diff dwt/widgets/Widget.d @ 25:fc2b263b8a3f

Merged back the System.arraycopy and use a System class
author Frank Benoit <benoit@tionex.de>
date Tue, 08 Jan 2008 01:23:25 +0100
parents
children 09f5459a5014
line wrap: on
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/widgets/Widget.d	Tue Jan 08 01:23:25 2008 +0100
@@ -0,0 +1,1532 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 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
+ *******************************************************************************/
+module dwt.widgets.Widget;
+
+class Widget{
+}
+/++
+import dwt.SWT;
+import dwt.internal.*;
+import dwt.internal.gtk.*;
+import dwt.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 {
+	/**
+	 * the handle to the OS resource
+	 * (Warning: This field is platform dependent)
+	 * <p>
+	 * <b>IMPORTANT:</b> This field 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 is not available on all
+	 * platforms and should never be accessed from application code.
+	 * </p>
+	 */
+	public int /*long*/ handle;
+	int style, state;
+	Display display;
+	EventTable eventTable;
+	Object data;
+
+	/* Global state flags */
+	static final int DISPOSED = 1<<0;
+	static final int CANVAS = 1<<1;
+	static final int KEYED_DATA = 1<<2;
+	static final int HANDLE = 1<<3;
+	static final int DISABLED = 1<<4;
+	static final int MENU = 1<<5;
+	static final int OBSCURED = 1<<6;
+	static final int MOVED = 1<<7;
+	static final int RESIZED = 1<<8;
+	static final int ZERO_WIDTH = 1<<9;
+	static final int ZERO_HEIGHT = 1<<10;
+	static final int HIDDEN = 1<<11;
+	static final int FOREGROUND = 1<<12;
+	static final int BACKGROUND = 1<<13;
+	static final int FONT = 1<<14;
+	static final int PARENT_BACKGROUND = 1<<15;
+	static final int THEME_BACKGROUND = 1<<16;
+
+	/* A layout was requested on this widget */
+	static final int LAYOUT_NEEDED	= 1<<17;
+
+	/* The preferred size of a child has changed */
+	static final int LAYOUT_CHANGED = 1<<18;
+
+	/* A layout was requested in this widget hierachy */
+	static final int LAYOUT_CHILD = 1<<19;
+
+	/* More global state flags */
+	static final int RELEASED = 1<<20;
+	static final int DISPOSE_SENT = 1<<21;
+	static final int FOREIGN_HANDLE = 1<<22;
+	static final int DRAG_DETECT = 1<<23;
+
+	/* Default size for widgets */
+	static final int DEFAULT_WIDTH	= 64;
+	static final int DEFAULT_HEIGHT	= 64;
+
+	/* GTK signals data */
+	static final int ACTIVATE = 1;
+	static final int BUTTON_PRESS_EVENT = 2;
+	static final int BUTTON_PRESS_EVENT_INVERSE = 3;
+	static final int BUTTON_RELEASE_EVENT = 4;
+	static final int BUTTON_RELEASE_EVENT_INVERSE = 5;
+	static final int CHANGED = 6;
+	static final int CHANGE_VALUE = 7;
+	static final int CLICKED = 8;
+	static final int COMMIT = 9;
+	static final int CONFIGURE_EVENT = 10;
+	static final int DELETE_EVENT = 11;
+	static final int DELETE_RANGE = 12;
+	static final int DELETE_TEXT = 13;
+	static final int ENTER_NOTIFY_EVENT = 14;
+	static final int EVENT = 15;
+	static final int EVENT_AFTER = 16;
+	static final int EXPAND_COLLAPSE_CURSOR_ROW = 17;
+	static final int EXPOSE_EVENT = 18;
+	static final int EXPOSE_EVENT_INVERSE = 19;
+	static final int FOCUS = 20;
+	static final int FOCUS_IN_EVENT = 21;
+	static final int FOCUS_OUT_EVENT = 22;
+	static final int GRAB_FOCUS = 23;
+	static final int HIDE = 24;
+	static final int INPUT = 25;
+	static final int INSERT_TEXT = 26;
+	static final int KEY_PRESS_EVENT = 27;
+	static final int KEY_RELEASE_EVENT = 28;
+	static final int LEAVE_NOTIFY_EVENT = 29;
+	static final int MAP = 30;
+	static final int MAP_EVENT = 31;
+	static final int MNEMONIC_ACTIVATE = 32;
+	static final int MOTION_NOTIFY_EVENT = 33;
+	static final int MOTION_NOTIFY_EVENT_INVERSE = 34;
+	static final int MOVE_FOCUS = 35;
+	static final int OUTPUT = 36;
+	static final int POPUP_MENU = 37;
+	static final int PREEDIT_CHANGED = 38;
+	static final int REALIZE = 39;
+	static final int ROW_ACTIVATED = 40;
+	static final int SCROLL_CHILD = 41;
+	static final int SCROLL_EVENT = 42;
+	static final int SELECT = 43;
+	static final int SHOW = 44;
+	static final int SHOW_HELP = 45;
+	static final int SIZE_ALLOCATE = 46;
+	static final int STYLE_SET = 47;
+	static final int SWITCH_PAGE = 48;
+	static final int TEST_COLLAPSE_ROW = 49;
+	static final int TEST_EXPAND_ROW = 50;
+	static final int TEXT_BUFFER_INSERT_TEXT = 51;
+	static final int TOGGLED = 52;
+	static final int UNMAP = 53;
+	static final int UNMAP_EVENT = 54;
+	static final int UNREALIZE = 55;
+	static final int VALUE_CHANGED = 56;
+	static final int VISIBILITY_NOTIFY_EVENT = 57;
+	static final int WINDOW_STATE_EVENT = 58;
+	static final int ACTIVATE_INVERSE = 59;
+	static final int DAY_SELECTED = 60;
+	static final int MONTH_CHANGED = 61;
+	static final int LAST_SIGNAL = 62;
+
+/**
+ * Prevents uninitialized instances from being created outside the package.
