Bug 163274 [JFace] Provide customizable ToolTip at JFace level
More and more elements in JFace and UI request Customizable TooltipSupport. We should think about providing a common class providing a solid base for Tooltip implementations.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ToolTipSupport.java
viewer.getControl().removeListener(SWT.MouseMove, listener);
		viewer.getControl().removeListener(SWT.MouseExit, listener);
		viewer.getControl().removeListener(SWT.MouseDown, listener);
	}
	
	private class MouseListener implements Listener {
		private Shell tip;
		private TooltipHideListener hideListener = new TooltipHideListener();
		private Timer timer = new Timer(true);
		
		/* (non-Javadoc)
		 * @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
		 */
		public void handleEvent(Event event) {
			switch (event.type) {
			case SWT.Dispose:
				if( timer != null ) {
					timer.cancel();
				}
			case SWT.KeyDown:
			case SWT.MouseMove:
			case SWT.MouseDown:
				disposeTooltip(tip);
				break;
			case SWT.MouseHover:
                if (!(event.widget instanceof Control))
                  break;
                
                ViewerRow row = viewer.getViewerRow(((Control) event.widget).toDisplay(
                    event.x, event.y));