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.Frame;

    26 import java.awt.Graphics;

    27 import java.awt.Graphics2D;

    28 import java.awt.Image;

    29 import java.awt.MediaTracker;

    30 import java.awt.Toolkit;

    31 import java.awt.image.BaseMultiResolutionImage;

    32 import java.awt.image.BufferedImage;

    33 import java.io.File;

    34 import javax.imageio.ImageIO;

    35 import javax.swing.GrayFilter;

    36 import java.awt.image.MultiResolutionImage;

    37 import javax.swing.JLabel;

    38 

    39 /**

    40  * @test

    41  * @bug 8156182

    42  * @summary [macosx] HiDPI/Retina icons do not work for disabled

    43  * JButton/JMenuItem etc.

    44  * @run main/othervm -Dsun.java2d.uiScale=2 MultiResolutionDisabledImageTest

    45  */

    46 public class MultiResolutionDisabledImageTest {

    47 

    48     private static final String IMAGE_NAME_1X = "image.png";

    49     private static final String IMAGE_NAME_2X = "image@2x.png";

    50     private static final int IMAGE_SIZE = 100;

    51     private static final Color COLOR_1X = Color.GREEN;

    52     private static final Color COLOR_2X = Color.BLUE;

    53 

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

    55 

    56         Image baseMRImage = new BaseMultiResolutionImage(createImage(1),

    57                                                          createImage(2));

    58         testMRDisabledImage(baseMRImage);

    59 

    60         saveImages();

    61         Image toolkitMRImage = Toolkit.getDefaultToolkit().getImage(IMAGE_NAME_1X);

    62 

    63         if (toolkitMRImage instanceof MultiResolutionImage) {

    64             testMRDisabledImage(toolkitMRImage);

    65         }

    66     }

    67 

    68     private static void testMRDisabledImage(Image image) throws Exception {

    69 

    70         Image disabledImage = GrayFilter.createDisabledImage(image);

    71         MediaTracker mediaTracker = new MediaTracker(new JLabel());

    72         mediaTracker.addImage(disabledImage, 0);

    73         mediaTracker.waitForID(0);

    74 

    75         BufferedImage buffImage = new BufferedImage(IMAGE_SIZE,

    76                                                     IMAGE_SIZE,

    77                                                     BufferedImage.TYPE_INT_RGB);

    78 

    79         int x = IMAGE_SIZE / 2;

    80         int y = IMAGE_SIZE / 2;

    81 

    82         Graphics2D g = buffImage.createGraphics();

    83 

    84         g.scale(1, 1);

    85         g.drawImage(disabledImage, 0, 0, null);

    86         int rgb1x = buffImage.getRGB(x, y);

    87 

    88         g.scale(2, 2);

    89         g.drawImage(disabledImage, 0, 0, null);

    90         int rgb2x = buffImage.getRGB(x, y);

    91 

    92         g.dispose();

    93 

    94         if (rgb1x == rgb2x) {

    95             throw new RuntimeException("Disabled image is the same for the base"

    96                     + "image and the resolution variant");

    97         }

    98 

    99     }

   100 

   101     private static BufferedImage createImage(int scale) throws Exception {

   102         BufferedImage image = new BufferedImage(scale * 200, scale * 300,

   103                                                 BufferedImage.TYPE_INT_RGB);

   104         Graphics g = image.createGraphics();

   105         g.setColor(scale == 1 ? COLOR_1X : COLOR_2X);

   106         g.fillRect(0, 0, scale * 200, scale * 300);

   107         g.dispose();

   108         return image;

   109     }

   110 

   111     private static void saveImages() throws Exception {

   112         saveImage(createImage(1), IMAGE_NAME_1X);

   113         saveImage(createImage(2), IMAGE_NAME_2X);

   114     }

   115 

   116     private static void saveImage(BufferedImage image, String name) throws Exception {

   117         ImageIO.write(image, "png", new File(name));

   118     }

   119 }