| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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.motif.*; |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.accessibility.*; |
| |
| /** |
| * 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> |
| */ |
| public abstract class Control extends Widget implements Drawable { |
| int drawCount, redrawWindow; |
| Composite parent; |
| Cursor cursor; |
| Menu menu; |
| Image backgroundImage; |
| Font font; |
| Region region; |
| String toolTipText; |
| Object layoutData; |
| Accessible accessible; |
| |
| Control () { |
| /* Do nothing */ |
| } |
| /** |
| * 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 Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Control (Composite parent, int style) { |
| super (parent, style); |
| this.parent = parent; |
| createWidget (0); |
| } |
| /** |
| * 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 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 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 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); |
| } |
| int borderHandle () { |
| return topHandle (); |
| } |
| 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 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(); |
| int width = DEFAULT_WIDTH; |
| int height = DEFAULT_HEIGHT; |
| if (wHint != SWT.DEFAULT) width = wHint; |
| if (hHint != SWT.DEFAULT) height = hHint; |
| int border = getBorderWidth (); |
| width += border * 2; |
| height += border * 2; |
| return new Point (width, height); |
| } |
| |
| Control computeTabGroup () { |
| if (isTabGroup ()) return this; |
| return parent.computeTabGroup (); |
| } |
| |
| Control computeTabRoot () { |
| Control [] tabList = parent._getTabList (); |
| if (tabList != 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 (int index) { |
| state |= DRAG_DETECT; |
| checkOrientation (parent); |
| super.createWidget (index); |
| checkBackground (); |
| checkBuffered (); |
| setParentTraversal (); |
| overrideTranslations (); |
| |
| /* |
| * Register for the IME. This is necessary on single byte |
| * platforms as well as double byte platforms in order to |
| * get composed characters. For example, accented characters |
| * on a German locale. |
| */ |
| if (!hasIMSupport()) { |
| OS.XmImRegister (handle, 0); |
| int focusHandle = focusHandle (); |
| if (handle != focusHandle) { |
| OS.XmImRegister (focusHandle, 0); |
| } |
| } |
| |
| /* |
| * Feature in MOTIF. When a widget is created before the |
| * parent has been realized, the widget is created behind |
| * all siblings in the Z-order. When a widget is created |
| * after the parent has been realized, it is created in |
| * front of all siblings. This is not incorrect but is |
| * unexpected. The fix is to force all widgets to always |
| * be created behind their siblings. |
| */ |
| int topHandle = topHandle (); |
| if (OS.XtIsRealized (topHandle) && !OS.XtIsSubclass (topHandle, OS.shellWidgetClass ())) { |
| int window = OS.XtWindow (topHandle); |
| if (window != 0) { |
| int display = OS.XtDisplay (topHandle); |
| if (display != 0) OS.XLowerWindow (display, window); |
| } |
| /* |
| * Make sure that the widget has been properly realized |
| * because the widget was created after the parent |
| * has been realized. This is not part of the fix |
| * for Z-order in the code above. |
| */ |
| realizeChildren (); |
| } |
| |
| /* |
| * Bug in Motif. Under certain circumstances, when a |
| * text widget is created as a child of another control |
| * that has drag and drop, starting a drag in the text |
| * widget causes a protection fault. The fix is to |
| * disable the built in drag and drop for all widgets |
| * by overriding the drag start traslation. |
| */ |
| OS.XtOverrideTranslations (handle, display.dragTranslations); |
| |
| /* |
| * Feature in Motif. When the XmNfontList resource is set for |
| * a widget, Motif creates a copy of the fontList and disposes |
| * the copy when the widget is disposed. This means that when |
| * the programmer queries the font, not only will the handle be |
| * different but the font will be unexpectedly disposed when |
| * the widget is disposed. This can cause GP's when the font |
| * is set in another widget. The fix is to cache the font that |
| * the programmer provides. The initial value of the cache is |
| * the default font for the widget. |
| */ |
| font = defaultFont (); |
| } |
| int defaultBackground () { |
| return display.defaultBackground; |
| } |
| Font defaultFont () { |
| return display.defaultFont; |
| } |
| int defaultForeground () { |
| return display.defaultForeground; |
| } |
| /** |
| * 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 != 2 || count != 1) return false; |
| if (!dragDetect (x, y, false, null)) return false; |
| return sendDragEvent (button, stateMask, x, y, true); |
| } |
| boolean dragDetect (int x, int y, boolean force, boolean [] consume) { |
| return true; |
| } |
| boolean drawGripper (int x, int y, int width, int height, boolean vertical) { |
| return false; |
| } |
| void enableWidget (boolean enabled) { |
| enableHandle (enabled, handle); |
| } |
| Control findBackgroundControl () { |
| if ((state & BACKGROUND) != 0 || backgroundImage != null) return this; |
| return (state & PARENT_BACKGROUND) != 0 ? parent.findBackgroundControl () : null; |
| } |
| 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); |
| } |
| int focusHandle () { |
| return handle; |
| } |
| int fontHandle () { |
| return handle; |
| } |
| /** |
| * 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); |
| shell.bringToTop (false); |
| int focusHandle = focusHandle (); |
| if (handle != focusHandle) { |
| int [] argList1 = {OS.XmNnumChildren, 0}; |
| OS.XtGetValues (handle, argList1, argList1.length / 2); |
| if (argList1 [1] > 1) { |
| int [] argList = new int [] {OS.XmNtraversalOn, 0}; |
| OS.XtGetValues (focusHandle, argList, argList.length / 2); |
| if (argList [1] == 0) { |
| argList [1] = 1; |
| OS.XtSetValues (focusHandle, argList, argList.length / 2); |
| overrideTranslations (); |
| } |
| } else { |
| focusHandle = handle; |
| } |
| } |
| int [] argList = new int [] {OS.XmNtraversalOn, 0}; |
| OS.XtGetValues (focusHandle, argList, argList.length / 2); |
| boolean force = argList [1] == 0; |
| if (force) { |
| state |= FOCUS_FORCED; |
| argList [1] = 1; |
| OS.XtSetValues (focusHandle, argList, argList.length / 2); |
| overrideTranslations (); |
| } |
| if (XmProcessTraversal (focusHandle, OS.XmTRAVERSE_CURRENT)) return true; |
| if (force) { |
| state &= ~FOCUS_FORCED; |
| argList [1] = 0; |
| OS.XtSetValues (focusHandle, argList, argList.length / 2); |
| } |
| return false; |
| } |
| |
| /** |
| * 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 = Accessible.internal_new_Accessible (this); |
| } |
| return accessible; |
| } |
| |
| /** |
| * Returns the receiver's background color. |
| * |
| * @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.motif_new (display, getXColor (control.getBackgroundPixel ())); |
| } |
| /** |
| * 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 getBackgroundPixel () { |
| int [] argList = {OS.XmNbackground, 0}; |
| OS.XtGetValues (handle, argList, argList.length / 2); |
| return argList [1]; |
| } |
| /** |
| * 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(); |
| int borderHandle = borderHandle (); |
| int [] argList = {OS.XmNborderWidth, 0}; |
| OS.XtGetValues (borderHandle, argList, argList.length / 2); |
