bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/Scrollable.java - platform/eclipse.platform.swt - Git at Google

 package org.eclipse.swt.widgets;

 /*
  * Copyright (c) 2000, 2002 IBM Corp.  All rights reserved.
  * This file is made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  */

 import org.eclipse.swt.internal.carbon.*;
 import org.eclipse.swt.*;
 import org.eclipse.swt.graphics.*;

 /**
  * 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 extends Control {
  	int scrolledHandle /* AW , formHandle */;

 	ScrollBar horizontalBar, verticalBar;
 Scrollable () {
 	/* Do nothing */
 }
 /**
  * Constructs a new instance of this class given its parent
  * and a style value describing its behavior and appearance.
  * <p>
  * The style value is either one of the style constants defined in
  * class <code>SWT</code> which is applicable to instances of this
  * class, or must be built by <em>bitwise OR</em>'ing together
  * (that is, using the <code>int</code> "|" operator) two or more
  * of those <code>SWT</code> style constants. The class description
  * lists the style constants that are applicable to the class.
  * Style bits are also inherited from superclasses.
  * </p>
  *
  * @param parent a 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 Scrollable (Composite parent, int style) {
 	super (parent, style);
 }
 /**
  * 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>
  *
  * @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 = getBorderWidth ();
 	int trimX = x - border, trimY = y - border;
 	int trimWidth = width + (border * 2), trimHeight = height + (border * 2);
 	if (horizontalBar != null) {
 		Display display = getDisplay ();
 		trimY -= display.scrolledInsetY;
 		trimHeight += display.scrolledInsetY + display.scrolledMarginY;
 		if (verticalBar == null) {
 			trimX -= display.scrolledInsetX;
 			trimWidth += display.scrolledInsetX * 2;
 			trimHeight -= display.scrolledInsetY * 2;
 		}
 	}
 	if (verticalBar != null) {
 		Display display = getDisplay ();
 		trimX -= display.scrolledInsetX;
 		trimWidth += display.scrolledInsetX + display.scrolledMarginX;
 		if (horizontalBar == null) {
 			trimY -= display.scrolledInsetY;
 			trimHeight += display.scrolledInsetY * 2;
 			trimWidth -= display.scrolledInsetX * 2;
 		}
 	}
 	return new Rectangle (trimX, trimY, trimWidth, trimHeight);
 }
 ScrollBar createScrollBar (int type) {
     return new ScrollBar (this, type);
 }
 ScrollBar createStandardBar (int style) {
 	if (scrolledHandle == 0) return null;
 	ScrollBar bar = new ScrollBar ();
 	bar.parent = this;
 	bar.style = style;
 	bar.state |= HANDLE;
 	System.out.println("Scrollable.createStandardBar: nyi");
     /* AW
 	int [] argList = {OS.XmNhorizontalScrollBar, 0, OS.XmNverticalScrollBar, 0};
 	OS.XtGetValues (scrolledHandle, argList, argList.length / 2);
 	if (style == SWT.H_SCROLL) bar.handle = argList [1];
 	if (style == SWT.V_SCROLL) bar.handle = argList [3];
     */
 	bar.hookEvents ();
 	bar.register ();
 	return bar;
 }
 void createWidget (int index) {
 	super.createWidget (index);
 	if ((style & SWT.H_SCROLL) != 0) horizontalBar = createScrollBar (SWT.H_SCROLL);
 	if ((style & SWT.V_SCROLL) != 0) verticalBar = createScrollBar (SWT.V_SCROLL);
 }
 void deregister () {
 	super.deregister ();
     /* AW
 	if (formHandle != 0) WidgetTable.remove (formHandle);
     */
 	if (scrolledHandle != 0) WidgetTable.remove (scrolledHandle);
 }
 /* AW
 void enableWidget (boolean enabled) {
 	super.enableWidget (enabled);
