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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Control.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Control.java | 3621 |
1 files changed, 0 insertions, 3621 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Control.java b/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Control.java deleted file mode 100644 index 1cbda102e8..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Control.java +++ /dev/null @@ -1,3621 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 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 - *******************************************************************************/ -package org.eclipse.swt.widgets; - -import org.eclipse.swt.internal.wpf.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.*; -import org.eclipse.swt.events.*; -import org.eclipse.swt.accessibility.*; - -//TEMPORARY CODE -import org.eclipse.swt.effects.*; - -/** - * 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 SWT implementation. - * </p> - * - * @see <a href="http://www.eclipse.org/swt/snippets/#control">Control snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ - -public abstract class Control extends Widget implements Drawable { - Cursor cursor; - Menu menu; - String toolTipText; - Object layoutData; - Accessible accessible; - Image backgroundImage; - Region region; -// int drawCount; - int foreground, background; - int x, y, width, height; - Font font; - Composite parent; - -/** - * 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>SWT</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>SWT</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 SWTException <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 SWT#BORDER - * @see SWT#LEFT_TO_RIGHT - * @see SWT#RIGHT_TO_LEFT - * @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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Resize,typedListener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.FocusIn,typedListener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.KeyUp,typedListener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.MouseDown,typedListener); - addListener (SWT.MouseUp,typedListener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.MouseEnter,typedListener); - addListener (SWT.MouseExit,typedListener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Traverse,typedListener); -} - -void addWidget () { - parent.addChild (this); -} - -int borderHandle () { - return handle; -} - -void checkBackground () { - Shell shell = getShell (); - if (this == shell) return; - state &= ~PARENT_BACKGROUND; - Composite composite = parent; - do { - int mode = composite.backgroundMode; - if (mode != 0) { - if (mode == SWT.INHERIT_DEFAULT) { - Control control = this; - do { - if ((control.state & THEME_BACKGROUND) == 0) { - return; - } - control = control.parent; - } while (control != composite); - } - state |= PARENT_BACKGROUND; - return; - } - if (composite == shell) break; - composite = composite.parent; - } while (true); -} - -void checkBorder () { - if (getBorderWidth () == 0) style &= ~SWT.BORDER; -} - -void checkBuffered () { - style |= SWT.DOUBLE_BUFFERED; -} - -/** - * 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>SWT.DEFAULT</code> is passed for the hint. - * </p> - * - * @param wHint the width hint (can be <code>SWT.DEFAULT</code>) - * @param hHint the height hint (can be <code>SWT.DEFAULT</code>) - * @return the preferred size of the control - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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(boolean) - * @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>SWT.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>SWT.DEFAULT</code>) - * @param hHint the height hint (can be <code>SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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(boolean) - * @see "computeTrim, getClientArea for controls that implement them" - */ -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - return computeSize (handle, wHint, hHint, changed); -} - -Point computeSize (int handle, int wHint, int hHint, boolean changed) { - int width = wHint, height = hHint; - if (wHint == SWT.DEFAULT) width = 0x7FFFFFFF; - if (hHint == SWT.DEFAULT) height = 0x7FFFFFFF; - width = Math.max (0, width); - height = Math.max (0, height); - int availSize = OS.gcnew_Size ((double)width, (double)height); - if (availSize == 0) error (SWT.ERROR_NO_HANDLES); - double requestWidth = OS.FrameworkElement_Width (handle); - if (requestWidth >= 0) { - int widthDP = OS.FrameworkElement_WidthProperty (); - OS.DependencyObject_ClearValue (handle, widthDP); - OS.GCHandle_Free (widthDP); - } - double requestHeight = OS.FrameworkElement_Height (handle); - if (requestHeight >= 0) { - int heightDP = OS.FrameworkElement_HeightProperty (); - OS.DependencyObject_ClearValue (handle, heightDP); - OS.GCHandle_Free (heightDP); - } - OS.UIElement_Measure (handle, availSize); - OS.GCHandle_Free (availSize); - int size = OS.UIElement_DesiredSize (handle); - width = (int) OS.Size_Width (size); - height = (int) OS.Size_Height (size); - OS.GCHandle_Free (size); - if (requestWidth >= 0) OS.FrameworkElement_Width (handle, requestWidth); - if (requestHeight >= 0) OS.FrameworkElement_Height (handle, requestHeight); - if (wHint != SWT.DEFAULT) width = wHint; - if (hHint != SWT.DEFAULT) height = hHint; - return new Point (width, height); -} - -Control computeTabGroup () { - if (isTabGroup ()) return this; - return parent.computeTabGroup (); -} - -Control computeTabRoot () { - Control [] tabList = parent._getTabList (); - if (tabList != null) { - int index = 0; - while (index < tabList.length) { - if (tabList [index] == this) break; - index++; - } - if (index == 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 createWidget () { - state |= DRAG_DETECT; - checkOrientation (parent); - super.createWidget (); - checkBackground (); - checkBuffered (); - setClipping (); - if (defaultBackground () != 0 || (state & PARENT_BACKGROUND) != 0) { - setBackground (); - } -} - -/** - * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED - */ -public void setAlpha(int alpha) { - checkWidget (); - OS.UIElement_Opacity (handle, (alpha & 0xFF) / (double)0xFF); -} - -void setClipping () { - //accept default clipping -} - -int defaultBackground () { - return 0; -} - -Font defaultFont () { - return display.getSystemFont (); -} - -int defaultForeground () { - return display.getSystemColor (SWT.COLOR_BLACK).handle; -} - -void deregister () { - display.removeWidget (handle); -} - -void