1 /*

     2  * Copyright (c) 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 import java.awt.Color;

    25 import java.awt.Dialog;

    26 import java.awt.Frame;

    27 import java.awt.Graphics;

    28 import java.awt.Graphics2D;

    29 import java.awt.Panel;

    30 import java.awt.Rectangle;

    31 import java.awt.Robot;

    32 import java.awt.SplashScreen;

    33 import java.awt.TextField;

    34 import java.awt.Window;

    35 import java.awt.event.KeyEvent;

    36 import java.awt.image.BufferedImage;

    37 import java.io.BufferedReader;

    38 import java.io.File;

    39 import java.io.InputStreamReader;

    40 import java.util.ArrayList;

    41 import java.util.HashMap;

    42 import java.util.List;

    43 import java.util.Map;

    44 import javax.imageio.ImageIO;

    45 

    46 /**

    47  * @test @bug 8145174

    48  * @summary HiDPI splash screen support on Linux

    49  * @modules java.desktop/sun.java2d

    50  * @run main UnixMultiResolutionSplashTest

    51  */

    52 public class UnixMultiResolutionSplashTest {

    53 

    54     private static final int IMAGE_WIDTH = 300;

    55     private static final int IMAGE_HEIGHT = 200;

    56     private static int inx = 0;

    57     private static final ImageInfo[] tests = {

    58         new ImageInfo("splash1.png", "splash1.java-scale2x.png", Color.BLUE, Color.GREEN),

    59         new ImageInfo("splash2", "splash2.java-scale2x", Color.WHITE, Color.BLACK),

    60         new ImageInfo("splash3.", "splash3.java-scale2x.", Color.YELLOW, Color.RED)

    61     };

    62 

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

    64 

    65         if (args.length == 0) {

    66             generateImages();

    67             for (ImageInfo test : tests) {

    68                 createChildProcess(test);

    69             }

    70         } else {

    71             int index = Integer.parseInt(args[0]);

    72             testSplash(tests[index]);

    73         }

    74     }

    75 

    76     static void createChildProcess(ImageInfo test) {

    77         String javaPath = System.getProperty("java.home");

    78         File file = new File(test.name1x);

    79         String classPathDir = System.getProperty("java.class.path");

    80         Map<String, String> env = new HashMap<String, String>();

    81         env.put("GDK_SCALE", "2");

    82         int exitValue = doExec(env, javaPath + File.separator + "bin" + File.separator

    83                 + "java", "-splash:" + file.getAbsolutePath(), "-cp",

    84                 classPathDir, "UnixMultiResolutionSplashTest", String.valueOf(inx++));

    85         if (exitValue != 0) {

    86             throw new RuntimeException("Test Failed");

    87         }

    88     }

    89 

    90     static void testSplash(ImageInfo test) throws Exception {

    91         SplashScreen splashScreen = SplashScreen.getSplashScreen();

    92         if (splashScreen == null) {

    93             throw new RuntimeException("Splash screen is not shown!");

    94         }

    95         Graphics2D g = splashScreen.createGraphics();

    96         Rectangle splashBounds = splashScreen.getBounds();

    97         int screenX = (int) splashBounds.getCenterX();

    98         int screenY = (int) splashBounds.getCenterY();

    99         System.out.println(screenX);

   100         System.out.println(screenY);

   101         Robot robot = new Robot();

   102         Color splashScreenColor = robot.getPixelColor(screenX, screenY);

   103 

   104         float scaleFactor = getScaleFactor();

   105         Color testColor = (1 < scaleFactor) ? test.color2x : test.color1x;

   106         if (!compare(testColor, splashScreenColor)) {

   107             throw new RuntimeException(

   108                     "Image with wrong resolution is used for splash screen!");

   109         }

   110     }

   111 

   112     static int doExec(Map<String, String> envToSet, String... cmds) {

   113         Process p = null;

   114         ProcessBuilder pb = new ProcessBuilder(cmds);

   115         Map<String, String> env = pb.environment();

   116         for (String cmd : cmds) {

   117             System.out.print(cmd + " ");

   118         }

   119         System.out.println();

   120         if (envToSet != null) {

   121             env.putAll(envToSet);