 	if (formHandle != 0) enableHandle (enabled, formHandle);
 	if (scrolledHandle != 0) {
 		enableHandle (enabled, scrolledHandle);
 		int [] argList = {
 			OS.XmNhorizontalScrollBar, 0,
 			OS.XmNverticalScrollBar, 0,
 		};
 		OS.XtGetValues (scrolledHandle, argList, argList.length / 2);
 		if (argList [1] != 0) enableHandle (enabled, argList [1]);
 		if (argList [3] != 0) enableHandle (enabled, argList [3]);
 	}
 }
 */
 /**
  * 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();
     /* AW
 	int [] argList = {OS.XmNwidth, 0, OS.XmNheight, 0};
 	OS.XtGetValues (handle, argList, argList.length / 2);
 	return new Rectangle (0, 0, argList [1], argList [3]);
     */
 	MacRect bounds= new MacRect();
 	OS.GetControlBounds(handle, bounds.getData());
 	Rectangle r= new Rectangle (0, 0, bounds.getWidth(), bounds.getHeight());
 	/*
 	if (r.isEmpty()) {
 		System.out.println("Scrollable.getClientArea(" + this + "): " + r);
 		//new Exception().printStackTrace();
 	}
 	*/
 	return r;
 }
 /**
  * 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;
 }
 void manageChildren () {
     /* AW
 	if (scrolledHandle != 0) {
 		OS.XtSetMappedWhenManaged (scrolledHandle, false);
 		OS.XtManageChild (scrolledHandle);
 	}
 	if (formHandle != 0) {
 		OS.XtSetMappedWhenManaged (formHandle, false);
 		OS.XtManageChild (formHandle);
 	}
     */
 	super.manageChildren ();
     /* AW
 	if (formHandle != 0) {
 		int [] argList = {OS.XmNborderWidth, 0};
 		OS.XtGetValues (formHandle, argList, argList.length / 2);
 		OS.XtResizeWidget (formHandle, 1, 1, argList [1]);
 		OS.XtSetMappedWhenManaged (formHandle, true);
 	}
 	if (scrolledHandle != 0) {
 		int [] argList = {OS.XmNborderWidth, 0};
 		OS.XtGetValues (scrolledHandle, argList, argList.length / 2);
 		OS.XtResizeWidget (scrolledHandle, 1, 1, argList [1]);
 		OS.XtSetMappedWhenManaged (scrolledHandle, true);
 	}
     */
 }
 /* AW
 void propagateWidget (boolean enabled) {
 	super.propagateWidget (enabled);
 	if (formHandle != 0) propagateHandle (enabled, formHandle);
 	if (scrolledHandle != 0) {
 		propagateHandle (enabled, scrolledHandle);
 		int [] argList = {
 			OS.XmNhorizontalScrollBar, 0,
 			OS.XmNverticalScrollBar, 0,
 		};
 		OS.XtGetValues (scrolledHandle, argList, argList.length / 2);
 		if (argList [1] != 0) propagateHandle (enabled, argList [1]);
 		if (argList [3] != 0) propagateHandle (enabled, argList [3]);
 	}
 }
 */
 void register () {
 	super.register ();
     /* AW
 	if (formHandle != 0) WidgetTable.put (formHandle, this);
     */
 	if (scrolledHandle != 0) WidgetTable.put (scrolledHandle, this);
 }
 void releaseHandle () {
 	super.releaseHandle ();
 	scrolledHandle = /* AW formHandle = */ 0;
 }
 void releaseWidget () {
 	if (horizontalBar != null) {
 		horizontalBar.releaseWidget ();
 		horizontalBar.releaseHandle ();
 	}
 	if (verticalBar != null) {
 		verticalBar.releaseWidget ();
 		verticalBar.releaseHandle ();
 	}
 	horizontalBar = verticalBar = null;
 	super.releaseWidget ();
 }
 /* AW
 void setBackgroundPixel (int pixel) {
 	super.setBackgroundPixel (pixel);
 	if (scrolledHandle != 0) {
 		int [] argList1 = {
 			OS.XmNhorizontalScrollBar, 0,
 			OS.XmNverticalScrollBar, 0,
 		};
 		OS.XtGetValues (scrolledHandle, argList1, argList1.length / 2);
 		if (argList1 [1] != 0) OS.XmChangeColor (argList1 [1], pixel);
 		if (argList1 [3] != 0) OS.XmChangeColor (argList1 [3], pixel);
 	}
 }
 */
 int topHandle () {
 	if (scrolledHandle != 0) return scrolledHandle;
     /* AW
 	if (formHandle != 0) return formHandle;
     */
 	return handle;
 }

