Toggle Buttons - The Definitive Guide to Java Swing - page 128

public static void main(String args[]) {
Runnable runner = new Runnable() {
public void run() {
JFrame frame = new JFrame("Selecting CheckBox");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JCheckBox checkBox = new JCheckBox(DESELECTED_LABEL);
// Define ActionListener
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
AbstractButton abstractButton =
(AbstractButton)actionEvent.getSource();
boolean selected = abstractButton.getModel().isSelected();
String newLabel = (selected ? SELECTED_LABEL : DESELECTED_LABEL);
abstractButton.setText(newLabel);
}
};
// Define ChangeListener
ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
AbstractButton abstractButton =
(AbstractButton)changeEvent.getSource();
ButtonModel buttonModel = abstractButton.getModel();
boolean armed = buttonModel.isArmed();
boolean pressed = buttonModel.isPressed();
boolean selected = buttonModel.isSelected();
System.out.println("Changed: " + armed + "/" + pressed + "/" +
selected);
}
};
// Define ItemListener
ItemListener itemListener = new ItemListener() {
public void itemStateChanged(ItemEvent itemEvent) {
AbstractButton abstractButton =
(AbstractButton)itemEvent.getSource();
Color foreground = abstractButton.getForeground();
Color background = abstractButton.getBackground();
int state = itemEvent.getStateChange();
if (state == ItemEvent.SELECTED) {
abstractButton.setForeground(background);
abstractButton.setBackground(foreground);
}
}
};
// Attach Listeners
checkBox.addActionListener(actionListener);
checkBox.addChangeListener(changeListener);
checkBox.addItemListener(itemListener);