| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * Copyright (c) 2000, 2002 IBM Corp. All rights reserved. |
| * This file is made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html
|
| */
|
|
|
| import org.eclipse.swt.internal.*;
|
| import org.eclipse.swt.internal.photon.*;
|
| import org.eclipse.swt.*;
|
| import org.eclipse.swt.graphics.*;
|
| import org.eclipse.swt.events.*;
|
|
|
| /** |
| * This class is the abstract superclass of all user interface objects. |
| * Widgets are created, disposed and issue notification to listeners |
| * when events occur which affect them. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>(none)</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Dispose</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is intended to be subclassed <em>only</em> |
| * within the SWT implementation. However, it has not been marked |
| * final to allow those outside of the SWT development team to implement |
| * patched versions of the class in order to get around specific |
| * limitations in advance of when those limitations can be addressed |
| * by the team. Any class built using subclassing to access the internals |
| * of this class will likely fail to compile or run between releases and |
| * may be strongly platform specific. Subclassing should not be attempted |
| * without an intimate and detailed understanding of the workings of the |
| * hierarchy. No support is provided for user-written classes which are |
| * implemented as subclasses of this class. |
| * </p> |
| * |
| * @see #checkSubclass |
| */ |
| public abstract class Widget {
|
| public int handle;
|
| int style, state;
|
| EventTable eventTable;
|
| Object data;
|
| String [] keys;
|
| Object [] values;
|
|
|
| static final int DISPOSED = 0x00000001;
|
| static final int HANDLE = 0x00000002;
|
| static final int CANVAS = 0x00000004;
|
|
|
| static final int DEFAULT_WIDTH = 64;
|
| static final int DEFAULT_HEIGHT = 64;
|
|
|
| static final char Mnemonic = '&';
|
|
|
| Widget () {
|
| /* Do nothing */
|
| }
|
|
|
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a widget which will be the parent of the new instance (cannot be null) |
| * @param style the style of widget 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 |
| * @see #checkSubclass |
| * @see #getStyle |
| */ |
| public Widget (Widget parent, int style) {
|
| checkSubclass ();
|
| checkParent (parent);
|
| this.style = style;
|
| }
|
|
|
| static int checkBits (int style, int int0, int int1, int int2, int int3, int int4, int int5) {
|
| int mask = int0 | int1 | int2 | int3 | int4 | int5;
|
| if ((style & mask) == 0) style |= int0;
|
| if ((style & int0) != 0) style = (style & ~mask) | int0;
|
| if ((style & int1) != 0) style = (style & ~mask) | int1;
|
| if ((style & int2) != 0) style = (style & ~mask) | int2;
|
| if ((style & int3) != 0) style = (style & ~mask) | int3;
|
| if ((style & int4) != 0) style = (style & ~mask) | int4;
|
| if ((style & int5) != 0) style = (style & ~mask) | int5;
|
| return style;
|
| }
|
|
|
| void checkParent (Widget parent) {
|
| if (parent == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (!parent.isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
|
| if (parent.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
|
| }
|
|
|
| /**
|
| * Checks that this class can be subclassed.
|
| * <p>
|
| * The SWT class library is intended to be subclassed
|
| * only at specific, controlled points (most notably,
|
| * <code>Composite</code> and <code>Canvas</code> when
|
| * implementing new widgets). This method enforces this
|
| * rule unless it is overridden.
|
| * </p><p>
|
| * <em>IMPORTANT:</em> By providing an implementation of this
|
| * method that allows a subclass of a class which does not
|
| * normally allow subclassing to be created, the implementer
|
| * agrees to be fully responsible for the fact that any such
|
| * subclass will likely fail between SWT releases and will be
|
| * strongly platform specific. No support is provided for
|
| * user-written classes which are implemented in this fashion.
|
| * </p><p>
|
| * The ability to subclass outside of the allowed SWT classes
|
| * is intended purely to enable those not on the SWT development
|
| * team to implement patches in order to get around specific
|
| * limitations in advance of when those limitations can be
|
| * addressed by the team. Subclassing should not be attempted
|
| * without an intimate and detailed understanding of the hierarchy.