| return argList [1]; |
| } |
| /** |
| * 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 (); |
| int [] argList = {OS.XmNx, 0, OS.XmNy, 0, OS.XmNwidth, 0, OS.XmNheight, 0, OS.XmNborderWidth, 0}; |
| OS.XtGetValues (topHandle, argList, argList.length / 2); |
| int borders = argList [9] * 2; |
| return new Rectangle ((short) argList [1], (short) argList [3], argList [5] + borders, argList [7] + borders); |
| } |
| Point getClientLocation () { |
| short [] handle_x = new short [1], handle_y = new short [1]; |
| OS.XtTranslateCoords (handle, (short) 0, (short) 0, handle_x, handle_y); |
| short [] topHandle_x = new short [1], topHandle_y = new short [1]; |
| OS.XtTranslateCoords (parent.handle, (short) 0, (short) 0, topHandle_x, topHandle_y); |
| return new Point (handle_x [0] - topHandle_x [0], handle_y [0] - topHandle_y [0]); |
| } |
| String getCodePage () { |
| return font.codePage; |
| } |
| /** |
| * 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(); |
| int [] argList = {OS.XmNsensitive, 0}; |
| OS.XtGetValues (topHandle (), argList, argList.length / 2); |
| return argList [1] != 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; |
| } |
| |
| int getFontAscent (int font) { |
| |
| /* Create a font context to iterate over each element in the font list */ |
| int [] buffer = new int [1]; |
| if (!OS.XmFontListInitFontContext (buffer, font)) { |
| error (SWT.ERROR_NO_HANDLES); |
| } |
| int context = buffer [0]; |
| |
| /* Values discovering during iteration */ |
| int ascent = 0; |
| XFontStruct fontStruct = new XFontStruct (); |
| int fontListEntry; |
| int [] fontStructPtr = new int [1]; |
| int [] fontNamePtr = new int [1]; |
| |
| /* Go through each entry in the font list. */ |
| while ((fontListEntry = OS.XmFontListNextEntry (context)) != 0) { |
| int fontPtr = OS.XmFontListEntryGetFont (fontListEntry, buffer); |
| if (buffer [0] == 0) { |
| /* FontList contains a single font */ |
| OS.memmove (fontStruct, fontPtr, XFontStruct.sizeof); |
| if (fontStruct.ascent > ascent) ascent = fontStruct.ascent; |
| } else { |
| /* FontList contains a fontSet */ |
| int nFonts = OS.XFontsOfFontSet (fontPtr, fontStructPtr, fontNamePtr); |
| int [] fontStructs = new int [nFonts]; |
| OS.memmove (fontStructs, fontStructPtr [0], nFonts * 4); |
| |
| /* Go through each fontStruct in the font set */ |
| for (int i=0; i<nFonts; i++) { |
| OS.memmove (fontStruct, fontStructs[i], XFontStruct.sizeof); |
| if (fontStruct.ascent > ascent) ascent = fontStruct.ascent; |
| } |
| } |
| } |
| |
| OS.XmFontListFreeFontContext (context); |
| return ascent; |
| } |
| |
| int getFontHeight (int font) { |
| |
| /* Create a font context to iterate over each element in the font list */ |
| int [] buffer = new int [1]; |
| if (!OS.XmFontListInitFontContext (buffer, font)) { |
| error (SWT.ERROR_NO_HANDLES); |
| } |
| int context = buffer [0]; |
| |
| /* Values discovering during iteration */ |
| int height = 0; |
| XFontStruct fontStruct = new XFontStruct (); |
| int fontListEntry; |
| int [] fontStructPtr = new int [1]; |
| int [] fontNamePtr = new int [1]; |
| |
| /* Go through each entry in the font list. */ |
| while ((fontListEntry = OS.XmFontListNextEntry (context)) != 0) { |
| int fontPtr = OS.XmFontListEntryGetFont (fontListEntry, buffer); |
| if (buffer [0] == 0) { |
| /* FontList contains a single font */ |
| OS.memmove (fontStruct, fontPtr, XFontStruct.sizeof); |
| int fontHeight = fontStruct.ascent + fontStruct.descent; |
| if (fontHeight > height) height = fontHeight; |
| } else { |
| /* FontList contains a fontSet */ |
| int nFonts = OS.XFontsOfFontSet (fontPtr, fontStructPtr, fontNamePtr); |
| int [] fontStructs = new int [nFonts]; |
| OS.memmove (fontStructs, fontStructPtr [0], nFonts * 4); |
| |
| /* Go through each fontStruct in the font set */ |
| for (int i=0; i<nFonts; i++) { |
| OS.memmove (fontStruct, fontStructs[i], XFontStruct.sizeof); |
| int fontHeight = fontStruct.ascent + fontStruct.descent; |
| if (fontHeight > height) height = fontHeight; |
| } |
| } |
| } |
| |
| OS.XmFontListFreeFontContext (context); |
| return height; |
| } |
| //int getFontList () { |
| // int fontHandle = fontHandle (); |
| // int [] argList = {OS.XmNfontList, 0}; |
| // OS.XtGetValues (fontHandle, argList, argList.length / 2); |
| // if (argList [1] != 0) return argList [1]; |
| // if (fontList == 0) fontList = defaultFont (); |
| // return fontList; |
| //} |
| /** |
| * 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.motif_new (display, getXColor (getForegroundPixel ())); |
| } |
| int getForegroundPixel () { |
| int [] argList = {OS.XmNforeground, 0}; |
| OS.XtGetValues (handle, argList, argList.length / 2); |
| return argList [1]; |
| } |
| Caret getIMCaret () { |
| return null; |
| } |
| /** |
| * 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(); |
| int topHandle = topHandle (); |
| int [] argList = {OS.XmNx, 0, OS.XmNy, 0}; |
| OS.XtGetValues (topHandle, argList, argList.length / 2); |
| return new Point ((short) argList [1], (short) argList [3]); |
| } |
| /** |
| * 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; |
| } |
| int getMinimumHeight () { |
| return 0; |
| } |
| /** |
| * Returns the receiver's monitor. |
| * |
| * @return the receiver's monitor |
| * |
| * @since 3.0 |
| */ |
| public Monitor getMonitor () { |
| checkWidget(); |
| Monitor [] monitors = display.getMonitors (); |
| if (monitors.length == 1) return monitors [0]; |
| int index = -1, value = -1; |
| Rectangle bounds = getBounds (); |
| if (this != getShell ()) { |
| bounds = display.map (this.parent, null, bounds); |
| } |
| for (int i=0; i<monitors.length; i++) { |
| Rectangle rect = bounds.intersection (monitors [i].getBounds ()); |
| int area = rect.width * rect.height; |
| if (area > 0 && area > value) { |
| index = i; |
| value = area; |
| } |
| } |
| if (index >= 0) return monitors [index]; |
| int centerX = bounds.x + bounds.width / 2, centerY = bounds.y + bounds.height / 2; |
| for (int i=0; i<monitors.length; i++) { |
| Rectangle rect = monitors [i].getBounds (); |
| int x = centerX < rect.x ? rect.x - centerX : centerX > rect.x + rect.width ? centerX - rect.x - rect.width : 0; |
| int y = centerY < rect.y ? rect.y - centerY : centerY > rect.y + rect.height ? centerY - rect.y - rect.height : 0; |
| int distance = x * x + y * y; |
| if (index == -1 || distance < value) { |
| index = i; |
| value = distance; |
| } |
| } |
| return monitors [index]; |
| } |
| int getNavigationType () { |
| int [] argList = {OS.XmNnavigationType, 0}; |
| OS.XtGetValues (handle, argList, argList.length / 2); |
| return argList [1]; |
| } |
| /** |
| * 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 [] argList = {OS.XmNwidth, 0, OS.XmNheight, 0, OS.XmNborderWidth, 0}; |
| OS.XtGetValues (topHandle, argList, argList.length / 2); |
| int borders = argList [5] * 2; |
| return new Point (argList [1] + borders, argList [3] + borders); |
| } |
| /** |
| * 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; |
| } |
| /** |
| * 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(); |
| int topHandle = topHandle (); |
| int [] argList = {OS.XmNmappedWhenManaged, 0}; |
| OS.XtGetValues (topHandle, argList, argList.length / 2); |
| return argList [1] != 0; |
| } |
| XColor getXColor (int pixel) { |
| int display = OS.XtDisplay (handle); |
| if (display == 0) return null; |
| int [] argList = {OS.XmNcolormap, 0}; |
| OS.XtGetValues (handle, argList, argList.length / 2); |