+ */
+Widget () {}
+
+/**
+ * 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>
+ *    <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</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;
+	display = parent.display;
+}
+
+void _addListener (int eventType, Listener listener) {
+	if (eventTable == null) eventTable = new EventTable ();
+	eventTable.hook (eventType, listener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified 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. The event
+ * type is one of the event constants defined in class <code>SWT</code>.
+ *
+ * @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 SWT
+ * @see #removeListener(int, Listener)
+ * @see #notifyListeners
+ */
+public void addListener (int eventType, Listener listener) {
+	checkWidget ();
+	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+	_addListener (eventType, listener);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified 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);
+}
+
+int /*long*/ paintWindow () {
+	return 0;
+}
+
+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;
+}
+
+int /*long*/ cellDataProc (int /*long*/ tree_column, int /*long*/ cell, int /*long*/ tree_model, int /*long*/ iter, int /*long*/ data) {
+	return 0;
+}
+
+void checkOpen () {
+	/* Do nothing */
+}
+
+void checkOrientation (Widget parent) {
+	style &= ~SWT.MIRRORED;
+	if ((style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT)) == 0) {
+		if (parent != null) {
+			if ((parent.style & SWT.LEFT_TO_RIGHT) != 0) style |= SWT.LEFT_TO_RIGHT;
+			if ((parent.style & SWT.RIGHT_TO_LEFT) != 0) style |= SWT.RIGHT_TO_LEFT;
+		}
+	}
+	style = checkBits (style, SWT.LEFT_TO_RIGHT, SWT.RIGHT_TO_LEFT, 0, 0, 0, 0);
+}
+
+/**
+ * Throws an exception if the specified widget can not be
+ * used as a parent for the receiver.
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ *    <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ */
+void checkParent (Widget parent) {
+	if (parent == null) error (SWT.ERROR_NULL_ARGUMENT);
+	if (parent.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
+	parent.checkWidget ();
+	parent.checkOpen ();
+}
+
+/**
+ * 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 () {
+	Display display = this.display;
+	if (display == null) error (SWT.ERROR_WIDGET_DISPOSED);
+	if (display.thread != Thread.currentThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
+	if ((state & DISPOSED) != 0) error (SWT.ERROR_WIDGET_DISPOSED);
+}
+
+void createHandle (int index) {
+}
+
+void createWidget (int index) {
+	createHandle (index);
+	setOrientation ();
+	hookEvents ();
+	register ();
+}
+
+void deregister () {
+	if (handle == 0) return;
+	if ((state & HANDLE) != 0) display.removeWidget (handle);
+}
+
+void destroyWidget () {
+	int /*long*/ topHandle = topHandle ();
+	releaseHandle ();
+	if (topHandle != 0 && (state & HANDLE) != 0) {
+		OS.gtk_widget_destroy (topHandle);
+	}
+}
+
+/**
+ * Disposes of the operating system resources associated with
+ * the receiver and all its descendants. After this method has
+ * been invoked, the receiver and all descendants 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 descendants
+ * 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);
+	release (true);
+}
+
+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(Object)
+ */
+public Object getData () {
+	checkWidget();
+	return (state & KEYED_DATA) != 0 ? ((Object []) data) [0] : 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(String, Object)
+ */
+public Object getData (String key) {
+	checkWidget();
+	if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
+	if ((state & KEYED_DATA) != 0) {
+		Object [] table = (Object []) data;
+		for (int i=1; i<table.length; i+=2) {
+			if (key.equals (table [i])) return table [i+1];
+		}
+	}
+	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>
+ * </ul>
+ */
+public Display getDisplay () {
+	Display display = this.display;
+	if (display == null) error (SWT.ERROR_WIDGET_DISPOSED);
+	return display;
+}
+
+String getName () {
+//	String string = getClass ().getName ();
+//	int index = string.lastIndexOf ('.');
+//	if (index == -1) return string;
+	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;
+}
+
+
