russell@unturf.com
0a580b313d
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.
120 lines
4.5 KiB
Java
120 lines
4.5 KiB
Java
/*
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* Copyright (c) 1999, 2025, 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.io.File;
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import java.io.IOException;
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import javax.imageio.ImageIO;
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import javax.swing.JComponent;
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import javax.swing.JLabel;
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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 javax.swing.plaf.nimbus.NimbusLookAndFeel;
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import static java.awt.image.BufferedImage.TYPE_INT_RGB;
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/*
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* @test
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* @bug 4248210
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* @key headful
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* @summary Tests that HTML in JLabel is painted using LAF-defined
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foreground color
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* @run main bug4248210
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*/
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public class bug4248210 {
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private static final Color labelColor = Color.red;
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public static void main(String[] args) throws Exception {
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for (UIManager.LookAndFeelInfo laf :
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UIManager.getInstalledLookAndFeels()) {
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if (!(laf.getName().contains("Motif") || laf.getName().contains("GTK"))) {
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System.out.println("Testing LAF: " + laf.getName());
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SwingUtilities.invokeAndWait(() -> test(laf));
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}
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}
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}
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private static void test(UIManager.LookAndFeelInfo laf) {
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setLookAndFeel(laf);
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if (UIManager.getLookAndFeel() instanceof NimbusLookAndFeel) {
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// reset "basic" properties
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UIManager.getDefaults().put("Label.foreground", null);
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// set "synth - nimbus" properties
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UIManager.getDefaults().put("Label[Enabled].textForeground", labelColor);
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} else {
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// reset "synth - nimbus" properties
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UIManager.getDefaults().put("Label[Enabled].textForeground", null);
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// set "basic" properties
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UIManager.getDefaults().put("Label.foreground", labelColor);
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}
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JLabel label = new JLabel("<html><body>\u2588 \u2588 \u2588 \u2588</body></html>");
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label.setSize(150, 30);
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BufferedImage img = paintToImage(label);
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if (!chkImgForegroundColor(img)) {
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try {
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ImageIO.write(img, "png", new File("Label_" + laf.getName() + ".png"));
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} catch (IOException ignored) {}
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throw new RuntimeException("JLabel not painted with LAF defined " +
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"foreground color");
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}
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System.out.println("Test Passed");
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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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} catch (UnsupportedLookAndFeelException ignored) {
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System.out.println("Unsupported LAF: " + laf.getClassName());
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} catch (ClassNotFoundException | InstantiationException
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| IllegalAccessException e) {
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throw new RuntimeException(e);
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}
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}
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private static BufferedImage paintToImage(JComponent content) {
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BufferedImage im = new BufferedImage(content.getWidth(), content.getHeight(),
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TYPE_INT_RGB);
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Graphics2D g = (Graphics2D) im.getGraphics();
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g.setBackground(Color.WHITE);
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g.clearRect(0, 0, content.getWidth(), content.getHeight());
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content.paint(g);
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g.dispose();
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return im;
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}
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private static boolean chkImgForegroundColor(BufferedImage img) {
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for (int x = 0; x < img.getWidth(); ++x) {
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for (int y = 0; y < img.getHeight(); ++y) {
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if (img.getRGB(x, y) == labelColor.getRGB()) {
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return true;
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}
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}
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}
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return false;
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}
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}
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