| int colormap = argList [1]; |
| if (colormap == 0) return null; |
| XColor color = new XColor (); |
| color.pixel = pixel; |
| OS.XQueryColor (display, colormap, color); |
| return color; |
| } |
| boolean hasFocus () { |
| return this == display.getFocusControl (); |
| } |
| /** |
| * Returns true if the widget has native IM support |
| */ |
| boolean hasIMSupport() { |
| return false; |
| } |
| void hookEvents () { |
| int windowProc = display.windowProc; |
| OS.XtAddEventHandler (handle, OS.ButtonPressMask, false, windowProc, BUTTON_PRESS); |
| OS.XtAddEventHandler (handle, OS.ButtonReleaseMask, false, windowProc, BUTTON_RELEASE); |
| OS.XtAddEventHandler (handle, OS.PointerMotionMask, false, windowProc, POINTER_MOTION); |
| OS.XtAddEventHandler (handle, OS.EnterWindowMask, false, windowProc, ENTER_WINDOW); |
| OS.XtAddEventHandler (handle, OS.LeaveWindowMask, false, windowProc, LEAVE_WINDOW); |
| OS.XtInsertEventHandler (handle, OS.ExposureMask, false, windowProc, EXPOSURE, OS.XtListTail); |
| OS.XtAddCallback (handle, OS.XmNhelpCallback, windowProc, HELP_CALLBACK); |
| OS.XtAddEventHandler (handle, OS.KeyPressMask, false, windowProc, KEY_PRESS); |
| OS.XtAddEventHandler (handle, OS.KeyReleaseMask, false, windowProc, KEY_RELEASE); |
| OS.XtInsertEventHandler (handle, OS.FocusChangeMask, false, windowProc, FOCUS_CHANGE, OS.XtListTail); |
| int focusHandle = focusHandle (); |
| if (handle != focusHandle) { |
| OS.XtAddEventHandler (focusHandle, OS.KeyPressMask, false, windowProc, KEY_PRESS); |
| OS.XtAddEventHandler (focusHandle, OS.KeyReleaseMask, false, windowProc, KEY_RELEASE); |
| OS.XtInsertEventHandler (focusHandle, OS.FocusChangeMask, false, windowProc, FOCUS_CHANGE, OS.XtListTail); |
| } |
| } |
| int hoverProc (int id) { |
| return hoverProc (id, true); |
| } |
| int hoverProc (int id, boolean showTip) { |
| if (showTip) display.showToolTip (handle, toolTipText); |
| sendMouseEvent (SWT.MouseHover); |
| return 0; |
| } |
| /** |
| * 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(); |
| if (!OS.XtIsRealized (handle)) { |
| Shell shell = getShell (); |
| shell.realizeWidget (); |
| } |
| int xDisplay = OS.XtDisplay (handle); |
| if (xDisplay == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| int xWindow = OS.XtWindow (handle); |
| if (xWindow == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| int xGC = OS.XCreateGC (xDisplay, xWindow, 0, null); |
| if (xGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| OS.XSetGraphicsExposures (xDisplay, xGC, false); |
| 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.display = xDisplay; |
| data.drawable = xWindow; |
| XColor foreground = new XColor (); |
| foreground.pixel = getForegroundPixel (); |
| data.foreground = foreground; |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| XColor background = new XColor (); |
| background.pixel = control.getBackgroundPixel (); |
| data.background = background; |
| data.backgroundImage = control.backgroundImage; |
| data.font = font; |
| int [] argList = {OS.XmNcolormap, 0}; |
| OS.XtGetValues (handle, argList, argList.length / 2); |
| data.colormap = argList [1]; |
| } |
| return xGC; |
| } |
| /** |
| * 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 xGC, GCData data) { |
| checkWidget (); |
| int xDisplay = 0; |
| if (data != null) xDisplay = data.display; |
| if (xDisplay == 0 && handle != 0) xDisplay = OS.XtDisplay (handle); |
| if (xDisplay == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| OS.XFreeGC (xDisplay, xGC); |
| } |
| /** |
| * 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 (); |
| } |
| boolean isFocusAncestor (Control control) { |
| while (control != null && control != this && !(control instanceof Shell)) { |
| control = control.parent; |
| } |
| return control == this; |
| } |
| /** |
| * 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 (); |
| } |
| /** |
| * 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 == 1 || size.y == 1) { |
| return false; |
| } |
| control = control.parent; |
| } |
| return true; |
| } |
| 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, null); |
| 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, null); |
| 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(); |
| return getVisible () && parent.isVisible (); |
| } |
| void manageChildren () { |
| OS.XtSetMappedWhenManaged (handle, false); |
| OS.XtManageChild (handle); |
| int [] argList3 = {OS.XmNborderWidth, 0}; |
| OS.XtGetValues (handle, argList3, argList3.length / 2); |
| OS.XtResizeWidget (handle, 1, 1, argList3 [1]); |
| OS.XtSetMappedWhenManaged (handle, true); |
| } |
| 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 (control != null) { |
| if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (parent != control.parent) return; |
| } |
| setZOrder (control, true); |
| } |
| /** |
| * 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 (control != null) { |
| if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (parent != control.parent) return; |
| } |
| setZOrder (control, false); |
| } |
| void overrideTranslations () { |
| OS.XtOverrideTranslations (handle, display.tabTranslations); |
| OS.XtOverrideTranslations (handle, display.arrowTranslations); |
| int focusHandle = focusHandle (); |
| if (handle != focusHandle) { |
| OS.XtOverrideTranslations (focusHandle, display.tabTranslations); |
| OS.XtOverrideTranslations (focusHandle, display.arrowTranslations); |
| } |
| } |
| /** |
| * 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)); |
| } |
| void propagateChildren (boolean enabled) { |
| propagateWidget (enabled); |
| } |
| void propagateWidget (boolean enabled) { |
| int xCursor = enabled && cursor != null ? cursor.handle : OS.None; |
| propagateHandle (enabled, handle, xCursor); |
| } |
| /** |
| * 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; |
| } |
| void realizeChildren () { |
| if (isEnabled ()) { |
| if (cursor != null) { |
| int xWindow = OS.XtWindow (handle); |
| if (xWindow == 0) return; |
| int xDisplay = OS.XtDisplay (handle); |
| if (xDisplay == 0) return; |
| OS.XDefineCursor (xDisplay, xWindow, cursor.handle); |
| OS.XFlush (xDisplay); |
| } |
| } else { |
| propagateWidget (false); |
| } |
| if ((state & PARENT_BACKGROUND) != 0) { |
| setParentBackground (); |
| } |
| } |
| /** |
| * 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(); |
| redrawWidget (0, 0, 0, 0, true, false, false); |
| } |
| /** |
| * 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) { |
| redrawWidget (x, y, width, height, false, all, false); |
| } |
| } |
| void redrawChildren () { |
| } |
| void redrawWidget (int x, int y, int width, int height, boolean redrawAll, boolean allChildren, boolean trim) { |
| redrawHandle (x, y, width, height, redrawAll, handle); |
| } |
| void releaseHandle () { |
| super.releaseHandle (); |
| parent = null; |
| } |
| void releaseParent () { |
| parent.removeControl (this); |
| } |
| void releaseWidget () { |
| super.releaseWidget (); |
| /* |
| * Restore the default font for the widget in case the |
| * application disposes the widget font in the dispose |
| * callback. If a font is disposed while it is still |
| * in use in the widget, Motif GP's. |
| */ |
| int fontList = defaultFont ().handle; |
| if (font.handle != fontList) { |
| int fontHandle = fontHandle (); |
| int [] argList2 = {OS.XmNfontList, fontList}; |
| OS.XtSetValues (fontHandle, argList2, argList2.length / 2); |
| OS.XmImSetValues (fontHandle, argList2, argList2.length / 2); |
