+ * set when the current UI interaction has resulted in a change that requires
+ * overview shading to be recalculated. this could be changed to something
+ * more expressive that indicates what actually has changed, so selective
+ * redraws can be applied
+ */
+ private boolean needOverviewUpdate = false; // TODO: refactor to avcontroller
+
+ /**
+ * set if av.getSelectionGroup() refers to a group that is defined on the
+ * alignment view, rather than a transient selection
+ */
+ // private boolean editingDefinedGroup = false; // TODO: refactor to
+ // avcontroller or viewModel
+
+ /**
+ * Sets the status message in alignment panel, showing the sequence number
+ * (index) and id, and residue and residue position if not at a gap, for the
+ * given sequence and column position. Returns the residue position returned
+ * by Sequence.findPosition. Note this may be for the nearest adjacent residue
+ * if at a gapped position.