--- a/dwt/internal/gtk/OS.d	Wed Jan 09 06:17:26 2008 +0100
+++ b/dwt/internal/gtk/OS.d	Wed Jan 09 06:57:07 2008 +0100
@@ -1992,12 +1992,12 @@
     gchar*  GTK_ACCEL_LABEL_GET_ACCEL_STRING( GtkAccelLabel* arg0)
             { return arg0.accel_string; }
 
-    GtkWidget* GTK_SCROLLED_WINDOW_HSCROLLBAR( GtkScrolledWindow* arg0 )
+    static GtkWidget* GTK_SCROLLED_WINDOW_HSCROLLBAR( GtkScrolledWindow* arg0 )
             { return arg0.hscrollbar; }
-    GtkWidget* GTK_SCROLLED_WINDOW_VSCROLLBAR( GtkScrolledWindow* arg0 )
+    static GtkWidget* GTK_SCROLLED_WINDOW_VSCROLLBAR( GtkScrolledWindow* arg0 )
             { return arg0.vscrollbar; }
 
-    int GTK_SCROLLED_WINDOW_SCROLLBAR_SPACING( GtkScrolledWindow* arg0)
+    static int GTK_SCROLLED_WINDOW_SCROLLBAR_SPACING( GtkScrolledWindow* arg0)
     {
         return   ((cast(GtkScrolledWindowClass*) ((cast(GTypeInstance*) arg0).g_class) ).scrollbar_spacing >= 0 ?
                   (cast(GtkScrolledWindowClass*) ((cast(GTypeInstance*) arg0).g_class)).scrollbar_spacing : 3) ;
@@ -2133,9 +2133,15 @@
         *arg2 = arg0.text[arg1];
     }
 
+    //gtk_style_get_xthickness(arg0) (arg0)->xthickness
+    static int gtk_style_get_xthickness( GtkStyle* arg0 ) {
+        return arg0.xthickness;
+    }
+    //gtk_style_get_ythickness(arg0) (arg0)->ythickness
+    static int gtk_style_get_ythickness( GtkStyle* arg0 ) {
+        return arg0.ythickness;
+    }
     /+
-    gtk_style_get_xthickness(arg0) (arg0)->xthickness
-    gtk_style_get_ythickness(arg0) (arg0)->ythickness
     gtk_style_get_fg_gc(arg0, arg1, arg2) *arg2 = (arg0)->fg_gc[arg1]
     gtk_style_get_bg_gc(arg0, arg1, arg2) *arg2 = (arg0)->bg_gc[arg1]
     gtk_style_get_light_gc(arg0, arg1, arg2) *arg2 = (arg0)->light_gc[arg1]

--- a/dwt/internal/gtk/c/gtktypes.d	Wed Jan 09 06:17:26 2008 +0100
+++ b/dwt/internal/gtk/c/gtktypes.d	Wed Jan 09 06:57:07 2008 +0100
@@ -4334,7 +4334,15 @@
  * the page size.
  * In a GtkScrollbar this is the size of the area which is currently visible.
  */
-public struct GtkAdjustment{}
+public struct GtkAdjustment{
+GtkObject parent_instance;
+double lower;
+double upper;
+double value;
+double step_increment;
+double page_increment;
+double page_size;
+}
 
 
 /**

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/widgets/ScrollBar.d	Wed Jan 09 06:57:07 2008 +0100
@@ -0,0 +1,746 @@
+/*******************************************************************************
+ * 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.ScrollBar;
+
+import dwt.widgets.Control;
+import dwt.widgets.Scrollable;
+import dwt.internal.gtk.c.gtktypes;
+
+class ScrollBar : Control {
+    GtkAdjustment* adjustmentHandle;
+    Scrollable parent;
+}
+
+/+
+import dwt.SWT;
+import dwt.internal.gtk.*;
+import dwt.graphics.*;
+import dwt.events.*;
+
+/**
+ * Instances of this class are selectable user interface
+ * objects that represent a range of positive, numeric values.
+ * <p>
+ * At any given moment, a given scroll bar will have a
+ * single 'selection' that is considered to be its
+ * value, which is constrained to be within the range of
+ * values the scroll bar represents (that is, between its
+ * <em>minimum</em> and <em>maximum</em> values).
+ * </p><p>
+ * Typically, scroll bars will be made up of five areas:
+ * <ol>
+ * <li>an arrow button for decrementing the value</li>
+ * <li>a page decrement area for decrementing the value by a larger amount</li>
+ * <li>a <em>thumb</em> for modifying the value by mouse dragging</li>
+ * <li>a page increment area for incrementing the value by a larger amount</li>
+ * <li>an arrow button for incrementing the value</li>
+ * </ol>
+ * Based on their style, scroll bars are either <code>HORIZONTAL</code>
+ * (which have a left facing button for decrementing the value and a
+ * right facing button for incrementing it) or <code>VERTICAL</code>
+ * (which have an upward facing button for decrementing the value
+ * and a downward facing buttons for incrementing it).