| } |
| display.releaseToolTipHandle (handle); |
| toolTipText = null; |
| if (menu != null && !menu.isDisposed ()) { |
| menu.dispose (); |
| } |
| menu = null; |
| cursor = null; |
| if (!hasIMSupport()) { |
| OS.XmImUnregister (handle); |
| int focusHandle = focusHandle (); |
| if (handle != focusHandle) { |
| OS.XmImUnregister (focusHandle); |
| } |
| } |
| layoutData = 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 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 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 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 sendDragEvent (int button, int stateMask, int x, int y, boolean isStateMask) { |
| Event event = new Event (); |
| event.button = button; |
| event.x = x; |
| event.y = y; |
| if (isStateMask) { |
| event.stateMask = stateMask; |
| } else { |
| setInputState (event, stateMask); |
| } |
| postEvent (SWT.DragDetect, event); |
| if (isDisposed ()) return false; |
| return event.doit; |
| } |
| void sendFocusEvent (int type) { |
| Display display = this.display; |
| if (type == SWT.FocusIn) { |
| Control focusedCombo = display.focusedCombo; |
| display.focusedCombo = null; |
| if (focusedCombo != null && focusedCombo != this && !focusedCombo.isDisposed ()) { |
| display.sendFocusEvent (focusedCombo, SWT.FocusOut); |
| } |
| } |
| display.sendFocusEvent (this, type); |
| } |
| void sendHelpEvent (int callData) { |
| Control control = this; |
| while (control != null) { |
| if (control.hooks (SWT.Help)) { |
| control.postEvent (SWT.Help); |
| return; |
| } |
| control = control.parent; |
| } |
| } |
| boolean sendMouseEvent (int type) { |
| if (!hooks (type) && !filters (type)) return true; |
| int xDisplay = OS.XtDisplay (handle), xWindow = OS.XtWindow (handle); |
| int [] windowX = new int [1], windowY = new int [1], mask = new int [1], unused = new int [1]; |
| OS.XQueryPointer (xDisplay, xWindow, unused, unused, unused, unused, windowX, windowY, mask); |
| return sendMouseEvent (type, 0, 0, 0, false, 0, windowX [0], windowY [0], mask [0]); |
| } |
| boolean sendMouseEvent (int type, int button, int count, int detail, boolean send, int time, int x, int y, int state) { |
| // if (!hooks (type) && !filters (type)) return true; |
| Event event = new Event (); |
| event.time = time; |
| event.button = button; |
| event.count = count; |
| event.detail = detail; |
| event.x = x; |
| event.y = y; |
| setInputState (event, state); |
| if (send) { |
| sendEvent (type, event); |
| if (isDisposed ()) return false; |
| } else { |
| postEvent (type, event); |
| } |
| return event.doit; |
| } |
| boolean sendMouseEvent (int type, XButtonEvent xEvent) { |
| int button = xEvent.button; |
| switch (button) { |
| case 4: |
| case 5: |
| /* Use MouseDown button 4 and 5 to emulated MouseWheel */ |
| if (type != SWT.MouseDown) return true; |
| type = SWT.MouseWheel; |
| if (!hooks (type) && !filters (type)) return true; |
| short [] x_root = new short [1], y_root = new short [1]; |
| OS.XtTranslateCoords (handle, (short) 0, (short) 0, x_root, y_root); |
| int x = xEvent.x_root - x_root [0], y = xEvent.y_root - y_root [0]; |
| int count = button == 4 ? 3 : -3; |
| Control control = this; |
| Shell shell = getShell (); |
| do { |
| if (!control.sendMouseEvent (type, 0, count, SWT.SCROLL_LINE, true, xEvent.time, x, y, xEvent.state)) { |
| return false; |
| } |
| if (control == shell) break; |
| control = control.parent; |
| OS.XtTranslateCoords (control.handle, (short) 0, (short) 0, x_root, y_root); |
| x = xEvent.x_root - x_root [0]; |
| y = xEvent.y_root - y_root [0]; |
| } while (control != null); |
| return true; |
| case 6: |
| button = 4; |
| break; |
| case 7: |
| button = 5; |
| break; |
| } |
| if (!hooks (type) && !filters (type)) return true; |
| short [] x_root = new short [1], y_root = new short [1]; |
| OS.XtTranslateCoords (handle, (short) 0, (short) 0, x_root, y_root); |
| int x = xEvent.x_root - x_root [0], y = xEvent.y_root - y_root [0]; |
| return sendMouseEvent (type, button, display.clickCount, 0, false, xEvent.time, x, y, xEvent.state); |
| } |
| boolean sendMouseEvent (int type, XCrossingEvent xEvent) { |
| if (!hooks (type) && !filters (type)) return true; |
| short [] x_root = new short [1], y_root = new short [1]; |
| OS.XtTranslateCoords (handle, (short) 0, (short) 0, x_root, y_root); |
| int x = xEvent.x_root - x_root [0], y = xEvent.y_root - y_root [0]; |
| return sendMouseEvent (type, 0, 0, 0, false, xEvent.time, x, y, xEvent.state); |
| } |
| boolean sendMouseEvent (int type, XMotionEvent xEvent) { |
| if (!hooks (type) && !filters (type)) return true; |
| short [] x_root = new short [1], y_root = new short [1]; |
| OS.XtTranslateCoords (handle, (short) 0, (short) 0, x_root, y_root); |
| int x = xEvent.x_root - x_root [0], y = xEvent.y_root - y_root [0]; |
| return sendMouseEvent (type, 0, 0, 0, false, xEvent.time, x, y, xEvent.state); |
| } |
| void setBackground () { |
| if ((state & PARENT_BACKGROUND) != 0 && (state & BACKGROUND) == 0 && backgroundImage == null) { |
| setParentBackground (); |
| } else { |
| if (backgroundImage != null) { |
| int [] argList = {OS.XmNbackgroundPixmap, backgroundImage.pixmap}; |
| OS.XtSetValues (handle, argList, argList.length / 2); |
| } else { |
| /* Ensure the resource value changes, otherwise XtSetValues() does nothing */ |
| int pixel = getBackgroundPixel (); |
| setBackgroundPixel (pixel + 1); |
| setBackgroundPixel (pixel); |
| } |
| } |
| redrawWidget (0, 0, 0, 0, true, false, false); |
| } |
| /** |
| * 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) { |
| state &= ~BACKGROUND; |
| setBackgroundPixel (defaultBackground ()); |
| } else { |
| if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| state |= BACKGROUND; |
| setBackgroundPixel (color.handle.pixel); |
| } |
| if ((state & PARENT_BACKGROUND) != 0 && (state & BACKGROUND) == 0 && backgroundImage == null) { |
| setParentBackground (); |
| redrawWidget (0, 0, 0, 0, true, false, false); |
| } |
| redrawChildren (); |
| } |
| /** |
| * 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 && image.isDisposed ()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| if (image == backgroundImage) return; |
| this.backgroundImage = image; |
| int pixmap = image != null ? image.pixmap : OS.XmUNSPECIFIED_PIXMAP; |
| int [] argList = {OS.XmNbackgroundPixmap, pixmap}; |
| OS.XtSetValues (handle, argList, argList.length / 2); |
| if ((state & PARENT_BACKGROUND) != 0 && (state & BACKGROUND) == 0 && backgroundImage == null) { |
| setParentBackground (); |
| redrawWidget (0, 0, 0, 0, true, false, false); |
| } |
| redrawChildren (); |
| } |
| void setBackgroundPixel (int pixel) { |
| int [] argList = {OS.XmNforeground, 0, OS.XmNhighlightColor, 0}; |
| OS.XtGetValues (handle, argList, argList.length / 2); |
| OS.XmChangeColor (handle, pixel); |
| OS.XtSetValues (handle, argList, argList.length / 2); |
| } |
| boolean setBounds (int x, int y, int width, int height, boolean move, boolean resize) { |
| int topHandle = topHandle (); |
| if (move && resize) { |
| int [] argList = { |
| OS.XmNx, 0, /* 1 */ |
| OS.XmNy, 0, /* 3 */ |
| OS.XmNwidth, 0, /* 5 */ |
| OS.XmNheight, 0, /* 7 */ |
| OS.XmNborderWidth, 0, /* 9 */ |
| }; |
| OS.XtGetValues (topHandle, argList, argList.length / 2); |
| /* |
| * Feature in Motif. Motif will not allow a window |
| * to have a zero width or zero height. The fix is |
| * to ensure these values are never zero. |
