1 files changed, 828 insertions, 828 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ToolItem.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ToolItem.java
index 38602b3a35..be3712770d 100755
--- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ToolItem.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ToolItem.java
@@ -1,831 +1,831 @@
-package org.eclipse.swt.widgets;
-
-/*
+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.win32.*;
-import org.eclipse.swt.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.events.*;
-
-/**
- * Instances of this class represent a selectable user interface object
- * that represents a button in a tool bar.
- * <dl>
- * <dt><b>Styles:</b></dt>
- * <dd>PUSH, CHECK, RADIO, SEPARATOR, DROP_DOWN</dd>
- * <dt><b>Events:</b></dt>
- * <dd>Selection</dd>
- * </dl>
- * <p>
- * Note: Only one of the styles CHECK, PUSH, RADIO, SEPARATOR and DROP_DOWN 
- * may be specified.
- * </p><p>
- * IMPORTANT: This class is <em>not</em> intended to be subclassed.
- * </p>
- */
-public class ToolItem extends Item {
-	ToolBar parent;
-	Control control;
-	String toolTipText;
-	Image disabledImage, hotImage;
-	Image disabledImage2;
-	int id;
-
-/**
- * Constructs a new instance of this class given its parent
- * (which must be a <code>ToolBar</code>) and a style value
- * describing its behavior and appearance. The item is added
- * to the end of the items maintained by its parent.
- * <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#PUSH
- * @see SWT#CHECK
- * @see SWT#RADIO
- * @see SWT#SEPARATOR
- * @see SWT#DROP_DOWN
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public ToolItem (ToolBar parent, int style) {
-	super (parent, checkStyle (style));
-	this.parent = parent;
-	parent.createItem (this, parent.getItemCount ());
-}
-
-/**
- * Constructs a new instance of this class given its parent
- * (which must be a <code>ToolBar</code>), a style value
- * describing its behavior and appearance, and the index
- * at which to place it in the items maintained by its parent.
- * <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
- * @param index the index to store the receiver in its parent
- *
- * @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#PUSH
- * @see SWT#CHECK
- * @see SWT#RADIO
- * @see SWT#SEPARATOR
- * @see SWT#DROP_DOWN
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public ToolItem (ToolBar parent, int style, int index) {
-	super (parent, checkStyle (style));
-	this.parent = parent;
-	parent.createItem (this, index);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the control is selected, by sending
- * it one of the messages defined in the <code>SelectionListener</code>
- * interface.
- * <p>
- * When <code>widgetSelected</code> is called when the mouse is over the arrow portion of a drop-down tool,
- * the event object detail field contains the value <code>SWT.ARROW</code>.
- * <code>widgetDefaultSelected</code> is not called.
- * </p>
- *
- * @param listener the listener which should 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 #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.PUSH, SWT.CHECK, SWT.RADIO, SWT.SEPARATOR, SWT.DROP_DOWN, 0);
-}
-
-protected void checkSubclass () {
-	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
-}
-
-void click (boolean dropDown) {	
-	/*
-	* In order to emulate all the processing that
-	* happens when a mnemonic key is pressed, fake
-	* a mouse press and release.  This will ensure
-	* that radio and pull down items are handled
-	* properly.
-	*/
-	int hwnd = parent.handle;
-	if (OS.GetKeyState (OS.VK_LBUTTON) < 0) return;
-	int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0);
-	RECT rect = new RECT ();
-	OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect);
-	int lParam = (dropDown ? rect.right - 1 : rect.left) | (rect.top << 16);
-	int hotIndex = OS.SendMessage (hwnd, OS.TB_GETHOTITEM, 0, 0);
-	OS.SendMessage (hwnd, OS.WM_LBUTTONDOWN, 0, lParam);
-	OS.SendMessage (hwnd, OS.WM_LBUTTONUP, 0, lParam);
-	if (hotIndex != -1) {
-		OS.SendMessage (hwnd, OS.TB_SETHOTITEM, hotIndex, 0);
-	}
-}
-
-Image createDisabledImage (Image image, Color color) {
-	Display display = getDisplay ();
-	if (OS.IsWinCE) {
-		return new Image (display, image, SWT.IMAGE_DISABLE);
-	}
-	Rectangle rect = image.getBounds ();
-	Image disabled = new Image (display, rect);
-	GC gc = new GC (disabled);
-	gc.setBackground (color);
-	gc.fillRectangle (rect);
-	int hDC = gc.handle;
-	int hImage = image.handle;
-	int fuFlags = OS.DSS_DISABLED;
-	switch (image.type) {
-		case SWT.BITMAP: fuFlags |= OS.DST_BITMAP; break;
-		case SWT.ICON: fuFlags |= OS.DST_ICON; break;
-	}
-	OS.DrawState (hDC, 0, 0, hImage, 0, 0, 0, rect.width, rect.height, fuFlags);
-	gc.dispose ();
-	return disabled;
-}
-
-/**
- * Returns a rectangle describing the receiver's size and location
- * relative to its parent.
