--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/widgets/Widget.d	Fri Mar 20 23:03:58 2009 +0100
@@ -0,0 +1,1856 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module org.eclipse.swt.widgets.Widget;
+
+import org.eclipse.swt.SWT;
+import java.lang.all;
+
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.internal.Converter;
+import org.eclipse.swt.internal.SWTEventListener;
+import org.eclipse.swt.internal.gtk.OS;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.EventTable;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.TypedListener;
+
+import tango.stdc.string;
+import tango.core.Thread;
+
+
+/**
+ * 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
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+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 GtkWidget* handle;
+    int style, state;
+    Display display;
+    EventTable eventTable;
+    Object data;
+
+    /* Global state flags */
+    static const int DISPOSED = 1<<0;
+    static const int CANVAS = 1<<1;
+    static const int KEYED_DATA = 1<<2;
+    static const int HANDLE = 1<<3;
+    static const int DISABLED = 1<<4;
+    static const int MENU = 1<<5;
+    static const int OBSCURED = 1<<6;
+    static const int MOVED = 1<<7;
+    static const int RESIZED = 1<<8;
+    static const int ZERO_WIDTH = 1<<9;
+    static const int ZERO_HEIGHT = 1<<10;
+    static const int HIDDEN = 1<<11;
+    static const int FOREGROUND = 1<<12;
+    static const int BACKGROUND = 1<<13;
+    static const int FONT = 1<<14;
+    static const int PARENT_BACKGROUND = 1<<15;
+    static const int THEME_BACKGROUND = 1<<16;
+
+    /* A layout was requested on this widget */
+    static const int LAYOUT_NEEDED  = 1<<17;
+
+    /* The preferred size of a child has changed */
+    static const int LAYOUT_CHANGED = 1<<18;
+
+    /* A layout was requested in this widget hierachy */
+    static const int LAYOUT_CHILD = 1<<19;
+
+    /* More global state flags */
+    static const int RELEASED = 1<<20;
+    static const int DISPOSE_SENT = 1<<21;
+    static const int FOREIGN_HANDLE = 1<<22;
+    static const int DRAG_DETECT = 1<<23;
+
+    /* Default size for widgets */
+    static const int DEFAULT_WIDTH  = 64;
+    static const int DEFAULT_HEIGHT = 64;
+
+    /* GTK signals data */
+    static const int ACTIVATE = 1;
+    static const int BUTTON_PRESS_EVENT = 2;
+    static const int BUTTON_PRESS_EVENT_INVERSE = 3;
+    static const int BUTTON_RELEASE_EVENT = 4;
+    static const int BUTTON_RELEASE_EVENT_INVERSE = 5;
+    static const int CHANGED = 6;
+    static const int CHANGE_VALUE = 7;
+    static const int CLICKED = 8;
+    static const int COMMIT = 9;
+    static const int CONFIGURE_EVENT = 10;
+    static const int DELETE_EVENT = 11;
+    static const int DELETE_RANGE = 12;
+    static const int DELETE_TEXT = 13;
+    static const int ENTER_NOTIFY_EVENT = 14;
+    static const int EVENT = 15;
+    static const int EVENT_AFTER = 16;
+    static const int EXPAND_COLLAPSE_CURSOR_ROW = 17;
+    static const int EXPOSE_EVENT = 18;
+    static const int EXPOSE_EVENT_INVERSE = 19;
+    static const int FOCUS = 20;
+    static const int FOCUS_IN_EVENT = 21;
+    static const int FOCUS_OUT_EVENT = 22;
+    static const int GRAB_FOCUS = 23;
+    static const int HIDE = 24;
+    static const int INPUT = 25;
+    static const int INSERT_TEXT = 26;
+    static const int KEY_PRESS_EVENT = 27;
+    static const int KEY_RELEASE_EVENT = 28;
+    static const int LEAVE_NOTIFY_EVENT = 29;
+    static const int MAP = 30;
+    static const int MAP_EVENT = 31;
+    static const int MNEMONIC_ACTIVATE = 32;
+    static const int MOTION_NOTIFY_EVENT = 33;
+    static const int MOTION_NOTIFY_EVENT_INVERSE = 34;
+    static const int MOVE_FOCUS = 35;
+    static const int OUTPUT = 36;
+    static const int POPULATE_POPUP = 37;
+    static const int POPUP_MENU = 38;
+    static const int PREEDIT_CHANGED = 39;
+    static const int REALIZE = 40;
+    static const int ROW_ACTIVATED = 41;
