selectAllCells method

void selectAllCells()

Implementation

void selectAllCells() {
  if (selectionMode != ReadableSelectionMode.multiCell) return;
  _selCells.clear();
  for (final m in _viewMaster) {
    for (var c = 0; c < colCount; c++) {
      _selCells.add(ReadableCell(m, c));
    }
  }
  notifyListeners();
}