dukeanim.java

Java2Demo版,不错的东东,需要先安装j2sdk

/*
 * Copyright (c) 2003 Sun Microsystems, Inc. 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.
 * 
 * -Redistribution in binary form must reproduct 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 Sun Microsystems, Inc. or the names of contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT
 * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT
 * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
 * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
 * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
 * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN
 * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that Software is not designed, licensed or intended for
 * use in the design, construction, operation or maintenance of any nuclear
 * facility.
 */

/*
 * @(#)DukeAnim.java	1.17 03/01/23
 */

package java2d.demos.Images;

import java.awt.*;
import javax.swing.JButton;
import java.awt.image.ImageObserver;
import java2d.AnimatingSurface;
import java2d.DemoPanel;


/**
 * Animated gif with a transparent background.
 */
public class DukeAnim extends AnimatingSurface implements ImageObserver {

    private static Image agif, clouds;
    private static int aw, ah, cw;
    private int x;
    private JButton b;


    public DukeAnim() {
        setBackground(Color.white);
        clouds = getImage("clouds.jpg");
        agif = getImage("duke.running.gif");
        aw = agif.getWidth(this) / 2;
        ah = agif.getHeight(this) / 2;
        cw = clouds.getWidth(this);
        dontThread = true;
    }


    public void reset(int w, int h) { 
        b = ((DemoPanel) getParent()).tools.startStopB;
    }


    public void step(int w, int h) { }


    public void render(int w, int h, Graphics2D g2) {
        if ((x -= 3) <= -cw) {
            x = w;
        }
        g2.drawImage(clouds, x, 10, cw, h-20, this);
        g2.drawImage(agif, w/2-aw, h/2-ah, this);
    }


    public boolean imageUpdate(Image img, int infoflags,
                int x, int y, int width, int height)
    {
        if (b.isSelected() && (infoflags & ALLBITS) != 0)
            repaint();
        if (b.isSelected() && (infoflags & FRAMEBITS) != 0)
            repaint();
        return isShowing();
    }



    public static void main(String s[]) {
        createDemoFrame(new DukeAnim());
    }
}