control. + */ + RECT oldRect = null; + RECT [] rects = null; + SCROLLINFO oldInfo = null; + int count = 0, hBottomItem = 0; + bool redraw = false, noScroll = true; + int hTopItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + if (noScroll && hTopItem !is 0) { + oldInfo = new SCROLLINFO (); + oldInfo.cbSize = SCROLLINFO.sizeof; + oldInfo.fMask = OS.SIF_ALL; + if (!OS.GetScrollInfo (hwnd, OS.SB_HORZ, oldInfo)) { + oldInfo = null; + } + if (parent.drawCount is 0 && OS.IsWindowVisible (hwnd)) { + bool noAnimate = true; + count = OS.SendMessage (hwnd, OS.TVM_GETVISIBLECOUNT, 0, 0); + rects = new RECT [count + 1]; + int hItem = hTopItem, index = 0; + while (hItem !is 0 && (noAnimate || hItem !is handle) && index < count) { + RECT rect = new RECT (); + rect.left = hItem; + if (OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, 1, rect) !is 0) { + rects [index++] = rect; + } + hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); + } + if (noAnimate || hItem !is handle) { + redraw = true; + count = index; + hBottomItem = hItem; + oldRect = new RECT (); + OS.GetClientRect (hwnd, oldRect); + int topHandle = parent.topHandle (); + OS.UpdateWindow (topHandle); + OS.DefWindowProc (topHandle, OS.WM_SETREDRAW, 0, 0); + if (hwnd !is topHandle) { + OS.UpdateWindow (hwnd); + OS.DefWindowProc (hwnd, OS.WM_SETREDRAW, 0, 0); + } + /* + * This code is intentionally commented. + */ +// OS.SendMessage (hwnd, OS.WM_SETREDRAW, 0, 0); + } + } + } + + /* + * Feature in Windows. When the user collapses the root + * of a subtree that has the focus item, Windows moves + * the selection to the root of the subtree and issues + * a TVN_SELCHANGED to inform the programmer that the + * selection has changed. When the programmer collapses + * the same subtree using TVM_EXPAND, Windows does not + * send the selection changed notification. This is not + * strictly wrong but is inconsistent. The fix is to + * check whether the selection has changed and issue + * the event. + */ + int hOldItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + + /* Expand or collapse the item */ + parent.ignoreExpand = true; + OS.SendMessage (hwnd, OS.TVM_EXPAND, expanded ? OS.TVE_EXPAND : OS.TVE_COLLAPSE, handle); + parent.ignoreExpand = false; + + /* Scroll back to the top item */ + if (noScroll && hTopItem !is 0) { + bool collapsed = false; + if (!expanded) { + RECT rect = new RECT (); + rect.left = hTopItem; + while (hTopItem !is 0 && OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, 0, rect) is 0) { + hTopItem = rect.left = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_PARENT, hTopItem); + collapsed = true; + } + } + bool scrolled = true; + if (hTopItem !is 0) { + OS.SendMessage (hwnd, OS.TVM_SELECTITEM, OS.TVGN_FIRSTVISIBLE, hTopItem); + scrolled = hTopItem !is OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0); + } + if (!collapsed && !scrolled && oldInfo !is null) { + SCROLLINFO newInfo = new SCROLLINFO (); + newInfo.cbSize = SCROLLINFO.sizeof; + newInfo.fMask = OS.SIF_ALL; + if (OS.GetScrollInfo (hwnd, OS.SB_HORZ, newInfo)) { + if (oldInfo.nPos !is newInfo.nPos) { + int lParam = OS.SB_THUMBPOSITION | ((oldInfo.nPos << 16) & 0xFFFF0000); + OS.SendMessage (hwnd, OS.WM_HSCROLL, lParam, 0); + } + } + } + if (redraw) { + bool fixScroll = false; + if (!collapsed && !scrolled) { + RECT newRect = new RECT (); + OS.GetClientRect (hwnd, newRect); + if (OS.EqualRect (oldRect, newRect)) { + int hItem = hTopItem, index = 0; + while (hItem !is 0 && index < count) { + RECT rect = new RECT (); + rect.left = hItem; + if (OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, 1, rect) !is 0) { + if (!OS.EqualRect (rect, rects [index])) { + break; + } + } + hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem); + index++; + } + fixScroll = index is count && hItem is hBottomItem; + } + } + int topHandle = parent.topHandle (); + OS.DefWindowProc (topHandle, OS.WM_SETREDRAW, 1, 0); + if (hwnd !is topHandle) { + OS.DefWindowProc (hwnd, OS.WM_SETREDRAW, 1, 0); + } + /* + * This code is intentionally commented. + */ +// OS.SendMessage (hwnd, OS.WM_SETREDRAW, 1, 0); + if (fixScroll) { + parent.updateScrollBar (); + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_ALL; + if (OS.GetScrollInfo (hwnd, OS.SB_VERT, info)) { + OS.SetScrollInfo (hwnd, OS.SB_VERT, info, true); + } + if (handle is hBottomItem) { + RECT rect = new RECT (); + rect.left = hBottomItem; + if (OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, 0, rect) !is 0) { + OS.InvalidateRect (hwnd, rect, true); + } + } + } else { + if (OS.IsWinCE) { + OS.InvalidateRect (topHandle, null, true); + if (hwnd !is topHandle) OS.InvalidateRect (hwnd, null, true); + } else { + int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; + OS.RedrawWindow (topHandle, null, 0, flags); + } + } + } + } + + /* Check for a selection event */ + int hNewItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0); + if (hNewItem !is hOldItem) { + Event event = new Event (); + if (hNewItem !is 0) { + event.item = parent._getItem (hNewItem); + parent.hAnchor = hNewItem; + } + parent.sendEvent (DWT.Selection, event); + } +} + +/** + * Sets the font that the receiver will use to paint textual information + * for this item to the font specified by the argument, or to the default font + * for that kind of control if the argument is null. + * + * @param font the new font (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.0 + */ +public void setFont (Font font){ + checkWidget (); + if (font !is null && font.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int hFont = -1; + if (font !is null) { + parent.customDraw = true; + hFont = font.handle; + } + if (this.font is hFont) return; + this.font = hFont; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + /* + * Bug in Windows. When the font is changed for an item, + * the bounds for the item are not updated, causing the text + * to be clipped. The fix is to reset the text, causing + * Windows to compute the new bounds using the new font. + */ + if ((parent.style & DWT.VIRTUAL) is 0 && !cached && !parent.painted) { + return; + } + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; + tvItem.hItem = handle; + tvItem.pszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); +} + + +/** + * Sets the font that the receiver will use to paint textual information + * for the specified cell in this item to the font specified by the + * argument, or to the default font for that kind of control if the + * argument is null. + * + * @param index the column index + * @param font the new font (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setFont (int index, Font font) { + checkWidget (); + if (font !is null && font.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + int hFont = -1; + if (font !is null) { + parent.customDraw = true; + hFont = font.handle; + } + if (cellFont is null) { + cellFont = new int [count]; + for (int i = 0; i < count; i++) { + cellFont [i] = -1; + } + } + if (cellFont [index] is hFont) return; + cellFont [index] = hFont; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + /* + * Bug in Windows. When the font is changed for an item, + * the bounds for the item are not updated, causing the text + * to be clipped. The fix is to reset the text, causing + * Windows to compute the new bounds using the new font. + */ + if (index is 0) { + if ((parent.style & DWT.VIRTUAL) is 0 && !cached && !parent.painted) { + return; + } + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; + tvItem.hItem = handle; + tvItem.pszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); + } else { + redraw (index, true, false); + } +} + +/** + * Sets the receiver's foreground color to the color specified + * by the argument, or to the default system color for the item + * if the argument is null. + * + * @param color the new color (or null) + * + * @since 2.0 + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 2.0 + * + */ +public void setForeground (Color color) { + checkWidget (); + if (color !is null && color.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int pixel = -1; + if (color !is null) { + parent.customDraw = true; + pixel = color.handle; + } + if (foreground is pixel) return; + foreground = pixel; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (); +} + +/** + * Sets the foreground color at the given column index in the receiver + * to the color specified by the argument, or to the default system color for the item + * if the argument is null. + * + * @param index the column index + * @param color the new color (or null) + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + * + */ +public void setForeground (int index, Color color){ + checkWidget (); + if (color !is null && color.isDisposed ()) { + DWT.error (DWT.ERROR_INVALID_ARGUMENT); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + int pixel = -1; + if (color !is null) { + parent.customDraw = true; + pixel = color.handle; + } + if (cellForeground is null) { + cellForeground = new int [count]; + for (int i = 0; i < count; i++) { + cellForeground [i] = -1; + } + } + if (cellForeground [index] is pixel) return; + cellForeground [index] = pixel; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + redraw (index, true, false); +} + +/** + * Sets the grayed state of the checkbox for this item. This state change + * only applies if the Tree was created with the DWT.CHECK style. + * + * @param grayed the new grayed state of the checkbox + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setGrayed (bool grayed) { + checkWidget (); + if ((parent.style & DWT.CHECK) is 0) return; + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + tvItem.hItem = handle; + OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + int state = tvItem.state >> 12; + if (grayed) { + if (state <= 2) state +=2; + } else { + if (state > 2) state -=2; + } + state <<= 12; + if (tvItem.state is state) return; + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + tvItem.state = state; + OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); + /* + * Bug in Windows. When TVM_SETITEM is used to set + * the state image of an item inside TVN_GETDISPINFO, + * the new state is not redrawn. The fix is to force + * a redraw. + */ + if ((parent.style & DWT.VIRTUAL) !is 0) { + if (parent.currentItem is this && OS.IsWindowVisible (hwnd)) { + RECT rect = new RECT (); + rect.left = handle; + if (OS.SendMessage (hwnd, OS.TVM_GETITEMRECT, 0, rect) !is 0) { + OS.InvalidateRect (hwnd, rect, true); + } + } + } +} + +/** + * Sets the image for multiple columns in the tree. + * + * @param images the array of new images + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the array of images is null</li> + * <li>ERROR_INVALID_ARGUMENT - if one of the images has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setImage (Image [] images) { + checkWidget(); + if (images is null) error (DWT.ERROR_NULL_ARGUMENT); + for (int i=0; i<images.length; i++) { + setImage (i, images [i]); + } +} + +/** + * Sets the receiver's image at a column. + * + * @param index the column index + * @param image the new image + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setImage (int index, Image image) { + checkWidget(); + if (image !is null && image.isDisposed ()) { + error(DWT.ERROR_INVALID_ARGUMENT); + } + Image oldImage = null; + if (index is 0) { + if (image !is null && image.type is DWT.ICON) { + if (image.equals (this.image)) return; + } + oldImage = this.image; + super.setImage (image); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + if (images is null && index !is 0) { + images = new Image [count]; + images [0] = image; + } + if (images !is null) { + if (image !is null && image.type is DWT.ICON) { + if (image.equals (images [index])) return; + } + oldImage = images [index]; + images [index] = image; + } + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + + /* Ensure that the image list is created */ + //TODO - items that are not in column zero don't need to be in the image list + parent.imageIndex (image, index); + + if (index is 0) { + if ((parent.style & DWT.VIRTUAL) is 0 &&!cached && !parent.painted) { + return; + } + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_IMAGE | OS.TVIF_SELECTEDIMAGE; + tvItem.hItem = handle; + tvItem.iImage = tvItem.iSelectedImage = OS.I_IMAGECALLBACK; + /* + * Bug in Windows. When I_IMAGECALLBACK is used with TVM_SETITEM + * to indicate that an image has changed, Windows does not draw + * the new image. The fix is