- *
- * @return the receiver's bounding rectangle
- *
- * @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 Rectangle getBounds () {
-	checkWidget();
-	int hwnd = parent.handle;
-	int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0);
-	RECT rect = new RECT ();
-	OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect);
-	int width = rect.right - rect.left;
-	int height = rect.bottom - rect.top;
-	return new Rectangle (rect.left, rect.top, width, height);
-}
-
-/**
- * Returns the control that is used to fill the bounds of
- * the item when the items is a <code>SEPARATOR</code>.
- *
- * @return the control
- *
- * @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 Control getControl () {
-	checkWidget();
-	return control;
-}
-
-/**
- * Returns the receiver's disabled image if it has one, or null
- * if it does not.
- * <p>
- * The disabled image is displayed when the receiver is disabled.
- * </p>
- *
- * @return the receiver's disabled image
- *
- * @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 Image getDisabledImage () {
-	checkWidget();
-	return disabledImage;
-}
-
-public Display getDisplay () {
-	ToolBar parent = this.parent;
-	if (parent == null) error (SWT.ERROR_WIDGET_DISPOSED);
-	return parent.getDisplay ();
-}
-
-/**
- * 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();
-	int hwnd = parent.handle;
-	int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0);
-	return (fsState & OS.TBSTATE_ENABLED) != 0;
-}
-
-/**
- * Returns the receiver's hot image if it has one, or null
- * if it does not.
- * <p>
- * The hot image is displayed when the mouse enters the receiver.
- * </p>
- *
- * @return the receiver's hot image
- *
- * @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 Image getHotImage () {
-	checkWidget();
-	return hotImage;
-}
-
-/**
- * Returns the receiver's parent, which must be a <code>ToolBar</code>.
- *
- * @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 ToolBar getParent () {
-	checkWidget();
-	return parent;
-}
-
-/**
- * Returns <code>true</code> if the receiver is selected,
- * and false otherwise.
- * <p>
- * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>,
- * it is selected when it is checked (which some platforms draw as a
- * pushed in button). If the receiver is of any other type, this method
- * returns false.
- * </p>
- *
- * @return the selection 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 getSelection () {
-	checkWidget();
-	if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return false;
-	int hwnd = parent.handle;
-	int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0);
-	return (fsState & OS.TBSTATE_CHECKED) != 0;
-}
-
-/**
- * Returns the receiver's tool tip text, or null if it has not been set.
- *
- * @return the receiver's tool tip text
- *
- * @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 String getToolTipText () {
-	checkWidget();
-	return toolTipText;
-}
-
-/**
- * Gets the width of the receiver.
- *
- * @return the width
- *
- * @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 getWidth () {
-	checkWidget();
-	int hwnd = parent.handle;
-	int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0);
-	RECT rect = new RECT ();
-	OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect);
-	return rect.right - rect.left;
-}
-
-/**
- * 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 () && parent.isEnabled ();
-}
-
-void releaseChild () {
-	super.releaseChild ();
-	parent.destroyItem (this);
-}
-
-void releaseWidget () {
-	super.releaseWidget ();
-	parent = null;
-	control = null;
-	toolTipText = null;
-	disabledImage = hotImage = null;
-	if (disabledImage2 != null) disabledImage2.dispose ();
-	disabledImage2 = null;
-}
-
-void releaseImages () {
-	TBBUTTONINFO info = new TBBUTTONINFO ();
-	info.cbSize = TBBUTTONINFO.sizeof;
-	info.dwMask = OS.TBIF_IMAGE | OS.TBIF_STYLE;
-	int hwnd = parent.handle;
-	OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info);
-	/*
-	* Feature in Windows.  For some reason, a tool item that has
-	* the style BTNS_SEP does not return I_IMAGENONE when queried
-	* for an image index, despite the fact that no attempt has been
-	* made to assign an image to the item.  As a result, operations
-	* on an image list that use the wrong index cause random results.	
-	* The fix is to ensure that the tool item is not a separator
-	* before using the image index.  Since separators cannot have
-	* an image and one is never assigned, this is not a problem.
-	*/
-	if ((info.fsStyle & OS.BTNS_SEP) == 0 && info.iImage != OS.I_IMAGENONE) {
-		ImageList imageList = parent.getImageList ();
-		ImageList hotImageList = parent.getHotImageList ();
-		ImageList disabledImageList = parent.getDisabledImageList();
-		if (imageList != null) imageList.put (info.iImage, null);
-		if (hotImageList != null) hotImageList.put (info.iImage, null);
-		if (disabledImageList != null) disabledImageList.put (info.iImage, null);
-	}
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the control is selected.
- *
- * @param listener the listener which should 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);	
-}
-
-void resizeControl () {
-	if (control != null && !control.isDisposed ()) {
-		/*
-		* Set the size and location of the control
-		* separately to minimize flashing in the
-		* case where the control does not resize
-		* to the size that was requested.  This
-		* case can occur when the control is a
-		* combo box.
