108 lines
3.6 KiB
Java
108 lines
3.6 KiB
Java
/*
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* Copyright (c) 2022, 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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import java.awt.AWTException;
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import java.awt.Color;
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import java.awt.Robot;
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import java.lang.reflect.InvocationTargetException;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.JTabbedPane;
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import javax.swing.SwingUtilities;
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/*
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* @test
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* @bug 8259687
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* @key headful
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* @summary Tests whether the selected tab's component is on the top and visible.
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* @run main TabbedPaneBug
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*/
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public class TabbedPaneBug {
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private static final int FIRST = 0;
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private static final int SECOND = 1;
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private static JFrame window;
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private static JTabbedPane tabs;
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private static final JPanel firstTab = new JPanel();
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private static final JPanel secondTab = new JPanel();
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public static void main(String[] args) throws AWTException,
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InterruptedException, InvocationTargetException {
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try {
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Robot robot = new Robot();
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robot.setAutoDelay(200);
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SwingUtilities.invokeAndWait(() -> createAndShowGUI());
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robot.waitForIdle();
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robot.mouseMove(window.getWidth()/2, window.getHeight()/2);
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robot.delay(500);
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Color actualColor = robot.getPixelColor(window.getWidth()/2,
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window.getHeight()/2);
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robot.delay(200);
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if (actualColor.equals(Color.RED)) {
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throw new RuntimeException("The second (selected) component" +
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" is not on the top!!");
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}
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} finally {
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SwingUtilities.invokeAndWait(() -> {
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if (window != null) {
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window.dispose();
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}
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});
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}
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}
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private static void createAndShowGUI() {
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window = new JFrame("Tabbed Pane Bug");
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tabs = new JTabbedPane();
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firstTab.setBackground(Color.RED);
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secondTab.setBackground(Color.GREEN);
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tabs.addChangeListener((e) -> {
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if (tabs.getSelectedComponent() == null) {
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switch (tabs.getSelectedIndex()) {
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case FIRST:
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tabs.setComponentAt(tabs.getSelectedIndex(), firstTab);
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break;
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case SECOND:
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tabs.setComponentAt(tabs.getSelectedIndex(), secondTab);
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break;
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default:
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}
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}
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});
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tabs.addTab("First", null);
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tabs.addTab("Second", null);
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tabs.setSelectedIndex(SECOND);
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window.add(tabs);
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window.setSize(200, 200);
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window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
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window.setVisible(true);
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}
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}
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