decodeRow method

@override Result decodeRow(int rowNumber, BitArray row, DecodeHint? hints)

Attempts to decode a one-dimensional barcode format given a single row of an image.

@param rowNumber row number from top of the row @param row the black/white pixel data of the row @param hints decode hints @return Result containing encoded string and start/end of barcode @throws NotFoundException if no potential barcode is found @throws ChecksumException if a potential barcode is found but does not pass its checksum @throws FormatException if a potential barcode is found but format is invalid

Implementation

@override
Result decodeRow(
  int rowNumber,
  BitArray row,
  DecodeHint? hints,
) {
  // Rows can start with even pattern if previous rows had an odd number
  // of patterns, so we try twice.
  _startFromEven = false;
  try {
    return constructResult(decodeRow2pairs(rowNumber, row));
  } on NotFoundException catch (_) {
    // OK
  }

  _startFromEven = true;
  return constructResult(decodeRow2pairs(rowNumber, row));
}