russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
119 lines
3.7 KiB
Java
119 lines
3.7 KiB
Java
/*
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* Copyright (c) 1999, 2025, 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 4139900
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* @summary height of combobox may differ
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* @key headful
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* @run main bug4139900
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*/
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import java.awt.Dimension;
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import java.awt.Robot;
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import java.awt.event.ActionListener;
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import javax.swing.DefaultComboBoxModel;
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import javax.swing.JButton;
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import javax.swing.JComboBox;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.SwingUtilities;
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public class bug4139900 {
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static JButton button;
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static JFrame frame;
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static JComboBox<String> comboBox;
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static int initialHeight;
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public static void main(String[] args) throws Exception {
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try {
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SwingUtilities.invokeAndWait(bug4139900::init);
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test();
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} finally {
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SwingUtilities.invokeAndWait(() -> {
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if (frame != null) {
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frame.dispose();
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}
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});
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}
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}
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private static void test() throws Exception {
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Robot robot = new Robot();
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robot.waitForIdle();
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robot.delay(500);
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SwingUtilities.invokeAndWait(() -> initialHeight = comboBox.getHeight());
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for (int i = 0; i < 10; i++) {
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SwingUtilities.invokeAndWait(() -> button.doClick());
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robot.waitForIdle();
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robot.delay(200);
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SwingUtilities.invokeAndWait(() -> {
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if (comboBox.getHeight() != initialHeight) {
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throw new RuntimeException(
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"Test failed: height differs from initial %d != %d"
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.formatted(comboBox.getHeight(), initialHeight)
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);
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}
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});
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}
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}
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public static void init() {
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frame = new JFrame("bug4139900");
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DefaultComboBoxModel<String> model =
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new DefaultComboBoxModel<>(new String[]{
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"Coma Berenices",
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"Triangulum",
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"Camelopardis",
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"Cassiopea"
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});
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comboBox = new JComboBox<>();
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comboBox.setEditable(true);
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button = new JButton("Add/Remove Items");
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ActionListener actionListener = e -> {
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if (comboBox.getModel() == model) {
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comboBox.setModel(new DefaultComboBoxModel<>());
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} else {
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comboBox.setModel(model);
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}
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};
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button.addActionListener(actionListener);
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JPanel panel = new JPanel();
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panel.setPreferredSize(new Dimension(300, 100));
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panel.add(comboBox);
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panel.add(button);
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frame.add(panel);
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frame.pack();
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frame.setLocationRelativeTo(null);
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frame.setVisible(true);
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}
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}
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