/******************************************************************************* * Copyright (c) 2004, 2005 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.gef.examples.text.edit; import java.beans.PropertyChangeListener; import org.eclipse.gef.editparts.AbstractTreeEditPart; import org.eclipse.gef.examples.text.model.ModelElement; /** * @since 3.1 */ public abstract class ExampleTreePart extends AbstractTreeEditPart implements PropertyChangeListener { public void activate() { super.activate(); ModelElement model = (ModelElement)getModel(); model.addPropertyChangeListener(this); } public void deactivate() { ModelElement model = (ModelElement)getModel(); model.removePropertyChangeListener(this); super.deactivate(); } }