| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| import org.eclipse.swt.internal.wpf.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.accessibility.*; |
| |
| //TEMPORARY CODE |
| import org.eclipse.swt.effects.*; |
| |
| /** |
| * Control is the abstract superclass of all windowed user interface classes. |
| * <p> |
| * <dl> |
| * <dt><b>Styles:</b> |
| * <dd>BORDER</dd> |
| * <dd>LEFT_TO_RIGHT, RIGHT_TO_LEFT</dd> |
| * <dt><b>Events:</b> |
| * <dd>DragDetect, FocusIn, FocusOut, Help, KeyDown, KeyUp, MenuDetect, MouseDoubleClick, MouseDown, MouseEnter, |
| * MouseExit, MouseHover, MouseUp, MouseMove, Move, Paint, Resize, Traverse</dd> |
| * </dl> |
| * </p><p> |
| * Only one of LEFT_TO_RIGHT or RIGHT_TO_LEFT may be specified. |
| * </p><p> |
| * IMPORTANT: This class is intended to be subclassed <em>only</em> |
| * within the SWT implementation. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#control">Control snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| |
| public abstract class Control extends Widget implements Drawable { |
| Cursor cursor; |
| Menu menu; |
| String toolTipText; |
| Object layoutData; |
| Accessible accessible; |
| Image backgroundImage; |
| Region region; |
| // int drawCount; |
| int foreground, background; |
| int x, y, width, height; |
| Font font; |
| Composite parent; |
| |
| /** |
| * Prevents uninitialized instances from being created outside the package. |
| */ |
| Control () { |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#BORDER |
| * @see SWT#LEFT_TO_RIGHT |
| * @see SWT#RIGHT_TO_LEFT |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Control (Composite parent, int style) { |
| super (parent, style); |
| this.parent = parent; |
| createWidget (); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is moved or resized, by sending |
| * it one of the messages defined in the <code>ControlListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ControlListener |
| * @see #removeControlListener |
| */ |
| public void addControlListener(ControlListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Resize,typedListener); |
| addListener (SWT.Move,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when a drag gesture occurs, by sending it |
| * one of the messages defined in the <code>DragDetectListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see DragDetectListener |
| * @see #removeDragDetectListener |
| * |
| * @since 3.3 |
| */ |
| public void addDragDetectListener (DragDetectListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.DragDetect,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control gains or loses focus, by sending |
| * it one of the messages defined in the <code>FocusListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see FocusListener |
| * @see #removeFocusListener |
| */ |
| public void addFocusListener (FocusListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.FocusIn,typedListener); |
| addListener (SWT.FocusOut,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when help events are generated for the control, |
| * by sending it one of the messages defined in the |
| * <code>HelpListener</code> interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see HelpListener |
| * @see #removeHelpListener |
| */ |
| public void addHelpListener (HelpListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Help, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when keys are pressed and released on the system keyboard, by sending |
| * it one of the messages defined in the <code>KeyListener</code> |
| * interface. |
| * <p> |
| * When a key listener is added to a control, the control |
| * will take part in widget traversal. By default, all |
| * traversal keys (such as the tab key and so on) are |
| * delivered to the control. In order for a control to take |
| * part in traversal, it should listen for traversal events. |
| * Otherwise, the user can traverse into a control but not |
| * out. Note that native controls such as table and tree |
| * implement key traversal in the operating system. It is |
| * not necessary to add traversal listeners for these controls, |
| * unless you want to override the default traversal. |
| * </p> |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see KeyListener |
| * @see #removeKeyListener |
| */ |
| public void addKeyListener (KeyListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.KeyUp,typedListener); |
| addListener (SWT.KeyDown,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the platform-specific context menu trigger |
| * has occurred, by sending it one of the messages defined in |
| * the <code>MenuDetectListener</code> interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MenuDetectListener |
| * @see #removeMenuDetectListener |
| * |
| * @since 3.3 |
| */ |
| public void addMenuDetectListener (MenuDetectListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.MenuDetect, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when mouse buttons are pressed and released, by sending |
| * it one of the messages defined in the <code>MouseListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseListener |
| * @see #removeMouseListener |
| */ |
| public void addMouseListener (MouseListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.MouseDown,typedListener); |
| addListener (SWT.MouseUp,typedListener); |
| addListener (SWT.MouseDoubleClick,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the mouse passes or hovers over controls, by sending |
| * it one of the messages defined in the <code>MouseTrackListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseTrackListener |
| * @see #removeMouseTrackListener |
| */ |
| public void addMouseTrackListener (MouseTrackListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.MouseEnter,typedListener); |
| addListener (SWT.MouseExit,typedListener); |
| addListener (SWT.MouseHover,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the mouse moves, by sending it one of the |
| * messages defined in the <code>MouseMoveListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseMoveListener |
| * @see #removeMouseMoveListener |
| */ |
| public void addMouseMoveListener (MouseMoveListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.MouseMove,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the mouse wheel is scrolled, by sending |
| * it one of the messages defined in the |
| * <code>MouseWheelListener</code> interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseWheelListener |
| * @see #removeMouseWheelListener |
| * |
| * @since 3.3 |
| */ |
| public void addMouseWheelListener (MouseWheelListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.MouseWheel, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver needs to be painted, by sending it |
| * one of the messages defined in the <code>PaintListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see PaintListener |
| * @see #removePaintListener |
| */ |
| public void addPaintListener (PaintListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Paint,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when traversal events occur, by sending it |
| * one of the messages defined in the <code>TraverseListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TraverseListener |
| * @see #removeTraverseListener |
| */ |
| public void addTraverseListener (TraverseListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Traverse,typedListener); |
| } |
| |
| void addWidget () { |
| parent.addChild (this); |
| } |
| |
| int borderHandle () { |
| return handle; |
| } |
| |
| void checkBackground () { |
| Shell shell = getShell (); |
| if (this == shell) return; |
| state &= ~PARENT_BACKGROUND; |
| Composite composite = parent; |
| do { |
| int mode = composite.backgroundMode; |
| if (mode != 0) { |
| if (mode == SWT.INHERIT_DEFAULT) { |
| Control control = this; |
| do { |
| if ((control.state & THEME_BACKGROUND) == 0) { |
| return; |
| } |
| control = control.parent; |
| } while (control != composite); |
| } |
| state |= PARENT_BACKGROUND; |
| return; |
| } |
| if (composite == shell) break; |
| composite = composite.parent; |
| } while (true); |
| } |
| |
| void checkBorder () { |
| if (getBorderWidth () == 0) style &= ~SWT.BORDER; |
| } |
| |
| void checkBuffered () { |
| style |= SWT.DOUBLE_BUFFERED; |
| } |
| |
| /** |
| * Returns the preferred size of the receiver. |
| * <p> |
| * The <em>preferred size</em> of a control is the size that it would |
| * best be displayed at. The width hint and height hint arguments |
| * allow the caller to ask a control questions such as "Given a particular |
| * width, how high does the control need to be to show all of the contents?" |
| * To indicate that the caller does not wish to constrain a particular |
| * dimension, the constant <code>SWT.DEFAULT</code> is passed for the hint. |
| * </p> |
| * |
| * @param wHint the width hint (can be <code>SWT.DEFAULT</code>) |
| * @param hHint the height hint (can be <code>SWT.DEFAULT</code>) |
| * @return the preferred size of the control |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Layout |
| * @see #getBorderWidth |
| * @see #getBounds |
| * @see #getSize |
| * @see #pack(boolean) |
| * @see "computeTrim, getClientArea for controls that implement them" |
| */ |
| public Point computeSize (int wHint, int hHint) { |
| return computeSize (wHint, hHint, true); |
| } |
| |
| /** |
| * Returns the preferred size of the receiver. |
| * <p> |
| * The <em>preferred size</em> of a control is the size that it would |
| * best be displayed at. The width hint and height hint arguments |
| * allow the caller to ask a control questions such as "Given a particular |
| * width, how high does the control need to be to show all of the contents?" |
| * To indicate that the caller does not wish to constrain a particular |
| * dimension, the constant <code>SWT.DEFAULT</code> is passed for the hint. |
| * </p><p> |
| * If the changed flag is <code>true</code>, it indicates that the receiver's |
| * <em>contents</em> have changed, therefore any caches that a layout manager |
| * containing the control may have been keeping need to be flushed. When the |
| * control is resized, the changed flag will be <code>false</code>, so layout |
| * manager caches can be retained. |
| * </p> |
| * |
| * @param wHint the width hint (can be <code>SWT.DEFAULT</code>) |
| * @param hHint the height hint (can be <code>SWT.DEFAULT</code>) |
| * @param changed <code>true</code> if the control's contents have changed, and <code>false</code> otherwise |
| * @return the preferred size of the control. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Layout |
| * @see #getBorderWidth |
| * @see #getBounds |
| * @see #getSize |
| * @see #pack(boolean) |
| * @see "computeTrim, getClientArea for controls that implement them" |
| */ |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| return computeSize (handle, wHint, hHint, changed); |
| } |
| |
| Point computeSize (int handle, int wHint, int hHint, boolean changed) { |
| int width = wHint, height = hHint; |
| if (wHint == SWT.DEFAULT) width = 0x7FFFFFFF; |
| if (hHint == SWT.DEFAULT) height = 0x7FFFFFFF; |
| width = Math.max (0, width); |
| height = Math.max (0, height); |
| int availSize = OS.gcnew_Size ((double)width, (double)height); |
| if (availSize == 0) error (SWT.ERROR_NO_HANDLES); |
| double requestWidth = OS.FrameworkElement_Width (handle); |
| if (requestWidth >= 0) { |
