ScrollBarThumbVisibleTest.java revision 17565:b762aafa34e3 
1/*
2 * Copyright (c) 2015, 2017, 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/**
25 * @test
26 * @key headful
27 * @bug 8134828
28 * @summary Scrollbar thumb disappears with Nimbus L&F
29 * @author Semyon Sadetsky
30 */
31
32import javax.swing.*;
33import java.awt.*;
34
35public class ScrollBarThumbVisibleTest
36{
37    private static JFrame frame;
38    private static Point point;
39    private static JScrollBar bar;
40
41    public static void main(String[] args) throws Exception {
42        for (UIManager.LookAndFeelInfo info : UIManager
43                .getInstalledLookAndFeels()) {
44            if ("Nimbus".equals(info.getName())) {
45                try {
46                    UIManager.setLookAndFeel(info.getClassName());
47                } catch (Exception ex) {
48                }
49                break;
50            }
51        }
52        try {
53            SwingUtilities.invokeAndWait(new Runnable() {
54                public void run() {
55                    frame = new JFrame();
56                    frame.setUndecorated(true);
57                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
58                    setup(frame);
59                }
60            });
61            final Robot robot = new Robot();
62            robot.delay(200);
63            robot.waitForIdle();
64            SwingUtilities.invokeAndWait(new Runnable() {
65                @Override
66                public void run() {
67                    point = bar.getLocationOnScreen();
68                }
69            });
70            Color color1 = robot.getPixelColor(point.x + 48, point.y + 55);
71            Color color2 = robot.getPixelColor(point.x + 48, point.y + 125);
72            System.out.println(color1);
73            System.out.println(color2);
74           if (color1.equals(color2)) {
75                throw new RuntimeException("Thump is not visible");
76            }
77        } finally {
78            SwingUtilities.invokeAndWait(new Runnable() {
79                @Override
80                public void run() {
81                    if (frame != null) { frame.dispose(); }
82                }
83            });
84        }
85        System.out.println("ok");
86    }
87
88    static void setup(JFrame frame) {
89        bar = new JScrollBar(Adjustable.VERTICAL, 500, 0, 0, 1000);
90        frame.getContentPane().add(bar);
91        frame.setSize(50, 250);
92        frame.setLocation(100, 100);
93        frame.setVisible(true);
94    }
95}
96