NormalizingTransformTest.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2012, 2016, 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/**
25 * @test
26 * @key headful
27 * @bug 6373505
28 * @summary Tests that the result of Toolkit.getScreenResolution() is
29 * consistent with GraphicsConfiguration.getNormalizingTransform().
30 * @author Dmitri.Trembovetski@Sun.COM: area=GraphicsConfiguration
31 * @run main NormalizingTransformTest
32 */
33
34import java.awt.GraphicsConfiguration;
35import java.awt.GraphicsEnvironment;
36import java.awt.Toolkit;
37import java.awt.geom.AffineTransform;
38
39public class NormalizingTransformTest {
40
41    public static void main(String[] args) {
42        GraphicsConfiguration gc =
43            GraphicsEnvironment.getLocalGraphicsEnvironment().
44                getDefaultScreenDevice().getDefaultConfiguration();
45        AffineTransform normTransform = gc.getNormalizingTransform();
46        int dpiX = Toolkit.getDefaultToolkit().getScreenResolution();
47        int normDpiX = (int)(normTransform.getScaleX() * 72.0);
48        if (dpiX != normDpiX) {
49            throw new RuntimeException(
50                "Test FAILED. Toolkit.getScreenResolution()=" + dpiX +
51                " GraphicsConfiguration.getNormalizingTransform()="+normDpiX);
52        }
53        System.out.println("Test PASSED. DPI="+normDpiX);
54    }
55
56}
57