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
24import java.awt.Color;
25import java.awt.Frame;
26import java.awt.Graphics;
27import java.awt.Graphics2D;
28import java.awt.Image;
29import java.awt.MediaTracker;
30import java.awt.Toolkit;
31import java.awt.image.BaseMultiResolutionImage;
32import java.awt.image.BufferedImage;
33import java.io.File;
34import javax.imageio.ImageIO;
35import javax.swing.GrayFilter;
36import java.awt.image.MultiResolutionImage;
37import 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 */
46public 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}
120