|
| * </p>
|
| *
|
| * @exception SWTException <ul>
|
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
|
| * </ul>
|
| */
|
| protected void checkSubclass () {
|
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
|
| }
|
|
|
| /**
|
| * Throws an <code>SWTException</code> if the receiver can not
|
| * be accessed by the caller. This may include both checks on
|
| * the state of the receiver and more generally on the entire
|
| * execution context. This method <em>should</em> be called by
|
| * widget implementors to enforce the standard SWT invariants.
|
| * <p>
|
| * Currently, it is an error to invoke any method (other than
|
| * <code>isDisposed()</code>) on a widget that has had its
|
| * <code>dispose()</code> method called. It is also an error
|
| * to call widget methods from any thread that is different
|
| * from the thread that created the widget.
|
| * </p><p>
|
| * In future releases of SWT, there may be more or fewer error
|
| * checks and exceptions may be thrown for different reasons.
|
| * </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>
|
| */
|
| protected void checkWidget () {
|
| if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
|
| if (isDisposed ()) error (SWT.ERROR_WIDGET_DISPOSED);
|
| }
|
|
|
| int copyPhImage(int image) {
|
| if (image == 0) return 0;
|
| int newImage = OS.PiDuplicateImage (image, 0);
|
|
|
| /*
|
| * Bug in Photon. The image returned by PiDuplicateImage might
|
| * have the same mask_bm/alpha as the original image. The fix
|
| * is to detect this case and copy mask_bm/alpha if necessary.
|
| */
|
| PhImage_t phImage = new PhImage_t();
|
| OS.memmove (phImage, image, PhImage_t.sizeof);
|
| PhImage_t newPhImage = new PhImage_t();
|
| OS.memmove(newPhImage, newImage, PhImage_t.sizeof);
|
| if (newPhImage.mask_bm != 0 && phImage.mask_bm == newPhImage.mask_bm) {
|
| int length = newPhImage.mask_bpl * newPhImage.size_h;
|
| int ptr = OS.malloc(length);
|
| OS.memmove(ptr, newPhImage.mask_bm, length);
|
| newPhImage.mask_bm = ptr;
|
| }
|
| if (newPhImage.alpha != 0 && phImage.alpha == newPhImage.alpha) {
|
| PgAlpha_t alpha = new PgAlpha_t();
|
| OS.memmove(alpha, phImage.alpha, PgAlpha_t.sizeof);
|
| if (alpha.src_alpha_map_map != 0) {
|
| int length = alpha.src_alpha_map_bpl * alpha.src_alpha_map_dim_h;
|
| int ptr = OS.malloc(length);
|
| OS.memmove(ptr, alpha.src_alpha_map_map, length);
|
| alpha.src_alpha_map_map = ptr;
|
| }
|
| int ptr = OS.malloc(PgAlpha_t.sizeof);
|
| OS.memmove(ptr, alpha, PgAlpha_t.sizeof);
|
| newPhImage.alpha = ptr;
|
| }
|
| OS.memmove(newImage, newPhImage, PhImage_t.sizeof);
|
| return newImage;
|
| }
|
|
|
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notifed when an event of the given type occurs. When the |
| * event does occur in the widget, the listener is notified by |
| * sending it the <code>handleEvent()</code> message. |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should be notified when the event occurs |
| * |
| * @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 Listener |
| * @see #removeListener |
| */ |
| public void addListener (int eventType, Listener handler) {
|
| checkWidget();
|
| if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (eventTable == null) eventTable = new EventTable ();
|
| eventTable.hook (eventType, handler);
|
| }
|
|
|
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notifed when the widget is disposed. When the widget is |
| * disposed, the listener is notified by sending it the |
| * <code>widgetDisposed()</code> message. |
| * |
| * @param listener the listener which should be notified when the receiver is disposed |
| * |
| * @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 DisposeListener |
| * @see #removeDisposeListener |
| */ |
| public void addDisposeListener (DisposeListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| TypedListener typedListener = new TypedListener (listener);
|
| addListener (SWT.Dispose, typedListener);
|
| }
|
|
|
| void createHandle (int index) {
|
| /* Do nothing */
|
| }
|
|
|
| int createToolTip (String string, int handle, byte [] font) {
|
| if (string == null || string.length () == 0 || handle == 0) {
|
| return 0;
|
| }
|
|
|
| int shellHandle = OS.PtFindDisjoint (handle);
|
| byte [] buffer = Converter.wcsToMbcs (null, string, true);
|
| Display display = getDisplay ();
|
| int fill = display.INFO_BACKGROUND;
|
| int text_color = display.INFO_FOREGROUND;
|
| int toolTipHandle = OS.PtInflateBalloon (shellHandle, handle, OS.Pt_BALLOON_RIGHT, buffer, font, fill, text_color);
|
|
|
| /*
|
| * Feature in Photon. The position of the inflated balloon
|
| * is relative to the widget position and not to the cursor
|
| * position. The fix is to re-position the balloon.