destroyWidget () { - parent.removeChild (this); - releaseHandle (); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean dragDetect (Event event) { - checkWidget (); - if (event == null) error (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean dragDetect (MouseEvent event) { - checkWidget (); - if (event == null) error (SWT.ERROR_NULL_ARGUMENT); - return dragDetect (event.button, event.count, event.stateMask, event.x, event.y); -} - -boolean dragDetect (int button, int count, int stateMask, int x, int y) { - if (button != 1 || count != 1) return false; - boolean dragging = dragDetect (x, y, false); - if (dragging) return sendDragEvent (button, stateMask, x, y); - return false; -} - -void dragHandler () { - int frame = display.dragDetectFrame = OS.gcnew_DispatcherFrame (); - OS.Dispatcher_PushFrame (frame); - OS.GCHandle_Free (frame); - OS.GCHandle_Free (display.dragRect); - if (display.dragMouseDown != 0) OS.GCHandle_Free (display.dragMouseDown); - display.dragMouseDown = display.dragDetectFrame = display.dragRect = 0; -} - -boolean dragDetect (double x, double y, boolean post) { - display.dragging = false; - double minH = OS.SystemParameters_MinimumHorizontalDragDistance (); - double minV = OS.SystemParameters_MinimumVerticalDragDistance (); - display.dragRect = OS.gcnew_Rect(x - minH, y - minV, minH * 2, minV * 2); - if (post) { - int handler = OS.gcnew_NoArgsDelegate (jniRef, "dragHandler"); - int operation = OS.Dispatcher_BeginInvoke (display.dispatcher, OS.DispatcherPriority_Send, handler); - OS.GCHandle_Free (operation); - OS.GCHandle_Free (handler); - } else { - dragHandler (); - } - return display.dragging; -} - -void enableWidget (boolean enabled) { - OS.UIElement_IsEnabled (handle, enabled); -} - -boolean drawGripper (int x, int y, int width, int height, boolean vertical) { - return false; -} - -Control findBackgroundControl () { - if (background != 0 || backgroundImage != null) return this; - return (state & PARENT_BACKGROUND) != 0 ? parent.findBackgroundControl () : null; -} - -Control findThemeControl () { - return background == 0 && backgroundImage == null ? parent.findThemeControl () : null; -} - -Control findImageControl () { - Control control = findBackgroundControl (); - return control != null && control.backgroundImage != null ? control : null; -} - -Menu [] findMenus (Control control) { - if (menu != null && this != 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) != '&') index++; - if (++index >= length) return '\0'; - if (string.charAt (index) != '&') return string.charAt (index); - index++; - } while (index < length); - return '\0'; -} - -void fixFocus (Control focusControl) { - Shell shell = getShell (); - Control control = this; - while (control != shell && (control = control.parent) != null) { - if (control.setFocus ()) return; - } - shell.setSavedFocus (focusControl); - OS.UIElement_Focus (shell.shellHandle); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean forceFocus () { - checkWidget (); -// if (display.focusEvent == SWT.FocusOut) return false; - Decorations shell = menuShell (); - shell.setSavedFocus (this); - if (!isEnabled () || !isVisible () || !isActive ()) return false; - if (isFocusControl ()) return true; - shell.setSavedFocus (null); - OS.UIElement_Focus (handle); - if (isDisposed ()) return false; - shell.setSavedFocus (this); - return isFocusControl (); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) accessible = new_Accessible (this); - return accessible; -} - -/** - * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED - */ -public int getAlpha () { - checkWidget (); - return (int) (0XFF * OS.UIElement_Opacity (handle)); -} - -/** - * Returns the receiver's background color. - * <p> - * Note: This operation is a hint and may be overridden by the platform. - * For example, on some versions of Windows the background of a TabFolder, - * is a gradient rather than a solid color. - * </p> - * @return the background color - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 == null) control = this; - return Color.wpf_new (display, control.getBackgroundColor ()); -} - -/** - * Returns the receiver's background image. - * - * @return the background image - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) control = this; - return control.backgroundImage; -} - -int getBackgroundColor () { - int color = background; - if (color == 0) color = defaultBackground (); - if (color == 0) color = OS.SystemColors_ControlColor;//TODO - return color; -} - -/** - * Returns the receiver's border width. - * - * @return the border width - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 (); - //FIXME - return 2; -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 topHandle = topHandle (); - Point location = parent.getLocation (this); - int width = (int) OS.FrameworkElement_Width (topHandle); - int height = (int) OS.FrameworkElement_Height (topHandle); - return new Rectangle (location.x, location.y, width, height); -} - -String getClipboardText () { - String string = ""; - int text = OS.Clipboard_GetText (); - if (text != 0) { - string = createJavaString (text); - OS.GCHandle_Free(text); - } - 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> - * - * @return the receiver's cursor or <code>null</code> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean getDragDetect () { - checkWidget (); - return (state & DRAG_DETECT) != 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean getEnabled () { - checkWidget (); - return (state & DISABLED) == 0; -} - -/** - * Returns the font that the receiver will use to paint textual information. - * - * @return the receiver's font - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 (); - return font != null ? font : defaultFont (); -} - -/** - * Returns the foreground color that the receiver will use to draw. - * - * @return the receiver's foreground color - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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.wpf_new (display, getForegroundColor ()); -} - -int getForegroundColor () { - return foreground != 0 ? foreground : defaultForeground (); -} - -/** - * Returns layout data which is associated with the receiver. - * - * @return the receiver's layout data - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 parent.getLocation (this); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 (); - //TODO - return display.getPrimaryMonitor (); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 != shell) { - count++; - control = control.parent; - } - control = this; - Control [] result = new Control [count]; - while (control != shell) { - result [--count] = control; - control = control.parent; - } - return result; -} - -/** - * Returns the region that defines the shape of the control, - * or null if the control has the default shape. - * - * @return the region that defines the shape of the shell (or null) - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 Region getRegion () { - checkWidget (); - return region; -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 topHandle = topHandle (); - int width = (int) OS.FrameworkElement_Width (topHandle); - int height = (int) OS.FrameworkElement_Height (topHandle); - 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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; -} - -/** - * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED - */ -public Transform getTransform () { - int transform = OS.FrameworkElement_RenderTransform (handle); - int matrix = OS.MatrixTransform_Matrix (transform); - OS.GCHandle_Free (transform); - float m11 = (float) OS.Matrix_M11 (matrix); - float m12 = (float) OS.Matrix_M12 (matrix); - float m21 = (float) OS.Matrix_M21 (matrix); - float m22 = (float) OS.Matrix_M22 (matrix); - float dx = (float) OS.Matrix_OffsetX (matrix); - float dy = (float) OS.Matrix_OffsetY (matrix); - OS.GCHandle_Free (matrix); - //TODO - leaking - return new Transform (display, m11, m12, m21, m22, dx, dy); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public boolean getVisible () { - checkWidget (); - return OS.UIElement_Visibility (topHandle ()) == OS.Visibility_Visible; -} - -Control getWidgetControl () { - return this; -} - -void hookEvents () { - super.hookEvents (); - int handler = OS.gcnew_KeyEventHandler (jniRef, "HandlePreviewKeyDown"); - OS.UIElement_PreviewKeyDown (handle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_KeyEventHandler (jniRef, "HandlePreviewKeyUp"); - OS.UIElement_PreviewKeyUp (handle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_TextCompositionEventHandler (jniRef, "HandlePreviewTextInput"); - OS.UIElement_PreviewTextInput (handle, handler); - OS.GCHandle_Free (handler); - - int topHandle = topHandle (); - handler = OS.gcnew_MouseButtonEventHandler (jniRef, "HandlePreviewMouseDown"); - OS.UIElement_PreviewMouseDown (topHandle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_MouseButtonEventHandler (jniRef, "HandlePreviewMouseUp"); - OS.UIElement_PreviewMouseUp (topHandle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_MouseEventHandler (jniRef, "HandleMouseEnter"); - OS.UIElement_MouseEnter (topHandle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_MouseEventHandler (jniRef, "HandleMouseLeave"); - OS.UIElement_MouseLeave (topHandle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_MouseEventHandler (jniRef, "HandlePreviewMouseMove"); - OS.UIElement_PreviewMouseMove (topHandle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_MouseWheelEventHandler (jniRef, "HandlePreviewMouseWheel"); - OS.UIElement_PreviewMouseWheel (topHandle, handler); - OS.GCHandle_Free (handler); - - handler = OS.gcnew_KeyboardFocusChangedEventHandler (jniRef, "HandlePreviewGotKeyboardFocus"); - OS.UIElement_PreviewGotKeyboardFocus (handle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_KeyboardFocusChangedEventHandler (jniRef, "HandleLostKeyboardFocus"); - OS.UIElement_LostKeyboardFocus (handle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_ContextMenuEventHandler (jniRef, "HandleContextMenuOpening"); - OS.FrameworkElement_ContextMenuOpening (handle, handler); - OS.GCHandle_Free (handler); - - handler = OS.gcnew_SizeChangedEventHandler(jniRef, "HandleSizeChanged"); - OS.FrameworkElement_SizeChanged (topHandle, handler); - OS.GCHandle_Free (handler); - - int typeid = OS.Canvas_typeid(); - handler = OS.gcnew_EventHandler(jniRef, "HandleTopChanged"); - int property = OS.Canvas_TopProperty(); - int dpd = OS.DependencyPropertyDescriptor_FromProperty(property, typeid); - OS.DependencyPropertyDescriptor_AddValueChanged(dpd, topHandle, handler); - OS.GCHandle_Free(handler); - OS.GCHandle_Free(property); - OS.GCHandle_Free(dpd); - handler = OS.gcnew_EventHandler(jniRef, "HandleLeftChanged"); - property = OS.Canvas_LeftProperty(); - dpd = OS.DependencyPropertyDescriptor_FromProperty(property, typeid); - OS.DependencyPropertyDescriptor_AddValueChanged(dpd, topHandle, handler); - OS.GCHandle_Free(handler); - OS.GCHandle_Free(property); - OS.GCHandle_Free(dpd); - OS.GCHandle_Free(typeid); -} - -void HandleLeftChanged (int sender, int e) { - int topHandle = topHandle(); - int x = (int)OS.Canvas_GetLeft(topHandle); - int y = (int)OS.Canvas_GetTop(topHandle); - if (x != this.x || y != this.y) { - this.x = x; - this.y = y; - sendEvent(SWT.Move); - } -} - -void HandleTopChanged (int sender, int e) { - int topHandle = topHandle(); - int x = (int)OS.Canvas_GetLeft(topHandle); - int y = (int)OS.Canvas_GetTop(topHandle); - if (x != this.x || y != this.y) { - this.x = x; - this.y = y; - sendEvent(SWT.Move); - } -} - -void HandleContextMenuOpening (int sender, int e) { - if (!checkEvent (e)) return; - int mouse = OS.Mouse_GetPosition (handle); - int x = (int) OS.Point_X (mouse); - int y = (int) OS.Point_Y (mouse); - OS.GCHandle_Free (mouse); - Point point = display.map (this, null, x, y); - showMenu (point.x, point.y); - OS.RoutedEventArgs_Handled (e, true); -} - -void HandlePreviewGotKeyboardFocus (int sender, int e) { - if (!checkEvent (e)) return; - if (OS.UIElement_IsKeyboardFocusWithin (handle)) return; - sendFocusEvent (SWT.FocusIn); -} - -void HandleLostKeyboardFocus (int sender, int e) { - if (!checkEvent (e)) return; - if (OS.UIElement_IsKeyboardFocusWithin (handle)) return; - sendFocusEvent (SWT.FocusOut); -} - -void HandlePreviewKeyDown (int sender, int e) { - if (!checkEvent (e)) return; - - if (display.dragDetectFrame != 0) { - if (OS.KeyEventArgs_Key (e) == OS.Key_Escape) { - OS.DispatcherFrame_Continue (display.dragDetectFrame, false); - } - } - - /* Let OS handle mnemonics for now */ -// if (translateMnemonic (e)) { -// OS.RoutedEventArgs_Handled (e, true); -// return; -// } - if (translateTraversal (e)) { - OS.RoutedEventArgs_Handled (e, true); - return; - } - sendKeyEvent (SWT.KeyDown, e, false); -} - -void HandlePreviewKeyUp (int sender, int e) { - if (!checkEvent (e)) return; - sendKeyEvent (SWT.KeyUp, e, false); -} - -void HandlePreviewMouseDown (int sender, int e) { - if (!checkEvent (e)) return; - if ((state & CANVAS) != 0) { - OS.UIElement_CaptureMouse (handle); - } - - if (OS.MouseButtonEventArgs_ChangedButton (e) == 0 && OS.MouseButtonEventArgs_ClickCount (e) == 1) { - if ((state & DRAG_DETECT) != 0 && hooks (SWT.DragDetect)) { - int point = OS.MouseEventArgs_GetPosition (e, handle); - double x = OS.Point_X (point); - double y = OS.Point_Y (point); - OS.GCHandle_Free (point); - display.dragMouseDown = OS.GCHandle_Alloc (e); - dragDetect (x, y, true); - } - } - - sendMouseEvent (SWT.MouseDown, e, false); -} - -void HandlePreviewMouseUp (int sender, int e) { - if (!checkEvent (e)) return; - if ((state & CANVAS) != 0) { - OS.UIElement_ReleaseMouseCapture (handle); - } - if (display.dragDetectFrame != 0) { - OS.DispatcherFrame_Continue (display.dragDetectFrame, false); - } - sendMouseEvent (SWT.MouseUp, e, false); -} - -void HandleMouseEnter (int sender, int e) { - if (!checkEvent (e)) return; - Control control = display.getCursorControl (); - if (control != this) return; - - Control lastMouseControl = display.mouseControl; - if (lastMouseControl != null && !lastMouseControl.isDisposed() && lastMouseControl != this) { - if (OS.Visual_IsDescendantOf (topHandle (), lastMouseControl.topHandle())) { - lastMouseControl.sendMouseEvent (SWT.MouseExit, e, false); - } - } - display.mouseControl = this; - sendMouseEvent (SWT.MouseEnter, e, false); -} - -void HandleMouseLeave (int sender, int e) { - if (!checkEvent (e)) return; - if (this != display.mouseControl) return; - sendMouseEvent (SWT.MouseExit, e, false); -} - -void HandlePreviewMouseMove (int sender, int e) { - if (!checkEvent (e)) return; - if (display.dragDetectFrame != 0) { - OS.RoutedEventArgs_Handled (e, true); - int point = OS.MouseEventArgs_GetPosition (e, handle); - boolean contains = OS.Rect_Contains (display.dragRect, point); - OS.GCHandle_Free (point); - if (!contains) { - display.dragging = true; - OS.DispatcherFrame_Continue (display.dragDetectFrame, false); - if (display.dragMouseDown != 0) { - sendDragEvent (display.dragMouseDown); - OS.GCHandle_Free (display.dragMouseDown); - display.dragMouseDown = 0; - } - } - return; - } - Control lastMouseControl = display.mouseControl; - if (lastMouseControl != null && !lastMouseControl.isDisposed() && lastMouseControl != this) { - if (OS.Visual_IsAncestorOf (topHandle (), lastMouseControl.topHandle ())) { - sendMouseEvent (SWT.MouseEnter, e, false); - } - } - display.mouseControl = this; - sendMouseEvent (SWT.MouseMove, e, false); -} - -void HandlePreviewMouseWheel (int sender, int e) { - if (!checkEvent (e)) return; - sendMouseEvent (SWT.MouseWheel, e, false); -} - -void HandlePreviewTextInput(int sender, int e) { - if (!checkEvent (e)) return; - sendKeyEvent (SWT.KeyDown, e, true); -} - -void HandleSizeChanged (int sender, int e) { - if (!checkEvent (e)) return; - int topHandle = topHandle(); - int width = (int) OS.FrameworkElement_ActualWidth (topHandle); - int height = (int) OS.FrameworkElement_ActualHeight (topHandle); - if (this.width != width || this.height != height) { - this.width = width; - this.height = height; - resized (); - } -} - -void resized () { - sendEvent (SWT.Resize); -} - -boolean hasFocus () { -// return OS.UIElement_IsFocused (handle); -// return OS.UIElement_IsKeyboardFocused (handle); - return display.getFocusControl() == this; -} - -/** - * 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 SWT. 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 drawingContext = data != null ? data.drawingContext : 0; - int visual = handle; - double width = OS.FrameworkElement_ActualWidth (handle); - double height = OS.FrameworkElement_ActualHeight (handle); - int rect = OS.gcnew_Rect (0, 0, width, height); - int clip = OS.gcnew_RectangleGeometry (rect); - if (drawingContext != 0) { - OS.DrawingContext_PushClip(drawingContext, clip); - } else { - if ((state & CANVAS) != 0) { - visual = OS.SWTCanvas_Visual (handle); - if (visual == 0) { - visual = OS.gcnew_DrawingVisual(); - if (visual == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.SWTCanvas_Visual (handle, visual); - } - } else { - visual = OS.gcnew_DrawingVisual(); - if (visual == 0) SWT.error(SWT.ERROR_NO_HANDLES); - } - OS.ContainerVisual_Clip (visual, clip); - int dc = OS.DrawingVisual_RenderOpen (visual); - if (dc == 0) SWT.error (SWT.ERROR_NO_HANDLES); - drawingContext = dc; - int drawing = OS.DrawingVisual_Drawing(visual); - OS.DrawingContext_DrawDrawing(drawingContext, drawing); - OS.GCHandle_Free(drawing); - } - OS.GCHandle_Free (rect); - OS.GCHandle_Free (clip); - if (data != null) { - int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; - if ((data.style & mask) == 0) { - data.style |= style & (mask | SWT.MIRRORED); - } - data.device = display; - data.foreground = getForegroundColor (); - Control control = findBackgroundControl (); - if (control == null) control = this; - data.background = control.getBackgroundColor (); - data.font = font != null ? font : defaultFont (); - data.visual = visual; - } - return drawingContext; -} - -/** - * 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 SWT. 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 dc, GCData data) { - checkWidget (); - if (data != null && data.drawingContext == 0) { - OS.DrawingContext_Close (dc); - OS.GCHandle_Free (dc); - OS.GCHandle_Free (data.visual); - } -} - -boolean isActive () { -// Shell dialogShell = display.getModalDialogShell (); -// if (dialogShell != null && dialogShell != getShell ()) { -// return false; -// } - Shell shell = null; - Shell [] modalShells = display.modalShells; - if (modalShells != null) { - int bits = SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL; - int index = modalShells.length; - while (--index >= 0) { - Shell modal = modalShells [index]; - if (modal != null) { - if ((modal.style & bits) != 0) { - Control control = this; - while (control != null) { - if (control == modal) break; - control = control.parent; - } - if (control != modal) return false; - break; - } - if ((modal.style & SWT.PRIMARY_MODAL) != 0) { - if (shell == null) shell = getShell (); - if (modal.parent == shell) return false; - } - } - } - } - if (shell == 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public boolean isFocusControl () { - checkWidget (); - return hasFocus (); -} - -boolean isFocusAncestor (Control control) { - while (control != null && control != this && !