/*
* Notify all listeners that have registered interest for
* notification on this event type. The event instance
* is lazily created using the parameters passed into
* the fire method.
* @see EventListenerList
*/
protected void fireTreeStructureChanged(
Object source, Object[] path, int[] childIndices, Object[] children) {
// Guaranteed to return a non-null array
Object[] listeners = listenerList.getListenerList();
TreeModelEvent e = null;
// Process the listeners last to first, notifying
// those that are interested in this event
for (int i = listeners.length - 2; i >= 0; i -= 2) {
if (listeners[i] == TreeModelListener.class) {
// Lazily create the event:
if (e == null)
e =
new TreeModelEvent(
source, path,
childIndices, children);
((TreeModelListener) listeners[i + 1]).treeStructureChanged(e);
}
}
}
public void removeTreeModelListener(TreeModelListener l) {
listenerList.remove(TreeModelListener.class, l);
}
public void addTreeModelListener(TreeModelListener l) {
listenerList.add(TreeModelListener.class, l);
}