Bug 175098 [Viewers] Should be possible to override TooltipSupport
Eclipse 3.3 M5 I would like to override the control that is being used by the TooltipSupport in my ColumnViewer because I have some additional requirements (wrapping for instance and different font-style-ranges). Ben
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ColumnViewer.java
* Clear the viewer parts for the columns
	 */
	private void updateColumnParts(IBaseLabelProvider labelProvider) {
		ViewerColumn column;
		int i = 0;
		while ((column = getViewerColumn(i++)) != null) {
			column.setLabelProvider(CellLabelProvider
					.createViewerLabelProvider(labelProvider), false);
		}
	}
	/**
	 * Cancels a currently active cell editor if one is active. All changes
     * already done in the cell editor are lost.
	 * 
	 * @since 3.1 (in subclasses, added in 3.3 to abstract class)
	 */
	public void cancelEditing() {
		if (viewerEditor != null) {
			viewerEditor.cancelEditing();
		}
	}
	/**
	 * Apply the value of the active cell editor if one is active.
	 * 
	 * @since 3.3
	 */
	protected void applyEditorValue() {
		if (viewerEditor != null) {
			viewerEditor.applyEditorValue();
		}