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/ToolTip.java
* @param hideDelay
	 *            the delay before the tooltip is hidden. If <code>0</code>
	 *            the tooltip is shown until user moves to other item
	 */
	public void setHideDelay(int hideDelay) {
		this.hideDelay = hideDelay;
	}
	/**
	 * Set the popup delay.
	 * 
	 * @param popupDelay
	 *            the delay before the tooltip is shown to the user. If
	 *            <code>0</code> the tooltip is shown immediately
	 */
	public void setPopupDelay(int popupDelay) {
		this.popupDelay = popupDelay;
	}
	/**
	 * Return if hiding on mouse down is set.
	 * 
	 * @return <code>true</code> if hiding on mouse down in the tool tip is on
	 */
	public boolean isHideOnMouseDown() {
		return hideOnMouseDown;
	}
	/**
	 * If you don't want the tool tip to be hidden when the user clicks inside
	 * the tool tip set this to <code>false</code>. You maybe also need to
	 * hide the tool tip yourself depending on what you do after clicking in the
	 * tooltip (e.g. if you open a new {@link Shell})