+    static const int SCROLL_CHILD = 42;
+    static const int SCROLL_EVENT = 43;
+    static const int SELECT = 44;
+    static const int SHOW = 45;
+    static const int SHOW_HELP = 46;
+    static const int SIZE_ALLOCATE = 47;
+    static const int STYLE_SET = 48;
+    static const int SWITCH_PAGE = 49;
+    static const int TEST_COLLAPSE_ROW = 50;
+    static const int TEST_EXPAND_ROW = 51;
+    static const int TEXT_BUFFER_INSERT_TEXT = 52;
+    static const int TOGGLED = 53;
+    static const int UNMAP = 54;
+    static const int UNMAP_EVENT = 55;
+    static const int UNREALIZE = 56;
+    static const int VALUE_CHANGED = 57;
+    static const int VISIBILITY_NOTIFY_EVENT = 58;
+    static const int WINDOW_STATE_EVENT = 59;
+    static const int ACTIVATE_INVERSE = 60;
+    static const int DAY_SELECTED = 61;
+    static const int MONTH_CHANGED = 62;
+    static const int LAST_SIGNAL = 63;
+
+    template UD_Getter( String name ){
+        const String UD_Getter = "void* ud"~name~"(){ return getDisplay().getWindowProcUserData( "~name~"); }\n";
+    }
+
+    mixin ( UD_Getter!( "ACTIVATE" ));
+    mixin ( UD_Getter!( "BUTTON_PRESS_EVENT" ));
+    mixin ( UD_Getter!( "BUTTON_PRESS_EVENT_INVERSE" ));
+    mixin ( UD_Getter!( "BUTTON_RELEASE_EVENT" ));
+    mixin ( UD_Getter!( "BUTTON_RELEASE_EVENT_INVERSE" ));
+    mixin ( UD_Getter!( "CHANGED" ));
+    mixin ( UD_Getter!( "CHANGE_VALUE" ));
+    mixin ( UD_Getter!( "CLICKED" ));
+    mixin ( UD_Getter!( "COMMIT" ));
+    mixin ( UD_Getter!( "CONFIGURE_EVENT" ));
+    mixin ( UD_Getter!( "DELETE_EVENT" ));
+    mixin ( UD_Getter!( "DELETE_RANGE" ));
+    mixin ( UD_Getter!( "DELETE_TEXT" ));
+    mixin ( UD_Getter!( "ENTER_NOTIFY_EVENT" ));
+    mixin ( UD_Getter!( "EVENT" ));
+    mixin ( UD_Getter!( "EVENT_AFTER" ));
+    mixin ( UD_Getter!( "EXPAND_COLLAPSE_CURSOR_ROW" ));
+    mixin ( UD_Getter!( "EXPOSE_EVENT" ));
+    mixin ( UD_Getter!( "EXPOSE_EVENT_INVERSE" ));
+    mixin ( UD_Getter!( "FOCUS" ));
+    mixin ( UD_Getter!( "FOCUS_IN_EVENT" ));
+    mixin ( UD_Getter!( "FOCUS_OUT_EVENT" ));
+    mixin ( UD_Getter!( "GRAB_FOCUS" ));
+    mixin ( UD_Getter!( "HIDE" ));
+    mixin ( UD_Getter!( "INPUT" ));
+    mixin ( UD_Getter!( "INSERT_TEXT" ));
+    mixin ( UD_Getter!( "KEY_PRESS_EVENT" ));
+    mixin ( UD_Getter!( "KEY_RELEASE_EVENT" ));
+    mixin ( UD_Getter!( "LEAVE_NOTIFY_EVENT" ));
+    mixin ( UD_Getter!( "MAP" ));
+    mixin ( UD_Getter!( "MAP_EVENT" ));
+    mixin ( UD_Getter!( "MNEMONIC_ACTIVATE" ));
+    mixin ( UD_Getter!( "MOTION_NOTIFY_EVENT" ));
+    mixin ( UD_Getter!( "MOTION_NOTIFY_EVENT_INVERSE" ));
+    mixin ( UD_Getter!( "MOVE_FOCUS" ));
+    mixin ( UD_Getter!( "OUTPUT" ));
+    mixin ( UD_Getter!( "POPULATE_POPUP" ));
+    mixin ( UD_Getter!( "POPUP_MENU" ));
+    mixin ( UD_Getter!( "PREEDIT_CHANGED" ));
+    mixin ( UD_Getter!( "REALIZE" ));
+    mixin ( UD_Getter!( "ROW_ACTIVATED" ));
+    mixin ( UD_Getter!( "SCROLL_CHILD" ));
+    mixin ( UD_Getter!( "SCROLL_EVENT" ));
+    mixin ( UD_Getter!( "SELECT" ));
+    mixin ( UD_Getter!( "SHOW" ));
+    mixin ( UD_Getter!( "SHOW_HELP" ));
+    mixin ( UD_Getter!( "SIZE_ALLOCATE" ));
+    mixin ( UD_Getter!( "STYLE_SET" ));
+    mixin ( UD_Getter!( "SWITCH_PAGE" ));
+    mixin ( UD_Getter!( "TEST_COLLAPSE_ROW" ));
+    mixin ( UD_Getter!( "TEST_EXPAND_ROW" ));
+    mixin ( UD_Getter!( "TEXT_BUFFER_INSERT_TEXT" ));
+    mixin ( UD_Getter!( "TOGGLED" ));
+    mixin ( UD_Getter!( "UNMAP" ));
+    mixin ( UD_Getter!( "UNMAP_EVENT" ));
+    mixin ( UD_Getter!( "UNREALIZE" ));
+    mixin ( UD_Getter!( "VALUE_CHANGED" ));
+    mixin ( UD_Getter!( "VISIBILITY_NOTIFY_EVENT" ));
+    mixin ( UD_Getter!( "WINDOW_STATE_EVENT" ));
+    mixin ( UD_Getter!( "ACTIVATE_INVERSE" ));
+    mixin ( UD_Getter!( "DAY_SELECTED" ));
+    mixin ( UD_Getter!( "MONTH_CHANGED" ));
+    mixin ( UD_Getter!( "LAST_SIGNAL" ));
+
+/**
+ * Prevents uninitialized instances from being created outside the package.
