/* * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 8240654 * @summary Test painting a large window works * @key headful * @requires (os.family == "windows") * @run main/othervm -Dsun.java2d.uiScale=1 LargeWindowPaintTest * @run main/othervm -Dsun.java2d.uiScale=1 -Dsun.java2d.d3d=false LargeWindowPaintTest * @run main/othervm -XX:+UseZGC -Dsun.java2d.uiScale=1 LargeWindowPaintTest * @run main/othervm -XX:+UseZGC -Dsun.java2d.uiScale=1 -Dsun.java2d.d3d=false LargeWindowPaintTest */ import java.awt.Color; import java.awt.Frame; import java.awt.Graphics; import java.awt.Rectangle; import java.awt.Robot; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.SwingUtilities; import javax.swing.WindowConstants; public class LargeWindowPaintTest extends JPanel { static volatile JFrame frame = null; static volatile LargeWindowPaintTest comp = null; static Color color = Color.red; public static void main(String[] args) throws Exception { SwingUtilities.invokeAndWait(() -> { frame = new JFrame("Large Window Paint Test"); frame.add(comp = new LargeWindowPaintTest()); frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); frame.setExtendedState(Frame.MAXIMIZED_BOTH); frame.setVisible(true); }); Thread.sleep(2000); Robot robot = new Robot(); robot.setAutoDelay(500); robot.waitForIdle(); Rectangle r = comp.getBounds(); System.out.println("Component bounds = " + r); Color c = robot.getPixelColor((int)r.getWidth()-100, (int)r.getHeight()-100); SwingUtilities.invokeAndWait(() -> frame.dispose()); if (!c.equals(color)) { throw new RuntimeException("Color was " + c + " expected " + color); } } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); g.setColor(color); g.fillRect(0, 0, getSize().width, getSize().height); }; }