-		*/
-		Rectangle itemRect = getBounds ();
-		control.setSize (itemRect.width, itemRect.height);
-		Rectangle rect = control.getBounds ();
-		rect.x = itemRect.x + (itemRect.width - rect.width) / 2;
-		rect.y = itemRect.y + (itemRect.height - rect.height) / 2;
-		control.setLocation (rect.x, rect.y);
-	}
-}
-
-void selectRadio () {
-	int index = 0;
-	ToolItem [] items = parent.getItems ();
-	while (index < items.length && items [index] != this) index++;
-	int i = index - 1;
-	while (i >= 0 && items [i].setRadioSelection (false)) --i;
-	int j = index + 1;
-	while (j < items.length && items [j].setRadioSelection (false)) j++;
-	setSelection (true);
-}
-
-/**
- * Sets the control that is used to fill the bounds of
- * the item when the items is a <code>SEPARATOR</code>.
- *
- * @param control the new control
- *
- * @exception IllegalArgumentException <ul>
- *    <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> 
- *    <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</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>
- */
-public void setControl (Control control) {
-	checkWidget();
-	if (control != null) {
-		if (control.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
-		if (control.parent != parent) error (SWT.ERROR_INVALID_PARENT);
-	}
-	if ((style & SWT.SEPARATOR) == 0) return;
-	this.control = control;
-	resizeControl ();
-}
-
-/**
- * Enables the receiver if the argument is <code>true</code>,
- * and disables it otherwise.
- * <p>
- * A disabled control is typically
- * not selectable from the user interface and draws with an
- * inactive or "grayed" look.
- * </p>
- *
- * @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();
-	int hwnd = parent.handle;
-	int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0);
-	fsState &= ~OS.TBSTATE_ENABLED;
-	if (enabled) fsState |= OS.TBSTATE_ENABLED;
-	OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState);
-	if (image != null) updateImages ();
-}
-
-/**
- * Sets the receiver's disabled image to the argument, which may be
- * null indicating that no disabled image should be displayed.
- * <p>
- * The disbled image is displayed when the receiver is disabled.
- * </p>
- *
- * @param image the disabled image to display on the receiver (may be null)
- *
- * @exception IllegalArgumentException <ul>
- *    <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</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>
- */
-public void setDisabledImage (Image image) {
-	checkWidget();
-	if ((style & SWT.SEPARATOR) != 0) return;
-	if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
-	disabledImage = image;
-	updateImages ();
-}
-
-/**
- * Sets the receiver's hot image to the argument, which may be
- * null indicating that no hot image should be displayed.
- * <p>
- * The hot image is displayed when the mouse enters the receiver.
- * </p>
- *
- * @param image the hot image to display on the receiver (may be null)
- *
- * @exception IllegalArgumentException <ul>
- *    <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</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>
- */
-public void setHotImage (Image image) {
-	checkWidget();
-	if ((style & SWT.SEPARATOR) != 0) return;
-	if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
-	hotImage = image;
-	updateImages ();
-}
-
-public void setImage (Image image) {
-	checkWidget();
-	if ((style & SWT.SEPARATOR) != 0) return;
-	if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
-	super.setImage (image);
-	updateImages ();
-}
-
-boolean setRadioSelection (boolean value) {
-	if ((style & SWT.RADIO) == 0) return false;
-	if (getSelection () != value) {
-		setSelection (value);
-		postEvent (SWT.Selection);
-	}
-	return true;
-}
-
-/**
- * Sets the selection state of the receiver.
- * <p>
- * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>,
- * it is selected when it is checked (which some platforms draw as a
- * pushed in button).
- * </p>
- *
- * @param selected the new selection 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 setSelection (boolean selected) {
-	checkWidget();
-	if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return;
-	int hwnd = parent.handle;
-	int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0);
-	fsState &= ~OS.TBSTATE_CHECKED;
-	if (selected) fsState |= OS.TBSTATE_CHECKED;
-	OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState);
-}
-/**
- * Sets the receiver's text. The string may include
- * the mnemonic character.
- * </p>
- * <p>
- * Mnemonics are indicated by an '&amp' that causes the next
- * character to be the mnemonic.  When the user presses a
- * key sequence that matches the mnemonic, a selection
- * event occurs. On most platforms, the mnemonic appears
- * underlined but may be emphasised in a platform specific
- * manner.  The mnemonic indicator character '&amp' can be
- * escaped by doubling it in the string, causing a single
- *'&amp' to be displayed.
- * </p>
- * 
- * @param string the new text
- *
- * @exception IllegalArgumentException <ul>
- *    <li>ERROR_NULL_ARGUMENT - if the text 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>
- */
-public void setText (String string) {
-	checkWidget();
-	if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
-	if ((style & SWT.SEPARATOR) != 0) return;
-	super.setText (string);
-	int hwnd = parent.handle;
-	int hHeap = OS.GetProcessHeap ();
-	TCHAR buffer = new TCHAR (parent.getCodePage (), string, true);
-	int byteCount = buffer.length () * TCHAR.sizeof;
-	int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
-	OS.MoveMemory (pszText, buffer, byteCount); 
-	TBBUTTONINFO info = new TBBUTTONINFO ();
-	info.cbSize = TBBUTTONINFO.sizeof;
-	info.dwMask = OS.TBIF_TEXT | OS.TBIF_STYLE;
-	info.pszText = pszText;
-	info.fsStyle = (byte) (widgetStyle () | OS.BTNS_AUTOSIZE);
-	OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info);
-	OS.HeapFree (hHeap, 0, pszText);
-	
-	/*
-	* Bug in Windows.  For some reason, when the font is set
-	* before any tool item has text, the tool items resize to
-	* a very small size.  Also, a tool item will only show text
-	* when text has already been set on one item and then a new
-	* item is created.  The fix is to use WM_SETFONT to force
-	* the tool bar to redraw and layout.  [1G0G7TV, 1G0FUJ5]
-	*/
-	int hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0);
-	OS.SendMessage (hwnd, OS.WM_SETFONT, hFont, 0);
-	
-	parent.layoutItems ();
-}
-
-/**
- * Sets the receiver's tool tip text to the argument, which
- * may be null indicating that no tool tip text should be shown.
