--- /dev/null 2015-10-22 06:49:40.033425512 -0400 +++ new/test/java/awt/Robot/HiDPIScreenCapture/HiDPIRobotScreenCaptureTest.java 2015-10-22 10:07:34.215072617 -0400 @@ -0,0 +1,130 @@ +/* + * Copyright (c) 2015, 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. + */ + +import java.awt.BorderLayout; +import java.awt.Canvas; +import java.awt.Color; +import java.awt.Frame; +import java.awt.Graphics; +import java.awt.Panel; +import java.awt.Rectangle; +import java.awt.Robot; +import java.awt.image.BufferedImage; +import javax.imageio.ImageIO; +import javax.swing.UIManager; + +/* @test + * @bug 8073320 8137571 + * @summary Windows and Linux HiDPI Graphics support + * @author Alexander Scherbatiy + * @requires (os.family == "windows" | os.family == "linux") + * @run main/othervm -Dsun.java2d.uiScale=2 HiDPIRobotScreenCaptureTest + */ +public class HiDPIRobotScreenCaptureTest { + + private static final Color[] COLORS = { + Color.GREEN, Color.BLUE, Color.ORANGE, Color.RED}; + + private static final String[] SUPPORTED_LAFS = { + "com.sun.java.swing.plaf.windows.WindowsLookAndFeel", + "com.sun.java.swing.plaf.gtk.GTKLookAndFeel" + }; + + public static void main(String[] args) throws Exception { + + if (!setSupportedLAF()) { + return; + } + + Frame frame = new Frame(); + frame.setBounds(10, 20, 200, 150); + frame.setUndecorated(true); + + Panel panel = new Panel(new BorderLayout()); + Canvas canvas = new Canvas() { + @Override + public void paint(Graphics g) { + super.paint(g); + int w = getWidth(); + int h = getHeight(); + g.setColor(COLORS[0]); + g.fillRect(0, 0, w / 2, h / 2); + g.setColor(COLORS[1]); + g.fillRect(w / 2, 0, w / 2, h / 2); + g.setColor(COLORS[2]); + g.fillRect(0, h / 2, w / 2, h / 2); + g.setColor(COLORS[3]); + g.fillRect(w / 2, h / 2, w / 2, h / 2); + } + }; + + panel.add(canvas); + frame.add(panel); + frame.setVisible(true); + Robot robot = new Robot(); + robot.waitForIdle(); + Thread.sleep(200); + + Rectangle rect = canvas.getBounds(); + rect.setLocation(canvas.getLocationOnScreen()); + + BufferedImage image = robot.createScreenCapture(rect); + frame.dispose(); + + int w = image.getWidth(); + int h = image.getHeight(); + + if (w != frame.getWidth() || h != frame.getHeight()) { + throw new RuntimeException("Wrong image size!"); + } + + if (image.getRGB(w / 4, h / 4) != COLORS[0].getRGB()) { + throw new RuntimeException("Wrong image color!"); + } + + if (image.getRGB(3 * w / 4, h / 4) != COLORS[1].getRGB()) { + throw new RuntimeException("Wrong image color!"); + } + + if (image.getRGB(w / 4, 3 * h / 4) != COLORS[2].getRGB()) { + throw new RuntimeException("Wrong image color!"); + } + + if (image.getRGB(3 * w / 4, 3 * h / 4) != COLORS[3].getRGB()) { + throw new RuntimeException("Wrong image color!"); + } + } + + private static boolean setSupportedLAF() { + + for (String supportedLAF : SUPPORTED_LAFS) { + try { + UIManager.setLookAndFeel(supportedLAF); + return true; + } catch (Exception ignored) { + } + } + + return false; + } +} \ No newline at end of file