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 javax.swing.*; 25 import java.awt.*; 26 27 /* 28 * @test 29 * @bug 8164811 30 * @key headful 31 * @summary Check if a per-pixel translucent window shows only the area having 32 * opaque pixels 33 * Test Description: Check if PERPIXEL_TRANSLUCENT Translucency type is supported 34 * on the current platform. Proceed if it is supported. Create a swing window 35 * with some swing components in it and a transparent background (alpha 0.0). 36 * Bring this window on top of a known background. Do this test for JFrame, 37 * JWindow and JDialog 38 * Expected Result: Only the components present in the window must be shown. Other 39 * areas of the window must be transparent so that the background shows 40 * @author mrkam 41 * @library ../../../../lib/testlibrary 42 * @build Common ExtendedRobot 43 * @run main PerPixelTranslucentSwing 44 * @run main/othervm -Dsun.java2d.uiScale=1.5 PerPixelTranslucentSwing 45 */ 46 47 public class PerPixelTranslucentSwing extends Common { 48 49 JButton north; 50 51 public static void main(String[] ignored) throws Exception { 52 FG_COLOR = new Color(200, 0, 0, 0); 53 if (checkTranslucencyMode(GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSLUCENT)) 54 for (Class<Window> windowClass: WINDOWS_TO_TEST) 55 new PerPixelTranslucentSwing(windowClass).doTest(); 56 } 57 58 public PerPixelTranslucentSwing(Class windowClass) throws Exception { 59 super(windowClass); 60 } 61 62 @Override 63 public void createSwingComponents() { 64 Container contentPane = RootPaneContainer.class.cast(window).getContentPane(); 65 BorderLayout bl = new BorderLayout(10, 5); 66 contentPane.setLayout(bl); 67 68 north = new JButton("North"); 69 contentPane.add(north, BorderLayout.NORTH); 70 71 JList center = new JList(new String[] {"Center"}); 72 contentPane.add(center, BorderLayout.CENTER); 73 74 JTextField south = new JTextField("South"); 75 contentPane.add(south, BorderLayout.SOUTH); 76 77 window.pack(); 78 window.setVisible(true); 79 80 north.requestFocus(); 81 } 82 83 @Override 84 public void doTest() throws Exception { 85 robot.waitForIdle(delay); 86 87 // Check for background translucency 88 Rectangle bounds = north.getBounds(); 89 Point loc = north.getLocationOnScreen(); 90 91 Color color = robot.getPixelColor(loc.x + bounds.width / 2, loc.y + bounds.height + 3); 92 System.out.println(color); 93 if (FG_COLOR.getRGB() == color.getRGB()) 94 throw new RuntimeException("Background is not translucent (" + color + ")"); 95 96 EventQueue.invokeAndWait(this::dispose); 97 } 98 }