addMissingRows method

BoundingBox addMissingRows(int missingStartRows, int missingEndRows, bool isLeft)

Implementation

BoundingBox addMissingRows(
  int missingStartRows,
  int missingEndRows,
  bool isLeft,
) {
  ResultPoint newTopLeft = _topLeft;
  ResultPoint newBottomLeft = _bottomLeft;
  ResultPoint newTopRight = _topRight;
  ResultPoint newBottomRight = _bottomRight;

  if (missingStartRows > 0) {
    final top = isLeft ? _topLeft : _topRight;
    int newMinY = top.y.toInt() - missingStartRows;
    if (newMinY < 0) {
      newMinY = 0;
    }
    final newTop = ResultPoint(top.x, newMinY.toDouble());
    if (isLeft) {
      newTopLeft = newTop;
    } else {
      newTopRight = newTop;
    }
  }

  if (missingEndRows > 0) {
    final bottom = isLeft ? _bottomLeft : _bottomRight;
    int newMaxY = bottom.y.toInt() + missingEndRows;
    if (newMaxY >= _image.height) {
      newMaxY = _image.height - 1;
    }
    final newBottom = ResultPoint(bottom.x, newMaxY.toDouble());
    if (isLeft) {
      newBottomLeft = newBottom;
    } else {
      newBottomRight = newBottom;
    }
  }

  return BoundingBox(
    _image,
    newTopLeft,
    newBottomLeft,
    newTopRight,
    newBottomRight,
  );
}