 ////////////////////////////
 // Mac Stuff
 ////////////////////////////

 	int fHScrollBar;
 	int fVScrollBar;

 	int createScrollView(int parentControlHandle, int style) {

 		Display display= getDisplay();

 		if (OS.IsValidControlHandle(parentControlHandle)) {
 		} else if (OS.IsValidWindowPtr(parentControlHandle)) {
 			int[] root= new int[1];
 			OS.CreateRootControl(parentControlHandle, root);
 			parentControlHandle= root[0];
 		} else
 			System.out.println("createScrollView: don't know");

 		int controlHandle = MacUtil.createDrawingArea(parentControlHandle, 0, 0, 0);

 		OS.InstallEventHandler(OS.GetControlEventTarget(controlHandle), display.fControlProc,
 			new int[] {
 				OS.kEventClassControl, OS.kEventControlBoundsChanged
 			},
 			controlHandle
 		);

 		if ((style & SWT.H_SCROLL) != 0) {
 			int hs= MacUtil.newControl(controlHandle, (short)0, (short)0, (short)100, OS.kControlScrollBarLiveProc);
 			OS.SetControlAction(hs, display.fControlActionProc);
 			fHScrollBar= hs;
 		}

 		if ((style & SWT.V_SCROLL) != 0) {
 			int vs= MacUtil.newControl(controlHandle, (short)0, (short)0, (short)100, OS.kControlScrollBarLiveProc);
 			OS.SetControlAction(vs, display.fControlActionProc);
 			fVScrollBar= vs;
 		}

 		return controlHandle;
 	}

 	/**
 	 * Overridden from Control.
 	 * x and y are relative to window!
 	 */
 	void handleResize(int scrolledHandle, int x, int y, int w, int h) {
 		super.handleResize(scrolledHandle, x, y, w, h);
 		relayout123(scrolledHandle);
 	}

 	public void handleResizeScrollView(int scrolledHandle) {
 		/*
 		System.out.println("Scrollable.handleResizeScrollView");
 		if (scrolledHandle != 0)
 			relayout123(scrolledHandle);
 		*/
 	}

 	void relayout123(int hndl) {

 		MacRect bounds= new MacRect();
 		OS.GetControlBounds(hndl, bounds.getData());

 		boolean visible= OS.IsControlVisible(hndl);

 		int x= bounds.getX();
 		int y= bounds.getY();
 		int w= bounds.getWidth();
 		int h= bounds.getHeight();

 		int s= 15;
 		int ww= w;
 		int hh= h;
 		int style= getStyle();

 		if (ww < 0 || hh < 0) {
 			System.out.println("******* Scrollable.relayout123: " + ww + " " + hh);
 			return;
 		}

 		ScrollBar hsb= null;
 		if ((style & SWT.H_SCROLL) != 0) {
 			hsb= getHorizontalBar();
 			if (hsb != null) {
 				if (visible && !OS.IsControlVisible(hsb.handle))
 					;
 				else
 					hh-= s;
 			}
 		}

 		ScrollBar vsb= null;
 		if ((style & SWT.V_SCROLL) != 0) {
 			vsb= getVerticalBar();
 			if (vsb != null) {
 				if (visible && !OS.IsControlVisible(vsb.handle))
 					;
 				else
 					ww-= s;
 			}
 		}

 		if (hsb != null)
 			OS.SetControlBounds(hsb.handle, new MacRect(x, y+h-s, ww, s).getData());

 		if (vsb != null)
 			OS.SetControlBounds(vsb.handle, new MacRect(x+w-s, y, s, hh).getData());

