about.java

J2ME PHOTO处理

/*
 *
 * Copyright © 2007 Sun Microsystems, Inc. All rights reserved.
 * Use is subject to license terms.
 */
package example;

import javax.microedition.lcdui.*;


/**
 * Typical about box with a string and an image.
 * In this case the Sun copyright and logo.
 */
public class About {
    /** Copyright notice */
    private static String copyright =
        "Copyright © 2007 Sun Microsystems, Inc.  All rights reserved.\n" +
        "Unpublished - rights reserved under the Copyright Laws of the United " +
        "States.Sun Microsystems, Inc. has intellectual property rights " +
        "relating to technology embodied in the product that is described in " +
        "this document. In particular, and without limitation, these " +
        "intellectual property rights may include one or more of the U.S. " +
        "patents listed at http://www.sun.com/patents and one or more " +
        "additional patents or pending patent applications in the U.S. and in " +
        "other countries.SUN PROPRIETARY/CONFIDENTIAL. U.S. Government Rights " +
        "- Commercial software.  Government users are subject to the Sun " +
        "Microsystems, Inc. standard license agreement and applicable " +
        "provisions of the FAR and its supplements.  Use is subject to license " +
        "terms.  This distribution may include materials developed by third " +
        "parties.Sun, Sun Microsystems, the Sun logo, Java and Jini are " +
        "trademarks or registered trademarks of Sun Microsystems, Inc. in the " +
        "U.S. and other countries.\n";

    /** the previous screen to go back to */
    private Displayable previous;

    /**
     * Do not allow anyone to create this class
     */
    private About() {
    }

    /**
     * Put up the About box and when the user click ok return
     * to the previous screen.
     * @param display The <code>Display</code> to return to when the
     *                 about screen is dismissed.
     */
    public static void showAbout(Display display) {
        Alert alert = new Alert("About MIDP");
        alert.setTimeout(Alert.FOREVER);

        if (display.numColors() > 2) {
            String icon =
                (display.isColor()) ? "/icons/JavaPowered-8.png" : "/icons/JavaPowered-2.png";

            try {
                Image image = Image.createImage(icon);
                alert.setImage(image);
            } catch (java.io.IOException x) {
                // just don't append the image.
            }
        }

        // Add the copyright
        alert.setString(copyright);

        display.setCurrent(alert);
    }
}