|
| */
|
| int ig = OS.PhInputGroup (0);
|
| PhCursorInfo_t info = new PhCursorInfo_t ();
|
| OS.PhQueryCursor ((short)ig, info);
|
| short [] absX = new short [1], absY = new short [1];
|
| OS.PtGetAbsPosition (shellHandle, absX, absY);
|
| int x = info.pos_x - absX [0] + 16;
|
| int y = info.pos_y - absY [0] + 16;
|
| PhArea_t shellArea = new PhArea_t ();
|
| OS.PtWidgetArea (shellHandle, shellArea);
|
| PhArea_t toolTipArea = new PhArea_t ();
|
| OS.PtWidgetArea (toolTipHandle, toolTipArea);
|
| x = Math.max (0, Math.min (x, shellArea.size_w - toolTipArea.size_w));
|
| y = Math.max (0, Math.min (y, shellArea.size_h - toolTipArea.size_h));
|
| PhPoint_t pt = new PhPoint_t ();
|
| pt.x = (short) x;
|
| pt.y = (short) y;
|
| int ptr = OS.malloc (PhPoint_t.sizeof);
|
| OS.memmove (ptr, pt, PhPoint_t.sizeof);
|
| OS.PtSetResource (toolTipHandle, OS.Pt_ARG_POS, ptr, 0);
|
| OS.free (ptr);
|
|
|
| return toolTipHandle;
|
| }
|
|
|
| void createWidget (int index) {
|
| createHandle (index);
|
| hookEvents ();
|
| register ();
|
| }
|
|
|
| void deregister () {
|
| if (handle == 0) return;
|
| WidgetTable.remove (handle);
|
| }
|
|
|
| void destroyToolTip (int toolTipHandle) {
|
| if (toolTipHandle != 0) OS.PtDestroyWidget (toolTipHandle);
|
| }
|
|
|
| void destroyWidget () {
|
| int topHandle = topHandle ();
|
| releaseHandle ();
|
| if (topHandle != 0) {
|
| OS.PtDestroyWidget (topHandle);
|
| }
|
| }
|
|
|
| /** |
| * Disposes of the operating system resources associated with |
| * the receiver and all its descendents. After this method has |
| * been invoked, the receiver and all descendents will answer |
| * <code>true</code> when sent the message <code>isDisposed()</code>. |
| * Any internal connections between the widgets in the tree will |
| * have been removed to facilitate garbage collection. |
| * <p> |
| * NOTE: This method is not called recursively on the descendents |
| * of the receiver. This means that, widget implementers can not |
| * detect when a widget is being disposed of by re-implementing |
| * this method, but should instead listen for the <code>Dispose</code> |
| * event. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #addDisposeListener |
| * @see #removeDisposeListener |
| * @see #checkWidget |
| */ |
| public void dispose () {
|
| /*
|
| * Note: It is valid to attempt to dispose a widget
|
| * more than once. If this happens, fail silently.
