Bug 195137 [Viewers] Tooltip for multiline comment in History view hinders selection
N20070702-0010 The tooltip for multiline comments in the History view hinders selection of the row behind, e.g.: - open CVS History for /org.eclipse.core.expressions/.classpath - move mouse to column "Comment" of rev. 1.7 - click -> clicks "through" the tooltip and selects the row - move mouse down to rev. 1.6 - Shift+click to select both items -> mouse click does nothing -> expected: should select rev. 1.6 and dismiss the tooltip If you now press Alt+Tab to file a bug, the tooltip even stays up, although the workbench window has lost focus.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ColumnViewerToolTipSupport.java
private ColumnViewer viewer;
	private static final String LABEL_PROVIDER_KEY = Policy.JFACE
			+ "_LABEL_PROVIDER"; 
	private static final String ELEMENT_KEY = Policy.JFACE + "_ELEMENT_KEY"; 
	private static final int DEFAULT_SHIFT_X = 10;
	private static final int DEFAULT_SHIFT_Y = 0;
	/**
	 * Enable ToolTip support for the viewer by creating an instance from this
	 * class. To get all necessary informations this support class consults the
	 * {@link CellLabelProvider}.
	 * 
	 * @param viewer
	 *            the viewer the support is attached to
	 * @param style style passed to control tool tip behavior
	 * 
	 * @param manualActivation
	 *            <code>true</code> if the activation is done manually using
	 *            {@link #show(Point)}
	 */
	protected ColumnViewerToolTipSupport(ColumnViewer viewer, int style, boolean manualActivation ) {
		super(viewer.getControl(),style,manualActivation);
		this.viewer = viewer;
	}
	/**
	 * Enable ToolTip support for the viewer by creating an instance from this
	 * class. To get all necessary informations this support class consults the
	 * {@link CellLabelProvider}.
	 * 
	 * @param viewer
	 *            the viewer the support is attached to