| int widthDP = OS.FrameworkElement_WidthProperty (); |
| OS.DependencyObject_ClearValue (handle, widthDP); |
| OS.GCHandle_Free (widthDP); |
| } |
| double requestHeight = OS.FrameworkElement_Height (handle); |
| if (requestHeight >= 0) { |
| int heightDP = OS.FrameworkElement_HeightProperty (); |
| OS.DependencyObject_ClearValue (handle, heightDP); |
| OS.GCHandle_Free (heightDP); |
| } |
| OS.UIElement_Measure (handle, availSize); |
| OS.GCHandle_Free (availSize); |
| int size = OS.UIElement_DesiredSize (handle); |
| width = (int) OS.Size_Width (size); |
| height = (int) OS.Size_Height (size); |
| OS.GCHandle_Free (size); |
| if (requestWidth >= 0) OS.FrameworkElement_Width (handle, requestWidth); |
| if (requestHeight >= 0) OS.FrameworkElement_Height (handle, requestHeight); |
| if (wHint != SWT.DEFAULT) width = wHint; |
| if (hHint != SWT.DEFAULT) height = hHint; |
| return new Point (width, height); |
| } |
| |
| Control computeTabGroup () { |
| if (isTabGroup ()) return this; |
| return parent.computeTabGroup (); |
| } |
| |
| Control computeTabRoot () { |
| Control [] tabList = parent._getTabList (); |
| if (tabList != null) { |
| int index = 0; |
| while (index < tabList.length) { |
| if (tabList [index] == this) break; |
| index++; |
| } |
| if (index == tabList.length) { |
| if (isTabGroup ()) return this; |
| } |
| } |
| return parent.computeTabRoot (); |
| } |
| |
| Control [] computeTabList () { |
| if (isTabGroup ()) { |
| if (getVisible () && getEnabled ()) { |
| return new Control [] {this}; |
| } |
| } |
| return new Control [0]; |
| } |
| |
| void createWidget () { |
| state |= DRAG_DETECT; |
| checkOrientation (parent); |
| super.createWidget (); |
| checkBackground (); |
| checkBuffered (); |
| setClipping (); |
| if (defaultBackground () != 0 || (state & PARENT_BACKGROUND) != 0) { |
| setBackground (); |
| } |
| } |
| |
| /** |
| * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED |
| */ |
| public void setAlpha(int alpha) { |
| checkWidget (); |
| OS.UIElement_Opacity (handle, (alpha & 0xFF) / (double)0xFF); |
| } |
| |
| void setClipping () { |
| //accept default clipping |
| } |
| |
| int defaultBackground () { |
| return 0; |
| } |
| |
| Font defaultFont () { |
| return display.getSystemFont (); |
| } |
| |
| int defaultForeground () { |
| return display.getSystemColor (SWT.COLOR_BLACK).handle; |
| } |
| |
| void deregister () { |
| display.removeWidget (handle); |
| } |
| |
| void destroyWidget () { |
| parent.removeChild (this); |
| releaseHandle (); |
| } |
| |
| /** |
| * Detects a drag and drop gesture. This method is used |
| * to detect a drag gesture when called from within a mouse |
| * down listener. |
| * |
| * <p>By default, a drag is detected when the gesture |
| * occurs anywhere within the client area of a control. |
| * Some controls, such as tables and trees, override this |
| * behavior. In addition to the operating system specific |
| * drag gesture, they require the mouse to be inside an |
| * item. Custom widget writers can use <code>setDragDetect</code> |
| * to disable the default detection, listen for mouse down, |
| * and then call <code>dragDetect()</code> from within the |
| * listener to conditionally detect a drag. |
| * </p> |
| * |
| * @param event the mouse down event |
| * |
| * @return <code>true</code> if the gesture occurred, and <code>false</code> otherwise. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT when the event is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see DragDetectListener |
| * @see #addDragDetectListener |
| * |
| * @see #getDragDetect |
| * @see #setDragDetect |
| * |
| * @since 3.3 |
| */ |
| public boolean dragDetect (Event event) { |
| checkWidget (); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return dragDetect (event.button, event.count, event.stateMask, event.x, event.y); |
| } |
| |
| /** |
| * Detects a drag and drop gesture. This method is used |
| * to detect a drag gesture when called from within a mouse |
| * down listener. |
| * |
| * <p>By default, a drag is detected when the gesture |
| * occurs anywhere within the client area of a control. |
| * Some controls, such as tables and trees, override this |
| * behavior. In addition to the operating system specific |
| * drag gesture, they require the mouse to be inside an |
| * item. Custom widget writers can use <code>setDragDetect</code> |
| * to disable the default detection, listen for mouse down, |
| * and then call <code>dragDetect()</code> from within the |
| * listener to conditionally detect a drag. |
| * </p> |
| * |
| * @param event the mouse down event |
| * |
| * @return <code>true</code> if the gesture occurred, and <code>false</code> otherwise. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT when the event is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see DragDetectListener |
| * @see #addDragDetectListener |
| * |
| * @see #getDragDetect |
| * @see #setDragDetect |
| * |
| * @since 3.3 |
| */ |
| public boolean dragDetect (MouseEvent event) { |
| checkWidget (); |
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return dragDetect (event.button, event.count, event.stateMask, event.x, event.y); |
| } |
| |
| boolean dragDetect (int button, int count, int stateMask, int x, int y) { |
| if (button != 1 || count != 1) return false; |
| boolean dragging = dragDetect (x, y, false); |
| if (dragging) return sendDragEvent (button, stateMask, x, y); |
| return false; |
| } |
| |
| void dragHandler () { |
| int frame = display.dragDetectFrame = OS.gcnew_DispatcherFrame (); |
| OS.Dispatcher_PushFrame (frame); |
| OS.GCHandle_Free (frame); |
| OS.GCHandle_Free (display.dragRect); |
| if (display.dragMouseDown != 0) OS.GCHandle_Free (display.dragMouseDown); |
| display.dragMouseDown = display.dragDetectFrame = display.dragRect = 0; |
| } |
| |
| boolean dragDetect (double x, double y, boolean post) { |
| display.dragging = false; |
| double minH = OS.SystemParameters_MinimumHorizontalDragDistance (); |
| double minV = OS.SystemParameters_MinimumVerticalDragDistance (); |
| display.dragRect = OS.gcnew_Rect(x - minH, y - minV, minH * 2, minV * 2); |
| if (post) { |
| int handler = OS.gcnew_NoArgsDelegate (jniRef, "dragHandler"); |
| int operation = OS.Dispatcher_BeginInvoke (display.dispatcher, OS.DispatcherPriority_Send, handler); |
| OS.GCHandle_Free (operation); |
| OS.GCHandle_Free (handler); |
| } else { |
| dragHandler (); |
| } |
| return display.dragging; |
| } |
| |
| void enableWidget (boolean enabled) { |
| OS.UIElement_IsEnabled (handle, enabled); |
| } |
| |
| boolean drawGripper (int x, int y, int width, int height, boolean vertical) { |
| return false; |
| } |
| |
| Control findBackgroundControl () { |
| if (background != 0 || backgroundImage != null) return this; |
| return (state & PARENT_BACKGROUND) != 0 ? parent.findBackgroundControl () : null; |
| } |
| |
| Control findThemeControl () { |
| return background == 0 && backgroundImage == null ? parent.findThemeControl () : null; |
| } |
| |
| Control findImageControl () { |
| Control control = findBackgroundControl (); |
| return control != null && control.backgroundImage != null ? control : null; |
| } |
| |
| Menu [] findMenus (Control control) { |
| if (menu != null && this != control) return new Menu [] {menu}; |
| return new Menu [0]; |
| } |
| |
| char findMnemonic (String string) { |
| int index = 0; |
| int length = string.length (); |
| do { |
| while (index < length && string.charAt (index) != '&') index++; |
| if (++index >= length) return '\0'; |
| if (string.charAt (index) != '&') return string.charAt (index); |
| index++; |
| } while (index < length); |
| return '\0'; |
| } |
| |
| void fixFocus (Control focusControl) { |
| Shell shell = getShell (); |
| Control control = this; |
| while (control != shell && (control = control.parent) != null) { |
| if (control.setFocus ()) return; |
| } |
| shell.setSavedFocus (focusControl); |
| OS.UIElement_Focus (shell.shellHandle); |
| } |
| |
| /** |
| * Forces the receiver to have the <em>keyboard focus</em>, causing |
| * all keyboard events to be delivered to it. |
| * |
| * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #setFocus |
| */ |
| public boolean forceFocus () { |
| checkWidget (); |
| // if (display.focusEvent == SWT.FocusOut) return false; |
| Decorations shell = menuShell (); |
| shell.setSavedFocus (this); |
| if (!isEnabled () || !isVisible () || !isActive ()) return false; |
| if (isFocusControl ()) return true; |
| shell.setSavedFocus (null); |
| OS.UIElement_Focus (handle); |
| if (isDisposed ()) return false; |
| shell.setSavedFocus (this); |
| return isFocusControl (); |
| } |
| |
| /** |
| * Returns the accessible object for the receiver. |
| * If this is the first time this object is requested, |
| * then the object is created and returned. |
| * |
| * @return the accessible object |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Accessible#addAccessibleListener |
| * @see Accessible#addAccessibleControlListener |
| * |
| * @since 2.0 |
| */ |
| public Accessible getAccessible () { |
| checkWidget (); |
| if (accessible == null) accessible = new_Accessible (this); |
| return accessible; |
| } |
| |
| /** |
| * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED |
| */ |
| public int getAlpha () { |
| checkWidget (); |
| return (int) (0XFF * OS.UIElement_Opacity (handle)); |
| } |
| |
| /** |
| * Returns the receiver's background color. |
| * <p> |
| * Note: This operation is a hint and may be overridden by the platform. |
| * For example, on some versions of Windows the background of a TabFolder, |
| * is a gradient rather than a solid color. |
| * </p> |
| * @return the background color |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Color getBackground () { |
| checkWidget (); |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| return Color.wpf_new (display, control.getBackgroundColor ()); |
| } |
| |
| /** |
| * Returns the receiver's background image. |
| * |
| * @return the background image |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public Image getBackgroundImage () { |
| checkWidget (); |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| return control.backgroundImage; |
| } |
| |
| int getBackgroundColor () { |
| int color = background; |
| if (color == 0) color = defaultBackground (); |
| if (color == 0) color = OS.SystemColors_ControlColor;//TODO |
| return color; |
| } |
| |
| /** |
| * Returns the receiver's border width. |
| * |
| * @return the border width |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getBorderWidth () { |
| checkWidget (); |
| //FIXME |
| return 2; |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location |
| * relative to its parent (or its display if its parent is null), |
| * unless the receiver is a shell. In this case, the location is |
| * relative to the display. |
| * |
| * @return the receiver's bounding rectangle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Rectangle getBounds () { |
| checkWidget (); |
| int topHandle = topHandle (); |
| Point location = parent.getLocation (this); |
| int width = (int) OS.FrameworkElement_Width (topHandle); |
| int height = (int) OS.FrameworkElement_Height (topHandle); |
| return new Rectangle (location.x, location.y, width, height); |
| } |
| |
| String getClipboardText () { |
| String string = ""; |
| int text = OS.Clipboard_GetText (); |
| if (text != 0) { |
| string = createJavaString (text); |