|
| */
|
| if (isDisposed()) return;
|
| if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
|
| releaseChild ();
|
| releaseWidget ();
|
| destroyWidget ();
|
| }
|
|
|
| static void error (int code) {
|
| SWT.error(code);
|
| }
|
|
|
| /** |
| * Returns the application defined widget data associated |
| * with the receiver, or null if it has not been set. The |
| * <em>widget data</em> is a single, unnamed field that is |
| * stored with every widget. |
| * <p> |
| * Applications may put arbitrary objects in this field. If |
| * the object stored in the widget data needs to be notified |
| * when the widget is disposed of, it is the application's |
| * responsibility to hook the Dispose event on the widget and |
| * do so. |
| * </p> |
| * |
| * @return the widget data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - when the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li> |
| * </ul> |
| * |
| * @see #setData |
| */ |
| public Object getData () {
|
| checkWidget();
|
| return data;
|
| }
|
|
|
| /** |
| * Returns the application defined property of the receiver |
| * with the specified name, or null if it has not been set. |
| * <p> |
| * Applications may have associated arbitrary objects with the |
| * receiver in this fashion. If the objects stored in the |
| * properties need to be notified when the widget is disposed |
| * of, it is the application's responsibility to hook the |
| * Dispose event on the widget and do so. |
| * </p> |
| * |
| * @param key the name of the property |
| * @return the value of the property or null if it has not been set |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the key 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 #setData |
| */ |
| public Object getData (String key) {
|
| checkWidget();
|
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (keys == null) return null;
|
| for (int i=0; i<keys.length; i++) {
|
| if (keys [i].equals (key)) return values [i];
|
| }
|
| return null;
|
| }
|
|
|
| /** |
| * Returns the <code>Display</code> that is associated with |
| * the receiver. |
| * <p> |
| * A widget's display is either provided when it is created |
| * (for example, top level <code>Shell</code>s) or is the |
| * same as its parent's display. |
| * </p> |
| * |
| * @return the receiver's display |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - 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 abstract Display getDisplay ();
|
|
|
| String getName () {
|
| String string = getClass ().getName ();
|
| int index = string.length ();
|
| while (--index > 0 && string.charAt (index) != '.');
|
| return string.substring (index + 1, string.length ());
|
| }
|
|
|
| String getNameText () {
|
| return "";
|
| }
|
|
|
| /** |
| * Returns the receiver's style information. |
| * <p> |
| * Note that the value which is returned by this method <em>may |
| * not match</em> the value which was provided to the constructor |
| * when the receiver was created. This can occur when the underlying |
| * operating system does not support a particular combination of |
| * requested styles. For example, if the platform widget used to |
| * implement a particular SWT widget always has scroll bars, the |
| * result of calling this method would always have the |
| * <code>SWT.H_SCROLL</code> and <code>SWT.V_SCROLL</code> bits set. |
| * </p> |
| * |
| * @return the style bits |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - 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 getStyle () {
|
| checkWidget();
|
| return style;
|
| }
|
|
|
| boolean hooks (int eventType) {
|
| if (eventTable == null) return false;
|
| return eventTable.hooks (eventType);
|
| }
|
|
|
| void hookEvents () {
|
| /* Do nothing */
|
| }
|
|
|
| /** |
| * Returns <code>true</code> if the widget has been disposed, |
| * and <code>false</code> otherwise. |
| * <p> |
| * This method gets the dispose state for the widget. |
| * When a widget has been disposed, it is an error to |
| * invoke any other method using the widget. |
| * </p> |
| * |
| * @return <code>true</code> when the widget is disposed and <code>false</code> otherwise |
| */ |
| public boolean isDisposed () {
|
| if (handle != 0) return false;
|
| if ((state & HANDLE) != 0) return true;
|
| return (state & DISPOSED) != 0;
|
| }
|
|
|
| boolean isValidSubclass () {
|
| return Display.isValidClass (getClass ());
|
| }
|
|
|
| protected boolean isListening (int eventType) {
