JFrame frame = new JFrame("Hack 4: Lists Aware Combo Box");
Container root = frame.getContentPane();
root.setLayout(new BoxLayout(root,BoxLayout.X_AXIS));
// List combo box
final List list = new ArrayList();
list.add("Blinky");
list.add("Pinky");
list.add("Inky");
final ListComboBoxModel mod2 = new ListComboBoxModel(list);
JComboBox cb2 = new JComboBox();
cb2.setModel(mod2);
root.add(cb2);
final JButton bt2 = new JButton("Add Item");
bt2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
list.add("Clyde");
mod2.actionPerformed(new ActionEvent(bt2,0,"update"));
}
});
root.add(bt2);
// Map Combo Box
final Map map = new HashMap();
map.put("Red", "#ff0000");
map.put("Green", "#00ff00");
map.put("Blue", "#0000ff");
final MapComboBoxModel mod3 = new MapComboBoxModel(map);
final JComboBox cb3 = new JComboBox();
cb3.setModel(mod3);
root.add(cb3);
final JButton bt3 = new JButton("Test Selection");
bt3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
System.out.println("Human color: " + cb3.getSelectedItem());
System.out.println("Computer color: " + mod3.getValue(cb3.getSelectedIndex()));
}
});
root.add(bt3);
// show the frame
frame.pack();
frame.setVisible(true);