| */ |
| width = Math.max (width - (argList [9] * 2), 1); |
| height = Math.max (height - (argList [9] * 2), 1); |
| boolean sameOrigin = (x == (short) argList [1]) && (y == (short) argList [3]); |
| boolean sameExtent = (width == argList [5]) && (height == argList [7]); |
| if (sameOrigin && sameExtent) return false; |
| if (redrawWindow != 0) { |
| int xDisplay = OS.XtDisplay (handle); |
| OS.XResizeWindow (xDisplay, redrawWindow, width, height); |
| } |
| OS.XtConfigureWidget (topHandle, x, y, width, height, argList [9]); |
| updateIM (); |
| if (!sameOrigin) { |
| Control control = findBackgroundControl (); |
| if (control != null && control.backgroundImage != null) { |
| if (isVisible ()) redrawWidget (0, 0, 0, 0, true, true, true); |
| } |
| sendEvent (SWT.Move); |
| } |
| if (!sameExtent) sendEvent (SWT.Resize); |
| return true; |
| } |
| if (move) { |
| int [] argList = {OS.XmNx, 0, OS.XmNy, 0}; |
| OS.XtGetValues (topHandle, argList, argList.length / 2); |
| if (x == (short) argList [1] && y == (short) argList [3]) return false; |
| OS.XtMoveWidget (topHandle, x, y); |
| Control control = findBackgroundControl (); |
| if (control != null && control.backgroundImage != null) { |
| if (isVisible ()) redrawWidget (0, 0, 0, 0, true, true, true); |
| } |
| sendEvent (SWT.Move); |
| return true; |
| } |
| if (resize) { |
| int [] argList = {OS.XmNwidth, 0, OS.XmNheight, 0, OS.XmNborderWidth, 0}; |
| OS.XtGetValues (topHandle, argList, argList.length / 2); |
| /* |
| * Feature in Motif. Motif will not allow a window |
| * to have a zero width or zero height. The fix is |
| * to ensure these values are never zero. |
| */ |
| width = Math.max (width - (argList [5] * 2), 1); |
| height = Math.max (height - (argList [5] * 2), 1); |
| if (width == argList [1] && height == argList [3]) return false; |
| if (redrawWindow != 0) { |
| int xDisplay = OS.XtDisplay (handle); |
| OS.XResizeWindow (xDisplay, redrawWindow, width, height); |
| } |
| OS.XtResizeWidget (topHandle, width, height, argList [5]); |
| updateIM (); |
| sendEvent (SWT.Resize); |
| return true; |
| } |
| return false; |
| } |
| /** |
| * 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(); |
| setBounds (x, y, Math.max (0, width), Math.max (0, height), true, true); |
| } |
| /** |
| * 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(); |
| int display = OS.XtDisplay (handle); |
| if (display == 0) return; |
| if (capture) { |
| int window = OS.XtWindow (handle); |
| if (window == 0) return; |
| OS.XGrabPointer ( |
| display, |
| window, |
| 0, |
| OS.ButtonPressMask | OS.ButtonReleaseMask | OS.PointerMotionMask, |
| OS.GrabModeAsync, |
| OS.GrabModeAsync, |
| OS.None, |
| OS.None, |
| OS.CurrentTime); |
| } else { |
| OS.XUngrabPointer (display, OS.CurrentTime); |
| } |
| } |
| /** |
| * 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 ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| this.cursor = cursor; |
| if (!isEnabled ()) { |
| if (this != getShell ()) return; |
| } |
| int xDisplay = OS.XtDisplay (handle); |
| if (xDisplay == 0) return; |
| int xWindow = OS.XtWindow (handle); |
| if (xWindow == 0) return; |
| if (cursor == null) { |
| OS.XUndefineCursor (xDisplay, xWindow); |
| } else { |
| if (cursor.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| OS.XDefineCursor (xDisplay, xWindow, cursor.handle); |
| } |
| OS.XFlush (xDisplay); |
| } |
| /** |
| * 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; |
| } |
| } |
| /** |
| * 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 (enabled == getEnabled ()) return; |
| Control control = null; |
| boolean fixFocus = false; |
| if (!enabled) { |
| if (display.focusEvent != SWT.FocusOut) { |
| control = display.getFocusControl (); |
| fixFocus = isFocusAncestor (control); |
| } |
| } |
| enableWidget (enabled); |
| if (fixFocus) fixFocus (control); |
| if (!enabled || (isEnabled () && enabled)) { |
| propagateChildren (enabled); |
| } |
| } |
| /** |
| * 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) font = defaultFont (); |
| if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| this.font = font; |
| |
| /* |
| * Feature in Motif. Setting the font in a widget |
| * can cause the widget to automatically resize in |
| * the OS. This behavior is unwanted. The fix is |
| * to force the widget to resize to original size |
| * after every font change. |
| */ |
| int [] argList1 = {OS.XmNwidth, 0, OS.XmNheight, 0, OS.XmNborderWidth, 0}; |
| OS.XtGetValues (handle, argList1, argList1.length / 2); |
| |
| /* Set the font list */ |
| int fontHandle = fontHandle (); |
| int [] argList2 = {OS.XmNfontList, font.handle}; |
| OS.XtSetValues (fontHandle, argList2, argList2.length / 2); |
| updateIM (); |
| |
| /* |
| * Feature in Motif. When XtSetValues() is used to restore the width and |
| * height of the widget, the new width and height are sometimes ignored. |
| * The fix is to use XtResizeWidget(). |
| */ |
| OS.XtResizeWidget (handle, argList1 [1], argList1 [3], argList1 [5]); |
| } |
| /** |
| * 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(); |
| if (color == null) { |
| state &= ~FOREGROUND; |
| setForegroundPixel (defaultForeground ()); |
| } else { |
| if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| state |= FOREGROUND; |
| setForegroundPixel (color.handle.pixel); |
| } |
| } |
| void setForegroundPixel (int pixel) { |
| int [] argList = {OS.XmNforeground, pixel}; |
| OS.XtSetValues (handle, argList, argList.length / 2); |
| } |
| /** |
| * 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(); |
| setBounds (x, y, 0, 0, true, false); |
| } |
| /** |
| * 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); |
| setBounds (location.x, location.y, 0, 0, true, false); |
| } |
| /** |
| * 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; |
| } |
| /** |
| * 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.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| return false; |
| } |
| void setParentBackground () { |
| setParentBackground (handle); |
| } |
| void setParentBackground (int widget) { |
| int xDisplay = OS.XtDisplay (widget); |
| if (xDisplay == 0) return; |
| int xWindow = OS.XtWindow (widget); |
| if (xWindow == 0) return; |
| OS.XSetWindowBackgroundPixmap (xDisplay, xWindow, OS.ParentRelative); |
| } |
| void setParentTraversal () { |
| /* |
| * When the parent was created with NO_FOCUS, XmNtraversalOn was |
| * set to false disallowing focus in the parent and all children. |
| * In order to allow the new child to take focus like other platforms, |
| * set XmNtraversalOn to true in the parent. |
| */ |
| if ((parent.style & SWT.NO_FOCUS) != 0) { |
| int parentHandle = parent.handle; |
| int [] argList = {OS.XmNtraversalOn, 0}; |
| OS.XtGetValues (parentHandle, argList, argList.length / 2); |
| if (argList [1] == 0) { |
| argList [1] = 1; |
| OS.XtSetValues (parentHandle, argList, argList.length / 2); |
| parent.overrideTranslations (); |
| } |
| } |
| } |
| boolean setRadioSelection (boolean value) { |
| return false; |
| } |
| /** |
| * If the argument is <code>false</code>, causes subsequent drawing |
| * operations in the receiver to be ignored. No drawing of any kind |
| * can occur in the receiver until the flag is set to true. |
| * Graphics operations that occurred while the flag was |
| * <code>false</code> are lost. When the flag is set to <code>true</code>, |
| * the entire widget is marked as needing to be redrawn. Nested calls |
| * to this method are stacked. |