to use LPSTR_TEXTCALLBACK to force + * Windows to ask for the text, causing Windows to ask for both. + */ + tvItem.mask |= OS.TVIF_TEXT; + tvItem.pszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); + } else { + bool drawText = (image is null && oldImage !is null) || (image !is null && oldImage is null); + redraw (index, drawText, true); + } +} + +public void setImage (Image image) { + checkWidget (); + setImage (0, image); +} + +/** + * Sets the number of child items contained in the receiver. + * + * @param count the number of items + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.2 + */ +public void setItemCount (int count) { + checkWidget (); + count = Math.max (0, count); + int hwnd = parent.handle; + int hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, handle); + parent.setItemCount (count, handle, hItem); +} + +/** + * Sets the text for multiple columns in the tree. + * + * @param strings the array of new strings + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setText (String [] strings) { + checkWidget(); + if (strings is null) error (DWT.ERROR_NULL_ARGUMENT); + for (int i=0; i<strings.length; i++) { + String string = strings [i]; + if (string !is null) setText (i, string); + } +} + +/** + * Sets the receiver's text at a column + * + * @param index the column index + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the text is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.1 + */ +public void setText (int index, String string) { + checkWidget(); + if (string is null) error (DWT.ERROR_NULL_ARGUMENT); + if (index is 0) { + if (string.equals (text)) return; + super.setText (string); + } + int count = Math.max (1, parent.getColumnCount ()); + if (0 > index || index > count - 1) return; + if (strings is null && index !is 0) { + strings = new String [count]; + strings [0] = text; + } + if (strings !is null) { + if (string.equals (strings [index])) return; + strings [index] = string; + } + if ((parent.style & DWT.VIRTUAL) !is 0) cached = true; + if (index is 0) { + if ((parent.style & DWT.VIRTUAL) is 0 && !cached && !parent.painted) { + return; + } + int hwnd = parent.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_TEXT; + tvItem.hItem = handle; + tvItem.pszText = OS.LPSTR_TEXTCALLBACK; + OS.SendMessage (hwnd, OS.TVM_SETITEM, 0, tvItem); + } else { + redraw (index, true, false); + } +} + +public void setText (String string) { + checkWidget(); + setText (0, string); +} + +/*public*/ void sort () { + checkWidget (); + if ((parent.style & DWT.VIRTUAL) !is 0) return; + parent.sort (handle, false); +} + +} +++/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/TypedListener.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,301 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwt.widgets.TypedListener; + + +import dwt.internal.DWTEventListener; +import dwt.DWT; +import dwt.widgets.Listener; +import dwt.widgets.Event; +import dwt.events.ArmEvent; +import dwt.events.ArmListener; +import dwt.events.ControlEvent; +import dwt.events.ControlListener; +import dwt.events.DisposeEvent; +import dwt.events.DisposeListener; +import dwt.events.DragDetectEvent; +import dwt.events.DragDetectListener; +import dwt.events.ExpandEvent; +import dwt.events.ExpandListener; +import dwt.events.FocusEvent; +import dwt.events.FocusListener; +import dwt.events.HelpEvent; +import dwt.events.HelpListener; +import dwt.events.KeyEvent; +import dwt.events.KeyListener; +import dwt.events.MenuEvent; +import dwt.events.MenuListener; +import dwt.events.MenuDetectEvent; +import dwt.events.MenuDetectListener; +import dwt.events.ModifyEvent; +import dwt.events.ModifyListener; +import dwt.events.MouseEvent; +import dwt.events.MouseListener; +import dwt.events.MouseMoveListener; +import dwt.events.MouseTrackListener; +import dwt.events.MouseWheelListener; +import dwt.events.PaintEvent; +import dwt.events.PaintListener; +import dwt.events.SelectionEvent; +import dwt.events.SelectionListener; +import dwt.events.ShellEvent; +import dwt.events.ShellListener; +import dwt.events.TraverseEvent; +import dwt.events.TraverseListener; +import dwt.events.TreeEvent; +import dwt.events.TreeListener; +import dwt.events.VerifyEvent; +import dwt.events.VerifyListener; +import dwt.graphics.GC; + + +/** + * Instances of this class are <em>internal DWT implementation</em> + * objects which provide a mapping between the typed and untyped + * listener mechanisms that DWT supports. + * <p> + * <b>IMPORTANT:</b> This class is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It should never be + * referenced from application code. + * </p> + * + * @see Listener + */ +public class TypedListener : Listener { + + /** + * The receiver's event listener + */ + protected DWTEventListener eventListener; + +/** + * Constructs a new instance of this class for the given event listener. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It should never be + * referenced from application code. + * </p> + * + * @param listener the event listener to store in the receiver + */ +public this (DWTEventListener listener) { + eventListener = listener; +} + +/** + * Returns the receiver's event listener. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It should never be + * referenced from application code. + * </p> + * + * @return the receiver's event listener + */ +public DWTEventListener getEventListener () { + return eventListener; +} + +/** + * Handles the given event. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It should never be + * referenced from application code. + * </p> + * @param e the event to handle + */ +public void handleEvent (Event e) { + switch (e.type) { + case DWT.Activate: { + (cast(ShellListener) eventListener).shellActivated(new ShellEvent(e)); + break; + } + case DWT.Arm: { + (cast(ArmListener) eventListener).widgetArmed (new ArmEvent (e)); + break; + } + case DWT.Close: { + /* Fields set by Decorations */ + ShellEvent event = new ShellEvent (e); + (cast(ShellListener) eventListener).shellClosed(event); + e.doit = event.doit; + break; + } + case DWT.Collapse: { + if ( auto l = cast(TreeListener)eventListener ) { + l.treeCollapsed(new TreeEvent(e)); + } else { + (cast(ExpandListener) eventListener).itemCollapsed(new ExpandEvent(e)); + } + break; + } + case DWT.Deactivate: { + (cast(ShellListener) eventListener).shellDeactivated(new ShellEvent(e)); + break; + } + case DWT.Deiconify: { + (cast(ShellListener) eventListener).shellDeiconified(new ShellEvent(e)); + break; + } + case DWT.DefaultSelection: { + (cast(SelectionListener)eventListener).widgetDefaultSelected(new SelectionEvent(e)); + break; + } + case DWT.Dispose: { + (cast(DisposeListener) eventListener).widgetDisposed(new DisposeEvent(e)); + break; + } + case DWT.DragDetect: { + (cast(DragDetectListener) eventListener).dragDetected(new DragDetectEvent(e)); + break; + } + case DWT.Expand: { + if (auto l = cast(TreeListener)eventListener ) { + l.treeExpanded(new TreeEvent(e)); + } else { + (cast(ExpandListener) eventListener).itemExpanded(new ExpandEvent(e)); + } + break; + } + case DWT.FocusIn: { + (cast(FocusListener) eventListener).focusGained(new FocusEvent(e)); + break; + } + case DWT.FocusOut: { + (cast(FocusListener) eventListener).focusLost(new FocusEvent(e)); + break; + } + case DWT.Help: { + (cast(HelpListener) eventListener).helpRequested (new HelpEvent (e)); + break; + } + case DWT.Hide: { + (cast(MenuListener) eventListener).menuHidden(new MenuEvent(e)); + break; + } + case DWT.Iconify: { + (cast(ShellListener) eventListener).shellIconified(new ShellEvent(e)); + break; + } + case DWT.KeyDown: { + /* Fields set by Control */ + KeyEvent event = new KeyEvent(e); + (cast(KeyListener) eventListener).keyPressed(event); + e.doit = event.doit; + break; + } + case DWT.KeyUp: { + /* Fields set by Control */ + KeyEvent event = new KeyEvent(e); + (cast(KeyListener) eventListener).keyReleased(event); + e.doit = event.doit; + break; + } + case DWT.Modify: { + (cast(ModifyListener) eventListener).modifyText(new ModifyEvent(e)); + break; + } + case DWT.MenuDetect: { + MenuDetectEvent event = new MenuDetectEvent(e); + (cast(MenuDetectListener) eventListener).menuDetected(event); + e.x = event.x; + e.y = event.y; + e.doit = event.doit; + break; + } + case DWT.MouseDown: { + (cast(MouseListener) eventListener).mouseDown(new MouseEvent(e)); + break; + } + case DWT.MouseDoubleClick: { + (cast(MouseListener) eventListener).mouseDoubleClick(new MouseEvent(e)); + break; + } + case DWT.MouseEnter: { + (cast(MouseTrackListener) eventListener).mouseEnter (new MouseEvent (e)); + break; + } + case DWT.MouseExit: { + (cast(MouseTrackListener) eventListener).mouseExit (new MouseEvent (e)); + break; + } + case DWT.MouseHover: { + (cast(MouseTrackListener) eventListener).mouseHover (new MouseEvent (e)); + break; + } + case DWT.MouseMove: { + (cast(MouseMoveListener) eventListener).mouseMove(new MouseEvent(e)); + return; + } + case DWT.MouseWheel: { + (cast(MouseWheelListener) eventListener).mouseScrolled(new MouseEvent(e)); + return; + } + case DWT.MouseUp: { + (cast(MouseListener) eventListener).mouseUp(new MouseEvent(e)); + break; + } + case DWT.Move: { + (cast(ControlListener) eventListener).controlMoved(new ControlEvent(e)); + break; + } + case DWT.Paint: { + /* Fields set by Control */ + PaintEvent event = new PaintEvent (e); + (cast(PaintListener) eventListener).paintControl (event); + e.gc = event.gc; + break; + } + case DWT.Resize: { + (cast(ControlListener) eventListener).controlResized(new ControlEvent(e)); + break; + } + case DWT.Selection: { + /* Fields set by Sash */ + SelectionEvent event = new SelectionEvent (e); + (cast(SelectionListener) eventListener).widgetSelected (event); + e.x = event.x; + e.y = event.y; + e.doit = event.doit; + break; + } + case DWT.Show: { + (cast(MenuListener) eventListener).menuShown(new MenuEvent(e)); + break; + } + case DWT.Traverse: { + /* Fields set by Control */ + TraverseEvent event = new TraverseEvent (e); + (cast(TraverseListener) eventListener).keyTraversed (event); + e.detail = event.detail; + e.doit = event.doit; + break; + } + case DWT.Verify: { + /* Fields set by Text, RichText */ + VerifyEvent event = new VerifyEvent (e); + (cast(VerifyListener) eventListener).verifyText (event); + e.text = event.text; + e.doit = event.doit; + break; + } + default: + } +} + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Widget.d Mon Jan 28 04:47:28 2008 +0100 @@ -0,0 +1,2436 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +module dwt.widgets.Widget; + +import dwt.widgets.Display; + +class Widget { + Display display; + void checkWidget(); + void releaseWidget(); + void releaseChildren(bool); + void release(bool); + void releaseParent(); + bool isDisposed(); + void dispose(); + void error(int); + this () ; + this (Widget parent, int style) ; +} +/++ +import dwt.DWT; +import dwt.DWTException; +import dwt.events.DisposeListener; +import dwt.graphics.GC; +import dwt.graphics.GCData; +import dwt.internal.DWTEventListener; +import dwt.internal.win32.LRESULT; +import dwt.internal.win32.MSG; +import dwt.internal.win32.OS; +import dwt.internal.win32.PAINTSTRUCT; +import dwt.internal.win32.POINT; +import dwt.internal.win32.RECT; +import dwt.internal.win32.SHRGINFO; +import dwt.internal.win32.TRACKMOUSEEVENT; + +/** + * This class is the abstract superclass of all user interface objects. + * Widgets are created, disposed and issue notification to listeners + * when events occur which affect them. