undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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/*
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* Copyright (c) 2017, 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.Color;
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import java.awt.FlowLayout;
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import java.awt.Font;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Graphics2D;
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import java.awt.GridBagConstraints;
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import java.awt.GridBagLayout;
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import java.awt.HeadlessException;
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import java.awt.Image;
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import java.awt.Insets;
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import java.awt.Panel;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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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.geom.AffineTransform;
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import java.awt.image.AbstractMultiResolutionImage;
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import java.awt.image.BufferedImage;
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import java.awt.image.ImageObserver;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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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.JTextArea;
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import javax.swing.SwingUtilities;
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/* @test
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* @bug 8147440 8147016 8270874
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* @summary HiDPI (Windows): Swing components have incorrect sizes after
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* changing display resolution
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* @run main/manual/othervm WindowResizingOnMovingToAnotherDisplay
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*/
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public class WindowResizingOnMovingToAnotherDisplay {
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private static volatile boolean testResult = false;
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private static volatile CountDownLatch countDownLatch;
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private static TestFrame frame;
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private static JFrame mainFrame;
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private static final String INSTRUCTIONS = "INSTRUCTIONS:\n"
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+ "Verify that a window is properly resized after moving to a display"
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+ " with different DPI.\n"
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+ "\n"
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+ "The test is applicable for a multi-monitor system where displays"
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+ " are configured to have different DPI\n"
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+ "\n"
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+ "1. Press Show Frame button\n"
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+ "The frame appear.\n"
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+ "2. Check that the string \"scales [ScaleX, ScaleY]\" is painted on the window"
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+ " where ScaleX and ScaleY are the scales for current display.\n"
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+ "The scales are calculated as DPI / 96 and are 1 for the DPI value 96"
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+ " and 2 for the DPI value 192.\n"
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+ "3. Move the frame to the second display.\n"
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+ "4. Check that the string \"scales [ScaleX, ScaleY]\" is updated"
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+ " to show the right display scales.\n"
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+ "5. Check that the window is properly resized.\n"
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+ "6. Check that the window is properly repainted and does not contain drawing artifacts\n"
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+ "Try different display positions (left, right, top, bottom).\n"
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+ "If all tests are passed, press PASS, else press FAIL.\n";
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public static void main(String args[]) throws Exception {
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countDownLatch = new CountDownLatch(1);
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SwingUtilities.invokeLater(WindowResizingOnMovingToAnotherDisplay::createUI);
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countDownLatch.await(15, TimeUnit.MINUTES);
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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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mainFrame = new JFrame("DPI change test");
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GridBagLayout layout = new GridBagLayout();
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JPanel mainControlPanel = new JPanel(layout);
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JPanel resultButtonPanel = new JPanel(layout);
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GridBagConstraints gbc = new GridBagConstraints();
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JPanel testPanel = new JPanel(new FlowLayout());
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JButton frameButton = new JButton("Show Frame");
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frameButton.addActionListener((e) -> {
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int x = 20;
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int y = 10;
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int w = 400;
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int h = 300;
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frame = new TestFrame(w, h);
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frame.setLocation(x, y);
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frame.setVisible(true);
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});
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testPanel.add(frameButton);
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gbc.gridx = 0;
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gbc.gridy = 0;
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gbc.fill = GridBagConstraints.HORIZONTAL;
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mainControlPanel.add(testPanel, gbc);
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JTextArea instructionTextArea = new JTextArea();
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instructionTextArea.setText(INSTRUCTIONS);
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instructionTextArea.setEditable(false);
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instructionTextArea.setBackground(Color.white);
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gbc.gridx = 0;
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gbc.gridy = 1;
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gbc.fill = GridBagConstraints.HORIZONTAL;
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mainControlPanel.add(instructionTextArea, gbc);
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JButton passButton = new JButton("Pass");
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passButton.setActionCommand("Pass");
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passButton.addActionListener((ActionEvent e) -> {
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testResult = true;
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disposeFrames();
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countDownLatch.countDown();
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});
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JButton failButton = new JButton("Fail");
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failButton.setActionCommand("Fail");
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failButton.addActionListener(new ActionListener() {
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@Override
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public void actionPerformed(ActionEvent e) {
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disposeFrames();
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countDownLatch.countDown();
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}
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});
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gbc.gridx = 0;
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gbc.gridy = 0;
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resultButtonPanel.add(passButton, gbc);
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gbc.gridx = 1;
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gbc.gridy = 0;
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resultButtonPanel.add(failButton, gbc);
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gbc.gridx = 0;
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gbc.gridy = 2;
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mainControlPanel.add(resultButtonPanel, gbc);
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mainFrame.add(mainControlPanel);
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mainFrame.pack();
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mainFrame.addWindowListener(new WindowAdapter() {
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@Override
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public void windowClosing(WindowEvent e) {
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disposeFrames();
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countDownLatch.countDown();
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}
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});
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mainFrame.setVisible(true);
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}
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private static void disposeFrames() {
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if (frame != null && frame.isVisible()) {
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frame.dispose();
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}
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if (mainFrame != null && mainFrame.isVisible()) {
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mainFrame.dispose();
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}
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}
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static class TestFrame extends Frame {
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private final TestMultiResolutionImage mrImage;
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public TestFrame(int width, int height) throws HeadlessException {
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super("Test Frame");
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setSize(width, height);
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mrImage = new TestMultiResolutionImage(width, height);
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Panel panel = new Panel(new FlowLayout()) {
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@Override
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public void paint(Graphics g) {
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super.paint(g);
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AffineTransform tx = ((Graphics2D) g).getTransform();
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mrImage.scaleX = tx.getScaleX();
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mrImage.scaleY = tx.getScaleY();
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Insets insets = getInsets();
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g.drawImage(mrImage, insets.left, insets.bottom, null);
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}
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};
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add(panel);
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}
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}
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static class TestMultiResolutionImage extends AbstractMultiResolutionImage {
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final int width;
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final int height;
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double scaleX;
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double scaleY;
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public TestMultiResolutionImage(int width, int height) {
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this.width = width;
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this.height = height;
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}
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@Override
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public int getWidth(ImageObserver observer) {
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return width;
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}
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@Override
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public int getHeight(ImageObserver observer) {
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return height;
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}
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@Override
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protected Image getBaseImage() {
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return getResolutionVariant(width, height);
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}
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@Override
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public Image getResolutionVariant(double destImageWidth, double destImageHeight) {
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int w = (int) destImageWidth;
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int h = (int) destImageHeight;
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BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
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Graphics2D g = img.createGraphics();
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g.scale(scaleX, scaleY);
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int red = (int) (255 / scaleX);
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int green = (int) (250 / scaleX);
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int blue = (int) (20 / scaleX);
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g.setColor(new Color(red, green, blue));
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g.fillRect(0, 0, width, height);
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g.setColor(Color.decode("#87CEFA"));
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Font f = g.getFont();
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g.setFont(new Font(f.getName(), Font.BOLD, 24));
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g.drawString(String.format("scales: [%1.2fx, %1.2fx]", scaleX, scaleY),
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width / 6, height / 2);
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g.dispose();
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return img;
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}
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@Override
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public List<Image> getResolutionVariants() {
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return Collections.unmodifiableList(Arrays.asList(getBaseImage()));
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}
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}
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}
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