/* * 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.FlowLayout; import java.awt.Font; 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.HeadlessException; import java.awt.Image; import java.awt.Insets; import java.awt.Rectangle; 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.AbstractMultiResolutionImage; import java.awt.image.BufferedImage; import java.awt.image.ImageObserver; import java.util.Arrays; import java.util.Collections; import java.util.List; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.SwingUtilities; /* @test * @bug 8175293 8176097 * @summary Window set location to a display with different DPI does not properly work * @run main/manual/othervm WindowResizingOnSetLocationTest */ public class WindowResizingOnSetLocationTest { private static volatile boolean testResult = false; private static volatile CountDownLatch countDownLatch; private static TestFrame frame; private static JFrame mainFrame; private static Rectangle[] screenBounds; private static double[][] scales; private static int screen1 = -1; private static int screen2 = -1; private static final String INSTRUCTIONS = "INSTRUCTIONS:\n" + "Verify that a window is properly resized after setting the location" + " to a display 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 Show Frame button\n" + " (note that the button is disabled in case there are no two monitors" + " with different DPI)\n" + "The frame should appear in the center of the display (either" + " on the first or on the second).\n" + "2. Check that the string \"scales [ScaleX, ScaleY]\" is painted on the window" + " where ScaleX and ScaleY are the scales for current display.\n" + "The scales are calculated as DPI / 96 and are 1 for the DPI value 96" + " and 2 for the DPI value 192.\n" + "3. Press 'Move to another display' button.\n" + "4. Check that the frame appears on the another display.\n" + "5. Check that the string \"scales [ScaleX, ScaleY]\" is updated" + " to show the right display scales.\n" + "6. Check that the window is properly resized.\n" + "7. Check that the window is properly repainted and does not contain drawing artifacts\n" + "If all tests are passed, press PASS, else press FAIL.\n"; public static void main(String args[]) throws Exception { countDownLatch = new CountDownLatch(1); SwingUtilities.invokeLater(WindowResizingOnSetLocationTest::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()); JButton frameButton = new JButton("Show Frame"); frameButton.addActionListener((e) -> { GraphicsConfiguration gc = GraphicsEnvironment .getLocalGraphicsEnvironment() .getScreenDevices()[screen1] .getDefaultConfiguration(); Rectangle rect = getCenterRect(screenBounds[screen2]); frame = new TestFrame(gc, rect); frame.setVisible(true); }); frameButton.setEnabled(screen1 != -1 && screen2 != -1); testPanel.add(getDisplaysComponent(), 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 (frame != null && frame.isVisible()) { frame.dispose(); } 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(); } for (int i = 0; i < devices.length; i++) { for (int j = i + 1; j < devices.length; j++) { if (scales[i][0] != scales[j][0] || scales[i][1] != scales[j][1]) { screen1 = i; screen2 = j; } } } } 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 JComponent getDisplaysComponent() { Rectangle rect = screenBounds[0]; for (int i = 0; i < screenBounds.length; i++) { rect = rect.union(screenBounds[i]); } final BufferedImage img = new BufferedImage(rect.width, rect.height, BufferedImage.TYPE_INT_RGB); Graphics2D g = img.createGraphics(); g.setColor(Color.WHITE); g.fillRect(0, 0, rect.width, rect.height); g.translate(-rect.x, -rect.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 = rect.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(); JPanel panel = new JPanel() { @Override public void paint(Graphics g) { super.paint(g); g.drawImage(img, 0, 0, getWidth(), getHeight(), this); } }; panel.setPreferredSize(new Dimension(400, 200)); return panel; } static class TestFrame extends JFrame { private final TestMultiResolutionImage mrImage; public TestFrame(GraphicsConfiguration gc, Rectangle rect) throws HeadlessException { super(gc); setBounds(rect); mrImage = new TestMultiResolutionImage(rect.width, rect.height); JPanel panel = new JPanel(new FlowLayout()) { @Override public void paint(Graphics g) { super.paint(g); AffineTransform tx = ((Graphics2D) g).getTransform(); mrImage.scaleX = tx.getScaleX(); mrImage.scaleY = tx.getScaleY(); Insets insets = getInsets(); g.drawImage(mrImage, insets.left, insets.bottom, null); } }; JButton button = new JButton("Move to another display"); button.addActionListener((e) -> { GraphicsConfiguration config = getGraphicsConfiguration(); GraphicsDevice[] devices = GraphicsEnvironment .getLocalGraphicsEnvironment() .getScreenDevices(); int index = devices[screen1].getDefaultConfiguration().equals(config) ? screen2 : screen1; Rectangle r = getCenterRect(screenBounds[index]); frame.setBounds(r); }); panel.add(button); add(panel); } } static class TestMultiResolutionImage extends AbstractMultiResolutionImage { final int width; final int height; double scaleX; double scaleY; public TestMultiResolutionImage(int width, int height) { this.width = width; this.height = height; } @Override public int getWidth(ImageObserver observer) { return width; } @Override public int getHeight(ImageObserver observer) { return height; } @Override protected Image getBaseImage() { return getResolutionVariant(width, height); } @Override public Image getResolutionVariant(double destImageWidth, double destImageHeight) { int w = (int) destImageWidth; int h = (int) destImageHeight; BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); Graphics2D g = img.createGraphics(); g.scale(scaleX, scaleY); int red = (int) (255 / scaleX); int green = (int) (250 / scaleX); int blue = (int) (20 / scaleX); g.setColor(new Color(red, green, blue)); g.fillRect(0, 0, width, height); g.setColor(Color.decode("#87CEFA")); Font f = g.getFont(); g.setFont(new Font(f.getName(), Font.BOLD, 24)); g.drawString(String.format("scales: [%1.2fx, %1.2fx]", scaleX, scaleY), width / 6, height / 2); g.dispose(); return img; } @Override public List getResolutionVariants() { return Collections.unmodifiableList(Arrays.asList(getBaseImage())); } } }