+ /**
+ * delete any columns in alignmentAnnotation that are hidden (including
+ * sequence associated annotation).
+ *
+ * @param hiddenColumns
+ * the set of hidden columns
+ */
+ public void makeVisibleAnnotation(HiddenColumns hiddenColumns)
+ {
+ if (annotations != null)
+ {
+ makeVisibleAnnotation(0, annotations.length, hiddenColumns);
+ }
+ }
+
+ /**
+ * delete any columns in alignmentAnnotation that are hidden (including
+ * sequence associated annotation).
+ *
+ * @param start
+ * remove any annotation to the right of this column
+ * @param end
+ * remove any annotation to the left of this column
+ * @param hiddenColumns
+ * the set of hidden columns
+ */
+ public void makeVisibleAnnotation(int start, int end,
+ HiddenColumns hiddenColumns)
+ {
+ if (annotations != null)
+ {
+ if (hiddenColumns.hasHiddenColumns())
+ {
+ removeHiddenAnnotation(start, end, hiddenColumns);
+ }
+ else
+ {
+ restrict(start, end);
+ }
+ }
+ }
+
+ /**
+ * The actual implementation of deleting hidden annotation columns
+ *
+ * @param start
+ * remove any annotation to the right of this column
+ * @param end
+ * remove any annotation to the left of this column
+ * @param hiddenColumns
+ * the set of hidden columns
+ */
+ private void removeHiddenAnnotation(int start, int end,
+ HiddenColumns hiddenColumns)
+ {
+ // mangle the alignmentAnnotation annotation array
+ ArrayList<Annotation[]> annels = new ArrayList<>();
+ Annotation[] els = null;
+
+ int w = 0;
+
+ Iterator<int[]> blocks = hiddenColumns.getVisContigsIterator(start,
+ end + 1, false);
+
+ int copylength;
+ int annotationLength;
+ while (blocks.hasNext())
+ {
+ int[] block = blocks.next();
+ annotationLength = block[1] - block[0] + 1;
+
+ if (blocks.hasNext())
+ {
+ // copy just the visible segment of the annotation row
+ copylength = annotationLength;
+ }
+ else
+ {
+ if (annotationLength + block[0] <= annotations.length)
+ {
+ // copy just the visible segment of the annotation row
+ copylength = annotationLength;
+ }
+ else
+ {
+ // copy to the end of the annotation row
+ copylength = annotations.length - block[0];
+ }
+ }
+
+ els = new Annotation[annotationLength];
+ annels.add(els);
+ System.arraycopy(annotations, block[0], els, 0, copylength);
+ w += annotationLength;
+ }
+
+ if (w != 0)
+ {
+ annotations = new Annotation[w];
+
+ w = 0;
+ for (Annotation[] chnk : annels)
+ {
+ System.arraycopy(chnk, 0, annotations, w, chnk.length);
+ w += chnk.length;
+ }
+ }
+ }
+