- *
- * @param string the new tool tip text (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 void setToolTipText (String string) {
-	checkWidget();
-	toolTipText = string;
-}
-
-/**
- * Sets the width of the receiver.
- *
- * @param width the new width
- *
- * @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 setWidth (int width) {
-	checkWidget();
-	if ((style & SWT.SEPARATOR) == 0) return;
-	if (width < 0) return;
-	int hwnd = parent.handle;
-	TBBUTTONINFO info = new TBBUTTONINFO ();
-	info.cbSize = TBBUTTONINFO.sizeof;
-	info.dwMask = OS.TBIF_SIZE;
-	info.cx = (short) width;
-	OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info);
-	parent.layoutItems ();
-}
-
-void updateImages () {
-	int hwnd = parent.handle;
-	TBBUTTONINFO info = new TBBUTTONINFO ();
-	info.cbSize = TBBUTTONINFO.sizeof;
-	info.dwMask = OS.TBIF_IMAGE;
-	OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info);
-	if (info.iImage == OS.I_IMAGENONE && image == null) return;
-	ImageList imageList = parent.getImageList ();
-	ImageList hotImageList = parent.getHotImageList ();
-	ImageList disabledImageList = parent.getDisabledImageList();
-	if (info.iImage == OS.I_IMAGENONE) {
-		Display display = getDisplay ();
-		Rectangle bounds = image.getBounds ();
-		Point size = new Point (bounds.width, bounds.height);
-		if (imageList == null) imageList = display.getToolImageList (size);
-		info.iImage = imageList.add (image);
-		parent.setImageList (imageList);
-		if (disabledImageList == null) disabledImageList = display.getToolDisabledImageList (size);
-		Image disabled = disabledImage;
-		if (disabledImage == null) {
-			if (disabledImage2 != null) disabledImage2.dispose ();
-			disabledImage2 = null;
-			disabled = image;
-			if (!getEnabled ()) {
-				Color color = parent.getBackground ();
-				disabled = disabledImage2 = createDisabledImage (image, color);
-			}
-		}
-		disabledImageList.add (disabled);
-		parent.setDisabledImageList (disabledImageList);
-//		if ((parent.style & SWT.FLAT) != 0) {
-			if (hotImageList == null) hotImageList = display.getToolHotImageList (size);
-			hotImageList.add (hotImage != null ? hotImage : image);
-			parent.setHotImageList (hotImageList);
-//		}
-	} else {
-		if (imageList != null) imageList.put (info.iImage, image);
-		if (disabledImageList != null) {
-			Image disabled = null;
-			if (image != null) {
-				if (disabledImage2 != null) disabledImage2.dispose ();
-				disabledImage2 = null;
-				disabled = disabledImage;
-				if (disabledImage == null) {
-					disabled = image;
-					if (!getEnabled ()) {
-						Color color = parent.getBackground ();
-						disabled = disabledImage2 = createDisabledImage (image, color);
-					}
-				}
-			}
-			disabledImageList.put (info.iImage, disabled);
-		}
-		if (hotImageList != null) {
-			Image hot = null;
-			if (image != null) hot = hotImage != null ? hotImage : image;
-			hotImageList.put (info.iImage, hot);
-		}
-		if (image == null) info.iImage = OS.I_IMAGENONE;
-	}
-	OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info);
-	
-	parent.layoutItems ();
-}
-
-int widgetStyle () {
-	if ((style & SWT.DROP_DOWN) != 0) return OS.BTNS_DROPDOWN;
-	if ((style & SWT.PUSH) != 0) return OS.BTNS_BUTTON;
-	if ((style & SWT.CHECK) != 0) return OS.BTNS_CHECK;
-	/*
-	* This code is intentionally commented.  In order to
-	* consistently support radio tool items across platforms,
-	* the platform radio behavior is not used.
-	*/
-//	if ((style & SWT.RADIO) != 0) return OS.BTNS_CHECKGROUP;
-	if ((style & SWT.RADIO) != 0) return OS.BTNS_CHECK;
-	if ((style & SWT.SEPARATOR) != 0) return OS.BTNS_SEP;
-	return OS.BTNS_BUTTON;
-}
-
-LRESULT wmCommandChild (int wParam, int lParam) {
-	if ((style & SWT.RADIO) != 0) {
-		if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) {
-			selectRadio ();
-		}
-	}
-	Event event = new Event ();
-	setInputState (event, SWT.Selection);
-	postEvent (SWT.Selection, event);
-	return null;
-}
-
-}
+ * http://www.eclipse.org/legal/cpl-v10.html
+ */
+ 
+import org.eclipse.swt.internal.win32.*;
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.events.*;
+
+/**
+ * Instances of this class represent a selectable user interface object
+ * that represents a button in a tool bar.
