| /* |
| * |
| * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * - Neither the name of Oracle nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package java2d; |
| |
| |
| import java.awt.Component; |
| import java.awt.Image; |
| import java.awt.MediaTracker; |
| import java.net.URL; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| |
| /** |
| * A collection of all the demo images found in the images directory. |
| * Certain classes are preloaded; the rest are loaded lazily. |
| */ |
| @SuppressWarnings("serial") |
| public class DemoImages extends Component { |
| |
| private static final String[] names = { |
| "bld.jpg", "boat.png", "box.png", |
| "boxwave.png", "clouds.jpg", "duke.gif", "duke.running.gif", |
| "dukeplug.png", "fight.png", "globe.png", |
| "jumptojavastrip.png", "magnify.png", "painting.png", |
| "remove.gif", "snooze.png", "star7.gif", "surfing.png", |
| "thumbsup.png", "tip.png", "duke.png", "print.gif", |
| "loop.gif", "looping.gif", "start.gif", "start2.gif", |
| "stop.gif", "stop2.gif", "clone.gif" |
| }; |
| private static final Map<String, Image> cache = |
| new ConcurrentHashMap<String, Image>(names.length); |
| |
| private DemoImages() { |
| } |
| |
| public static void newDemoImages() { |
| DemoImages demoImages = new DemoImages(); |
| for (String name : names) { |
| cache.put(name, getImage(name, demoImages)); |
| } |
| } |
| |
| |
| /* |
| * Gets the named image using the toolkit of the specified component. |
| * Note that this has to work even before we have had a chance to |
| * instantiate DemoImages and preload the cache. |
| */ |
| public static Image getImage(String name, Component cmp) { |
| Image img = null; |
| if (cache != null) { |
| if ((img = cache.get(name)) != null) { |
| return img; |
| } |
| } |
| |
| ClassLoader cl = cmp.getClass().getClassLoader(); |
| URL fileLoc = cl.getResource("images/" + name); |
| img = cmp.getToolkit().getImage(fileLoc); |
| |
| MediaTracker tracker = new MediaTracker(cmp); |
| tracker.addImage(img, 0); |
| try { |
| tracker.waitForID(0); |
| if (tracker.isErrorAny()) { |
| System.out.println("Error loading image " + name); |
| } |
| } catch (Exception ex) { |
| Logger.getLogger(DemoImages.class.getName()).log(Level.SEVERE, null, ex); |
| } |
| return img; |
| } |
| } |