| * <p> |
| * Note: This operation is a hint and may not be supported on some |
| * platforms or for some widgets. |
| * </p> |
| * |
| * @param redraw the new redraw state |
| * |
| * @exception 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(); |
| if (redraw) { |
| if (--drawCount == 0) { |
| if (redrawWindow != 0) { |
| int xDisplay = OS.XtDisplay (handle); |
| if (xDisplay == 0) return; |
| int xWindow = OS.XtWindow (handle); |
| if (xWindow == 0) return; |
| OS.XDestroyWindow (xDisplay, redrawWindow); |
| OS.XSelectInput (xDisplay, xWindow, OS.XtBuildEventMask (handle)); |
| redrawWindow = 0; |
| } |
| } |
| } else { |
| if (drawCount++ == 0) { |
| int xDisplay = OS.XtDisplay (handle); |
| if (xDisplay == 0) return; |
| int xWindow = OS.XtWindow (handle); |
| if (xWindow == 0) return; |
| Rectangle rect = getBounds(); |
| XSetWindowAttributes attributes = new XSetWindowAttributes (); |
| attributes.background_pixmap = OS.None; |
| attributes.event_mask = OS.ExposureMask; |
| int mask = OS.CWDontPropagate | OS.CWEventMask | OS.CWBackPixmap; |
| redrawWindow = OS.XCreateWindow (xDisplay, xWindow, 0, 0, rect.width, rect.height, |
| 0,OS.CopyFromParent, OS.CopyFromParent, OS.CopyFromParent, mask, attributes); |
| if (redrawWindow != 0) { |
| int mouseMask = OS.ButtonPressMask | OS.ButtonReleaseMask | |
| OS.LeaveWindowMask | OS.PointerMotionMask | |
| OS.PointerMotionMask | OS.PointerMotionHintMask | |
| OS.ButtonMotionMask | OS.Button1MotionMask | OS.Button2MotionMask | |
| OS.Button3MotionMask | OS.Button4MotionMask | OS.Button5MotionMask; |
| OS.XSelectInput (xDisplay, xWindow, OS.XtBuildEventMask (handle) & ~mouseMask); |
| OS.XRaiseWindow (xDisplay, redrawWindow); |
| OS.XMapWindow (xDisplay, redrawWindow); |
| } |
| } |
| } |
| } |
| /** |
| * 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); |
| int topHandle = topHandle (); |
| Shell shell = getShell (); |
| if (!OS.XtIsRealized (topHandle)) shell.realizeWidget (); |
| int xDisplay = OS.XtDisplay (topHandle); |
| if (xDisplay == 0) return; |
| int xWindow = OS.XtWindow (topHandle); |
| if (xWindow == 0) return; |
| if (region != null) { |
| OS.XShapeCombineRegion (xDisplay, xWindow, OS.ShapeBounding, 0, 0, region.handle, OS.ShapeSet); |
| } else { |
| OS.XShapeCombineMask (xDisplay, xWindow, OS.ShapeBounding, 0, 0, 0, OS.ShapeSet); |
| } |
| this.region = region; |
| } |
| boolean setTabGroupFocus (boolean next) { |
| return setTabItemFocus (next); |
| } |
| boolean setTabItemFocus (boolean next) { |
| if (!isShowing ()) return false; |
| 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(); |
| setBounds (0, 0, Math.max (0, width), Math.max (0, height), false, true); |
| } |
| /** |
| * 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); |
| setBounds (0, 0, size.x, size.y, false, true); |
| } |
| /** |
| * Sets the receiver's tool tip text to the argument, which |
| * may be null indicating that no tool tip text should be shown. |
| * |
| * @param string the new tool tip text (or null) |
| * |
| * @exception 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(); |
| display.setToolTipText (handle, toolTipText = string); |
| } |
| /** |
| * Marks the receiver as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param visible the new visibility state |
| * |
| * @exception 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 (); |
| int [] argList = {OS.XmNmappedWhenManaged, 0}; |
| OS.XtGetValues (topHandle, argList, argList.length / 2); |
| if ((argList [1] != 0) == visible) return; |
| Control control = null; |
| boolean fixFocus = false; |
| if (!visible) { |
| if (display.focusEvent != SWT.FocusOut) { |
| control = display.getFocusControl (); |
| fixFocus = isFocusAncestor (control); |
| } |
| } |
| OS.XtSetMappedWhenManaged (topHandle, visible); |
| if (fixFocus) fixFocus (control); |
| /* |
| * It is possible (but unlikely) that application code could |
| * have disposed the widget in the FocusOut event that is |
| * triggered by invoking fixFocus() if the widget being hidden |
| * has focus. If this happens, just return; |
| */ |
| if (isDisposed ()) return; |
| sendEvent (visible ? SWT.Show : SWT.Hide); |
| } |
| void setZOrder (Control control, boolean above) { |
| setZOrder (control, above, true); |
| } |
| void setZOrder (Control control, boolean above, boolean fixChildren) { |
| /* |
| * Feature in Xt. We cannot use XtMakeGeometryRequest() to |
| * restack widgets because this call can fail under certain |
| * conditions. For example, XtMakeGeometryRequest() answers |
| * XtGeometryNo when attempting to bring a child widget that |
| * is larger than the parent widget to the front. The fix |
| * is to use X calls instead. |
| */ |
| int topHandle1 = topHandle (); |
| int display = OS.XtDisplay (topHandle1); |
| if (display == 0) return; |
| if (!OS.XtIsRealized (topHandle1)) { |
| Shell shell = this.getShell (); |
| shell.realizeWidget (); |
| } |
| int window1 = OS.XtWindow (topHandle1); |
| if (window1 == 0) return; |
| int redrawWindow = fixChildren ? parent.redrawWindow : 0; |
| if (control == null && (!above || redrawWindow == 0)) { |
| if (above) { |
| OS.XRaiseWindow (display, window1); |
| if (fixChildren) parent.moveAbove (topHandle1, 0); |
| } else { |
| OS.XLowerWindow (display, window1); |
| if (fixChildren) parent.moveBelow (topHandle1, 0); |
| } |
| return; |
| } |
| int window2, topHandle2 = 0; |
| if (control != null) { |
| topHandle2 = control.topHandle (); |
| if (display != OS.XtDisplay (topHandle2)) return; |
| if (!OS.XtIsRealized (topHandle2)) { |
| Shell shell = control.getShell (); |
| shell.realizeWidget (); |
| } |
| window2 = OS.XtWindow (topHandle2); |
| } else { |
| window2 = redrawWindow; |
| } |
| if (window2 == 0) return; |
| XWindowChanges struct = new XWindowChanges (); |
| struct.sibling = window2; |
| struct.stack_mode = above ? OS.Above : OS.Below; |
| if (window2 == redrawWindow) struct.stack_mode = OS.Below; |
| /* |
| * Feature in X. If the receiver is a top level, XConfigureWindow () |
| * will fail (with a BadMatch error) for top level shells because top |
| * level shells are reparented by the window manager and do not share |
| * the same X window parent. This is the correct behavior but it is |
| * unexpected. The fix is to use XReconfigureWMWindow () instead. |
| * When the receiver is not a top level shell, XReconfigureWMWindow () |
| * behaves the same as XConfigureWindow (). |
| */ |
| int screen = OS.XDefaultScreen (display); |
| int flags = OS.CWStackMode | OS.CWSibling; |
| OS.XReconfigureWMWindow (display, window1, screen, flags, struct); |
| if (above) { |
| if (fixChildren) parent.moveAbove (topHandle1, topHandle2); |
| } else { |
| if (fixChildren) parent.moveBelow (topHandle1, topHandle2); |
| } |
| } |
| void showMenu (int x, int y) { |
| Event event = new Event (); |
| event.x = x; |
| event.y = y; |
| sendEvent (SWT.MenuDetect, event); |
| if (event.doit) { |
| if (menu != null && !menu.isDisposed ()) { |
| if (event.x != x || event.y != y) { |
| menu.setLocation (event.x, event.y); |
| } |
| menu.setVisible (true); |
| } |
| } |
| } |
| /** |
| * 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(); |
| short [] root_x = new short [1], root_y = new short [1]; |
| OS.XtTranslateCoords (handle, (short) 0, (short) 0, root_x, root_y); |
| return new Point (x - root_x [0], y - root_y [0]); |
| } |
| /** |
| * 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(); |