| OS.GCHandle_Free(text); |
| } |
| return string; |
| } |
| |
| /** |
| * Returns the receiver's cursor, or null if it has not been set. |
| * <p> |
| * When the mouse pointer passes over a control its appearance |
| * is changed to match the control's cursor. |
| * </p> |
| * |
| * @return the receiver's cursor or <code>null</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.3 |
| */ |
| public Cursor getCursor () { |
| checkWidget (); |
| return cursor; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is detecting |
| * drag gestures, and <code>false</code> otherwise. |
| * |
| * @return the receiver's drag detect state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.3 |
| */ |
| public boolean getDragDetect () { |
| checkWidget (); |
| return (state & DRAG_DETECT) != 0; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled, and |
| * <code>false</code> otherwise. A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * |
| * @return the receiver's enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #isEnabled |
| */ |
| public boolean getEnabled () { |
| checkWidget (); |
| return (state & DISABLED) == 0; |
| } |
| |
| /** |
| * Returns the font that the receiver will use to paint textual information. |
| * |
| * @return the receiver's font |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Font getFont () { |
| checkWidget (); |
| return font != null ? font : defaultFont (); |
| } |
| |
| /** |
| * Returns the foreground color that the receiver will use to draw. |
| * |
| * @return the receiver's foreground color |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Color getForeground () { |
| checkWidget (); |
| return Color.wpf_new (display, getForegroundColor ()); |
| } |
| |
| int getForegroundColor () { |
| return foreground != 0 ? foreground : defaultForeground (); |
| } |
| |
| /** |
| * Returns layout data which is associated with the receiver. |
| * |
| * @return the receiver's layout data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Object getLayoutData () { |
| checkWidget (); |
| return layoutData; |
| } |
| |
| /** |
| * Returns a point describing the receiver's location relative |
| * to its parent (or its display if its parent is null), unless |
| * the receiver is a shell. In this case, the point is |
| * relative to the display. |
| * |
| * @return the receiver's location |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point getLocation () { |
| checkWidget (); |
| return parent.getLocation (this); |
| } |
| |
| /** |
| * Returns the receiver's pop up menu if it has one, or null |
| * if it does not. All controls may optionally have a pop up |
| * menu that is displayed when the user requests one for |
| * the control. The sequence of key strokes, button presses |
| * and/or button releases that are used to request a pop up |
| * menu is platform specific. |
| * |
| * @return the receiver's menu |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Menu getMenu () { |
| checkWidget (); |
| return menu; |
| } |
| |
| /** |
| * Returns the receiver's monitor. |
| * |
| * @return the receiver's monitor |
| * |
| * @since 3.0 |
| */ |
| public Monitor getMonitor () { |
| checkWidget (); |
| //TODO |
| return display.getPrimaryMonitor (); |
| } |
| |
| /** |
| * Returns the receiver's parent, which must be a <code>Composite</code> |
| * or null when the receiver is a shell that was created with null or |
| * a display for a parent. |
| * |
| * @return the receiver's parent |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Composite getParent () { |
| checkWidget (); |
| return parent; |
| } |
| |
| Control [] getPath () { |
| int count = 0; |
| Shell shell = getShell (); |
| Control control = this; |
| while (control != shell) { |
| count++; |
| control = control.parent; |
| } |
| control = this; |
| Control [] result = new Control [count]; |
| while (control != shell) { |
| result [--count] = control; |
| control = control.parent; |
| } |
| return result; |
| } |
| |
| /** |
| * Returns the region that defines the shape of the control, |
| * or null if the control has the default shape. |
| * |
| * @return the region that defines the shape of the shell (or null) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public Region getRegion () { |
| checkWidget (); |
| return region; |
| } |
| |
| /** |
| * Returns the receiver's shell. For all controls other than |
| * shells, this simply returns the control's nearest ancestor |
| * shell. Shells return themselves, even if they are children |
| * of other shells. |
| * |
| * @return the receiver's shell |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #getParent |
| */ |
| public Shell getShell () { |
| checkWidget (); |
| return parent.getShell (); |
| } |
| |
| /** |
| * Returns a point describing the receiver's size. The |
| * x coordinate of the result is the width of the receiver. |
| * The y coordinate of the result is the height of the |
| * receiver. |
| * |
| * @return the receiver's size |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point getSize () { |
| checkWidget (); |
| int topHandle = topHandle (); |
| int width = (int) OS.FrameworkElement_Width (topHandle); |
| int height = (int) OS.FrameworkElement_Height (topHandle); |
| return new Point (width, height); |
| } |
| |
| /** |
| * Returns the receiver's tool tip text, or null if it has |
| * not been set. |
| * |
| * @return the receiver's tool tip text |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public String getToolTipText () { |
| checkWidget (); |
| return toolTipText; |
| } |
| |
| /** |
| * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED |
| */ |
| public Transform getTransform () { |
| int transform = OS.FrameworkElement_RenderTransform (handle); |
| int matrix = OS.MatrixTransform_Matrix (transform); |
| OS.GCHandle_Free (transform); |
| float m11 = (float) OS.Matrix_M11 (matrix); |
| float m12 = (float) OS.Matrix_M12 (matrix); |
| float m21 = (float) OS.Matrix_M21 (matrix); |
| float m22 = (float) OS.Matrix_M22 (matrix); |
| float dx = (float) OS.Matrix_OffsetX (matrix); |
| float dy = (float) OS.Matrix_OffsetY (matrix); |
| OS.GCHandle_Free (matrix); |
| //TODO - leaking |
| return new Transform (display, m11, m12, m21, m22, dx, dy); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is visible, and |
| * <code>false</code> otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the receiver's visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean getVisible () { |
| checkWidget (); |
| return OS.UIElement_Visibility (topHandle ()) == OS.Visibility_Visible; |
| } |
| |
| Control getWidgetControl () { |
| return this; |
| } |
| |
| void hookEvents () { |
| super.hookEvents (); |
| int handler = OS.gcnew_KeyEventHandler (jniRef, "HandlePreviewKeyDown"); |
| OS.UIElement_PreviewKeyDown (handle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_KeyEventHandler (jniRef, "HandlePreviewKeyUp"); |
| OS.UIElement_PreviewKeyUp (handle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_TextCompositionEventHandler (jniRef, "HandlePreviewTextInput"); |
| OS.UIElement_PreviewTextInput (handle, handler); |
| OS.GCHandle_Free (handler); |
| |
| int topHandle = topHandle (); |
| handler = OS.gcnew_MouseButtonEventHandler (jniRef, "HandlePreviewMouseDown"); |
| OS.UIElement_PreviewMouseDown (topHandle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_MouseButtonEventHandler (jniRef, "HandlePreviewMouseUp"); |
| OS.UIElement_PreviewMouseUp (topHandle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_MouseEventHandler (jniRef, "HandleMouseEnter"); |
| OS.UIElement_MouseEnter (topHandle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_MouseEventHandler (jniRef, "HandleMouseLeave"); |
| OS.UIElement_MouseLeave (topHandle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_MouseEventHandler (jniRef, "HandlePreviewMouseMove"); |
| OS.UIElement_PreviewMouseMove (topHandle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_MouseWheelEventHandler (jniRef, "HandlePreviewMouseWheel"); |
| OS.UIElement_PreviewMouseWheel (topHandle, handler); |
| OS.GCHandle_Free (handler); |
| |
| handler = OS.gcnew_KeyboardFocusChangedEventHandler (jniRef, "HandlePreviewGotKeyboardFocus"); |
| OS.UIElement_PreviewGotKeyboardFocus (handle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_KeyboardFocusChangedEventHandler (jniRef, "HandleLostKeyboardFocus"); |
| OS.UIElement_LostKeyboardFocus (handle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_ContextMenuEventHandler (jniRef, "HandleContextMenuOpening"); |
| OS.FrameworkElement_ContextMenuOpening (handle, handler); |
| OS.GCHandle_Free (handler); |
| |
| handler = OS.gcnew_SizeChangedEventHandler(jniRef, "HandleSizeChanged"); |
| OS.FrameworkElement_SizeChanged (topHandle, handler); |
| OS.GCHandle_Free (handler); |
| |
| int typeid = OS.Canvas_typeid(); |
| handler = OS.gcnew_EventHandler(jniRef, "HandleTopChanged"); |
| int property = OS.Canvas_TopProperty(); |
| int dpd = OS.DependencyPropertyDescriptor_FromProperty(property, typeid); |
| OS.DependencyPropertyDescriptor_AddValueChanged(dpd, topHandle, handler); |
| OS.GCHandle_Free(handler); |
| OS.GCHandle_Free(property); |
| OS.GCHandle_Free(dpd); |
| handler = OS.gcnew_EventHandler(jniRef, "HandleLeftChanged"); |
| property = OS.Canvas_LeftProperty(); |
| dpd = OS.DependencyPropertyDescriptor_FromProperty(property, typeid); |
| OS.DependencyPropertyDescriptor_AddValueChanged(dpd, topHandle, handler); |
| OS.GCHandle_Free(handler); |
| OS.GCHandle_Free(property); |
| OS.GCHandle_Free(dpd); |
| OS.GCHandle_Free(typeid); |
| } |
| |
| void HandleLeftChanged (int sender, int e) { |
| int topHandle = topHandle(); |
| int x = (int)OS.Canvas_GetLeft(topHandle); |
| int y = (int)OS.Canvas_GetTop(topHandle); |
| if (x != this.x || y != this.y) { |
| this.x = x; |
| this.y = y; |
| sendEvent(SWT.Move); |
| } |
| } |
| |
| void HandleTopChanged (int sender, int e) { |
| int topHandle = topHandle(); |
| int x = (int)OS.Canvas_GetLeft(topHandle); |
| int y = (int)OS.Canvas_GetTop(topHandle); |
| if (x != this.x || y != this.y) { |
| this.x = x; |
| this.y = y; |
| sendEvent(SWT.Move); |
| } |
| } |
| |
| void HandleContextMenuOpening (int sender, int e) { |
| if (!checkEvent (e)) return; |
| int mouse = OS.Mouse_GetPosition (handle); |
| int x = (int) OS.Point_X (mouse); |
| int y = (int) OS.Point_Y (mouse); |
| OS.GCHandle_Free (mouse); |
| Point point = display.map (this, null, x, y); |
| showMenu (point.x, point.y); |
| OS.RoutedEventArgs_Handled (e, true); |
| } |
| |
| void HandlePreviewGotKeyboardFocus (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (OS.UIElement_IsKeyboardFocusWithin (handle)) return; |
| sendFocusEvent (SWT.FocusIn); |
| } |
| |
| void HandleLostKeyboardFocus (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (OS.UIElement_IsKeyboardFocusWithin (handle)) return; |
| sendFocusEvent (SWT.FocusOut); |
| } |
| |
| void HandlePreviewKeyDown (int sender, int e) { |
| if (!checkEvent (e)) return; |
| |
| if (display.dragDetectFrame != 0) { |
| if (OS.KeyEventArgs_Key (e) == OS.Key_Escape) { |
| OS.DispatcherFrame_Continue (display.dragDetectFrame, false); |
| } |
| } |
| |
| /* Let OS handle mnemonics for now */ |
| // if (translateMnemonic (e)) { |
| // OS.RoutedEventArgs_Handled (e, true); |
| // return; |
| // } |
| if (translateTraversal (e)) { |
| OS.RoutedEventArgs_Handled (e, true); |
| return; |
| } |
| sendKeyEvent (SWT.KeyDown, e, false); |
| } |
