symbian/QQrDecoder/zxing/qrcode/detector/Detector.h

   1 #ifndef __DETECTOR_H__\r
   2 #define __DETECTOR_H__\r
   3 \r
   4 /*\r
   5  *  Detector.h\r
   6  *  zxing\r
   7  *\r
   8  *  Created by Christian Brunschen on 14/05/2008.\r
   9  *  Copyright 2008 ZXing authors All rights reserved.\r
  10  *\r
  11  * Licensed under the Apache License, Version 2.0 (the "License");\r
  12  * you may not use this file except in compliance with the License.\r
  13  * You may obtain a copy of the License at\r
  14  *\r
  15  *      http://www.apache.org/licenses/LICENSE-2.0\r
  16  *\r
  17  * Unless required by applicable law or agreed to in writing, software\r
  18  * distributed under the License is distributed on an "AS IS" BASIS,\r
  19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  20  * See the License for the specific language governing permissions and\r
  21  * limitations under the License.\r
  22  */\r
  23 \r
  24 #include <zxing/common/Counted.h>\r
  25 #include <zxing/common/DetectorResult.h>\r
  26 #include <zxing/common/BitMatrix.h>\r
  27 #include <zxing/qrcode/detector/AlignmentPattern.h>\r
  28 #include <zxing/common/PerspectiveTransform.h>\r
  29 \r
  30 namespace zxing {\r
  31 namespace qrcode {\r
  32 \r
  33 class Detector : public Counted {\r
  34 private:\r
  35   Ref<BitMatrix> image_;\r
  36 \r
  37 protected:\r
  38   Ref<BitMatrix> getImage();\r
  39 \r
  40   static Ref<BitMatrix> sampleGrid(Ref<BitMatrix> image, int dimension, Ref<PerspectiveTransform>);\r
  41   static int computeDimension(Ref<ResultPoint> topLeft, Ref<ResultPoint> topRight, Ref<ResultPoint> bottomLeft,\r
  42                               float moduleSize);\r
  43   float calculateModuleSize(Ref<ResultPoint> topLeft, Ref<ResultPoint> topRight, Ref<ResultPoint> bottomLeft);\r
  44   float calculateModuleSizeOneWay(Ref<ResultPoint> pattern, Ref<ResultPoint> otherPattern);\r
  45   float sizeOfBlackWhiteBlackRunBothWays(int fromX, int fromY, int toX, int toY);\r
  46   float sizeOfBlackWhiteBlackRun(int fromX, int fromY, int toX, int toY);\r
  47   Ref<AlignmentPattern> findAlignmentInRegion(float overallEstModuleSize, int estAlignmentX, int estAlignmentY,\r
  48       float allowanceFactor);\r
  49 public:\r
  50 \r
  51   virtual Ref<PerspectiveTransform> createTransform(Ref<ResultPoint> topLeft, Ref<ResultPoint> topRight, Ref <\r
  52       ResultPoint > bottomLeft, Ref<ResultPoint> alignmentPattern, int dimension);\r
  53 \r
  54   Detector(Ref<BitMatrix> image);\r
  55   Ref<DetectorResult> detect();\r
  56 };\r
  57 }\r
  58 }\r
  59 \r
  60 #endif // __DETECTOR_H__\r