 		OS.SetControlBounds(handle, new MacRect(x, y, ww, hh).getData());

 		if (ww != w && hh != h)
 			OS.InvalWindowRect(OS.GetControlOwner(handle), new MacRect(x+w-s, y+h-s, s, s).getData());
 	}
 }
	package org.eclipse.swt.widgets;

	/*
	* Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
	* This file is made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*/

	import org.eclipse.swt.internal.carbon.*;
	import org.eclipse.swt.*;
	import org.eclipse.swt.graphics.*;

	/**
	* 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 extends Control {
	int scrolledHandle /* AW , formHandle */;

	ScrollBar horizontalBar, verticalBar;
	Scrollable () {
	/* Do nothing */
	}
	/**
	* Constructs a new instance of this class given its parent
	* and a style value describing its behavior and appearance.
	* <p>
	* The style value is either one of the style constants defined in
	* class <code>SWT</code> which is applicable to instances of this
	* class, or must be built by <em>bitwise OR</em>'ing together
	* (that is, using the <code>int</code> "\|" operator) two or more
	* of those <code>SWT</code> style constants. The class description
	* lists the style constants that are applicable to the class.
	* Style bits are also inherited from superclasses.
	* </p>
	*
	* @param parent a 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 Scrollable (Composite parent, int style) {
	super (parent, style);
	}
	/**
	* 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>
	*
	* @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 = getBorderWidth ();
	int trimX = x - border, trimY = y - border;
	int trimWidth = width + (border * 2), trimHeight = height + (border * 2);
	if (horizontalBar != null) {
	Display display = getDisplay ();
	trimY -= display.scrolledInsetY;
	trimHeight += display.scrolledInsetY + display.scrolledMarginY;
	if (verticalBar == null) {
	trimX -= display.scrolledInsetX;
	trimWidth += display.scrolledInsetX * 2;
	trimHeight -= display.scrolledInsetY * 2;
	}
	}
	if (verticalBar != null) {
	Display display = getDisplay ();
	trimX -= display.scrolledInsetX;
	trimWidth += display.scrolledInsetX + display.scrolledMarginX;
	if (horizontalBar == null) {
	trimY -= display.scrolledInsetY;
	trimHeight += display.scrolledInsetY * 2;
	trimWidth -= display.scrolledInsetX * 2;
	}
	}
	return new Rectangle (trimX, trimY, trimWidth, trimHeight);
	}
	ScrollBar createScrollBar (int type) {
	return new ScrollBar (this, type);
	}
	ScrollBar createStandardBar (int style) {
	if (scrolledHandle == 0) return null;
	ScrollBar bar = new ScrollBar ();
	bar.parent = this;
	bar.style = style;
	bar.state \|= HANDLE;
	System.out.println("Scrollable.createStandardBar: nyi");
	/* AW
	int [] argList = {OS.XmNhorizontalScrollBar, 0, OS.XmNverticalScrollBar, 0};
	OS.XtGetValues (scrolledHandle, argList, argList.length / 2);
	if (style == SWT.H_SCROLL) bar.handle = argList [1];
	if (style == SWT.V_SCROLL) bar.handle = argList [3];
	*/
	bar.hookEvents ();
	bar.register ();
	return bar;
	}
	void createWidget (int index) {
	super.createWidget (index);
	if ((style & SWT.H_SCROLL) != 0) horizontalBar = createScrollBar (SWT.H_SCROLL);
	if ((style & SWT.V_SCROLL) != 0) verticalBar = createScrollBar (SWT.V_SCROLL);
	}
	void deregister () {
	super.deregister ();
	/* AW
	if (formHandle != 0) WidgetTable.remove (formHandle);
	*/
	if (scrolledHandle != 0) WidgetTable.remove (scrolledHandle);
	}
	/* AW