|
| checkWidget();
|
| return hooks (eventType);
|
| }
|
|
|
| boolean isValidThread () {
|
| return getDisplay ().isValidThread ();
|
| }
|
|
|
| /** |
| * Notifies all of the receiver's listeners for events |
| * of the given type that one such event has occurred by |
| * invoking their <code>handleEvent()</code> method. |
| * |
| * @param eventType the type of event which has occurred |
| * @param event the event data |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if 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> |
| */ |
| public void notifyListeners (int eventType, Event event) {
|
| checkWidget();
|
| if (event == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| sendEvent (eventType, event);
|
| }
|
|
|
| void postEvent (int eventType, Event event) {
|
| if (eventTable == null) return;
|
| Display display = getDisplay ();
|
| event.type = eventType;
|
| event.widget = this;
|
| event.display = display;
|
| if (event.time == 0) {
|
| event.time = (int) System.currentTimeMillis ();
|
| }
|
| display.postEvent (event);
|
| }
|
|
|
| void postEvent (int eventType) {
|
| if (eventTable == null) return;
|
| postEvent (eventType, new Event ());
|
| }
|
|
|
| int processActivate (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processArm (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processDefaultSelection (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processFocusIn (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processFocusOut (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processHide (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processHotkey (int data, int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processKey (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processEvent (int widget, int data, int info) {
|
| switch (data) {
|
| case SWT.Activate: return processActivate (info);
|
| case SWT.Arm: return processArm (info);
|
| // case SWT.Dispose: return processDispose (info);
|
| case SWT.DefaultSelection: return processDefaultSelection (info);
|
| case SWT.FocusIn: return processFocusIn (info);
|
| case SWT.FocusOut: return processFocusOut (info);
|
| // case SWT.Help: return processHelp (info);
|
| case SWT.Hide: return processHide (info);
|
| case SWT.KeyDown:
|
| case SWT.KeyUp: return processKey (info);
|
| case SWT.Modify: return processModify (info);
|
| case SWT.MouseDown:
|
| case SWT.MouseMove:
|
| case SWT.MouseUp: return processMouse (info);
|
| case SWT.MouseEnter: return processMouseEnter (info);
|
| // case SWT.MouseExit: return processMouseOut (info);
|
| case SWT.Move: return processMove (info);
|
| // case SWT.Paint: return processPaint (info);
|
| case SWT.Resize: return processResize (info);
|
| case SWT.Show: return processShow (info);
|
| case SWT.Selection: return processSelection (info);
|
| case SWT.Verify: return processVerify (info);
|
| }
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processModify (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processMouse (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processMouseEnter (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processMove (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processPaint (int damage) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processResize (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processShow (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processSelection (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processVerify (int info) {
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| void releaseChild () {
|
| /* Do nothing */
|
| }
|
|
|
| void register () {
|
| if (handle == 0) return;
|
| WidgetTable.put (handle, this);
|
| }
|
|
|
| void releaseHandle () {
|
| handle = 0;
|
| state |= DISPOSED;
|
| }
|
|
|
| void releaseWidget () {
|
| sendEvent (SWT.Dispose);
|
| deregister ();
|
| eventTable = null;
|
| data = null;
|
| keys = null;
|
| values = null;
|
| }
|
|
|
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notifed when an event of the given type occurs. |
| * |
| * @param eventType the type of event to listen for |
| * @param listener the listener which should no longer be notified when the event occurs |
| * |
| * @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 Listener |
| * @see #addListener |
| */ |
| public void removeListener (int eventType, Listener handler) {
|
| checkWidget();
|