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>PUSH, CHECK, RADIO, SEPARATOR, DROP_DOWN</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>Selection</dd>
+ * </dl>
+ * <p>
+ * Note: Only one of the styles CHECK, PUSH, RADIO, SEPARATOR and DROP_DOWN 
+ * may be specified.
+ * </p><p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ */
+public class ToolItem extends Item {
+	ToolBar parent;
+	Control control;
+	String toolTipText;
+	Image disabledImage, hotImage;
+	Image disabledImage2;
+	int id;
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>ToolBar</code>) and a style value
+ * describing its behavior and appearance. The item is added
+ * to the end of the items maintained by its parent.
+ * <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#PUSH
+ * @see SWT#CHECK
+ * @see SWT#RADIO
+ * @see SWT#SEPARATOR
+ * @see SWT#DROP_DOWN
+ * @see Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public ToolItem (ToolBar parent, int style) {
+	super (parent, checkStyle (style));
+	this.parent = parent;
+	parent.createItem (this, parent.getItemCount ());
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>ToolBar</code>), a style value
+ * describing its behavior and appearance, and the index
+ * at which to place it in the items maintained by its parent.
+ * <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
+ * @param index the index to store the receiver in its parent
+ *
+ * @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#PUSH
+ * @see SWT#CHECK
+ * @see SWT#RADIO
+ * @see SWT#SEPARATOR
+ * @see SWT#DROP_DOWN
+ * @see Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public ToolItem (ToolBar parent, int style, int index) {
+	super (parent, checkStyle (style));
+	this.parent = parent;
+	parent.createItem (this, index);
+}
+
+/**
+ * Adds the listener to the collection of listeners who will
+ * be notified when the control is selected, by sending
+ * it one of the messages defined in the <code>SelectionListener</code>
+ * interface.
+ * <p>
+ * When <code>widgetSelected</code> is called when the mouse is over the arrow portion of a drop-down tool,
+ * the event object detail field contains the value <code>SWT.ARROW</code>.
+ * <code>widgetDefaultSelected</code> is not called.
+ * </p>
+ *
+ * @param listener the listener which should 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 #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.PUSH, SWT.CHECK, SWT.RADIO, SWT.SEPARATOR, SWT.DROP_DOWN, 0);
+}
+
+protected void checkSubclass () {
+	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
+}
+
+void click (boolean dropDown) {	
+	/*
+	* In order to emulate all the processing that
+	* happens when a mnemonic key is pressed, fake
+	* a mouse press and release.  This will ensure
+	* that radio and pull down items are handled
+	* properly.
+	*/
+	int hwnd = parent.handle;
+	if (OS.GetKeyState (OS.VK_LBUTTON) < 0) return;
+	int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0);
+	RECT rect = new RECT ();
+	OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect);
+	int lParam = (dropDown ? rect.right - 1 : rect.left) | (rect.top << 16);
+	int hotIndex = OS.SendMessage (hwnd, OS.TB_GETHOTITEM, 0, 0);
+	OS.SendMessage (hwnd, OS.WM_LBUTTONDOWN, 0, lParam);
+	OS.SendMessage (hwnd, OS.WM_LBUTTONUP, 0, lParam);
+	if (hotIndex != -1) {
+		OS.SendMessage (hwnd, OS.TB_SETHOTITEM, hotIndex, 0);
+	}
+}
+
+Image createDisabledImage (Image image, Color color) {
+	Display display = getDisplay ();
+	if (OS.IsWinCE) {
+		return new Image (display, image, SWT.IMAGE_DISABLE);
+	}
+	Rectangle rect = image.getBounds ();
+	Image disabled = new Image (display, rect);
+	GC gc = new GC (disabled);
+	gc.setBackground (color);
+	gc.fillRectangle (rect);
+	int hDC = gc.handle;
+	int hImage = image.handle;
+	int fuFlags = OS.DSS_DISABLED;
+	switch (image.type) {
+		case SWT.BITMAP: fuFlags |= OS.DST_BITMAP; break;
+		case SWT.ICON: fuFlags |= OS.DST_ICON; break;
+	}
+	OS.DrawState (hDC, 0, 0, hImage, 0, 0, 0, rect.width, rect.height, fuFlags);
+	gc.dispose ();
+	return disabled;
+}
+
+/**
+ * Returns a rectangle describing the receiver's size and location
+ * relative to its parent.
+ *
+ * @return the receiver's bounding rectangle
+ *
+ * @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 Rectangle getBounds () {
+	checkWidget();
+	int hwnd = parent.handle;
+	int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0);
+	RECT rect = new RECT ();
+	OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect);
+	int width = rect.right - rect.left;
+	int height = rect.bottom - rect.top;
+	return new Rectangle (rect.left, rect.top, width, height);
+}
+
+/**
+ * Returns the control that is used to fill the bounds of
+ * the item when the items is a <code>SEPARATOR</code>.