+ * </p><p>
+ * On some platforms, the size of the scroll bar's thumb can be
+ * varied relative to the magnitude of the range of values it
+ * represents (that is, relative to the difference between its
+ * maximum and minimum values). Typically, this is used to
+ * indicate some proportional value such as the ratio of the
+ * visible area of a document to the total amount of space that
+ * it would take to display it. SWT supports setting the thumb
+ * size even if the underlying platform does not, but in this
+ * case the appearance of the scroll bar will not change.
+ * </p><p>
+ * Scroll bars are created by specifying either <code>H_SCROLL</code>,
+ * <code>V_SCROLL</code> or both when creating a <code>Scrollable</code>.
+ * They are accessed from the <code>Scrollable</code> using
+ * <code>getHorizontalBar</code> and <code>getVerticalBar</code>.
+ * </p><p>
+ * Note: Scroll bars are not Controls.  On some platforms, scroll bars
+ * that appear as part of some standard controls such as a text or list
+ * have no operating system resources and are not children of the control.
+ * For this reason, scroll bars are treated specially.  To create a control
+ * that looks like a scroll bar but has operating system resources, use
+ * <code>Slider</code>.
+ * </p>
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>HORIZONTAL, VERTICAL</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>Selection</dd>
+ * </dl>
+ * <p>
+ * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified.
+ * </p><p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see Slider
+ * @see Scrollable
+ * @see Scrollable#getHorizontalBar
+ * @see Scrollable#getVerticalBar
+ */
+public class ScrollBar extends Widget {
+	Scrollable parent;
+	int /*long*/ adjustmentHandle;
+	int detail;
+	boolean dragSent;
+
+ScrollBar () {
+}
+
+/**
+* Creates a new instance of the widget.
+*/
+ScrollBar (Scrollable parent, int style) {
+	super (parent, checkStyle (style));
+	this.parent = parent;
+	createWidget (0);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the user changes the receiver's value, by sending
+ * it one of the messages defined in the <code>SelectionListener</code>
+ * interface.
+ * <p>
+ * When <code>widgetSelected</code> is called, the event object detail field contains one of the following values:
+ * <code>SWT.NONE</code> - for the end of a drag.
+ * <code>SWT.DRAG</code>.
+ * <code>SWT.HOME</code>.
+ * <code>SWT.END</code>.
+ * <code>SWT.ARROW_DOWN</code>.
+ * <code>SWT.ARROW_UP</code>.
+ * <code>SWT.PAGE_DOWN</code>.
+ * <code>SWT.PAGE_UP</code>.
+ * <code>widgetDefaultSelected</code> is not called.
+ * </p>
+ *
+ * @param listener the listener which should be notified when the user changes the receiver's value
+ *
+ * @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 SelectionListener
+ * @see #removeSelectionListener
+ * @see SelectionEvent
+ */
+public void addSelectionListener (SelectionListener listener) {
+	checkWidget ();
+	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+	TypedListener typedListener = new TypedListener (listener);
+	addListener (SWT.Selection,typedListener);
+	addListener (SWT.DefaultSelection,typedListener);
+}
+
+static int checkStyle (int style) {
+	return checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0);
+}
+
+void deregister () {
+	super.deregister ();
+	if (adjustmentHandle != 0) display.removeWidget (adjustmentHandle);
+}
+
+/**
+ * Returns <code>true</code> if the receiver is enabled, and
+ * <code>false</code> otherwise. A disabled control is typically
+ * not selectable from the user interface and draws with an
+ * inactive or "grayed" look.
+ *
+ * @return the receiver's enabled state
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #isEnabled
+ */
+public boolean getEnabled () {
+	checkWidget ();
+	if (handle != 0) return OS.GTK_WIDGET_SENSITIVE (handle);
+	return true;
+}
+
+/**
+ * Returns the amount that the receiver's value will be
+ * modified by when the up/down (or right/left) arrows
+ * are pressed.
+ *
+ * @return the increment
+ *
+ * @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 getIncrement () {
+	checkWidget ();
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	return (int) adjustment.step_increment;
+}
+
+/**
+ * Returns the maximum value which the receiver will allow.
+ *
+ * @return the maximum
+ *
+ * @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 getMaximum () {
+	checkWidget ();
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	return (int) adjustment.upper;
+}
+
+/**
+ * Returns the minimum value which the receiver will allow.
+ *
+ * @return the minimum
+ *
+ * @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 getMinimum () {
+	checkWidget ();
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	return (int) adjustment.lower;
+}
+
+/**
+ * Returns the amount that the receiver's value will be
+ * modified by when the page increment/decrement areas
+ * are selected.