| if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (eventTable == null) return;
|
| eventTable.unhook (eventType, handler);
|
| }
|
|
|
| /**
|
| * Removes the listener from the collection of listeners who will
|
| * be notifed when an event of the given type occurs.
|
| * <p>
|
| * <b>IMPORTANT:</b> This method is <em>not</em> part of the SWT
|
| * public API. It is marked public only so that it can be shared
|
| * within the packages provided by SWT. It should never be
|
| * referenced from application code.
|
| * </p>
|
| *
|
| * @param eventType the type of event to listen for
|
| * @param listener the listener which should no longer be notified when the event occurs
|
| *
|
| * @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 Listener
|
| * @see #addListener
|
| */
|
| protected void removeListener (int eventType, SWTEventListener handler) {
|
| checkWidget();
|
| if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (eventTable == null) return;
|
| eventTable.unhook (eventType, handler);
|
| }
|
|
|
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notifed when the widget is disposed. |
| * |
| * @param listener the listener which should no longer be notified when the receiver is disposed |
| * |
| * @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 DisposeListener |
| * @see #addDisposeListener |
| */ |
| public void removeDisposeListener (DisposeListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (eventTable == null) return;
|
| eventTable.unhook (SWT.Dispose, listener);
|
| }
|
|
|
| void replaceMnemonic (int mnemonic, boolean normal, boolean alt) {
|
| Display display = getDisplay ();
|
| int [] args = {OS.Pt_ARG_ACCEL_KEY, 0, 0};
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| if (args [1] != 0) {
|
| int length = OS.strlen (args [1]);
|
| if (length > 0) {
|
| byte [] buffer = new byte [length];
|
| OS.memmove (buffer, args [1], length);
|
| char [] accelText = Converter.mbcsToWcs (null, buffer);
|
| if (accelText.length > 0) {
|
| char key = Character.toLowerCase (accelText [0]);
|
| if (normal) {
|
| OS.PtRemoveHotkeyHandler (handle, key, 0, (short)0, SWT.Activate, display.windowProc);
|
| }
|
| if (alt) {
|
| OS.PtRemoveHotkeyHandler (handle, key, OS.Pk_KM_Alt, (short)0, SWT.Activate, display.windowProc);
|
| }
|
| }
|
| }
|
| }
|
| if (mnemonic == 0) return;
|
| char key = Character.toLowerCase ((char)mnemonic);
|
| if (normal) {
|
| OS.PtAddHotkeyHandler (handle, key, 0, (short)0, SWT.Activate, display.windowProc);
|
| }
|
| if (alt) {
|
| OS.PtAddHotkeyHandler (handle, key, OS.Pk_KM_Alt, (short)0, SWT.Activate, display.windowProc);
|
| }
|
| }
|
|
|
| void sendEvent (int eventType, Event event) {
|
| if (eventTable == null) return;
|
| Display display = getDisplay ();
|
| event.widget = this;
|
| event.type = eventType;
|
| event.display = display;
|
| if (event.time == 0) {
|
| event.time = (int) System.currentTimeMillis ();
|
| }
|
| eventTable.sendEvent (event);
|
| }
|
|
|
| void sendEvent (int eventType) {
|
| if (eventTable == null) return;
|
| sendEvent (eventType, new Event ());
|
| }
|
|
|
| void sendEvent (Event event) {
|
| if (eventTable == null) return;
|
| eventTable.sendEvent (event);
|
| }
|
|
|
| /** |
| * Sets the application defined widget data associated |
| * with the receiver to be the argument. The <em>widget |
| * data</em> is a single, unnamed field that is stored |
| * with every widget. |
| * <p> |
| * Applications may put arbitrary objects in this field. If |
| * the object stored in the widget data needs to be notified |
| * when the widget is disposed of, it is the application's |
| * responsibility to hook the Dispose event on the widget and |
| * do so. |
| * </p> |
| * |
| * @param data the widget data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - when the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li> |
| * </ul> |
| */ |
| public void setData (Object data) {
|
| checkWidget();
|
| this.data = data;
|
| }
|
|
|
| /** |
| * Sets the application defined property of the receiver |
| * with the specified name to the given value. |
| * <p> |
| * Applications may associate arbitrary objects with the |
| * receiver in this fashion. If the objects stored in the |
| * properties need to be notified when the widget is disposed |
| * of, it is the application's responsibility to hook the |
| * Dispose event on the widget and do so. |
| * </p> |
| * |
| * @param key the name of the property |
