bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Widget.java - platform/eclipse.platform.swt - Git at Google

 package org.eclipse.swt.widgets;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved
  */

 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.*;

 import java.util.EventListener;

 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 */
 }

 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);
 }

 protected void checkSubclass () {
 	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
 }

 protected void checkWidget () {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 }

 int copyPhImage(int image) {
 	if (image == 0) return 0;
 	int imageHandle = OS.PiDuplicateImage (image, 0);
 	/* Bug in Photon - The image returned by PiDuplicateImage
 	has the same mask_bm as the original image.
 	*/
 	PhImage_t phImage = new PhImage_t();
 	OS.memmove (phImage, imageHandle, PhImage_t.sizeof);
 	if (phImage.mask_bm != 0) {
 		int length = phImage.mask_bpl * phImage.size_h;
 		int ptr = OS.malloc (length);
 		OS.memmove(ptr, phImage.mask_bm, length);
 		phImage.mask_bm = ptr;
 		OS.memmove (imageHandle, phImage, PhImage_t.sizeof);
 	}
 	return imageHandle;
 }

 public void addListener (int eventType, Listener handler) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) eventTable = new EventTable ();
 	eventTable.hook (eventType, handler);
 }

 public void addDisposeListener (DisposeListener listener) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
 	TypedListener typedListener = new TypedListener (listener);
 	addListener (SWT.Dispose, typedListener);
 }

 void createHandle (int index) {
 	/* Do nothing */
 }

 void createWidget (int index) {
 	createHandle (index);
 	hookEvents ();
 	register ();
 }

 void deregister () {
 	if (handle == 0) return;
 	WidgetTable.remove (handle);
 }

 void destroyWidget () {
 	int topHandle = topHandle ();
 	releaseHandle ();
 	if (topHandle != 0) {
 		OS.PtDestroyWidget (topHandle);
 	}
 }

 public void dispose () {
 	/*
 	* Note:  It is valid to attempt to dispose a widget
 	* more than once.  If this happens, fail silently.
 	*/
 	if (!isValidWidget ()) return;
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	releaseChild ();
 	releaseWidget ();
 	destroyWidget ();
 }

 static void error (int code) {
 	SWT.error(code);
 }

 public Object getData () {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	return data;
 }

 public Object getData (String key) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	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;
 }

 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 "";
 }

 public int getStyle () {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	return style;
 }

 boolean hooks (int eventType) {
 	if (eventTable == null) return false;
 	return eventTable.hooks (eventType);
 }

 void hookEvents () {
 	/* Do nothing */
 }

 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) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	return hooks (eventType);
 }

 boolean isValidThread () {
 	return getDisplay ().isValidThread ();
 }

 boolean isValidWidget () {
 	if (handle != 0) return true;
 	if ((state & HANDLE) != 0) return false;
 	return (state & DISPOSED) == 0;
 }

 public void notifyListeners (int eventType, Event event) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	if (event == null) error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) return;
 	event.type = eventType;
 	event.widget = this;
 	eventTable.sendEvent (event);
 }

 void postEvent (int eventType) {
 	if (eventTable == null) return;
 	postEvent (eventType, new Event ());
 }

 void postEvent (int eventType, Event event) {
 	if (eventTable == null) return;
 	event.type = eventType;
 	event.widget = this;
 	if (event.time == 0) {
 		event.time = (int) System.currentTimeMillis ();
 	}
 	getDisplay ().postEvent (event);
 }

 int processActivate (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;
 }

 public void removeListener (int eventType, Listener handler) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) return;
 	eventTable.unhook (eventType, handler);
 }

 protected void removeListener (int eventType, EventListener handler) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) return;
 	eventTable.unhook (eventType, handler);
 }

 public void removeDisposeListener (DisposeListener listener) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) return;
 	eventTable.unhook (SWT.Dispose, listener);
 }

 void replaceMnemonic (int mnemonic, int mods) {
 	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]);
 				OS.PtRemoveHotkeyHandler (handle, key, 0, (short)0, SWT.Activate, display.windowProc);
 			}
 		}
 	}
 	if (mnemonic == 0) return;
 	char key = Character.toLowerCase ((char)mnemonic);
 	OS.PtAddHotkeyHandler (handle, key, mods, (short)0, SWT.Activate, display.windowProc);
 }

 void sendEvent (int eventType) {
 	if (eventTable == null) return;
 	sendEvent (eventType, new Event ());
 }

 void sendEvent (int eventType, Event event) {
 	if (eventTable == null) return;
 	event.widget = this;
 	event.type = eventType;
 	if (event.time == 0) {
 		event.time = (int) System.currentTimeMillis ();
 	}
 	eventTable.sendEvent (event);
 }

 public void setData (Object data) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	this.data = data;
 }

 public void setData (String key, Object value) {
 	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
 	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
 	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;
 }

 public String toString () {
 	String string = "*Disposed*";
 	if (!isDisposed ()) {
 		string = "*Wrong Thread*";
 		if (isValidThread ()) string = getNameText ();
 	}
 	return getName () + " {" + string + "}";
 }

 int topHandle () {
 	return handle;
 }

 }
	package org.eclipse.swt.widgets;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved
	*/