+ *
+ * @return the page increment
+ *
+ * @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 getPageIncrement () {
+	checkWidget ();
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	return (int) adjustment.page_increment;
+}
+
+/**
+ * Returns the receiver's parent, which must be a Scrollable.
+ *
+ * @return the receiver's parent
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Scrollable getParent () {
+	checkWidget ();
+	return parent;
+}
+
+/**
+ * Returns the single 'selection' that is the receiver's value.
+ *
+ * @return the selection
+ *
+ * @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 getSelection () {
+	checkWidget ();
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	return (int) adjustment.value;
+}
+
+/**
+ * Returns a point describing the receiver's size. The
+ * x coordinate of the result is the width of the receiver.
+ * The y coordinate of the result is the height of the
+ * receiver.
+ *
+ * @return the receiver's size
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Point getSize () {
+	checkWidget ();
+	if (handle == 0) return new Point (0,0);
+	GtkRequisition requisition = new GtkRequisition ();
+	OS.gtk_widget_size_request (handle, requisition);
+	return new Point (requisition.width, requisition.height);
+}
+
+/**
+ * Returns the size of the receiver's thumb relative to the
+ * difference between its maximum and minimum values.
+ *
+ * @return the thumb value
+ *
+ * @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 ScrollBar
+ */
+public int getThumb () {
+	checkWidget ();
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	return (int) adjustment.page_size;
+}
+
+/**
+ * Returns <code>true</code> if the receiver is visible, and
+ * <code>false</code> otherwise.
+ * <p>
+ * If one of the receiver's ancestors is not visible or some
+ * other condition makes the receiver not visible, this method
+ * may still indicate that it is considered visible even though
+ * it may not actually be showing.
+ * </p>
+ *
+ * @return the receiver's visibility state
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public boolean getVisible () {
+	checkWidget ();
+	int /*long*/ scrolledHandle = parent.scrolledHandle;
+	int [] hsp = new int [1], vsp = new int [1];
+	OS.gtk_scrolled_window_get_policy (scrolledHandle, hsp, vsp);
+	if ((style & SWT.HORIZONTAL) != 0) {
+		return hsp [0] != OS.GTK_POLICY_NEVER;
+	} else {
+		return vsp [0] != OS.GTK_POLICY_NEVER;
+	}
+}
+
+int /*long*/ gtk_button_press_event (int /*long*/ widget, int /*long*/ eventPtr) {
+	int /*long*/ result = super.gtk_button_press_event (widget, eventPtr);
+	if (result != 0) return result;
+	detail = OS.GTK_SCROLL_NONE;
+	dragSent = false;
+	return result;
+}
+
+int /*long*/ gtk_change_value (int /*long*/ widget, int /*long*/ scroll, int /*long*/ value1, int /*long*/ value2) {
+	detail = (int)/*64*/scroll;
+	return 0;
+}
+
+int /*long*/ gtk_value_changed (int /*long*/ adjustment) {
+	Event event = new Event ();
+	dragSent = detail == OS.GTK_SCROLL_JUMP;
+	switch (detail) {
+		case OS.GTK_SCROLL_NONE:			event.detail = SWT.NONE; break;
+		case OS.GTK_SCROLL_JUMP:			event.detail = SWT.DRAG; break;
+		case OS.GTK_SCROLL_START:			event.detail = SWT.HOME; break;
+		case OS.GTK_SCROLL_END:				event.detail = SWT.END; break;
+		case OS.GTK_SCROLL_PAGE_DOWN:
+		case OS.GTK_SCROLL_PAGE_RIGHT:
+		case OS.GTK_SCROLL_PAGE_FORWARD:	event.detail = SWT.PAGE_DOWN; break;
+		case OS.GTK_SCROLL_PAGE_UP:
+		case OS.GTK_SCROLL_PAGE_LEFT:
+		case OS.GTK_SCROLL_PAGE_BACKWARD:	event.detail = SWT.PAGE_UP; break;
+		case OS.GTK_SCROLL_STEP_DOWN:
+		case OS.GTK_SCROLL_STEP_RIGHT:
+		case OS.GTK_SCROLL_STEP_FORWARD:	event.detail = SWT.ARROW_DOWN; break;
+		case OS.GTK_SCROLL_STEP_UP:
+		case OS.GTK_SCROLL_STEP_LEFT:
+		case OS.GTK_SCROLL_STEP_BACKWARD:	event.detail = SWT.ARROW_UP; break;
+	}
+	detail = OS.GTK_SCROLL_NONE;
+	if (!dragSent) detail = OS.GTK_SCROLL_NONE;
+	postEvent (SWT.Selection, event);
+	parent.updateScrollBarValue (this);
+	return 0;
+}
+
+int /*long*/ gtk_event_after (int /*long*/ widget, int /*long*/ gdkEvent) {
+	GdkEvent gtkEvent = new GdkEvent ();
+	OS.memmove (gtkEvent, gdkEvent, GdkEvent.sizeof);
+	switch (gtkEvent.type) {
+		case OS.GDK_BUTTON_RELEASE: {
+			GdkEventButton gdkEventButton = new GdkEventButton ();
+			OS.memmove (gdkEventButton, gdkEvent, GdkEventButton.sizeof);
+			if (gdkEventButton.button == 1 && detail == SWT.DRAG) {
+				if (!dragSent) {
+					Event event = new Event ();
+					event.detail = SWT.DRAG;
+					postEvent (SWT.Selection, event);
+				}
+				postEvent (SWT.Selection);
+			}
+			detail = OS.GTK_SCROLL_NONE;
+			dragSent = false;
+			break;
+		}
+	}
