Bug 176158 Tool tip flickers
I20070227-0800 I'm using the new Tool tip support (org.eclipse.jface.window.ToolTip). The problem with this is that the tool tip flickers when the mouse is moved over an element. On mouse move the tool tip is hidden and then shown again. This makes the tool tip almost unusable. IMHO you should check that the mouse is still hovering over the same item and try to keep the visibility and position of the tooltip stable if so. I'll attach a little plugin showing the issue. Thanks
bundles/org.eclipse.jface/src/org/eclipse/jface/window/DefaultToolTip.java
private String text;
	private Color backgroundColor;
	private Font font;
	private Image backgroundImage;
	private Color foregroundColor;
	private Image image;
	private int style = SWT.SHADOW_NONE;
	/**
	 * Create new instance which add TooltipSupport to the widget
	 * 
	 * @param control the control on whose action the tooltip is shown
	 */
	public DefaultToolTip(Control control) {
		super(control);
	}
	/**
	 * Create new instance which add TooltipSupport to the widget
	 * 
	 * @param control the control to which the tooltip is bound