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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #ifndef XFA_FXBARCODE_PDF417_BC_PDF417HIGHLEVELENCODER_H_
      8 #define XFA_FXBARCODE_PDF417_BC_PDF417HIGHLEVELENCODER_H_
      9 
     10 #include "core/fxcrt/fx_basic.h"
     11 #include "core/fxcrt/fx_string.h"
     12 #include "xfa/fxbarcode/pdf417/BC_PDF417Compaction.h"
     13 
     14 class CBC_PDF417HighLevelEncoder {
     15  public:
     16   static CFX_WideString encodeHighLevel(CFX_WideString msg,
     17                                         Compaction compaction,
     18                                         int32_t& e);
     19   static void Inverse();
     20   static void Initialize();
     21   static void Finalize();
     22 
     23  private:
     24   static int32_t TEXT_COMPACTION;
     25   static int32_t BYTE_COMPACTION;
     26   static int32_t NUMERIC_COMPACTION;
     27   static int32_t SUBMODE_PUNCTUATION;
     28   static int32_t LATCH_TO_TEXT;
     29   static int32_t LATCH_TO_BYTE_PADDED;
     30   static int32_t LATCH_TO_NUMERIC;
     31   static int32_t SHIFT_TO_BYTE;
     32   static int32_t LATCH_TO_BYTE;
     33   static uint8_t TEXT_MIXED_RAW[];
     34   static uint8_t TEXT_PUNCTUATION_RAW[];
     35   static int32_t MIXED[128];
     36   static int32_t PUNCTUATION[128];
     37   static int32_t encodeText(CFX_WideString msg,
     38                             int32_t startpos,
     39                             int32_t count,
     40                             CFX_WideString& sb,
     41                             int32_t initialSubmode);
     42   static void encodeBinary(CFX_ArrayTemplate<uint8_t>* bytes,
     43                            int32_t startpos,
     44                            int32_t count,
     45                            int32_t startmode,
     46                            CFX_WideString& sb);
     47   static void encodeNumeric(CFX_WideString msg,
     48                             int32_t startpos,
     49                             int32_t count,
     50                             CFX_WideString& sb);
     51   static bool isDigit(FX_WCHAR ch);
     52   static bool isAlphaUpper(FX_WCHAR ch);
     53   static bool isAlphaLower(FX_WCHAR ch);
     54   static bool isMixed(FX_WCHAR ch);
     55   static bool isPunctuation(FX_WCHAR ch);
     56   static bool isText(FX_WCHAR ch);
     57   static int32_t determineConsecutiveDigitCount(CFX_WideString msg,
     58                                                 int32_t startpos);
     59   static int32_t determineConsecutiveTextCount(CFX_WideString msg,
     60                                                int32_t startpos);
     61   static int32_t determineConsecutiveBinaryCount(
     62       CFX_WideString msg,
     63       CFX_ArrayTemplate<uint8_t>* bytes,
     64       int32_t startpos,
     65       int32_t& e);
     66 
     67   friend class PDF417HighLevelEncoder_EncodeNumeric_Test;
     68   friend class PDF417HighLevelEncoder_EncodeBinary_Test;
     69   friend class PDF417HighLevelEncoder_EncodeText_Test;
     70   friend class PDF417HighLevelEncoder_ConsecutiveDigitCount_Test;
     71   friend class PDF417HighLevelEncoder_ConsecutiveTextCount_Test;
     72   friend class PDF417HighLevelEncoder_ConsecutiveBinaryCount_Test;
     73 };
     74 
     75 #endif  // XFA_FXBARCODE_PDF417_BC_PDF417HIGHLEVELENCODER_H_
     76