- start = lowerBound;
- end = upperBound;
-
- if (hiddenColumns != null)
- {
- positions = new ArrayList<>(hiddenColumns.size());
-
- // navigate to start, keeping count of hidden columns
- int i = 0;
- int hiddenSoFar = 0;
- while ((i < hiddenColumns.size())
- && (hiddenColumns.get(i)[0] < start + hiddenSoFar))
- {
- int[] region = hiddenColumns.get(i);
- hiddenSoFar += region[1] - region[0] + 1;
- i++;
- }
-
- // iterate from start to end, adding start positions of each
- // hidden region. Positions are visible columns count, not absolute
- while (i < hiddenColumns.size()
- && (hiddenColumns.get(i)[0] <= end + hiddenSoFar))
- {
- int[] region = hiddenColumns.get(i);
- positions.add(region[0] - hiddenSoFar);
- hiddenSoFar += region[1] - region[0] + 1;
- i++;
- }
- }
- else
- {
- positions = new ArrayList<>();
- }
-
+ this(null, lowerBound, upperBound, hiddenColumns);