1 /*
   2  * Copyright (c) 2010, 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 import java.awt.*;
  25 import java.awt.event.MouseAdapter;
  26 import java.awt.event.MouseEvent;
  27 
  28 /*
  29  * @test
  30  * @key headful
  31  * @summary Check if a Choice present in a window set with opacity less than 1.0
  32  *          shows a translucent drop down
  33  *
  34  * Test Description: Check if TRANSLUCENT Translucency type is supported on the
  35  *      current platform. Proceed if supported. Show a window which contains an
  36  *      awt Choice and set with opacity less than 1.0. Another Window having a
  37  *      canvas component drawn with an image can be used as the background for
  38  *      the test window. Click on the ComboBox to show the drop down. Check if
  39  *      the drop down appears translucent. Repeat this for Window, Dialog and
  40  *      Frame.
  41  * Expected Result: If TRANSLUCENT Translucency type is supported, the drop down
  42  *      should appear translucent.
  43  *
  44  * @author mrkam
  45  * @author Dmitriy Ermashov (dmitriy.ermashov@oracle.com)
  46  * @library ../../../../lib/testlibrary
  47  * @build Common ExtendedRobot
  48  * @run main TranslucentChoice
  49  */
  50 
  51 public class TranslucentChoice extends Common {
  52 
  53     Choice south;
  54     Component center;
  55     Component north;
  56     volatile int clicked;
  57 
  58     public static void main(String[] ignored) throws Exception {
  59         if (checkTranslucencyMode(GraphicsDevice.WindowTranslucency.TRANSLUCENT))
  60             for (Class<Window> windowClass: WINDOWS_TO_TEST){
  61                 new TranslucentChoice(windowClass).doTest();
  62             }
  63     }
  64 
  65     public TranslucentChoice(Class windowClass) throws Exception {
  66         super(windowClass);
  67     }
  68 
  69     @Override
  70     public void initBackgroundFrame() {
  71         super.initBackgroundFrame();
  72         background.addMouseListener(new MouseAdapter() {
  73             @Override
  74             public void mouseClicked(MouseEvent e) {
  75                 clicked |= 1 << 0;
  76             }
  77         });
  78     }
  79 
  80     @Override
  81     public void initGUI() {
  82         if (windowClass.equals(Frame.class)) {
  83             window = new Frame();
  84             ((Frame) window).setUndecorated(true);
  85         } else  if (windowClass.equals(Dialog.class)) {
  86             window = new Dialog(background);
  87             ((Dialog) window).setUndecorated(true);
  88         } else {
  89             window = new Window(background);
  90         }
  91 
  92         window.setBackground(FG_COLOR);
  93         north = new Button("north");
  94         window.add(north, BorderLayout.NORTH);
  95 
  96         center = new List(5);
  97         window.add(center, BorderLayout.CENTER);
  98 
  99         Choice choice = new Choice();
 100         for(int i = 0; i < 20; i++) {
 101             choice.add("item " + i);
 102         }
 103         south = choice;
 104 
 105         south.addMouseListener(new MouseAdapter() {
 106             @Override
 107             public void mouseClicked(MouseEvent e) {
 108                 clicked |= 1 << 1;
 109             }
 110         });
 111 
 112         window.add(south, BorderLayout.SOUTH);
 113         window.setAlwaysOnTop(true);
 114         window.setOpacity(0.3f);
 115         window.setLocation(2 * dl, 2 * dl);
 116         window.setSize(255, 255);
 117         window.pack();
 118         window.setVisible(true);
 119 
 120         System.out.println("Checking " + window.getClass().getName() + "...");
 121     }
 122 
 123     @Override
 124     public void doTest() throws Exception {
 125 
 126         Point ls = window.getLocationOnScreen();
 127         clicked = 0;
 128         checkClick(ls.x + window.getWidth() / 2, ls.y - 5, 0);
 129 
 130         robot.waitForIdle(2000);
 131 
 132         ls = south.getLocationOnScreen();
 133 
 134         Point p1 = new Point((int) (ls.x + south.getWidth() * 0.75), ls.y + south.getHeight() * 3);
 135         Point p2 = new Point((int) (ls.x + south.getWidth() * 0.75), ls.y - south.getHeight() * 2);
 136         Color c1 = robot.getPixelColor(p1.x, p1.y);
 137         Color c2 = robot.getPixelColor(p2.x, p2.y);
 138 
 139         checkClick(ls.x + south.getWidth() / 2, ls.y + south.getHeight() / 2, 1);
 140 
 141         robot.waitForIdle(2000);
 142 
 143         Color c1b = robot.getPixelColor(p1.x, p1.y);
 144         Color c2b = robot.getPixelColor(p2.x, p2.y);
 145 
 146         if (!aproximatelyEquals(c1, c1b) && !aproximatelyEquals(south.getBackground(), c1b))
 147             throw new RuntimeException("Check for opaque drop down failed. Before click: " + c1 + ", after click: " + c1b + ", expected is " + south.getBackground());
 148 
 149         if (!aproximatelyEquals(c2,c2b) && !aproximatelyEquals(south.getBackground(), c2b))
 150             throw new RuntimeException("Check for opaque drop down failed. Before click: " + c2 + ", after click: " + c2b + ", expected is " + south.getBackground());
 151 
 152         EventQueue.invokeAndWait(() -> {
 153             background.dispose();
 154             window.dispose();
 155         });
 156 
 157         robot.waitForIdle();
 158     }
 159 
 160     boolean aproximatelyEquals(Color c1, Color c2) {
 161         return ((Math.abs(c1.getRed()-c2.getRed())/256.0 +
 162                 Math.abs(c1.getGreen()-c2.getGreen())/256.0 +
 163                 Math.abs(c1.getBlue()-c2.getBlue())/256.0)) / 3 < 0.02;
 164     }
 165 
 166     @Override
 167     public void applyShape() { }
 168 
 169 
 170     void checkClick(int x, int y, int flag) throws Exception {
 171 
 172         System.out.println("Trying to click point " + x + ", " + y + ", looking for " + flag + " flag to trigger.");
 173 
 174         clicked = 0;
 175         robot.mouseMove(x, y);
 176         robot.click();
 177 
 178         for (int i = 0; i < 100; i++)
 179             if ((clicked & (1 << flag)) == 0)
 180                 robot.delay(50);
 181             else
 182                 break;
 183 
 184         if ((clicked & (1 << flag)) == 0)
 185             throw new RuntimeException("FAIL: Flag " + flag + " is not triggered for point " + x + ", " + y + "!");
 186     }
 187 }