sheetHeight property

double get sheetHeight

Gets the height of occupied space by the sheet based on its current offset.

Implementation

double get sheetHeight {
  final clipper =
      _extent.behavior.clipByHeader ? _extent.componentSizes.header : 0.0;
  final maxOffset = _extent.availablePixels - clipper;
  final offsetFromTop = _extent.isAnimatingOpen
      ? _extent.offset
      : _extent.minOffset >= maxOffset
          ? _extent.offset
          : clampDouble(_extent.offset, _extent.minOffset, maxOffset);

  return _extent.isEnabled
      ? math.max(0.0, _extent.availablePixels - offsetFromTop)
      : 0.0;
}