cpp/core/src/zxing/qrcode/QRCodeReader.cpp

   1 /*
   2  *  QRCodeReader.cpp
   3  *  zxing
   4  *
   5  *  Created by Christian Brunschen on 20/05/2008.
   6  *  Copyright 2008 ZXing authors All rights reserved.
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  */
  20
  21 #include <zxing/qrcode/QRCodeReader.h>
  22 #include <zxing/qrcode/detector/Detector.h>
  23
  24 #include <iostream>
  25
  26 namespace zxing {
  27         namespace qrcode {
  28
  29                 using namespace std;
  30
  31                 QRCodeReader::QRCodeReader() :decoder_() {
  32                 }
  33
  34                 Ref<Result> QRCodeReader::decode(Ref<BinaryBitmap> image) {
  35 #ifdef DEBUG
  36                         cout << "decoding image " << image.object_ << ":\n" << flush;
  37 #endif
  38
  39                         Detector detector(image->getBlackMatrix());
  40
  41
  42 #ifdef DEBUG
  43                         cout << "(1) created detector " << &detector << "\n" << flush;
  44 #endif
  45
  46                         Ref<DetectorResult> detectorResult(detector.detect());
  47 #ifdef DEBUG
  48                         cout << "(2) detected, have detectorResult " << detectorResult.object_ << "\n" << flush;
  49 #endif
  50
  51                         std::vector<Ref<ResultPoint> > points(detectorResult->getPoints());
  52
  53
  54 #ifdef DEBUG
  55                         cout << "(3) extracted points " << &points << "\n" << flush;
  56                         cout << "found " << points->size() << " points:\n";
  57                         for (size_t i = 0; i < points->size(); i++) {
  58                                 cout << "   " << points[i]->getX() << "," << points[i]->getY() << "\n";
  59                         }
  60                         cout << "bits:\n";
  61                         cout << *(detectorResult->getBits()) << "\n";
  62 #endif
  63
  64                         Ref<DecoderResult> decoderResult(decoder_.decode(detectorResult->getBits()));
  65 #ifdef DEBUG
  66                         cout << "(4) decoded, have decoderResult " << decoderResult.object_ << "\n" << flush;
  67 #endif
  68
  69                         Ref<Result> result(
  70                                                            new Result(decoderResult->getText(), decoderResult->getRawBytes(), points, BarcodeFormat_QR_CODE));
  71 #ifdef DEBUG
  72                         cout << "(5) created result " << result.object_ << ", returning\n" << flush;
  73 #endif
  74
  75                         return result;
  76                 }
  77
  78                 QRCodeReader::~QRCodeReader() {
  79                 }
  80
  81         }
  82 }