1 /*

     2  * Copyright 2008-2009 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  * @test %I% %E%

    26  * @bug 6683728

    27  * @summary Tests that a JApplet in a translucent JFrame works properly

    28  * @author Kenneth.Russell@sun.com: area=Graphics

    29  * @compile -XDignore.symbol.file=true TranslucentJAppletTest.java

    30  * @run main/manual/othervm TranslucentJAppletTest

    31  */

    32 

    33 import java.awt.*;

    34 import java.awt.image.*;

    35 

    36 import javax.swing.*;

    37 

    38 public class TranslucentJAppletTest {

    39 

    40     private static JFrame frame;

    41     private static volatile boolean paintComponentCalled = false;

    42 

    43     private static void initAndShowGUI() {

    44         frame = new JFrame();

    45         JApplet applet = new JApplet();

    46         JPanel panel = new JPanel() {

    47             protected void paintComponent(Graphics g) {

    48                 paintComponentCalled = true;

    49                 g.setColor(Color.RED);

    50                 g.fillOval(0, 0, getWidth(), getHeight());

    51             }

    52         };

    53         panel.setDoubleBuffered(false);

    54         panel.setOpaque(false);

    55         applet.add(panel);

    56         frame.add(applet);

    57         frame.setBounds(100, 100, 200, 200);

    58         frame.setUndecorated(true);

    59         frame.setBackground(new Color(0, 0, 0, 0));

    60         frame.setVisible(true);

    61     }

    62 

    63     public static void main(String[] args)

    64         throws Exception

    65     {

    66         sun.awt.SunToolkit tk = (sun.awt.SunToolkit)Toolkit.getDefaultToolkit();

    67 

    68         Robot r = new Robot();

    69         Color color1 = r.getPixelColor(100, 100); // (0, 0) in frame coordinates

    70 

    71         SwingUtilities.invokeAndWait(new Runnable() {

    72             public void run() {

    73                 initAndShowGUI();

    74             }

    75         });

    76         tk.realSync();

    77 

    78         if (!paintComponentCalled) {

    79             throw new RuntimeException("Test FAILED: panel's paintComponent() method is not called");

    80         }

    81 

    82         Color newColor1 = r.getPixelColor(100, 100);

    83         // unfortunately, robot.getPixelColor() doesn't work for some unknown reason

    84         // Color newColor2 = r.getPixelColor(200, 200);

    85         BufferedImage bim = r.createScreenCapture(new Rectangle(200, 200, 1, 1));

    86         Color newColor2 = new Color(bim.getRGB(0, 0));

    87 

    88         // Frame must be transparent at (100, 100) in screen coords

    89         if (!color1.equals(newColor1)) {

    90             System.err.println("color1 = " + color1);

    91             System.err.println("newColor1 = " + newColor1);

    92             throw new RuntimeException("Test FAILED: frame pixel at (0, 0) is not transparent");

    93         }

    94 

    95         // Frame must be RED at (200, 200) in screen coords

    96         if (!newColor2.equals(Color.RED)) {

    97             System.err.println("newColor2 = " + newColor2);

    98             throw new RuntimeException("Test FAILED: frame pixel at (100, 100) is not red (transparent?)");

    99         }

   100 

   101         System.out.println("Test PASSED");

   102     }

   103 }