/*
* 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.
*/
/*
* @test
* @bug 8165212
* @summary This manual test case displays scale values of Graphics and the
* underlying device configuration. Any change to host display's DPI
* value should reflect corresponding changes in the scale values
* of both Frame and Backbuffer (VolatileImage).
* @run main/othervm/manual -Dsun.java2d.d3d=false -Dsun.java2d.opengl=false VolatileImageConfigurationTest
*/
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.AffineTransform;
import java.awt.image.VolatileImage;
import java.awt.HeadlessException;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JButton;
import javax.swing.SwingUtilities;
public class VolatileImageConfigurationTest
extends JFrame
implements ActionListener {
/* Test frame and completion status */
private static JFrame testFrame;
private static volatile boolean testComplete = false;
private static volatile boolean testResult = false;
/* Main frame's dimensions */
private static final int TEST_WIDTH = 600;
private static final int TEST_HEIGHT = 600;
private static final int TEST_MIN_DURATION = 3000;
private static final int TEST_TOTAL_DURATION = 45000;
/*
* Frame will display information text explaining how to run the manual
* test, and two buttons- Pass and Fail to determine the end-result.
*/
private JTextArea infoTextArea;
private JPanel buttonPanel;
private JPanel testPanel;
private JButton passButton;
private JButton failButton;
public VolatileImageConfigurationTest() {
/* Default constructor. Initialize the UI components */
super("Volatile Image Configuration Update Test");
initComponents();
}
private void initComponents() {
/* Create the text area with steps to execute the test */
String description
= "\n Volatile Image Configuration Update Test.\n"
+ " 1. The test displays scale values of component and the"
+ " underlying graphics device configuration.\n"
+ " 2. Kindly change the display's DPI settings from OS"
+ " control panel and observe the application.\n"
+ " 3. Select Pass if the scale values for both component & "
+ "underlying device configuration are updated as per the "
+ "\ndisplay's DPI value.\n";
infoTextArea = new JTextArea(description);
/* Create the test panel where user will observe the drawing */
testPanel = new DisplayPanel();
/* Create the buttons with event listeners */
passButton = new JButton("Pass");
passButton.setActionCommand("Pass");
passButton.setEnabled(true);
passButton.addActionListener(this);
failButton = new JButton("Fail");
failButton.setActionCommand("Fail");
failButton.setEnabled(true);
failButton.addActionListener(this);
/* Add the buttons to a separate panel with flowlayout */
buttonPanel = new JPanel(new FlowLayout());
buttonPanel.add(passButton);
buttonPanel.add(failButton);
/* Add all the created components to the master frame */
setLayout(new BorderLayout(10, 10));
add(infoTextArea, BorderLayout.NORTH);
add(buttonPanel, BorderLayout.SOUTH);
add(testPanel, BorderLayout.CENTER);
/* Set the dimensions */
setSize(TEST_WIDTH, TEST_HEIGHT);
}
@Override
public void actionPerformed(ActionEvent e) {
/* Button event listener */
String command = e.getActionCommand();
if (command.equals("Pass")) {
/* Test has passed. Dispose the frame with success message */
testComplete = true;
testResult = true;
System.out.println("Test Passed.");
} else if (command.equals("Fail")) {
/* Test has failed. Dispose the frame and throw exception */
testComplete = true;
testResult = false;
}
}
private static void constructTestUI() {
/* Construct the test's user interface */
testFrame = new VolatileImageConfigurationTest();
testFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
testFrame.setLocationRelativeTo(null);
testFrame.setVisible(true);
}
private static void destructTestUI() {
/* Destroy the test's user interface */
testFrame.dispose();
}
static class DisplayPanel extends JPanel {
/* Display panel settings */
private static final int PANEL_WIDTH = 600;
private static final int PANEL_HEIGHT = 500;
private static final int PANEL_X = 20;
private static final int PANEL_Y = 80;
private static final String MSG = "%s scale: [%2.2f, %2.2f]";
private VolatileImage vImg;
public DisplayPanel() throws HeadlessException {
setSize(PANEL_WIDTH, PANEL_HEIGHT);
}
@Override
public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.WHITE);
g.fillRect(0, 0, PANEL_WIDTH, PANEL_HEIGHT);
/* Display graphics configuration values of the component */
drawInfo(g, PANEL_X, PANEL_Y, "Frame", Color.BLUE);
int attempts = 0;
do {
/* Display graphics configuration values of volatile image */
drawBackingStoreImage(g);
} while (vImg.contentsLost() && ++attempts < 3);
}
private void drawInfo(Graphics g, int x, int y,
String msg, Color color) {
g.setColor(color);
g.setFont(g.getFont().deriveFont(24f));
Graphics2D g2d = (Graphics2D) g;
AffineTransform tx = g2d.getTransform();
g.drawString(msg, x, y);
String text = String.format(MSG,
"Graphics",
tx.getScaleX(),
tx.getScaleY());
int dy = 20;
g.drawString(text, x, y + dy);
tx = g2d.getDeviceConfiguration().getDefaultTransform();
text = String.format(MSG,
"Device Config",
tx.getScaleX(),
tx.getScaleY());
g.drawString(text, x, y + 2 * dy);
}
private void drawBackingStoreImage(Graphics g) {
Graphics2D g2d = (Graphics2D) g;
GraphicsConfiguration gc = g2d.getDeviceConfiguration();
if (vImg == null ||
vImg.validate(gc) == VolatileImage.IMAGE_INCOMPATIBLE) {
/* Create a new volatile image */
vImg = createVolatileImage(PANEL_WIDTH, PANEL_HEIGHT / 3);
}
Graphics vImgGraphics = vImg.createGraphics();
vImgGraphics.setColor(Color.WHITE);
vImgGraphics.fillRect(0, 0, PANEL_WIDTH, PANEL_HEIGHT / 3);
drawInfo(vImgGraphics,
PANEL_X,
PANEL_Y,
"Backbuffer",
Color.MAGENTA);
g.drawImage(vImg, 0, PANEL_Y * 2, this);
}
}
public static void main(String[] args) throws Exception {
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
try {
/* Construct the test interface */
constructTestUI();
} catch (Exception ex) {
/* Throw an exception indicating error while creating UI */
throw new RuntimeException("Test Failed. Error while "
+ "creating the test interface.");
}
}
});
try {
/* Provide sufficient time for user to act upon the manual test */
long totalWaitDuration = 0;
do {
Thread.sleep(TEST_MIN_DURATION);
totalWaitDuration += TEST_MIN_DURATION;
} while (!testComplete && totalWaitDuration < TEST_TOTAL_DURATION);
} catch(InterruptedException ite) {
/* No-op. The thread continues execution further */
}
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
try {
/* Destroy the test interface */
destructTestUI();
} catch (Exception ex) {
/* No-op */
}
}
});
/* Check for the test result and throw exception if required */
if (testResult == false) {
throw new RuntimeException("Test Failed. Incorrect scale values "
+ "were seen during the test execution.");
}
}
}