+ *
+ * @return the control
+ *
+ * @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 Control getControl () {
+	checkWidget();
+	return control;
+}
+
+/**
+ * Returns the receiver's disabled image if it has one, or null
+ * if it does not.
+ * <p>
+ * The disabled image is displayed when the receiver is disabled.
+ * </p>
+ *
+ * @return the receiver's disabled image
+ *
+ * @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 Image getDisabledImage () {
+	checkWidget();
+	return disabledImage;
+}
+
+public Display getDisplay () {
+	ToolBar parent = this.parent;
+	if (parent == null) error (SWT.ERROR_WIDGET_DISPOSED);
+	return parent.getDisplay ();
+}
+
+/**
+ * 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();
+	int hwnd = parent.handle;
+	int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0);
+	return (fsState & OS.TBSTATE_ENABLED) != 0;
+}
+
+/**
+ * Returns the receiver's hot image if it has one, or null
+ * if it does not.
+ * <p>
+ * The hot image is displayed when the mouse enters the receiver.
+ * </p>
+ *
+ * @return the receiver's hot image
+ *
+ * @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 Image getHotImage () {
+	checkWidget();
+	return hotImage;
+}
+
+/**
+ * Returns the receiver's parent, which must be a <code>ToolBar</code>.
+ *
+ * @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 ToolBar getParent () {
+	checkWidget();
+	return parent;
+}
+
+/**
+ * Returns <code>true</code> if the receiver is selected,
+ * and false otherwise.
+ * <p>
+ * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>,
+ * it is selected when it is checked (which some platforms draw as a
+ * pushed in button). If the receiver is of any other type, this method
+ * returns false.
+ * </p>
+ *
+ * @return the selection 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 getSelection () {
+	checkWidget();
+	if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return false;
+	int hwnd = parent.handle;
+	int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0);
+	return (fsState & OS.TBSTATE_CHECKED) != 0;
+}
+
+/**
+ * Returns the receiver's tool tip text, or null if it has not been set.
+ *
+ * @return the receiver's tool tip text
+ *
+ * @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 String getToolTipText () {
+	checkWidget();
+	return toolTipText;
+}
+
+/**
+ * Gets the width of the receiver.
+ *
+ * @return the width
+ *
+ * @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 getWidth () {
+	checkWidget();
+	int hwnd = parent.handle;
+	int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0);
+	RECT rect = new RECT ();
+	OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect);
+	return rect.right - rect.left;
+}
+
+/**
+ * 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 () && parent.isEnabled ();
+}
+
+void releaseChild () {
+	super.releaseChild ();
+	parent.destroyItem (this);
+}
+
+void releaseWidget () {
+	super.releaseWidget ();
+	parent = null;
+	control = null;
+	toolTipText = null;
+	disabledImage = hotImage = null;
+	if (disabledImage2 != null) disabledImage2.dispose ();
+	disabledImage2 = null;
+}
+
+void releaseImages () {
+	TBBUTTONINFO info = new TBBUTTONINFO ();
+	info.cbSize = TBBUTTONINFO.sizeof;
+	info.dwMask = OS.TBIF_IMAGE | OS.TBIF_STYLE;
+	int hwnd = parent.handle;
+	OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info);
+	/*
+	* Feature in Windows.  For some reason, a tool item that has
+	* the style BTNS_SEP does not return I_IMAGENONE when queried
+	* for an image index, despite the fact that no attempt has been
+	* made to assign an image to the item.  As a result, operations
+	* on an image list that use the wrong index cause random results.	
+	* The fix is to ensure that the tool item is not a separator
+	* before using the image index.  Since separators cannot have
+	* an image and one is never assigned, this is not a problem.
+	*/
+	if ((info.fsStyle & OS.BTNS_SEP) == 0 && info.iImage != OS.I_IMAGENONE) {
+		ImageList imageList = parent.getImageList ();
+		ImageList hotImageList = parent.getHotImageList ();
+		ImageList disabledImageList = parent.getDisabledImageList();
+		if (imageList != null) imageList.put (info.iImage, null);
+		if (hotImageList != null) hotImageList.put (info.iImage, null);
+		if (disabledImageList != null) disabledImageList.put (info.iImage, null);
+	}
+}
+
+/**
+ * Removes the listener from the collection of listeners who will
+ * be notified when the control is selected.
+ *
+ * @param listener the listener which should 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);	
+}
+
+void resizeControl () {
+	if (control != null && !control.isDisposed ()) {
+		/*
+		* Set the size and location of the control
+		* separately to minimize flashing in the
+		* case where the control does not resize
+		* to the size that was requested.  This
+		* case can occur when the control is a
+		* combo box.
