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bug4842792.java
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/
bug4842792.java
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/*
* Copyright (c) 2003, 2023, 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 javax.swing.JScrollBar;
import javax.swing.SwingUtilities;
import java.awt.Dimension;
import java.awt.event.MouseEvent;
import java.util.Date;
/*
* @test
* @bug 4842792
* @summary JScrollBar behaves incorrectly if "Block increment" value is big enough
* @run main bug4842792
*/
public class bug4842792 {
public static TestScrollBar scrollBar;
public static void main(String[] args) throws Exception {
SwingUtilities.invokeAndWait(() -> {
scrollBar = new TestScrollBar(JScrollBar.HORIZONTAL, 10, 10, 0, 100);
scrollBar.setPreferredSize(new Dimension(200, 20));
scrollBar.setBlockIncrement(Integer.MAX_VALUE);
if (scrollBar.doTest() == 0) {
throw new RuntimeException("The scrollbar new value should not be 0");
}
});
System.out.println("Test Passed!");
}
static class TestScrollBar extends JScrollBar {
public TestScrollBar(int orientation, int value, int extent,
int min, int max) {
super(orientation, value, extent, min, max);
}
public int doTest() {
MouseEvent mouseEvent = new MouseEvent(scrollBar,
MouseEvent.MOUSE_PRESSED,
(new Date()).getTime(),
MouseEvent.BUTTON1_DOWN_MASK,
150, 10, 1, true);
processMouseEvent(mouseEvent);
return scrollBar.getValue();
}
}
}