1 /*
2  *
3  * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  *   - Redistributions of source code must retain the above copyright
10  *     notice, this list of conditions and the following disclaimer.
11  *
12  *   - Redistributions in binary form must reproduce the above copyright
13  *     notice, this list of conditions and the following disclaimer in the
14  *     documentation and/or other materials provided with the distribution.
15  *
16  *   - Neither the name of Oracle nor the names of its
17  *     contributors may be used to endorse or promote products derived
18  *     from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
21  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 package java2d.demos.Images;
33 
34 
35 import java.awt.*;
36 import javax.swing.JButton;
37 import java.awt.image.ImageObserver;
38 import java2d.AnimatingSurface;
39 import java2d.DemoPanel;
40 
41 
42 /**
43  * Animated gif with a transparent background.
44  */
45 @SuppressWarnings("serial")
46 public class DukeAnim extends AnimatingSurface implements ImageObserver {
47 
48     private static Image agif, clouds;
49     private static int aw, ah, cw;
50     private int x;
51     private JButton b;
52 
53     @SuppressWarnings("LeakingThisInConstructor")
DukeAnim()54     public DukeAnim() {
55         setBackground(Color.white);
56         clouds = getImage("clouds.jpg");
57         agif = getImage("duke.running.gif");
58         aw = agif.getWidth(this) / 2;
59         ah = agif.getHeight(this) / 2;
60         cw = clouds.getWidth(this);
61         dontThread = true;
62     }
63 
64     @Override
reset(int w, int h)65     public void reset(int w, int h) {
66         b = ((DemoPanel) getParent()).tools.startStopB;
67     }
68 
69     @Override
step(int w, int h)70     public void step(int w, int h) {
71     }
72 
73     @Override
render(int w, int h, Graphics2D g2)74     public void render(int w, int h, Graphics2D g2) {
75         if ((x -= 3) <= -cw) {
76             x = w;
77         }
78         g2.drawImage(clouds, x, 10, cw, h - 20, this);
79         g2.drawImage(agif, w / 2 - aw, h / 2 - ah, this);
80     }
81 
82     @Override
imageUpdate(Image img, int infoflags, int x, int y, int width, int height)83     public boolean imageUpdate(Image img, int infoflags,
84             int x, int y, int width, int height) {
85         if (b.isSelected() && (infoflags & ALLBITS) != 0) {
86             repaint();
87         }
88         if (b.isSelected() && (infoflags & FRAMEBITS) != 0) {
89             repaint();
90         }
91         return isShowing();
92     }
93 
main(String s[])94     public static void main(String s[]) {
95         createDemoFrame(new DukeAnim());
96     }
97 }
98