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>(none)</dd> + * <dt><b>Events:</b></dt> + * <dd>Dispose</dd> + * </dl> + * <p> + * IMPORTANT: This class is intended to be subclassed <em>only</em> + * within the DWT implementation. However, it has not been marked + * final to allow those outside of the DWT development team to implement + * patched versions of the class in order to get around specific + * limitations in advance of when those limitations can be addressed + * by the team. Any class built using subclassing to access the internals + * of this class will likely fail to compile or run between releases and + * may be strongly platform specific. Subclassing should not be attempted + * without an intimate and detailed understanding of the workings of the + * hierarchy. No support is provided for user-written classes which are + * implemented as subclasses of this class. + * </p> + * + * @see #checkSubclass + */ + +public abstract class Widget { + int style, state; + Display display; + EventTable eventTable; + Object data; + + /* Global state flags */ + static final int DISPOSED = 1<<0; + static final int CANVAS = 1<<1; + static final int KEYED_DATA = 1<<2; + static final int DISABLED = 1<<3; + static final int HIDDEN = 1<<4; + + /* A layout was requested on this widget */ + static final int LAYOUT_NEEDED = 1<<5; + + /* The preferred size of a child has changed */ + static final int LAYOUT_CHANGED = 1<<6; + + /* A layout was requested in this widget hierarchy */ + static final int LAYOUT_CHILD = 1<<7; + + /* Background flags */ + static final int THEME_BACKGROUND = 1<<8; + static final int DRAW_BACKGROUND = 1<<9; + static final int PARENT_BACKGROUND = 1<<10; + + /* Dispose and release flags */ + static final int RELEASED = 1<<11; + static final int DISPOSE_SENT = 1<<12; + + /* More global widget state flags */ + static final int TRACK_MOUSE = 1<<13; + static final int FOREIGN_HANDLE = 1<<14; + static final int DRAG_DETECT = 1<<15; + + /* Default size for widgets */ + static final int DEFAULT_WIDTH = 64; + static final int DEFAULT_HEIGHT = 64; + + /* Check and initialize the Common Controls DLL */ + static final int MAJOR = 5, MINOR = 80; + static { + if (!OS.IsWinCE) { + if (OS.COMCTL32_VERSION < OS.VERSION (MAJOR, MINOR)) { + System.out.println ("***WARNING: DWT requires comctl32.dll version " + MAJOR + "." + MINOR + " or greater"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ + System.out.println ("***WARNING: Detected: " + OS.COMCTL32_MAJOR + "." + OS.COMCTL32_MINOR); //$NON-NLS-1$ //$NON-NLS-2$ + } + } + OS.InitCommonControls (); + } + +/** + * Prevents uninitialized instances from being created outside the package. + */ +Widget () { +} + +/** + * Constructs a new instance of this class given its parent + * and a style value describing its behavior and appearance. + * <p> + * The style value is either one of the style constants defined in + * class <code>DWT</code> which is applicable to instances of this + * class, or must be built by <em>bitwise OR</em>'ing together + * (that is, using the <code>int</code> "|" operator) two or more + * of those <code>DWT</code> style constants. The class description + * lists the style constants that are applicable to the class. + * Style bits are also inherited from superclasses. + * </p> + * + * @param parent a widget which will be the parent of the new instance (cannot be null) + * @param style the style of widget to construct + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + * + * @see DWT + * @see #checkSubclass + * @see #getStyle + */ +public Widget (Widget parent, int style) { + checkSubclass (); + checkParent (parent); + this.style = style; + display = parent.display; +} + +void _addListener (int eventType, Listener listener) { + if (eventTable is null) eventTable = new EventTable (); + eventTable.hook (eventType, listener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when an event of the given type occurs. When the + * event does occur in the widget, the listener is notified by + * sending it the <code>handleEvent()</code> message. The event + * type is one of the event constants defined in class <code>DWT</code>. + * + * @param eventType the type of event to listen for + * @param listener the listener which should be notified when the event occurs + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Listener + * @see DWT + * @see #removeListener(int, Listener) + * @see #notifyListeners + */ +public void addListener (int eventType, Listener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + _addListener (eventType, listener); +} + +/** + * Adds the listener to the collection of listeners who will + * be notified when the widget is disposed. When the widget is + * disposed, the listener is notified by sending it the + * <code>widgetDisposed()</code> message. + * + * @param listener the listener which should be notified when the receiver is disposed + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DisposeListener + * @see #removeDisposeListener + */ +public void addDisposeListener (DisposeListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (DWT.Dispose, typedListener); +} + +int callWindowProc (int hwnd, int msg, int wParam, int lParam) { + return 0; +} + +/** + * Returns a style with exactly one style bit set out of + * the specified set of exclusive style bits. All other + * possible bits are cleared when the first matching bit + * is found. Bits that are not part of the possible set + * are untouched. + * + * @param style the original style bits + * @param int0 the 0th possible style bit + * @param int1 the 1st possible style bit + * @param int2 the 2nd possible style bit + * @param int3 the 3rd possible style bit + * @param int4 the 4th possible style bit + * @param int5 the 5th possible style bit + * + * @return the new style bits + */ +static int checkBits (int style, int int0, int int1, int int2, int int3, int int4, int int5) { + int mask = int0 | int1 | int2 | int3 | int4 | int5; + if ((style & mask) is 0) style |= int0; + if ((style & int0) !is 0) style = (style & ~mask) | int0; + if ((style & int1) !is 0) style = (style & ~mask) | int1; + if ((style & int2) !is 0) style = (style & ~mask) | int2; + if ((style & int3) !is 0) style = (style & ~mask) | int3; + if ((style & int4) !is 0) style = (style & ~mask) | int4; + if ((style & int5) !is 0) style = (style & ~mask) | int5; + return style; +} + +void checkOrientation (Widget parent) { + style &= ~DWT.MIRRORED; + if ((style & (DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT)) is 0) { + if (parent !is null) { + if ((parent.style & DWT.LEFT_TO_RIGHT) !is 0) style |= DWT.LEFT_TO_RIGHT; + if ((parent.style & DWT.RIGHT_TO_LEFT) !is 0) style |= DWT.RIGHT_TO_LEFT; + } + } + style = checkBits (style, DWT.LEFT_TO_RIGHT, DWT.RIGHT_TO_LEFT, 0, 0, 0, 0); +} + +void checkOpened () { + /* Do nothing */ +} + +/** + * Throws an exception if the specified widget can not be + * used as a parent for the receiver. + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> + * </ul> + */ +void checkParent (Widget parent) { + if (parent is null) error (DWT.ERROR_NULL_ARGUMENT); + if (parent.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); + parent.checkWidget (); + parent.checkOpened (); +} + +/** + * Checks that this class can be subclassed. + * <p> + * The DWT class library is intended to be subclassed + * only at specific, controlled points (most notably, + * <code>Composite</code> and <code>Canvas</code> when + * implementing new widgets). This method enforces this + * rule unless it is overridden. + * </p><p> + * <em>IMPORTANT:</em> By providing an implementation of this + * method that allows a subclass of a class which does not + * normally allow subclassing to be created, the implementer + * agrees to be fully responsible for the fact that any such + * subclass will likely fail between DWT releases and will be + * strongly platform specific. No support is provided for + * user-written classes which are implemented in this fashion. + * </p><p> + * The ability to subclass outside of the allowed DWT classes + * is intended purely to enable those not on the DWT development + * team to implement patches in order to get around specific + * limitations in advance of when those limitations can be + * addressed by the team. Subclassing should not be attempted + * without an intimate and detailed understanding of the hierarchy. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> + * </ul> + */ +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +/** + * Throws an <code>DWTException</code> if the receiver can not + * be accessed by the caller. This may include both checks on + * the state of the receiver and more generally on the entire + * execution context. This method <em>should</em> be called by + * widget implementors to enforce the standard DWT invariants. + * <p> + * Currently, it is an error to invoke any method (other than + * <code>isDisposed()</code>) on a widget that has had its + * <code>dispose()</code> method called. It is also an error + * to call widget methods from any thread that is different + * from the thread that created the widget. + * </p><p> + * In future releases of DWT, there may be more or fewer error + * checks and exceptions may be thrown for different reasons. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +protected void checkWidget () { + Display display = this.display; + if (display is null) error (DWT.ERROR_WIDGET_DISPOSED); + if (display.thread !is Thread.currentThread ()) error (DWT.ERROR_THREAD_INVALID_ACCESS); + if ((state & DISPOSED) !is 0) error (DWT.ERROR_WIDGET_DISPOSED); +} + +/** + * Destroys the widget in the operating system and releases + * the widget's handle. If the widget does not have a handle, + * this method may hide the widget, mark the widget as destroyed + * or do nothing, depending on the widget. + * <p> + * When a widget is destroyed in the operating system, its + * descendants are also destroyed by the operating system. + * This means that it is only necessary to call <code>destroyWidget</code> + * on the root of the widget tree. + * </p><p> + * This method is called after <code>releaseWidget()</code>. + * </p><p> + * See also <code>releaseChild()</code>, <code>releaseWidget()</code> + * and <code>releaseHandle()</code>. + * </p> + * + * @see #dispose + */ +void destroyWidget () { + releaseHandle (); +} + +int DeferWindowPos(int hWinPosInfo, int hWnd, int hWndInsertAfter, int X, int Y, int cx, int cy, int uFlags){ + if (OS.IsWinCE) { + /* + * Feature in Windows. On Windows CE, DeferWindowPos always causes + * a WM_SIZE message, even when the new size is the same as the old + * size. The fix is to detect that the size has not changed and set + * SWP_NOSIZE. + */ + if ((uFlags & OS.SWP_NOSIZE) is 0) { + RECT lpRect = new RECT (); + OS.GetWindowRect (hWnd, lpRect); + if (cy is lpRect.bottom - lpRect.top && cx is lpRect.right - lpRect.left) { + /* + * Feature in Windows. On Windows CE, DeferWindowPos when called + * with SWP_DRAWFRAME always causes a WM_SIZE message, even + * when SWP_NOSIZE is set and when the new size is the same as the + * old size. The fix is to clear SWP_DRAWFRAME when the size is + * the same. + */ + uFlags &= ~OS.SWP_DRAWFRAME; + uFlags |= OS.SWP_NOSIZE; + } + } + } + return OS.DeferWindowPos (hWinPosInfo, hWnd, hWndInsertAfter, X, Y, cx, cy, uFlags); +} + +/** + * Disposes of the operating system resources associated with + * the receiver and all its descendants. After this method has + * been invoked, the receiver and all descendants will answer + * <code>true</code> when sent the message <code>isDisposed()</code>. + * Any internal connections between the widgets in the tree will + * have been removed to facilitate garbage collection. + * <p> + * NOTE: This method is not called recursively on the descendants + * of the receiver. This means that, widget implementers can not + * detect when a widget is being disposed of by re-implementing + * this method, but should instead listen for the <code>Dispose</code> + * event. + * </p> + * + * @exception DWTException <ul> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #addDisposeListener + * @see #removeDisposeListener + * @see #checkWidget + */ +public void dispose () { + /* + * Note: It is valid to attempt to dispose a widget + * more than once. If this happens, fail silently. + */ + if (isDisposed ()) return; + if (!isValidThread ()) error (DWT.ERROR_THREAD_INVALID_ACCESS); + release (true); +} + +bool dragDetect (int hwnd, int x, int y, bool filter, bool [] detect, bool [] consume) { + if (consume !is null) consume [0] = false; + if (detect !is null) detect [0] = true; + POINT pt = new POINT (); + pt.x = x; + pt.y = y; + OS.ClientToScreen (hwnd, pt); + return OS.DragDetect (hwnd, pt); +} + +/** + * Does whatever widget specific cleanup is required, and then + * uses the code in <code>DWTError.error</code> to handle the error. + * + * @param code the descriptive error code + * + * @see DWT#error(int) + */ +void error (int code) { + DWT.error(code); +} + +bool filters (int eventType) { + return display.filters (eventType); +} + +Widget findItem (int id) { + return null; +} + +char [] fixMnemonic (String string) { + char [] buffer = new char [string.length ()]; + string.getChars (0, string.length (), buffer, 0); + int i = 0, j = 0; + while (i < buffer.length) { + if (buffer [i] is '&') { + if (i + 1 < buffer.length && buffer [i + 1] is '&') { + buffer [j++] = ' '; + i++; + } + i++; + } else { + buffer [j++] = buffer [i++]; + } + } + while (j < buffer.length) buffer [j++] = 0; + return buffer; +} + +/** + * Returns the application defined widget data associated + * with the receiver, or null if it has not been set. The + * <em>widget data</em> is a single, unnamed field that is + * stored with every widget. + * <p> + * Applications may put arbitrary objects in this field. If + * the object stored in the widget data needs to be notified + * when the widget is disposed of, it is the application's + * responsibility to hook the Dispose event on the widget and + * do so. + * </p> + * + * @return the widget data + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - when the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li> + * </ul> + * + * @see #setData(Object) + */ +public Object getData () { + checkWidget(); + return (state & KEYED_DATA) !is 0 ? ((Object []) data) [0] : data; +} + +/** + * Returns the application defined property of the receiver + * with the specified name, or null if it has not been set. + * <p> + * Applications may have associated arbitrary objects with the + * receiver in this fashion. If the objects stored in the + * properties need to be notified when the widget is disposed + * of, it is the application's responsibility to hook the + * Dispose event on the widget and do so. + * </p> + * + * @param key the name of the property + * @return the value of the property or null if it has not been set + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the key is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #setData(String, Object) + */ +public Object getData (String key) { + checkWidget(); + if (key is null) error (DWT.ERROR_NULL_ARGUMENT); + if ((state & KEYED_DATA) !is 0) { + Object [] table = (Object []) data; + for (int i=1; i<table.length; i+=2) { + if (key.equals (table [i])) return table [i+1]; + } + } + return null; +} + +/** + * Returns the <code>Display</code> that is associated with + * the receiver. + * <p> + * A widget's display is either provided when it is created + * (for example, top level <code>Shell</code>s) or is the + * same as its parent's display. + * </p> + * + * @return the receiver's display + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Display getDisplay () { + Display display = this.display; + if (display is null) error (DWT.ERROR_WIDGET_DISPOSED); + return display; +} + +Menu getMenu () { + return null; +} + +/** + * Returns the name of the widget. This is the name of + * the class without the package name. + * + * @return the name of the widget + */ +String getName () { + String string = getClass ().getName (); + int index = string.lastIndexOf ('.'); + if (index is -1) return string; + return string.substring (index + 1, string.length ()); +} + +/* + * Returns a short printable representation for the contents + * of a widget. For example, a button may answer the label + * text. This is used by <code>toString</code> to provide a + * more meaningful description of the widget. + * + * @return the contents string for the widget + * + * @see #toString + */ +String getNameText () { + return ""; //$NON-NLS-1$ +} + +/** + * Returns the receiver's style information. + * <p> + * Note that the value which is returned by this method <em>may + * not match</em> the value which was provided to the constructor + * when the receiver was created. This can occur when the underlying + * operating system does not support a particular combination of + * requested styles. For example, if the platform widget used to + * implement a particular DWT widget always has scroll bars, the + * result of calling this method would always have the + * <code>DWT.H_SCROLL</code> and <code>DWT.V_SCROLL</code> bits set. + * </p> + * + * @return the style bits + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public int getStyle () { + checkWidget(); + return style; +} + +/* + * Returns <code>true</code> if the specified eventType is + * hooked, and <code>false</code> otherwise. Implementations + * of DWT can avoid creating objects and sending events + * when an event happens in the operating system but + * there are no listeners hooked for the event. + * + * @param eventType the event to be checked + * + * @return <code>true</code> when the eventType is hooked and <code>false</code> otherwise + * + * @see #isListening + */ +bool hooks (int eventType) { + if (eventTable is null) return false; + return eventTable.hooks (eventType); +} + +/** + * Returns <code>true</code> if the widget has been disposed, + * and <code>false</code> otherwise. + * <p> + * This method gets the dispose state for the widget. + * When a widget has been disposed, it is an error to + * invoke any other method using the widget. + * </p> + * + * @return <code>true</code> when the widget is disposed and <code>false</code> otherwise + */ +public bool isDisposed () { + return (state & DISPOSED) !is 0; +} + +/** + * Returns <code>true</code> if there are any listeners + * for the specified event type associated with the receiver, + * and <code>false</code> otherwise. The event type is one of + * the event constants defined in class <code>DWT</code>. + * + * @param eventType the type of event + * @return true if the event is hooked + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT + */ +public bool isListening (int eventType) { + checkWidget(); + return hooks (eventType); +} + +/* + * Returns <code>true</code> when subclassing is + * allowed and <code>false</code> otherwise + * + * @return <code>true</code> when subclassing is allowed and <code>false</code> otherwise + */ +bool isValidSubclass () { + return Display.isValidClass (getClass ()); +} + +/* + * Returns <code>true</code> when the current thread is + * the thread that created the widget and <code>false</code> + * otherwise. + * + * @return <code>true</code> when the current thread is the thread that created the widget and <code>false</code> otherwise + */ +bool isValidThread () { + return getDisplay ().isValidThread (); +} + +void mapEvent (int hwnd, Event event) { +} + +GC new_GC (GCData data) { + return null; +} + +/** + * Notifies all of the receiver's listeners for events + * of the given type that one such event has occurred by + * invoking their <code>handleEvent()</code> method. The + * event type is one of the event constants defined in class + * <code>DWT</code>. + * + * @param eventType the type of event which has occurred + * @param event the event data + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DWT + * @see #addListener + * @see #removeListener(int, Listener) + */ +public void notifyListeners (int eventType, Event event) { + checkWidget(); + if (event is null) event = new Event (); + sendEvent (eventType, event); +} + +void postEvent (int eventType) { + sendEvent (eventType, null, false); +} + +void postEvent (int eventType, Event event) { + sendEvent (eventType, event, false); +} + +/* + * Releases the widget hierarchy and optionally destroys + * the receiver. + * <p> + * Typically, a widget with children will broadcast this + * message to all children so that they too can release their + * resources. The <code>releaseHandle</code> method is used + * as part of this broadcast to zero the handle fields of the + * children without calling <code>destroyWidget</code>. In + * this scenario, the children are actually destroyed later, + * when the operating system destroys the widget tree. + * </p> + * + * @param destroy indicates that the receiver should be destroyed + * + * @see #dispose + * @see #releaseHandle + * @see #releaseParent + * @see #releaseWidget +*/ +void release (bool destroy) { + if ((state & DISPOSE_SENT) is 0) { + state |= DISPOSE_SENT; + sendEvent (DWT.Dispose); + } + if ((state & DISPOSED) is 0) { + releaseChildren (destroy); + } + if ((state & RELEASED) is 0) { + state |= RELEASED; + if (destroy) { + releaseParent (); + releaseWidget (); + destroyWidget (); + } else { + releaseWidget (); + releaseHandle (); + } + } +} + +void releaseChildren (bool destroy) { +} + +/* + * Releases the widget's handle by zero'ing it out. + * Does not destroy or release any operating system + * resources. + * <p> + * This method is called after <code>releaseWidget</code> + * or from <code>destroyWidget</code> when a widget is being + * destroyed to ensure that the widget is marked as destroyed + * in case the act of destroying the widget in the operating + * system causes application code to run in callback that + * could access the widget. + * </p> + * + * @see #dispose + * @see #releaseChildren + * @see #releaseParent + * @see #releaseWidget + */ +void releaseHandle () { + state |= DISPOSED; + display = null; +} + +/* + * Releases the receiver, a child in a widget hierarchy, + * from its parent. + * <p> + * When a widget is destroyed, it may be necessary to remove + * it from an internal data structure of the parent. When + * a widget has no handle, it may also be necessary for the + * parent to hide the widget or otherwise indicate that the + * widget has been disposed. For example, disposing a menu + * bar requires that the menu bar first be released from the + * shell when the menu bar is active. + * </p> + * + * @see #dispose + * @see #releaseChildren + * @see #releaseWidget + * @see #releaseHandle + */ +void releaseParent () { +} + +/* + * Releases any internal resources back to the operating + * system and clears all fields except the widget handle. + * <p> + * When a widget is destroyed, resources that were acquired + * on behalf of the programmer need to be returned to the + * operating system. For example, if the widget made a + * copy of an icon, supplied by the programmer, this copy + * would be freed in <code>releaseWidget</code>. Also, + * to assist the garbage collector and minimize the amount + * of memory that is not reclaimed when the programmer keeps + * a reference to a disposed widget, all fields except the + * handle are zero'd. The handle is needed by <code>destroyWidget</code>. + * </p> + * + * @see #dispose + * @see #releaseChildren + * @see #releaseHandle + * @see #releaseParent + */ +void releaseWidget () { + eventTable = null; + data = null; +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when an event of the given type occurs. The event + * type is one of the event constants defined in class <code>DWT</code>. + * + * @param eventType the type of event to listen for + * @param listener the listener which should no longer be notified when the event occurs + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Listener + * @see DWT + * @see #addListener + * @see #notifyListeners + */ +public void removeListener (int eventType, Listener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (eventType, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when an event of the given type occurs. