1 /* 2 * Copyright (c) 2020, 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 8240654 27 * @summary Test painting a large window works 28 * @key headful 29 * @requires (os.family == "windows") 30 * @requires vm.gc.Z 31 * @run main/othervm -Dsun.java2d.uiScale=1 LargeWindowPaintTest 32 * @run main/othervm -Dsun.java2d.uiScale=1 -Dsun.java2d.d3d=false LargeWindowPaintTest 33 * @run main/othervm -XX:+UseZGC -Dsun.java2d.uiScale=1 LargeWindowPaintTest 34 * @run main/othervm -XX:+UseZGC -Dsun.java2d.uiScale=1 -Dsun.java2d.d3d=false LargeWindowPaintTest 35 */ 36 37 import java.awt.Color; 38 import java.awt.Frame; 39 import java.awt.Graphics; 40 import java.awt.Rectangle; 41 import java.awt.Robot; 42 43 import javax.swing.JFrame; 44 import javax.swing.JPanel; 45 import javax.swing.SwingUtilities; 46 import javax.swing.WindowConstants; 47 48 public class LargeWindowPaintTest extends JPanel { 49 50 static volatile JFrame frame = null; 51 static volatile LargeWindowPaintTest comp = null; 52 static Color color = Color.red; 53 54 public static void main(String[] args) throws Exception { 55 56 SwingUtilities.invokeAndWait(() -> { 57 frame = new JFrame("Large Window Paint Test"); 58 frame.add(comp = new LargeWindowPaintTest()); 59 frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); 60 frame.setExtendedState(Frame.MAXIMIZED_BOTH); 61 frame.setVisible(true); 62 }); 63 64 Thread.sleep(2000); 65 Robot robot = new Robot(); 66 robot.setAutoDelay(500); 67 robot.waitForIdle(); 68 Rectangle r = comp.getBounds(); 69 System.out.println("Component bounds = " + r); 70 Color c = robot.getPixelColor((int)r.getWidth()-100, (int)r.getHeight()-100); 71 72 SwingUtilities.invokeAndWait(() -> frame.dispose()); 73 74 if (!c.equals(color)) { 75 throw new RuntimeException("Color was " + c + " expected " + color); 76 } 77 } 78 79 @Override 80 protected void paintComponent(Graphics g) { 81 super.paintComponent(g); 82 g.setColor(color); 83 g.fillRect(0, 0, getSize().width, getSize().height); 84 }; 85 }