| |
| void HandlePreviewKeyUp (int sender, int e) { |
| if (!checkEvent (e)) return; |
| sendKeyEvent (SWT.KeyUp, e, false); |
| } |
| |
| void HandlePreviewMouseDown (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if ((state & CANVAS) != 0) { |
| OS.UIElement_CaptureMouse (handle); |
| } |
| |
| if (OS.MouseButtonEventArgs_ChangedButton (e) == 0 && OS.MouseButtonEventArgs_ClickCount (e) == 1) { |
| if ((state & DRAG_DETECT) != 0 && hooks (SWT.DragDetect)) { |
| int point = OS.MouseEventArgs_GetPosition (e, handle); |
| double x = OS.Point_X (point); |
| double y = OS.Point_Y (point); |
| OS.GCHandle_Free (point); |
| display.dragMouseDown = OS.GCHandle_Alloc (e); |
| dragDetect (x, y, true); |
| } |
| } |
| |
| sendMouseEvent (SWT.MouseDown, e, false); |
| } |
| |
| void HandlePreviewMouseUp (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if ((state & CANVAS) != 0) { |
| OS.UIElement_ReleaseMouseCapture (handle); |
| } |
| if (display.dragDetectFrame != 0) { |
| OS.DispatcherFrame_Continue (display.dragDetectFrame, false); |
| } |
| sendMouseEvent (SWT.MouseUp, e, false); |
| } |
| |
| void HandleMouseEnter (int sender, int e) { |
| if (!checkEvent (e)) return; |
| Control control = display.getCursorControl (); |
| if (control != this) return; |
| |
| Control lastMouseControl = display.mouseControl; |
| if (lastMouseControl != null && !lastMouseControl.isDisposed() && lastMouseControl != this) { |
| if (OS.Visual_IsDescendantOf (topHandle (), lastMouseControl.topHandle())) { |
| lastMouseControl.sendMouseEvent (SWT.MouseExit, e, false); |
| } |
| } |
| display.mouseControl = this; |
| sendMouseEvent (SWT.MouseEnter, e, false); |
| } |
| |
| void HandleMouseLeave (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (this != display.mouseControl) return; |
| sendMouseEvent (SWT.MouseExit, e, false); |
| } |
| |
| void HandlePreviewMouseMove (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (display.dragDetectFrame != 0) { |
| OS.RoutedEventArgs_Handled (e, true); |
| int point = OS.MouseEventArgs_GetPosition (e, handle); |
| boolean contains = OS.Rect_Contains (display.dragRect, point); |
| OS.GCHandle_Free (point); |
| if (!contains) { |
| display.dragging = true; |
| OS.DispatcherFrame_Continue (display.dragDetectFrame, false); |
| if (display.dragMouseDown != 0) { |
| sendDragEvent (display.dragMouseDown); |
| OS.GCHandle_Free (display.dragMouseDown); |
| display.dragMouseDown = 0; |
| } |
| } |
| return; |
| } |
| Control lastMouseControl = display.mouseControl; |
| if (lastMouseControl != null && !lastMouseControl.isDisposed() && lastMouseControl != this) { |
| if (OS.Visual_IsAncestorOf (topHandle (), lastMouseControl.topHandle ())) { |
| sendMouseEvent (SWT.MouseEnter, e, false); |
| } |
| } |
| display.mouseControl = this; |
| sendMouseEvent (SWT.MouseMove, e, false); |
| } |
| |
| void HandlePreviewMouseWheel (int sender, int e) { |
| if (!checkEvent (e)) return; |
| sendMouseEvent (SWT.MouseWheel, e, false); |
| } |
| |
| void HandlePreviewTextInput(int sender, int e) { |
| if (!checkEvent (e)) return; |
| sendKeyEvent (SWT.KeyDown, e, true); |
| } |
| |
| void HandleSizeChanged (int sender, int e) { |
| if (!checkEvent (e)) return; |
| int topHandle = topHandle(); |
| int width = (int) OS.FrameworkElement_ActualWidth (topHandle); |
| int height = (int) OS.FrameworkElement_ActualHeight (topHandle); |
| if (this.width != width || this.height != height) { |
| this.width = width; |
| this.height = height; |
| resized (); |
| } |
| } |
| |
| void resized () { |
| sendEvent (SWT.Resize); |
| } |
| |
| boolean hasFocus () { |
| // return OS.UIElement_IsFocused (handle); |
| // return OS.UIElement_IsKeyboardFocused (handle); |
| return display.getFocusControl() == this; |
| } |
| |
| /** |
| * Invokes platform specific functionality to allocate a new GC handle. |
| * <p> |
| * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
| * API for <code>Control</code>. It is marked public only so that it |
| * can be shared within the packages provided by SWT. It is not |
| * available on all platforms, and should never be called from |
| * application code. |
| * </p> |
| * |
| * @param data the platform specific GC data |
| * @return the platform specific GC handle |
| */ |
| public int internal_new_GC (GCData data) { |
| checkWidget(); |
| int drawingContext = data != null ? data.drawingContext : 0; |
| int visual = handle; |
| double width = OS.FrameworkElement_ActualWidth (handle); |
| double height = OS.FrameworkElement_ActualHeight (handle); |
| int rect = OS.gcnew_Rect (0, 0, width, height); |
| int clip = OS.gcnew_RectangleGeometry (rect); |
| if (drawingContext != 0) { |
| OS.DrawingContext_PushClip(drawingContext, clip); |
| } else { |
| if ((state & CANVAS) != 0) { |
| visual = OS.SWTCanvas_Visual (handle); |
| if (visual == 0) { |
| visual = OS.gcnew_DrawingVisual(); |
| if (visual == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| OS.SWTCanvas_Visual (handle, visual); |
| } |
| } else { |
| visual = OS.gcnew_DrawingVisual(); |
| if (visual == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| } |
| OS.ContainerVisual_Clip (visual, clip); |
| int dc = OS.DrawingVisual_RenderOpen (visual); |
| if (dc == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| drawingContext = dc; |
| int drawing = OS.DrawingVisual_Drawing(visual); |
| OS.DrawingContext_DrawDrawing(drawingContext, drawing); |
| OS.GCHandle_Free(drawing); |
| } |
| OS.GCHandle_Free (rect); |
| OS.GCHandle_Free (clip); |
| if (data != null) { |
| int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; |
| if ((data.style & mask) == 0) { |
| data.style |= style & (mask | SWT.MIRRORED); |
| } |
| data.device = display; |
| data.foreground = getForegroundColor (); |
| Control control = findBackgroundControl (); |
| if (control == null) control = this; |
| data.background = control.getBackgroundColor (); |
| data.font = font != null ? font : defaultFont (); |
| data.visual = visual; |
| } |
| return drawingContext; |
| } |
| |
| /** |
| * Invokes platform specific functionality to dispose a GC handle. |
| * <p> |
| * <b>IMPORTANT:</b> This method is <em>not</em> part of the public |
| * API for <code>Control</code>. It is marked public only so that it |
| * can be shared within the packages provided by SWT. It is not |
| * available on all platforms, and should never be called from |
| * application code. |
| * </p> |
| * |
| * @param hDC the platform specific GC handle |
| * @param data the platform specific GC data |
| */ |
| public void internal_dispose_GC (int dc, GCData data) { |
| checkWidget (); |
| if (data != null && data.drawingContext == 0) { |
| OS.DrawingContext_Close (dc); |
| OS.GCHandle_Free (dc); |
| OS.GCHandle_Free (data.visual); |
| } |
| } |
| |
| boolean isActive () { |
| // Shell dialogShell = display.getModalDialogShell (); |
| // if (dialogShell != null && dialogShell != getShell ()) { |
| // return false; |
| // } |
| Shell shell = null; |
| Shell [] modalShells = display.modalShells; |
| if (modalShells != null) { |
| int bits = SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL; |
| int index = modalShells.length; |
| while (--index >= 0) { |
| Shell modal = modalShells [index]; |
| if (modal != null) { |
| if ((modal.style & bits) != 0) { |
| Control control = this; |
| while (control != null) { |
| if (control == modal) break; |
| control = control.parent; |
| } |
| if (control != modal) return false; |
| break; |
| } |
| if ((modal.style & SWT.PRIMARY_MODAL) != 0) { |
| if (shell == null) shell = getShell (); |
| if (modal.parent == shell) return false; |
| } |
| } |
| } |
| } |
| if (shell == null) shell = getShell (); |
| return shell.getEnabled (); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled and all |
| * ancestors up to and including the receiver's nearest ancestor |
| * shell are enabled. Otherwise, <code>false</code> is returned. |
| * A disabled control is typically not selectable from the user |
| * interface and draws with an inactive or "grayed" look. |
| * |
| * @return the receiver's enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #getEnabled |
| */ |
| public boolean isEnabled () { |
| checkWidget (); |
| return getEnabled () && parent.isEnabled (); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver has the user-interface |
| * focus, and <code>false</code> otherwise. |
| * |
| * @return the receiver's focus state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean isFocusControl () { |
| checkWidget (); |
| return hasFocus (); |
| } |
| |
| boolean isFocusAncestor (Control control) { |
| while (control != null && control != this && !(control instanceof Shell)) { |
| control = control.parent; |
| } |
| return control == this; |
| } |
| |
| /** |
| * Returns <code>true</code> if the underlying operating |
| * system supports this reparenting, otherwise <code>false</code> |
| * |
| * @return <code>true</code> if the widget can be reparented, otherwise <code>false</code> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean isReparentable () { |
| checkWidget (); |
| return false; |
| } |
| |
| boolean isShowing () { |
| /* |
| * This is not complete. Need to check if the |
| * widget is obscurred by a parent or sibling. |
| */ |
| if (!isVisible ()) return false; |
| Control control = this; |
| while (control != null) { |
| Point size = control.getSize (); |
| if (size.x == 0 || size.y == 0) { |
| return false; |
| } |
| control = control.parent; |
| } |
| return true; |
| /* |
| * Check to see if current damage is included. |
| */ |
| // if (!OS.IsWindowVisible (handle)) return false; |
| // int flags = OS.DCX_CACHE | OS.DCX_CLIPCHILDREN | OS.DCX_CLIPSIBLINGS; |
| // int hDC = OS.GetDCEx (handle, 0, flags); |
| // int result = OS.GetClipBox (hDC, new RECT ()); |
| // OS.ReleaseDC (handle, hDC); |
| // return result != OS.NULLREGION; |
| } |
| |
| boolean isTabGroup () { |
| Control [] tabList = parent._getTabList (); |
| if (tabList != null) { |
| for (int i=0; i<tabList.length; i++) { |
| if (tabList [i] == this) return true; |
| } |
| } |
| int code = traversalCode (0, 0); |
| if ((code & (SWT.TRAVERSE_ARROW_PREVIOUS | SWT.TRAVERSE_ARROW_NEXT)) != 0) return false; |
| return (code & (SWT.TRAVERSE_TAB_PREVIOUS | SWT.TRAVERSE_TAB_NEXT)) != 0; |
| } |
| |
| boolean isTabItem () { |
| Control [] tabList = parent._getTabList (); |
| if (tabList != null) { |
| for (int i=0; i<tabList.length; i++) { |
| if (tabList [i] == this) return false; |
| } |
| } |
| int code = traversalCode (0, 0); |
| return (code & (SWT.TRAVERSE_ARROW_PREVIOUS | SWT.TRAVERSE_ARROW_NEXT)) != 0; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is visible and all |
| * ancestors up to and including the receiver's nearest ancestor |
| * shell are visible. Otherwise, <code>false</code> is returned. |
| * |
| * @return the receiver's visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #getVisible |
| */ |
| public boolean isVisible () { |
| checkWidget (); |
| int topHandle = topHandle (); |
| updateLayout (topHandle); |
| return OS.UIElement_IsVisible (topHandle); |
| } |
| |
| void markLayout (boolean changed, boolean all) { |
| /* Do nothing */ |
| } |
| |
| Decorations menuShell () { |
| return parent.menuShell (); |
| } |
| |
| boolean mnemonicHit (char key) { |
| return false; |
| } |
| |
| boolean mnemonicMatch (char key) { |
| return false; |
| } |
| |
| /** |
| * Moves the receiver above the specified control in the |