+ */
+this () {}
+
+/**
+ * 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 this (Widget parent, int style) {
+    checkSubclass ();
+    checkParent (parent);
+    this.style = style;
+    display = parent.display;
+}
+
+void _addListener (int eventType, Listener listener) {
+    if (eventTable is 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 #getListeners(int)
+ * @see #removeListener(int, Listener)
+ * @see #notifyListeners
+ */
+public void addListener (int eventType, Listener listener) {
+    checkWidget ();
+    if (listener is 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 is null) error (SWT.ERROR_NULL_ARGUMENT);
+    TypedListener typedListener = new TypedListener (listener);
+    addListener (SWT.Dispose, typedListener);
+}
+
+GdkWindow* paintWindow () {
+    return null;
+}
+
+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) is 0) style |= int0;
+    if ((style & int0) !is 0) style = (style & ~mask) | int0;
+    if ((style & int1) !is 0) style = (style & ~mask) | int1;
+    if ((style & int2) !is 0) style = (style & ~mask) | int2;
+    if ((style & int3) !is 0) style = (style & ~mask) | int3;
+    if ((style & int4) !is 0) style = (style & ~mask) | int4;
+    if ((style & int5) !is 0) style = (style & ~mask) | int5;
+    return style;
+}
+
+void cellDataProc (
+    GtkTreeViewColumn *tree_column,
+    GtkCellRenderer *cell,
+    GtkTreeModel *tree_model,
+    GtkTreeIter *iter,
+    void* data)
+{
+}
+
+void checkOpen () {
+    /* Do nothing */
+}
+
+void checkOrientation (Widget parent) {
+    style &= ~SWT.MIRRORED;
+    if ((style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT)) is 0) {
+        if (parent !is null) {
+            if ((parent.style & SWT.LEFT_TO_RIGHT) !is 0) style |= SWT.LEFT_TO_RIGHT;
+            if ((parent.style & SWT.RIGHT_TO_LEFT) !is 0) style |= SWT.RIGHT_TO_LEFT;
+        }
+    }
+    style = checkBits (style, SWT.LEFT_TO_RIGHT, SWT.RIGHT_TO_LEFT, 0, 0, 0, 0);
+    /* Versions of GTK prior to 2.8 do not render RTL text properly */
+    if (OS.GTK_VERSION < OS.buildVERSION (2, 8, 0)) {
+        style &= ~SWT.RIGHT_TO_LEFT;
+        style |= SWT.LEFT_TO_RIGHT;
+    }
+}
+
+/**
+ * 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 is 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>
+ */
+public void checkWidget () {
+    Display display = this.display;
+    if (display is null) error (SWT.ERROR_WIDGET_DISPOSED);
+    if (display.thread !is Thread.getThis ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
+    if ((state & DISPOSED) !is 0) error (SWT.ERROR_WIDGET_DISPOSED);
+}
+
+void createHandle (int index) {
+}
+
+void createWidget (int index) {
+    createHandle (index);
+    setOrientation ();
+    hookEvents ();
+    register ();
+}
+
+void deregister () {
+    if (handle is null) return;
+    if ((state & HANDLE) !is 0) display.removeWidget (handle);
+}
+
+void destroyWidget () {
+    GtkWidget* h = topHandle ();
+    releaseHandle ();
+    if (h !is null && (state & HANDLE) !is 0) {
+        OS.gtk_widget_destroy (h);
+    }
+}
+
+/**
+ * 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) !is 0 ? (cast(ArrayWrapperObject)data).array[0] : data;
+}
+public String getDataStr () {
+    return stringcast( getData() );
+}
+
+/**
+ * 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 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();
+    // SWT extension: allow null for zero length string
+    //if (key is null) error (SWT.ERROR_NULL_ARGUMENT);
+    if ((state & KEYED_DATA) !is 0) {
+        Object[] table = (cast(ArrayWrapperObject) data).array;
+        for (int i=1; i<table.length; i+=2) {
+            String tablekey = (cast(ArrayWrapperString) table[i]).array;
+            if (key ==/*eq*/ tablekey ) return table [i+1];
+        }
+    }
+    return null;
+}
+public String getDataStr (String key) {
+    return stringcast( getData(key) );
+}
+
+/**
+ * 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 is null) error (SWT.ERROR_WIDGET_DISPOSED);
+    return display;
+}
+
+/**
+ * Returns an array 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
+ * @return an array of listeners that will be notified when the event occurs
+ *
+ * @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(int, Listener)
+ * @see #removeListener(int, Listener)
+ * @see #notifyListeners
+ *
+ * @since 3.4
+ */
+public Listener[] getListeners (int eventType) {
+    checkWidget();
+    if (eventTable is null) return new Listener[0];
+    return eventTable.getListeners(eventType);
+}
+
+String getName () {
+//  String str = getClass ().getName ();
+//  int index = str.lastIndexOf ('.');
+//  if (index is -1) return str;
+    String str = this.classinfo.name;
+    int index = str.length;
+    while ((--index > 0) && (str[index] !is '.')) {}
+    return str[index + 1 .. $ ];
+}
+
+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 (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_button_press_event (GtkWidget* widget, GdkEventButton* event) {
+    return 0;
+}
+
+int /*long*/ gtk_button_release_event (GtkWidget* widget, GdkEventButton* event) {
+    return 0;
+}
+
+int /*long*/ gtk_changed (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_change_value (GtkWidget* widget, int /*long*/ scroll, int /*long*/ value1, int /*long*/ value2) {
+    return 0;
+}
+
+int /*long*/ gtk_clicked (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_commit (GtkIMContext* imcontext, char* text) {
+    return 0;
+}
+