+int /*long*/ gtk_activate (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_button_press_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_button_release_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_changed (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_change_value (int /*long*/ widget, int /*long*/ scroll, int /*long*/ value1, int /*long*/ value2) {
+	return 0;
+}
+
+int /*long*/ gtk_clicked (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_commit (int /*long*/ imcontext, int /*long*/ text) {
+	return 0;
+}
+
+int /*long*/ gtk_configure_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_day_selected (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_delete_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_delete_range (int /*long*/ widget, int /*long*/ iter1, int /*long*/ iter2) {
+	return 0;
+}
+
+int /*long*/ gtk_delete_text (int /*long*/ widget, int /*long*/ start_pos, int /*long*/ end_pos) {
+	return 0;
+}
+
+int /*long*/ gtk_enter_notify_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_event_after (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_expand_collapse_cursor_row (int /*long*/ widget, int /*long*/ logical, int /*long*/ expand, int /*long*/ open_all) {
+	return 0;
+}
+
+int /*long*/ gtk_expose_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_focus (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_focus_in_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_focus_out_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_grab_focus (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_hide (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_input (int /*long*/ widget, int /*long*/ arg1) {
+	return 0;
+}
+
+int /*long*/ gtk_insert_text (int /*long*/ widget, int /*long*/ new_text, int /*long*/ new_text_length, int /*long*/ position) {
+	return 0;
+}
+
+int /*long*/ gtk_key_press_event (int /*long*/ widget, int /*long*/ event) {
+	GdkEventKey gdkEvent = new GdkEventKey ();
+	OS.memmove (gdkEvent, event, GdkEventKey.sizeof);
+	return sendKeyEvent (SWT.KeyDown, gdkEvent) ? 0 : 1;
+}
+
+int /*long*/ gtk_key_release_event (int /*long*/ widget, int /*long*/ event) {
+	GdkEventKey gdkEvent = new GdkEventKey ();
+	OS.memmove (gdkEvent, event, GdkEventKey.sizeof);
+	return sendKeyEvent (SWT.KeyUp, gdkEvent) ? 0 : 1;
+}
+
+int /*long*/ gtk_leave_notify_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_map (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_map_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_mnemonic_activate (int /*long*/ widget, int /*long*/ arg1) {
+	return 0;
+}
+
+int /*long*/ gtk_month_changed (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_motion_notify_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_move_focus (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_output (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_popup_menu (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_preedit_changed (int /*long*/ imcontext) {
+	return 0;
+}
+
+int /*long*/ gtk_realize (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_row_activated (int /*long*/ tree, int /*long*/ path, int /*long*/ column) {
+	return 0;
+}
+
+int /*long*/ gtk_scroll_child (int /*long*/ widget, int /*long*/ scrollType, int /*long*/ horizontal) {
+	return 0;
+}
+
+int /*long*/ gtk_scroll_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_select (int /*long*/ item) {
+	return 0;
+}
+
+int /*long*/ gtk_show (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_show_help (int /*long*/ widget, int /*long*/ helpType) {
+	return 0;
+}
+
+int /*long*/ gtk_size_allocate (int /*long*/ widget, int /*long*/ allocation) {
+	return 0;
+}
+
+int /*long*/ gtk_style_set (int /*long*/ widget, int /*long*/ previousStyle) {
+	return 0;
+}
+
+int /*long*/ gtk_switch_page (int /*long*/ widget, int /*long*/ page, int /*long*/ page_num) {
+	return 0;
+}
+
+int /*long*/ gtk_test_collapse_row (int /*long*/ tree, int /*long*/ iter, int /*long*/ path) {
+	return 0;
+}
+
+int /*long*/ gtk_test_expand_row (int /*long*/ tree, int /*long*/ iter, int /*long*/ path) {
+	return 0;
+}
+
+int /*long*/ gtk_text_buffer_insert_text (int /*long*/ widget, int /*long*/ iter, int /*long*/ text, int /*long*/ length) {
+	return 0;
+}
+
+int /*long*/ gtk_timer () {
+	return 0;
+}
+
