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 
  34 import java.awt.GraphicsConfiguration;
  35 import java.awt.GraphicsEnvironment;
  36 import java.awt.Toolkit;
  37 import java.awt.geom.AffineTransform;
  38 
  39 public 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 }