+int /*long*/ gtk_configure_event (GtkWidget* widget, int /*long*/ event) {
+    return 0;
+}
+
+int /*long*/ gtk_day_selected (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_delete_event (GtkWidget* widget, int /*long*/ event) {
+    return 0;
+}
+
+int /*long*/ gtk_delete_range (GtkWidget* widget, int /*long*/ iter1, int /*long*/ iter2) {
+    return 0;
+}
+
+int /*long*/ gtk_delete_text (GtkWidget* widget, int /*long*/ start_pos, int /*long*/ end_pos) {
+    return 0;
+}
+
+int /*long*/ gtk_enter_notify_event (GtkWidget* widget, GdkEventCrossing* event) {
+    return 0;
+}
+
+int /*long*/ gtk_event (GtkWidget* widget, GdkEvent* event) {
+    return 0;
+}
+
+int /*long*/ gtk_event_after (GtkWidget* widget, GdkEvent* event) {
+    return 0;
+}
+
+int /*long*/ gtk_expand_collapse_cursor_row (GtkWidget* widget, int /*long*/ logical, int /*long*/ expand, int /*long*/ open_all) {
+    return 0;
+}
+
+int /*long*/ gtk_expose_event (GtkWidget* widget, GdkEventExpose* event) {
+    return 0;
+}
+
+int /*long*/ gtk_focus (GtkWidget* widget, int directionType) {
+    return 0;
+}
+
+int /*long*/ gtk_focus_in_event (GtkWidget* widget, GdkEventFocus* event) {
+    return 0;
+}
+
+int /*long*/ gtk_focus_out_event (GtkWidget* widget, GdkEventFocus* event) {
+    return 0;
+}
+
+int /*long*/ gtk_grab_focus (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_hide (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_input (GtkWidget* widget, int /*long*/ arg1) {
+    return 0;
+}
+
+int /*long*/ gtk_insert_text (GtkEditable* widget, char* new_text, int new_text_length, int position) {
+    return 0;
+}
+
+int /*long*/ gtk_key_press_event (GtkWidget* widget, GdkEventKey* event) {
+    return sendKeyEvent (SWT.KeyDown, event) ? 0 : 1;
+}
+
+int /*long*/ gtk_key_release_event (GtkWidget* widget, GdkEventKey* event) {
+    return sendKeyEvent (SWT.KeyUp, event) ? 0 : 1;
+}
+
+int /*long*/ gtk_leave_notify_event (GtkWidget* widget, GdkEventCrossing* event) {
+    return 0;
+}
+
+int /*long*/ gtk_map (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_map_event (GtkWidget* widget, int /*long*/ event) {
+    return 0;
+}
+
+int /*long*/ gtk_mnemonic_activate (GtkWidget* widget, int /*long*/ arg1) {
+    return 0;
+}
+
+int /*long*/ gtk_month_changed (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_motion_notify_event (GtkWidget* widget, GdkEventMotion* event) {
+    return 0;
+}
+
+int /*long*/ gtk_move_focus (GtkWidget* widget, int directionType) {
+    return 0;
+}
+
+int /*long*/ gtk_output (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_populate_popup (GtkWidget* widget, GtkWidget* menu) {
+    return 0;
+}
+
+int /*long*/ gtk_popup_menu (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_preedit_changed (GtkIMContext* imcontext) {
+    return 0;
+}
+
+int /*long*/ gtk_realize (GtkWidget* widget) {
+    return 0;
+}
+
+void gtk_row_activated (GtkTreeView* tree, GtkTreePath* path, GtkTreeViewColumn* column) {
+}
+
+int /*long*/ gtk_scroll_child (GtkWidget* widget, int /*long*/ scrollType, int /*long*/ horizontal) {
+    return 0;
+}
+
+int /*long*/ gtk_scroll_event (GtkWidget* widget, GdkEventScroll*  event) {
+    return 0;
+}
+
+int /*long*/ gtk_select (int /*long*/ item) {
+    return 0;
+}
+
+int /*long*/ gtk_show (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_show_help (GtkWidget* widget, int /*long*/ helpType) {
+    return 0;
+}
+
+int /*long*/ gtk_size_allocate (GtkWidget* widget, int /*long*/ allocation) {
+    return 0;
+}
+
+int /*long*/ gtk_style_set (GtkWidget* widget, int /*long*/ previousStyle) {
+    return 0;
+}
+
+int /*long*/ gtk_switch_page (GtkWidget* widget, int /*long*/ page, int /*long*/ page_num) {
+    return 0;
+}
+
+int gtk_test_collapse_row (
+    GtkTreeView *tree_view,
+    GtkTreeIter *iter,
+    GtkTreePath *path)
+{
+    return 0;
+}
+
+int /*long*/ gtk_test_expand_row (
+    GtkTreeView *tree_view,
+    GtkTreeIter *iter,
+    GtkTreePath *path)
+{
+    return 0;
+}
+
+int /*long*/ gtk_text_buffer_insert_text (GtkTextBuffer *buffer, GtkTextIter *iter, char *text, int len) {
+    return 0;
+}
+
+int /*long*/ gtk_timer () {
+    return 0;
+}
+
+int /*long*/ gtk_toggled (int /*long*/ renderer, char* pathStr) {
+    return 0;
+}
+
+int /*long*/ gtk_unmap (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_unmap_event (GtkWidget* widget, int /*long*/ event) {
+    return 0;
+}
+
+int /*long*/ gtk_unrealize (GtkWidget* widget) {
+    return 0;
+}
+
+int /*long*/ gtk_value_changed (int /*long*/ adjustment) {
+    return 0;
+}
+
+int /*long*/ gtk_visibility_notify_event (GtkWidget* widget, GdkEventVisibility* event) {
+    return 0;
+}
+
+int /*long*/ gtk_window_state_event (GtkWidget* widget, GdkEventWindowState* event) {
+    return 0;
+}
+
+int fontHeight ( PangoFontDescription* font, GtkWidget* widgetHandle ) {
+    auto context = OS.gtk_widget_get_pango_context (widgetHandle);
+    auto lang = OS.pango_context_get_language (context);
+    auto 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 filterProc (XEvent* xEvent, GdkEvent* gdkEvent, void* data) {
+    return 0;
+}
+
+bool filters (int eventType) {
+    return display.filters (eventType);
+}
+
+int /*long*/ fixedMapProc (GtkWidget* widget) {
+    return 0;
+}
+
+void fixedSizeAllocateProc(GtkWidget* widget, GtkAllocation* allocationPtr) {
+    return Display.oldFixedSizeAllocateProc(widget, allocationPtr);
+}
+
+char [] fixMnemonic (String str) {
+    return fixMnemonic (str, true);
+}
+
+char [] fixMnemonic (String str, bool replace) {