	void enableWidget (boolean enabled) {
	super.enableWidget (enabled);
	if (formHandle != 0) enableHandle (enabled, formHandle);
	if (scrolledHandle != 0) {
	enableHandle (enabled, scrolledHandle);
	int [] argList = {
	OS.XmNhorizontalScrollBar, 0,
	OS.XmNverticalScrollBar, 0,
	};
	OS.XtGetValues (scrolledHandle, argList, argList.length / 2);
	if (argList [1] != 0) enableHandle (enabled, argList [1]);
	if (argList [3] != 0) enableHandle (enabled, argList [3]);
	}
	}
	*/
	/**
	* 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();
	/* AW
	int [] argList = {OS.XmNwidth, 0, OS.XmNheight, 0};
	OS.XtGetValues (handle, argList, argList.length / 2);
	return new Rectangle (0, 0, argList [1], argList [3]);
	*/
	MacRect bounds= new MacRect();
	OS.GetControlBounds(handle, bounds.getData());
	Rectangle r= new Rectangle (0, 0, bounds.getWidth(), bounds.getHeight());
	/*
	if (r.isEmpty()) {
	System.out.println("Scrollable.getClientArea(" + this + "): " + r);
	//new Exception().printStackTrace();
	}
	*/
	return r;
	}
	/**
	* 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;
	}
	void manageChildren () {
	/* AW
	if (scrolledHandle != 0) {
	OS.XtSetMappedWhenManaged (scrolledHandle, false);
	OS.XtManageChild (scrolledHandle);
	}
	if (formHandle != 0) {
	OS.XtSetMappedWhenManaged (formHandle, false);
	OS.XtManageChild (formHandle);
	}
	*/
	super.manageChildren ();
	/* AW
	if (formHandle != 0) {
	int [] argList = {OS.XmNborderWidth, 0};
	OS.XtGetValues (formHandle, argList, argList.length / 2);
	OS.XtResizeWidget (formHandle, 1, 1, argList [1]);
	OS.XtSetMappedWhenManaged (formHandle, true);
	}
	if (scrolledHandle != 0) {
	int [] argList = {OS.XmNborderWidth, 0};
	OS.XtGetValues (scrolledHandle, argList, argList.length / 2);
	OS.XtResizeWidget (scrolledHandle, 1, 1, argList [1]);
	OS.XtSetMappedWhenManaged (scrolledHandle, true);
	}
	*/
	}
	/* AW
	void propagateWidget (boolean enabled) {
	super.propagateWidget (enabled);
	if (formHandle != 0) propagateHandle (enabled, formHandle);
	if (scrolledHandle != 0) {
	propagateHandle (enabled, scrolledHandle);
	int [] argList = {
	OS.XmNhorizontalScrollBar, 0,
	OS.XmNverticalScrollBar, 0,
	};
	OS.XtGetValues (scrolledHandle, argList, argList.length / 2);
	if (argList [1] != 0) propagateHandle (enabled, argList [1]);
	if (argList [3] != 0) propagateHandle (enabled, argList [3]);
	}
	}
	*/
	void register () {
	super.register ();
	/* AW
	if (formHandle != 0) WidgetTable.put (formHandle, this);
	*/
	if (scrolledHandle != 0) WidgetTable.put (scrolledHandle, this);
	}
	void releaseHandle () {
	super.releaseHandle ();
	scrolledHandle = /* AW formHandle = */ 0;
	}
	void releaseWidget () {
	if (horizontalBar != null) {
	horizontalBar.releaseWidget ();
	horizontalBar.releaseHandle ();
	}
	if (verticalBar != null) {
	verticalBar.releaseWidget ();
	verticalBar.releaseHandle ();
	}
	horizontalBar = verticalBar = null;
	super.releaseWidget ();
	}
	/* AW
	void setBackgroundPixel (int pixel) {
	super.setBackgroundPixel (pixel);
	if (scrolledHandle != 0) {
	int [] argList1 = {
	OS.XmNhorizontalScrollBar, 0,
	OS.XmNverticalScrollBar, 0,
	};
	OS.XtGetValues (scrolledHandle, argList1, argList1.length / 2);
	if (argList1 [1] != 0) OS.XmChangeColor (argList1 [1], pixel);
	if (argList1 [3] != 0) OS.XmChangeColor (argList1 [3], pixel);
	}
	}
	*/
	int topHandle () {
	if (scrolledHandle != 0) return scrolledHandle;
	/* AW
	if (formHandle != 0) return formHandle;
	*/
	return handle;
	}

