+ // TODO ideally this event notification functionality should be separated into
+ // a
+ // subclass of ViewportProperties similarly to ViewportRanges. Done here as
+ // quick fix for JAL-2665
+ public static final String SEQ_GROUP_CHANGED = "Sequence group changed";
+
+ protected PropertyChangeSupport changeSupport = new PropertyChangeSupport(
+ this);
+
+ public void addPropertyChangeListener(PropertyChangeListener listener)
+ {
+ changeSupport.addPropertyChangeListener(listener);
+ }
+
+ public void removePropertyChangeListener(PropertyChangeListener listener)
+ {
+ changeSupport.removePropertyChangeListener(listener);
+ }
+ // end of event notification functionality initialisation
+