Java example source code file (Test4783068.java)

This example Java source code file (Test4783068.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, color, dimension, error, exception, gui, image, jbutton, jeditorpane, laf, metallookandfeel, runnable, runtimeexception, string, swing, test4783068, test_color, this

The Test4783068.java Java example source code

/*
 * Copyright (c) 2007, 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.
 */

/* @test
   @bug 4783068
   @summary Disabled components should render grayed-out HTML
   @author Peter Zhelezniakov
   @run main Test4783068
*/

import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
import javax.swing.plaf.metal.MetalLookAndFeel;

public class Test4783068 {
    final static Color TEST_COLOR = Color.WHITE;

    final static String html = "<html>" +
                  "This is a <font color='red'>colored text" +
                  "<p>with a link" +
                  "<ul>an unordered
list" +
                  "<ol>
and an ordered
list" +
                  "</html>";


    void test() {
        try {
            UIManager.setLookAndFeel(new MetalLookAndFeel());
        } catch (UnsupportedLookAndFeelException e) {
            throw new Error("Cannot set Metal LAF");
        }
        // Render text using background color
        UIManager.put("textInactiveText", TEST_COLOR);

        test(new JLabel(html));
        test(new JButton(html));

        JEditorPane pane = new JEditorPane("text/html", html);
        pane.setDisabledTextColor(TEST_COLOR);
        test(pane);
    }

    void test(JComponent c) {
        c.setEnabled(false);
        c.setOpaque(true);
        c.setBackground(TEST_COLOR);
        c.setBorder(null);
        Dimension size = c.getPreferredSize();
        c.setBounds(0, 0, size.width, size.height);

        BufferedImage image = new BufferedImage(size.width, size.height, BufferedImage.TYPE_INT_ARGB);
        c.paint(image.getGraphics());

        int rgb = TEST_COLOR.getRGB();
        for (int i = 0; i < size.height; i++) {
            for (int j = 0; j < size.width; j++) {
                if (image.getRGB(j, i) != rgb) {
                    throw new RuntimeException(
                            String.format("Color mismatch at [%d, %d]", j, i));
                }
            }
        }
    }

    public static void main(String[] args) throws Exception {
        SwingUtilities.invokeAndWait(new Runnable() {
            @Override public void run() {
                new Test4783068().test();
            }
        });
    }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java Test4783068.java source code file:

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.

... this post is sponsored by my books ...
#1 New Release!	FP Best Seller

Java example source code file (Test4783068.java)

Java - Java tags/keywords

The Test4783068.java Java example source code

Other Java examples (source code examples)

new blog posts