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/*
* Copyright (c) 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.
*/
import java.awt.AWTException;
import java.awt.Dimension;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.WindowConstants;
/*
* @test
* @key headful
* @bug 8136998
* @summary Checks that JComboBox does not prevent mouse-wheel scrolling JScrollPane.
* @library ../../regtesthelpers
* @build Util
* @run main bug8136998
* @author Alexey Ivanov
*/
public class bug8136998 {
private static final String[] ITEMS = new String[] {
"A", "B", "C", "D", "E", "F"
};
private final Robot robot;
private JFrame frame;
private JComboBox comboBox;
private JScrollPane scrollPane;
public static void main(String[] args) throws Exception {
iterateLookAndFeels(new bug8136998());
}
protected static void iterateLookAndFeels(final bug8136998 test) throws Exception {
LookAndFeelInfo[] lafInfo = UIManager.getInstalledLookAndFeels();
for (LookAndFeelInfo info : lafInfo) {
try {
UIManager.setLookAndFeel(info.getClassName());
System.out.println("Look and Feel: " + info.getClassName());
test.runTest();
} catch (UnsupportedLookAndFeelException e) {
System.out.println("Skipping unsupported LaF: " + info);
}
}
}
public bug8136998() throws AWTException {
robot = new Robot();
robot.setAutoDelay(200);
}
private void setupUI() {
frame = new JFrame();
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
comboBox = new JComboBox<>(ITEMS);
JPanel scrollable = new JPanel();
scrollable.setLayout(new BoxLayout(scrollable, BoxLayout.Y_AXIS));
scrollable.add(Box.createVerticalStrut(200));
scrollable.add(comboBox);
scrollable.add(Box.createVerticalStrut(200));
scrollPane = new JScrollPane(scrollable);
frame.add(scrollPane);
frame.setSize(100, 200);
frame.setVisible(true);
}
public void runTest() throws Exception {
try {
SwingUtilities.invokeAndWait(this::setupUI);
robot.waitForIdle();
SwingUtilities.invokeAndWait(() ->
scrollPane.getViewport().scrollRectToVisible(comboBox.getBounds())
);
robot.waitForIdle();
// Move mouse pointer to the center of the combo box
Point p = comboBox.getLocationOnScreen();
Dimension d = comboBox.getSize();
robot.mouseMove(p.x + d.width / 2, p.y + d.height / 2);
// The currently visible rectangle in scrollPane
Rectangle viewRect0 = Util.invokeOnEDT(scrollPane.getViewport()::getViewRect);
// Scroll the scrollPane with mouse wheel
robot.mouseWheel(1);
robot.waitForIdle();
// The updated rectangle
Rectangle viewRect1 = Util.invokeOnEDT(scrollPane.getViewport()::getViewRect);
if (viewRect0.y == viewRect1.y) {
throw new RuntimeException("Mouse wheel should have scrolled the JScrollPane");
}
} finally {
if (frame != null) {
frame.dispose();
}
}
System.out.println("Test passed");
}
}
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