1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24  /*
  25  @test
  26  @bug 8062946
  27  @summary Verify Transparency upon iconify/deiconify sequence
  28  @run main TransparencyTest
  29  */
  30 import java.awt.Color;
  31 import java.awt.Point;
  32 import java.awt.Robot;
  33 import javax.swing.JDialog;
  34 import javax.swing.JFrame;
  35 import javax.swing.SwingUtilities;
  36 
  37 public class TransparencyTest {
  38 
  39     private static JFrame frame;
  40     private static JDialog dialog;
  41     private static JDialog backgroundDialog;
  42     private static final int WIDTH = 250;
  43     private static final int HEIGHT = 250;
  44     private static final float OPACITY = 0.60f;
  45     private static Point dlgPos;
  46 
  47     public static void createAndShowGUI() {
  48         frame = new JFrame("JFrame");
  49         frame.setSize(WIDTH, HEIGHT);
  50         frame.setLocation(100, 300);
  51 
  52         dialog = new JDialog(frame, false);
  53         dialog.setSize(250, 250);
  54         dialog.setUndecorated(true);
  55         dialog.setLocation(400, 300);
  56         dlgPos = dialog.getLocation();
  57         backgroundDialog = new JDialog(frame, false);
  58         backgroundDialog.setSize(250, 250);
  59         backgroundDialog.getContentPane().setBackground(Color.red);
  60         backgroundDialog.setLocation(dlgPos.x, dlgPos.y);
  61 
  62         frame.setVisible(true);
  63         backgroundDialog.setVisible(true);
  64         dialog.setVisible(true);
  65     }
  66 
  67     public static void main(String[] args) throws Exception {
  68 
  69         Robot robot = new Robot();
  70         // create a GUI
  71         SwingUtilities.invokeAndWait(new Runnable() {
  72 
  73             @Override
  74             public void run() {
  75                 createAndShowGUI();
  76             }
  77         });
  78         robot.waitForIdle();
  79         Color opaque = robot.getPixelColor(dlgPos.x + 100, dlgPos.y + 100);
  80 
  81         // set Dialog Opacity
  82         SwingUtilities.invokeAndWait(new Runnable() {
  83 
  84             @Override
  85             public void run() {
  86                 dialog.setOpacity(OPACITY);
  87             }
  88         });
  89         robot.waitForIdle();
  90 
  91         // iconify frame
  92         SwingUtilities.invokeAndWait(new Runnable() {
  93 
  94             @Override
  95             public void run() {
  96                 frame.setExtendedState(JFrame.ICONIFIED);
  97             }
  98         });
  99         robot.waitForIdle();
 100 
 101         // deiconify frame
 102         SwingUtilities.invokeAndWait(new Runnable() {
 103 
 104             @Override
 105             public void run() {
 106                 frame.setExtendedState(JFrame.NORMAL);
 107             }
 108         });
 109         robot.waitForIdle();
 110 
 111         Color transparent = robot.getPixelColor(dlgPos.x + 100, dlgPos.y + 100);
 112         if (transparent.equals(opaque)) {
 113             frame.dispose();
 114             throw new RuntimeException("JDialog transparency lost "
 115                     + "upon iconify/deiconify sequence");
 116         }
 117         frame.dispose();
 118     }
 119 }