+		*/
+		Rectangle itemRect = getBounds ();
+		control.setSize (itemRect.width, itemRect.height);
+		Rectangle rect = control.getBounds ();
+		rect.x = itemRect.x + (itemRect.width - rect.width) / 2;
+		rect.y = itemRect.y + (itemRect.height - rect.height) / 2;
+		control.setLocation (rect.x, rect.y);
+	}
+}
+
+void selectRadio () {
+	int index = 0;
+	ToolItem [] items = parent.getItems ();
+	while (index < items.length && items [index] != this) index++;
+	int i = index - 1;
+	while (i >= 0 && items [i].setRadioSelection (false)) --i;
+	int j = index + 1;
+	while (j < items.length && items [j].setRadioSelection (false)) j++;
+	setSelection (true);
+}
+
+/**
+ * Sets the control that is used to fill the bounds of
+ * the item when the items is a <code>SEPARATOR</code>.
+ *
+ * @param control the new control
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> 
+ *    <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</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>
+ */
+public void setControl (Control control) {
+	checkWidget();
+	if (control != null) {
+		if (control.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
+		if (control.parent != parent) error (SWT.ERROR_INVALID_PARENT);
+	}
+	if ((style & SWT.SEPARATOR) == 0) return;
+	this.control = control;
+	resizeControl ();
+}
+
+/**
+ * Enables the receiver if the argument is <code>true</code>,
+ * and disables it otherwise.
+ * <p>
+ * A disabled control is typically
+ * not selectable from the user interface and draws with an
+ * inactive or "grayed" look.
+ * </p>
+ *
+ * @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();
+	int hwnd = parent.handle;
+	int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0);
+	fsState &= ~OS.TBSTATE_ENABLED;
+	if (enabled) fsState |= OS.TBSTATE_ENABLED;
+	OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState);
+	if (image != null) updateImages ();
+}
+
+/**
+ * Sets the receiver's disabled image to the argument, which may be
+ * null indicating that no disabled image should be displayed.
+ * <p>
+ * The disbled image is displayed when the receiver is disabled.
+ * </p>
+ *
+ * @param image the disabled image to display on the receiver (may be null)
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</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>
+ */
+public void setDisabledImage (Image image) {
+	checkWidget();
+	if ((style & SWT.SEPARATOR) != 0) return;
+	if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
+	disabledImage = image;
+	updateImages ();
+}
+
+/**
+ * Sets the receiver's hot image to the argument, which may be
+ * null indicating that no hot image should be displayed.
+ * <p>
+ * The hot image is displayed when the mouse enters the receiver.
+ * </p>
+ *
+ * @param image the hot image to display on the receiver (may be null)
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</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>
+ */
+public void setHotImage (Image image) {
+	checkWidget();
+	if ((style & SWT.SEPARATOR) != 0) return;
+	if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
+	hotImage = image;
+	updateImages ();
+}
+
+public void setImage (Image image) {
+	checkWidget();
+	if ((style & SWT.SEPARATOR) != 0) return;
+	if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
+	super.setImage (image);
+	updateImages ();
+}
+
+boolean setRadioSelection (boolean value) {
+	if ((style & SWT.RADIO) == 0) return false;
+	if (getSelection () != value) {
+		setSelection (value);
+		postEvent (SWT.Selection);
+	}
+	return true;
+}
+
+/**
+ * Sets the selection state of the receiver.
+ * <p>
+ * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>,
+ * it is selected when it is checked (which some platforms draw as a
+ * pushed in button).
+ * </p>
+ *
+ * @param selected the new selection 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 setSelection (boolean selected) {
+	checkWidget();
+	if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return;
+	int hwnd = parent.handle;
+	int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0);
+	fsState &= ~OS.TBSTATE_CHECKED;
+	if (selected) fsState |= OS.TBSTATE_CHECKED;
+	OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState);
+}
+/**
+ * Sets the receiver's text. The string may include
+ * the mnemonic character.
+ * </p>
+ * <p>
+ * Mnemonics are indicated by an '&amp' that causes the next
+ * character to be the mnemonic.  When the user presses a
+ * key sequence that matches the mnemonic, a selection
+ * event occurs. On most platforms, the mnemonic appears
+ * underlined but may be emphasised in a platform specific
+ * manner.  The mnemonic indicator character '&amp' can be
+ * escaped by doubling it in the string, causing a single
+ *'&amp' to be displayed.
+ * </p>
+ * 
+ * @param string the new text
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the text 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>
+ */
+public void setText (String string) {
+	checkWidget();
+	if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
+	if ((style & SWT.SEPARATOR) != 0) return;
+	super.setText (string);
+	int hwnd = parent.handle;
+	int hHeap = OS.GetProcessHeap ();
+	TCHAR buffer = new TCHAR (parent.getCodePage (), string, true);
+	int byteCount = buffer.length () * TCHAR.sizeof;
+	int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
+	OS.MoveMemory (pszText, buffer, byteCount); 
+	TBBUTTONINFO info = new TBBUTTONINFO ();
+	info.cbSize = TBBUTTONINFO.sizeof;
+	info.dwMask = OS.TBIF_TEXT | OS.TBIF_STYLE;
+	info.pszText = pszText;
+	info.fsStyle = (byte) (widgetStyle () | OS.BTNS_AUTOSIZE);
+	OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info);
+	OS.HeapFree (hHeap, 0, pszText);
+	
+	/*
+	* Bug in Windows.  For some reason, when the font is set
+	* before any tool item has text, the tool items resize to
+	* a very small size.  Also, a tool item will only show text
+	* when text has already been set on one item and then a new
+	* item is created.  The fix is to use WM_SETFONT to force
+	* the tool bar to redraw and layout.  [1G0G7TV, 1G0FUJ5]
+	*/
+	int hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0);
+	OS.SendMessage (hwnd, OS.WM_SETFONT, hFont, 0);
+	
+	parent.layoutItems ();
+}
+
+/**
+ * Sets the receiver's tool tip text to the argument, which
+ * may be null indicating that no tool tip text should be shown.