| * drawing order. If the argument is null, then the receiver |
| * is moved to the top of the drawing order. The control at |
| * the top of the drawing order will not be covered by other |
| * controls even if they occupy intersecting areas. |
| * |
| * @param control the sibling control (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Control#moveBelow |
| * @see Composite#getChildren |
| */ |
| public void moveAbove (Control control) { |
| checkWidget (); |
| if (parent == null) return; //TODO |
| if (control != null) { |
| if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (parent != control.parent) return; |
| } |
| int index; |
| int parentHandle = parent.parentingHandle (); |
| int children = OS.Panel_Children (parentHandle); |
| if (control != null) { |
| index = OS.UIElementCollection_IndexOf (children, control.topHandle ()); |
| } else { |
| index = OS.UIElementCollection_Count (children) - 1; |
| } |
| int topHandle = topHandle (); |
| if (OS.UIElementCollection_IndexOf (children, topHandle) < index) { |
| OS.UIElementCollection_Remove (children, topHandle); |
| OS.UIElementCollection_Insert (children, index, topHandle); |
| } |
| OS.GCHandle_Free (children); |
| } |
| |
| /** |
| * Moves the receiver below the specified control in the |
| * drawing order. If the argument is null, then the receiver |
| * is moved to the bottom of the drawing order. The control at |
| * the bottom of the drawing order will be covered by all other |
| * controls which occupy intersecting areas. |
| * |
| * @param control the sibling control (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Control#moveAbove |
| * @see Composite#getChildren |
| */ |
| public void moveBelow (Control control) { |
| checkWidget (); |
| if (parent == null) return; //TODO |
| if (control != null) { |
| if (control.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (parent != control.parent) return; |
| } |
| int index; |
| int parentHandle = parent.parentingHandle (); |
| int children = OS.Panel_Children (parentHandle); |
| if (control != null) { |
| index = Math.max (0, OS.UIElementCollection_IndexOf (children, control.topHandle ()) - 1); |
| } else { |
| if (parentHandle != parent.handle) { |
| index = 1; |
| } else { |
| index = 0; |
| } |
| } |
| int topHandle = topHandle (); |
| if (OS.UIElementCollection_IndexOf (children, topHandle) > index) { |
| OS.UIElementCollection_Remove (children, topHandle); |
| OS.UIElementCollection_Insert (children, index, topHandle); |
| } |
| OS.GCHandle_Free (children); |
| } |
| |
| Accessible new_Accessible (Control control) { |
| return Accessible.internal_new_Accessible (this); |
| } |
| |
| /** |
| * Causes the receiver to be resized to its preferred size. |
| * For a composite, this involves computing the preferred size |
| * from its layout, if there is one. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #computeSize(int, int, boolean) |
| */ |
| public void pack () { |
| checkWidget (); |
| pack (true); |
| } |
| |
| /** |
| * Causes the receiver to be resized to its preferred size. |
| * For a composite, this involves computing the preferred size |
| * from its layout, if there is one. |
| * <p> |
| * If the changed flag is <code>true</code>, it indicates that the receiver's |
| * <em>contents</em> have changed, therefore any caches that a layout manager |
| * containing the control may have been keeping need to be flushed. When the |
| * control is resized, the changed flag will be <code>false</code>, so layout |
| * manager caches can be retained. |
| * </p> |
| * |
| * @param changed whether or not the receiver's contents have changed |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #computeSize(int, int, boolean) |
| */ |
| public void pack (boolean changed) { |
| checkWidget (); |
| setSize (computeSize (SWT.DEFAULT, SWT.DEFAULT, changed)); |
| } |
| |
| /** |
| * Prints the receiver and all children. |
| * |
| * @param gc the gc where the drawing occurs |
| * @return <code>true</code> if the operation was successful and <code>false</code> otherwise |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the gc has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public boolean print (GC gc) { |
| checkWidget (); |
| if (gc == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (gc.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| return false; |
| } |
| |
| /** |
| * Causes the entire bounds of the receiver to be marked |
| * as needing to be redrawn. The next time a paint request |
| * is processed, the control will be completely painted, |
| * including the background. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #update() |
| * @see PaintListener |
| * @see SWT#Paint |
| * @see SWT#NO_BACKGROUND |
| * @see SWT#NO_REDRAW_RESIZE |
| * @see SWT#NO_MERGE_PAINTS |
| * @see SWT#DOUBLE_BUFFERED |
| */ |
| public void redraw () { |
| checkWidget (); |
| redraw (false); |
| } |
| |
| void redraw (boolean all) { |
| // checkWidget (); |
| //TODO InvalidateVisual invalidates the entire visual tree |
| OS.UIElement_InvalidateVisual (topHandle ()); |
| OS.UIElement_InvalidateVisual (handle); |
| } |
| |
| /** |
| * Causes the rectangular area of the receiver specified by |
| * the arguments to be marked as needing to be redrawn. |
| * The next time a paint request is processed, that area of |
| * the receiver will be painted, including the background. |
| * If the <code>all</code> flag is <code>true</code>, any |
| * children of the receiver which intersect with the specified |
| * area will also paint their intersecting areas. If the |
| * <code>all</code> flag is <code>false</code>, the children |
| * will not be painted. |
| * |
| * @param x the x coordinate of the area to draw |
| * @param y the y coordinate of the area to draw |
| * @param width the width of the area to draw |
| * @param height the height of the area to draw |
| * @param all <code>true</code> if children should redraw, and <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #update() |
| * @see PaintListener |
| * @see SWT#Paint |
| * @see SWT#NO_BACKGROUND |
| * @see SWT#NO_REDRAW_RESIZE |
| * @see SWT#NO_MERGE_PAINTS |
| * @see SWT#DOUBLE_BUFFERED |
| */ |
| public void redraw (int x, int y, int width, int height, boolean all) { |
| checkWidget (); |
| if (width <= 0 || height <= 0) return; |
| //TODO redraw only rect |
| redraw(true); |
| } |
| |
| void register () { |
| display.addWidget (handle, this); |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| if (handle != 0) OS.GCHandle_Free (handle); |
| handle = 0; |
| parent = null; |
| } |
| |
| void releaseParent () { |
| parent.removeControl (this); |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| // if (toolTipText != null) { |
| // setToolTipText (getShell (), null); |
| // } |
| toolTipText = null; |
| if (menu != null && !menu.isDisposed ()) { |
| menu.dispose (); |
| } |
| menu = null; |
| cursor = null; |
| layoutData = null; |
| if (accessible != null) { |
| accessible.internal_dispose_Accessible (); |
| } |
| accessible = null; |
| region = null; |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is moved or resized. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ControlListener |
| * @see #addControlListener |
| */ |
| public void removeControlListener (ControlListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Move, listener); |
| eventTable.unhook (SWT.Resize, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when a drag gesture occurs. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see DragDetectListener |
| * @see #addDragDetectListener |
| * |
| * @since 3.3 |
| */ |
| public void removeDragDetectListener(DragDetectListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.DragDetect, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control gains or loses focus. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see FocusListener |
| * @see #addFocusListener |
| */ |
| public void removeFocusListener(FocusListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.FocusIn, listener); |
| eventTable.unhook (SWT.FocusOut, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the help events are generated for the control. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see HelpListener |
| * @see #addHelpListener |
| */ |
| public void removeHelpListener (HelpListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Help, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when keys are pressed and released on the system keyboard. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see KeyListener |
| * @see #addKeyListener |
| */ |
| public void removeKeyListener(KeyListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.KeyUp, listener); |
| eventTable.unhook (SWT.KeyDown, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the platform-specific context menu trigger has |
| * occurred. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MenuDetectListener |
| * @see #addMenuDetectListener |
| * |
| * @since 3.3 |
| */ |
| public void removeMenuDetectListener (MenuDetectListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MenuDetect, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the mouse passes or hovers over controls. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseTrackListener |
| * @see #addMouseTrackListener |
| */ |
| public void removeMouseTrackListener(MouseTrackListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MouseEnter, listener); |
| eventTable.unhook (SWT.MouseExit, listener); |
| eventTable.unhook (SWT.MouseHover, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when mouse buttons are pressed and released. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseListener |
| * @see #addMouseListener |
| */ |
| public void removeMouseListener (MouseListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MouseDown, listener); |
| eventTable.unhook (SWT.MouseUp, listener); |
| eventTable.unhook (SWT.MouseDoubleClick, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the mouse moves. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseMoveListener |
| * @see #addMouseMoveListener |
| */ |
| public void removeMouseMoveListener(MouseMoveListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MouseMove, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the mouse wheel is scrolled. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see MouseWheelListener |
| * @see #addMouseWheelListener |
| * |
| * @since 3.3 |
| */ |
| public void removeMouseWheelListener (MouseWheelListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.MouseWheel, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the receiver needs to be painted. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see PaintListener |
| * @see #addPaintListener |
| */ |
| public void removePaintListener(PaintListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook(SWT.Paint, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when traversal events occur. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see TraverseListener |
| * @see #addTraverseListener |
| */ |
| public void removeTraverseListener(TraverseListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Traverse, listener); |
| } |
| |
| boolean sendFocusEvent (int type) { |
| Shell shell = getShell (); |
| |
| Display display = this.display; |
| display.focusControl = this; |
| sendEvent (type); |
| display.focusControl = null; |
| |
| /* |
| * It is possible that the shell may be |
