1
2 /*
3 * Copyright (c) 2016, 2016, Oracle and/or its affiliates. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24
25 /*
26 * @test
27 * @key headful
28 * @bug 8139581
29 * @summary AWT components are not drawn after removal and addition to a container
30 * @author Anton Litvinov
31 */
32
33 import java.awt.Button;
34 import java.awt.Color;
35 import java.awt.Canvas;
36 import java.awt.Frame;
37 import java.awt.Graphics;
38 import java.awt.Panel;
39 import java.util.ArrayList;
40
41 public class ComponentIsNotDrawnAfterRemoveAddTest {
42 private final Frame frame;
43 private final Panel panel;
44 private final ArrayList<Testable> compList = new ArrayList<Testable>();
45
46 public ComponentIsNotDrawnAfterRemoveAddTest() {
47 frame = new Frame("ComponentIsNotDrawnAfterRemoveAddTest");
48 frame.setSize(500, 500);
49 frame.setLocation(200, 200);
50 frame.setLayout(null);
51 frame.setBackground(Color.RED);
52
53 panel = new Panel();
54 panel.setLayout(null);
55 panel.setBounds(25, 100, 455, 295);
56 panel.setBackground(Color.GREEN);
57
58 for (int i = 0; i < 10; i++) {
59 TestCanvas canv1 = new TestCanvas();
60 canv1.setBounds(i * 45 + 5, 15, 30 + i, 30 + i);
61 panel.add(canv1);
62 compList.add(canv1);
63
64 TestButton btn1 = new TestButton();
65 btn1.setBounds(i * 45 + 5, 60, 30 + i, 30 + i);
66 panel.add(btn1);
67 compList.add(btn1);
68
69 TestCanvas canv2 = new TestCanvas();
70 canv2.setBounds(i * 45 + 5, 105, 30 + i, 30 + i);
71 panel.add(canv2);
72 compList.add(canv2);
73
74 TestButton btn2 = new TestButton();
75 btn2.setBounds(i * 45 + 5, 150, 30 + i, 30 + i);
76 panel.add(btn2);
77 compList.add(btn2);
78
79 TestCanvas canv3 = new TestCanvas();
80 canv3.setBounds(i * 45 + 5, 195, 30 + i, 30 + i);
81 panel.add(canv3);
82 compList.add(canv3);
83
84 TestButton btn3 = new TestButton();
85 btn3.setBounds(i * 45 + 5, 240, 30 + i, 30 + i);
86 panel.add(btn3);
87 compList.add(btn3);
88 }
89
90 frame.add(panel);
91 frame.setVisible(true);
92 }
93
94 private void runTest() {
95 try {
96 doSleep(1500);
97 checkTestableComponents();
98
99 for (int i = 0; i < 5; i++) {
100 System.err.println(String.format("Test iteration #%d:", i));
101
102 frame.remove(panel);
103 frame.invalidate();
104 frame.validate();
105 frame.add(panel);
106
107 doSleep(1500);
108 checkTestableComponents();
109 }
110 } finally {
111 frame.dispose();
112 }
113 }
114
115 private void doSleep(long millis) {
116 try {
117 Thread.sleep(millis);
118 } catch (InterruptedException ie) {
119 ie.printStackTrace();
120 }
121 }
122
123 private void checkTestableComponents() throws RuntimeException {
124 int notDrawnCompsCount = 0;
125 for (Testable comp : compList) {
126 if (!comp.wasPaintCalled()) {
127 notDrawnCompsCount++;
128 } else {
129 comp.resetPaintCalledFlag();
130 }
131 }
132 if (notDrawnCompsCount > 0) {
133 throw new RuntimeException(String.format(
134 "'paint' method of %d components was not called.", notDrawnCompsCount));
135 }
136 }
137
138 private interface Testable {
139 boolean wasPaintCalled();
140 void resetPaintCalledFlag();
141 }
142
143 private static class TestCanvas extends Canvas implements Testable {
144 private volatile boolean paintWasCalled = false;
145
146 @Override
147 public void paint(Graphics g) {
148 paintWasCalled = true;
149 super.paint(g);
150 g.setColor(Color.BLUE);
151 g.fillRect(0, 0, getWidth(), getHeight());
152 }
153
154 @Override
155 public boolean wasPaintCalled() {
156 return paintWasCalled;
157 }
158
159 @Override
160 public void resetPaintCalledFlag() {
161 paintWasCalled = false;
162 }
163 }
164
165 private static class TestButton extends Button implements Testable {
166 private volatile boolean paintWasCalled = false;
167
168 @Override
169 public void paint(Graphics g) {
170 paintWasCalled = true;
171 super.paint(g);
172 g.setColor(Color.YELLOW);
173 g.fillRect(0, 0, 15, 15);
174 }
175
176 @Override
177 public boolean wasPaintCalled() {
178 return paintWasCalled;
179 }
180
181 @Override
182 public void resetPaintCalledFlag() {
183 paintWasCalled = false;
184 }
185 }
186
187 public static void main(String[] args) {
188 new ComponentIsNotDrawnAfterRemoveAddTest().runTest();
189 }
190 }