LabelRepaint.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2013, 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.EventQueue;
25import java.awt.Frame;
26import java.awt.Graphics;
27import java.awt.Label;
28
29/**
30 * @test
31 * @key headful
32 * @bug 7090424
33 * @author Sergey Bylokhov
34 */
35public final class LabelRepaint extends Label {
36
37    public static void main(final String[] args) {
38        for (int i = 0; i < 10; ++i) {
39            final Frame frame = new Frame();
40            frame.setSize(300, 300);
41            frame.setLocationRelativeTo(null);
42            LabelRepaint label = new LabelRepaint();
43            frame.add(label);
44            frame.setVisible(true);
45            sleep();
46            label.test();
47            frame.dispose();
48        }
49    }
50
51    private static void sleep() {
52        try {
53            Thread.sleep(2000);
54        } catch (InterruptedException ignored) {
55        }
56    }
57
58    @Override
59    public void paint(final Graphics g) {
60        super.paint(g);
61        if (!EventQueue.isDispatchThread()) {
62            throw new RuntimeException("Wrong thread");
63        }
64        test();
65    }
66
67    void test() {
68        setAlignment(getAlignment());
69
70        setText("");
71        setText(null);
72        setText(getText());
73
74        setFont(null);
75        setFont(getFont());
76
77        setBackground(null);
78        setBackground(getBackground());
79
80        setForeground(null);
81        setForeground(getForeground());
82
83        setEnabled(isEnabled());
84    }
85}
86