| * disposed at this point. If this happens |
| * don't send the activate and deactivate |
| * events. |
| */ |
| if (!shell.isDisposed ()) { |
| switch (type) { |
| case SWT.FocusIn: |
| shell.setActiveControl (this); |
| break; |
| case SWT.FocusOut: |
| if (shell != display.getActiveShell ()) { |
| shell.setActiveControl (null); |
| } |
| break; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Sets the receiver's background color to the color specified |
| * by the argument, or to the default system color for the control |
| * if the argument is null. |
| * <p> |
| * Note: This operation is a hint and may be overridden by the platform. |
| * For example, on Windows the background of a Button cannot be changed. |
| * </p> |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setBackground (Color color) { |
| checkWidget (); |
| if (color != null) { |
| if (color.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| if (background != 0 && OS.Object_Equals (color.handle, background)) return; |
| background = color.handle; |
| } else { |
| if (background == 0) return; |
| background = 0; |
| } |
| setBackground (); |
| // updateBackgroundColor (); |
| } |
| |
| int backgroundHandle () { |
| return handle; |
| } |
| |
| int backgroundProperty () { |
| return OS.Control_BackgroundProperty (); |
| } |
| |
| void setBackground () { |
| int backgroundHandle = backgroundHandle (); |
| int property = backgroundProperty (); |
| int brush = 0; |
| if ((state & PARENT_BACKGROUND) == 0) { |
| if (backgroundImage != null) { |
| int imageHandle = backgroundImage.handle; |
| brush = OS.gcnew_ImageBrush (imageHandle); |
| OS.TileBrush_TileMode (brush, OS.TileMode_Tile); |
| OS.TileBrush_Stretch (brush, OS.Stretch_Fill); |
| OS.TileBrush_ViewportUnits (brush, OS.BrushMappingMode_Absolute); |
| int rect = OS.gcnew_Rect (0, 0, OS.BitmapSource_PixelWidth (imageHandle), OS.BitmapSource_PixelHeight (imageHandle)); |
| OS.TileBrush_Viewport (brush, rect); |
| OS.GCHandle_Free (rect); |
| } else { |
| int color = background; |
| if (color == 0) { |
| color = defaultBackground (); |
| if ((state & THEME_BACKGROUND) != 0) { |
| Control themeControl = findThemeControl (); |
| if (themeControl != null) { |
| if (color != 0) { |
| /* |
| * Feature in WPF. If the control does not have a background |
| * brush it does not receive input events. |
| * The fix is to set a transparent background. |
| */ |
| color = OS.Colors_Transparent; |
| } |
| } |
| } |
| } |
| if (color != 0) { |
| brush = OS.gcnew_SolidColorBrush (color); |
| } |
| } |
| } |
| if (brush != 0) { |
| OS.DependencyObject_SetValue (backgroundHandle, property, brush); |
| OS.GCHandle_Free (brush); |
| } else { |
| OS.DependencyObject_ClearValue (backgroundHandle, property); |
| } |
| OS.GCHandle_Free (property); |
| } |
| |
| /** |
| * Sets the receiver's background image to the image specified |
| * by the argument, or to the default system color for the control |
| * if the argument is null. The background image is tiled to fill |
| * the available space. |
| * <p> |
| * Note: This operation is a hint and may be overridden by the platform. |
| * For example, on Windows the background of a Button cannot be changed. |
| * </p> |
| * @param image the new image (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument is not a bitmap</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setBackgroundImage (Image image) { |
| checkWidget (); |
| if (image != null) { |
| if (image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (image.type != SWT.BITMAP) error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (backgroundImage == image) return; |
| backgroundImage = image; |
| setBackground (); |
| } |
| |
| /** |
| * Sets the receiver's size and location to the rectangular |
| * area specified by the arguments. The <code>x</code> and |
| * <code>y</code> arguments are relative to the receiver's |
| * parent (or its display if its parent is null), unless |
| * the receiver is a shell. In this case, the <code>x</code> |
| * and <code>y</code> arguments are relative to the display. |
| * <p> |
| * Note: Attempting to set the width or height of the |
| * receiver to a negative number will cause that |
| * value to be set to zero instead. |
| * </p> |
| * |
| * @param x the new x coordinate for the receiver |
| * @param y the new y coordinate for the receiver |
| * @param width the new width for the receiver |
| * @param height the new height for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setBounds (int x, int y, int width, int height) { |
| checkWidget (); |
| int flags = MOVED | RESIZED; |
| setBounds (x, y, Math.max (0, width), Math.max (0, height), flags); |
| } |
| |
| int setBounds (int x, int y, int width, int height, int flags) { |
| int result = 0; |
| int topHandle = topHandle (); |
| if ((flags & MOVED) != 0) { |
| int oldX = (int) OS.Canvas_GetLeft (topHandle); |
| int oldY = (int) OS.Canvas_GetTop (topHandle); |
| if (oldX != x) { |
| this.x = x; |
| OS.Canvas_SetLeft (topHandle, x); |
| } |
| if (oldY != y) { |
| this.y = y; |
| OS.Canvas_SetTop (topHandle, y); |
| } |
| if (oldX != x || oldY != y) { |
| sendEvent (SWT.Move); |
| if (isDisposed ()) return 0; |
| result |= MOVED; |
| } |
| } |
| if ((flags & RESIZED) != 0) { |
| int oldWidth = (int) OS.FrameworkElement_Width (topHandle); |
| int oldHeight = (int) OS.FrameworkElement_Height (topHandle); |
| if (oldWidth != width) { |
| this.width = width; |
| OS.FrameworkElement_Width (topHandle, width); |
| } |
| if (oldHeight != height) { |
| this.height = height; |
| OS.FrameworkElement_Height (topHandle, height); |
| } |
| if (oldWidth != width || oldHeight != height) { |
| sendEvent (SWT.Resize); |
| if (isDisposed ()) return 0; |
| result |= RESIZED; |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * Sets the receiver's size and location to the rectangular |
| * area specified by the argument. The <code>x</code> and |
| * <code>y</code> fields of the rectangle are relative to |
| * the receiver's parent (or its display if its parent is null). |
| * <p> |
| * Note: Attempting to set the width or height of the |
| * receiver to a negative number will cause that |
| * value to be set to zero instead. |
| * </p> |
| * |
| * @param rect the new bounds for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setBounds (Rectangle rect) { |
| checkWidget (); |
| if (rect == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setBounds (rect.x, rect.y, rect.width, rect.height); |
| } |
| |
| /** |
| * If the argument is <code>true</code>, causes the receiver to have |
| * all mouse events delivered to it until the method is called with |
| * <code>false</code> as the argument. Note that on some platforms, |
| * a mouse button must currently be down for capture to be assigned. |
| * |
| * @param capture <code>true</code> to capture the mouse, and <code>false</code> to release it |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setCapture (boolean capture) { |
| checkWidget (); |
| if (capture) { |
| OS.UIElement_CaptureMouse (handle); |
| } else { |
| OS.UIElement_ReleaseMouseCapture (handle); |
| } |
| } |
| |
| /** |
| * Sets the receiver's cursor to the cursor specified by the |
| * argument, or to the default cursor for that kind of control |
| * if the argument is null. |
| * <p> |
| * When the mouse pointer passes over a control its appearance |
| * is changed to match the control's cursor. |
| * </p> |
| * |
| * @param cursor the new cursor (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setCursor (Cursor cursor) { |
| checkWidget (); |
| if (cursor != null && cursor.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| this.cursor = cursor; |
| if (cursor != null) { |
| OS.FrameworkElement_Cursor (handle, cursor.handle); |
| } else { |
| int property = OS.FrameworkElement_CursorProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| } |
| } |
| |
| /** |
| * Sets the receiver's drag detect state. If the argument is |
| * <code>true</code>, the receiver will detect drag gestures, |
| * otherwise these gestures will be ignored. |
| * |
| * @param dragDetect the new drag detect state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.3 |
| */ |
| public void setDragDetect (boolean dragDetect) { |
| checkWidget (); |
| if (dragDetect) { |
| state |= DRAG_DETECT; |
| } else { |
| state &= ~DRAG_DETECT; |
| } |
| } |
| |
| /** |
| * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED |
| */ |
| public void setEffect(Effect effect){ |
| checkWidget (); |
| if (effect != null && effect.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (effect != null) { |
| OS.UIElement_BitmapEffect (handle, effect.handle); |
| OS.UIElement_ClipToBounds (topHandle (), false); |
| } else { |
| OS.UIElement_BitmapEffect (handle, 0); |
| setClipping(); |
| } |
| // updateLayout(handle); |
| } |
| |
| /** |
| * Enables the receiver if the argument is <code>true</code>, |
| * and disables it otherwise. A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * |
| * @param enabled the new enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setEnabled (boolean enabled) { |
| checkWidget (); |
| if (((state & DISABLED) == 0) == enabled) return; |
| /* |
| * Feature in Windows. If the receiver has focus, disabling |
| * the receiver causes no window to have focus. The fix is |
| * to assign focus to the first ancestor window that takes |
| * focus. If no window will take focus, set focus to the |
| * desktop. |
| */ |
| Control control = null; |
| boolean fixFocus = false; |
| if (!enabled) { |
| // if (display.focusEvent != SWT.FocusOut) { |
| control = display.getFocusControl (); |
| fixFocus = isFocusAncestor (control); |
| // } |
| } |
| if (enabled) { |
| state &= ~DISABLED; |
| } else { |
| state |= DISABLED; |
| } |
| enableWidget (enabled); |
| if (fixFocus) fixFocus (control); |
| } |
| |
| /** |
| * Causes the receiver to have the <em>keyboard focus</em>, |
| * such that all keyboard events will be delivered to it. Focus |
| * reassignment will respect applicable platform constraints. |
| * |
| * @return <code>true</code> if the control got focus, and <code>false</code> if it was unable to. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #forceFocus |
| */ |
| public boolean setFocus () { |
| checkWidget (); |
| if ((style & SWT.NO_FOCUS) != 0) return false; |
| return forceFocus (); |
| } |
| |
| /** |
| * Sets the font that the receiver will use to paint textual information |
| * to the font specified by the argument, or to the default font for that |
| * kind of control if the argument is null. |
| * |
| * @param font the new font (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setFont (Font font) { |
| checkWidget (); |
| if (font != null) { |
| if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| this.font = font; |
| if (font == null) font = defaultFont(); |
| setFont (font.handle, font.size); |
| } |
| |
| void setFont (int font, double size) { |
| if (font != 0) { |
| int fontFamily = OS.Typeface_FontFamily( font); |
| int style = OS.Typeface_Style (font); |
| int weight = OS.Typeface_Weight (font); |
| int stretch = OS.Typeface_Stretch (font); |
| OS.Control_FontFamily (handle, fontFamily); |
| OS.Control_FontStyle (handle, style); |
| OS.Control_FontWeight (handle, weight); |
| OS.Control_FontStretch (handle, stretch); |
| OS.Control_FontSize (handle, size); |
| OS.GCHandle_Free (fontFamily); |
| OS.GCHandle_Free (style); |
