Method encode

czxing/src/main/cpp/zxing/src/datamatrix/DMWriter.cpp:82–111

}

BitMatrix
Writer::encode(const std::wstring& contents, int width, int height) const
{
	if (contents.empty()) {
		throw std::invalid_argument("Found empty contents");
	}

	if (width < 0 || height < 0) {
		throw std::invalid_argument("Requested dimensions are invalid");
	}

	//1. step: Data encodation
	auto encoded = Encode(contents, _shapeHint, _minWidth, _minHeight, _maxWidth, _maxHeight);
	const SymbolInfo* symbolInfo = SymbolInfo::Lookup(Size(encoded), _shapeHint, _minWidth, _minHeight, _maxWidth, _maxHeight);
	if (symbolInfo == nullptr) {
		throw std::invalid_argument("Can't find a symbol arrangement that matches the message. Data codewords: " + std::to_string(encoded.size()));
	}

	//2. step: ECC generation
	EncodeECC200(encoded, *symbolInfo);

	//3. step: Module placement in Matrix
	BitMatrix symbolData = BitMatrixFromCodewords(encoded, symbolInfo->symbolDataWidth(), symbolInfo->symbolDataHeight());

	//4. step: low-level encoding
	BitMatrix result = EncodeLowLevel(symbolData, *symbolInfo);

	//5. step: scale-up to requested size, minimum required quiet zone is 1
	return Inflate(std::move(result), width, height, _quietZone);
}

BitMatrix Writer::encode(const std::string& contents, int width, int height) const
{