+	return super.gtk_event_after (widget, gdkEvent);
+}
+
+void hookEvents () {
+	super.hookEvents ();
+	if (OS.GTK_VERSION >= OS.VERSION (2, 6, 0)) {
+		OS.g_signal_connect_closure (handle, OS.change_value, display.closures [CHANGE_VALUE], false);
+	}
+	OS.g_signal_connect_closure (adjustmentHandle, OS.value_changed, display.closures [VALUE_CHANGED], false);
+	OS.g_signal_connect_closure_by_id (handle, display.signalIds [EVENT_AFTER], 0, display.closures [EVENT_AFTER], false);
+	OS.g_signal_connect_closure_by_id (handle, display.signalIds [BUTTON_PRESS_EVENT], 0, display.closures [BUTTON_PRESS_EVENT], false);
+}
+
+/**
+ * Returns <code>true</code> if the receiver is enabled and all
+ * of the receiver's ancestors are enabled, and <code>false</code>
+ * otherwise. A disabled control is typically not selectable from the
+ * user interface and draws with an inactive or "grayed" look.
+ *
+ * @return the receiver's enabled state
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getEnabled
+ */
+public boolean isEnabled () {
+	checkWidget ();
+	return getEnabled () && getParent ().getEnabled ();
+}
+
+/**
+ * Returns <code>true</code> if the receiver is visible and all
+ * of the receiver's ancestors are visible and <code>false</code>
+ * otherwise.
+ *
+ * @return the receiver's visibility state
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @see #getVisible
+ */
+public boolean isVisible () {
+	checkWidget ();
+	return getVisible () && getParent ().isVisible ();
+}
+
+void register () {
+	super.register ();
+	if (adjustmentHandle != 0) display.addWidget (adjustmentHandle, this);
+}
+
+void releaseParent () {
+	super.releaseParent ();
+	if (parent.horizontalBar == this) parent.horizontalBar = null;
+	if (parent.verticalBar == this) parent.verticalBar = null;
+}
+
+void releaseWidget () {
+	super.releaseWidget ();
+	parent = null;
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the user changes the receiver's value.
+ *
+ * @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 SelectionListener
+ * @see #addSelectionListener
+ */
+public void removeSelectionListener (SelectionListener listener) {
+	checkWidget ();
+	if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
+	if (eventTable == null) return;
+	eventTable.unhook (SWT.Selection, listener);
+	eventTable.unhook (SWT.DefaultSelection,listener);
+}
+
+/**
+ * Enables the receiver if the argument is <code>true</code>,
+ * and disables it otherwise. A disabled control is typically
+ * not selectable from the user interface and draws with an
+ * inactive or "grayed" look.
+ *
+ * @param enabled the new enabled state
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setEnabled (boolean enabled) {
+	checkWidget ();
+	if (handle != 0) OS.gtk_widget_set_sensitive (handle, enabled);
+}
+
+/**
+ * Sets the amount that the receiver's value will be
+ * modified by when the up/down (or right/left) arrows
+ * are pressed to the argument, which must be at least
+ * one.
+ *
+ * @param value the new increment (must be greater than zero)
+ *
+ * @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 setIncrement (int value) {
+	checkWidget ();
+	if (value < 1) return;
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	adjustment.step_increment = (float) value;
+	OS.memmove (adjustmentHandle, adjustment);
+	OS.g_signal_handlers_block_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+	OS.gtk_adjustment_changed (adjustmentHandle);
+	OS.g_signal_handlers_unblock_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+}
+
+/**
+ * Sets the maximum. If this value is negative or less than or
+ * equal to the minimum, the value is ignored. If necessary, first
+ * the thumb and then the selection are adjusted to fit within the
+ * new range.
+ *
+ * @param value the new maximum
+ *
+ * @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 setMaximum (int value) {
+	checkWidget ();
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	int minimum = (int) adjustment.lower;
+	if (value <= minimum) return;
+	adjustment.upper = value;
+	adjustment.page_size = Math.min ((int)adjustment.page_size, value - minimum);
+	adjustment.value = Math.min ((int)adjustment.value, (int)(value - adjustment.page_size));
+	OS.memmove (adjustmentHandle, adjustment);
+	OS.g_signal_handlers_block_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+	OS.gtk_adjustment_changed (adjustmentHandle);
+	OS.g_signal_handlers_unblock_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+}
+
+/**
+ * Sets the minimum value. If this value is negative or greater
+ * than or equal to the maximum, the value is ignored. If necessary,
+ * first the thumb and then the selection are adjusted to fit within
+ * the new range.
