/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package pivot.tutorials.lists;
import java.net.URL;
import pivot.collections.Dictionary;
import pivot.wtk.Application;
import pivot.wtk.ApplicationContext;
import pivot.wtk.Component;
import pivot.wtk.Display;
import pivot.wtk.ImageView;
import pivot.wtk.ListButton;
import pivot.wtk.ListButtonSelectionListener;
import pivot.wtk.Window;
import pivot.wtk.media.Image;
import pivot.wtkx.WTKXSerializer;
public class ListButtons implements Application {
private class ListButtonSelectionHandler
implements ListButtonSelectionListener {
@SuppressWarnings("unchecked")
public void selectedIndexChanged(ListButton listButton, int previousIndex) {
int index = listButton.getSelectedIndex();
if (index != -1) {
String item = (String)listButton.getListData().get(index);
// Get the image URL for the selected item
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
URL imageURL = classLoader.getResource("pivot/tutorials/" + item);
// If the image has not been added to the resource cache yet,
// add it
Image image = (Image)ApplicationContext.getResourceCache().get(imageURL);
if (image == null) {
image = Image.load(imageURL);
ApplicationContext.getResourceCache().put(imageURL, image);
}
// Update the image
imageView.setImage(image);
}
}
}
private ImageView imageView = null;
private Window window = null;
public void startup(Display display, Dictionary<String, String> properties) throws Exception {
WTKXSerializer wtkxSerializer = new WTKXSerializer();
Component content =
(Component)wtkxSerializer.readObject("pivot/tutorials/lists/list_buttons.wtkx");
imageView = (ImageView)wtkxSerializer.getObjectByName("imageView");
ListButton listButton =
(ListButton)wtkxSerializer.getObjectByName("listButton");
listButton.getListButtonSelectionListeners().add(new
ListButtonSelectionHandler());
listButton.setSelectedIndex(0);
window = new Window();
window.setContent(content);
window.setMaximized(true);
window.open(display);
}
public boolean shutdown(boolean optional) {
window.close();
return true;
}
public void suspend() {
}
public void resume() {
}
}