Bug 284330 [JFace] Add isVisible API to ControlDecoration
Build ID: 3.5 Steps To Reproduce: This is an enhancement request. I would like to be able to programmatically determine if a ControlDecoration is visible. This is especially useful for testing.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ControlDecoration.java
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 * Copyright (c) 2006, 2009 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
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 * Contributors:
 *     IBM Corporation - initial API and implementation
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package org.eclipse.jface.fieldassist;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.jface.util.Util;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;