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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 FXBARCODE_PDF417_BC_PDF417HIGHLEVELENCODER_H_
8 #define FXBARCODE_PDF417_BC_PDF417HIGHLEVELENCODER_H_
9 
10 #include <vector>
11 
12 #include "core/fxcrt/fx_string.h"
13 #include "fxbarcode/pdf417/BC_PDF417Compaction.h"
14 
15 class CBC_PDF417HighLevelEncoder {
16  public:
17   static WideString encodeHighLevel(WideString msg,
18                                     Compaction compaction,
19                                     int32_t& e);
20   static void Inverse();
21   static void Initialize();
22   static void Finalize();
23 
24  private:
25   static int32_t TEXT_COMPACTION;
26   static int32_t BYTE_COMPACTION;
27   static int32_t NUMERIC_COMPACTION;
28   static int32_t SUBMODE_PUNCTUATION;
29   static int32_t LATCH_TO_TEXT;
30   static int32_t LATCH_TO_BYTE_PADDED;
31   static int32_t LATCH_TO_NUMERIC;
32   static int32_t SHIFT_TO_BYTE;
33   static int32_t LATCH_TO_BYTE;
34   static uint8_t TEXT_MIXED_RAW[];
35   static uint8_t TEXT_PUNCTUATION_RAW[];
36   static int32_t MIXED[128];
37   static int32_t PUNCTUATION[128];
38   static int32_t encodeText(WideString msg,
39                             int32_t startpos,
40                             int32_t count,
41                             WideString& sb,
42                             int32_t initialSubmode);
43   static void encodeBinary(std::vector<uint8_t>* bytes,
44                            int32_t startpos,
45                            int32_t count,
46                            int32_t startmode,
47                            WideString& sb);
48   static void encodeNumeric(WideString msg,
49                             int32_t startpos,
50                             int32_t count,
51                             WideString& sb);
52   static bool isDigit(wchar_t ch);
53   static bool isAlphaUpper(wchar_t ch);
54   static bool isAlphaLower(wchar_t ch);
55   static bool isMixed(wchar_t ch);
56   static bool isPunctuation(wchar_t ch);
57   static bool isText(wchar_t ch);
58   static int32_t determineConsecutiveDigitCount(WideString msg,
59                                                 int32_t startpos);
60   static int32_t determineConsecutiveTextCount(WideString msg,
61                                                int32_t startpos);
62   static int32_t determineConsecutiveBinaryCount(WideString msg,
63                                                  std::vector<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  // FXBARCODE_PDF417_BC_PDF417HIGHLEVELENCODER_H_
76