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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Control.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Control.java | 3761 |
1 files changed, 0 insertions, 3761 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Control.java b/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Control.java deleted file mode 100755 index 0a10bccddb..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Control.java +++ /dev/null @@ -1,3761 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.internal.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> - * @noextend This class is not intended to be subclassed by clients. - */ -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 SWT#LEFT_TO_RIGHT - * @see SWT#RIGHT_TO_LEFT - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Control (Composite parent, int style) { - super (parent, style); - this.parent = parent; - createWidget (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. - * <p> - * Note: This operation is a hint and may be overridden by the platform. - * For example, on some versions of Windows the background of a TabFolder, - * is a gradient rather than a solid color. - * </p> - * @return the background color - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public Color getBackground () { - checkWidget(); - Control control = findBackgroundControl (); - if (control == null) control = this; - return Color.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 the default tool tip for the - * control will be shown. For a control that has a default - * tool tip, such as the Tree control on Windows, setting - * the tool tip text to an empty string replaces the default, - * causing no tool tip text to be shown. - * <p> - * The mnemonic indicator (character '&') is not displayed in a tool tip. - * To display a single '&' in the tool tip, the character '&' can be - * escaped by doubling it in the string. - * </p> - * - * @param string the new tool tip text (or null) - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setToolTipText (String string) { - checkWidget(); - 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; -} -} |