+
+ /**
+ * synthesize a column selection if none exists so it covers the given
+ * selection group. if wholewidth is false, no column selection is made if the
+ * selection group covers the whole alignment width.
+ *
+ * @param sg
+ * @param wholewidth
+ */
+ public void expandColSelection(SequenceGroup sg, boolean wholewidth)
+ {
+ int sgs, sge;
+ if (sg != null && (sgs = sg.getStartRes()) >= 0
+ && sg.getStartRes() <= (sge = sg.getEndRes())
+ && !this.hasSelectedColumns())
+ {
+ if (!wholewidth && alignment.getWidth() == (1 + sge - sgs))
+ {
+ // do nothing
+ return;
+ }
+ if (colSel == null)
+ {
+ colSel = new ColumnSelection();
+ }
+ for (int cspos = sg.getStartRes(); cspos <= sg.getEndRes(); cspos++)
+ {
+ colSel.addElement(cspos);
+ }
+ }
+ }
+
+ /**
+ * hold status of current selection group - defined on alignment or not.
+ */
+ private boolean selectionIsDefinedGroup = false;
+
+ @Override
+ public boolean isSelectionDefinedGroup()
+ {
+ if (selectionGroup == null)
+ {
+ return false;
+ }
+ if (isSelectionGroupChanged(true))
+ {
+ selectionIsDefinedGroup = false;
+ List<SequenceGroup> gps = alignment.getGroups();
+ if (gps == null || gps.size() == 0)
+ {
+ selectionIsDefinedGroup = false;
+ }
+ else
+ {
+ selectionIsDefinedGroup = gps.contains(selectionGroup);
+ }
+ }
+ return selectionGroup.getContext() == alignment
+ || selectionIsDefinedGroup;
+ }