/*******************************************************************************
 *  Copyright (c) 2012 Google, Inc.
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 *  
 *  Contributors:
 *  Google, Inc. - initial API and implementation
 *******************************************************************************/
package swing.samples;


//: c14:List.java
//<applet code=List width=250 height=375></applet>
//From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
//www.BruceEckel.com. See copyright notice in CopyRight.txt.

import java.awt.Color;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BorderFactory;
import javax.swing.DefaultListModel;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JTextArea;
import javax.swing.border.Border;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class AppletDemo extends JApplet {
private String[] flavors = { "Chocolate", "Strawberry",
   "Vanilla Fudge Swirl", "Mint Chip", "Mocha Almond Fudge",
   "Rum Raisin", "Praline Cream", "Mud Pie" };

private DefaultListModel lItems = new DefaultListModel();

private JList lst = new JList(lItems);

private JTextArea t = new JTextArea(flavors.length, 20);

private JButton b = new JButton("Add Item");

private ActionListener bl = new ActionListener() {
 public void actionPerformed(ActionEvent e) {
   if (count < flavors.length) {
     lItems.add(0, flavors[count++]);
   } else {
     // Disable, since there are no more
     // flavors left to be added to the List
     b.setEnabled(false);
   }
 }
};

private ListSelectionListener ll = new ListSelectionListener() {
 public void valueChanged(ListSelectionEvent e) {
   if (e.getValueIsAdjusting())
     return;
   t.setText("");
   Object[] items = lst.getSelectedValues();
   for (int i = 0; i < items.length; i++)
     t.append(items[i] + "\n");
 }
};

private int count = 0;

public void init() {
 Container cp = getContentPane();
 t.setEditable(false);
 cp.setLayout(new FlowLayout());
 // Create Borders for components:
 Border brd = BorderFactory.createMatteBorder(1, 1, 2, 2, Color.BLACK);
 lst.setBorder(brd);
 t.setBorder(brd);
 // Add the first four items to the List
 for (int i = 0; i < 4; i++)
   lItems.addElement(flavors[count++]);
 // Add items to the Content Pane for Display
 cp.add(t);
 cp.add(lst);
 cp.add(b);
 // Register event listeners
 lst.addListSelectionListener(ll);
 b.addActionListener(bl);
}

public static void main(String[] args) {
 run(new AppletDemo(), 250, 375);
}

public static void run(JApplet applet, int width, int height) {
 JFrame frame = new JFrame();
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 frame.getContentPane().add(applet);
 frame.setSize(width, height);
 applet.init();
 applet.start();
 frame.setVisible(true);
}
} ///:~