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
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22  */
23 
24 import java.awt.Dialog;
25 import java.awt.Frame;
26 import java.awt.Graphics;
27 import java.awt.Graphics2D;
28 import java.awt.geom.AffineTransform;
29 import javax.swing.UIManager;
30 
31 /*
32  * @test
33  * @key headful
34  * @bug 8137571
35  * @summary Linux HiDPI Graphics support
36  * @author Alexander Scherbatiy
37  * @requires (os.family == "linux" | os.family == "mac" | os.family == "freebsd" | os.family == "netbsd" | os.family == "openbsd")
38  * @run main/othervm -Dsun.java2d.uiScale.enabled=false
39  *                   -Dsun.java2d.uiScale=2
40  *                    HiDPIPropertiesUnixTest UISCALE_DISABLED
41  * @run main/othervm -Dsun.java2d.uiScale.enabled=true
42  *                   -Dsun.java2d.uiScale=3
43  *                    HiDPIPropertiesUnixTest UISCALE_3
44  * @run main/othervm -Dsun.java2d.uiScale=4
45  *                    HiDPIPropertiesUnixTest UISCALE_4
46  */
47 public class HiDPIPropertiesUnixTest {
48 
main(String[] args)49     public static void main(String[] args) throws Exception {
50 
51         UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
52 
53         String testCase = args[0];
54         switch (testCase) {
55             case "UISCALE_DISABLED":
56                 testScale(1.0, 1.0);
57                 break;
58             case "UISCALE_3":
59                 testScale(3.0, 3.0);
60                 break;
61             case "UISCALE_4":
62                 testScale(4.0, 4.0);
63                 break;
64             default:
65                 throw new RuntimeException("Unknown test case: " + testCase);
66         }
67     }
68 
testScale(double scaleX, double scaleY)69     private static void testScale(double scaleX, double scaleY) {
70 
71         Dialog dialog = new Dialog((Frame) null, true) {
72 
73             @Override
74             public void paint(Graphics g) {
75                 super.paint(g);
76                 AffineTransform tx = ((Graphics2D) g).getTransform();
77                 dispose();
78                 if (scaleX != tx.getScaleX() || scaleY != tx.getScaleY()) {
79                     throw new RuntimeException(String.format("Wrong scale:"
80                             + "[%f, %f] instead of [%f, %f].",
81                             tx.getScaleX(), tx.getScaleY(), scaleX, scaleY));
82                 }
83             }
84         };
85         dialog.setSize(200, 300);
86         dialog.setVisible(true);
87     }
88 }
89