shadowingholder.java

无线传感器网络节点Sun SPOT管理工具

/*
 * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved. 
 * 
 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product that is
 * described in this document. In particular, and without limitation, these intellectual property rights may
 * include one or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents
 * or pending patent applications in the U.S. and in other countries.
 * 
 * U.S. Government Rights - Commercial software. Government users are subject to the Sun Microsystems, Inc.
 * standard license agreement and applicable provisions of the FAR and its supplements.
 * 
 * Use is subject to license terms. 
 * 
 * This distribution may include materials developed by third parties. Sun, Sun Microsystems, the Sun logo and
 * Java are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. 
 * 
 * Copyright (c) 2006 Sun Microsystems, Inc. Tous droits r?serv?s.
 * 
 * Sun Microsystems, Inc. d?tient les droits de propri?t? intellectuels relatifs ? la technologie incorpor?e dans
 * le produit qui est d?crit dans ce document. En particulier, et ce sans limitation, ces droits de propri?t?
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 * et un ou les brevets suppl?mentaires ou les applications de brevet en attente aux Etats - Unis et dans les
 * autres pays.
 * 
 * L'utilisation est soumise aux termes du contrat de licence.
 * 
 * Cette distribution peut comprendre des composants d?velopp?s par des tierces parties.
 * Sun, Sun Microsystems, le logo Sun et Java sont des marques de fabrique ou des marques d?pos?es de Sun
 * Microsystems, Inc. aux Etats-Unis et dans d'autres pays.
 */

package com.sun.spot.spotworld.gridview;

import java.awt.Component;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;


/**
 * Like InvisoObjectHolder but draws shaodwos for everything it carries.
 * @author randy
 */
public class ShadowingHolder extends InvisoObjectHolder {
    
    public void init(){
          super.init(); 
    }
    
    //Unsure why this method was being invoked on this object, but overriding to do nothing was required.
    public synchronized void mouseButton1Pressed(MouseEvent e) {
        
    }
    
    /*
     * This object draws the shadows of everything it holds, but is otherwise invisible.
     */
    public void paintChildren(Graphics g){ 
        // Now do two passes, once to render all the shadows, once to render all the basic images. 
        // Note the critical difference between doing all the shadows first, rather than
        // letting each draw both, one right after the otehr.
        Graphics2D g2 = (Graphics2D)g;   
        
        for(Component c : getComponents()){
            if(c instanceof GVObject){ 
                 g2.translate(c.getLocation().x + shadowOffsetX, c.getLocation().y + shadowOffsetY);
                 ((GVObject)c).paintShadow(g2);
                 g2.translate(-c.getLocation().x - shadowOffsetX, -c.getLocation().y - shadowOffsetY);
            }
        }
        
        for(Component c : getComponents()){
            if(c instanceof GVObject){ 
                 g2.translate(c.getLocation().x  , c.getLocation().y );
                 ((GVObject)c).paintComponentNoShadow(g2);
                 if(c instanceof Container)((Container) c).paintComponents(g);
                 g2.translate(- c.getLocation().x  ,- c.getLocation().y );
            } 
        }
    }
    
   /**
     *   Primary function of this holder is to wrap an object AND
     *   all its loosePieces so they can be draggeed around the screen together.
     *
     */
    public void addAndEncompass(GVObject go){ 
        super.addAndEncompass(go);
        Rectangle r = getBounds(); 
        r.setSize((int) r.getWidth() + shadowOffsetX,(int) r.getHeight() + shadowOffsetY);
        setBounds(r); 
    }
   
}