| * @param value the new value for the property |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the key 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 #getData |
| */ |
| public void setData (String key, Object value) {
|
| checkWidget();
|
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
|
|
|
| /* Remove the key/value pair */
|
| if (value == null) {
|
| if (keys == null) return;
|
| int index = 0;
|
| while (index < keys.length && !keys [index].equals (key)) index++;
|
| if (index == keys.length) return;
|
| if (keys.length == 1) {
|
| keys = null;
|
| values = null;
|
| } else {
|
| String [] newKeys = new String [keys.length - 1];
|
| Object [] newValues = new Object [values.length - 1];
|
| System.arraycopy (keys, 0, newKeys, 0, index);
|
| System.arraycopy (keys, index + 1, newKeys, index, newKeys.length - index);
|
| System.arraycopy (values, 0, newValues, 0, index);
|
| System.arraycopy (values, index + 1, newValues, index, newValues.length - index);
|
| keys = newKeys;
|
| values = newValues;
|
| }
|
| return;
|
| }
|
|
|
| /* Add the key/value pair */
|
| if (keys == null) {
|
| keys = new String [] {key};
|
| values = new Object [] {value};
|
| return;
|
| }
|
| for (int i=0; i<keys.length; i++) {
|
| if (keys [i].equals (key)) {
|
| values [i] = value;
|
| return;
|
| }
|
| }
|
| String [] newKeys = new String [keys.length + 1];
|
| Object [] newValues = new Object [values.length + 1];
|
| System.arraycopy (keys, 0, newKeys, 0, keys.length);
|
| System.arraycopy (values, 0, newValues, 0, values.length);
|
| newKeys [keys.length] = key;
|
| newValues [values.length] = value;
|
| keys = newKeys;
|
| values = newValues;
|
| }
|
|
|
| void setKeyState(Event event, PhKeyEvent_t ke) {
|
| int key_mods = ke.key_mods;
|
| int button_state = ke.button_state;
|
| if ((key_mods & OS.Pk_KM_Alt) != 0) event.stateMask |= SWT.ALT;
|
| if ((key_mods & OS.Pk_KM_Shift) != 0) event.stateMask |= SWT.SHIFT;
|
| if ((key_mods & OS.Pk_KM_Ctrl) != 0) event.stateMask |= SWT.CONTROL;
|
| if ((button_state & OS.Ph_BUTTON_SELECT) != 0) event.stateMask |= SWT.BUTTON1;
|
| if ((button_state & OS.Ph_BUTTON_ADJUST) != 0) event.stateMask |= SWT.BUTTON2;
|
| if ((button_state & OS.Ph_BUTTON_MENU) != 0) event.stateMask |= SWT.BUTTON3;
|
| switch (event.type) {
|
| case SWT.KeyDown:
|
| case SWT.Traverse:
|
| if (event.keyCode == SWT.ALT) event.stateMask &= ~SWT.ALT;
|
| if (event.keyCode == SWT.SHIFT) event.stateMask &= ~SWT.SHIFT;
|
| if (event.keyCode == SWT.CONTROL) event.stateMask &= ~SWT.CONTROL;
|
| break;
|
| case SWT.KeyUp:
|
| if (event.keyCode == SWT.ALT) event.stateMask |= SWT.ALT;
|
| if (event.keyCode == SWT.SHIFT) event.stateMask |= SWT.SHIFT;
|
| if (event.keyCode == SWT.CONTROL) event.stateMask |= SWT.CONTROL;
|
| break;
|
| }
|
| }
|
|
|
| void setMouseState(int type, Event event, PhPointerEvent_t pe) {
|
| int key_mods = pe.key_mods;
|
| int buttons = pe.buttons;
|
| int button_state = pe.button_state;
|
| if ((key_mods & OS.Pk_KM_Alt) != 0) event.stateMask |= SWT.ALT;
|
| if ((key_mods & OS.Pk_KM_Shift) != 0) event.stateMask |= SWT.SHIFT;
|
| if ((key_mods & OS.Pk_KM_Ctrl) != 0) event.stateMask |= SWT.CONTROL;
|
| if ((button_state & OS.Ph_BUTTON_SELECT) != 0) event.stateMask |= SWT.BUTTON1;
|
| if ((button_state & OS.Ph_BUTTON_ADJUST) != 0) event.stateMask |= SWT.BUTTON2;
|
| if ((button_state & OS.Ph_BUTTON_MENU) != 0) event.stateMask |= SWT.BUTTON3;
|
| switch (type) {
|
| case OS.Ph_EV_BUT_PRESS:
|
| if (buttons == OS.Ph_BUTTON_SELECT) event.stateMask &= ~SWT.BUTTON1;
|
| if (buttons == OS.Ph_BUTTON_ADJUST) event.stateMask &= ~SWT.BUTTON2;
|
| if (buttons == OS.Ph_BUTTON_MENU) event.stateMask &= ~SWT.BUTTON3;
|
| break;
|
| case OS.Ph_EV_BUT_RELEASE:
|
| case OS.Ph_EV_DRAG:
|
| if (buttons == OS.Ph_BUTTON_SELECT) event.stateMask |= SWT.BUTTON1;
|
| if (buttons == OS.Ph_BUTTON_ADJUST) event.stateMask |= SWT.BUTTON2;
|
| if (buttons == OS.Ph_BUTTON_MENU) event.stateMask |= SWT.BUTTON3;
|
| break;
|
| }
|
| }
|
|
|
| /** |
| * Returns a string containing a concise, human-readable |
| * description of the receiver. |
| * |
| * @return a string representation of the receiver |
| */ |
| public String toString () {
|
| String string = "*Disposed*";
|
| if (!isDisposed ()) {
|
| string = "*Wrong Thread*";
|
| if (isValidThread ()) string = getNameText ();
|
| }
|
| return getName () + " {" + string + "}";
|
| }
|
|
|
| int topHandle () {
|
| return handle;
|
| }
|
|
|
| }
|