(control instanceof Shell)) { - control = control.parent; - } - return control == 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public boolean isReparentable () { - checkWidget (); - return false; -} - -boolean isShowing () { - /* - * This is not complete. Need to check if the - * widget is obscurred by a parent or sibling. - */ - if (!isVisible ()) return false; - Control control = this; - while (control != null) { - Point size = control.getSize (); - if (size.x == 0 || size.y == 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 != OS.NULLREGION; -} - -boolean isTabGroup () { - Control [] tabList = parent._getTabList (); - if (tabList != null) { - for (int i=0; i<tabList.length; i++) { - if (tabList [i] == this) return true; - } - } - int code = traversalCode (0, 0); - if ((code & (SWT.TRAVERSE_ARROW_PREVIOUS | SWT.TRAVERSE_ARROW_NEXT)) != 0) return false; - return (code & (SWT.TRAVERSE_TAB_PREVIOUS | SWT.TRAVERSE_TAB_NEXT)) != 0; -} - -boolean isTabItem () { - Control [] tabList = parent._getTabList (); - if (tabList != null) { - for (int i=0; i<tabList.length; i++) { - if (tabList [i] == this) return false; - } - } - int code = traversalCode (0, 0); - return (code & (SWT.TRAVERSE_ARROW_PREVIOUS | SWT.TRAVERSE_ARROW_NEXT)) != 0; -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean isVisible () { - checkWidget (); - int topHandle = topHandle (); - updateLayout (topHandle); - return OS.UIElement_IsVisible (topHandle); -} - -void markLayout (boolean changed, boolean all) { - /* Do nothing */ -} - -Decorations menuShell () { - return parent.menuShell (); -} - -boolean mnemonicHit (char key) { - return false; -} - -boolean 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 (); - if (parent == null) return; //TODO - if (control != null) { - if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); - if (parent != control.parent) return; - } - int index; - int parentHandle = parent.parentingHandle (); - int children = OS.Panel_Children (parentHandle); - if (control != null) { - index = OS.UIElementCollection_IndexOf (children, control.topHandle ()); - } else { - index = OS.UIElementCollection_Count (children) - 1; - } - int topHandle = topHandle (); - if (OS.UIElementCollection_IndexOf (children, topHandle) < index) { - OS.UIElementCollection_Remove (children, topHandle); - OS.UIElementCollection_Insert (children, index, topHandle); - } - OS.GCHandle_Free (children); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 (); - if (parent == null) return; //TODO - if (control != null) { - if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); - if (parent != control.parent) return; - } - int index; - int parentHandle = parent.parentingHandle (); - int children = OS.Panel_Children (parentHandle); - if (control != null) { - index = Math.max (0, OS.UIElementCollection_IndexOf (children, control.topHandle ()) - 1); - } else { - if (parentHandle != parent.handle) { - index = 1; - } else { - index = 0; - } - } - int topHandle = topHandle (); - if (OS.UIElementCollection_IndexOf (children, topHandle) > index) { - OS.UIElementCollection_Remove (children, topHandle); - OS.UIElementCollection_Insert (children, index, topHandle); - } - OS.GCHandle_Free (children); -} - -Accessible new_Accessible (Control control) { - return Accessible.internal_new_Accessible (this); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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, boolean) - */ -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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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, boolean) - */ -public void pack (boolean changed) { - checkWidget (); - setSize (computeSize (SWT.DEFAULT, SWT.DEFAULT, changed)); -} - -/** - * Prints the receiver and all children. - * - * @param gc the gc where the drawing occurs - * @return <code>true</code> if the operation was successful and <code>false</code> otherwise - * - * @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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean print (GC gc) { - checkWidget (); - if (gc == null) error (SWT.ERROR_NULL_ARGUMENT); - if (gc.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); - return false; -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 SWT#Paint - * @see SWT#NO_BACKGROUND - * @see SWT#NO_REDRAW_RESIZE - * @see SWT#NO_MERGE_PAINTS - * @see SWT#DOUBLE_BUFFERED - */ -public void redraw () { - checkWidget (); - redraw (false); -} - -void redraw (boolean all) { -// checkWidget (); - //TODO InvalidateVisual invalidates the entire visual tree - OS.UIElement_InvalidateVisual (topHandle ()); - OS.UIElement_InvalidateVisual (handle); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 SWT#Paint - * @see SWT#NO_BACKGROUND - * @see SWT#NO_REDRAW_RESIZE - * @see SWT#NO_MERGE_PAINTS - * @see SWT#DOUBLE_BUFFERED - */ -public void redraw (int x, int y, int width, int height, boolean all) { - checkWidget (); - if (width <= 0 || height <= 0) return; - //TODO redraw only rect - redraw(true); -} - -void register () { - display.addWidget (handle, this); -} - -void releaseHandle () { - super.releaseHandle (); - if (handle != 0) OS.GCHandle_Free (handle); - handle = 0; - parent = null; -} - -void releaseParent () { - parent.removeControl (this); -} - -void releaseWidget () { - super.releaseWidget (); -// if (toolTipText != null) { -// setToolTipText (getShell (), null); -// } - toolTipText = null; - if (menu != null && !menu.isDisposed ()) { - menu.dispose (); - } - menu = null; - cursor = null; - layoutData = null; - if (accessible != null) { - accessible.internal_dispose_Accessible (); - } - accessible = null; - region = 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Move, listener); - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.FocusIn, listener); - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.KeyUp, listener); - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.MouseEnter, listener); - eventTable.unhook (SWT.MouseExit, listener); - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.MouseDown, listener); - eventTable.unhook (SWT.MouseUp, listener); - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook(SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Traverse, listener); -} - -boolean sendFocusEvent (int type) { - Shell shell = getShell (); - - Display display = this.display; - display.focusControl = this; - sendEvent (type); - 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 SWT.FocusIn: - shell.setActiveControl (this); - break; - case SWT.FocusOut: - if (shell != display.getActiveShell ()) { - shell.setActiveControl (null); - } - break; - } - } - return true; -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 (); - if (color != null) { - if (color.