| short [] root_x = new short [1], root_y = new short [1]; |
| OS.XtTranslateCoords (handle, (short) x, (short) y, root_x, root_y); |
| return new Point (root_x [0], root_y [0]); |
| } |
| /** |
| * 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 translateAccelerator (char key, int keysym, XKeyEvent xEvent, boolean doit) { |
| return menuShell ().translateAccelerator (key, keysym, xEvent, doit); |
| } |
| 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 (char key, int keysym, XKeyEvent xEvent) { |
| if (key < 0x20) return false; |
| if (xEvent.state == 0) { |
| int code = traversalCode (key, xEvent); |
| if ((code & SWT.TRAVERSE_MNEMONIC) == 0) return false; |
| } else { |
| int mask = OS.ControlMask | OS.ShiftMask | OS.Mod1Mask; |
| if ((xEvent.state & mask) != OS.Mod1Mask) return false; |
| } |
| Decorations shell = menuShell (); |
| if (shell.isVisible () && shell.isEnabled ()) { |
| Event event = new Event(); |
| event.time = xEvent.time; |
| event.detail = SWT.TRAVERSE_MNEMONIC; |
| event.character = key; |
| event.keyCode = keysym; |
| if (setInputState (event, xEvent.state)) { |
| return translateMnemonic (event, null) || shell.translateMnemonic (event, this); |
| } |
| } |
| return false; |
| } |
| boolean translateTraversal (int key, XKeyEvent xEvent) { |
| int detail = SWT.TRAVERSE_NONE; |
| int code = traversalCode (key, xEvent); |
| boolean all = false; |
| switch (key) { |
| case OS.XK_Escape: { |
| all = true; |
| detail = SWT.TRAVERSE_ESCAPE; |
| break; |
| } |
| case OS.XK_KP_Enter: |
| case OS.XK_Return: { |
| all = true; |
| detail = SWT.TRAVERSE_RETURN; |
| break; |
| } |
| case OS.XK_Tab: { |
| boolean next = (xEvent.state & OS.ShiftMask) == 0; |
| detail = next ? SWT.TRAVERSE_TAB_NEXT : SWT.TRAVERSE_TAB_PREVIOUS; |
| break; |
| } |
| case OS.XK_Up: |
| case OS.XK_Left: |
| case OS.XK_Down: |
| case OS.XK_Right: { |
| boolean next = key == OS.XK_Down || key == OS.XK_Right; |
| detail = next ? SWT.TRAVERSE_ARROW_NEXT : SWT.TRAVERSE_ARROW_PREVIOUS; |
| break; |
| } |
| case OS.XK_Page_Up: |
| case OS.XK_Page_Down: { |
| all = true; |
| if ((xEvent.state & OS.ControlMask) == 0) return false; |
| detail = key == OS.XK_Page_Down ? 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 = xEvent.time; |
| if (!setKeyState (event, xEvent)) 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; |
| } |
| int traversalCode (int key, XKeyEvent xEvent) { |
| int [] argList = new int [] {OS.XmNtraversalOn, 0}; |
| OS.XtGetValues (handle, argList, argList.length / 2); |
| if (argList [1] == 0) return 0; |
| 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; |
| if (getNavigationType () == OS.XmNONE) { |
| code |= SWT.TRAVERSE_ARROW_NEXT | SWT.TRAVERSE_ARROW_PREVIOUS; |
| } |
| return code; |
| } |
| boolean traverse (Event event) { |
| 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 (next)) { |
| return true; |
| } |
| } |
| if (group.isDisposed ()) return false; |
| return group.setTabGroupFocus (next); |
| } |
| 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 (next)) return true; |
| } |
| } |
| return false; |
| } |
| boolean traversePage (boolean next) { |
| return false; |
| } |
| boolean traverseMnemonic (char key) { |
| return mnemonicHit (key); |
| } |
| 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(); |
| if (all) { |
| display.update (); |
| } else { |
| int display = OS.XtDisplay (handle); |
| if (display == 0) return; |
| int window = OS.XtWindow (handle); |
| if (window == 0) return; |
| int event = OS.XtMalloc (XEvent.sizeof); |
| OS.XSync (display, false); |
| OS.XSync (display, false); |
| while (OS.XCheckWindowEvent (display, window, OS.ExposureMask, event)) { |
| OS.XtDispatchEvent (event); |
| } |
| OS.XtFree (event); |
| } |
| } |
| void updateBackgroundMode () { |
| int oldState = state & PARENT_BACKGROUND; |
| checkBackground (); |
| if (oldState != (state & PARENT_BACKGROUND)) { |
| setBackground (); |
| } |
| } |
| void updateIM () { |
| if (!OS.IsDBLocale) return; |
| if (!hasFocus ()) return; |
| int[] argList2; |
| int ptr1 = 0, ptr2 = 0; |
| if (hasIMSupport ()) { |
| argList2 = new int[]{ |
| OS.XmNfontList, font.handle, |
| // OS.XmNforeground, getForegroundPixel (), |
| // OS.XmNbackground, getBackgroundPixel (), |
| }; |
| } else { |
| int x = 0, y = 0; |
| Font font = this.font; |
| Caret caret = getIMCaret (); |
| if (caret != null) { |
| x += caret.x + (caret.width <= 0 ? 2 : caret.width); |
| y += caret.y; |
| if (caret.font != null) font = caret.font; |
| } |
| y += getFontAscent (font.handle); |
| short [] point = new short[]{(short) x, (short) y}; |
| ptr1 = OS.XtMalloc (4); |
| OS.memmove (ptr1, point, 4); |
| int [] argList1 = {OS.XmNwidth, 0, OS.XmNheight, 0}; |
| OS.XtGetValues (handle, argList1, argList1.length / 2); |
| short [] rect = new short[]{0, 0, (short) argList1 [1], (short) argList1 [3]}; |
| ptr2 = OS.XtMalloc (8); |
| OS.memmove (ptr2, rect, 8); |
| /* |
| * Feature in Motif. The XmNarea resource has to be set after |
| * the XmNspotLocation. |
| */ |
| argList2 = new int[]{ |
| OS.XmNfontList, font.handle, |
| // OS.XmNforeground, getForegroundPixel (), |
| // OS.XmNbackground, getBackgroundPixel (), |
| OS.XmNspotLocation, ptr1, |
| OS.XmNarea, ptr2, |
| }; |
| } |
| OS.XmImSetValues (handle, argList2, argList2.length / 2); |
| int focusHandle = focusHandle (); |
| if (handle != focusHandle) { |
| OS.XmImSetValues (focusHandle, argList2, argList2.length / 2); |
| } |
| if (ptr1 != 0) OS.XtFree (ptr1); |
| if (ptr2 != 0) OS.XtFree (ptr2); |
| } |
| void updateLayout (boolean all) { |
| /* Do nothing */ |
| } |
| int XButtonPress (int w, int client_data, int call_data, int continue_to_dispatch) { |
| Display display = this.display; |
| display.hideToolTip (); |
| Shell shell = getShell (); |
| /* |
| * When a shell is created with SWT.ON_TOP and SWT.NO_FOCUS, |
| * do not activate the shell when the user clicks on the |
| * the client area or on the border or a control within the |
| * shell that does not take focus. |
| */ |
| if (((shell.style & SWT.ON_TOP) != 0) && (((shell.style & SWT.NO_FOCUS) == 0) || ((style & SWT.NO_FOCUS) == 0))) { |
| shell.forceActive(); |
| } |
| boolean dispatch = true, dragging = false; |
| XButtonEvent xEvent = new XButtonEvent (); |
| OS.memmove (xEvent, call_data, XButtonEvent.sizeof); |
| int clickTime = display.getDoubleClickTime (); |
| int lastTime = display.lastTime, eventTime = xEvent.time; |
| int lastButton = display.lastButton, eventButton = xEvent.button; |
| if (lastButton == eventButton && lastTime != 0 && Math.abs (lastTime - eventTime) <= clickTime) { |
| display.clickCount++; |
| } else { |
| display.clickCount = 1; |
| } |
| display.lastTime = eventTime == 0 ? 1 : eventTime; |
| display.lastButton = eventButton; |
| if (xEvent.button == 2) { |
| if ((state & DRAG_DETECT) != 0 && hooks (SWT.DragDetect)) { |
| boolean [] consume = new boolean [1]; |
| if (dragDetect (xEvent.x, xEvent.y, true, consume)) { |
| dragging = true; |
| dispatch = !consume [0]; |
| } |
| if (isDisposed ()) return 1; |
| } |
| } |
| if (!sendMouseEvent (SWT.MouseDown, xEvent)) dispatch = false; |
| if (isDisposed ()) return 1; |
| if (display.clickCount == 2) { |
| if (!sendMouseEvent (SWT.MouseDoubleClick, xEvent)) dispatch = false; |
| if (isDisposed ()) return 1; |
| // widget could be disposed at this point |
| } |
| if (dragging) { |
| sendDragEvent (xEvent.button, xEvent.state, xEvent.x, xEvent.y, false); |
| if (isDisposed ()) return 1; |
