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_DATAMATRIX_BC_C40ENCODER_H_
8 #define XFA_FXBARCODE_DATAMATRIX_BC_C40ENCODER_H_
9 
10 #include "xfa/fxbarcode/datamatrix/BC_Encoder.h"
11 
12 class CBC_C40Encoder : public CBC_Encoder {
13  public:
14   CBC_C40Encoder();
15   ~CBC_C40Encoder() override;
16 
17   // CBC_Encoder
18   int32_t getEncodingMode() override;
19   void Encode(CBC_EncoderContext& context, int32_t& e) override;
20 
21   static void writeNextTriplet(CBC_EncoderContext& context,
22                                CFX_WideString& buffer);
23 
24   virtual void handleEOD(CBC_EncoderContext& context,
25                          CFX_WideString& buffer,
26                          int32_t& e);
27   virtual int32_t encodeChar(FX_WCHAR c, CFX_WideString& sb, int32_t& e);
28 
29  private:
30   int32_t backtrackOneCharacter(CBC_EncoderContext& context,
31                                 CFX_WideString& buffer,
32                                 CFX_WideString& removed,
33                                 int32_t lastCharSize,
34                                 int32_t& e);
35   static CFX_WideString encodeToCodewords(CFX_WideString sb, int32_t startPos);
36 };
37 
38 #endif  // XFA_FXBARCODE_DATAMATRIX_BC_C40ENCODER_H_
39