+ blockStart = Math.min(blockStart, hideEnd + 1);
+ blockEnd = Math.min(blockEnd, hideStart);
+
+ if (blockStart > blockEnd)
+ {
+ break;
+ }
+
+ annels.addElement(els = new Annotation[blockEnd - blockStart]);
+ System.arraycopy(alignmentAnnotation.annotations, blockStart, els,
+ 0, els.length);
+ w += els.length;
+ blockStart = hideEnd + 1;
+ blockEnd = end;
+ }
+
+ if (end > blockStart)
+ {
+ annels.addElement(els = new Annotation[end - blockStart + 1]);
+ if ((els.length + blockStart) <= alignmentAnnotation.annotations.length)
+ {
+ // copy just the visible segment of the annotation row
+ System.arraycopy(alignmentAnnotation.annotations, blockStart,
+ els, 0, els.length);
+ }
+ else
+ {
+ // copy to the end of the annotation row
+ System.arraycopy(alignmentAnnotation.annotations, blockStart,
+ els, 0,
+ (alignmentAnnotation.annotations.length - blockStart));
+ }
+ w += els.length;
+ }
+ if (w == 0)
+ {
+ return;
+ }
+ Enumeration e = annels.elements();
+ alignmentAnnotation.annotations = new Annotation[w];
+ w = 0;
+ while (e.hasMoreElements())
+ {
+ Annotation[] chnk = (Annotation[]) e.nextElement();
+ System.arraycopy(chnk, 0, alignmentAnnotation.annotations, w,
+ chnk.length);
+ w += chnk.length;
+ }
+ }
+ else
+ {
+ alignmentAnnotation.restrict(start, end);
+ }
+ }
+
+ /**
+ * Invert the column selection from first to end-1. leaves hiddenColumns
+ * untouched (and unselected)
+ *
+ * @param first
+ * @param end
+ */
+ public void invertColumnSelection(int first, int width)
+ {
+ boolean hasHidden = hiddenColumns != null && hiddenColumns.size() > 0;
+ for (int i = first; i < width; i++)
+ {
+ if (contains(i))
+ {
+ removeElement(i);
+ }
+ else
+ {
+ if (!hasHidden || isVisible(i))
+ {
+ addElement(i);
+ }
+ }