bug6989617.java revision 11018:66682f651425 
1/*
2 * Copyright (c) 2011, 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/* @test
25   @bug 6989617
26   @summary Enable JComponent to control repaintings of its children
27   @author Alexander Potochkin
28   @run main bug6989617
29*/
30
31import javax.swing.*;
32import java.awt.*;
33
34public class bug6989617 {
35    private static MyPanel panel;
36    private static JButton button;
37
38    public static void main(String... args) throws Exception {
39        Robot robot = new Robot();
40        SwingUtilities.invokeAndWait(new Runnable() {
41            public void run() {
42                JFrame frame = new JFrame();
43                frame. setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
44                panel = new MyPanel();
45
46                button = new JButton("Hello");
47                panel.add(button);
48                frame.add(panel);
49
50                frame.setSize(200, 300);
51                frame.setVisible(true);
52            }
53        });
54        // Testing the panel as a painting origin,
55        // the panel.paintImmediately() must be triggered
56        // when button.repaint() is called
57        robot.waitForIdle();
58        SwingUtilities.invokeAndWait(new Runnable() {
59            public void run() {
60                panel.resetPaintRectangle();
61                button.repaint();
62            }
63        });
64        robot.waitForIdle();
65        SwingUtilities.invokeAndWait(new Runnable() {
66            public void run() {
67                Rectangle pr = panel.getPaintRectangle();
68                if (!pr.getSize().equals(button.getSize())) {
69                    throw new RuntimeException("wrong size of the dirty area");
70                }
71                if (!pr.getLocation().equals(button.getLocation())) {
72                    throw new RuntimeException("wrong location of the dirty area");
73                }
74            }
75        });
76        // Testing the panel as NOT a painting origin
77        // the panel.paintImmediately() must NOT be triggered
78        // when button.repaint() is called
79        robot.waitForIdle();
80        SwingUtilities.invokeAndWait(new Runnable() {
81            public void run() {
82                panel.resetPaintRectangle();
83                panel.setPaintingOrigin(false);
84                if (panel.getPaintRectangle() != null) {
85                    throw new RuntimeException("paint rectangle is not null");
86                }
87                button.repaint();
88            }
89        });
90        robot.waitForIdle();
91        SwingUtilities.invokeAndWait(new Runnable() {
92            public void run() {
93                if(panel.getPaintRectangle() != null) {
94                    throw new RuntimeException("paint rectangle is not null");
95                }
96                System.out.println("Test passed...");
97            }
98        });
99    }
100
101    static class MyPanel extends JPanel {
102        private boolean isPaintingOrigin = true;
103        private Rectangle paintRectangle;
104
105        {
106            setLayout(new GridBagLayout());
107        }
108
109        public boolean isPaintingOrigin() {
110            return isPaintingOrigin;
111        }
112
113        public void setPaintingOrigin(boolean paintingOrigin) {
114            isPaintingOrigin = paintingOrigin;
115        }
116
117        public void paintImmediately(int x, int y, int w, int h) {
118            super.paintImmediately(x, y, w, h);
119            paintRectangle = new Rectangle(x, y, w, h);
120        }
121
122        public Rectangle getPaintRectangle() {
123            return paintRectangle == null? null: new Rectangle(paintRectangle);
124        }
125
126        public void resetPaintRectangle() {
127            this.paintRectangle = null;
128        }
129    }
130}
131