/*
 * Copyright (c) 2002-@year@, University of Maryland
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this list of conditions
 * and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions
 * and the following disclaimer in the documentation and/or other materials provided with the
 * distribution.
 *
 * Neither the name of the University of Maryland nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Piccolo was written at the Human-Computer Interaction Laboratory www.cs.umd.edu/hcil by Jesse Grosjean
 * under the supervision of Ben Bederson. The Piccolo website is www.cs.umd.edu/hcil/piccolo.
 */
package edu.umd.cs.piccolox.event;

import java.awt.event.InputEvent;

import edu.umd.cs.piccolo.PCamera;
import edu.umd.cs.piccolo.PNode;
import edu.umd.cs.piccolo.event.PBasicInputEventHandler;
import edu.umd.cs.piccolo.event.PInputEvent;
import edu.umd.cs.piccolo.event.PInputEventFilter;
import edu.umd.cs.piccolo.util.PBounds;

/**
 * <b>PZoomToEventHandler</b> is used to zoom the camera view to the node
 * clicked on with button one.
 * <P>
 * @version 1.0
 * @author Jesse Grosjean
 */
public class PZoomToEventHandler extends PBasicInputEventHandler {

	public PZoomToEventHandler() {
		setEventFilter(new PInputEventFilter(InputEvent.BUTTON1_MASK));
	}

	public void mousePressed(PInputEvent aEvent) {
		zoomTo(aEvent); 	
	}

	protected void zoomTo(final PInputEvent aEvent) {
		PBounds zoomToBounds;
		PNode picked = aEvent.getPickedNode();
		
		if (picked instanceof PCamera) {
			PCamera c = (PCamera) picked;
			zoomToBounds = c.getUnionOfLayerFullBounds();
		} else {
			zoomToBounds = picked.getGlobalFullBounds();
		}
		
		aEvent.getCamera().animateViewToCenterBounds(zoomToBounds, true, 500);
	}	
}