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.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 /* @test

    32  * @bug 8137571

    33  * @summary Linux HiDPI Graphics support

    34  * @author Alexander Scherbatiy

    35  * @requires (os.family == "linux")

    36  * @run main/othervm -Dsun.java2d.uiScale.enabled=false

    37  *                   -Dsun.java2d.uiScale=2

    38  *                    HiDPIPropertiesLinuxTest UISCALE_DISABLED

    39  *                    HiDPIPropertiesTest UISCALE_DISABLED

    40  * @run main/othervm -Dsun.java2d.uiScale.enabled=true

    41  *                   -Dsun.java2d.uiScale=3

    42  *                    HiDPIPropertiesLinuxTest UISCALE_3

    43  * @run main/othervm -Dsun.java2d.uiScale=4

    44  *                    HiDPIPropertiesLinuxTest UISCALE_4

    45  */

    46 public class HiDPIPropertiesLinuxTest {

    47 

    48     public static void main(String[] args) throws Exception {

    49 

    50         try {

    51             UIManager.setLookAndFeel(

    52                     "com.sun.java.swing.plaf.gtk.GTKLookAndFeel");

    53         } catch (Exception e) {

    54             return;

    55         }

    56 

    57         String testCase = args[0];

    58         switch (testCase) {

    59             case "UISCALE_DISABLED":

    60                 testScale(1.0, 1.0);

    61                 break;

    62             case "UISCALE_3":

    63                 testScale(3.0, 3.0);

    64                 break;

    65             case "UISCALE_4":

    66                 testScale(4.0, 4.0);

    67                 break;

    68             default:

    69                 throw new RuntimeException("Unknown test case: " + testCase);

    70         }

    71     }

    72 

    73     private static void testScale(double scaleX, double scaleY) {

    74 

    75         Dialog dialog = new Dialog((Frame) null, true) {

    76 

    77             @Override

    78             public void paint(Graphics g) {

    79                 super.paint(g);

    80                 AffineTransform tx = ((Graphics2D) g).getTransform();

    81                 dispose();

    82                 if (scaleX != tx.getScaleX() || scaleY != tx.getScaleY()) {

    83                     throw new RuntimeException(String.format("Wrong scale:"

    84                             + "[%f, %f] instead of [%f, %f].",

    85                             tx.getScaleX(), tx.getScaleY(), scaleX, scaleY));

    86                 }

    87             }

    88         };

    89         dialog.setSize(200, 300);

    90         dialog.setVisible(true);

    91     }

    92 }