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8251254: Add automated test for fix done in JDK-8218472
Backport-of: 8bf5b1d
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test/jdk/javax/swing/JProgressBar/TestJProgressBarHighlightColor.java
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/* | ||
* Copyright (c) 2020, 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 | ||
* @requires (os.family == "linux") | ||
* @key headful | ||
* @bug 8218472 | ||
* @summary Tests JProgressBar highlight color | ||
* @run main TestJProgressBarHighlightColor | ||
*/ | ||
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import javax.swing.JFrame; | ||
import javax.swing.JPanel; | ||
import javax.swing.JProgressBar; | ||
import javax.swing.SwingUtilities; | ||
import javax.swing.UIManager; | ||
import javax.swing.UnsupportedLookAndFeelException; | ||
import java.awt.BorderLayout; | ||
import java.awt.Color; | ||
import java.awt.Component; | ||
import java.awt.Point; | ||
import java.awt.Rectangle; | ||
import java.awt.Robot; | ||
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public class TestJProgressBarHighlightColor { | ||
private static JFrame frame; | ||
private static JProgressBar progressBar; | ||
private static Point point; | ||
private static Rectangle rect; | ||
private static Robot robot; | ||
private static final String GTK_LAF_CLASS = "GTKLookAndFeel"; | ||
private static int minColorDifference = 100; | ||
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private static void blockTillDisplayed(Component comp) { | ||
Point p = null; | ||
while (p == null) { | ||
try { | ||
p = comp.getLocationOnScreen(); | ||
} catch (IllegalStateException e) { | ||
try { | ||
Thread.sleep(500); | ||
} catch (InterruptedException ie) { | ||
} | ||
} | ||
} | ||
} | ||
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private static int getMaxColorDiff(Color c1, Color c2) { | ||
return Math.max(Math.abs(c1.getRed() - c2.getRed()), | ||
Math.max(Math.abs(c1.getGreen() - c2.getGreen()), | ||
Math.abs(c1.getBlue() - c2.getBlue()))); | ||
} | ||
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public static void main(String[] args) throws Exception { | ||
if (!System.getProperty("os.name").startsWith("Linux")) { | ||
System.out.println("This test is meant for Linux platform only"); | ||
return; | ||
} | ||
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for (UIManager.LookAndFeelInfo lookAndFeelInfo : | ||
UIManager.getInstalledLookAndFeels()) { | ||
if (lookAndFeelInfo.getClassName().contains(GTK_LAF_CLASS)) { | ||
try { | ||
UIManager.setLookAndFeel(lookAndFeelInfo.getClassName()); | ||
} catch (final UnsupportedLookAndFeelException ignored) { | ||
System.out.println("GTK L&F could not be set, so this " + | ||
"test can not be run in this scenario "); | ||
return; | ||
} | ||
} | ||
} | ||
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robot = new Robot(); | ||
robot.setAutoDelay(100); | ||
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try { | ||
SwingUtilities.invokeAndWait(new Runnable() { | ||
public void run() { | ||
JPanel panel = new JPanel(); | ||
progressBar = new JProgressBar(); | ||
progressBar.setValue(50); | ||
panel.add(progressBar, BorderLayout.CENTER); | ||
frame = new JFrame("TestSelectedTextBackgroundColor"); | ||
frame.add(panel); | ||
frame.setSize(200, 200); | ||
frame.setAlwaysOnTop(true); | ||
frame.setLocationRelativeTo(null); | ||
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); | ||
frame.setVisible(true); | ||
} | ||
}); | ||
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robot.waitForIdle(); | ||
robot.delay(500); | ||
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blockTillDisplayed(progressBar); | ||
SwingUtilities.invokeAndWait(() -> { | ||
point = progressBar.getLocationOnScreen(); | ||
rect = progressBar.getBounds(); | ||
}); | ||
robot.waitForIdle(); | ||
robot.delay(500); | ||
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Color backgroundColor = robot | ||
.getPixelColor(point.x+rect.width*3/4, point.y+rect.height/2); | ||
robot.waitForIdle(); | ||
robot.delay(500); | ||
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Color highlightColor = robot | ||
.getPixelColor(point.x+rect.width/4, point.y+rect.height/2); | ||
robot.waitForIdle(); | ||
robot.delay(500); | ||
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int actualColorDifference = getMaxColorDiff(backgroundColor, highlightColor); | ||
if (actualColorDifference < minColorDifference) { | ||
throw new RuntimeException("The expected highlight color for " + | ||
"JProgressBar was not found"); | ||
} | ||
} finally { | ||
if (frame != null) { | ||
SwingUtilities.invokeAndWait(frame::dispose); | ||
} | ||
} | ||
} | ||
} |
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