QRCodeMultiReader.cpp Example File

 // -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
 /*
  *  Copyright 2011 ZXing authors All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include <zxing/multi/qrcode/QRCodeMultiReader.h>
 #include <zxing/ReaderException.h>
 #include <zxing/multi/qrcode/detector/MultiDetector.h>
 #include <zxing/BarcodeFormat.h>

 namespace zxing {
 namespace multi {
 QRCodeMultiReader::QRCodeMultiReader(){}

 QRCodeMultiReader::~QRCodeMultiReader(){}

 std::vector<Ref<Result> > QRCodeMultiReader::decodeMultiple(Ref<BinaryBitmap> image,
   DecodeHints hints)
 {
   std::vector<Ref<Result> > results;
   MultiDetector detector(image->getBlackMatrix());

   std::vector<Ref<DetectorResult> > detectorResult =  detector.detectMulti(hints);
   for (unsigned int i = 0; i < detectorResult.size(); i++) {
     try {
       Ref<DecoderResult> decoderResult = getDecoder().decode(detectorResult[i]->getBits());
       ArrayRef< Ref<ResultPoint> > points = detectorResult[i]->getPoints();
       Ref<Result> result = Ref<Result>(new Result(decoderResult->getText(),
       decoderResult->getRawBytes(),
       points, BarcodeFormat::QR_CODE));
       // result->putMetadata(ResultMetadataType.BYTE_SEGMENTS, decoderResult->getByteSegments());
       // result->putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, decoderResult->getECLevel().toString());
       results.push_back(result);
     } catch (ReaderException const& re) {
       (void)re;
       // ignore and continue
     }
   }
   if (results.empty()){
     throw ReaderException("No code detected");
   }
   return results;
 }

 } // End zxing::multi namespace
 } // End zxing namespace