+    int len = str.length;
+    String text = str[0 .. len].dup;
+    int i = 0, j = 0;
+    char [] result = new char [len * 2];
+    while (i < len) {
+        switch (text [i]) {
+            case '&':
+                if (i + 1 < len && text [i + 1] is '&') {
+                    i++;
+                } else {
+                    if (replace) {
+                        text [i] = '_';
+                    } else {
+                        i++;
+                    }
+                }
+                break;
+            case '_':
+                if (replace) result [j++] = '_';
+                break;
+            default:
+        }
+        result [j++] = text [i++];
+    }
+    return result[0..j];
+}
+
+/**
+ * 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 bool isDisposed () {
+    return (state & DISPOSED) !is 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 bool isListening (int eventType) {
+    checkWidget ();
+    return hooks (eventType);
+}
+
+bool isValidThread () {
+    return getDisplay ().isValidThread ();
+}
+
+bool isValidSubclass() {
+    return true;//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
+ */
+bool hooks (int eventType) {
+    if (eventTable is null) return false;
+    return eventTable.hooks (eventType);
+}
+
+int /*long*/ hoverProc (GtkWidget* widget) {
+    return 0;
+}
+
+void menuPositionProc (GtkMenu* menu, int* x, int* y, int* push_in, void* user_data) {
+}
+
+bool mnemonicHit (GtkWidget* mnemonicHandle, wchar key) {
+    if (!mnemonicMatch (mnemonicHandle, key)) return false;
+    OS.g_signal_handlers_block_matched ( cast(void*)mnemonicHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udMNEMONIC_ACTIVATE);
+    bool result = cast(bool)OS.gtk_widget_mnemonic_activate (cast(GtkWidget*)mnemonicHandle, false);
+    OS.g_signal_handlers_unblock_matched (cast(void*)mnemonicHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udMNEMONIC_ACTIVATE);
+    return result;
+}
+
+bool mnemonicMatch (GtkWidget* mnemonicHandle, wchar 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 (cast(GtkLabel*)mnemonicHandle));
+    return keyval1 is keyval2;
+}
+
+void modifyStyle (GtkWidget* handle, GtkRcStyle* style) {
+    OS.gtk_widget_modify_style (handle, style);
+}
+
+/**
+ * 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 #getListeners(int)
+ * @see #removeListener(int, Listener)
+ */
+public void notifyListeners (int eventType, Event event) {
+    checkWidget();
+    if (event is 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 is null) return;
+    if ((state & HANDLE) !is 0) display.addWidget (handle, this);
+}
+
+void release (bool destroy) {
+    if ((state & DISPOSE_SENT) is 0) {
+        state |= DISPOSE_SENT;
+        sendEvent (SWT.Dispose);
+    }
+    if ((state & DISPOSED) is 0) {
+        releaseChildren (destroy);
+    }
+    if ((state & RELEASED) is 0) {
+        state |= RELEASED;
+        if (destroy) {
+            releaseParent ();
+            releaseWidget ();
+            destroyWidget ();
+        } else {
+            releaseWidget ();
+            releaseHandle ();
+        }
+    }
+}
+
+void releaseChildren (bool destroy) {
+}
+
+void releaseHandle () {
+    handle = null;
+    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
+ *
+ * @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 #getListeners(int)
+ * @see #notifyListeners
+ */
+public void removeListener (int eventType, Listener handler) {
+    checkWidget ();
+    if (handler is null) error (SWT.ERROR_NULL_ARGUMENT);
+    if (eventTable is 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
+ *
+ * @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 is null) error (SWT.ERROR_NULL_ARGUMENT);
+    if (eventTable is null) return;
+    eventTable.unhook (eventType, handler);
+}
+
+void rendererGetSizeProc (
+    GtkCellRenderer      *cell,
+    GtkWidget            *widget,
+    GdkRectangle         *cell_area,
+    int                  *x_offset,
+    int                  *y_offset,
+    int                  *width,
+    int                  *height)
+{
+}
+
+void rendererRenderProc (
+    GtkCellRenderer * cell,
+    GdkDrawable * window,
+    GtkWidget * widget,
+    GdkRectangle *background_area,
+    GdkRectangle *cell_area,
+    GdkRectangle *expose_area,
+    int flags)
+{
+}
+
+/**
+ * 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
+ *
+ * @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 is null) error (SWT.ERROR_NULL_ARGUMENT);
+    if (eventTable is null) return;
+    eventTable.unhook (SWT.Dispose, listener);
+}
+
+
+void sendEvent (Event event) {
+    Display display = event.display;
+    if (!display.filterEvent (event)) {
+        if (eventTable !is 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, bool send) {
+    if (eventTable is null && !display.filters (eventType)) {
+        return;
+    }
+    if (event is null) event = new Event ();
+    event.type = eventType;
+    event.display = display;
+    event.widget = this;
+    if (event.time is 0) {
+        event.time = display.getLastEventTime ();
+    }
+    if (send) {
+        sendEvent (event);
+    } else {
+        display.postEvent (event);
+    }
+}
+
+bool sendKeyEvent (int type, GdkEventKey* keyEvent) {
+    int len = keyEvent.length;
+    if (keyEvent.string is null || OS.g_utf8_strlen (keyEvent.string, len) <= 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;
+    }
+    char [] chars = fromStringz( keyEvent.string );