+int /*long*/ gtk_toggled (int /*long*/ renderer, int /*long*/ pathStr) {
+	return 0;
+}
+
+int /*long*/ gtk_unmap (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_unmap_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_unrealize (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ gtk_value_changed (int /*long*/ adjustment) {
+	return 0;
+}
+
+int /*long*/ gtk_visibility_notify_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int /*long*/ gtk_window_state_event (int /*long*/ widget, int /*long*/ event) {
+	return 0;
+}
+
+int fontHeight (int /*long*/ font, int /*long*/ widgetHandle) {
+	int /*long*/ context = OS.gtk_widget_get_pango_context (widgetHandle);
+	int /*long*/ lang = OS.pango_context_get_language (context);
+	int /*long*/ metrics = OS.pango_context_get_metrics (context, font, lang);
+	int ascent = OS.pango_font_metrics_get_ascent (metrics);
+	int descent = OS.pango_font_metrics_get_descent (metrics);
+	OS.pango_font_metrics_unref (metrics);
+	return OS.PANGO_PIXELS (ascent + descent);
+}
+
+int /*long*/ filterProc(int /*long*/ xEvent, int /*long*/ gdkEvent, int /*long*/ data2) {
+	return 0;
+}
+
+boolean filters (int eventType) {
+	return display.filters (eventType);
+}
+
+int /*long*/ fixedMapProc (int /*long*/ widget) {
+	return 0;
+}
+
+char [] fixMnemonic (String string) {
+	int length = string.length ();
+	char [] text = new char [length];
+	string.getChars (0, length, text, 0);
+	int i = 0, j = 0;
+	char [] result = new char [length * 2];
+	while (i < length) {
+		switch (text [i]) {
+			case '&':
+				if (i + 1 < length && text [i + 1] == '&') {
+					i++;
+				} else {
+					text [i] = '_';
+				}
+				break;
+			case '_':
+				result [j++] = '_';
+				break;
+		}
+		result [j++] = text [i++];
+	}
+	return result;
+}
+
+/**
+ * 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 () {
+	return (state & DISPOSED) != 0;
+}
+
+/**
+ * Returns <code>true</code> if there are any listeners
+ * for the specified event type associated with the receiver,
+ * and <code>false</code> otherwise. The event type is one of
+ * the event constants defined in class <code>SWT</code>.
+ *
+ * @param eventType the type of event
+ * @return true if the event is hooked
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - 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 SWT
+ */
+public boolean isListening (int eventType) {
+	checkWidget ();
+	return hooks (eventType);
+}
+
+boolean isValidThread () {
+	return getDisplay ().isValidThread ();
+}
+
+boolean isValidSubclass() {
+	return Display.isValidClass(getClass());
+}
+
+void hookEvents () {
+}
+
+/*
+ * Returns <code>true</code> if the specified eventType is
+ * hooked, and <code>false</code> otherwise. Implementations
+ * of SWT can avoid creating objects and sending events
+ * when an event happens in the operating system but
+ * there are no listeners hooked for the event.
+ *
+ * @param eventType the event to be checked
+ *
+ * @return <code>true</code> when the eventType is hooked and <code>false</code> otherwise
+ *
+ * @see #isListening
+ */
+boolean hooks (int eventType) {
+	if (eventTable == null) return false;
+	return eventTable.hooks (eventType);
+}
+
+int /*long*/ hoverProc (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ menuPositionProc (int /*long*/ menu, int /*long*/ x, int /*long*/ y, int /*long*/ push_in, int /*long*/ user_data) {
+	return 0;
+}
+
+boolean mnemonicHit (int /*long*/ mnemonicHandle, char key) {
+	if (!mnemonicMatch (mnemonicHandle, key)) return false;
+	OS.g_signal_handlers_block_matched (mnemonicHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, MNEMONIC_ACTIVATE);
+	boolean result = OS.gtk_widget_mnemonic_activate (mnemonicHandle, false);
+	OS.g_signal_handlers_unblock_matched (mnemonicHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, MNEMONIC_ACTIVATE);
+	return result;
+}
+
+boolean mnemonicMatch (int /*long*/ mnemonicHandle, char key) {
+	int keyval1 = OS.gdk_keyval_to_lower (OS.gdk_unicode_to_keyval (key));
+	int keyval2 = OS.gdk_keyval_to_lower (OS.gtk_label_get_mnemonic_keyval (mnemonicHandle));
+	return keyval1 == keyval2;
+}
+
+/**
+ * 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.  The
+ * event type is one of the event constants defined in class
+ * <code>SWT</code>.
