1/*
2 * Copyright (c) 2010, 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
24import java.awt.*;
25import javax.swing.*;
26import java.awt.image.BufferedImage;
27
28/*
29 * @test
30 * @key headful
31 * @summary Check if a per-pixel translucent window shows up with correct translucency
32 * @author mrkam
33 * @library ../../../../lib/testlibrary
34 * @build Common ExtendedRobot
35 * @run main PerPixelTranslucentCanvas
36 */
37
38public class PerPixelTranslucentCanvas extends Common {
39
40    JPanel center;
41    Color OVAL_COLOR = Color.BLUE;
42
43    public static void main(String[] ignored) throws Exception {
44        FG_COLOR = new Color(200, 0, 0, 100);
45        BG_COLOR = Color.GREEN;
46        for (Class<Window> windowClass: WINDOWS_TO_TEST)
47            new PerPixelTranslucentCanvas(windowClass).doTest();
48    }
49
50    public PerPixelTranslucentCanvas(Class windowClass) throws Exception {
51        super(windowClass);
52    }
53
54    @Override
55    public void createSwingComponents() {
56        Container contentPane = RootPaneContainer.class.cast(window).getContentPane();
57        BorderLayout bl = new BorderLayout(10, 10);
58        contentPane.setLayout(bl);
59
60        JLabel label = new JLabel("North", new ImageIcon(
61                new BufferedImage(30, 30, BufferedImage.TYPE_INT_RGB)), SwingConstants.CENTER);
62        contentPane.add(label, BorderLayout.NORTH);
63
64        JButton button = new JButton("West");
65        contentPane.add(button, BorderLayout.WEST);
66
67        center = new JPanel() {
68            @Override
69            public void paint(Graphics g) {
70                g.setColor(OVAL_COLOR);
71                g.fillOval(0, 0, getWidth(), getHeight());
72            }
73        };
74        contentPane.add(center, BorderLayout.CENTER);
75
76        JTextField jTextField = new JTextField("South");
77        contentPane.add(jTextField, BorderLayout.SOUTH);
78    }
79
80    @Override
81    public void doTest() throws Exception {
82        robot.waitForIdle(delay);
83
84        Rectangle bounds = center.getBounds();
85        Point loc = center.getLocationOnScreen();
86
87        final int x = loc.x + bounds.width / 2;
88        final int y = loc.y + bounds.height / 2;
89
90        Color color = robot.getPixelColor(x, y);
91        if (OVAL_COLOR.getRGB() != color.getRGB())
92            throw new RuntimeException("bounds = " + bounds + "\n" +
93                    "loc = " + loc + "\n" +
94                    "background loc = " + background.getX() + ", " + background.getY() + "\n" +
95                    "so middle point over background is " + (x - background.getX()) + ", " + (y - background.getY()) + "\n" +
96                    "Oval is not opaque in the middle point (" + x + ", " + y + ", " + color + ")");
97
98        color = robot.getPixelColor(loc.x - 5, loc.y - 5);
99        if (FG_COLOR.getRGB() == color.getRGB())
100            throw new RuntimeException("Background is not translucent (" + color + ")");
101
102        EventQueue.invokeAndWait(this::dispose);
103        robot.waitForIdle();
104    }
105}
106