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/*
* Copyright (c) 2001, 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 4305622
* @summary MetalToolBarUI.installUI invokeLater causes flickering
* @library /java/awt/regtesthelpers
* @build PassFailJFrame
* @run main/manual bug4305622
*/
import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JToolBar;
import javax.swing.UIManager;
import javax.swing.border.LineBorder;
public class bug4305622 {
private static JFrame fr;
static final String INSTRUCTIONS = """
Press button "Create ToolBar" at frame "Create ToolBar Test".
If you see any flickering during creating of toolbar
then the test FAILS, otherwise the test PASSES.
""";
public static void main(String[] args) throws Exception {
UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
PassFailJFrame.builder()
.title("bug4305622 Test Instructions")
.instructions(INSTRUCTIONS)
.columns(40)
.testUI(bug4305622::createUI)
.build()
.awaitAndCheck();
}
static JFrame createUI() {
fr = new JFrame("Create ToolBar Test");
JButton button = new JButton("Create ToolBar");
button.addActionListener(ae -> addToolBar());
fr.add(button, BorderLayout.SOUTH);
fr.setSize(400, 400);
return fr;
}
static void addToolBar() {
fr.repaint();
fr.revalidate();
JToolBar toolbar = new JToolBar();
JButton btn = new JButton("Button 1");
btn.setBorder(new LineBorder(Color.red, 30));
toolbar.add(btn);
btn = new JButton("Button 2");
btn.setBorder(new LineBorder(Color.red, 30));
toolbar.add(btn);
toolbar.updateUI();
fr.add(toolbar, BorderLayout.NORTH);
}
}
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