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/*
* Copyright (c) 2015, 2017, 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.swing.UIManager;
/**
* @test
* @key headful
* @bug 8073320
* @summary Windows HiDPI support
* @author Alexander Scherbatiy
* @requires (os.family == "windows")
* @run main/othervm -Dsun.java2d.win.uiScaleX=3 -Dsun.java2d.win.uiScaleY=2
* HiDPIRobotScreenCaptureTest
*/
public class HiDPIRobotScreenCaptureTest {
private static final Color[] COLORS = {
Color.GREEN, Color.BLUE, Color.ORANGE, Color.RED};
public static void main(String[] args) throws Exception {
try {
UIManager.setLookAndFeel(
"com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
} catch (Exception e) {
return;
}
Frame frame = new Frame();
frame.setBounds(40, 30, 400, 300);
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!");
}
}
}
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