| OS.GCHandle_Free (weight); |
| OS.GCHandle_Free (stretch); |
| } else { |
| int property = OS.Control_FontFamilyProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| property = OS.Control_FontStyleProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| property = OS.Control_FontWeightProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| property = OS.Control_FontStretchProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| property = OS.Control_FontSizeProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| } |
| } |
| |
| /** |
| * Sets the receiver's foreground color to the color specified |
| * by the argument, or to the default system color for the control |
| * if the argument is null. |
| * <p> |
| * Note: This operation is a hint and may be overridden by the platform. |
| * </p> |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setForeground (Color color) { |
| checkWidget (); |
| int brush = 0; |
| if (color != null) { |
| if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| if (foreground != 0 && OS.Object_Equals (color.handle, foreground)) return; |
| foreground = color.handle; |
| brush = OS.gcnew_SolidColorBrush (foreground); |
| } else { |
| if (foreground == 0) return; |
| foreground = 0; |
| } |
| setForegroundBrush (brush); |
| if (brush != 0) OS.GCHandle_Free (brush); |
| } |
| |
| void setForegroundBrush (int brush) { |
| if (brush != 0) { |
| OS.Control_Foreground (handle, brush); |
| } else { |
| int property = OS.Control_ForegroundProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| } |
| } |
| |
| /** |
| * Sets the layout data associated with the receiver to the argument. |
| * |
| * @param layoutData the new layout data for the receiver. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setLayoutData (Object layoutData) { |
| checkWidget (); |
| this.layoutData = layoutData; |
| } |
| |
| /** |
| * Sets the receiver's location to the point specified by |
| * the arguments which are relative to the receiver's |
| * parent (or its display if its parent is null), unless |
| * the receiver is a shell. In this case, the point is |
| * relative to the display. |
| * |
| * @param x the new x coordinate for the receiver |
| * @param y the new y coordinate for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setLocation (int x, int y) { |
| checkWidget (); |
| int flags = MOVED; |
| setBounds (x, y, 0, 0, flags); |
| } |
| |
| /** |
| * Sets the receiver's location to the point specified by |
| * the arguments which are relative to the receiver's |
| * parent (or its display if its parent is null), unless |
| * the receiver is a shell. In this case, the point is |
| * relative to the display. |
| * |
| * @param location the new location for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setLocation (Point location) { |
| checkWidget (); |
| if (location == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setLocation (location.x, location.y); |
| } |
| |
| /** |
| * Sets the receiver's pop up menu to the argument. |
| * All controls may optionally have a pop up |
| * menu that is displayed when the user requests one for |
| * the control. The sequence of key strokes, button presses |
| * and/or button releases that are used to request a pop up |
| * menu is platform specific. |
| * <p> |
| * Note: Disposing of a control that has a pop up menu will |
| * dispose of the menu. To avoid this behavior, set the |
| * menu to null before the control is disposed. |
| * </p> |
| * |
| * @param menu the new pop up menu |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_MENU_NOT_POP_UP - the menu is not a pop up menu</li> |
| * <li>ERROR_INVALID_PARENT - if the menu is not in the same widget tree</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the menu has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setMenu (Menu menu) { |
| checkWidget (); |
| if (menu != null) { |
| if (menu.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| if ((menu.style & SWT.POP_UP) == 0) { |
| error (SWT.ERROR_MENU_NOT_POP_UP); |
| } |
| if (menu.parent != menuShell ()) { |
| error (SWT.ERROR_INVALID_PARENT); |
| } |
| } |
| this.menu = menu; |
| OS.FrameworkElement_ContextMenu(handle, menu != null ? menu.handle : 0); |
| } |
| |
| /** |
| * If the argument is <code>false</code>, causes subsequent drawing |
| * operations in the receiver to be ignored. No drawing of any kind |
| * can occur in the receiver until the flag is set to true. |
| * Graphics operations that occurred while the flag was |
| * <code>false</code> are lost. When the flag is set to <code>true</code>, |
| * the entire widget is marked as needing to be redrawn. Nested calls |
| * to this method are stacked. |
| * <p> |
| * Note: This operation is a hint and may not be supported on some |
| * platforms or for some widgets. |
| * </p> |
| * |
| * @param redraw the new redraw state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #redraw(int, int, int, int, boolean) |
| * @see #update() |
| */ |
| public void setRedraw (boolean redraw) { |
| checkWidget (); |
| /* |
| * Feature in Windows. When WM_SETREDRAW is used to turn |
| * off drawing in a widget, it clears the WS_VISIBLE bits |
| * and then sets them when redraw is turned back on. This |
| * means that WM_SETREDRAW will make a widget unexpectedly |
| * visible. The fix is to track the visibility state while |
| * drawing is turned off and restore it when drawing is |
| * turned back on. |
| */ |
| // if (drawCount == 0) { |
| // int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); |
| // if ((bits & OS.WS_VISIBLE) == 0) state |= HIDDEN; |
| // } |
| // if (redraw) { |
| // if (--drawCount == 0) { |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0); |
| // if ((state & HIDDEN) != 0) { |
| // state &= ~HIDDEN; |
| // OS.ShowWindow (handle, OS.SW_HIDE); |
| // } else { |
| // if (OS.IsWinCE) { |
| // OS.InvalidateRect (handle, null, true); |
| // } else { |
| // int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; |
| // OS.RedrawWindow (handle, null, 0, flags); |
| // } |
| // } |
| // } |
| // } else { |
| // if (drawCount++ == 0) { |
| // OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0); |
| // } |
| // } |
| redraw (); |
| } |
| |
| /** |
| * Sets the shape of the control to the region specified |
| * by the argument. When the argument is null, the |
| * default shape of the control is restored. |
| * |
| * @param region the region that defines the shape of the control (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the region has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public void setRegion (Region region) { |
| checkWidget (); |
| if (region != null && region.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| OS.UIElement_Clip (topHandle (), region.handle); |
| this.region = region; |
| } |
| |
| boolean setSavedFocus () { |
| return forceFocus (); |
| } |
| |
| /** |
| * Sets the receiver's size to the point specified by the arguments. |
| * <p> |
| * Note: Attempting to set the width or height of the |
| * receiver to a negative number will cause that |
| * value to be set to zero instead. |
| * </p> |
| * |
| * @param width the new width for the receiver |
| * @param height the new height for the receiver |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setSize (int width, int height) { |
| checkWidget (); |
| int flags = RESIZED; |
| setBounds (0, 0, Math.max (0, width), Math.max (0, height), flags); |
| } |
| |
| /** |
| * Sets the receiver's size to the point specified by the argument. |
| * <p> |
| * Note: Attempting to set the width or height of the |
| * receiver to a negative number will cause them to be |
| * set to zero instead. |
| * </p> |
| * |
| * @param size the new size for the receiver |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setSize (Point size) { |
| checkWidget (); |
| if (size == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setSize (size.x, size.y); |
| } |
| |
| boolean setTabGroupFocus () { |
| return setTabItemFocus (); |
| } |
| |
| boolean setTabItemFocus () { |
| if (!isShowing ()) return false; |
| return forceFocus (); |
| } |
| |
| /** |
| * Sets the receiver's tool tip text to the argument, which |
| * may be null indicating that the default tool tip for the |
| * control will be shown. For a control that has a default |
| * tool tip, such as the Tree control on Windows, setting |
| * the tool tip text to an empty string replaces the default, |
| * causing no tool tip text to be shown. |
| * <p> |
| * The mnemonic indicator (character '&') is not displayed in a tool tip. |
| * To display a single '&' in the tool tip, the character '&' can be |
| * escaped by doubling it in the string. |
| * </p> |
| * |
| * @param string the new tool tip text (or null) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setToolTipText (String string) { |
| checkWidget (); |
| toolTipText = string; |
| if (string != null && string.length() == 0) string = null; |
| int strPtr = createDotNetString (string, false); |
| OS.FrameworkElement_ToolTip (handle, strPtr); |
| if (strPtr != 0) OS.GCHandle_Free (strPtr); |
| } |
| |
| /** |
| * WARNING: THIS API IS UNDER CONSTRUCTION AND SHOULD NOT BE USED |
| */ |
| public void setTransform (Transform t) { |
| checkWidget (); |
| if (t == null) { |
| OS.FrameworkElement_RenderTransform (handle, 0); |
| return; |
| } |
| int matrixTransform = OS.gcnew_MatrixTransform (t.handle); |
| // OS.FrameworkElement_LayoutTransform (handle, matrixTransform); |
| OS.FrameworkElement_RenderTransform (handle, matrixTransform); |
| OS.GCHandle_Free (matrixTransform); |
| } |
| |
| /** |
| * Marks the receiver as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param visible the new visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setVisible (boolean visible) { |
| checkWidget (); |
| int topHandle = topHandle (); |
| if ((OS.UIElement_Visibility (topHandle) == OS.Visibility_Visible) == visible) return; |
| if (visible) { |
| sendEvent (SWT.Show); |
| if (isDisposed ()) return; |
| } |
| |
| /* |
| * Feature in Windows. If the receiver has focus, hiding |
| * the receiver causes no window to have focus. The fix is |
| * to assign focus to the first ancestor window that takes |
| * focus. If no window will take focus, set focus to the |
| * desktop. |
| */ |
| Control control = null; |
| boolean fixFocus = false; |
| if (!visible) { |
| // if (display.focusEvent != SWT.FocusOut) { |
| control = display.getFocusControl (); |
| fixFocus = isFocusAncestor (control); |
| // } |
| } |
| OS.UIElement_Visibility (topHandle, visible ? OS.Visibility_Visible : OS.Visibility_Hidden); |
| if (isDisposed ()) return; |
| if (!visible) { |
| sendEvent (SWT.Hide); |
| if (isDisposed ()) return; |
| } |
| if (fixFocus) fixFocus (control); |
| } |
| |
| void sort (int [] items) { |
| /* Shell Sort from K&R, pg 108 */ |
| int length = items.length; |
| for (int gap=length/2; gap>0; gap/=2) { |
| for (int i=gap; i<length; i++) { |
| for (int j=i-gap; j>=0; j-=gap) { |
| if (items [j] <= items [j + gap]) { |
| int swap = items [j]; |
| items [j] = items [j + gap]; |
| items [j + gap] = swap; |
| } |
| } |
| } |
| } |
| } |
| |
| void sortAscending (int [] items) { |
| /* Shell Sort from K&R, pg 108 */ |
| int length = items.length; |
| for (int gap=length/2; gap>0; gap/=2) { |
| for (int i=gap; i<length; i++) { |
| for (int j=i-gap; j>=0; j-=gap) { |
| if (items [j] >= items [j + gap]) { |
