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