Mercurial > projects > dwt-mac
view dwt/widgets/TabItem.d @ 3:649b8e223d5a
fix extends
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 27 Aug 2008 13:48:25 +0200 |
parents | 380af2bdd8e5 |
children | 1a8b3cb347e0 |
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/******************************************************************************* * 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.dwthelper.utils; import dwt.DWT; import dwt.DWTException; import dwt.graphics.Image; import dwt.graphics.Rectangle; import dwt.internal.cocoa.NSPoint; import dwt.internal.cocoa.NSSize; import dwt.internal.cocoa.NSString; import dwt.internal.cocoa.NSTabViewItem; import dwt.internal.cocoa.NSValue; import dwt.internal.cocoa.NSWindow; import dwt.internal.cocoa.OS; /** * 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 : Item { TabFolder parent; Control control; String toolTipText; NSTabViewItem nsItem; /** * 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); } protected void checkSubclass () { if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); } 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> * * @since 3.4 */ public Rectangle getBounds() { checkWidget(); Rectangle result = new Rectangle (0, 0, 0, 0); if (nsItem.respondsToSelector (OS.sel_accessibilityAttributeValue_1)) { int posValue = OS.objc_msgSend (nsItem.id, OS.sel_accessibilityAttributeValue_1, OS.NSAccessibilityPositionAttribute ()); int sizeValue = OS.objc_msgSend (nsItem.id, OS.sel_accessibilityAttributeValue_1, OS.NSAccessibilitySizeAttribute ()); NSValue val = new NSValue (posValue); NSPoint pt = val.pointValue (); NSWindow window = parent.view.window (); pt.y = window.screen ().frame ().height - pt.y; pt = parent.view.convertPoint_fromView_ (pt, null); pt = window.convertScreenToBase (pt); result.x = (int) pt.x; result.y = (int) pt.y; val = new NSValue (sizeValue); NSSize size = val.sizeValue (); result.width = (int) size.width; result.height = (int) size.height; } return result; } /** * 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 (); if (nsItem !is null) nsItem.release(); nsItem = null; 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) { // nsItem.setView(control.topView ()); 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); } /** * 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); int index = parent.indexOf (this); if (index is -1) return; super.setText (string); char [] chars = new char [string.length ()]; string.getChars (0, chars.length, chars, 0); int length = fixMnemonic (chars); NSString str = NSString.stringWithCharacters (chars, length); nsItem.setLabel (str); } /** * 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; } void update () { setText (text); setImage (image); setToolTipText (toolTipText); } }