/*******************************************************************************
 * Copyright (c) 2006-2012
 * Software Technology Group, Dresden University of Technology
 * DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026
 * 
 * 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:
 *   Software Technology Group - TU Dresden, Germany;
 *   DevBoost GmbH - Berlin, Germany
 *      - initial API and implementation
 ******************************************************************************/
/*
 * @(#)LocatorHandle.java  2.0  2006-01-14
 *
 * Copyright (c) 1996-2006 by the original authors of JHotDraw
 * and all its contributors.
 * All rights reserved.
 *
 * The copyright of this software is owned by the authors and  
 * contributors of the JHotDraw project ("the copyright holders").  
 * You may not use, copy or modify this software, except in  
 * accordance with the license agreement you entered into with  
 * the copyright holders. For details see accompanying license terms. 
 */


package org.jhotdraw.draw;

import java.awt.*;
import java.awt.geom.*;
/**
 * A LocatorHandle implements a Handle by delegating the location requests to
 * a Locator object.
 *
 * @see Locator
 *
 * @author Werner Randelshofer
 * @version 2.0 2006-01-14 Changed to support double precision coordinates.
 * <br>1.0 2003-12-01 Derived from JHotDraw 5.4b1.
 */
public abstract class LocatorHandle extends AbstractHandle {
    private Locator locator;
    
    /**
     * Initializes the LocatorHandle with the given Locator.
     */
    public LocatorHandle(Figure owner, Locator l) {
        super(owner);
        locator = l;
    }
    
    public Point2D.Double getLocationOnDrawing() {
        return locator.locate(getOwner());
    }
    
    public Point getLocation() {
        return view.drawingToView(locator.locate(getOwner()));
    }
    
    protected Rectangle basicGetBounds() {
        Rectangle r = new Rectangle(getLocation());
        int h = getHandlesize();
        r.x -= h / 2;
        r.y -= h / 2;
        r.width = r.height = h;
        return r;
    }
}