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/*
* Copyright (c) 2016, 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.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.AffineTransform;
import java.awt.image.BaseMultiResolutionImage;
import java.awt.image.BufferedImage;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.swing.DefaultListCellRenderer;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
/*
* @test
* @bug 8162350
* @summary RepaintManager shifts repainted region when the floating point UI scale is used
* @run main/manual/othervm -Dsun.java2d.uiScale=1.5 RepaintManagerFPUIScaleTest
*/
public class RepaintManagerFPUIScaleTest {
private static volatile boolean testResult = false;
private static volatile CountDownLatch countDownLatch;
private static final String INSTRUCTIONS = "INSTRUCTIONS:\n"
+ "Check JScrollPane correctly repaints the view"
+ " when UI scale has floating point value:\n"
+ "\n"
+ "1. Scroll down the JScrollPane\n"
+ "2. Select some values\n"
+ "If the scrolled selected value is painted without artifacts,"
+ "press PASS, else press FAIL.";
public static void main(String args[]) throws Exception {
countDownLatch = new CountDownLatch(1);
SwingUtilities.invokeLater(RepaintManagerFPUIScaleTest::createUI);
countDownLatch.await(15, TimeUnit.MINUTES);
if (!testResult) {
throw new RuntimeException("Test fails!");
}
}
private static void createUI() {
final JFrame mainFrame = new JFrame("Motif L&F icons test");
GridBagLayout layout = new GridBagLayout();
JPanel mainControlPanel = new JPanel(layout);
JPanel resultButtonPanel = new JPanel(layout);
GridBagConstraints gbc = new GridBagConstraints();
JComponent testPanel = createComponent();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.fill = GridBagConstraints.HORIZONTAL;
mainControlPanel.add(testPanel, gbc);
JTextArea instructionTextArea = new JTextArea();
instructionTextArea.setText(INSTRUCTIONS);
instructionTextArea.setEditable(false);
instructionTextArea.setBackground(Color.white);
gbc.gridx = 0;
gbc.gridy = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
mainControlPanel.add(instructionTextArea, gbc);
JButton passButton = new JButton("Pass");
passButton.setActionCommand("Pass");
passButton.addActionListener((ActionEvent e) -> {
testResult = true;
mainFrame.dispose();
countDownLatch.countDown();
});
JButton failButton = new JButton("Fail");
failButton.setActionCommand("Fail");
failButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
mainFrame.dispose();
countDownLatch.countDown();
}
});
gbc.gridx = 0;
gbc.gridy = 0;
resultButtonPanel.add(passButton, gbc);
gbc.gridx = 1;
gbc.gridy = 0;
resultButtonPanel.add(failButton, gbc);
gbc.gridx = 0;
gbc.gridy = 2;
mainControlPanel.add(resultButtonPanel, gbc);
mainFrame.add(mainControlPanel);
mainFrame.pack();
mainFrame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mainFrame.dispose();
countDownLatch.countDown();
}
});
mainFrame.setVisible(true);
}
private static JComponent createComponent() {
int N = 100;
String[] data = new String[N];
for (int i = 0; i < N; i++) {
data[i] = "Floating point test List Item: " + i;
}
JList list = new JList(data);
list.setCellRenderer(new TestListCellRenderer());
JScrollPane scrollPane = new JScrollPane(list);
return scrollPane;
}
private static Color[] COLORS = {
Color.RED, Color.ORANGE, Color.GREEN, Color.BLUE, Color.GRAY
};
private static Image createTestImage(int width, int height, int colorindex) {
Color color = COLORS[colorindex % COLORS.length];
AffineTransform tx = GraphicsEnvironment
.getLocalGraphicsEnvironment()
.getDefaultScreenDevice()
.getDefaultConfiguration()
.getDefaultTransform();
Image baseImage = createTestImage(width, height, 1, 1, color);
Image rvImage = createTestImage(width, height, tx.getScaleX(), tx.getScaleY(), color);
return new BaseMultiResolutionImage(baseImage, rvImage);
}
private static Image createTestImage(int w, int h,
double scaleX, double scaleY, Color color) {
int width = (int) Math.ceil(scaleX * w);
int height = (int) Math.ceil(scaleY * h);
BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g = img.createGraphics();
g.setColor(Color.WHITE);
g.fillRect(0, 0, width, height);
g.scale(scaleX, scaleY);
g.setColor(color);
int d = 1;
int d2 = 2 * d;
g.drawLine(d, h / 2, w - d2, h / 2);
g.drawLine(w / 2, d, w / 2, h - d2);
g.drawRect(d, d, w - d2, h - d2);
g.dispose();
return img;
}
static class TestListCellRenderer extends DefaultListCellRenderer {
public Component getListCellRendererComponent(
JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus) {
Component retValue = super.getListCellRendererComponent(
list, value, index, isSelected, cellHasFocus
);
setIcon(new ImageIcon(createTestImage(20, 10, index)));
return retValue;
}
}
}
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