+ *
+ * @param eventType the type of event which has occurred
+ * @param event the event 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>
+ *
+ * @see SWT
+ * @see #addListener
+ * @see #removeListener(int, Listener)
+ */
+public void notifyListeners (int eventType, Event event) {
+	checkWidget();
+	if (event == null) event = new Event ();
+	sendEvent (eventType, event);
+}
+
+void postEvent (int eventType) {
+	sendEvent (eventType, null, false);
+}
+
+void postEvent (int eventType, Event event) {
+	sendEvent (eventType, event, false);
+}
+
+void register () {
+	if (handle == 0) return;
+	if ((state & HANDLE) != 0) display.addWidget (handle, this);
+}
+
+void release (boolean destroy) {
+	if ((state & DISPOSE_SENT) == 0) {
+		state |= DISPOSE_SENT;
+		sendEvent (SWT.Dispose);
+	}
+	if ((state & DISPOSED) == 0) {
+		releaseChildren (destroy);
+	}
+	if ((state & RELEASED) == 0) {
+		state |= RELEASED;
+		if (destroy) {
+			releaseParent ();
+			releaseWidget ();
+			destroyWidget ();
+		} else {
+			releaseWidget ();
+			releaseHandle ();
+		}
+	}
+}
+
+void releaseChildren (boolean destroy) {
+}
+
+void releaseHandle () {
+	handle = 0;
+	state |= DISPOSED;
+	display = null;
+}
+
+void releaseParent () {
+	/* Do nothing */
+}
+
+void releaseWidget () {
+	deregister ();
+	eventTable = null;
+	data = null;
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when an event of the given type occurs. The event
+ * type is one of the event constants defined in class <code>SWT</code>.
+ *
+ * @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 SWT
+ * @see #addListener
+ * @see #notifyListeners
+ */
+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 notified 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);
+}
+
+int /*long*/ rendererGetSizeProc (int /*long*/ cell, int /*long*/ handle, int /*long*/ cell_area, int /*long*/ x_offset, int /*long*/ y_offset, int /*long*/ width, int /*long*/ height) {
+	return 0;
+}
+
+int /*long*/ rendererRenderProc (int /*long*/ cell, int /*long*/ window, int /*long*/ handle, int /*long*/ background_area, int /*long*/ cell_area, int /*long*/ expose_area, int /*long*/ flags) {
+	return 0;
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified 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 sendEvent (Event event) {
+	Display display = event.display;
+	if (!display.filterEvent (event)) {
+		if (eventTable != null) eventTable.sendEvent (event);
+	}
+}
+
+void sendEvent (int eventType) {
+	sendEvent (eventType, null, true);
+}
+
+void sendEvent (int eventType, Event event) {
+	sendEvent (eventType, event, true);
+}
+
+void sendEvent (int eventType, Event event, boolean send) {
+	if (eventTable == null && !display.filters (eventType)) {
+		return;
+	}
+	if (event == null) event = new Event ();
+	event.type = eventType;
+	event.display = display;
+	event.widget = this;
+	if (event.time == 0) {
+		event.time = display.getLastEventTime ();
+	}
+	if (send) {
+		sendEvent (event);
+	} else {
+		display.postEvent (event);
+	}
+}
+
+boolean sendKeyEvent (int type, GdkEventKey keyEvent) {
+	int length = keyEvent.length;
+	if (keyEvent.string == 0 || OS.g_utf8_strlen (keyEvent.string, length) <= 1) {
+		Event event = new Event ();
+		event.time = keyEvent.time;
+		if (!setKeyState (event, keyEvent)) return true;
+		sendEvent (type, event);
+		// widget could be disposed at this point
+
+		/*
+		* It is possible (but unlikely), that application
+		* code could have disposed the widget in the key
+		* events.  If this happens, end the processing of
+		* the key by returning false.
+		*/
+		if (isDisposed ()) return false;
+		return event.doit;
+	}
+	byte [] buffer = new byte [length];
+	OS.memmove (buffer, keyEvent.string, length);
+	char [] chars = Converter.mbcsToWcs (null, buffer);
+	return sendIMKeyEvent (type, keyEvent, chars) != null;
+}
+
+char [] sendIMKeyEvent (int type, GdkEventKey keyEvent, char  [] chars) {
+	int index = 0, count = 0, state = 0;
+	int /*long*/ ptr = 0;
+	if (keyEvent == null) {
+		ptr = OS.gtk_get_current_event ();
+		if (ptr != 0) {
+			keyEvent = new GdkEventKey ();
+			OS.memmove (keyEvent, ptr, GdkEventKey.sizeof);
+			switch (keyEvent.type) {
+				case OS.GDK_KEY_PRESS:
+				case OS.GDK_KEY_RELEASE:
+					state = keyEvent.state;
+					break;
+				default:
+					keyEvent = null;
+					break;
+			}
+		}
+	}
+	if (keyEvent == null) {
+		int [] buffer = new int [1];
+		OS.gtk_get_current_event_state (buffer);
+		state = buffer [0];
+	}
+	while (index < chars.length) {
+		Event event = new Event ();
+		if (keyEvent != null && chars.length <= 1) {
+			setKeyState (event, keyEvent);
+		} else {
+			setInputState (event, state);
+		}
+		event.character = chars [index];
+		sendEvent (type, event);
+
+		/*
+		* It is possible (but unlikely), that application
+		* code could have disposed the widget in the key
+		* events.  If this happens, end the processing of
+		* the key by returning null.
