cidFor method

Implementation

int cidFor(int code) {
  if (isIdentity) return code;
  final int? single = singles[code];
  if (single != null) return single;
  for (final UPdfCidRange range in ranges) {
    if (code >= range.low && code <= range.high) return range.cid + (code - range.low);
  }
  return 0;
}