+ *
+ * @param value the new minimum
+ *
+ * @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 setMinimum (int value) {
+	checkWidget ();
+	if (value < 0) return;
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	int maximum = (int) adjustment.upper;
+	if (value >= maximum) return;
+	adjustment.lower = value;
+	adjustment.page_size = Math.min ((int)adjustment.page_size, maximum - value);
+	adjustment.value = Math.max ((int)adjustment.value, value);
+	OS.memmove (adjustmentHandle, adjustment);
+	OS.g_signal_handlers_block_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+	OS.gtk_adjustment_changed (adjustmentHandle);
+	OS.g_signal_handlers_unblock_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+}
+
+/**
+ * Sets the amount that the receiver's value will be
+ * modified by when the page increment/decrement areas
+ * are selected to the argument, which must be at least
+ * one.
+ *
+ * @param value the page increment (must be greater than zero)
+ *
+ * @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 setPageIncrement (int value) {
+	checkWidget ();
+	if (value < 1) return;
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	adjustment.page_increment = (float) value;
+	OS.memmove (adjustmentHandle, adjustment);
+	OS.g_signal_handlers_block_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+	OS.gtk_adjustment_changed (adjustmentHandle);
+	OS.g_signal_handlers_unblock_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+}
+
+/**
+ * Sets the single <em>selection</em> that is the receiver's
+ * value to the argument which must be greater than or equal
+ * to zero.
+ *
+ * @param selection the new selection (must be zero or greater)
+ *
+ * @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 setSelection (int value) {
+	checkWidget ();
+	value = Math.min (value, getMaximum() - getThumb());
+	OS.g_signal_handlers_block_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+	OS.gtk_adjustment_set_value (adjustmentHandle, value);
+	OS.g_signal_handlers_unblock_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+}
+
+/**
+ * Sets the size of the receiver's thumb relative to the
+ * difference between its maximum and minimum values.  This new
+ * value will be ignored if it is less than one, and will be
+ * clamped if it exceeds the receiver's current range.
+ *
+ * @param value the new thumb value, which must be at least one and not
+ * larger than the size of the current range
+ *
+ * @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 setThumb (int value) {
+	checkWidget ();
+	if (value < 1) return;
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	value = (int) Math.min (value, (int)(adjustment.upper - adjustment.lower));
+	adjustment.page_size = (double) value;
+	adjustment.value = Math.min ((int)adjustment.value, (int)(adjustment.upper - value));
+	OS.memmove (adjustmentHandle, adjustment);
+	OS.g_signal_handlers_block_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+	OS.gtk_adjustment_changed (adjustmentHandle);
+	OS.g_signal_handlers_unblock_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+}
+
+/**
+ * Sets the receiver's selection, minimum value, maximum
+ * value, thumb, increment and page increment all at once.
+ * <p>
+ * Note: This is similar to setting the values individually
+ * using the appropriate methods, but may be implemented in a
+ * more efficient fashion on some platforms.
+ * </p>
+ *
+ * @param selection the new selection value
+ * @param minimum the new minimum value
+ * @param maximum the new maximum value
+ * @param thumb the new thumb value
+ * @param increment the new increment value
+ * @param pageIncrement the new pageIncrement value
+ *
+ * @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 setValues (int selection, int minimum, int maximum, int thumb, int increment, int pageIncrement) {
+	checkWidget ();
+	if (minimum < 0) return;
+	if (maximum < 0) return;
+	if (thumb < 1) return;
+	if (increment < 1) return;
+	if (pageIncrement < 1) return;
+	thumb = Math.min (thumb, maximum - minimum);
+	GtkAdjustment adjustment = new GtkAdjustment ();
+	OS.memmove (adjustment, adjustmentHandle);
+	adjustment.lower = minimum;
+	adjustment.upper = maximum;
+	adjustment.step_increment = increment;
+	adjustment.page_increment = pageIncrement;
+	adjustment.page_size = thumb;
+	adjustment.value = Math.min (Math.max (selection, minimum), maximum - thumb);
+	OS.memmove (adjustmentHandle, adjustment);
+	OS.g_signal_handlers_block_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+	OS.gtk_adjustment_changed (adjustmentHandle);
+	OS.gtk_adjustment_value_changed (adjustmentHandle);
+	OS.g_signal_handlers_unblock_matched (adjustmentHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED);
+}
+
+/**
+ * Marks the receiver as visible if the argument is <code>true</code>,
+ * and marks it invisible otherwise.
