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/*
* Copyright (c) 2000, 2025, 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.
*/
/*
* @test
* @bug 4251781
* @summary Tests that JWindow repaint is optimized (background is not
cleared).
* @library /java/awt/regtesthelpers
* @build PassFailJFrame
* @run main/manual bug4251781
*/
import java.awt.Color;
import java.awt.Container;
import javax.swing.JButton;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JWindow;
public class bug4251781 {
private static final String INSTRUCTIONS = """
Press the button at the bottom-right corner of the gray
window with the mouse.
If the window DOES NOT flicker when you press and/or release
the mouse button press PASS else FAIL.
""";
public static void main(String[] args) throws Exception {
PassFailJFrame.builder()
.instructions(INSTRUCTIONS)
.columns(40)
.testUI(bug4251781::createAndShowUI)
.build()
.awaitAndCheck();
}
private static JWindow createAndShowUI() {
JWindow w = new JWindow();
final Container pane = w.getContentPane();
pane.setLayout(null);
pane.setBackground(Color.GRAY.darker());
final JPopupMenu popup = new JPopupMenu();
popup.add(new JMenuItem("item 1"));
popup.add(new JMenuItem("exit"));
JButton b = new JButton("menu");
b.setBounds(350, 250, 50, 50);
b.addActionListener(ev -> popup.show(pane, 0, 0));
pane.add(b);
w.setSize(400, 300);
return w;
}
}
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