projects/dwt-mac: dwt/widgets/TabFolder.d comparison

comparison dwt/widgets/TabFolder.d @ 0:380af2bdd8e5

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author	Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date	Sat, 09 Aug 2008 17:00:02 +0200
parents
children	649b8e223d5a

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--1:000000000000
+:380af2bdd8e5
+/*******************************************************************************
+* 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.dwthelper.utils;
+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.cocoa.NSFont;
+import dwt.internal.cocoa.NSPoint;
+import dwt.internal.cocoa.NSRect;
+import dwt.internal.cocoa.NSSize;
+import dwt.internal.cocoa.NSTabView;
+import dwt.internal.cocoa.NSTabViewItem;
+import dwt.internal.cocoa.OS;
+import dwt.internal.cocoa.SWTTabView;
+/**
+* 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;
+int itemCount;
+/**
+* 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);
+}
+static int checkStyle (int style) {
+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) {
+Point size = super.computeSize (wHint, hHint, changed);
+if (wHint is DWT.DEFAULT && items.length > 0) {
+NSSize mimSize = ((NSTabView)view).minimumSize();
+Rectangle trim = computeTrim (0, 0, (int)mimSize.width, 0);
+size.x = Math.max (trim.width, size.x);
+}
+return size;
+}
+public Rectangle computeTrim (int x, int y, int width, int height) {
+checkWidget ();
+//  CGRect oldBounds = new CGRect (), bounds = oldBounds;
+//  OS.HIViewGetFrame (handle, oldBounds);
+//  int MIN_SIZE = 100;
+//  if (oldBounds.width < MIN_SIZE || oldBounds.height < MIN_SIZE) {
+//      OS.HIViewSetDrawingEnabled (handle, false);
+//      bounds = new CGRect ();
+//      bounds.width = bounds.height = 100;
+//      OS.HIViewSetFrame (handle, bounds);
+//  }
+//  Rect client = new Rect ();
+//  OS.GetTabContentRect (handle, client);
+//  if (oldBounds.width < MIN_SIZE || oldBounds.height < MIN_SIZE) {
+//      OS.HIViewSetFrame (handle, oldBounds);
+//      OS.HIViewSetDrawingEnabled (handle, drawCount is 0);
+//  }
+//  x -= client.left;
+//  y -= client.top;
+//  width += (int) bounds.width - (client.right - client.left);
+//  height += (int) bounds.height - (client.bottom - client.top);
+//  Rect inset = getInset ();
+//  x -= inset.left;
+//  y -= inset.top;
+//  width += inset.left + inset.right;
+//  height += inset.top + inset.bottom;
+//  return new Rectangle (-client.left, -client.top, width, height);
+return super.computeTrim(x, y, width, height);
+}
+void createHandle () {
+SWTTabView widget = (SWTTabView)new SWTTabView().alloc();
+widget.initWithFrame (new NSRect());
+widget.setTag(jniRef);
+widget.setDelegate(widget);
+if ((style & DWT.BOTTOM) !is 0) {
+widget.setTabViewType(OS.NSBottomTabsBezelBorder);
+}
+view = widget;
+parent.contentView().addSubview_(view);
+}
+void createItem (TabItem item, int index) {
+int count = itemCount;
+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;
+}
+System.arraycopy (items, index, items, index + 1, count - index);
+items [index] = item;
+itemCount++;
+NSTabViewItem nsItem = (NSTabViewItem)new NSTabViewItem().alloc().init();
+item.nsItem = nsItem;
+((NSTabView)view).insertTabViewItem(nsItem, index);
+}
+void createWidget () {
+super.createWidget ();
+items = new TabItem [4];
+}
+void destroyItem (TabItem item) {
+int count = itemCount;
+int index = 0;
+while (index < count) {
+if (items [index] is item) break;
+index++;
+}
+if (index is count) return;
+--count;
+System.arraycopy (items, index + 1, items, index, count - index);
+items [count] = null;
+if (count is 0) {
+items = new TabItem [4];
+}
+itemCount = count;
+((NSTabView)view).removeTabViewItem(item.nsItem);
+}
+public Rectangle getClientArea () {
+checkWidget ();
+NSRect rect = ((NSTabView)view).contentRect();
+int x = Math.max (0, (int)rect.x);
+int y = Math.max (0, (int)rect.y);
+int width = Math.max (0, (int)rect.width);
+int height = Math.max (0, (int)rect.height);
+return new Rectangle (x, y, 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 = itemCount;