+ * <p>
+ * If one of the receiver's ancestors is not visible or some
+ * other condition makes the receiver not visible, marking
+ * it visible may not actually cause it to be displayed.
+ * </p>
+ *
+ * @param visible the new visibility state
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setVisible (boolean visible) {
+	checkWidget ();
+	parent.setScrollBarVisible (this, visible);
+}
+
+}
++/
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/widgets/Scrollable.d	Wed Jan 09 06:57:07 2008 +0100
@@ -0,0 +1,386 @@
+/*******************************************************************************
+ * 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.Scrollable;
+
+
+import dwt.SWT;
+import dwt.internal.gtk.OS;
+import dwt.internal.gtk.c.gdktypes;
+import dwt.internal.gtk.c.gtktypes;
+import dwt.graphics.Rectangle;
+import dwt.widgets.Composite;
+import dwt.widgets.Control;
+import dwt.widgets.Display;
+import dwt.widgets.ScrollBar;
+import dwt.widgets.Widget;
+
+import tango.stdc.string;
+import tango.stdc.stringz;
+
+/**
+ * This class is the abstract superclass of all classes which
+ * represent controls that have standard scroll bars.
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>H_SCROLL, V_SCROLL</dd>
+ * <dt><b>Events:</b>
+ * <dd>(none)</dd>
+ * </dl>
+ * <p>
+ * IMPORTANT: This class is intended to be subclassed <em>only</em>
+ * within the SWT implementation.
+ * </p>
+ */
+public abstract class Scrollable : Control {
+	GtkScrolledWindow* scrolledHandle;
+	ScrollBar horizontalBar, verticalBar;
+
+/**
+ * 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 composite control which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ *    <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ *
+ * @see SWT#H_SCROLL
+ * @see SWT#V_SCROLL
+ * @see Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public this (Composite parent, int style) {
+	super (parent, style);
+}
+
+GtkWidget* clientHandle () {
+	return handle;
+}
+
+/**
+ * Given a desired <em>client area</em> for the receiver
+ * (as described by the arguments), returns the bounding
+ * rectangle which would be required to produce that client
+ * area.
+ * <p>
+ * In other words, it returns a rectangle such that, if the
+ * receiver's bounds were set to that rectangle, the area
+ * of the receiver which is capable of displaying data
+ * (that is, not covered by the "trimmings") would be the
+ * rectangle described by the arguments (relative to the
+ * receiver's parent).
+ * </p>
+ *
+ * @param x the desired x coordinate of the client area
+ * @param y the desired y coordinate of the client area
+ * @param width the desired width of the client area
+ * @param height the desired height of the client area
+ * @return the required bounds to produce the given client area
+ *
+ * @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 #getClientArea
+ */
+public Rectangle computeTrim (int x, int y, int width, int height) {
+	checkWidget();
+	int border = 0;
+	if (fixedHandle !is null) border += OS.gtk_container_get_border_width (cast(GtkContainer*)fixedHandle);
+	if (scrolledHandle !is null) border += OS.gtk_container_get_border_width (cast(GtkContainer*)scrolledHandle);
+	int trimX = x - border, trimY = y - border;
+	int trimWidth = width + (border * 2), trimHeight = height + (border * 2);
+	trimHeight += hScrollBarWidth ();
+	trimWidth  += vScrollBarWidth ();
+	if (scrolledHandle !is null) {
+		if (OS.gtk_scrolled_window_get_shadow_type (cast(GtkScrolledWindow*)scrolledHandle) !is OS.GTK_SHADOW_NONE) {
+			auto style = OS.gtk_widget_get_style (cast(GtkWidget*)scrolledHandle);
+			int xthickness = OS.gtk_style_get_xthickness (style);
+			int ythickness = OS.gtk_style_get_ythickness (style);
+			trimX -= xthickness;
+			trimY -= ythickness;
+			trimWidth += xthickness * 2;
+			trimHeight += ythickness * 2;
+		}
+	}
+	return new Rectangle (trimX, trimY, trimWidth, trimHeight);
+}
+
+ScrollBar createScrollBar (int style) {
+	if (scrolledHandle is null) return null;
+	ScrollBar bar = new ScrollBar ();
+	bar.parent = this;
+	bar.style = style;
+	bar.display = display;
+	bar.state |= HANDLE;
+	if ((style & SWT.H_SCROLL) !is 0) {
+		bar.handle = OS.GTK_SCROLLED_WINDOW_HSCROLLBAR (scrolledHandle);
+		bar.adjustmentHandle = OS.gtk_scrolled_window_get_hadjustment (scrolledHandle);
+	} else {
+		bar.handle = OS.GTK_SCROLLED_WINDOW_VSCROLLBAR (scrolledHandle);
+		bar.adjustmentHandle = OS.gtk_scrolled_window_get_vadjustment (cast(GtkScrolledWindow*)scrolledHandle);
+	}
+	bar.hookEvents ();
+	bar.register ();
+	return bar;
+}
+
+void createWidget (int index) {
+	super.createWidget (index);
+	if ((style & SWT.H_SCROLL) !is 0) horizontalBar = createScrollBar (SWT.H_SCROLL);
+	if ((style & SWT.V_SCROLL) !is 0) verticalBar = createScrollBar (SWT.V_SCROLL);
+}
+
+void deregister () {
+	super.deregister ();
+	if (scrolledHandle !is null) display.removeWidget (cast(GtkWidget*)scrolledHandle);
+}
+
+public int getBorderWidth () {
+	checkWidget();
+	int border = 0;
+	if (fixedHandle !is null) border += OS.gtk_container_get_border_width (cast(GtkContainer*)fixedHandle);
+	if (scrolledHandle !is null) {
+		border += OS.gtk_container_get_border_width (cast(GtkContainer*)scrolledHandle);
+		if (OS.gtk_scrolled_window_get_shadow_type (cast(GtkScrolledWindow*)scrolledHandle) !is OS.GTK_SHADOW_NONE) {
+			border += OS.gtk_style_get_xthickness (OS.gtk_widget_get_style (cast(GtkWidget*)scrolledHandle));
+		}
+	}
+	return border;
+}
+
+/**
+ * Returns a rectangle which describes the area of the
+ * receiver which is capable of displaying data (that is,
+ * not covered by the "trimmings").
