/*******************************************************************************
 * Copyright (c) 2000, 2010 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.tools;

import org.eclipse.gef.EditPart;

/**
 * A DragTracker whose job it is to deselect all {@link EditPart EditParts}.
 */
public class DeselectAllTracker extends SelectEditPartTracker {

	/**
	 * Constructs a new DeselectAllTracker.
	 * 
	 * @param ep
	 *            the edit part that returned this tracker
	 */
	public DeselectAllTracker(EditPart ep) {
		super(ep);
	}

	/**
	 * Calls {@link org.eclipse.gef.EditPartViewer#deselectAll()}.
	 * 
	 * @see org.eclipse.gef.tools.AbstractTool#handleButtonDown(int)
	 */
	protected boolean handleButtonDown(int button) {
		getCurrentViewer().deselectAll();
		return true;
	}

}