	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.*;

	import java.util.EventListener;

	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 */
	}

	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);
	}

	protected void checkSubclass () {
	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
	}

	protected void checkWidget () {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	}

	int copyPhImage(int image) {
	if (image == 0) return 0;
	int imageHandle = OS.PiDuplicateImage (image, 0);
	/* Bug in Photon - The image returned by PiDuplicateImage
	has the same mask_bm as the original image.
	*/
	PhImage_t phImage = new PhImage_t();
	OS.memmove (phImage, imageHandle, PhImage_t.sizeof);
	if (phImage.mask_bm != 0) {
	int length = phImage.mask_bpl * phImage.size_h;
	int ptr = OS.malloc (length);
	OS.memmove(ptr, phImage.mask_bm, length);
	phImage.mask_bm = ptr;
	OS.memmove (imageHandle, phImage, PhImage_t.sizeof);
	}
	return imageHandle;
	}

	public void addListener (int eventType, Listener handler) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) eventTable = new EventTable ();
	eventTable.hook (eventType, handler);
	}

	public void addDisposeListener (DisposeListener listener) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
	TypedListener typedListener = new TypedListener (listener);
	addListener (SWT.Dispose, typedListener);
	}

	void createHandle (int index) {
	/* Do nothing */
	}

	void createWidget (int index) {
	createHandle (index);
	hookEvents ();
	register ();
	}

	void deregister () {
	if (handle == 0) return;
	WidgetTable.remove (handle);
	}

	void destroyWidget () {
	int topHandle = topHandle ();
	releaseHandle ();
	if (topHandle != 0) {
	OS.PtDestroyWidget (topHandle);
	}
	}

	public void dispose () {
	/*
	* Note: It is valid to attempt to dispose a widget
	* more than once. If this happens, fail silently.
	*/
	if (!isValidWidget ()) return;
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	releaseChild ();
	releaseWidget ();
	destroyWidget ();
	}

	static void error (int code) {
	SWT.error(code);
	}

	public Object getData () {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	return data;
	}

	public Object getData (String key) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	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;
	}

	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 "";
	}

	public int getStyle () {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	return style;
	}

	boolean hooks (int eventType) {
	if (eventTable == null) return false;
	return eventTable.hooks (eventType);
	}

	void hookEvents () {
	/* Do nothing */
	}

	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) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	return hooks (eventType);
	}

	boolean isValidThread () {
	return getDisplay ().isValidThread ();
	}

	boolean isValidWidget () {
	if (handle != 0) return true;
	if ((state & HANDLE) != 0) return false;
	return (state & DISPOSED) == 0;
	}

	public void notifyListeners (int eventType, Event event) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	if (event == null) error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) return;
	event.type = eventType;
	event.widget = this;
	eventTable.sendEvent (event);
	}

	void postEvent (int eventType) {
	if (eventTable == null) return;
	postEvent (eventType, new Event ());
	}

	void postEvent (int eventType, Event event) {
	if (eventTable == null) return;
	event.type = eventType;
	event.widget = this;
	if (event.time == 0) {
	event.time = (int) System.currentTimeMillis ();
	}
	getDisplay ().postEvent (event);
	}

	int processActivate (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;
	}

	public void removeListener (int eventType, Listener handler) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) return;
	eventTable.unhook (eventType, handler);
	}

	protected void removeListener (int eventType, EventListener handler) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	if (handler == null) error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) return;
	eventTable.unhook (eventType, handler);
	}

	public void removeDisposeListener (DisposeListener listener) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) return;
	eventTable.unhook (SWT.Dispose, listener);
	}

	void replaceMnemonic (int mnemonic, int mods) {
	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]);
	OS.PtRemoveHotkeyHandler (handle, key, 0, (short)0, SWT.Activate, display.windowProc);
	}
	}
	}
	if (mnemonic == 0) return;
	char key = Character.toLowerCase ((char)mnemonic);
	OS.PtAddHotkeyHandler (handle, key, mods, (short)0, SWT.Activate, display.windowProc);
	}

	void sendEvent (int eventType) {
	if (eventTable == null) return;
	sendEvent (eventType, new Event ());
	}

	void sendEvent (int eventType, Event event) {
	if (eventTable == null) return;
	event.widget = this;
	event.type = eventType;
	if (event.time == 0) {
	event.time = (int) System.currentTimeMillis ();
	}
	eventTable.sendEvent (event);
	}

	public void setData (Object data) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	this.data = data;
	}

	public void setData (String key, Object value) {
	if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
	if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
	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;
	}

	public String toString () {
	String string = "Disposed";
	if (!isDisposed ()) {
	string = "Wrong Thread";
	if (isValidThread ()) string = getNameText ();
	}
	return getName () + " {" + string + "}";
	}

	int topHandle () {
	return handle;
	}

	}