+ *
+ * @return the client area
+ *
+ * @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 #computeTrim
+ */
+public Rectangle getClientArea () {
+	checkWidget ();
+	forceResize ();
+	auto clientHandle = clientHandle ();
+	int x = OS.GTK_WIDGET_X (clientHandle);
+	int y = OS.GTK_WIDGET_Y (clientHandle);
+	int width = (state & ZERO_WIDTH) !is 0 ? 0 : OS.GTK_WIDGET_WIDTH (clientHandle);
+	int height = (state & ZERO_HEIGHT) !is 0 ? 0 : OS.GTK_WIDGET_HEIGHT (clientHandle);
+	return new Rectangle (x, y, width, height);
+}
+/**
+ * Returns the receiver's horizontal scroll bar if it has
+ * one, and null if it does not.
+ *
+ * @return the horizontal scroll bar (or null)
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public ScrollBar getHorizontalBar () {
+	checkWidget ();
+	return horizontalBar;
+}
+/**
+ * Returns the receiver's vertical scroll bar if it has
+ * one, and null if it does not.
+ *
+ * @return the vertical scroll bar (or null)
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public ScrollBar getVerticalBar () {
+	checkWidget ();
+	return verticalBar;
+}
+
+int /*long*/ gtk_scroll_event (GtkWidget* widget, GdkEventScroll* eventPtr) {
+	auto result = super.gtk_scroll_event (widget, eventPtr);
+
+	/*
+	* Feature in GTK.  Scrolled windows do not scroll if the scrollbars
+	* are hidden.  This is not a bug, but is inconsistent with other platforms.
+	* The fix is to set the adjustment values directly.
+	*/
+	if ((state & CANVAS) !is 0) {
+		ScrollBar scrollBar;
+		GdkEventScroll* gdkEvent = new GdkEventScroll ();
+		memmove (gdkEvent, eventPtr, GdkEventScroll.sizeof);
+		if (gdkEvent.direction is OS.GDK_SCROLL_UP || gdkEvent.direction is OS.GDK_SCROLL_DOWN) {
+			scrollBar = verticalBar;
+		} else {
+			scrollBar = horizontalBar;
+		}
+		if (scrollBar !is null && !OS.GTK_WIDGET_VISIBLE (scrollBar.handle) && scrollBar.getEnabled()) {
+			GtkAdjustment* adjustment = new GtkAdjustment ();
+			memmove (adjustment, scrollBar.adjustmentHandle, GtkAdjustment.sizeof );
+			/* Calculate wheel delta to match GTK+ 2.4 and higher */
+			int wheel_delta = cast(int) Math.pow(adjustment.page_size, 2.0 / 3.0);
+			if (gdkEvent.direction is OS.GDK_SCROLL_UP || gdkEvent.direction is OS.GDK_SCROLL_LEFT)
+				wheel_delta = -wheel_delta;
+			int value = cast(int) Math.max(adjustment.lower,
+					Math.min(adjustment.upper - adjustment.page_size, adjustment.value + wheel_delta));
+			OS.gtk_adjustment_set_value (scrollBar.adjustmentHandle, value);
+			return 1;
+		}
+	}
+	return result;
+}
+
+int hScrollBarWidth() {
+	if (horizontalBar is null) return 0;
+	auto hBarHandle = OS.GTK_SCROLLED_WINDOW_HSCROLLBAR(scrolledHandle);
+	if (hBarHandle is null) return 0;
+	GtkRequisition* requisition = new GtkRequisition();
+	OS.gtk_widget_size_request(cast(GtkWidget*)hBarHandle, requisition);
+	int spacing = OS.GTK_SCROLLED_WINDOW_SCROLLBAR_SPACING(scrolledHandle);
+	return requisition.height + spacing;
+}
+
+bool sendLeaveNotify () {
+	return scrolledHandle !is null;
+}
+
+void setOrientation () {
+	super.setOrientation ();
+	if ((style & SWT.RIGHT_TO_LEFT) !is 0) {
+		if (scrolledHandle !is null) {
