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8287912: GTK L&F : Background of tree icons are red
Reviewed-by: psadhukhan, jdv
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test/jdk/javax/swing/JTree/TestTreeBackgroundColor.java
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/* | ||
* Copyright (c) 2022, 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. | ||
*/ | ||
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/* | ||
* @test | ||
* @bug 8287912 | ||
* @key headful | ||
* @requires (os.family == "linux") | ||
* @summary Verifies if tree background color is red when | ||
* setOpaque(false) method is called for tree component | ||
* @run main TestTreeBackgroundColor | ||
*/ | ||
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import java.awt.Color; | ||
import java.awt.GridLayout; | ||
import java.awt.Point; | ||
import java.awt.Rectangle; | ||
import java.awt.Robot; | ||
import java.awt.image.BufferedImage; | ||
import java.io.File; | ||
import javax.imageio.ImageIO; | ||
import javax.swing.JFrame; | ||
import javax.swing.JPanel; | ||
import javax.swing.JTree; | ||
import javax.swing.SwingUtilities; | ||
import javax.swing.UIManager; | ||
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public class TestTreeBackgroundColor { | ||
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private static JFrame frame; | ||
private static JPanel panel; | ||
private static JTree tree; | ||
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public static void main(String[] args) throws Exception { | ||
UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel"); | ||
Robot robot = new Robot(); | ||
robot.setAutoDelay(100); | ||
try { | ||
SwingUtilities.invokeAndWait(new Runnable() { | ||
public void run() { | ||
createAndShowUI(); | ||
} | ||
}); | ||
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robot.waitForIdle(); | ||
robot.delay(1000); | ||
Point pt = tree.getLocationOnScreen(); | ||
BufferedImage img = | ||
robot.createScreenCapture(new Rectangle(pt.x, pt.y, | ||
tree.getWidth(), | ||
tree.getHeight())); | ||
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boolean passed = false; | ||
for (int x = img.getWidth()/2; x < img.getWidth() - 1; ++x) { | ||
Color c = new Color(img.getRGB(x, img.getHeight()/4)); | ||
if (!c.equals(Color.RED)) { | ||
passed = false; | ||
break; | ||
} else { | ||
passed = true; | ||
} | ||
} | ||
if (!passed) { | ||
ImageIO.write(img, "png", new File("TreeBackgroundColorFail.png")); | ||
throw new RuntimeException("Test Case Failed : Tree Background Color is Not Red"); | ||
} | ||
} finally { | ||
SwingUtilities.invokeAndWait(() -> { | ||
if (frame != null) { | ||
frame.dispose(); | ||
} | ||
}); | ||
} | ||
} | ||
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private static void createAndShowUI() { | ||
frame = new JFrame("Test Tree Background Color"); | ||
panel = new JPanel(); | ||
tree = new JTree(); | ||
panel.setBackground(Color.red); | ||
panel.setLayout(new GridLayout(1, 1)); | ||
tree.setOpaque(false); | ||
panel.add(tree); | ||
frame.getContentPane().add(panel); | ||
frame.pack(); | ||
frame.setSize(250, 200); | ||
frame.setLocationRelativeTo(null); | ||
frame.setVisible(true); | ||
} | ||
} | ||
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