+ /**
+ * register as a listener for notifyFeaturesChanged events
+ *
+ * @param ourListener
+ */
+ void addPropertyChangeListener(PropertyChangeListener ourListener);
+
+ /**
+ * remove a listener for notifyFeaturesChanged events
+ *
+ * @param ourListener
+ */
+ void removePropertyChangeListener(PropertyChangeListener ourListener);
+
+ /**
+ *
+ * @return associated alignment panel for this feature renderer (may return
+ * null)
+ */
+ AlignmentViewPanel getAlignPanel();
+