--- /dev/null 2017-03-02 17:38:09.000000000 +0300 +++ new/test/java/awt/Robot/HiDPIScreenCapture/RobotMultiDPIScreenTest.java 2017-03-02 17:38:09.126322800 +0300 @@ -0,0 +1,269 @@ +/* + * Copyright (c) 2017, 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.BasicStroke; +import java.awt.BorderLayout; +import java.awt.Color; +import java.awt.Dimension; +import java.awt.Graphics; +import java.awt.Graphics2D; +import java.awt.GraphicsConfiguration; +import java.awt.GraphicsDevice; +import java.awt.GraphicsEnvironment; +import java.awt.GridBagConstraints; +import java.awt.GridBagLayout; +import java.awt.Image; +import java.awt.Rectangle; +import java.awt.Robot; +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.BufferedImage; +import java.awt.image.MultiResolutionImage; +import java.util.List; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.TimeUnit; +import javax.swing.JButton; +import javax.swing.JFrame; +import javax.swing.JPanel; +import javax.swing.JTextArea; +import javax.swing.SwingUtilities; + +/* @test + * @bug 8173972 + * @summary createScreenCapture not working as expected on multimonitor setup + * with different DPI scales. + * @run main/manual/othervm RobotMultiDPIScreenTest + */ +public class RobotMultiDPIScreenTest { + + private static volatile boolean testResult = false; + private static volatile CountDownLatch countDownLatch; + private static JFrame mainFrame; + private static Rectangle maxBounds; + private static Rectangle[] screenBounds; + private static double[][] scales; + + private static final String INSTRUCTIONS = "INSTRUCTIONS:\n" + + "Verify that screenshots are properly taken from monitors" + + " with different DPI.\n" + + "\n" + + "The test is applicable for a multi-monitor system where displays" + + " are configured to have different DPI\n" + + "\n" + + "1. Press Take Screenshots button\n" + + "Check that screenshots shown on the panel are properly taken.\n"; + + public static void main(String args[]) throws Exception { + + countDownLatch = new CountDownLatch(1); + SwingUtilities.invokeLater(RobotMultiDPIScreenTest::createUI); + countDownLatch.await(15, TimeUnit.MINUTES); + if (!testResult) { + throw new RuntimeException("Test fails!"); + } + } + + private static void createUI() { + + initScreenBounds(); + + mainFrame = new JFrame("DPI change test"); + GridBagLayout layout = new GridBagLayout(); + JPanel mainControlPanel = new JPanel(layout); + JPanel resultButtonPanel = new JPanel(layout); + + GridBagConstraints gbc = new GridBagConstraints(); + + JPanel testPanel = new JPanel(new BorderLayout()); + + final BufferedImage screensImage = getScreenImages(); + final JPanel screensPanel = new JPanel() { + + @Override + public void paint(Graphics g) { + super.paint(g); + g.drawImage(screensImage, 0, 0, getWidth(), getHeight(), this); + } + }; + + screensPanel.setPreferredSize(new Dimension(400, 200)); + + JButton frameButton = new JButton("Take Screenshots"); + frameButton.addActionListener((e) -> { + + try { + Robot robot = new Robot(); + Graphics2D g = screensImage.createGraphics(); + g.translate(-maxBounds.x, -maxBounds.y); + + for (Rectangle rect : screenBounds) { + MultiResolutionImage mrImage = robot.createMultiResolutionScreenCapture(rect); + + List resolutionVariants = mrImage.getResolutionVariants(); + Image rvImage = resolutionVariants.get(resolutionVariants.size() - 1); + g.drawImage(rvImage, rect.x, rect.y, rect.width, rect.height, null); + } + + g.dispose(); + screensPanel.repaint(); + } catch (Exception ex) { + throw new RuntimeException(ex); + } + }); + + testPanel.add(screensPanel, BorderLayout.CENTER); + testPanel.add(frameButton, BorderLayout.SOUTH); + + 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; + disposeFrames(); + countDownLatch.countDown(); + + }); + + JButton failButton = new JButton("Fail"); + failButton.setActionCommand("Fail"); + failButton.addActionListener(new ActionListener() { + @Override + public void actionPerformed(ActionEvent e) { + disposeFrames(); + 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) { + disposeFrames(); + countDownLatch.countDown(); + } + }); + mainFrame.setVisible(true); + } + + private static void disposeFrames() { + if (mainFrame != null && mainFrame.isVisible()) { + mainFrame.dispose(); + } + } + + static void initScreenBounds() { + + GraphicsDevice[] devices = GraphicsEnvironment + .getLocalGraphicsEnvironment() + .getScreenDevices(); + + screenBounds = new Rectangle[devices.length]; + scales = new double[devices.length][2]; + for (int i = 0; i < devices.length; i++) { + GraphicsConfiguration gc = devices[i].getDefaultConfiguration(); + screenBounds[i] = gc.getBounds(); + AffineTransform tx = gc.getDefaultTransform(); + scales[i][0] = tx.getScaleX(); + scales[i][1] = tx.getScaleY(); + } + + maxBounds = screenBounds[0]; + for (int i = 0; i < screenBounds.length; i++) { + maxBounds = maxBounds.union(screenBounds[i]); + } + } + + private static Rectangle getCenterRect(Rectangle rect) { + int w = rect.width / 2; + int h = rect.height / 2; + int x = rect.x + w / 2; + int y = rect.y + h / 2; + + return new Rectangle(x, y, w, h); + } + + static BufferedImage getScreenImages() { + + final BufferedImage img = new BufferedImage(maxBounds.width, maxBounds.height, BufferedImage.TYPE_INT_RGB); + Graphics2D g = img.createGraphics(); + g.setColor(Color.WHITE); + g.fillRect(0, 0, maxBounds.width, maxBounds.height); + g.translate(-maxBounds.x, -maxBounds.y); + + g.setStroke(new BasicStroke(8f)); + for (int i = 0; i < screenBounds.length; i++) { + Rectangle r = screenBounds[i]; + g.setColor(Color.BLACK); + g.drawRect(r.x, r.y, r.width, r.height); + + g.setColor(Color.ORANGE); + Rectangle cr = getCenterRect(r); + g.fillRect(cr.x, cr.y, cr.width, cr.height); + + double scaleX = scales[i][0]; + double scaleY = scales[i][1]; + float fontSize = maxBounds.height / 7; + g.setFont(g.getFont().deriveFont(fontSize)); + g.setColor(Color.BLUE); + g.drawString(String.format("Scale: [%2.1f, %2.1f]", scaleX, scaleY), + r.x + r.width / 8, r.y + r.height / 2); + + } + + g.dispose(); + + return img; + } +}