/*
 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package demos.Images;

import java.awt.*;
import javax.swing.JButton;
import java.awt.image.ImageObserver;
import AnimatingSurface;
import 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());
    }
}