   122         }

   123         BufferedReader rdr = null;

   124         try {

   125             List<String> outputList = new ArrayList<>();

   126             pb.redirectErrorStream(true);

   127             p = pb.start();

   128             rdr = new BufferedReader(new InputStreamReader(p.getInputStream()));

   129             String in = rdr.readLine();

   130             while (in != null) {

   131                 outputList.add(in);

   132                 in = rdr.readLine();

   133                 System.out.println(in);

   134             }

   135             p.waitFor();

   136             p.destroy();

   137         } catch (Exception ex) {

   138             ex.printStackTrace();

   139         }

   140         return p.exitValue();

   141     }

   142 

   143     static void testFocus() throws Exception {

   144 

   145         System.out.println("Focus Test!");

   146         Robot robot = new Robot();

   147         robot.setAutoDelay(50);

   148         Frame frame = new Frame();

   149         frame.setSize(100, 100);

   150         String test = "123";

   151         TextField textField = new TextField(test);

   152         textField.selectAll();

   153         frame.add(textField);

   154         frame.setVisible(true);

   155         robot.waitForIdle();

   156 

   157         robot.keyPress(KeyEvent.VK_A);

   158         robot.keyRelease(KeyEvent.VK_A);

   159         robot.keyPress(KeyEvent.VK_B);

   160         robot.keyRelease(KeyEvent.VK_B);

   161         robot.waitForIdle();

   162 

   163         frame.dispose();

   164         if (!textField.getText().equals("ab")) {

   165             throw new RuntimeException("Focus is lost!");

   166         }

   167     }

   168 

   169     static boolean compare(Color c1, Color c2) {

   170         return compare(c1.getRed(), c2.getRed())

   171                 && compare(c1.getGreen(), c2.getGreen())

   172                 && compare(c1.getBlue(), c2.getBlue());

   173     }

   174 

   175     static boolean compare(int n, int m) {

   176         return Math.abs(n - m) <= 50;

   177     }

   178 

   179     static float getScaleFactor() {

   180 

   181         final Dialog dialog = new Dialog((Window) null);

   182         dialog.setSize(100, 100);

   183         dialog.setModal(true);

   184         float[] scaleFactors = new float[1];

   185         Panel panel = new Panel() {

   186 

   187             @Override

   188             public void paint(Graphics g) {

   189                 String scaleStr = System.getenv("GDK_SCALE");

   190                 if (scaleStr != null && !scaleStr.equals("")) {

   191                     try {

   192                         scaleFactors[0] = Float.valueOf(scaleStr);

   193                     } catch (NumberFormatException ex) {

   194                         scaleFactors[0] = 1.0f;

   195                     }

   196                 }

   197                 dialog.setVisible(false);

   198             }

   199         };

   200         dialog.add(panel);

   201         dialog.setVisible(true);

   202         dialog.dispose();

   203         return scaleFactors[0];

   204     }

   205 

   206     static void generateImages() throws Exception {

   207         for (ImageInfo test : tests) {

   208             generateImage(test.name1x, test.color1x, 1);

   209             generateImage(test.name2x, test.color2x, 2);

   210         }

   211     }

   212 

   213     static void generateImage(String name, Color color, int scale) throws Exception {

   214         File file = new File(name);

   215         if (file.exists()) {

   216             return;

   217         }

   218         BufferedImage image = new BufferedImage(scale * IMAGE_WIDTH, scale * IMAGE_HEIGHT,

   219                 BufferedImage.TYPE_INT_RGB);

   220         Graphics g = image.getGraphics();

   221         g.setColor(color);

   222         g.fillRect(0, 0, scale * IMAGE_WIDTH, scale * IMAGE_HEIGHT);

   223         ImageIO.write(image, "png", file);

   224     }

   225 

   226     static class ImageInfo {

   227 

   228         final String name1x;

   229         final String name2x;

   230         final Color color1x;

   231         final Color color2x;

   232 

   233         public ImageInfo(String name1x, String name2x, Color color1x, Color color2x) {

   234             this.name1x = name1x;

   235             this.name2x = name2x;

   236             this.color1x = color1x;

   237             this.color2x = color2x;

   238         }

   239     }

   240 }

   241