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/*
* Copyright (c) 2021, 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.
*/
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JScrollBar;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.Border;
import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
/*
* @test
* @bug 8190264
* @summary JScrollBar ignores its border when using macOS Mac OS X Aqua look and feel
* @run main ScrollBarBorderTest
*/
public class ScrollBarBorderTest {
private static JScrollBar scrollBar;
public static final int BORDER_WIDTH = 150;
public static final int WIDTH = BORDER_WIDTH + 200;
public static final int HEIGHT = 20;
public static void main(String[] args) throws Exception {
for (UIManager.LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
SwingUtilities.invokeAndWait(() -> setLookAndFeel(laf));
SwingUtilities.invokeAndWait(ScrollBarBorderTest::testHorizontal);
SwingUtilities.invokeAndWait(ScrollBarBorderTest::testVertical);
}
}
public static void testHorizontal() {
// create scroll bar
scrollBar = new JScrollBar(JScrollBar.HORIZONTAL);
scrollBar.setSize(WIDTH, HEIGHT);
scrollBar.setBorder(new HorizontalCustomBorder());
// paint image with thumb set to default value
BufferedImage image1 = new BufferedImage(WIDTH, HEIGHT, TYPE_INT_ARGB);
Graphics2D graphics2D = image1.createGraphics();
scrollBar.paint(graphics2D);
graphics2D.dispose();
// paint image with thumb set to max value
scrollBar.setValue(Integer.MAX_VALUE);
BufferedImage image2 = new BufferedImage(WIDTH, HEIGHT, TYPE_INT_ARGB);
Graphics2D graphics2D2 = image2.createGraphics();
scrollBar.paint(graphics2D2);
graphics2D2.dispose();
// check border for thumb
for (int x = WIDTH - BORDER_WIDTH; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
int c1 = image1.getRGB(x, y);
int c2 = image2.getRGB(x, y);
if (c1 != c2) {
System.out.println(x + " " + y + " " + "Color1: "
+ Integer.toHexString(c1));
System.out.println(x + " " + y + " " + "Color2: "
+ Integer.toHexString(c2));
saveImage(image1, "himage1.png");
saveImage(image2, "himage2.png");
throw new RuntimeException("Horizontal border has a thumb in it");
}
}
}
}
public static void testVertical() {
// create scroll bar
scrollBar = new JScrollBar(JScrollBar.VERTICAL);
scrollBar.setSize(HEIGHT, WIDTH);
scrollBar.setBorder(new VerticalCustomBorder());
// paint image with thumb set to 0
scrollBar.setValue(0);
BufferedImage image1 = new BufferedImage(HEIGHT, WIDTH, TYPE_INT_ARGB);
Graphics2D graphics2D = image1.createGraphics();
scrollBar.paint(graphics2D);
graphics2D.dispose();
// paint image with thumb set to max value
scrollBar.setValue(Integer.MAX_VALUE);
BufferedImage image2 = new BufferedImage(HEIGHT, WIDTH, TYPE_INT_ARGB);
Graphics2D graphics2D2 = image2.createGraphics();
scrollBar.paint(graphics2D2);
graphics2D2.dispose();
// check border for thumb
for (int y = WIDTH - BORDER_WIDTH; y < WIDTH; y++) {
for (int x = 0; x < HEIGHT; x++) {
int c1 = image1.getRGB(x, y);
int c2 = image2.getRGB(x, y);
if (c1 != c2) {
System.out.println(x + " " + y + " " + "Color1: "
+ Integer.toHexString(c1));
System.out.println(x + " " + y + " " + "Color2: "
+ Integer.toHexString(c2));
saveImage(image1, "vimage1.png");
saveImage(image2, "vimage2.png");
throw new RuntimeException("Vertical border has a thumb in it");
}
}
}
}
private static void setLookAndFeel(UIManager.LookAndFeelInfo laf) {
try {
UIManager.setLookAndFeel(laf.getClassName());
System.out.println(laf.getName());
} catch (UnsupportedLookAndFeelException ignored){
System.out.println("Unsupported LookAndFeel: " + laf.getClassName());
} catch (ClassNotFoundException | InstantiationException |
IllegalAccessException e) {
throw new RuntimeException(e);
}
}
private static void saveImage(BufferedImage image, String filename) {
try {
ImageIO.write(image, "png", new File(filename));
} catch (IOException e) {
// Don't propagate the exception
e.printStackTrace();
}
}
// custom border
private static class HorizontalCustomBorder implements Border {
@Override
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
g.setColor(new Color(255, 0, 0, 100));
g.fillRect(width - BORDER_WIDTH, y, width, height);
}
@Override
public Insets getBorderInsets(Component c) {
return new Insets(0, 0, 0, BORDER_WIDTH);
}
@Override
public boolean isBorderOpaque() {
return true;
}
}
// custom border
private static class VerticalCustomBorder implements Border {
@Override
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
g.setColor(new Color(255, 0, 0, 100));
g.fillRect(x, height - BORDER_WIDTH, width, height);
}
@Override
public Insets getBorderInsets(Component c) {
return new Insets(0, 0, BORDER_WIDTH, 0);
}
@Override
public boolean isBorderOpaque() {
return true;
}
}
}
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