1 /*
   2  * Copyright (c) 2014, 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.Graphics;
  27 import java.awt.Graphics2D;
  28 import java.awt.Panel;
  29 import java.awt.Rectangle;
  30 import java.awt.Robot;
  31 import java.awt.SplashScreen;
  32 import java.awt.Window;
  33 import java.awt.image.BufferedImage;
  34 import java.io.File;
  35 import javax.imageio.ImageIO;
  36 import sun.java2d.SunGraphics2D;
  37 
  38 /**
  39  * test
  40  * @bug 8043869
  41  * @author Alexander Scherbatiy
  42  * @summary [macosx] java -splash does not honor 2x hi dpi notation for retina
  43  * support
  44  * @run main MultiResolutionSplashTest GENERATE_IMAGES
  45  * @run main/othervm -splash:splash1.png MultiResolutionSplashTest TEST_SPLASH 0
  46  * @run main/othervm -splash:splash2 MultiResolutionSplashTest TEST_SPLASH 1
  47  * @run main/othervm -splash:splash3. MultiResolutionSplashTest TEST_SPLASH 2
  48  */
  49 public class MultiResolutionSplashTest {
  50 
  51     private static final int IMAGE_WIDTH = 300;
  52     private static final int IMAGE_HEIGHT = 200;
  53 
  54     private static final ImageInfo[] tests = {
  55         new ImageInfo("splash1.png", "splash1@2x.png", Color.BLUE, Color.GREEN),
  56         new ImageInfo("splash2", "splash2@2x", Color.WHITE, Color.BLACK),
  57         new ImageInfo("splash3.", "splash3@2x.", Color.YELLOW, Color.RED)
  58     };
  59 
  60     public static void main(String[] args) throws Exception {
  61 
  62         String test = args[0];
  63 
  64         switch (test) {
  65             case "GENERATE_IMAGES":
  66                 generateImages();
  67                 break;
  68             case "TEST_SPLASH":
  69                 int index = Integer.parseInt(args[1]);
  70                 testSplash(tests[index]);
  71                 break;
  72             default:
  73                 throw new RuntimeException("Unknown test: " + test);
  74         }
  75     }
  76 
  77     static void testSplash(ImageInfo test) throws Exception {
  78         SplashScreen splashScreen = SplashScreen.getSplashScreen();
  79 
  80         if (splashScreen == null) {
  81             throw new RuntimeException("Splash screen is not shown!");
  82         }
  83 
  84         Graphics2D g = splashScreen.createGraphics();
  85         Rectangle splashBounds = splashScreen.getBounds();
  86         int screenX = (int) splashBounds.getCenterX();
  87         int screenY = (int) splashBounds.getCenterY();
  88 
  89         Robot robot = new Robot();
  90         Color splashScreenColor = robot.getPixelColor(screenX, screenY);
  91 
  92         float scaleFactor = getScaleFactor();
  93         Color testColor = (1 < scaleFactor) ? test.color2x : test.color1x;
  94 
  95         if (!testColor.equals(splashScreenColor)) {
  96             throw new RuntimeException(
  97                     "Image with wrong resolution is used for splash screen!");
  98         }
  99     }
 100 
 101     static float getScaleFactor() {
 102 
 103         final Dialog dialog = new Dialog((Window) null);
 104         dialog.setSize(100, 100);
 105         dialog.setModal(true);
 106         final float[] scaleFactors = new float[1];
 107         Panel panel = new Panel() {
 108 
 109             @Override
 110             public void paint(Graphics g) {
 111                 float scaleFactor = 1;
 112                 if (g instanceof SunGraphics2D) {
 113                     scaleFactor = ((SunGraphics2D) g).surfaceData.getDefaultScale();
 114                 }
 115                 scaleFactors[0] = scaleFactor;
 116                 dialog.setVisible(false);
 117             }
 118         };
 119 
 120         dialog.add(panel);
 121         dialog.setVisible(true);
 122         dialog.dispose();
 123 
 124         return scaleFactors[0];
 125     }
 126 
 127     static void generateImages() throws Exception {
 128         for (ImageInfo test : tests) {
 129             generateImage(test.name1x, test.color1x, 1);
 130             generateImage(test.name2x, test.color2x, 2);
 131         }
 132     }
 133 
 134     static void generateImage(String name, Color color, int scale) throws Exception {
 135         File file = new File(name);
 136         if (file.exists()) {
 137             return;
 138         }
 139         BufferedImage image = new BufferedImage(scale * IMAGE_WIDTH, scale * IMAGE_HEIGHT,
 140                 BufferedImage.TYPE_INT_RGB);
 141         Graphics g = image.getGraphics();
 142         g.setColor(color);
 143         g.fillRect(0, 0, scale * IMAGE_WIDTH, scale * IMAGE_HEIGHT);
 144         ImageIO.write(image, "png", file);
 145     }
 146 
 147     static class ImageInfo {
 148 
 149         final String name1x;
 150         final String name2x;
 151         final Color color1x;
 152         final Color color2x;
 153 
 154         public ImageInfo(String name1x, String name2x, Color color1x, Color color2x) {
 155             this.name1x = name1x;
 156             this.name2x = name2x;
 157             this.color1x = color1x;
 158             this.color2x = color2x;
 159         }
 160     }
 161 }