+		*/
+		if (isDisposed ()) {
+			if (ptr != 0) OS.gdk_event_free (ptr);
+			return null;
+		}
+		if (event.doit) chars [count++] = chars [index];
+		index++;
+	}
+	if (ptr != 0) OS.gdk_event_free (ptr);
+	if (count == 0) return null;
+	if (index != count) {
+		char [] result = new char [count];
+		System.arraycopy (chars, 0, result, 0, count);
+		return result;
+	}
+	return chars;
+}
+
+/**
+ * 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>
+ *
+ * @see #getData()
+ */
+public void setData (Object data) {
+	checkWidget();
+	if ((state & KEYED_DATA) != 0) {
+		((Object []) this.data) [0] = data;
+	} else {
+		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(String)
+ */
+public void setData (String key, Object value) {
+	checkWidget();
+	if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
+	int index = 1;
+	Object [] table = null;
+	if ((state & KEYED_DATA) != 0) {
+		table = (Object []) data;
+		while (index < table.length) {
+			if (key.equals (table [index])) break;
+			index += 2;
+		}
+	}
+	if (value != null) {
+		if ((state & KEYED_DATA) != 0) {
+			if (index == table.length) {
+				Object [] newTable = new Object [table.length + 2];
+				System.arraycopy (table, 0, newTable, 0, table.length);
+				data = table = newTable;
+			}
+		} else {
+			table = new Object [3];
+			table [0] = data;
+			data = table;
+			state |= KEYED_DATA;
+		}
+		table [index] = key;
+		table [index + 1] = value;
+	} else {
+		if ((state & KEYED_DATA) != 0) {
+			if (index != table.length) {
+				int length = table.length - 2;
+				if (length == 1) {
+					data = table [0];
+					state &= ~KEYED_DATA;
+				} else {
+					Object [] newTable = new Object [length];
+					System.arraycopy (table, 0, newTable, 0, index);
+					System.arraycopy (table, index + 2, newTable, index, length - index);
+					data = newTable;
+				}
+			}
+		}
+	}
+}
+
+void setForegroundColor (int /*long*/ handle, GdkColor color) {
+	int /*long*/ style = OS.gtk_widget_get_modifier_style (handle);
+	OS.gtk_rc_style_set_fg (style, OS.GTK_STATE_NORMAL, color);
+	OS.gtk_rc_style_set_fg (style, OS.GTK_STATE_ACTIVE, color);
+	OS.gtk_rc_style_set_fg (style, OS.GTK_STATE_PRELIGHT, color);
+	int flags = OS.gtk_rc_style_get_color_flags (style, OS.GTK_STATE_NORMAL);
+	flags = (color == null) ? flags & ~OS.GTK_RC_FG: flags | OS.GTK_RC_FG;
+	OS.gtk_rc_style_set_color_flags (style, OS.GTK_STATE_NORMAL, flags);
+	flags = OS.gtk_rc_style_get_color_flags (style, OS.GTK_STATE_ACTIVE);
+	flags = (color == null) ? flags & ~OS.GTK_RC_FG: flags | OS.GTK_RC_FG;
+	OS.gtk_rc_style_set_color_flags (style, OS.GTK_STATE_ACTIVE, flags);
+	flags = OS.gtk_rc_style_get_color_flags (style, OS.GTK_STATE_PRELIGHT);
+	flags = (color == null) ? flags & ~OS.GTK_RC_FG: flags | OS.GTK_RC_FG;
+	OS.gtk_rc_style_set_color_flags (style, OS.GTK_STATE_PRELIGHT, flags);
+
+	OS.gtk_rc_style_set_text (style, OS.GTK_STATE_NORMAL, color);
+	OS.gtk_rc_style_set_text (style, OS.GTK_STATE_ACTIVE, color);
+	OS.gtk_rc_style_set_text (style, OS.GTK_STATE_PRELIGHT, color);
+	flags = OS.gtk_rc_style_get_color_flags (style, OS.GTK_STATE_NORMAL);
+	flags = (color == null) ? flags & ~OS.GTK_RC_TEXT: flags | OS.GTK_RC_TEXT;
+	OS.gtk_rc_style_set_color_flags (style, OS.GTK_STATE_NORMAL, flags);
+	flags = OS.gtk_rc_style_get_color_flags (style, OS.GTK_STATE_PRELIGHT);
+	flags = (color == null) ? flags & ~OS.GTK_RC_TEXT: flags | OS.GTK_RC_TEXT;
+	OS.gtk_rc_style_set_color_flags (style, OS.GTK_STATE_PRELIGHT, flags);
+	flags = OS.gtk_rc_style_get_color_flags (style, OS.GTK_STATE_ACTIVE);
+	flags = (color == null) ? flags & ~OS.GTK_RC_TEXT: flags | OS.GTK_RC_TEXT;
+	OS.gtk_rc_style_set_color_flags (style, OS.GTK_STATE_ACTIVE, flags);
+	OS.gtk_widget_modify_style (handle, style);