+ *
+ * @param string the new tool tip text (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 void setToolTipText (String string) {
+	checkWidget();
+	toolTipText = string;
+}
+
+/**
+ * Sets the width of the receiver.
+ *
+ * @param width the new width
+ *
+ * @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 setWidth (int width) {
+	checkWidget();
+	if ((style & SWT.SEPARATOR) == 0) return;
+	if (width < 0) return;
+	int hwnd = parent.handle;
+	TBBUTTONINFO info = new TBBUTTONINFO ();
+	info.cbSize = TBBUTTONINFO.sizeof;
+	info.dwMask = OS.TBIF_SIZE;
+	info.cx = (short) width;
+	OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info);
+	parent.layoutItems ();
+}
+
+void updateImages () {
+	int hwnd = parent.handle;
+	TBBUTTONINFO info = new TBBUTTONINFO ();
+	info.cbSize = TBBUTTONINFO.sizeof;
+	info.dwMask = OS.TBIF_IMAGE;
+	OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info);
+	if (info.iImage == OS.I_IMAGENONE && image == null) return;
+	ImageList imageList = parent.getImageList ();
+	ImageList hotImageList = parent.getHotImageList ();
+	ImageList disabledImageList = parent.getDisabledImageList();
+	if (info.iImage == OS.I_IMAGENONE) {
+		Display display = getDisplay ();
+		Rectangle bounds = image.getBounds ();
+		Point size = new Point (bounds.width, bounds.height);
+		if (imageList == null) imageList = display.getToolImageList (size);
+		info.iImage = imageList.add (image);
+		parent.setImageList (imageList);
+		if (disabledImageList == null) disabledImageList = display.getToolDisabledImageList (size);
+		Image disabled = disabledImage;
+		if (disabledImage == null) {
+			if (disabledImage2 != null) disabledImage2.dispose ();
+			disabledImage2 = null;
+			disabled = image;
+			if (!getEnabled ()) {
+				Color color = parent.getBackground ();
+				disabled = disabledImage2 = createDisabledImage (image, color);
+			}
+		}
+		disabledImageList.add (disabled);
+		parent.setDisabledImageList (disabledImageList);
+//		if ((parent.style & SWT.FLAT) != 0) {
+			if (hotImageList == null) hotImageList = display.getToolHotImageList (size);
+			hotImageList.add (hotImage != null ? hotImage : image);
+			parent.setHotImageList (hotImageList);
+//		}
+	} else {
+		if (imageList != null) imageList.put (info.iImage, image);
+		if (disabledImageList != null) {
+			Image disabled = null;
+			if (image != null) {
+				if (disabledImage2 != null) disabledImage2.dispose ();
+				disabledImage2 = null;
+				disabled = disabledImage;
+				if (disabledImage == null) {
+					disabled = image;
+					if (!getEnabled ()) {
+						Color color = parent.getBackground ();
+						disabled = disabledImage2 = createDisabledImage (image, color);
+					}
+				}
+			}
+			disabledImageList.put (info.iImage, disabled);
+		}
+		if (hotImageList != null) {
+			Image hot = null;
+			if (image != null) hot = hotImage != null ? hotImage : image;
+			hotImageList.put (info.iImage, hot);
+		}
+		if (image == null) info.iImage = OS.I_IMAGENONE;
+	}
+	OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info);
+	
+	parent.layoutItems ();
+}
+
+int widgetStyle () {
+	if ((style & SWT.DROP_DOWN) != 0) return OS.BTNS_DROPDOWN;
+	if ((style & SWT.PUSH) != 0) return OS.BTNS_BUTTON;
+	if ((style & SWT.CHECK) != 0) return OS.BTNS_CHECK;
+	/*
+	* This code is intentionally commented.  In order to
+	* consistently support radio tool items across platforms,
+	* the platform radio behavior is not used.
+	*/
+//	if ((style & SWT.RADIO) != 0) return OS.BTNS_CHECKGROUP;
+	if ((style & SWT.RADIO) != 0) return OS.BTNS_CHECK;
+	if ((style & SWT.SEPARATOR) != 0) return OS.BTNS_SEP;
+	return OS.BTNS_BUTTON;
+}
+
+LRESULT wmCommandChild (int wParam, int lParam) {
+	if ((style & SWT.RADIO) != 0) {
+		if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) {
+			selectRadio ();
+		}
+	}
+	Event event = new Event ();
+	setInputState (event, SWT.Selection);
+	postEvent (SWT.Selection, event);
+	return null;
+}
+
+}