+    return sendIMKeyEvent (type, keyEvent, chars) !is null;
+}
+
+char [] sendIMKeyEvent (int type, GdkEventKey* keyEvent, char [] chars) {
+    int index = 0, count = 0, state = 0;
+    GdkEvent*  ptr = null;
+    if (keyEvent is null) {
+        ptr = OS.gtk_get_current_event ();
+        if (ptr !is null) {
+            keyEvent = cast(GdkEventKey*)ptr;
+            switch (cast(int)keyEvent.type) {
+                case OS.GDK_KEY_PRESS:
+                case OS.GDK_KEY_RELEASE:
+                    state = keyEvent.state;
+                    break;
+                default:
+                    keyEvent = null;
+                    break;
+            }
+        }
+    }
+    if (keyEvent is null) {
+        int buffer;
+        OS.gtk_get_current_event_state (&buffer);
+        state = buffer;
+    }
+    while (index < chars.length) {
+        Event event = new Event ();
+        //PORTING take care of utf8
+        if (keyEvent !is null && chars.codepointCount() <= 1) {
+            setKeyState (event, keyEvent);
+        } else {
+            setInputState (event, state);
+        }
+        //PORTING take care of utf8
+        int incr;
+        event.character = firstCodePoint( chars [index..$], incr );
+        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 !is null) OS.gdk_event_free (ptr);
+            return null;
+        }
+
+        //PORTING take care of utf8
+        if (event.doit) {
+            for( int i = 0; i < incr; i++ ){
+                chars [count+i] = chars [index+i];
+            }
+            count+=incr;
+        }
+        index+=incr;
+    }
+    if (ptr !is null) OS.gdk_event_free (ptr);
+    if (count is 0) return null;
+    if (index !is 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) !is 0) {
+        (cast(ArrayWrapperObject) this.data).array[0] = data;
+    } else {
+        this.data = data;
+    }
+}
+public void setDataStr (String data) {
+    setData( stringcast(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 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();
+    // SWT extension: allow null for zero length string
+    //if (key is null) error (SWT.ERROR_NULL_ARGUMENT);
+    int index = 1;
+    Object [] table = null;
+    if ((state & KEYED_DATA) !is 0) {
+        table = (cast(ArrayWrapperObject) data).array;
+        while (index < table.length) {
+            String tablekey = (cast(ArrayWrapperString)table[index]).array;
+            if (key.equals (tablekey) ) break;
+            index += 2;
+        }
+    }
+    if (value !is null) {
+        if ((state & KEYED_DATA) !is 0) {
+            if (index is table.length) {
+                Object [] newTable = new Object [table.length + 2];
+                System.arraycopy (table, 0, newTable, 0, table.length);
+                table = newTable;
+                data = new ArrayWrapperObject( table );
+            }
+        } else {
+            table = new Object [3];
+            table [0] = data;
+            data = new ArrayWrapperObject( table );
+            state |= KEYED_DATA;
+        }
+        table [index] = new ArrayWrapperString( key );
+        table [index + 1] = value;
+    } else {
+        if ((state & KEYED_DATA) !is 0) {
+            if (index !is table.length) {
+                int len = table.length - 2;
+                if (len is 1) {
+                    data = table [0];
+                    state &= ~KEYED_DATA;
+                } else {
+                    Object [] newTable = new Object [len];
+                    System.arraycopy (table, 0, newTable, 0, index);
+                    System.arraycopy (table, index + 2, newTable, index, len - index);
+                    data = new ArrayWrapperObject( newTable );
+                }
+            }
+        }
+    }
+}
+public void setDataStr (String key, String value) {
+    setData(key, stringcast(value));
+}
+
+void setForegroundColor (GtkWidget* handle, GdkColor* color) {
+    auto 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 is 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 is 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 is 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 is 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 is 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 is null) ? flags & ~OS.GTK_RC_TEXT: flags | OS.GTK_RC_TEXT;
+    OS.gtk_rc_style_set_color_flags (style, OS.GTK_STATE_ACTIVE, flags);
+    modifyStyle (handle, style);
+}
+
+bool setInputState (Event event, int state) {
+    if ((state & OS.GDK_MOD1_MASK) !is 0) event.stateMask |= SWT.ALT;
+    if ((state & OS.GDK_SHIFT_MASK) !is 0) event.stateMask |= SWT.SHIFT;
+    if ((state & OS.GDK_CONTROL_MASK) !is 0) event.stateMask |= SWT.CONTROL;
+    if ((state & OS.GDK_BUTTON1_MASK) !is 0) event.stateMask |= SWT.BUTTON1;
+    if ((state & OS.GDK_BUTTON2_MASK) !is 0) event.stateMask |= SWT.BUTTON2;
+    if ((state & OS.GDK_BUTTON3_MASK) !is 0) event.stateMask |= SWT.BUTTON3;
+    return true;
+}
+
+bool setKeyState (Event event, GdkEventKey* keyEvent) {
+    if (keyEvent.string !is null && OS.g_utf8_strlen (keyEvent.string, keyEvent.length) > 1) return false;
+    bool 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 is 0) {
+                uint keyval;
+                int effective_group, level;
+                int consumed_modifiers;
+                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 );
+                }
+            }
+            int key = keyEvent.keyval;
