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/*
* Copyright (c) 2016, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @key headful
* @bug 8139581
* @summary AWT components are not drawn after removal and addition to a container
* @author Anton Litvinov
*/
import java.awt.Button;
import java.awt.Color;
import java.awt.Canvas;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Panel;
import java.util.ArrayList;
public class ComponentIsNotDrawnAfterRemoveAddTest {
private final Frame frame;
private final Panel panel;
private final ArrayList<Testable> compList = new ArrayList<Testable>();
public ComponentIsNotDrawnAfterRemoveAddTest() {
frame = new Frame("ComponentIsNotDrawnAfterRemoveAddTest");
frame.setSize(500, 500);
frame.setLocation(200, 200);
frame.setLayout(null);
frame.setBackground(Color.RED);
panel = new Panel();
panel.setLayout(null);
panel.setBounds(25, 100, 455, 295);
panel.setBackground(Color.GREEN);
for (int i = 0; i < 10; i++) {
TestCanvas canv1 = new TestCanvas();
canv1.setBounds(i * 45 + 5, 15, 30 + i, 30 + i);
panel.add(canv1);
compList.add(canv1);
TestButton btn1 = new TestButton();
btn1.setBounds(i * 45 + 5, 60, 30 + i, 30 + i);
panel.add(btn1);
compList.add(btn1);
TestCanvas canv2 = new TestCanvas();
canv2.setBounds(i * 45 + 5, 105, 30 + i, 30 + i);
panel.add(canv2);
compList.add(canv2);
TestButton btn2 = new TestButton();
btn2.setBounds(i * 45 + 5, 150, 30 + i, 30 + i);
panel.add(btn2);
compList.add(btn2);
TestCanvas canv3 = new TestCanvas();
canv3.setBounds(i * 45 + 5, 195, 30 + i, 30 + i);
panel.add(canv3);
compList.add(canv3);
TestButton btn3 = new TestButton();
btn3.setBounds(i * 45 + 5, 240, 30 + i, 30 + i);
panel.add(btn3);
compList.add(btn3);
}
frame.add(panel);
frame.setVisible(true);
}
private void runTest() {
try {
doSleep(1500);
checkTestableComponents();
for (int i = 0; i < 5; i++) {
System.err.println(String.format("Test iteration #%d:", i));
frame.remove(panel);
frame.invalidate();
frame.validate();
frame.add(panel);
doSleep(1500);
checkTestableComponents();
}
} finally {
frame.dispose();
}
}
private void doSleep(long millis) {
try {
Thread.sleep(millis);
} catch (InterruptedException ie) {
ie.printStackTrace();
}
}
private void checkTestableComponents() throws RuntimeException {
int notDrawnCompsCount = 0;
for (Testable comp : compList) {
if (!comp.wasPaintCalled()) {
notDrawnCompsCount++;
} else {
comp.resetPaintCalledFlag();
}
}
if (notDrawnCompsCount > 0) {
throw new RuntimeException(String.format(
"'paint' method of %d components was not called.", notDrawnCompsCount));
}
}
private interface Testable {
boolean wasPaintCalled();
void resetPaintCalledFlag();
}
private static class TestCanvas extends Canvas implements Testable {
private volatile boolean paintWasCalled = false;
@Override
public void paint(Graphics g) {
paintWasCalled = true;
super.paint(g);
g.setColor(Color.BLUE);
g.fillRect(0, 0, getWidth(), getHeight());
}
@Override
public boolean wasPaintCalled() {
return paintWasCalled;
}
@Override
public void resetPaintCalledFlag() {
paintWasCalled = false;
}
}
private static class TestButton extends Button implements Testable {
private volatile boolean paintWasCalled = false;
@Override
public void paint(Graphics g) {
paintWasCalled = true;
super.paint(g);
g.setColor(Color.YELLOW);
g.fillRect(0, 0, 15, 15);
}
@Override
public boolean wasPaintCalled() {
return paintWasCalled;
}
@Override
public void resetPaintCalledFlag() {
paintWasCalled = false;
}
}
public static void main(String[] args) {
new ComponentIsNotDrawnAfterRemoveAddTest().runTest();
}
}
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