+}
+
+boolean setInputState (Event event, int state) {
+	if ((state & OS.GDK_MOD1_MASK) != 0) event.stateMask |= SWT.ALT;
+	if ((state & OS.GDK_SHIFT_MASK) != 0) event.stateMask |= SWT.SHIFT;
+	if ((state & OS.GDK_CONTROL_MASK) != 0) event.stateMask |= SWT.CONTROL;
+	if ((state & OS.GDK_BUTTON1_MASK) != 0) event.stateMask |= SWT.BUTTON1;
+	if ((state & OS.GDK_BUTTON2_MASK) != 0) event.stateMask |= SWT.BUTTON2;
+	if ((state & OS.GDK_BUTTON3_MASK) != 0) event.stateMask |= SWT.BUTTON3;
+	return true;
+}
+
+boolean setKeyState (Event event, GdkEventKey keyEvent) {
+	if (keyEvent.string != 0 && OS.g_utf8_strlen (keyEvent.string, keyEvent.length) > 1) return false;
+	boolean isNull = false;
+	event.keyCode = Display.translateKey (keyEvent.keyval);
+	switch (keyEvent.keyval) {
+		case OS.GDK_BackSpace:		event.character = SWT.BS; break;
+		case OS.GDK_Linefeed:		event.character = SWT.LF; break;
+		case OS.GDK_KP_Enter:
+		case OS.GDK_Return: 		event.character = SWT.CR; break;
+		case OS.GDK_KP_Delete:
+		case OS.GDK_Delete:			event.character = SWT.DEL; break;
+		case OS.GDK_Escape:			event.character = SWT.ESC; break;
+		case OS.GDK_Tab:
+		case OS.GDK_ISO_Left_Tab: 	event.character = SWT.TAB; break;
+		default: {
+			if (event.keyCode == 0) {
+				int [] keyval = new int [1], effective_group= new int [1], level = new int [1], consumed_modifiers = new int [1];
+				if (OS.gdk_keymap_translate_keyboard_state(OS.gdk_keymap_get_default (), keyEvent.hardware_keycode, 0, keyEvent.group, keyval, effective_group, level, consumed_modifiers)) {
+					event.keyCode = OS.gdk_keyval_to_unicode (keyval [0]);
+				}
+			}
+			int key = keyEvent.keyval;
+			if ((keyEvent.state & OS.GDK_CONTROL_MASK) != 0 && (0 <= key && key <= 0x7F)) {
+				if ('a'  <= key && key <= 'z') key -= 'a' - 'A';
+				if (64 <= key && key <= 95) key -= 64;
+				event.character = (char) key;
+				isNull = keyEvent.keyval == '@' && key == 0;
+			} else {
+				event.character = (char) OS.gdk_keyval_to_unicode (key);
+			}
+		}
+	}
+	if (event.keyCode == 0 && event.character == 0) {
+		if (!isNull) return false;
+	}
+	return setInputState (event, keyEvent.state);
+}
+
+void setOrientation () {
+}
+
+int /*long*/ shellMapProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ user_data) {
+	return 0;
+}
+
+int /*long*/ sizeAllocateProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ user_data) {
+	return 0;
+}
+
+int /*long*/ sizeRequestProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ user_data) {
+	return 0;
+}
+
+/**
+ * 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 /*long*/ topHandle () {
+	return handle;
+}
+
+int /*long*/ timerProc (int /*long*/ widget) {
+	return 0;
+}
+
+int /*long*/ treeSelectionProc (int /*long*/ model, int /*long*/ path, int /*long*/ iter, int [] selection, int length) {
+	return 0;
+}
+
+boolean translateTraversal (int event) {
+	return false;
+}
+
+int /*long*/ windowProc (int /*long*/ handle, int /*long*/ user_data) {
+	switch ((int)/*64*/user_data) {
+		case ACTIVATE: return gtk_activate (handle);
+		case CHANGED: return gtk_changed (handle);
+		case CLICKED: return gtk_clicked (handle);
+		case DAY_SELECTED: return gtk_day_selected (handle);
+		case HIDE: return gtk_hide (handle);
+		case GRAB_FOCUS: return gtk_grab_focus (handle);
+		case MAP: return gtk_map (handle);
+		case MONTH_CHANGED: return gtk_month_changed (handle);
+		case OUTPUT: return gtk_output (handle);
+		case POPUP_MENU: return gtk_popup_menu (handle);
+		case PREEDIT_CHANGED: return gtk_preedit_changed (handle);
+		case REALIZE: return gtk_realize (handle);
+		case SELECT: return gtk_select (handle);
+		case SHOW: return gtk_show (handle);
+		case VALUE_CHANGED: return gtk_value_changed (handle);
