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 
--- EOF ---