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT); - if (background != 0 && OS.Object_Equals (color.handle, background)) return; - background = color.handle; - } else { - if (background == 0) return; - background = 0; - } - setBackground (); -// updateBackgroundColor (); -} - -int backgroundHandle () { - return handle; -} - -int backgroundProperty () { - return OS.Control_BackgroundProperty (); -} - -void setBackground () { - int backgroundHandle = backgroundHandle (); - int property = backgroundProperty (); - int brush = 0; - if ((state & PARENT_BACKGROUND) == 0) { - if (backgroundImage != null) { - int imageHandle = backgroundImage.handle; - brush = OS.gcnew_ImageBrush (imageHandle); - OS.TileBrush_TileMode (brush, OS.TileMode_Tile); - OS.TileBrush_Stretch (brush, OS.Stretch_Fill); - OS.TileBrush_ViewportUnits (brush, OS.BrushMappingMode_Absolute); - int rect = OS.gcnew_Rect (0, 0, OS.BitmapSource_PixelWidth (imageHandle), OS.BitmapSource_PixelHeight (imageHandle)); - OS.TileBrush_Viewport (brush, rect); - OS.GCHandle_Free (rect); - } else { - int color = background; - if (color == 0) { - color = defaultBackground (); - if ((state & THEME_BACKGROUND) != 0) { - Control themeControl = findThemeControl (); - if (themeControl != null) { - if (color != 0) { - /* - * Feature in WPF. If the control does not have a background - * brush it does not receive input events. - * The fix is to set a transparent background. - */ - color = OS.Colors_Transparent; - } - } - } - } - if (color != 0) { - brush = OS.gcnew_SolidColorBrush (color); - } - } - } - if (brush != 0) { - OS.DependencyObject_SetValue (backgroundHandle, property, brush); - OS.GCHandle_Free (brush); - } else { - OS.DependencyObject_ClearValue (backgroundHandle, property); - } - OS.GCHandle_Free (property); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 != null) { - if (image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); - if (image.type != SWT.BITMAP) error (SWT.ERROR_INVALID_ARGUMENT); - } - if (backgroundImage == image) return; - backgroundImage = image; - setBackground (); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 = MOVED | RESIZED; - setBounds (x, y, Math.max (0, width), Math.max (0, height), flags); -} - -int setBounds (int x, int y, int width, int height, int flags) { - int result = 0; - int topHandle = topHandle (); - if ((flags & MOVED) != 0) { - int oldX = (int) OS.Canvas_GetLeft (topHandle); - int oldY = (int) OS.Canvas_GetTop (topHandle); - if (oldX != x) { - this.x = x; - OS.Canvas_SetLeft (topHandle, x); - } - if (oldY != y) { - this.y = y; - OS.Canvas_SetTop (topHandle, y); - } - if (oldX != x || oldY != y) { - sendEvent (SWT.Move); - if (isDisposed ()) return 0; - result |= MOVED; - } - } - if ((flags & RESIZED) != 0) { - int oldWidth = (int) OS.FrameworkElement_Width (topHandle); - int oldHeight = (int) OS.FrameworkElement_Height (topHandle); - if (oldWidth != width) { - this.width = width; - OS.FrameworkElement_Width (topHandle, width); - } - if (oldHeight != height) { - this.height = height; - OS.FrameworkElement_Height (topHandle, height); - } - if (oldWidth != width || oldHeight != height) { - sendEvent (SWT.Resize); - if (isDisposed ()) return 0; - result |= RESIZED; - } - } - return result; -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 == null) error (SWT.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. Note that on some platforms, - * a mouse button must currently be down for capture to be assigned. - * - * @param capture <code>true</code> to capture the mouse, and <code>false</code> to release it - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 (boolean capture) { - checkWidget (); - if (capture) { - OS.UIElement_CaptureMouse (handle); - } else { - OS.UIElement_ReleaseMouseCapture (handle); - } -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 != null && cursor.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - this.cursor = cursor; - if (cursor != null) { - OS.FrameworkElement_Cursor (handle, cursor.handle); - } else { - int property = OS.FrameworkElement_CursorProperty (); - OS.DependencyObject_ClearValue (handle, property); - OS.GCHandle_Free (property); - } -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 (boolean dragDetect) { - checkWidget (); - if (dragDetect) { - state |= DRAG_DETECT; - } else { - state &= ~DRAG_DETECT; - } -} - -/** - * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED - */ -public void setEffect(Effect effect){ - checkWidget (); - if (effect != null && effect.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); - if (effect != null) { - OS.UIElement_BitmapEffect (handle, effect.handle); - OS.UIElement_ClipToBounds (topHandle (), false); - } else { - OS.UIElement_BitmapEffect (handle, 0); - setClipping(); - } -// updateLayout(handle); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 (boolean enabled) { - checkWidget (); - if (((state & DISABLED) == 0) == enabled) return; - /* - * 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; - boolean fixFocus = false; - if (!enabled) { -// if (display.focusEvent != SWT.FocusOut) { - control = display.getFocusControl (); - fixFocus = isFocusAncestor (control); -// } - } - if (enabled) { - state &= ~DISABLED; - } else { - state |= DISABLED; - } - enableWidget (enabled); - if (fixFocus) fixFocus (control); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 boolean setFocus () { - checkWidget (); - if ((style & SWT.NO_FOCUS) != 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 != null) { - if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - this.font = font; - if (font == null) font = defaultFont(); - setFont (font.handle, font.size); -} - -void setFont (int font, double size) { - if (font != 0) { - int fontFamily = OS.Typeface_FontFamily( font); - int style = OS.Typeface_Style (font); - int weight = OS.Typeface_Weight (font); - int stretch = OS.Typeface_Stretch (font); - OS.Control_FontFamily (handle, fontFamily); - OS.Control_FontStyle (handle, style); - OS.Control_FontWeight (handle, weight); - OS.Control_FontStretch (handle, stretch); - OS.Control_FontSize (handle, size); - OS.GCHandle_Free (fontFamily); - OS.GCHandle_Free (style); - OS.GCHandle_Free (weight); - OS.GCHandle_Free (stretch); - } else { - int property = OS.Control_FontFamilyProperty (); - OS.DependencyObject_ClearValue (handle, property); - OS.GCHandle_Free (property); - property = OS.Control_FontStyleProperty (); - OS.DependencyObject_ClearValue (handle, property); - OS.GCHandle_Free (property); - property = OS.Control_FontWeightProperty (); - OS.DependencyObject_ClearValue (handle, property); - OS.GCHandle_Free (property); - property = OS.Control_FontStretchProperty (); - OS.DependencyObject_ClearValue (handle, property); - OS.GCHandle_Free (property); - property = OS.Control_FontSizeProperty (); - OS.DependencyObject_ClearValue (handle, property); - OS.GCHandle_Free (property); - } -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 brush = 0; - if (color != null) { - if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - if (foreground != 0 && OS.Object_Equals (color.handle, foreground)) return; - foreground = color.handle; - brush = OS.gcnew_SolidColorBrush (foreground); - } else { - if (foreground == 0) return; - foreground = 0; - } - setForegroundBrush (brush); - if (brush != 0) OS.GCHandle_Free (brush); -} - -void setForegroundBrush (int brush) { - if (brush != 0) { - OS.Control_Foreground (handle, brush); - } else { - int property = OS.Control_ForegroundProperty (); - OS.DependencyObject_ClearValue (handle, property); - OS.GCHandle_Free (property); - } -} - -/** - * Sets the layout data associated with the receiver to the argument. - * - * @param layoutData the new layout data for the receiver. - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 = MOVED; - 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 == null) error (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 != null) { - if (menu.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - if ((menu.style & SWT.POP_UP) == 0) { - error (SWT.ERROR_MENU_NOT_POP_UP); - } - if (menu.parent != menuShell ()) { - error (SWT.ERROR_INVALID_PARENT); - } - } - this.menu = menu; - OS.FrameworkElement_ContextMenu(handle, menu != null ? menu.handle : 0); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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, boolean) - * @see #update() - */ -public void setRedraw (boolean 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 == 0) { -// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); -// if ((bits & OS.WS_VISIBLE) == 0) state |= HIDDEN; -// } -// if (redraw) { -// if (--drawCount == 0) { -// OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); -// if ((state & HIDDEN) != 0) { -// state &= ~HIDDEN; -// OS.ShowWindow (handle, OS.SW_HIDE); -// } else { -// 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); -// } -// } -// } -// } else { -// if (drawCount++ == 0) { -// OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); -// } -// } - redraw (); -} - -/** - * Sets the shape of the control to the region specified - * by the argument. When the argument is null, the - * default shape of the control is restored. - * - * @param region the region that defines the shape of the control (or null) - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the region has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 void setRegion (Region region) { - checkWidget (); - if (region != null && region.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); - OS.UIElement_Clip (topHandle (), region.handle); - this.region = region; -} - -boolean 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 = RESIZED; - 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - setSize (size.x, size.y); -} - -boolean setTabGroupFocus () { - return setTabItemFocus (); -} - -boolean setTabItemFocus () { - if (!isShowing ()) return false; - return forceFocus (); -} - -/** - * Sets the receiver's tool tip text to the argument, which - * may be null indicating that the default tool tip for the - * control will be shown. For a control that has a default - * tool tip, such as the Tree control on Windows, setting - * the tool tip text to an empty string replaces the default, - * causing no tool tip text to be shown. - * <p> - * The mnemonic indicator (character '&') is not displayed in a tool tip. - * To display a single '&' in the tool tip, the character '&' can be - * escaped by doubling it in the string. - * </p> - * - * @param string the new tool tip text (or null) - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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; - if (string != null && string.length() == 0) string = null; - int strPtr = createDotNetString (string, false); - OS.FrameworkElement_ToolTip (handle, strPtr); - if (strPtr != 0) OS.GCHandle_Free (strPtr); -} - -/** - * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED - */ -public void setTransform (Transform t) { - checkWidget (); - if (t == null) { - OS.FrameworkElement_RenderTransform (handle, 0); - return; - } - int matrixTransform = OS.gcnew_MatrixTransform (t.handle); -// OS.FrameworkElement_LayoutTransform (handle, matrixTransform); - OS.FrameworkElement_RenderTransform (handle, matrixTransform); - OS.GCHandle_Free (matrixTransform); -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 (boolean visible) { - checkWidget (); - int topHandle = topHandle (); - if ((OS.UIElement_Visibility (topHandle) == OS.Visibility_Visible) == visible) return; - if (visible) { - sendEvent (SWT.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; - boolean fixFocus = false; - if (!visible) { -// if (display.focusEvent != SWT.FocusOut) { - control = display.getFocusControl (); - fixFocus = isFocusAncestor (control); -// } - } - OS.UIElement_Visibility (topHandle, visible ? OS.Visibility_Visible : OS.Visibility_Hidden); - if (isDisposed ()) return; - if (!visible) { - sendEvent (SWT.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 sortAscending (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; - } - } - } - } -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 (); - return display.map (null, this, x, 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 == null) error (SWT.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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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 (); - return display.map (this, null, x, 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if 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 == null) error (SWT.ERROR_NULL_ARGUMENT); - return toDisplay (point.x, point.y); -} - -boolean translateMnemonic (Event event, Control control) { - if (control == this) return false; - if (!isVisible () || !isEnabled ()) return false; - event.doit = mnemonicMatch (event.character); - return traverse (event); -} - -boolean translateMnemonic (int e) { - int key = OS.KeyEventArgs_Key(e); - if (key < 0x20) return false; - int keyboardDevice = OS.KeyboardEventArgs_KeyboardDevice(e); - int modifiers = OS.KeyboardDevice_Modifiers(keyboardDevice); - OS.GCHandle_Free(keyboardDevice); - if (modifiers == 0) { - int code = traversalCode (key, e); - if ((code & SWT.TRAVERSE_MNEMONIC) == 0) return false; - } else { - if ((modifiers & OS.ModifierKeys_Alt) == 0) return false; - } - Decorations shell = menuShell (); - if (shell.isVisible () && shell.isEnabled ()) { - Event event = new Event (); - event.detail = SWT.TRAVERSE_MNEMONIC; - if (setKeyState (event, SWT.Traverse, e)) { - return translateMnemonic (event, null) || shell.translateMnemonic (event, this); - } - } - return false; -} - -int traversalCode (int key, int event) { - int code = SWT.TRAVERSE_RETURN | SWT.TRAVERSE_TAB_NEXT | SWT.TRAVERSE_TAB_PREVIOUS | SWT.TRAVERSE_PAGE_NEXT | SWT.TRAVERSE_PAGE_PREVIOUS; - Shell shell = getShell (); - if (shell.parent != null) code |= SWT.TRAVERSE_ESCAPE; - return code; -} - -boolean translateTraversal (int e) { - int detail = SWT.TRAVERSE_NONE; - int key = OS.KeyEventArgs_Key(e); - int code = traversalCode (key, e); - boolean all = false; - switch (key) { - case OS.Key_Escape: { - all = true; - detail = SWT.TRAVERSE_ESCAPE; - break; - } - case OS.Key_Return: { - all = true; - detail = SWT.TRAVERSE_RETURN; - break; - } - case OS.Key_Tab: { - int keyboardDevice = OS.KeyboardEventArgs_KeyboardDevice (e); - int modifiers = OS.KeyboardDevice_Modifiers (keyboardDevice); - OS.GCHandle_Free (keyboardDevice); - boolean next = (modifiers & OS.ModifierKeys_Shift) == 0; - detail = next ? SWT.TRAVERSE_TAB_NEXT : SWT.TRAVERSE_TAB_PREVIOUS; - break; - } - case OS.Key_Up: - case OS.Key_Left: - case OS.Key_Down: - case OS.Key_Right: { - boolean next = key == OS.Key_Down || key == OS.Key_Right; - detail = next ? SWT.TRAVERSE_ARROW_NEXT : SWT.TRAVERSE_ARROW_PREVIOUS; - break; - } - case OS.Key_PageUp: - case OS.Key_PageDown: { - all = true; - int keyboardDevice = OS.KeyboardEventArgs_KeyboardDevice (e); - int modifiers = OS.KeyboardDevice_Modifiers (keyboardDevice); - OS.GCHandle_Free (keyboardDevice); - if ((modifiers & OS.ModifierKeys_Control) == 0) return false; - detail = key == OS.Key_PageDown ? SWT.TRAVERSE_PAGE_NEXT : SWT.TRAVERSE_PAGE_PREVIOUS; - break; - } - default: - return false; - } - Event event = new Event (); - event.doit = (code & detail) != 0; - event.detail = detail; - event.time = OS.InputEventArgs_Timestamp (e); - if (!setKeyState (event, SWT.Traverse, e)) return false; - Shell shell = getShell (); - Control control = this; - do { - if (control.traverse (event)) return true; - if (!event.doit && control.hooks (SWT.Traverse)) return false; - if (control == shell) return false; - control = control.parent; - } while (all && control != null); - return false; -} - -boolean 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 (SWT.Traverse, event); - if (isDisposed ()) return true; - if (!event.doit) return false; - switch (event.detail) { - case SWT.TRAVERSE_NONE: return true; - case SWT.TRAVERSE_ESCAPE: return traverseEscape (); - case SWT.TRAVERSE_RETURN: return traverseReturn (); - case SWT.TRAVERSE_TAB_NEXT: return traverseGroup (true); - case SWT.TRAVERSE_TAB_PREVIOUS: return traverseGroup (false); - case SWT.TRAVERSE_ARROW_NEXT: return traverseItem (true); - case SWT.TRAVERSE_ARROW_PREVIOUS: return traverseItem (false); - case SWT.TRAVERSE_MNEMONIC: return traverseMnemonic (event.character); - case SWT.TRAVERSE_PAGE_NEXT: return traversePage (true); - case SWT.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>SWT.TRAVERSE_ESCAPE</code>, <code>SWT.TRAVERSE_RETURN</code>, - * <code>SWT.TRAVERSE_TAB_NEXT</code>, <code>SWT.TRAVERSE_TAB_PREVIOUS</code>, - * <code>SWT.TRAVERSE_ARROW_NEXT</code> and <code>SWT.TRAVERSE_ARROW_PREVIOUS</code>. - * - * @param traversal the type of traversal - * @return true if the traversal succeeded - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public boolean traverse (int traversal) { - checkWidget (); - Event event = new Event (); - event.doit = true; - event.detail = traversal; - return traverse (event); -} - -boolean traverseEscape () { - return false; -} - -boolean traverseGroup (boolean next) { - Control root = computeTabRoot (); - Control group = computeTabGroup (); - Control [] list = root.computeTabList (); - int length = list.length; - int index = 0; - while (index < length) { - if (list [index] == 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 == length) return false; - int start = index, offset = (next) ? 1 : -1; - while ((index = ((index + offset + length) % length)) != start) { - Control control = list [index]; - if (!control.isDisposed () && control.setTabGroupFocus ()) { - return true; - } - } - if (group.isDisposed ()) return false; - return group.setTabGroupFocus (); -} - -boolean traverseItem (boolean next) { - Control [] children = parent._getChildren (); - int length = children.length; - int index = 0; - while (index < length) { - if (children [index] == 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 == length) return false; - int start = index, offset = (next) ? 1 : -1; - while ((index = (index + offset + length) % length) != start) { - Control child = children [index]; - if (!child.isDisposed () && child.isTabItem ()) { - if (child.setTabItemFocus ()) return true; - } - } - return false; -} - -boolean traverseMnemonic (char key) { - return mnemonicHit (key); -} - -boolean traversePage (boolean next) { - return false; -} - -boolean traverseReturn () { - return false; -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - 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, boolean) - * @see PaintListener - * @see SWT#Paint - */ -public void update () { - checkWidget (); - update (false); -} - -void update (boolean all) { - checkWidget (); - //TODO -// 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 == null) control = this; -// setBackgroundPixel (control.background); -} - -void updateBackgroundImage () { -// Control control = findBackgroundControl (); -// Image image = control != null ? control.backgroundImage : backgroundImage; -// setBackgroundImage (image != null ? image.handle : 0); -} - -void updateBackgroundMode () { - int oldState = state & PARENT_BACKGROUND; - checkBackground (); - if (oldState != (state & PARENT_BACKGROUND)) { - setBackground (); - } -} - -void updateFont (Font oldFont, Font newFont) { - if (getFont ().equals (oldFont)) setFont (newFont); -} - -void updateImages () { - /* Do nothing */ -} - -void updateLayout (boolean resize, boolean all) { - /* Do nothing */ -} - -int widgetParent () { - return parent.handle; -} - -/** - * 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 SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public boolean setParent (Composite parent) { - checkWidget (); - if (parent == null) error (SWT.ERROR_NULL_ARGUMENT); - if (parent.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - if (this.parent == parent) return true; - if (!isReparentable ()) return false; - return false; -} - -} - |