| int swap = items [j]; |
| items [j] = items [j + gap]; |
| items [j + gap] = swap; |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Returns a point which is the result of converting the |
| * argument, which is specified in display relative coordinates, |
| * to coordinates relative to the receiver. |
| * <p> |
| * @param x the x coordinate to be translated |
| * @param y the y coordinate to be translated |
| * @return the translated coordinates |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public Point toControl (int x, int y) { |
| checkWidget (); |
| return display.map (null, this, x, y); |
| } |
| |
| /** |
| * Returns a point which is the result of converting the |
| * argument, which is specified in display relative coordinates, |
| * to coordinates relative to the receiver. |
| * <p> |
| * @param point the point to be translated (must not be null) |
| * @return the translated coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point toControl (Point point) { |
| checkWidget (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return toControl (point.x, point.y); |
| } |
| |
| /** |
| * Returns a point which is the result of converting the |
| * argument, which is specified in coordinates relative to |
| * the receiver, to display relative coordinates. |
| * <p> |
| * @param x the x coordinate to be translated |
| * @param y the y coordinate to be translated |
| * @return the translated coordinates |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 2.1 |
| */ |
| public Point toDisplay (int x, int y) { |
| checkWidget (); |
| return display.map (this, null, x, y); |
| } |
| |
| /** |
| * Returns a point which is the result of converting the |
| * argument, which is specified in coordinates relative to |
| * the receiver, to display relative coordinates. |
| * <p> |
| * @param point the point to be translated (must not be null) |
| * @return the translated coordinates |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Point toDisplay (Point point) { |
| checkWidget (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| return toDisplay (point.x, point.y); |
| } |
| |
| boolean translateMnemonic (Event event, Control control) { |
| if (control == this) return false; |
| if (!isVisible () || !isEnabled ()) return false; |
| event.doit = mnemonicMatch (event.character); |
| return traverse (event); |
| } |
| |
| boolean translateMnemonic (int e) { |
| int key = OS.KeyEventArgs_Key(e); |
| if (key < 0x20) return false; |
| int keyboardDevice = OS.KeyboardEventArgs_KeyboardDevice(e); |
| int modifiers = OS.KeyboardDevice_Modifiers(keyboardDevice); |
| OS.GCHandle_Free(keyboardDevice); |
| if (modifiers == 0) { |
| int code = traversalCode (key, e); |
| if ((code & SWT.TRAVERSE_MNEMONIC) == 0) return false; |
| } else { |
| if ((modifiers & OS.ModifierKeys_Alt) == 0) return false; |
| } |
| Decorations shell = menuShell (); |
| if (shell.isVisible () && shell.isEnabled ()) { |
| Event event = new Event (); |
| event.detail = SWT.TRAVERSE_MNEMONIC; |
| if (setKeyState (event, SWT.Traverse, e)) { |
| return translateMnemonic (event, null) || shell.translateMnemonic (event, this); |
| } |
| } |
| return false; |
| } |
| |
| int traversalCode (int key, int event) { |
| int code = SWT.TRAVERSE_RETURN | SWT.TRAVERSE_TAB_NEXT | SWT.TRAVERSE_TAB_PREVIOUS | SWT.TRAVERSE_PAGE_NEXT | SWT.TRAVERSE_PAGE_PREVIOUS; |
| Shell shell = getShell (); |
| if (shell.parent != null) code |= SWT.TRAVERSE_ESCAPE; |
| return code; |
| } |
| |
| boolean translateTraversal (int e) { |
| int detail = SWT.TRAVERSE_NONE; |
| int key = OS.KeyEventArgs_Key(e); |
| int code = traversalCode (key, e); |
| boolean all = false; |
| switch (key) { |
| case OS.Key_Escape: { |
| all = true; |
| detail = SWT.TRAVERSE_ESCAPE; |
| break; |
| } |
| case OS.Key_Return: { |
| all = true; |
| detail = SWT.TRAVERSE_RETURN; |
| break; |
| } |
| case OS.Key_Tab: { |
| int keyboardDevice = OS.KeyboardEventArgs_KeyboardDevice (e); |
| int modifiers = OS.KeyboardDevice_Modifiers (keyboardDevice); |
| OS.GCHandle_Free (keyboardDevice); |
| boolean next = (modifiers & OS.ModifierKeys_Shift) == 0; |
| detail = next ? SWT.TRAVERSE_TAB_NEXT : SWT.TRAVERSE_TAB_PREVIOUS; |
| break; |
| } |
| case OS.Key_Up: |
| case OS.Key_Left: |
| case OS.Key_Down: |
| case OS.Key_Right: { |
| boolean next = key == OS.Key_Down || key == OS.Key_Right; |
| detail = next ? SWT.TRAVERSE_ARROW_NEXT : SWT.TRAVERSE_ARROW_PREVIOUS; |
| break; |
| } |
| case OS.Key_PageUp: |
| case OS.Key_PageDown: { |
| all = true; |
| int keyboardDevice = OS.KeyboardEventArgs_KeyboardDevice (e); |
| int modifiers = OS.KeyboardDevice_Modifiers (keyboardDevice); |
| OS.GCHandle_Free (keyboardDevice); |
| if ((modifiers & OS.ModifierKeys_Control) == 0) return false; |
| detail = key == OS.Key_PageDown ? SWT.TRAVERSE_PAGE_NEXT : SWT.TRAVERSE_PAGE_PREVIOUS; |
| break; |
| } |
| default: |
| return false; |
| } |
| Event event = new Event (); |
| event.doit = (code & detail) != 0; |
| event.detail = detail; |
| event.time = OS.InputEventArgs_Timestamp (e); |
| if (!setKeyState (event, SWT.Traverse, e)) return false; |
| Shell shell = getShell (); |
| Control control = this; |
| do { |
| if (control.traverse (event)) return true; |
| if (!event.doit && control.hooks (SWT.Traverse)) return false; |
| if (control == shell) return false; |
| control = control.parent; |
| } while (all && control != null); |
| return false; |
| } |
| |
| boolean traverse (Event event) { |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in the traverse |
| * event. If this happens, return true to stop further |
| * event processing. |
| */ |
| sendEvent (SWT.Traverse, event); |
| if (isDisposed ()) return true; |
| if (!event.doit) return false; |
| switch (event.detail) { |
| case SWT.TRAVERSE_NONE: return true; |
| case SWT.TRAVERSE_ESCAPE: return traverseEscape (); |
| case SWT.TRAVERSE_RETURN: return traverseReturn (); |
| case SWT.TRAVERSE_TAB_NEXT: return traverseGroup (true); |
| case SWT.TRAVERSE_TAB_PREVIOUS: return traverseGroup (false); |
| case SWT.TRAVERSE_ARROW_NEXT: return traverseItem (true); |
| case SWT.TRAVERSE_ARROW_PREVIOUS: return traverseItem (false); |
| case SWT.TRAVERSE_MNEMONIC: return traverseMnemonic (event.character); |
| case SWT.TRAVERSE_PAGE_NEXT: return traversePage (true); |
| case SWT.TRAVERSE_PAGE_PREVIOUS: return traversePage (false); |
| } |
| return false; |
| } |
| |
| /** |
| * Based on the argument, perform one of the expected platform |
| * traversal action. The argument should be one of the constants: |
| * <code>SWT.TRAVERSE_ESCAPE</code>, <code>SWT.TRAVERSE_RETURN</code>, |
| * <code>SWT.TRAVERSE_TAB_NEXT</code>, <code>SWT.TRAVERSE_TAB_PREVIOUS</code>, |
| * <code>SWT.TRAVERSE_ARROW_NEXT</code> and <code>SWT.TRAVERSE_ARROW_PREVIOUS</code>. |
| * |
| * @param traversal the type of traversal |
| * @return true if the traversal succeeded |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean traverse (int traversal) { |
| checkWidget (); |
| Event event = new Event (); |
| event.doit = true; |
| event.detail = traversal; |
| return traverse (event); |
| } |
| |
| boolean traverseEscape () { |
| return false; |
| } |
| |
| boolean traverseGroup (boolean next) { |
| Control root = computeTabRoot (); |
| Control group = computeTabGroup (); |
| Control [] list = root.computeTabList (); |
| int length = list.length; |
| int index = 0; |
| while (index < length) { |
| if (list [index] == group) break; |
| index++; |
| } |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in focus in |
| * or out events. Ensure that a disposed widget is |
| * not accessed. |
| */ |
| if (index == length) return false; |
| int start = index, offset = (next) ? 1 : -1; |
| while ((index = ((index + offset + length) % length)) != start) { |
| Control control = list [index]; |
| if (!control.isDisposed () && control.setTabGroupFocus ()) { |
| return true; |
| } |
| } |
| if (group.isDisposed ()) return false; |
| return group.setTabGroupFocus (); |
| } |
| |
| boolean traverseItem (boolean next) { |
| Control [] children = parent._getChildren (); |
| int length = children.length; |
| int index = 0; |
| while (index < length) { |
| if (children [index] == this) break; |
| index++; |
| } |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in focus in |
| * or out events. Ensure that a disposed widget is |
| * not accessed. |
| */ |
| if (index == length) return false; |
| int start = index, offset = (next) ? 1 : -1; |
| while ((index = (index + offset + length) % length) != start) { |
| Control child = children [index]; |
| if (!child.isDisposed () && child.isTabItem ()) { |
| if (child.setTabItemFocus ()) return true; |
| } |
| } |
| return false; |
| } |
| |
| boolean traverseMnemonic (char key) { |
| return mnemonicHit (key); |
| } |
| |
| boolean traversePage (boolean next) { |
| return false; |
| } |
| |
| boolean traverseReturn () { |
| return false; |
| } |
| |
| /** |
| * Forces all outstanding paint requests for the widget |
| * to be processed before this method returns. If there |
| * are no outstanding paint request, this method does |
| * nothing. |
| * <p> |
| * Note: This method does not cause a redraw. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #redraw() |
| * @see #redraw(int, int, int, int, boolean) |
| * @see PaintListener |
| * @see SWT#Paint |
| */ |
| public void update () { |
| checkWidget (); |
| update (false); |
| } |
| |
| void update (boolean all) { |
| checkWidget (); |
| //TODO |
| // if (OS.IsWinCE) { |
| // OS.UpdateWindow (handle); |
| // } else { |
| // int flags = OS.RDW_UPDATENOW; |
| // if (all) flags |= OS.RDW_ALLCHILDREN; |
| // OS.RedrawWindow (handle, null, 0, flags); |
| // } |
| } |
| |
| void updateBackgroundColor () { |
| // Control control = findBackgroundControl (); |
| // if (control == null) control = this; |
| // setBackgroundPixel (control.background); |
| } |
| |
| void updateBackgroundImage () { |
| // Control control = findBackgroundControl (); |
| // Image image = control != null ? control.backgroundImage : backgroundImage; |
| // setBackgroundImage (image != null ? image.handle : 0); |
| } |
| |
| void updateBackgroundMode () { |
| int oldState = state & PARENT_BACKGROUND; |
| checkBackground (); |
| if (oldState != (state & PARENT_BACKGROUND)) { |
| setBackground (); |
| } |
| } |
| |
| void updateFont (Font oldFont, Font newFont) { |
| if (getFont ().equals (oldFont)) setFont (newFont); |
| } |
| |
| void updateImages () { |
| /* Do nothing */ |
| } |
| |
| void updateLayout (boolean resize, boolean all) { |
| /* Do nothing */ |
| } |
| |
| int widgetParent () { |
| return parent.handle; |
| } |
| |
| /** |
| * Changes the parent of the widget to be the one provided if |
| * the underlying operating system supports this feature. |
| * Returns <code>true</code> if the parent is successfully changed. |
| * |
| * @param parent the new parent for the control. |
| * @return <code>true</code> if the parent is changed and <code>false</code> otherwise. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is <code>null</code></li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean setParent (Composite parent) { |
| checkWidget (); |
| if (parent == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (parent.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| if (this.parent == parent) return true; |
| if (!isReparentable ()) return false; |
| return false; |
| } |
| |
| } |
| |