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the DWT + * public API. It is marked public only so that it can be shared + * within the packages provided by DWT. It should never be + * referenced from application code. + * </p> + * + * @param eventType the type of event to listen for + * @param listener the listener which should no longer be notified when the event occurs + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see Listener + * @see #addListener + */ +protected void removeListener (int eventType, DWTEventListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (eventType, listener); +} + +/** + * Removes the listener from the collection of listeners who will + * be notified when the widget is disposed. + * + * @param listener the listener which should no longer be notified when the receiver is disposed + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see DisposeListener + * @see #addDisposeListener + */ +public void removeDisposeListener (DisposeListener listener) { + checkWidget(); + if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); + if (eventTable is null) return; + eventTable.unhook (DWT.Dispose, listener); +} + +bool sendDragEvent (int button, int x, int y) { + Event event = new Event (); + event.button = button; + event.x = x; + event.y = y; + setInputState (event, DWT.DragDetect); + postEvent (DWT.DragDetect, event); + if (isDisposed ()) return false; + return event.doit; +} + +bool sendDragEvent (int button, int stateMask, int x, int y) { + Event event = new Event (); + event.button = button; + event.x = x; + event.y = y; + event.stateMask = stateMask; + postEvent (DWT.DragDetect, event); + if (isDisposed ()) return false; + return event.doit; +} + +void sendEvent (Event event) { + Display display = event.display; + if (!display.filterEvent (event)) { + if (eventTable !is null) eventTable.sendEvent (event); + } +} + +void sendEvent (int eventType) { + sendEvent (eventType, null, true); +} + +void sendEvent (int eventType, Event event) { + sendEvent (eventType, event, true); +} + +void sendEvent (int eventType, Event event, bool send) { + if (eventTable is null && !display.filters (eventType)) { + return; + } + if (event is null) event = new Event (); + event.type = eventType; + event.display = display; + event.widget = this; + if (event.time is 0) { + event.time = display.getLastEventTime (); + } + if (send) { + sendEvent (event); + } else { + display.postEvent (event); + } +} + +bool sendKeyEvent (int type, int msg, int wParam, int lParam) { + Event event = new Event (); + if (!setKeyState (event, type, wParam, lParam)) return true; + return sendKeyEvent (type, msg, wParam, lParam, event); +} + +bool sendKeyEvent (int type, int msg, int wParam, int lParam, Event event) { + sendEvent (type, event); + if (isDisposed ()) return false; + return event.doit; +} + +bool sendMouseEvent (int type, int button, int hwnd, int msg, int wParam, int lParam) { + return sendMouseEvent (type, button, display.getClickCount (type, button, hwnd, lParam), 0, false, hwnd, msg, wParam, lParam); +} + +bool sendMouseEvent (int type, int button, int count, int detail, bool send, int hwnd, int msg, int wParam, int lParam) { + if (!hooks (type) && !filters (type)) return true; + Event event = new Event (); + event.button = button; + event.detail = detail; + event.count = count; + event.x = (short) (lParam & 0xFFFF); + event.y = (short) (lParam >> 16); + setInputState (event, type); + mapEvent (hwnd, event); + if (send) { + sendEvent (type, event); + if (isDisposed ()) return false; + } else { + postEvent (type, event); + } + return event.doit; +} + +/** + * Sets the application defined widget data associated + * with the receiver to be the argument. The <em>widget + * data</em> is a single, unnamed field that is stored + * with every widget. + * <p> + * Applications may put arbitrary objects in this field. If + * the object stored in the widget data needs to be notified + * when the widget is disposed of, it is the application's + * responsibility to hook the Dispose event on the widget and + * do so. + * </p> + * + * @param data the widget data + * + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - when the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li> + * </ul> + * + * @see #getData() + */ +public void setData (Object data) { + checkWidget(); + if ((state & KEYED_DATA) !is 0) { + ((Object []) this.data) [0] = data; + } else { + this.data = data; + } +} + +/** + * Sets the application defined property of the receiver + * with the specified name to the given value. + * <p> + * Applications may associate arbitrary objects with the + * receiver in this fashion. If the objects stored in the + * properties need to be notified when the widget is disposed + * of, it is the application's responsibility to hook the + * Dispose event on the widget and do so. + * </p> + * + * @param key the name of the property + * @param value the new value for the property + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the key is null</li> + * </ul> + * @exception DWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @see #getData(String) + */ +public void setData (String key, Object value) { + checkWidget(); + if (key is null) error (DWT.ERROR_NULL_ARGUMENT); + int index = 1; + Object [] table = null; + if ((state & KEYED_DATA) !is 0) { + table = (Object []) data; + while (index < table.length) { + if (key.equals (table [index])) break; + index += 2; + } + } + if (value !is null) { + if ((state & KEYED_DATA) !is 0) { + if (index is table.length) { + Object [] newTable = new Object [table.length + 2]; + System.arraycopy (table, 0, newTable, 0, table.length); + data = table = newTable; + } + } else { + table = new Object [3]; + table [0] = data; + data = table; + state |= KEYED_DATA; + } + table [index] = key; + table [index + 1] = value; + } else { + if ((state & KEYED_DATA) !is 0) { + if (index !is table.length) { + int length = table.length - 2; + if (length is 1) { + data = table [0]; + state &= ~KEYED_DATA; + } else { + Object [] newTable = new Object [length]; + System.arraycopy (table, 0, newTable, 0, index); + System.arraycopy (table, index + 2, newTable, index, length - index); + data = newTable; + } + } + } + } +} + +bool sendFocusEvent (int type) { + sendEvent (type); + // widget could be disposed at this point + return true; +} + +bool setInputState (Event event, int type) { + if (OS.GetKeyState (OS.VK_MENU) < 0) event.stateMask |= DWT.ALT; + if (OS.GetKeyState (OS.VK_SHIFT) < 0) event.stateMask |= DWT.SHIFT; + if (OS.GetKeyState (OS.VK_CONTROL) < 0) event.stateMask |= DWT.CONTROL; + if (OS.GetKeyState (OS.VK_LBUTTON) < 0) event.stateMask |= DWT.BUTTON1; + if (OS.GetKeyState (OS.VK_MBUTTON) < 0) event.stateMask |= DWT.BUTTON2; + if (OS.GetKeyState (OS.VK_RBUTTON) < 0) event.stateMask |= DWT.BUTTON3; + if (OS.GetKeyState (OS.VK_XBUTTON1) < 0) event.stateMask |= DWT.BUTTON4; + if (OS.GetKeyState (OS.VK_XBUTTON2) < 0) event.stateMask |= DWT.BUTTON5; + switch (type) { + case DWT.MouseDown: + case DWT.MouseDoubleClick: + if (event.button is 1) event.stateMask &= ~DWT.BUTTON1; + if (event.button is 2) event.stateMask &= ~DWT.BUTTON2; + if (event.button is 3) event.stateMask &= ~DWT.BUTTON3; + if (event.button is 4) event.stateMask &= ~DWT.BUTTON4; + if (event.button is 5) event.stateMask &= ~DWT.BUTTON5; + break; + case DWT.MouseUp: + if (event.button is 1) event.stateMask |= DWT.BUTTON1; + if (event.button is 2) event.stateMask |= DWT.BUTTON2; + if (event.button is 3) event.stateMask |= DWT.BUTTON3; + if (event.button is 4) event.stateMask |= DWT.BUTTON4; + if (event.button is 5) event.stateMask |= DWT.BUTTON5; + break; + case DWT.KeyDown: + case DWT.Traverse: + if (event.keyCode is DWT.ALT) event.stateMask &= ~DWT.ALT; + if (event.keyCode is DWT.SHIFT) event.stateMask &= ~DWT.SHIFT; + if (event.keyCode is DWT.CONTROL) event.stateMask &= ~DWT.CONTROL; + break; + case DWT.KeyUp: + if (event.keyCode is DWT.ALT) event.stateMask |= DWT.ALT; + if (event.keyCode is DWT.SHIFT) event.stateMask |= DWT.SHIFT; + if (event.keyCode is DWT.CONTROL) event.stateMask |= DWT.CONTROL; + break; + } + return true; +} + +bool setKeyState (Event event, int type, int wParam, int lParam) { + + /* + * Feature in Windows. When the user presses Ctrl+Backspace + * or Ctrl+Enter, Windows sends a WM_CHAR with Delete (0x7F) + * and '\n' instead of '\b' and '\r'. This is the correct + * platform behavior but is not portable. The fix is to detect + * these cases and convert the character. + */ + switch (display.lastAscii) { + case DWT.DEL: + if (display.lastKey is DWT.BS) display.lastAscii = DWT.BS; + break; + case DWT.LF: + if (display.lastKey is DWT.CR) display.lastAscii = DWT.CR; + break; + } + + /* + * Feature in Windows. When the user presses either the Enter + * key or the numeric keypad Enter key, Windows sends a WM_KEYDOWN + * with wParam=VK_RETURN in both cases. In order to distinguish + * between the keys, the extended key bit is tested. If the bit + * is set, assume that the numeric keypad Enter was pressed. + */ + if (display.lastKey is DWT.CR && display.lastAscii is DWT.CR) { + if ((lParam & 0x1000000) !is 0) display.lastKey = DWT.KEYPAD_CR; + } + + if (display.lastVirtual) { + /* + * Feature in Windows. The virtual key VK_DELETE is not + * treated as both a virtual key and an ASCII key by Windows. + * Therefore, we will not receive a WM_CHAR for this key. + * The fix is to treat VK_DELETE as a special case and map + * the ASCII value explicitly (Delete is 0x7F). + */ + if (display.lastKey is OS.VK_DELETE) display.lastAscii = 0x7F; + + /* + * Feature in Windows. When the user presses Ctrl+Pause, the + * VK_CANCEL key is generated and a WM_CHAR is sent with 0x03, + * possibly to allow an application to look for Ctrl+C and the + * the Break key at the same time. This is unexpected and + * unwanted. The fix is to detect the case and set the character + * to zero. + */ + if (display.lastKey is OS.VK_CANCEL) display.lastAscii = 0x0; + + event.keyCode = Display.translateKey (display.lastKey); + } else { + event.keyCode = display.lastKey; + } + if (display.lastAscii !is 0 || display.lastNull) { + event.character = Display.mbcsToWcs ((char) display.lastAscii); + } + if (event.keyCode is 0 && event.character is 0) { + if (!display.lastNull) return false; + } + return setInputState (event, type); +} + +bool SetWindowPos (int hWnd, int hWndInsertAfter, int X, int Y, int cx, int cy, int uFlags) { + if (OS.IsWinCE) { + /* + * Feature in Windows. On Windows CE, SetWindowPos() always causes + * a WM_SIZE message, even when the new size is the same as the old + * size. The fix is to detect that the size has not changed and set + * SWP_NOSIZE. + */ + if ((uFlags & OS.SWP_NOSIZE) is 0) { + RECT lpRect = new RECT (); + OS.GetWindowRect (hWnd, lpRect); + if (cy is lpRect.bottom - lpRect.top && cx is lpRect.right - lpRect.left) { + /* + * Feature in Windows. On Windows CE, SetWindowPos() when called + * with SWP_DRAWFRAME always causes a WM_SIZE message, even + * when SWP_NOSIZE is set and when the new size is the same as the + * old size. The fix is to clear SWP_DRAWFRAME when the size is + * the same. + */ + uFlags &= ~OS.SWP_DRAWFRAME; + uFlags |= OS.SWP_NOSIZE; + } + } + } + return OS.SetWindowPos (hWnd, hWndInsertAfter, X, Y, cx, cy, uFlags); +} + +bool showMenu (int x, int y) { + Event event = new Event (); + event.x = x; + event.y = y; + sendEvent (DWT.MenuDetect, event); + if (!event.doit) return true; + Menu menu = getMenu (); + if (menu !is null && !menu.isDisposed ()) { + if (x !is event.x || y !is event.y) { + menu.setLocation (event.x, event.y); + } + menu.setVisible (true); + return true; + } + return false; +} + +/** + * Returns a string containing a concise, human-readable + * description of the receiver. + * + * @return a string representation of the receiver + */ +public String toString () { + String string = "*Disposed*"; //$NON-NLS-1$ + if (!isDisposed ()) { + string = "*Wrong Thread*"; //$NON-NLS-1$ + if (isValidThread ()) string = getNameText (); + } + return getName () + " {" + string + "}"; //$NON-NLS-1$ //$NON-NLS-2$ +} + +LRESULT wmCaptureChanged (int hwnd, int wParam, int lParam) { + display.captureChanged = true; + return null; +} + +LRESULT wmChar (int hwnd, int wParam, int lParam) { + /* + * Do not report a lead byte as a key pressed. + */ + if (!OS.IsUnicode && OS.IsDBLocale) { + byte lead = (byte) (wParam & 0xFF); + if (OS.IsDBCSLeadByte (lead)) return null; + } + display.lastAscii = wParam; + display.lastNull = wParam is 0; + if (!sendKeyEvent (DWT.KeyDown, OS.WM_CHAR, wParam, lParam)) { + return LRESULT.ONE; + } + // widget could be disposed at this point + return null; +} + +LRESULT wmContextMenu (int hwnd, int wParam, int lParam) { + if (wParam !is hwnd) return null; + + /* + * Feature in Windows. SHRecognizeGesture() sends an undocumented + * WM_CONTEXTMENU notification when the flag SHRG_NOTIFY_PARENT is + * not set. This causes the context menu to be displayed twice, + * once by the caller of SHRecognizeGesture() and once from this + * method. The fix is to ignore WM_CONTEXTMENU notifications on + * all WinCE platforms. + * + * NOTE: This only happens on WM2003. Previous WinCE versions did + * not support WM_CONTEXTMENU. + */ + if (OS.IsWinCE) return null; + + /* + * Feature in Windows. When the user presses WM_NCRBUTTONUP, + * a WM_CONTEXTMENU message is generated. This happens when + * the user releases the mouse over a scroll bar. Normally, + * window displays the default scrolling menu but applications + * can process WM_CONTEXTMENU to display a different menu. + * Typically, an application does not want to supply a special + * scroll menu. The fix is to look for a WM_CONTEXTMENU that + * originated from a mouse event and display the menu when the + * mouse was released in the client area. + */ + int x = 0, y = 0; + if (lParam !is -1) { + POINT pt = new POINT (); + x = pt.x = (short) (lParam & 0xFFFF); + y = pt.y = (short) (lParam >> 16); + OS.ScreenToClient (hwnd, pt); + RECT rect = new RECT (); + OS.GetClientRect (hwnd, rect); + if (!OS.PtInRect (rect, pt)) return null; + } else { + int pos = OS.GetMessagePos (); + x = (short) (pos & 0xFFFF); + y = (short) (pos >> 16); + } + + /* Show the menu */ + return showMenu (x, y) ? LRESULT.ZERO : null; +} + +LRESULT wmIMEChar (int hwnd, int wParam, int lParam) { + Display display = this.display; + display.lastKey = 0; + display.lastAscii = wParam; + display.lastVirtual = display.lastNull = display.lastDead = false; + if (!sendKeyEvent (DWT.KeyDown, OS.WM_IME_CHAR, wParam, lParam)) { + return LRESULT.ONE; + } + sendKeyEvent (DWT.KeyUp, OS.WM_IME_CHAR, wParam, lParam); + // widget could be disposed at this point + display.lastKey = display.lastAscii = 0; + return LRESULT.ONE; +} + +LRESULT wmKeyDown (int hwnd, int wParam, int lParam) { + + /* Ignore repeating modifier keys by testing key down state */ + switch (wParam) { + case OS.VK_SHIFT: + case OS.VK_MENU: + case OS.VK_CONTROL: + case OS.VK_CAPITAL: + case OS.VK_NUMLOCK: + case OS.VK_SCROLL: + if ((lParam & 0x40000000) !is 0) return null; + } + + /* Clear last key and last ascii because a new key has been typed */ + display.lastAscii = display.lastKey = 0; + display.lastVirtual = display.lastNull = display.lastDead = false; + + /* + * Do not report a lead byte as a key pressed. + */ + if (!OS.IsUnicode && OS.IsDBLocale) { + byte lead = (byte) (wParam & 0xFF); + if (OS.IsDBCSLeadByte (lead)) return null; + } + + /* Map the virtual key */ + /* + * Bug in WinCE. MapVirtualKey() returns incorrect values. + * The fix is to rely on a key mappings table to determine + * whether the key event must be sent now or if a WM_CHAR + * event will follow. The key mappings table maps virtual + * keys to DWT key codes and does not contain mappings for + * Windows virtual keys like VK_A. Virtual keys that are + * both virtual and ASCII are a special case. + */ + int mapKey = 0; + if (OS.IsWinCE) { + switch (wParam) { + case OS.VK_BACK: mapKey = DWT.BS; break; + case OS.VK_RETURN: mapKey = DWT.CR; break; + case OS.VK_DELETE: mapKey = DWT.DEL; break; + case OS.VK_ESCAPE: mapKey = DWT.ESC; break; + case OS.VK_TAB: mapKey = DWT.TAB; break; + } + } else { + mapKey = OS.MapVirtualKey (wParam, 2); + } + + /* + * Bug in Windows 95 and NT. When the user types an accent key such + * as ^ to get an accented character on a German keyboard, the accent + * key should be ignored and the next key that the user types is the + * accented key. The fix is to detect the accent key stroke (called + * a dead key) by testing the high bit of the value returned by + * MapVirtualKey(). A further problem is that the high bit on + * Windows NT is bit 32 while the high bit on Windows 95 is bit 16. + * They should both be bit 32. + * + * When the user types an accent key that does not correspond to a + * virtual key, MapVirtualKey() won't set the high bit to indicate + * a dead key. This happens when an accent key, such as '^' is the + * result of a modifier such as Shift key and MapVirtualKey() always + * returns the unshifted key. The fix is to peek for a WM_DEADCHAR + * and avoid issuing the event. + */ + if (OS.IsWinNT) { + if ((mapKey & 0x80000000) !is 0) return null; + } else { + if ((mapKey & 0x8000) !is 0) return null; + } + MSG msg = new MSG (); + int flags = OS.PM_NOREMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; + if (OS.PeekMessage (msg, hwnd, OS.WM_DEADCHAR, OS.WM_DEADCHAR, flags)) { + display.lastDead = true; + display.lastVirtual = mapKey is 0; + display.lastKey = display.lastVirtual ? wParam : mapKey; + return null; + } + + /* + * Bug in Windows. Somehow, the widget is becoming disposed after + * calling PeekMessage(). In rare circumstances, it seems that + * PeekMessage() can allow DWT listeners to run that might contain + * application code that disposes the widget. It is not exactly + * clear how this can happen. PeekMessage() is only looking for + * WM_DEADCHAR. It is not dispatching any message that it finds + * or removing any message from the queue. Cross-thread messages + * are disabled. The fix is to check for a disposed widget and + * return without calling the window proc. + */ + if (isDisposed ()) return LRESULT.ONE; + + /* + * If we are going to get a WM_CHAR, ensure that last key has + * the correct character value for the key down and key up + * events. It is not sufficient to ignore the WM_KEYDOWN + * (when we know we are going to get a WM_CHAR) and compute + * the key in WM_CHAR because there is not enough information + * by the time we get the WM_CHAR. For example, when the user + * types Ctrl+Shift+6 on a US keyboard, we get a WM_CHAR with + * wParam=30. When the user types Ctrl+Shift+6 on a German + * keyboard, we also get a WM_CHAR with wParam=30. On the US + * keyboard Shift+6 is ^, on the German keyboard Shift+6 is &. + * There is no way to map wParam=30 in WM_CHAR to the correct + * value. Also, on international keyboards, the control key + * may be down when the user has not entered a control character. + * + * NOTE: On Windows 98, keypad keys are virtual despite the + * fact that a WM_CHAR is issued. On Windows 2000 and XP, + * they are not virtual. Therefore it is necessary to force + * numeric keypad keys to be virtual. + */ + display.lastVirtual = mapKey is 0 || display.numpadKey (wParam) !is 0; + if (display.lastVirtual) { + display.lastKey = wParam; + /* + * Feature in Windows. The virtual key VK_DELETE is not + * treated as both a virtual key and an ASCII key by Windows. + * Therefore, we will not receive a WM_CHAR for this key. + * The fix is to treat VK_DELETE as a special case and map + * the ASCII value explicitly (Delete is 0x7F). + */ + if (display.lastKey is OS.VK_DELETE) display.lastAscii = 0x7F; + + /* + * It is possible to get a WM_CHAR for a virtual key when + * Num Lock is on. If the user types Home while Num Lock + * is down, a WM_CHAR is issued with WPARM=55 (for the + * character 7). If we are going to get a WM_CHAR we need + * to ensure that the last key has the correct value. Note + * that Ctrl+Home does not issue a WM_CHAR when Num Lock is + * down. + */ + if (OS.VK_NUMPAD0 <= display.lastKey && display.lastKey <= OS.VK_DIVIDE) { + /* + * Feature in Windows. Calling to ToAscii() or ToUnicode(), clears + * the accented state such that the next WM_CHAR loses the accent. + * This makes is critical that the accent key is detected. Also, + * these functions clear the character that is entered using the + * special Windows keypad sequence when NumLock is down (ie. typing + * ALT+0231 should gives 'c' with a cedilla when NumLock is down). + */ + if (display.asciiKey (display.lastKey) !is 0) return null; + display.lastAscii = display.numpadKey (display.lastKey); + } + } else { + /* + * Convert LastKey to lower case because Windows non-virtual + * keys that are also ASCII keys, such as like VK_A, are have + * upper case values in WM_KEYDOWN despite the fact that the + * Shift was not pressed. + */ + display.lastKey = OS.CharLower ((short) mapKey); + + /* + * Feature in Windows. The virtual key VK_CANCEL is treated + * as both a virtual key and ASCII key by Windows. This + * means that a WM_CHAR with WPARAM=3 will be issued for + * this key. In order to distinguish between this key and + * Ctrl+C, mark the key as virtual. + */ + if (wParam is OS.VK_CANCEL) display.lastVirtual = true; + + /* + * Some key combinations map to Windows ASCII keys depending + * on the keyboard. For example, Ctrl+Alt+Q maps to @ on a + * German keyboard. If the current key combination is special, + * the correct character is placed in wParam for processing in + * WM_CHAR. If this is the case, issue the key down event from + * inside WM_CHAR. + */ + int asciiKey = display.asciiKey (wParam); + if (asciiKey !is 0) { + /* + * When the user types Ctrl+Space, ToAscii () maps this to + * Space. Normally, ToAscii () maps a key to a different + * key if both a WM_KEYDOWN and a WM_CHAR will be issued. + * To avoid the extra DWT.KeyDown, look for a space and + * issue the event from WM_CHAR. + */ + if (asciiKey is ' ') return null; + if (asciiKey !is wParam) return null; + /* + * Feature in Windows. The virtual key VK_CANCEL is treated + * as both a virtual key and ASCII key by Windows. This + * means that a WM_CHAR with WPARAM=3 will be issued for + * this key. To avoid the extra DWT.KeyDown, look for + * VK_CANCEL and issue the event from WM_CHAR. + */ + if (wParam is OS.VK_CANCEL) return null; + } + + /* + * If the control key is not down at this point, then + * the key that was pressed was an accent key or a regular + * key such as 'A' or Shift+A. In that case, issue the + * key event from WM_CHAR. + */ + if (OS.GetKeyState (OS.VK_CONTROL) >= 0) return null; + + /* + * Get the shifted state or convert to lower case if necessary. + * If the user types Ctrl+A, LastAscii should be 'a', not 'A'. + * If the user types Ctrl+Shift+A, LastAscii should be 'A'. + * If the user types Ctrl+Shift+6, the value of LastAscii will + * depend on the international keyboard. + */ + if (OS.GetKeyState (OS.VK_SHIFT) < 0) { + display.lastAscii = display.shiftedKey (wParam); + if (display.lastAscii is 0) display.lastAscii = mapKey; + } else { + display.lastAscii = OS.CharLower ((short) mapKey); + } + + /* Note that Ctrl+'@' is ASCII NUL and is delivered in WM_CHAR */ + if (display.lastAscii is '@') return null; + display.lastAscii = display.controlKey (display.lastAscii); + } + if (!sendKeyEvent (DWT.KeyDown, OS.WM_KEYDOWN, wParam, lParam)) { + return LRESULT.ONE; + } + // widget could be disposed at this point + return null; +} + +LRESULT wmKeyUp (int hwnd, int wParam, int lParam) { + Display display = this.display; + + /* Check for hardware keys */ + if (OS.IsWinCE) { + if (OS.VK_APP1 <= wParam && wParam <= OS.VK_APP6) { + display.lastKey = display.lastAscii = 0; + display.lastVirtual = display.lastNull = display.lastDead = false; + Event event = new Event (); + event.detail = wParam - OS.VK_APP1 + 1; + /* Check the bit 30 to get the key state */ + int type = (lParam & 0x40000000) !is 0 ? DWT.HardKeyUp : DWT.HardKeyDown; + if (setInputState (event, type)) sendEvent (type, event); + // widget could be disposed at this point + return null; + } + } + + /* + * If the key up is not hooked, reset last key + * and last ascii in case the key down is hooked. + */ + if (!hooks (DWT.KeyUp) && !display.filters (DWT.KeyUp)) { + display.lastKey = display.lastAscii = 0; + display.lastVirtual = display.lastNull = display.lastDead = false; + return null; + } + + /* Map the virtual key. */ + /* + * Bug in WinCE. MapVirtualKey() returns incorrect values. + * The fix is to rely on a key mappings table to determine + * whether the key event must be sent now or if a WM_CHAR + * event will follow. The key mappings table maps virtual + * keys to DWT key codes and does not contain mappings for + * Windows virtual keys like VK_A. Virtual keys that are + * both virtual and ASCII are a special case. + */ + int mapKey = 0; + if (OS.IsWinCE) { + switch (wParam) { + case OS.VK_BACK: mapKey = DWT.BS; break; + case OS.VK_RETURN: mapKey = DWT.CR; break; + case OS.VK_DELETE: mapKey = DWT.DEL; break; + case OS.VK_ESCAPE: mapKey = DWT.ESC; break; + case OS.VK_TAB: mapKey = DWT.TAB; break; + } + } else { + mapKey = OS.MapVirtualKey (wParam, 2); + } + + /* + * Bug in Windows 95 and NT. When the user types an accent key such + * as ^ to get an accented character on a German keyboard, the accent + * key should be ignored and the next key that the user types is the + * accented key. The fix is to detect the accent key stroke (called + * a dead key) by testing the high bit of the value returned by + * MapVirtualKey (). A further problem is that the high bit on + * Windows NT is bit 32 while the high bit on Windows 95 is bit 16. + * They should both be bit 32. + */ + if (OS.IsWinNT) { + if ((mapKey & 0x80000000) !is 0) return null; + } else { + if ((mapKey & 0x8000) !is 0) return null; + } + if (display.lastDead) return null; + + /* + * NOTE: On Windows 98, keypad keys are virtual despite the + * fact that a WM_CHAR is issued. On Windows 2000 and XP, + * they are not virtual. Therefore it is necessary to force + * numeric keypad keys to be virtual. + */ + display.lastVirtual = mapKey is 0 || display.numpadKey (wParam) !is 0; + if (display.lastVirtual) { + display.lastKey = wParam; + } else { + /* + * Feature in Windows. The virtual key VK_CANCEL is treated + * as both a virtual key and ASCII key by Windows. This + * means that a WM_CHAR with WPARAM=3 