*
* @author niki
*/
-public class ListenerPanel extends JPanel {
+public class ListenerPanel extends JPanel implements ListenerItem {
private static final long serialVersionUID = 1L;
/** Waiting queue until at least one listener is here to get the events. */
waitingQueue = new LinkedList<ActionEvent>();
}
- /**
- * Check that this {@link ListenerPanel} currently has
- * {@link ActionListener}s that listen on it.
- *
- * @return TRUE if it has
- */
+ @Override
public synchronized boolean hasListeners() {
return listenerList.getListenerList().length > 1;
}
- /**
- * Check how many events are currently waiting for an
- * {@link ActionListener}.
- *
- * @return the number of waiting events (can be 0)
- */
+ @Override
public synchronized int getWaitingEventCount() {
return waitingQueue.size();
}
- /**
- * Adds the specified action listener to receive action events from this
- * {@link ListenerPanel}.
- *
- * @param listener
- * the action listener to be added
- */
+ @Override
public synchronized void addActionListener(ActionListener listener) {
if (!hasListeners()) {
while (!waitingQueue.isEmpty()) {
listenerList.add(ActionListener.class, listener);
}
- /**
- * Removes the specified action listener so that it no longer receives
- * action events from this {@link ListenerPanel}.
- *
- * @param listener
- * the action listener to be removed
- */
+ @Override
public synchronized void removeActionListener(ActionListener listener) {
listenerList.remove(ActionListener.class, listener);
}
- /**
- * Notify the listeners of an action.
- *
- * @param listenerCommand
- * A string that may specify a command (possibly one of several)
- * associated with the event
- */
- protected synchronized void fireActionPerformed(String listenerCommand) {
+ @Override
+ public synchronized void fireActionPerformed(String listenerCommand) {
ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED,
listenerCommand);