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
24 /*
25 * @test
26 * @key headful
27 * @bug 8139581
28 * @summary AWT components are not drawn after removal and addition to a container
29 * @author Anton Litvinov
30 */
31
32 import java.awt.Button;
33 import java.awt.Color;
34 import java.awt.Canvas;
35 import java.awt.Frame;
36 import java.awt.Graphics;
37 import java.awt.Panel;
38 import java.util.ArrayList;
39
40 public class ComponentIsNotDrawnAfterRemoveAddTest {
41 private final Frame frame;
42 private final Panel panel;
43 private final ArrayList<Testable> compList = new ArrayList<Testable>();
44
45 public ComponentIsNotDrawnAfterRemoveAddTest() {
46 frame = new Frame("ComponentIsNotDrawnAfterRemoveAddTest");
47 frame.setSize(500, 500);
48 frame.setLocation(200, 200);
49 frame.setLayout(null);
50 frame.setBackground(Color.RED);
51
52 panel = new Panel();
53 panel.setLayout(null);
54 panel.setBounds(25, 100, 455, 295);
55 panel.setBackground(Color.GREEN);
56
57 for (int i = 0; i < 10; i++) {
58 TestCanvas canv1 = new TestCanvas();
59 canv1.setBounds(i * 45 + 5, 15, 30 + i, 30 + i);
60 panel.add(canv1);
61 compList.add(canv1);
62
63 TestButton btn1 = new TestButton();
64 btn1.setBounds(i * 45 + 5, 60, 30 + i, 30 + i);
65 panel.add(btn1);
66 compList.add(btn1);
67
68 TestCanvas canv2 = new TestCanvas();
69 canv2.setBounds(i * 45 + 5, 105, 30 + i, 30 + i);
70 panel.add(canv2);
71 compList.add(canv2);
72
73 TestButton btn2 = new TestButton();
74 btn2.setBounds(i * 45 + 5, 150, 30 + i, 30 + i);
75 panel.add(btn2);
76 compList.add(btn2);
77
78 TestCanvas canv3 = new TestCanvas();
79 canv3.setBounds(i * 45 + 5, 195, 30 + i, 30 + i);
80 panel.add(canv3);
81 compList.add(canv3);
82
83 TestButton btn3 = new TestButton();
84 btn3.setBounds(i * 45 + 5, 240, 30 + i, 30 + i);
85 panel.add(btn3);
86 compList.add(btn3);
87 }
88
89 frame.add(panel);
90 frame.setVisible(true);
91 }
92
93 private void runTest() {
94 try {
95 doSleep(1500);
96 checkTestableComponents();
97
98 for (int i = 0; i < 5; i++) {
99 System.err.println(String.format("Test iteration #%d:", i));
100
101 frame.remove(panel);
102 frame.invalidate();
103 frame.validate();
104 frame.add(panel);
105
106 doSleep(1500);
107 checkTestableComponents();
108 }
109 } finally {
110 frame.dispose();
111 }
112 }
113
114 private void doSleep(long millis) {
115 try {
116 Thread.sleep(millis);
117 } catch (InterruptedException ie) {
118 ie.printStackTrace();
119 }
120 }
121
122 private void checkTestableComponents() throws RuntimeException {
123 int notDrawnCompsCount = 0;
124 for (Testable comp : compList) {
125 if (!comp.wasPaintCalled()) {
126 notDrawnCompsCount++;
127 } else {
128 comp.resetPaintCalledFlag();
129 }
130 }
131 if (notDrawnCompsCount > 0) {
132 throw new RuntimeException(String.format(
133 "'paint' method of %d components was not called.", notDrawnCompsCount));
134 }
135 }
136
137 private interface Testable {
138 boolean wasPaintCalled();
139 void resetPaintCalledFlag();
140 }
141
142 private static class TestCanvas extends Canvas implements Testable {
143 private volatile boolean paintWasCalled = false;
144
145 @Override
146 public void paint(Graphics g) {
147 paintWasCalled = true;
148 super.paint(g);
149 g.setColor(Color.BLUE);
150 g.fillRect(0, 0, getWidth(), getHeight());
151 }
152
153 @Override
154 public boolean wasPaintCalled() {
155 return paintWasCalled;
156 }
157
158 @Override
159 public void resetPaintCalledFlag() {
160 paintWasCalled = false;
161 }
162 }
163
164 private static class TestButton extends Button implements Testable {
165 private volatile boolean paintWasCalled = false;
166
167 @Override
168 public void paint(Graphics g) {
169 paintWasCalled = true;
170 super.paint(g);
171 g.setColor(Color.YELLOW);
172 g.fillRect(0, 0, 15, 15);
173 }
174
175 @Override
176 public boolean wasPaintCalled() {
177 return paintWasCalled;
178 }
179
180 @Override
181 public void resetPaintCalledFlag() {
182 paintWasCalled = false;
183 }
184 }
185
186 public static void main(String[] args) {
187 new ComponentIsNotDrawnAfterRemoveAddTest().runTest();
188 }
189 }