146 lines
5.4 KiB
Java
146 lines
5.4 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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/*
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* @test
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* @bug 8015854
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* @summary Tests HTML image as JButton text for unwanted padding
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* @run main HtmlButtonImageTest
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*/
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import java.nio.file.Path;
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import javax.imageio.ImageIO;
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import javax.swing.JButton;
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import javax.swing.SwingUtilities;
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import javax.swing.UIManager;
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import javax.swing.UnsupportedLookAndFeelException;
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import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
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public final class HtmlButtonImageTest {
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private static JButton button;
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private static Path testDir;
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private static BufferedImage image;
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private static final int BUTTON_HEIGHT = 37;
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private static final int BUTTON_WIDTH = 37;
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private static final int SQUARE_HEIGHT = 19;
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private static final int SQUARE_WIDTH = 19;
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private static final int centerX = BUTTON_WIDTH / 2;
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private static final int centerY = BUTTON_HEIGHT / 2;
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private static final int minX = centerX - (SQUARE_WIDTH / 2);
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private static final int minY = centerY - (SQUARE_HEIGHT / 2);
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private static final int maxX = centerX + (SQUARE_WIDTH / 2);
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private static final int maxY = centerY + (SQUARE_HEIGHT / 2);
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private static boolean supportedLaf;
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private static int failCount = 0;
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private static String currentLaf = new String();
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private static StringBuffer failedLafs = new StringBuffer();
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public static void main(String[] args) throws Exception {
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testDir = Path.of(System.getProperty("test.classes", "."));
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generateRedSquare();
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for (UIManager.LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
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SwingUtilities.invokeAndWait(() -> setLookAndFeel(laf));
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if(supportedLaf) {
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currentLaf = laf.getName();
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SwingUtilities.invokeAndWait(HtmlButtonImageTest::createButton);
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SwingUtilities.invokeAndWait(HtmlButtonImageTest::paintButton);
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testImageCentering(image.getRGB(centerX, centerY),
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image.getRGB(minX, minY),
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image.getRGB(minX, maxY),
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image.getRGB(maxX, minY),
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image.getRGB(maxX, maxY));
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}
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}
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if(!failedLafs.isEmpty()) {
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if(failCount > 1) {
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failedLafs.setLength(failedLafs.length() - 2);
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}
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throw new RuntimeException("HTML image not centered in button " +
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"for these L&F's: " + failedLafs);
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}
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}
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private static void generateRedSquare() throws IOException {
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BufferedImage bImg = new BufferedImage(SQUARE_WIDTH, SQUARE_HEIGHT,
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TYPE_INT_ARGB);
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Graphics2D cg = bImg.createGraphics();
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cg.setColor(Color.RED);
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cg.fillRect(0, 0, SQUARE_WIDTH, SQUARE_HEIGHT);
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ImageIO.write(bImg, "png", new File(testDir + "/red_square.png"));
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}
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private static void createButton() {
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button = new JButton();
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button.setSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
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button.setText("<html><img src='"
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+ testDir.resolve("red_square.png").toUri() + "'></html>");
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}
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private static void paintButton() {
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image = new BufferedImage(BUTTON_HEIGHT, BUTTON_WIDTH, TYPE_INT_ARGB);
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Graphics2D graphics2D = image.createGraphics();
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button.paint(graphics2D);
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graphics2D.dispose();
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}
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private static boolean checkRedColor(int rgb) {
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return (rgb == Color.RED.getRGB());
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}
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private static void testImageCentering(int... colors) throws IOException {
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for (int c : colors) {
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if (!checkRedColor(c)) {
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failCount++;
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ImageIO.write(image, "png", new File(testDir + "/fail_image_" +
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currentLaf.replaceAll("[^\\w\\s]","") + ".png"));
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failedLafs.append(currentLaf + ", ");
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break;
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}
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}
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}
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private static void setLookAndFeel(UIManager.LookAndFeelInfo laf) {
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try {
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UIManager.setLookAndFeel(laf.getClassName());
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supportedLaf = true;
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} catch (UnsupportedLookAndFeelException | ClassNotFoundException |
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InstantiationException | IllegalAccessException e) {
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supportedLaf = false;
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}
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}
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}
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