will be issued for + * this key. In order to distinguish between this key and + * Ctrl+C, mark the key as virtual. + */ + if (wParam is OS.VK_CANCEL) display.lastVirtual = true; + if (display.lastKey is 0) { + display.lastAscii = 0; + display.lastNull = display.lastDead = false; + return null; + } + } + LRESULT result = null; + if (!sendKeyEvent (DWT.KeyUp, OS.WM_KEYUP, wParam, lParam)) { + result = LRESULT.ONE; + } + // widget could be disposed at this point + display.lastKey = display.lastAscii = 0; + display.lastVirtual = display.lastNull = display.lastDead = false; + return result; +} + +LRESULT wmKillFocus (int hwnd, int wParam, int lParam) { + int code = callWindowProc (hwnd, OS.WM_KILLFOCUS, wParam, lParam); + sendFocusEvent (DWT.FocusOut); + // widget could be disposed at this point + + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the focus + * or deactivate events. If this happens, end the + * processing of the Windows message by returning + * zero as the result of the window proc. + */ + if (isDisposed ()) return LRESULT.ZERO; + if (code is 0) return LRESULT.ZERO; + return new LRESULT (code); +} + +LRESULT wmLButtonDblClk (int hwnd, int wParam, int lParam) { + /* + * Feature in Windows. Windows sends the following + * messages when the user double clicks the mouse: + * + * WM_LBUTTONDOWN - mouse down + * WM_LBUTTONUP - mouse up + * WM_LBUTTONDBLCLK - double click + * WM_LBUTTONUP - mouse up + * + * Applications that expect matching mouse down/up + * pairs will not see the second mouse down. The + * fix is to send a mouse down event. + */ + LRESULT result = null; + Display display = this.display; + display.captureChanged = false; + sendMouseEvent (DWT.MouseDown, 1, hwnd, OS.WM_LBUTTONDOWN, wParam, lParam); + if (sendMouseEvent (DWT.MouseDoubleClick, 1, hwnd, OS.WM_LBUTTONDBLCLK, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_LBUTTONDBLCLK, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is hwnd) OS.SetCapture (hwnd); + } + return result; +} + +LRESULT wmLButtonDown (int hwnd, int wParam, int lParam) { + Display display = this.display; + LRESULT result = null; + int x = (short) (lParam & 0xFFFF); + int y = (short) (lParam >> 16); + bool [] consume = null, detect = null; + bool dragging = false, mouseDown = true; + int count = display.getClickCount (DWT.MouseDown, 1, hwnd, lParam); + if (count is 1 && (state & DRAG_DETECT) !is 0 && hooks (DWT.DragDetect)) { + if (!OS.IsWinCE) { + /* + * Feature in Windows. It's possible that the drag + * operation will not be started while the mouse is + * down, meaning that the mouse should be captured. + * This can happen when the user types the ESC key + * to cancel the drag. The fix is to query the state + * of the mouse and capture the mouse accordingly. + */ + detect = new bool [1]; + consume = new bool [1]; + dragging = dragDetect (hwnd, x, y, true, detect, consume); + if (isDisposed ()) return LRESULT.ZERO; + mouseDown = OS.GetKeyState (OS.VK_LBUTTON) < 0; + } + } + display.captureChanged = false; + bool dispatch = sendMouseEvent (DWT.MouseDown, 1, count, 0, false, hwnd, OS.WM_LBUTTONDOWN, wParam, lParam); + if (dispatch && (consume is null || !consume [0])) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_LBUTTONDOWN, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (OS.IsPPC) { + /* + * Note: On WinCE PPC, only attempt to recognize the gesture for + * a context menu when the control contains a valid menu or there + * are listeners for the MenuDetect event. + */ + Menu menu = getMenu (); + bool hasMenu = menu !is null && !menu.isDisposed (); + if (hasMenu || hooks (DWT.MenuDetect)) { + SHRGINFO shrg = new SHRGINFO (); + shrg.cbSize = SHRGINFO.sizeof; + shrg.hwndClient = hwnd; + shrg.ptDown_x = x; + shrg.ptDown_y = y; + shrg.dwFlags = OS.SHRG_RETURNCMD; + int type = OS.SHRecognizeGesture (shrg); + if (type is OS.GN_CONTEXTMENU) showMenu (x, y); + } + } + if (mouseDown) { + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is hwnd) OS.SetCapture (hwnd); + } + } + if (dragging) { + sendDragEvent (1, x, y); + } else { + if (detect !is null && detect [0]) { + /* + * Feature in Windows. DragDetect() captures the mouse + * and tracks its movement until the user releases the + * left mouse button, presses the ESC key, or moves the + * mouse outside the drag rectangle. If the user moves + * the mouse outside of the drag rectangle, DragDetect() + * returns true and a drag and drop operation can be + * started. When the left mouse button is released or + * the ESC key is pressed, these events are consumed by + * DragDetect() so that application code that matches + * mouse down/up pairs or looks for the ESC key will not + * function properly. The fix is to send the missing + * events when the drag has not started. + * + * NOTE: For now, don't send a fake WM_KEYDOWN/WM_KEYUP + * events for the ESC key. This would require computing + * wParam (the key) and lParam (the repeat count, scan code, + * extended-key flag, context code, previous key-state flag, + * and transition-state flag) which is non-trivial. + */ + if (OS.GetKeyState (OS.VK_ESCAPE) >= 0) { + OS.SendMessage (hwnd, OS.WM_LBUTTONUP, wParam, lParam); + } + } + } + return result; +} + +LRESULT wmLButtonUp (int hwnd, int wParam, int lParam) { + Display display = this.display; + LRESULT result = null; + if (sendMouseEvent (DWT.MouseUp, 1, hwnd, OS.WM_LBUTTONUP, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_LBUTTONUP, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + /* + * Bug in Windows. On some machines that do not have XBUTTONs, + * the MK_XBUTTON1 and OS.MK_XBUTTON2 bits are sometimes set, + * causing mouse capture to become stuck. The fix is to test + * for the extra buttons only when they exist. + */ + int mask = OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON; + if (display.xMouse) mask |= OS.MK_XBUTTON1 | OS.MK_XBUTTON2; + if (((wParam & 0xFFFF) & mask) is 0) { + if (OS.GetCapture () is hwnd) OS.ReleaseCapture (); + } + return result; +} + +LRESULT wmMButtonDblClk (int hwnd, int wParam, int lParam) { + /* + * Feature in Windows. Windows sends the following + * messages when the user double clicks the mouse: + * + * WM_MBUTTONDOWN - mouse down + * WM_MBUTTONUP - mouse up + * WM_MLBUTTONDBLCLK - double click + * WM_MBUTTONUP - mouse up + * + * Applications that expect matching mouse down/up + * pairs will not see the second mouse down. The + * fix is to send a mouse down event. + */ + LRESULT result = null; + Display display = this.display; + display.captureChanged = false; + sendMouseEvent (DWT.MouseDown, 2, hwnd, OS.WM_MBUTTONDOWN, wParam, lParam); + if (sendMouseEvent (DWT.MouseDoubleClick, 2, hwnd, OS.WM_MBUTTONDBLCLK, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_MBUTTONDBLCLK, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is hwnd) OS.SetCapture (hwnd); + } + return result; +} + +LRESULT wmMButtonDown (int hwnd, int wParam, int lParam) { + LRESULT result = null; + Display display = this.display; + display.captureChanged = false; + if (sendMouseEvent (DWT.MouseDown, 2, hwnd, OS.WM_MBUTTONDOWN, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_MBUTTONDOWN, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is hwnd) OS.SetCapture (hwnd); + } + return result; +} + +LRESULT wmMButtonUp (int hwnd, int wParam, int lParam) { + Display display = this.display; + LRESULT result = null; + if (sendMouseEvent (DWT.MouseUp, 2, hwnd, OS.WM_MBUTTONUP, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_MBUTTONUP, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + /* + * Bug in Windows. On some machines that do not have XBUTTONs, + * the MK_XBUTTON1 and OS.MK_XBUTTON2 bits are sometimes set, + * causing mouse capture to become stuck. The fix is to test + * for the extra buttons only when they exist. + */ + int mask = OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON; + if (display.xMouse) mask |= OS.MK_XBUTTON1 | OS.MK_XBUTTON2; + if (((wParam & 0xFFFF) & mask) is 0) { + if (OS.GetCapture () is hwnd) OS.ReleaseCapture (); + } + return result; +} + +LRESULT wmMouseHover (int hwnd, int wParam, int lParam) { + if (!sendMouseEvent (DWT.MouseHover, 0, hwnd, OS.WM_MOUSEHOVER, wParam, lParam)) { + return LRESULT.ZERO; + } + return null; +} + +LRESULT wmMouseLeave (int hwnd, int wParam, int lParam) { + if (!hooks (DWT.MouseExit) && !filters (DWT.MouseExit)) return null; + int pos = OS.GetMessagePos (); + POINT pt = new POINT (); + pt.x = (short) (pos & 0xFFFF); + pt.y = (short) (pos >> 16); + OS.ScreenToClient (hwnd, pt); + lParam = (pt.x & 0xFFFF) | ((pt.y << 16) & 0xFFFF0000); + if (!sendMouseEvent (DWT.MouseExit, 0, hwnd, OS.WM_MOUSELEAVE, wParam, lParam)) { + return LRESULT.ZERO; + } + return null; +} + +LRESULT wmMouseMove (int hwnd, int wParam, int lParam) { + LRESULT result = null; + Display display = this.display; + int pos = OS.GetMessagePos (); + if (pos !is display.lastMouse || display.captureChanged) { + if (!OS.IsWinCE) { + bool trackMouse = (state & TRACK_MOUSE) !is 0; + bool mouseEnter = hooks (DWT.MouseEnter) || display.filters (DWT.MouseEnter); + bool mouseExit = hooks (DWT.MouseExit) || display.filters (DWT.MouseExit); + bool mouseHover = hooks (DWT.MouseHover) || display.filters (DWT.MouseHover); + if (trackMouse || mouseEnter || mouseExit || mouseHover) { + TRACKMOUSEEVENT lpEventTrack = new TRACKMOUSEEVENT (); + lpEventTrack.cbSize = TRACKMOUSEEVENT.sizeof; + lpEventTrack.dwFlags = OS.TME_QUERY; + lpEventTrack.hwndTrack = hwnd; + OS.TrackMouseEvent (lpEventTrack); + if (lpEventTrack.dwFlags is 0) { + lpEventTrack.dwFlags = OS.TME_LEAVE | OS.TME_HOVER; + lpEventTrack.hwndTrack = hwnd; + OS.TrackMouseEvent (lpEventTrack); + if (mouseEnter) { + /* + * Force all outstanding WM_MOUSELEAVE messages to be dispatched before + * issuing a mouse enter. This causes mouse exit events to be processed + * before mouse enter events. Note that WM_MOUSELEAVE is posted to the + * event queue by TrackMouseEvent(). + */ + MSG msg = new MSG (); + int flags = OS.PM_REMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE; + while (OS.PeekMessage (msg, 0, OS.WM_MOUSELEAVE, OS.WM_MOUSELEAVE, flags)) { + OS.TranslateMessage (msg); + OS.DispatchMessage (msg); + } + sendMouseEvent (DWT.MouseEnter, 0, hwnd, OS.WM_MOUSEMOVE, wParam, lParam); + } + } else { + lpEventTrack.dwFlags = OS.TME_HOVER; + OS.TrackMouseEvent (lpEventTrack); + } + } + } + if (pos !is display.lastMouse) { + display.lastMouse = pos; + if (!sendMouseEvent (DWT.MouseMove, 0, hwnd, OS.WM_MOUSEMOVE, wParam, lParam)) { + result = LRESULT.ZERO; + } + } + } + display.captureChanged = false; + return result; +} + +LRESULT wmMouseWheel (int hwnd, int wParam, int lParam) { + if (!hooks (DWT.MouseWheel) && !filters (DWT.MouseWheel)) return null; + int delta = wParam >> 16; + int [] value = new int [1]; + int count, detail; + OS.SystemParametersInfo (OS.SPI_GETWHEELSCROLLLINES, 0, value, 0); + if (value [0] is OS.WHEEL_PAGESCROLL) { + detail = DWT.SCROLL_PAGE; + count = delta / OS.WHEEL_DELTA; + } else { + detail = DWT.SCROLL_LINE; + count = value [0] * delta / OS.WHEEL_DELTA; + } + POINT pt = new POINT (); + pt.x = (short) (lParam & 0xFFFF); + pt.y = (short) (lParam >> 16); + OS.ScreenToClient (hwnd, pt); + lParam = (pt.x & 0xFFFF) | ((pt.y << 16) & 0xFFFF0000); + if (!sendMouseEvent (DWT.MouseWheel, 0, count, detail, true, hwnd, OS.WM_MOUSEWHEEL, wParam, lParam)) { + return LRESULT.ZERO; + } + return null; +} + +LRESULT wmPaint (int hwnd, int wParam, int lParam) { + + /* Exit early - don't draw the background */ + if (!hooks (DWT.Paint) && !filters (DWT.Paint)) { + return null; + } + + /* Issue a paint event */ + int result = 0; + if (OS.IsWinCE) { + RECT rect = new RECT (); + OS.GetUpdateRect (hwnd, rect, false); + result = callWindowProc (hwnd, OS.WM_PAINT, wParam, lParam); + /* + * Bug in Windows. When InvalidateRgn(), InvalidateRect() + * or RedrawWindow() with RDW_INVALIDATE is called from + * within WM_PAINT to invalidate a region for a further + * BeginPaint(), the caret is not properly erased causing + * pixel corruption. The fix is to hide and show the + * caret. + */ + OS.HideCaret (hwnd); + OS.InvalidateRect (hwnd, rect, false); + OS.ShowCaret (hwnd); + PAINTSTRUCT ps = new PAINTSTRUCT (); + GCData data = new GCData (); + data.ps = ps; + data.hwnd = hwnd; + GC gc = new_GC (data); + if (gc !is null) { + int width = ps.right - ps.left; + int height = ps.bottom - ps.top; + if (width !is 0 && height !is 0) { + Event event = new Event (); + event.gc = gc; + event.x = ps.left; + event.y = ps.top; + event.width = width; + event.height = height; + sendEvent (DWT.Paint, event); + // widget could be disposed at this point + event.gc = null; + } + gc.dispose (); + } + } else { + int rgn = OS.CreateRectRgn (0, 0, 0, 0); + OS.GetUpdateRgn (hwnd, rgn, false); + result = callWindowProc (hwnd, OS.WM_PAINT, wParam, lParam); + GCData data = new GCData (); + data.hwnd = hwnd; + GC gc = new_GC (data); + if (gc !is null) { + OS.HideCaret (hwnd); + RECT rect = new RECT(); + OS.GetRgnBox (rgn, rect); + int width = rect.right - rect.left; + int height = rect.bottom - rect.top; + if (width !is 0 && height !is 0) { + int hDC = gc.handle; + OS.SelectClipRgn (hDC, rgn); + OS.SetMetaRgn (hDC); + Event event = new Event (); + event.gc = gc; + event.x = rect.left; + event.y = rect.top; + event.width = width; + event.height = height; + sendEvent (DWT.Paint, event); + // widget could be disposed at this point + event.gc = null; + } + gc.dispose (); + OS.ShowCaret (hwnd); + } + OS.DeleteObject (rgn); + } + if (result is 0) return LRESULT.ZERO; + return new LRESULT (result); +} + +LRESULT wmPrint (int hwnd, int wParam, int lParam) { + /* + * Bug in Windows. When WM_PRINT is used to print the contents + * of a control that has WS_EX_CLIENTEDGE, the old 3D border is + * drawn instead of the theme border. The fix is to call the + * default window proc and then draw the theme border on top. + */ + if ((lParam & OS.PRF_NONCLIENT) !is 0) { + if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { + int bits = OS.GetWindowLong (hwnd, OS.GWL_EXSTYLE); + if ((bits & OS.WS_EX_CLIENTEDGE) !is 0) { + int code = callWindowProc (hwnd, OS.WM_PRINT, wParam, lParam); + RECT rect = new RECT (); + OS.GetWindowRect (hwnd, rect); + rect.right -= rect.left; + rect.bottom -= rect.top; + rect.left = rect.top = 0; + int border = OS.GetSystemMetrics (OS.SM_CXEDGE); + OS.ExcludeClipRect (wParam, border, border, rect.right - border, rect.bottom - border); + OS.DrawThemeBackground (display.hEditTheme (), wParam, OS.EP_EDITTEXT, OS.ETS_NORMAL, rect, null); + return new LRESULT (code); + } + } + } + return null; +} + +LRESULT wmRButtonDblClk (int hwnd, int wParam, int lParam) { + /* + * Feature in Windows. Windows sends the following + * messages when the user double clicks the mouse: + * + * WM_RBUTTONDOWN - mouse down + * WM_RBUTTONUP - mouse up + * WM_RBUTTONDBLCLK - double click + * WM_LBUTTONUP - mouse up + * + * Applications that expect matching mouse down/up + * pairs will not see the second mouse down. The + * fix is to send a mouse down event. + */ + LRESULT result = null; + Display display = this.display; + display.captureChanged = false; + sendMouseEvent (DWT.MouseDown, 3, hwnd, OS.WM_RBUTTONDOWN, wParam, lParam); + if (sendMouseEvent (DWT.MouseDoubleClick, 3, hwnd, OS.WM_RBUTTONDBLCLK, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_RBUTTONDBLCLK, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is hwnd) OS.SetCapture (hwnd); + } + return result; +} + +LRESULT wmRButtonDown (int hwnd, int wParam, int lParam) { + LRESULT result = null; + Display display = this.display; + display.captureChanged = false; + if (sendMouseEvent (DWT.MouseDown, 3, hwnd, OS.WM_RBUTTONDOWN, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_RBUTTONDOWN, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is hwnd) OS.SetCapture (hwnd); + } + return result; +} + +LRESULT wmRButtonUp (int hwnd, int wParam, int lParam) { + Display display = this.display; + LRESULT result = null; + if (sendMouseEvent (DWT.MouseUp, 3, hwnd, OS.WM_RBUTTONUP, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_RBUTTONUP, wParam, lParam)); + } else { + /* Call the DefWindowProc() to support WM_CONTEXTMENU */ + OS.DefWindowProc (hwnd, OS.WM_RBUTTONUP, wParam, lParam); + result = LRESULT.ZERO; + } + /* + * Bug in Windows. On some machines that do not have XBUTTONs, + * the MK_XBUTTON1 and OS.MK_XBUTTON2 bits are sometimes set, + * causing mouse capture to become stuck. The fix is to test + * for the extra buttons only when they exist. + */ + int mask = OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON; + if (display.xMouse) mask |= OS.MK_XBUTTON1 | OS.MK_XBUTTON2; + if (((wParam & 0xFFFF) & mask) is 0) { + if (OS.GetCapture () is hwnd) OS.ReleaseCapture (); + } + return result; +} + +LRESULT wmSetFocus (int hwnd, int wParam, int lParam) { + int code = callWindowProc (hwnd, OS.WM_SETFOCUS, wParam, lParam); + sendFocusEvent (DWT.FocusIn); + // widget could be disposed at this point + + /* + * It is possible (but unlikely), that application + * code could have disposed the widget in the focus + * or activate events. If this happens, end the + * processing of the Windows message by returning + * zero as the result of the window proc. + */ + if (isDisposed ()) return LRESULT.ZERO; + if (code is 0) return LRESULT.ZERO; + return new LRESULT (code); +} + +LRESULT wmSysChar (int hwnd, int wParam, int lParam) { + Display display = this.display; + display.lastAscii = wParam; + display.lastNull = wParam is 0; + + /* Do not issue a key down if a menu bar mnemonic was invoked */ + if (!hooks (DWT.KeyDown) && !display.filters (DWT.KeyDown)) { + return null; + } + + /* Call the window proc to determine whether it is a system key or mnemonic */ + bool oldKeyHit = display.mnemonicKeyHit; + display.mnemonicKeyHit = true; + int result = callWindowProc (hwnd, OS.WM_SYSCHAR, wParam, lParam); + bool consumed = false; + if (!display.mnemonicKeyHit) { + consumed = !sendKeyEvent (DWT.KeyDown, OS.WM_SYSCHAR, wParam, lParam); + // widget could be disposed at this point + } + consumed |= display.mnemonicKeyHit; + display.mnemonicKeyHit = oldKeyHit; + return consumed ? LRESULT.ONE : new LRESULT (result); +} + +LRESULT wmSysKeyDown (int hwnd, int wParam, int lParam) { + /* + * Feature in Windows. When WM_SYSKEYDOWN is sent, + * the user pressed ALT+<key> or F10 to get to the + * menu bar. In order to issue events for F10 but + * ignore other key presses when the ALT is not down, + * make sure that either F10 was pressed or that ALT + * is pressed. + */ + if (wParam !is OS.VK_F10) { + /* Make sure WM_SYSKEYDOWN was sent by ALT-<aKey>. */ + if ((lParam & 0x20000000) is 0) return null; + } + + /* Ignore well known system keys */ + switch (wParam) { + case OS.VK_F4: { + int hwndShell = hwnd; + while (OS.GetParent (hwndShell) !is 0) { + if (OS.GetWindow (hwndShell, OS.GW_OWNER) !is 0) break; + hwndShell = OS.GetParent (hwndShell); + } + int bits = OS.GetWindowLong (hwndShell, OS.GWL_STYLE); + if ((bits & OS.WS_SYSMENU) !is 0) return null; + } + } + + /* Ignore repeating modifier keys by testing key down state */ + switch (wParam) { + case OS.VK_SHIFT: + case OS.VK_MENU: + case OS.VK_CONTROL: + case OS.VK_CAPITAL: + case OS.VK_NUMLOCK: + case OS.VK_SCROLL: + if ((lParam & 0x40000000) !is 0) return null; + } + + /* Clear last key and last ascii because a new key has been typed */ + display.lastAscii = display.lastKey = 0; + display.lastVirtual = display.lastNull = display.lastDead = false; + + /* If are going to get a WM_SYSCHAR, ignore this message. */ + /* + * Bug in WinCE. MapVirtualKey() returns incorrect values. + * The fix is to rely on a key mappings table to determine + * whether the key event must be sent now or if a WM_CHAR + * event will follow. The key mappings table maps virtual + * keys to DWT key codes and does not contain mappings for + * Windows virtual keys like VK_A. Virtual keys that are + * both virtual and ASCII are a special case. + */ + int mapKey = 0; + if (OS.IsWinCE) { + switch (wParam) { + case OS.VK_BACK: mapKey = DWT.BS; break; + case OS.VK_RETURN: mapKey = DWT.CR; break; + case OS.VK_DELETE: mapKey = DWT.DEL; break; + case OS.VK_ESCAPE: mapKey = DWT.ESC; break; + case OS.VK_TAB: mapKey = DWT.TAB; break; + } + } else { + mapKey = OS.MapVirtualKey (wParam, 2); + } + display.lastVirtual = mapKey is 0 || display.numpadKey (wParam) !is 0; + if (display.lastVirtual) { + display.lastKey = wParam; + /* + * Feature in Windows. The virtual key VK_DELETE is not + * treated as both a virtual key and an ASCII key by Windows. + * Therefore, we will not receive a WM_SYSCHAR for this key. + * The fix is to treat VK_DELETE as a special case and map + * the ASCII value explicitly (Delete is 0x7F). + */ + if (display.lastKey is OS.VK_DELETE) display.lastAscii = 0x7F; + + /* When a keypad key is typed, a WM_SYSCHAR is not issued */ + if (OS.VK_NUMPAD0 <= display.lastKey && display.lastKey <= OS.VK_DIVIDE) { + /* + * A WM_SYSCHAR will be issued for '*', '+', '-', '.' and '/' + * on the numeric keypad. Avoid issuing the key event twice + * by checking for these keys. Note that calling to ToAscii() + * or ToUnicode(), clear the character that is entered using + * the special Windows keypad sequence when NumLock is down + * (ie. typing ALT+0231 should gives 'c' with a cedilla when + * NumLock is down). Do not call either of these from here. + */ + switch (display.lastKey) { + case OS.VK_MULTIPLY: + case OS.VK_ADD: + case OS.VK_SUBTRACT: + case OS.VK_DECIMAL: + case OS.VK_DIVIDE: return null; + } + display.lastAscii = display.numpadKey (display.lastKey); + } + } else { + /* + * Convert LastKey to lower case because Windows non-virtual + * keys that are also ASCII keys, such as like VK_A, are have + * upper case values in WM_SYSKEYDOWN despite the fact that the + * Shift was not pressed. + */ + display.lastKey = OS.CharLower ((short) mapKey); + + /* + * Feature in Windows 98. MapVirtualKey() indicates that + * a WM_SYSCHAR message will occur for Alt+Enter but + * this message never happens. The fix is to issue the + * event from WM_SYSKEYDOWN and map VK_RETURN to '\r'. + */ + if (OS.IsWinNT) return null; + if (wParam !is OS.VK_RETURN) return null; + display.lastAscii = '\r'; + } + + if (!sendKeyEvent (DWT.KeyDown, OS.WM_SYSKEYDOWN, wParam, lParam)) { + return LRESULT.ONE; + } + // widget could be disposed at this point + return null; +} + +LRESULT wmSysKeyUp (int hwnd, int wParam, int lParam) { + return wmKeyUp (hwnd, wParam, lParam); +} + +LRESULT wmXButtonDblClk (int hwnd, int wParam, int lParam) { + /* + * Feature in Windows. Windows sends the following + * messages when the user double clicks the mouse: + * + * WM_XBUTTONDOWN - mouse down + * WM_XBUTTONUP - mouse up + * WM_XLBUTTONDBLCLK - double click + * WM_XBUTTONUP - mouse up + * + * Applications that expect matching mouse down/up + * pairs will not see the second mouse down. The + * fix is to send a mouse down event. + */ + LRESULT result = null; + Display display = this.display; + display.captureChanged = false; + int button = (wParam >> 16 is OS.XBUTTON1) ? 4 : 5; + sendMouseEvent (DWT.MouseDown, button, hwnd, OS.WM_XBUTTONDOWN, wParam, lParam); + if (sendMouseEvent (DWT.MouseDoubleClick, button, hwnd, OS.WM_XBUTTONDBLCLK, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_XBUTTONDBLCLK, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is hwnd) OS.SetCapture (hwnd); + } + return result; +} + +LRESULT wmXButtonDown (int hwnd, int wParam, int lParam) { + LRESULT result = null; + Display display = this.display; + display.captureChanged = false; + display.xMouse = true; + int button = (wParam >> 16 is OS.XBUTTON1) ? 4 : 5; + if (sendMouseEvent (DWT.MouseDown, button, hwnd, OS.WM_XBUTTONDOWN, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_XBUTTONDOWN, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + if (!display.captureChanged && !isDisposed ()) { + if (OS.GetCapture () !is hwnd) OS.SetCapture (hwnd); + } + return result; +} + +LRESULT wmXButtonUp (int hwnd, int wParam, int lParam) { + Display display = this.display; + LRESULT result = null; + int button = (wParam >> 16 is OS.XBUTTON1) ? 4 : 5; + if (sendMouseEvent (DWT.MouseUp, button, hwnd, OS.WM_XBUTTONUP, wParam, lParam)) { + result = new LRESULT (callWindowProc (hwnd, OS.WM_XBUTTONUP, wParam, lParam)); + } else { + result = LRESULT.ZERO; + } + /* + * Bug in Windows. On some machines that do not have XBUTTONs, + * the MK_XBUTTON1 and OS.MK_XBUTTON2 bits are sometimes set, + * causing mouse capture to become stuck. The fix is to test + * for the extra buttons only when they exist. + */ + int mask = OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON; + if (display.xMouse) mask |= OS.MK_XBUTTON1 | OS.MK_XBUTTON2; + if (((wParam & 0xFFFF) & mask) is 0) { + if (OS.GetCapture () is hwnd) OS.ReleaseCapture (); + } + return result; +} +} +++/ \ No newline at end of file