cellsAsTsv method

String cellsAsTsv(Iterable<CellRef> cells)

A rectangle covering cells; cells inside the bounding box but not in the set are emitted as empty fields, so the block keeps its shape on paste.

Implementation

String cellsAsTsv(Iterable<CellRef> cells) {
  final list = cells.toList();
  if (list.isEmpty) return '';
  final rs = list.map((c) => c.row).toList()..sort();
  final cs = list.map((c) => c.col).toList()..sort();
  final minR = rs.first, maxR = rs.last, minC = cs.first, maxC = cs.last;
  final picked = {for (final c in list) (c.row * 100000 + c.col)};
  final buf = <String>[];
  for (var r = minR; r <= maxR; r++) {
    final line = <String>[];
    for (var c = minC; c <= maxC; c++) {
      line.add(picked.contains(r * 100000 + c) ? _san(cellValue(r, c)) : '');
    }
    buf.add(line.join('\t'));
  }
  return buf.join('\n');
}