	////////////////////////////
	// Mac Stuff
	////////////////////////////

	int fHScrollBar;
	int fVScrollBar;

	int createScrollView(int parentControlHandle, int style) {

	Display display= getDisplay();

	if (OS.IsValidControlHandle(parentControlHandle)) {
	} else if (OS.IsValidWindowPtr(parentControlHandle)) {
	int[] root= new int[1];
	OS.CreateRootControl(parentControlHandle, root);
	parentControlHandle= root[0];
	} else
	System.out.println("createScrollView: don't know");

	int controlHandle = MacUtil.createDrawingArea(parentControlHandle, 0, 0, 0);

	OS.InstallEventHandler(OS.GetControlEventTarget(controlHandle), display.fControlProc,
	new int[] {
	OS.kEventClassControl, OS.kEventControlBoundsChanged
	},
	controlHandle
	);

	if ((style & SWT.H_SCROLL) != 0) {
	int hs= MacUtil.newControl(controlHandle, (short)0, (short)0, (short)100, OS.kControlScrollBarLiveProc);
	OS.SetControlAction(hs, display.fControlActionProc);
	fHScrollBar= hs;
	}

	if ((style & SWT.V_SCROLL) != 0) {
	int vs= MacUtil.newControl(controlHandle, (short)0, (short)0, (short)100, OS.kControlScrollBarLiveProc);
	OS.SetControlAction(vs, display.fControlActionProc);
	fVScrollBar= vs;
	}

	return controlHandle;
	}

	/**
	* Overridden from Control.
	* x and y are relative to window!
	*/
	void handleResize(int scrolledHandle, int x, int y, int w, int h) {
	super.handleResize(scrolledHandle, x, y, w, h);
	relayout123(scrolledHandle);
	}

	public void handleResizeScrollView(int scrolledHandle) {
	/*
	System.out.println("Scrollable.handleResizeScrollView");
	if (scrolledHandle != 0)
	relayout123(scrolledHandle);
	*/
	}

	void relayout123(int hndl) {

	MacRect bounds= new MacRect();
	OS.GetControlBounds(hndl, bounds.getData());

	boolean visible= OS.IsControlVisible(hndl);

	int x= bounds.getX();
	int y= bounds.getY();
	int w= bounds.getWidth();
	int h= bounds.getHeight();

	int s= 15;
	int ww= w;
	int hh= h;
	int style= getStyle();

	if (ww < 0 \|\| hh < 0) {
	System.out.println("******* Scrollable.relayout123: " + ww + " " + hh);
	return;
	}

	ScrollBar hsb= null;
	if ((style & SWT.H_SCROLL) != 0) {
	hsb= getHorizontalBar();
	if (hsb != null) {
	if (visible && !OS.IsControlVisible(hsb.handle))
	;
	else
	hh-= s;
	}
	}

	ScrollBar vsb= null;
	if ((style & SWT.V_SCROLL) != 0) {
	vsb= getVerticalBar();
	if (vsb != null) {
	if (visible && !OS.IsControlVisible(vsb.handle))
	;
	else
	ww-= s;
	}
	}

	if (hsb != null)
	OS.SetControlBounds(hsb.handle, new MacRect(x, y+h-s, ww, s).getData());

	if (vsb != null)
	OS.SetControlBounds(vsb.handle, new MacRect(x+w-s, y, s, hh).getData());

	OS.SetControlBounds(handle, new MacRect(x, y, ww, hh).getData());

	if (ww != w && hh != h)
	OS.InvalWindowRect(OS.GetControlOwner(handle), new MacRect(x+w-s, y+h-s, s, s).getData());
	}
	}