+			OS.gtk_widget_set_direction (cast(GtkWidget*)scrolledHandle,cast(GtkTextDirection) OS.GTK_TEXT_DIR_RTL);
+		}
+	}
+}
+
+bool setScrollBarVisible (ScrollBar bar, bool visible) {
+	if (scrolledHandle is null) return false;
+	GtkPolicyType hsp, vsp;
+	OS.gtk_scrolled_window_get_policy (scrolledHandle, &hsp, &vsp);
+	GtkPolicyType policy = cast(GtkPolicyType)( visible ? OS.GTK_POLICY_ALWAYS : OS.GTK_POLICY_NEVER);
+	if ((bar.style & SWT.HORIZONTAL) !is 0) {
+		if (hsp is policy) return false;
+		hsp = policy;
+	} else {
+		if (vsp is policy) return false;
+		vsp = policy;
+	}
+	OS.gtk_scrolled_window_set_policy (scrolledHandle, hsp, vsp);
+	bar.sendEvent (visible ? SWT.Show : SWT.Hide);
+	sendEvent (SWT.Resize);
+	return true;
+}
+
+void redrawBackgroundImage () {
+}
+
+void redrawWidget (int x, int y, int width, int height, bool redrawAll, bool all, bool trim) {
+	super.redrawWidget (x, y, width, height, redrawAll, all, trim);
+	if ((OS.GTK_WIDGET_FLAGS (handle) & OS.GTK_REALIZED) is 0) return;
+	if (!trim) return;
+	auto topHandle = topHandle (), paintHandle = paintHandle ();
+	if (topHandle is paintHandle) return;
+	auto window = OS.GTK_WIDGET_WINDOW (topHandle);
+	GdkRectangle* rect = new GdkRectangle ();
+	if (redrawAll) {
+		rect.width = OS.GTK_WIDGET_WIDTH (topHandle);
+		rect.height = OS.GTK_WIDGET_HEIGHT (topHandle);
+	} else {
+		int destX, destY;
+		OS.gtk_widget_translate_coordinates (cast(GtkWidget*)paintHandle, topHandle, x, y, &destX, &destY);
+		rect.x = destX;
+		rect.y = destY;
+		rect.width = width;
+		rect.height = height;
+	}
+	OS.gdk_window_invalidate_rect (window, rect, all);
+}
+
+void register () {
+	super.register ();
+	if (scrolledHandle !is null) display.addWidget (cast(GtkWidget*)scrolledHandle, this);
+}
+
+void releaseHandle () {
+	super.releaseHandle ();
+	scrolledHandle = null;
+}
+
+void releaseChildren (bool destroy) {
+	if (horizontalBar !is null) {
+		horizontalBar.release (false);
+		horizontalBar = null;
+	}
+	if (verticalBar !is null) {
+		verticalBar.release (false);
+		verticalBar = null;
+	}
+	super.releaseChildren (destroy);
+}
+
+void resizeHandle (int width, int height) {
+	if (fixedHandle !is null) OS.gtk_widget_set_size_request (cast(GtkWidget*)fixedHandle, width, height);
+	OS.gtk_widget_set_size_request (scrolledHandle !is null ? cast(GtkWidget*)scrolledHandle : handle, width, height);
+}
+
+void showWidget () {
+	super.showWidget ();
+	if (scrolledHandle !is null) OS.gtk_widget_show (cast(GtkWidget*)scrolledHandle);
+}
+
+GtkWidget* topHandle () {
+	if (fixedHandle !is null) return fixedHandle;
+	if (scrolledHandle !is null) return cast(GtkWidget*)scrolledHandle;
+	return super.topHandle ();
+}
+
+void updateScrollBarValue (ScrollBar bar) {
+	redrawBackgroundImage ();
+}
+
+int vScrollBarWidth() {
+	if (verticalBar is null) return 0;
+	auto vBarHandle = OS.GTK_SCROLLED_WINDOW_VSCROLLBAR(scrolledHandle);
+	if (vBarHandle is null) return 0;
+	GtkRequisition* requisition = new GtkRequisition();
+	OS.gtk_widget_size_request (cast(GtkWidget*)vBarHandle, requisition);
+	int spacing = OS.GTK_SCROLLED_WINDOW_SCROLLBAR_SPACING(scrolledHandle);
+	return requisition.width + spacing;
+}
+}