#include "stdafx.h"
#include "ParseQRInfo.h"
#include "MatSource.h"

CParseQRInfo::CParseQRInfo()
{
}


CParseQRInfo::~CParseQRInfo()
{
}
bool CParseQRInfo::parseQRInfo(cv::Mat&greyImg, char*buffer, std::size_t len)
{
	bool bRet = false;
	try{
		// Create luminance  source
		zxing::Ref<LuminanceSource> source = MatSource::create(greyImg);
		// Search for QR code
		zxing::Ref<zxing::Reader> reader;
		reader.reset(new QRCodeReader);
	
		zxing::Ref<zxing::Binarizer> binarizer(new zxing::GlobalHistogramBinarizer(source));
		zxing::Ref<zxing::BinaryBitmap> bitmap(new zxing::BinaryBitmap(binarizer));
		zxing::Ref<zxing::Result> result(reader->decode(bitmap, zxing::DecodeHints(zxing::DecodeHints::TRYHARDER_HINT)));
		auto txt = result->getText()->getText();
		if (len > txt.size()){
			strcpy_s(buffer, len, txt.c_str());
			bRet = true;
		}
	}
	catch (const zxing::ReaderException& e) {
		cerr << e.what() << " (ignoring)" << endl;
	}
	catch (const zxing::IllegalArgumentException& e) {
		cerr << e.what() << " (ignoring)" << endl;
	}
	catch (const zxing::Exception& e) {
		cerr << e.what() << " (ignoring)" << endl;
	}
	catch (const std::exception& e) {
		cerr << e.what() << " (ignoring)" << endl;
	}
	return bRet;
}