+if (!(0 <= index && index < count)) error (DWT.ERROR_INVALID_RANGE);
+return items [index];
+}
+public TabItem getItem (Point point) {
+checkWidget ();
+if (point is null) error (DWT.ERROR_NULL_ARGUMENT);
+NSPoint nsPoint = new NSPoint ();
+nsPoint.x = point.x;
+nsPoint.y = point.y;
+NSTabView tabView = (NSTabView) view;
+NSTabViewItem tabViewItem = tabView.tabViewItemAtPoint (nsPoint);
+for (int i = 0; i < itemCount; i++) {
+NSTabViewItem item = items[i].nsItem;
+if (item.isEqual (tabViewItem)) {
+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 itemCount;
+}
+/**
+* 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 = itemCount;
+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 = getSelectionIndex ();
+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 ();
+NSTabViewItem selected =  ((NSTabView)view).selectedTabViewItem();
+if (selected is null) return -1;
+for (int i = 0; i < itemCount; i++) {
+if (items[i].nsItem.id is selected.id) 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 (TabItem item) {
+checkWidget ();
+if (item is null) error (DWT.ERROR_NULL_ARGUMENT);
+int count = itemCount;
+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 = itemCount;
+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);
+}
+void releaseChildren (bool destroy) {
+if (items !is null) {
+for (int i=0; i<items.length; i++) {
+TabItem item = items [i];
+if (item !is null && !item.isDisposed ()) {
+item.release (false);
+}
+}
+items = null;
+}
+super.releaseChildren (destroy);
+}
+void removeControl (Control control) {
+super.removeControl (control);
+int count = itemCount;
+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);
+}
+int setBounds (int x, int y, int width, int height, bool move, bool resize) {
+int result = super.setBounds(x, y, width, height, move, resize);
+if ((result & RESIZED) !is 0) {
+int index = getSelectionIndex ();
+if (index !is -1) {
+TabItem item = items [index];
+Control control = item.control;
+if (control !is null && !control.isDisposed ()) {
+control.setBounds (getClientArea ());
+}
+}
+}
+return result;
+}
+void setFont (NSFont font) {
+((NSTabView)view).setFont(font);
+}
+/**
+* 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, false);
+} else {
+for (int i=items.length - 1; i>=0; --i) {
+int index = indexOf (items [i]);
+if (index !is -1) setSelection (index, false, 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.
+* 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 = itemCount;
+if (!(0 <= index && index < count)) return;
+setSelection (index, false, false);
+}
+void setSelection (int index, bool notify, bool force) {
+if (index >= itemCount) return;
+int currentIndex = getSelectionIndex ();
+if (!force && currentIndex is index) return;
+if (currentIndex !is -1) {
+TabItem item = items [currentIndex];
+if (item !is null) {
+Control control = item.control;
+if (control !is null && !control.isDisposed ()) {
+control.setVisible (false);
+}
+}
+}
+((NSTabView)view).selectTabViewItemAtIndex(index);
+index = getSelectionIndex();
+if (index !is -1) {
+TabItem item = items [index];
+if (item !is null) {
+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);
+}
+}
+}
+}
+bool traversePage (bool next) {
+int count = getItemCount ();
+if (count is 0) 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, false);
+return index is getSelectionIndex ();
+}
+void willSelectTabViewItem(int tabView, int tabViewItem) {
+if (tabViewItem is 0) return;
+for (int i = 0; i < itemCount; i++) {
+TabItem item = items [i];
+if (item.nsItem.id is tabViewItem) {
+int currentIndex = getSelectionIndex ();
+if (currentIndex !is -1) {
+TabItem selected = items [currentIndex];
+if (selected !is null) {
+Control control = selected.control;
+if (control !is null && !control.isDisposed ()) {
+control.setVisible (false);
+}
+}
+}
+Control control = item.control;
+if (control !is null && !control.isDisposed ()) {
+control.setBounds (getClientArea ());
+control.setVisible (true);
+}
+Event event = new Event ();
+event.item = item;
+sendEvent (DWT.Selection, event);
+}
+}
+}
+}

Mercurial > projects > dwt-mac

comparison dwt/widgets/TabFolder.d @ 0:380af2bdd8e5