cpp/core/src/zxing/oned/Code39Reader.h

   1 #ifndef __CODE_39_READER_H__
   2 #define __CODE_39_READER_H__
   3 /*
   4  *  Code39Reader.h
   5  *  ZXing
   6  *
   7  *  Copyright 2010 ZXing authors All rights reserved.
   8  *
   9  * Licensed under the Apache License, Version 2.0 (the "License");
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  */
  21
  22 #include <zxing/oned/OneDReader.h>
  23 #include <zxing/common/BitArray.h>
  24 #include <zxing/Result.h>
  25
  26 namespace zxing {
  27         namespace oned {
  28
  29                 /**
  30                  * <p>Decodes Code 39 barcodes. This does not support "Full ASCII Code 39" yet.</p>
  31                  * Ported form Java (author Sean Owen)
  32                  * @author Lukasz Warchol
  33                  */
  34                 class Code39Reader : public OneDReader {
  35
  36                 private:
  37                         std::string alphabet_string;
  38
  39                         bool usingCheckDigit;
  40                         bool extendedMode;
  41
  42                         static int* findAsteriskPattern(Ref<BitArray> row);                                                                                                             //throws ReaderException
  43                         static int toNarrowWidePattern(int counters[], int countersLen);
  44                         static char patternToChar(int pattern);                                                                                                                                 //throws ReaderException
  45                         static Ref<String> decodeExtended(std::string encoded);                                                                                                 //throws ReaderException
  46
  47                         void append(char* s, char c);
  48                 public:
  49                         Code39Reader();
  50                         Code39Reader(bool usingCheckDigit_);
  51                         Code39Reader(bool usingCheckDigit_, bool extendedMode_);
  52
  53                         Ref<Result> decodeRow(int rowNumber, Ref<BitArray> row);
  54     };
  55         }
  56 }
  57
  58 #endif