+		case UNMAP: return gtk_unmap (handle);
+		case UNREALIZE: return gtk_unrealize (handle);
+		default: return 0;
+	}
+}
+
+int /*long*/ windowProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ user_data) {
+	switch ((int)/*64*/user_data) {
+		case EXPOSE_EVENT_INVERSE: {
+			GdkEventExpose gdkEvent = new GdkEventExpose ();
+			OS.memmove (gdkEvent, arg0, GdkEventExpose.sizeof);
+			int /*long*/ paintWindow = paintWindow();
+			int /*long*/ window = gdkEvent.window;
+			if (window != paintWindow) return 0;
+			return (state & OBSCURED) != 0 ? 1 : 0;
+		}
+		case BUTTON_PRESS_EVENT_INVERSE:
+		case BUTTON_RELEASE_EVENT_INVERSE:
+		case MOTION_NOTIFY_EVENT_INVERSE: {
+			return 1;
+		}
+		case BUTTON_PRESS_EVENT: return gtk_button_press_event (handle, arg0);
+		case BUTTON_RELEASE_EVENT: return gtk_button_release_event (handle, arg0);
+		case COMMIT: return gtk_commit (handle, arg0);
+		case CONFIGURE_EVENT: return gtk_configure_event (handle, arg0);
+		case DELETE_EVENT: return gtk_delete_event (handle, arg0);
+		case ENTER_NOTIFY_EVENT: return gtk_enter_notify_event (handle, arg0);
+		case EVENT: return gtk_event (handle, arg0);
+		case EVENT_AFTER: return gtk_event_after (handle, arg0);
+		case EXPOSE_EVENT: return gtk_expose_event (handle, arg0);
+		case FOCUS: return gtk_focus (handle, arg0);
+		case FOCUS_IN_EVENT: return gtk_focus_in_event (handle, arg0);
+		case FOCUS_OUT_EVENT: return gtk_focus_out_event (handle, arg0);
+		case KEY_PRESS_EVENT: return gtk_key_press_event (handle, arg0);
+		case KEY_RELEASE_EVENT: return gtk_key_release_event (handle, arg0);
+		case INPUT: return gtk_input (handle, arg0);
+		case LEAVE_NOTIFY_EVENT: return gtk_leave_notify_event (handle, arg0);
+		case MAP_EVENT: return gtk_map_event (handle, arg0);
+		case MNEMONIC_ACTIVATE: return gtk_mnemonic_activate (handle, arg0);
+		case MOTION_NOTIFY_EVENT: return gtk_motion_notify_event (handle, arg0);
+		case MOVE_FOCUS: return gtk_move_focus (handle, arg0);
+		case SCROLL_EVENT:	return gtk_scroll_event (handle, arg0);
+		case SHOW_HELP: return gtk_show_help (handle, arg0);
+		case SIZE_ALLOCATE: return gtk_size_allocate (handle, arg0);
+		case STYLE_SET: return gtk_style_set (handle, arg0);
+		case TOGGLED: return gtk_toggled (handle, arg0);
+		case UNMAP_EVENT: return gtk_unmap_event (handle, arg0);
+		case VISIBILITY_NOTIFY_EVENT: return gtk_visibility_notify_event (handle, arg0);
+		case WINDOW_STATE_EVENT: return gtk_window_state_event (handle, arg0);
+		default: return 0;
+	}
+}
+
+int /*long*/ windowProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ arg1, int /*long*/ user_data) {
+	switch ((int)/*64*/user_data) {
+		case DELETE_RANGE: return gtk_delete_range (handle, arg0, arg1);
+		case DELETE_TEXT: return gtk_delete_text (handle, arg0, arg1);
+		case ROW_ACTIVATED: return gtk_row_activated (handle, arg0, arg1);
+		case SCROLL_CHILD: return gtk_scroll_child (handle, arg0, arg1);
+		case SWITCH_PAGE: return gtk_switch_page (handle, arg0, arg1);
+		case TEST_COLLAPSE_ROW: return gtk_test_collapse_row (handle, arg0, arg1);
+		case TEST_EXPAND_ROW: return gtk_test_expand_row(handle, arg0, arg1);
+		default: return 0;
+	}
+}
+
+int /*long*/ windowProc (int /*long*/ handle, int /*long*/ arg0, int /*long*/ arg1, int /*long*/ arg2, int /*long*/ user_data) {
+	switch ((int)/*64*/user_data) {
+		case CHANGE_VALUE: return gtk_change_value (handle, arg0, arg1, arg2);
+		case EXPAND_COLLAPSE_CURSOR_ROW: return gtk_expand_collapse_cursor_row (handle, arg0, arg1, arg2);
+		case INSERT_TEXT: return gtk_insert_text (handle, arg0, arg1, arg2);
+		case TEXT_BUFFER_INSERT_TEXT: return gtk_text_buffer_insert_text (handle, arg0, arg1, arg2);
+		default: return 0;
+	}
+}
+
+}
+++/
\ No newline at end of file