/*******************************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * 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:
 *  Actuate Corporation  - initial API and implementation
 *******************************************************************************/

package org.eclipse.birt.report.designer.ui.widget;

import org.eclipse.jface.viewers.TreeViewer;

public interface ITreeViewerBackup
{

	public abstract void restoreBackup( TreeViewer treeviewer );

	public abstract void dispose( );

	public abstract void updateCollapsedStatus( TreeViewer treeViewer,
			Object collapsedElement );

	public abstract void updateExpandedStatus( TreeViewer treeViewer,
			Object expandedElement );
			
	public abstract void updateStatus( TreeViewer treeViewer );

}