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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.
*/
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JSlider;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.plaf.SliderUI;
import javax.swing.plaf.basic.BasicSliderUI;
import javax.swing.plaf.metal.DefaultMetalTheme;
import javax.swing.plaf.metal.MetalLookAndFeel;
import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
import static javax.swing.UIManager.getInstalledLookAndFeels;
/**
* @test
* @bug 8256713
* @key headful
* @summary The thumb should not touch pixels outside its location.
*/
public final class PaintThumbSize {
private static final int SCALE = 2;
private static final int SHIFT = 100;
public static void main(String[] args) throws Exception {
for (UIManager.LookAndFeelInfo laf : getInstalledLookAndFeels()) {
EventQueue.invokeAndWait(() -> setLookAndFeel(laf));
EventQueue.invokeAndWait(PaintThumbSize::test);
if (laf.getClassName().contains("Metal")) {
EventQueue.invokeAndWait(() -> {
System.err.println("\tAdditional theme: DefaultMetalTheme");
MetalLookAndFeel.setCurrentTheme(new DefaultMetalTheme());
test();
});
}
}
}
private static void test() {
BufferedImage bi = new BufferedImage(500, 500, TYPE_INT_ARGB);
Graphics2D g = bi.createGraphics();
g.setColor(Color.CYAN);
g.fillRect(0, 0, bi.getWidth(), bi.getHeight());
g.setColor(Color.BLACK);
g.scale(SCALE, SCALE);
g.translate(SHIFT, SHIFT);
JSlider slider = new JSlider();
SliderUI ui = slider.getUI();
if (ui instanceof BasicSliderUI) {
BasicSliderUI bui = (BasicSliderUI) ui;
bui.setThumbLocation(0, 0);
bui.paintThumb(g);
for (int y = 0; y < bi.getHeight(); ++y) {
for (int x = 0; x < bi.getWidth(); ++x) {
if (x >= SHIFT * SCALE && y >= SHIFT * SCALE) {
continue;
}
if (bi.getRGB(x, y) != Color.CYAN.getRGB()) {
System.err.println("x = " + x);
System.err.println("y = " + y);
try {
ImageIO.write(bi,"png", new File("image.png"));
} catch (IOException e) {
e.printStackTrace();
}
throw new RuntimeException("Wrong color");
}
}
}
}
g.dispose();
}
private static void setLookAndFeel(UIManager.LookAndFeelInfo laf) {
try {
System.err.println("LookAndFeel: " + laf.getClassName());
UIManager.setLookAndFeel(laf.getClassName());
} catch (UnsupportedLookAndFeelException ignored) {
System.err.println("Unsupported LookAndFeel: " + laf.getClassName());
} catch (ClassNotFoundException | InstantiationException |
IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}
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