+            if ((keyEvent.state & OS.GDK_CONTROL_MASK) !is 0 && (0 <= key && key <= 0x7F)) {
+                if ('a'  <= key && key <= 'z') key -= 'a' - 'A';
+                if (64 <= key && key <= 95) key -= 64;
+                event.character = cast(char) key;
+                isNull = keyEvent.keyval is '@' && key is 0;
+            } else {
+                event.character = cast(char) OS.gdk_keyval_to_unicode (key);
+            }
+        }
+    }
+    if (event.keyCode is 0 && event.character is 0) {
+        if (!isNull) return false;
+    }
+    return setInputState (event, keyEvent.state);
+}
+
+void setOrientation () {
+}
+
+int /*long*/ shellMapProc (GtkWidget* handle, int /*long*/ arg0, int /*long*/ user_data) {
+    return 0;
+}
+
+int /*long*/ sizeAllocateProc (GtkWidget* handle, int /*long*/ arg0, int /*long*/ user_data) {
+    return 0;
+}
+
+int /*long*/ sizeRequestProc (GtkWidget* 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 override String toString () {
+    String str = "*Disposed*";
+    if (!isDisposed ()) {
+        str = "*Wrong Thread*";
+        if (isValidThread ()) str = getNameText ();
+    }
+    return getName () ~ " {" ~ str ~ "}";
+}
+
+GtkWidget* topHandle () {
+    return handle;
+}
+
+int /*long*/ timerProc (GtkWidget* widget) {
+    return 0;
+}
+
+void treeSelectionProc (
+    GtkTreeModel *model,
+    GtkTreePath *path,
+    GtkTreeIter *iter,
+    int[] selection,
+    int length)
+{
+}
+
+bool translateTraversal (int event) {
+    return false;
+}
+
+int /*long*/ windowProc (GtkWidget* handle, int /*long*/ user_data) {
+    void trace( String str ){
+        version(LOG) getDwtLogger().error( __FILE__, __LINE__,  "Widget windowProc {}", str ).flush;
+    }
+
+    switch (cast(int)/*64*/user_data) {
+        case ACTIVATE:
+            trace( "ACTIVATE" );
+            return gtk_activate (handle);
+        case CHANGED:
+            trace( "CHANGED" );
+            return gtk_changed (handle);
+        case CLICKED:
+            trace( "CLICKED" );
+            return gtk_clicked (handle);
+        case DAY_SELECTED:
+            trace( "DAY_SELECTED" );
+            return gtk_day_selected (handle);
+        case HIDE:
+            trace( "HIDE" );
+            return gtk_hide (handle);
+        case GRAB_FOCUS:
+            trace( "GRAB_FOCUS" );
+            return gtk_grab_focus (handle);
+        case MAP:
+            trace( "MAP" );
+            return gtk_map (handle);
+        case MONTH_CHANGED:
+            trace( "MONTH_CHANGED" );
+            return gtk_month_changed (handle);
+        case OUTPUT:
+            trace( "OUTPUT" );
+            return gtk_output (handle);
+        case POPUP_MENU:
+            trace( "POPUP_MENU" );
+            return gtk_popup_menu (handle);
+        case PREEDIT_CHANGED:
+            trace( "PREEDIT_CHANGED" );
+            return gtk_preedit_changed (cast(GtkIMContext*)handle);
+        case REALIZE:
+            trace( "REALIZE" );
+            return gtk_realize (handle);
+        case SELECT:
+            trace( "SELECT" );
+            return gtk_select (cast(int)handle);
+        case SHOW:
+            trace( "SHOW" );
+            return gtk_show (handle);
+        case VALUE_CHANGED:
+            trace( "VALUE_CHANGED" );
+            return gtk_value_changed (cast(int)handle);
+        case UNMAP:
+            trace( "UNMAP" );
+            return gtk_unmap (handle);
+        case UNREALIZE:
+            trace( "UNREALIZE" );
+            return gtk_unrealize (handle);
+        default:
+            trace( "default" );
+            return 0;
+    }
+}
+
+int /*long*/ windowProc (GtkWidget* handle, int /*long*/ arg0, int /*long*/ user_data) {
+    void trace( String str ){
+        version(LOG) getDwtLogger().error( __FILE__, __LINE__,  "Widget windowProc1 {}", str ).flush;
+    }
+
+    switch (cast(int)/*64*/user_data) {
+        case EXPOSE_EVENT_INVERSE: {
+            trace( "EXPOSE_EVENT_INVERSE" );
+            GdkEventExpose* gdkEvent = cast(GdkEventExpose*) arg0;
+            auto paintWindow = paintWindow();
+            auto window = gdkEvent.window;
+            if (window !is paintWindow) return 0;
+            return (state & OBSCURED) !is 0 ? 1 : 0;
+        }
+        case BUTTON_PRESS_EVENT_INVERSE:
+        case BUTTON_RELEASE_EVENT_INVERSE:
+        case MOTION_NOTIFY_EVENT_INVERSE: {
+            trace( "BUTTON_PRESS_EVENT_INVERSE BUTTON_RELEASE_EVENT_INVERSE MOTION_NOTIFY_EVENT_INVERSE" );
+            return 1;
+        }
+        case BUTTON_PRESS_EVENT:
+            trace( "BUTTON_PRESS_EVENT" );
+            return gtk_button_press_event (handle, cast(GdkEventButton*)arg0);
+        case BUTTON_RELEASE_EVENT:
+            trace( "BUTTON_RELEASE_EVENT" );
+            return gtk_button_release_event (handle, cast(GdkEventButton*)arg0);
+        case COMMIT:
+            trace( "COMMIT" );
+            return gtk_commit (cast(GtkIMContext*)handle, cast(char*)arg0);
+        case CONFIGURE_EVENT:
+            trace( "CONFIGURE_EVENT" );
+            return gtk_configure_event (handle, arg0);
+        case DELETE_EVENT:
+            trace( "DELETE_EVENT" );
+            return gtk_delete_event (handle, arg0);
+        case ENTER_NOTIFY_EVENT:
+            trace( "ENTER_NOTIFY_EVENT" );
+            return gtk_enter_notify_event (handle, cast(GdkEventCrossing*)arg0);
+        case EVENT:
+            trace( "EVENT" );
+            return gtk_event (handle, cast(GdkEvent*)arg0);
+        case POPULATE_POPUP:
