| |
| /* |
| * 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(); |
| } |
| } |