copyCellsFrom method
Implementation
void copyCellsFrom(ListBufferLineData src, int srcCol, int dstCol, int len) {
ensure(dstCol + len);
final intsToCopy = len * _cellSize;
final srcStart = srcCol * _cellSize;
final dstStart = dstCol * _cellSize;
final cells = _cells;
final srcCells = src._cells;
for (var i = 0; i < intsToCopy; i++) {
cells[dstStart + i] = srcCells[srcStart + i];
}
}