| } |
| if (xEvent.button == 3) { |
| if (menu != null || hooks (SWT.MenuDetect)) { |
| if (!isFocusControl ()) setFocus (); |
| } |
| showMenu (xEvent.x_root, xEvent.y_root); |
| if (isDisposed ()) return 1; |
| } |
| if (!shell.isDisposed ()) shell.setActiveControl (this); |
| if (!dispatch) { |
| OS.memmove (continue_to_dispatch, new int [1], 4); |
| return 1; |
| } |
| return 0; |
| } |
| int XButtonRelease (int w, int client_data, int call_data, int continue_to_dispatch) { |
| display.hideToolTip (); |
| XButtonEvent xEvent = new XButtonEvent (); |
| OS.memmove (xEvent, call_data, XButtonEvent.sizeof); |
| if (!sendMouseEvent (SWT.MouseUp, xEvent)) { |
| OS.memmove (continue_to_dispatch, new int [1], 4); |
| return 1; |
| } |
| return 0; |
| } |
| int XEnterWindow (int w, int client_data, int call_data, int continue_to_dispatch) { |
| XCrossingEvent xEvent = new XCrossingEvent (); |
| OS.memmove (xEvent, call_data, XCrossingEvent.sizeof); |
| if (xEvent.mode != OS.NotifyNormal && xEvent.mode != OS.NotifyUngrab) return 0; |
| if ((xEvent.state & (OS.Button1Mask | OS.Button2Mask | OS.Button3Mask)) != 0) return 0; |
| if (xEvent.subwindow != 0) return 0; |
| if (!sendMouseEvent (SWT.MouseEnter, xEvent)) { |
| OS.memmove (continue_to_dispatch, new int [1], 4); |
| return 1; |
| } |
| return 0; |
| } |
| int XExposure (int w, int client_data, int call_data, int continue_to_dispatch) { |
| if (!hooks (SWT.Paint) && !filters (SWT.Paint)) return 0; |
| XExposeEvent xEvent = new XExposeEvent (); |
| OS.memmove (xEvent, call_data, XExposeEvent.sizeof); |
| int xDisplay = OS.XtDisplay (handle); |
| if (xDisplay == 0) return 0; |
| int damageRgn = OS.XCreateRegion (); |
| OS.XtAddExposureToRegion (call_data, damageRgn); |
| Event event = new Event (); |
| event.count = xEvent.count; |
| event.x = xEvent.x; |
| event.y = xEvent.y; |
| event.width = xEvent.width; |
| event.height = xEvent.height; |
| GCData data = new GCData(); |
| data.damageRgn = damageRgn; |
| GC gc = event.gc = GC.motif_new(this, data); |
| OS.XSetRegion (xDisplay, gc.handle, damageRgn); |
| sendEvent (SWT.Paint, event); |
| event.gc = null; |
| gc.dispose (); |
| OS.XDestroyRegion(damageRgn); |
| return 0; |
| } |
| int XFocusChange (int w, int client_data, int call_data, int continue_to_dispatch) { |
| |
| /* Get the focus change event */ |
| XFocusChangeEvent xEvent = new XFocusChangeEvent (); |
| OS.memmove (xEvent, call_data, XFocusChangeEvent.sizeof); |
| |
| /* Ignore focus changes caused by grabbing and ungrabing */ |
| if (xEvent.mode != OS.NotifyNormal) return 0; |
| |
| /* Only process focus callbacks between windows */ |
| if (xEvent.detail != OS.NotifyAncestor && |
| xEvent.detail != OS.NotifyInferior && |
| xEvent.detail != OS.NotifyNonlinear) return 0; |
| |
| /* Process the focus change for the widget */ |
| Display display = this.display; |
| Shell shell = getShell (); |
| switch (xEvent.type) { |
| case OS.FocusIn: |
| xFocusIn (xEvent); |
| // widget could be disposed at this point |
| |
| /* |
| * 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 ()) { |
| shell.setActiveControl (this); |
| } |
| break; |
| case OS.FocusOut: |
| xFocusOut (xEvent); |
| // widget could be disposed at this point |
| |
| /* |
| * 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 ()) { |
| if (shell != display.getActiveShell ()) { |
| shell.setActiveControl (null); |
| } |
| } |
| break; |
| } |
| return 0; |
| } |
| int xFocusIn (XFocusChangeEvent xEvent) { |
| /* |
| * Bug in Motif. For some reason, when the widget font is |
| * not the default font and the widget loses focus, the |
| * X input method segment faults. A BadFont (invalid font |
| * parameter) error is printed. This problem also happens |
| * to XmText and XmTextField. The fix is to change the |
| * X input method font back to the default font when the |
| * widget loses focus and restore it when the widget gets |
| * focus. |
| */ |
| updateIM (); |
| if (!hasIMSupport ()) { |
| int focusHandle = OS.XtWindowToWidget (xEvent.display, xEvent.window); |
| OS.XmImSetFocusValues (focusHandle, null, 0); |
| } |
| sendFocusEvent (SWT.FocusIn); |
| return 0; |
| } |
| int xFocusOut (XFocusChangeEvent xEvent) { |
| int focusHandle = OS.XtWindowToWidget (xEvent.display, xEvent.window); |
| if (!hasIMSupport ()) OS.XmImUnsetFocus (focusHandle); |
| |
| /* |
| * Bug in Motif. For some reason, when the widget font is |
| * not the default font and the widget loses focus, the |
| * X input method segment faults. A BadFont (invalid font |
| * parameter) error is printed. This problem also happens |
| * to XmText and XmTextField. The fix is to change the |
| * X input method font back to the default font when the |
| * widget loses focus and restore it when the widget gets |
| * focus. |
| * |
| * NOTE: On AIX, changing the IM font when focus is lost because |
| * the shell was resized by the user causes the ConfigureNotify |
| * event for the shell to be lost. The event is not in the |
| * event queue and therefore not dispatched. The fix is to avoid |
| * the workaround for AIX. |
| */ |
| if (!OS.IsAIX) { |
| int fontList = defaultFont ().handle; |
| if (font.handle != fontList) { |
| int [] argList2 = {OS.XmNfontList, fontList}; |
| OS.XmImSetValues (focusHandle, argList2, argList2.length / 2); |
| } |
| } |
| |
| sendFocusEvent (SWT.FocusOut); |
| |
| /* Restore XmNtraversalOn if it was focus was forced */ |
| if (handle == 0) return 0; |
| if ((style & SWT.NO_FOCUS) != 0) { |
| int [] argList = new int [] {OS.XmNtraversalOn, 0}; |
| OS.XtGetValues (focusHandle, argList, argList.length / 2); |
| if (argList [1] != 0 && (state & FOCUS_FORCED) != 0) { |
| argList [1] = 0; |
| OS.XtSetValues (focusHandle, argList, argList.length / 2); |
| } |
| } |
| return 0; |
| } |
| int XKeyRelease (int w, int client_data, int call_data, int continue_to_dispatch) { |
| XKeyEvent xEvent = new XKeyEvent (); |
| OS.memmove (xEvent, call_data, XKeyEvent.sizeof); |
| if (menu != null && xEvent.state == OS.ShiftMask) { |
| byte [] buffer = new byte [1]; |
| int [] keysym = new int [1]; |
| OS.XLookupString (xEvent, buffer, buffer.length, keysym, null); |
| if (keysym [0] == OS.XK_F10) { |
| showMenu (xEvent.x_root, xEvent.y_root); |
| } |
| } |
| return super.XKeyRelease (w, client_data, call_data, continue_to_dispatch); |
| } |
| int XLeaveWindow (int w, int client_data, int call_data, int continue_to_dispatch) { |
| display.removeMouseHoverTimeOut (); |
| display.hideToolTip (); |
| XCrossingEvent xEvent = new XCrossingEvent (); |
| OS.memmove (xEvent, call_data, XCrossingEvent.sizeof); |
| if (xEvent.mode != OS.NotifyNormal && xEvent.mode != OS.NotifyUngrab) return 0; |
| if ((xEvent.state & (OS.Button1Mask | OS.Button2Mask | OS.Button3Mask)) != 0) return 0; |
| if (xEvent.subwindow != 0) return 0; |
| if (!sendMouseEvent (SWT.MouseExit, xEvent)) { |
| OS.memmove (continue_to_dispatch, new int [1], 4); |
| return 1; |
| } |
| return 0; |
| } |
| int XmNhelpCallback (int w, int client_data, int call_data) { |
| sendHelpEvent (call_data); |
| return 0; |
| } |
| int XPointerMotion (int w, int client_data, int call_data, int continue_to_dispatch) { |
| display.addMouseHoverTimeOut (handle); |
| XMotionEvent xEvent = new XMotionEvent (); |
| OS.memmove (xEvent, call_data, XMotionEvent.sizeof); |
| if (!sendMouseEvent (SWT.MouseMove, xEvent)) { |
| OS.memmove (continue_to_dispatch, new int [1], 4); |
| return 1; |
| } |
| return 0; |
| } |
| } |