+            trace( "POPULATE_POPUP" );
+            return gtk_populate_popup (handle, cast(GtkWidget*)arg0);
+        case EVENT_AFTER:
+            trace( "EVENT_AFTER" );
+            return gtk_event_after (handle, cast(GdkEvent*)arg0);
+        case EXPOSE_EVENT:
+            trace( "EXPOSE_EVENT" );
+            return gtk_expose_event (handle, cast(GdkEventExpose*)arg0);
+        case FOCUS:
+            trace( "FOCUS" );
+            return gtk_focus (handle, arg0);
+        case FOCUS_IN_EVENT:
+            trace( "FOCUS_IN_EVENT" );
+            return gtk_focus_in_event (handle, cast(GdkEventFocus*)arg0);
+        case FOCUS_OUT_EVENT:
+            trace( "FOCUS_OUT_EVENT" );
+            return gtk_focus_out_event (handle, cast(GdkEventFocus*)arg0);
+        case KEY_PRESS_EVENT:
+            trace( "KEY_PRESS_EVENT" );
+            return gtk_key_press_event (handle, cast(GdkEventKey*)arg0);
+        case KEY_RELEASE_EVENT:
+            trace( "KEY_RELEASE_EVENT" );
+            return gtk_key_release_event (handle, cast(GdkEventKey*)arg0);
+        case INPUT:
+            trace( "INPUT" );
+            return gtk_input (handle, arg0);
+        case LEAVE_NOTIFY_EVENT:
+            trace( "LEAVE_NOTIFY_EVENT" );
+            return gtk_leave_notify_event (handle, cast(GdkEventCrossing*)arg0);
+        case MAP_EVENT:
+            trace( "MAP_EVENT" );
+            return gtk_map_event (handle, arg0);
+        case MNEMONIC_ACTIVATE:
+            trace( "MNEMONIC_ACTIVATE" );
+            return gtk_mnemonic_activate (handle, arg0);
+        case MOTION_NOTIFY_EVENT:
+            trace( "MOTION_NOTIFY_EVENT" );
+            return gtk_motion_notify_event (handle, cast(GdkEventMotion*)arg0);
+        case MOVE_FOCUS:
+            trace( "MOVE_FOCUS" );
+            return gtk_move_focus (handle, arg0);
+        case SCROLL_EVENT:
+            trace( "SCROLL_EVENT" );
+            return gtk_scroll_event (handle, cast(GdkEventScroll*)arg0);
+        case SHOW_HELP:
+            trace( "SHOW_HELP" );
+            return gtk_show_help (handle, arg0);
+        case SIZE_ALLOCATE:
+            trace( "SIZE_ALLOCATE" );
+            return gtk_size_allocate (handle, arg0);
+        case STYLE_SET:
+            trace( "STYLE_SET" );
+            return gtk_style_set (handle, arg0);
+        case TOGGLED:
+            trace( "TOGGLED" );
+            return gtk_toggled (cast(int)handle, cast(char*)arg0);
+        case UNMAP_EVENT:
+            trace( "UNMAP_EVENT" );
+            return gtk_unmap_event (handle, arg0);
+        case VISIBILITY_NOTIFY_EVENT:
+            trace( "VISIBILITY_NOTIFY_EVENT" );
+            return gtk_visibility_notify_event (handle, cast(GdkEventVisibility*)arg0);
+        case WINDOW_STATE_EVENT:
+            trace( "WINDOW_STATE_EVENT" );
+            return gtk_window_state_event (handle, cast(GdkEventWindowState*)arg0);
+        default:
+            trace( "default" );
+            return 0;
+    }
+}
+
+int /*long*/ windowProc (GtkWidget* handle, int /*long*/ arg0, int /*long*/ arg1, int /*long*/ user_data) {
+    void trace( String str ){
+        version(LOG) getDwtLogger().error( __FILE__, __LINE__,  "Widget windowProc2 {}", str ).flush;
+    }
+
+    switch (cast(int)/*64*/user_data) {
+        case DELETE_RANGE:
+            trace( "DELETE_RANGE" );
+            return gtk_delete_range (handle, arg0, arg1);
+        case DELETE_TEXT:
+            trace( "DELETE_TEXT" );
+            return gtk_delete_text (handle, arg0, arg1);
+        case ROW_ACTIVATED:
+            trace( "ROW_ACTIVATED" );
+            gtk_row_activated (cast(GtkTreeView*)handle, cast(GtkTreePath*)arg0, cast(GtkTreeViewColumn*)arg1);
+            return 0;
+        case SCROLL_CHILD:
+            trace( "SCROLL_CHILD" );
+            return gtk_scroll_child (handle, arg0, arg1);
+        case SWITCH_PAGE:
+            trace( "SWITCH_PAGE" );
+            return gtk_switch_page (handle, arg0, arg1);
+        case TEST_COLLAPSE_ROW:
+            trace( "TEST_COLLAPSE_ROW" );
+            return gtk_test_collapse_row (cast(GtkTreeView*)handle, cast(GtkTreeIter*)arg0, cast(GtkTreePath*)arg1);
+        case TEST_EXPAND_ROW:
+            trace( "TEST_EXPAND_ROW" );
+            return gtk_test_expand_row(cast(GtkTreeView*)handle, cast(GtkTreeIter*)arg0, cast(GtkTreePath*)arg1);
+        default:
+            trace( "default" );
+            return 0;
+    }
+}
+
+int /*long*/ windowProc (GtkWidget* handle, int /*long*/ arg0, int /*long*/ arg1, int /*long*/ arg2, int /*long*/ user_data) {
+    void trace( String str ){
+        version(LOG) getDwtLogger().error( __FILE__, __LINE__,  "Widget windowProc3 {}", str ).flush;
+    }
+
+    switch (cast(int)/*64*/user_data) {
+        case CHANGE_VALUE:
+            trace( "CHANGE_VALUE" );
+            return gtk_change_value (handle, arg0, arg1, arg2);
+        case EXPAND_COLLAPSE_CURSOR_ROW:
+            trace( "EXPAND_COLLAPSE_CURSOR_ROW" );
+            return gtk_expand_collapse_cursor_row (handle, arg0, arg1, arg2);
+        case INSERT_TEXT:
+            trace( "INSERT_TEXT" );
+            return gtk_insert_text (cast(GtkEditable*)handle, cast(char*)arg0, arg1, arg2);
+        case TEXT_BUFFER_INSERT_TEXT:
+            trace( "TEXT_BUFFER_INSERT_TEXT" );
+            return gtk_text_buffer_insert_text (cast(GtkTextBuffer*)handle, cast(GtkTextIter*)arg0, cast(char*)arg1, arg2);
+        default:
+            trace( "default" );
+            return 0;
+    }
+}
+
+}