Bug 256516 [TabbedProperties] TabbedPropertySheetPage to allow some options
bundles/org.eclipse.ui.views.properties.tabbed/src/org/eclipse/ui/views/properties/tabbed/TabbedPropertySheetPage.java
}
			tabbedPropertyComposite.getTabComposite().layout(true);
			currentTab = tab;
			resizeScrolledComposite();
			if (descriptor != null) {
				handleTabSelection(descriptor);
			}
		}
		/**
		 * Shows the given tab.
		 */
		private void showTab(TabContents target) {
			if (target != null) {
				Composite tabComposite = (Composite) tabToComposite.get(target);
				if (tabComposite != null) {
					/**
					 * the following method call order is important - do not
					 * change it or the widgets might be drawn incorrectly
					 */
					tabComposite.moveAbove(null);
					target.aboutToBeShown();
					tabComposite.setVisible(true);
				}
			}
		}
		/**
		 * Hides the given tab.
		 */
		private void hideTab(TabContents target) {
			if (target != null) {