1 /*
2 * Copyright (c) 2015, 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 import java.awt.BorderLayout;
25 import java.awt.Canvas;
26 import java.awt.Color;
27 import java.awt.Frame;
28 import java.awt.Graphics;
29 import java.awt.Panel;
30 import java.awt.Rectangle;
31 import java.awt.Robot;
32 import java.awt.image.BufferedImage;
33 import javax.swing.UIManager;
34
35 /* @test
36 * @bug 8073320
37 * @summary Windows HiDPI support
38 * @author Alexander Scherbatiy
39 * @requires (os.family == "windows")
40 * @run main/othervm -Dsun.java2d.win.uiScaleX=3 -Dsun.java2d.win.uiScaleY=2
41 * HiDPIRobotScreenCaptureTest
42 */
43 public class HiDPIRobotScreenCaptureTest {
44
45 private static final Color[] COLORS = {
46 Color.GREEN, Color.BLUE, Color.ORANGE, Color.RED};
47
48 public static void main(String[] args) throws Exception {
49
50 try {
51 UIManager.setLookAndFeel(
52 "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
53 } catch (Exception e) {
54 return;
55 }
56
57 Frame frame = new Frame();
58 frame.setBounds(40, 30, 400, 300);
59 frame.setUndecorated(true);
60
61 Panel panel = new Panel(new BorderLayout());
62 Canvas canvas = new Canvas() {
63 @Override
64 public void paint(Graphics g) {
65 super.paint(g);
66 int w = getWidth();
67 int h = getHeight();
68 g.setColor(COLORS[0]);
69 g.fillRect(0, 0, w / 2, h / 2);
70 g.setColor(COLORS[1]);
71 g.fillRect(w / 2, 0, w / 2, h / 2);
72 g.setColor(COLORS[2]);
73 g.fillRect(0, h / 2, w / 2, h / 2);
74 g.setColor(COLORS[3]);
75 g.fillRect(w / 2, h / 2, w / 2, h / 2);
76 }
77 };
78
79 panel.add(canvas);
80 frame.add(panel);
81 frame.setVisible(true);
82 Robot robot = new Robot();
83 robot.waitForIdle();
84 Thread.sleep(200);
85
86 Rectangle rect = canvas.getBounds();
87 rect.setLocation(canvas.getLocationOnScreen());
88
89 BufferedImage image = robot.createScreenCapture(rect);
90 frame.dispose();
91
92 int w = image.getWidth();
93 int h = image.getHeight();
94
95 if (w != frame.getWidth() || h != frame.getHeight()) {
96 throw new RuntimeException("Wrong image size!");
97 }
98
99 if (image.getRGB(w / 4, h / 4) != COLORS[0].getRGB()) {
100 throw new RuntimeException("Wrong image color!");
101 }
102
103 if (image.getRGB(3 * w / 4, h / 4) != COLORS[1].getRGB()) {
104 throw new RuntimeException("Wrong image color!");
105 }
106
107 if (image.getRGB(w / 4, 3 * h / 4) != COLORS[2].getRGB()) {
108 throw new RuntimeException("Wrong image color!");
109 }
110
111 if (image.getRGB(3 * w / 4, 3 * h / 4) != COLORS[3].getRGB()) {
112 throw new RuntimeException("Wrong image color!");
113 }
114 }
115 }