149 lines
6.2 KiB
Java
149 lines
6.2 KiB
Java
/*
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* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.awt.FlowLayout;
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import java.awt.Font;
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import java.awt.Graphics2D;
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import java.awt.Image;
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import java.awt.RenderingHints;
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import java.awt.event.WindowAdapter;
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import java.awt.event.WindowEvent;
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import java.awt.font.TextLayout;
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import java.awt.image.BufferedImage;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import java.util.stream.IntStream;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.JTextPane;
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import javax.swing.SwingUtilities;
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import javax.swing.WindowConstants;
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import javax.swing.border.EmptyBorder;
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/* @test
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* @bug 8276849
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* @summary Update the window icon on DPI scale factor changes
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* @requires os.family == "windows"
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* @run main/manual WindowIconUpdateOnDPIChangingTest
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*/
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public class WindowIconUpdateOnDPIChangingTest {
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private static volatile boolean testResult = false;
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private static final CountDownLatch countDownLatch = new CountDownLatch(1);
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private static JFrame frame;
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private static final String INSTRUCTIONS = "<html><body style=\"font-family: sans-serif\">\n"
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+ "<b>INSTRUCTIONS:</b>\n"
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+ "<p>Verify that the window icon is properly updated after changing the display DPI.</p>\n"
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+ "\n"
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+ "<p>The test is applicable for OSes that allows to change the display DPI\n"
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+ "without rebooting the system. Press <b>PASS</b> for other systems.</p>\n"
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+ "\n"
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+ "<ol>"
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+ " <li>Set the display DPI scale factor to 100%</li>"
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+ " <li>Check that the string \"16\" is painted in the window icon.</li>"
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+ " <li>Set the display DPI scale factor to a different value,"
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+ " or move the frame to another screen with a different DPI scale factor.</li>"
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+ " <li>Check that the window icon is updated, it should display \"24\" on a screen"
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+ " with a 150% DPI scaling, or \"32\" on a screen with a 200% DPI scaling."
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+ " <br>If so, press <b>PASS</b>, otherwise press <b>FAIL</b>.</li>"
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+ "<ol>\n"
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+ "</body>\n"
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+ "</html>\n";
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public static void main(String[] args) throws Exception {
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SwingUtilities.invokeLater(WindowIconUpdateOnDPIChangingTest::createUI);
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if (!countDownLatch.await(15, TimeUnit.MINUTES)) {
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SwingUtilities.invokeAndWait(() -> frame.dispose());
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throw new RuntimeException("Timed out!");
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} else if (!testResult) {
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throw new RuntimeException("Test fails!");
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}
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}
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private static void createUI() {
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frame = new JFrame("Window Icon Update Test");
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frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
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frame.setSize(640, 480);
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frame.addWindowListener(new WindowAdapter() {
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public void windowClosed(WindowEvent e) {
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countDownLatch.countDown();
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}
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});
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frame.getContentPane().setLayout(new BorderLayout());
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frame.getContentPane().add(createInstrumentsPane(), BorderLayout.CENTER);
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frame.getContentPane().add(createControlPanel(), BorderLayout.SOUTH);
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frame.setIconImages(IntStream.rangeClosed(16, 32).mapToObj(size -> createIcon(size)).toList());
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frame.setLocationRelativeTo(null);
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frame.setVisible(true);
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}
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private static JTextPane createInstrumentsPane() {
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JTextPane instructionsPane = new JTextPane();
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instructionsPane.setContentType("text/html");
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instructionsPane.setText(INSTRUCTIONS);
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instructionsPane.setEditable(false);
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instructionsPane.setBorder(new EmptyBorder(10, 10, 10, 10));
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return instructionsPane;
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}
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private static JPanel createControlPanel() {
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JButton passButton = new JButton("Pass");
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passButton.addActionListener(e -> testResult = true);
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passButton.addActionListener(e -> frame.dispose());
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JButton failButton = new JButton("Fail");
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failButton.addActionListener(e -> frame.dispose());
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JPanel controlPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
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controlPanel.add(passButton);
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controlPanel.add(failButton);
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return controlPanel;
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}
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/**
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* Creates an icon of the size specified. The size is drawn at the center of the icon.
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*
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* @param size the size of the icon
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*/
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private static Image createIcon(int size) {
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BufferedImage image = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
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Graphics2D g = image.createGraphics();
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g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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g.setColor(Color.WHITE);
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g.fillRect(0, 0, size, size);
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g.setFont(new Font("Dialog", Font.BOLD, 12));
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g.setColor(Color.BLACK);
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TextLayout layout = new TextLayout(String.valueOf(size), g.getFont(), g.getFontRenderContext());
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int height = (int) layout.getBounds().getHeight();
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int width = (int) layout.getBounds().getWidth();
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layout.draw(g, (size - width) / 2f - 1, (size + height) / 2f);
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return image;
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}
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}
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