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/*
* Copyright (c) 1999, 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 4196987
* @summary Test Metal L&F JTree expander icons transparency.
* @library /java/awt/regtesthelpers
* @build PassFailJFrame
* @run main/manual bug4196987
*/
import java.awt.Color;
import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTree;
import javax.swing.UIManager;
public class bug4196987 {
static final String INSTRUCTIONS = """
If the background of tree icons are red, the test PASSES.
Otherwise the test FAILS.
""";
public static void main(String[] args) throws Exception {
UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
PassFailJFrame.builder()
.title("bug4196987 Test Instructions")
.instructions(INSTRUCTIONS)
.columns(40)
.testUI(bug4196987::createUI)
.build()
.awaitAndCheck();
}
static JFrame createUI() {
JFrame f = new JFrame("JTree Icon Transparency Test");
JPanel p = new JPanel();
p.setBackground(Color.red);
p.setLayout(new GridLayout(1, 1));
JTree t = new JTree();
t.setOpaque(false);
p.add(t);
f.add(p);
f.setSize(200, 200);
return f;
}
}
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