100 lines
2.7 KiB
Java
100 lines
2.7 KiB
Java
/*
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* Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4147246
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* @summary Simple check for peer != null in Component.componentMoved
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* @key headful
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* @run main LWParentMovedTest
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*/
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import java.awt.Button;
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import java.awt.Color;
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import java.awt.Container;
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import java.awt.EventQueue;
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import java.awt.FlowLayout;
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import java.awt.Frame;
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import java.awt.Graphics;
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public class LWParentMovedTest {
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static CMTFrame f;
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// test will throw an exception and fail if lwc is null
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public static void main(String[] args) throws Exception {
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try {
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EventQueue.invokeAndWait(() -> f = new CMTFrame());
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} finally {
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if (f != null) {
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EventQueue.invokeAndWait(() -> f.dispose());
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}
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}
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}
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}
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class CMTFrame extends Frame {
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Container lwc;
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Button button;
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public CMTFrame() {
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super("Moving LWC Test");
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setLayout(new FlowLayout());
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lwc = new LWSquare(Color.blue, 100, 100);
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button = new Button();
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lwc.add(button);
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add(lwc);
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setSize(400, 300);
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setVisible(true);
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// queue up a bunch of COMPONENT_MOVED events
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for (int i = 0; i < 1000; i++) {
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lwc.setLocation(i, i);
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}
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// remove heavyweight from lightweight container
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lwc.remove(button);
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}
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}
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//
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// Lightweight container
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//
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class LWSquare extends Container {
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int width;
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int height;
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public LWSquare(Color color, int w, int h) {
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setBackground(color);
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setLayout(new FlowLayout());
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width = w;
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height = h;
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setName("LWSquare-" + color.toString());
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}
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public void paint(Graphics g) {
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g.setColor(getBackground());
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g.fillRect(0, 0, 1000, 1000);
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}
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}
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