PerPixelTranslucentSwing.java revision 14851:980da45565c8
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 24import javax.swing.*; 25import java.awt.*; 26 27/* 28 * @test 29 * @key headful 30 * @summary Check if a per-pixel translucent window shows only the area having 31 * opaque pixels 32 * Test Description: Check if PERPIXEL_TRANSLUCENT Translucency type is supported 33 * on the current platform. Proceed if it is supported. Create a swing window 34 * with some swing components in it and a transparent background (alpha 0.0). 35 * Bring this window on top of a known background. Do this test for JFrame, 36 * JWindow and JDialog 37 * Expected Result: Only the components present in the window must be shown. Other 38 * areas of the window must be transparent so that the background shows 39 * @author mrkam 40 * @library ../../../../lib/testlibrary 41 * @build Common ExtendedRobot 42 * @run main PerPixelTranslucentSwing 43 */ 44 45public class PerPixelTranslucentSwing extends Common { 46 47 JButton north; 48 49 public static void main(String[] ignored) throws Exception { 50 FG_COLOR = new Color(200, 0, 0, 0); 51 if (checkTranslucencyMode(GraphicsDevice.WindowTranslucency.PERPIXEL_TRANSLUCENT)) 52 for (Class<Window> windowClass: WINDOWS_TO_TEST) 53 new PerPixelTranslucentSwing(windowClass).doTest(); 54 } 55 56 public PerPixelTranslucentSwing(Class windowClass) throws Exception { 57 super(windowClass); 58 } 59 60 @Override 61 public void createSwingComponents() { 62 Container contentPane = RootPaneContainer.class.cast(window).getContentPane(); 63 BorderLayout bl = new BorderLayout(10, 5); 64 contentPane.setLayout(bl); 65 66 north = new JButton("North"); 67 contentPane.add(north, BorderLayout.NORTH); 68 69 JList center = new JList(new String[] {"Center"}); 70 contentPane.add(center, BorderLayout.CENTER); 71 72 JTextField south = new JTextField("South"); 73 contentPane.add(south, BorderLayout.SOUTH); 74 75 window.pack(); 76 window.setVisible(true); 77 78 north.requestFocus(); 79 } 80 81 @Override 82 public void doTest() throws Exception { 83 robot.waitForIdle(delay); 84 85 // Check for background translucency 86 Rectangle bounds = north.getBounds(); 87 Point loc = north.getLocationOnScreen(); 88 89 Color color = robot.getPixelColor(loc.x + bounds.width / 2, loc.y + bounds.height + 3); 90 System.out.println(color); 91 if (FG_COLOR.getRGB() == color.getRGB()) 92 throw new RuntimeException("Background is not translucent (" + color + ")"); 93 94 EventQueue.invokeAndWait(this::dispose); 95 } 96} 97