| // Copyright 2014 The PDFium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef FXBARCODE_DATAMATRIX_BC_C40ENCODER_H_ |
| #define FXBARCODE_DATAMATRIX_BC_C40ENCODER_H_ |
| |
| #include "core/fxcrt/widestring.h" |
| #include "fxbarcode/datamatrix/BC_Encoder.h" |
| |
| class CBC_C40Encoder : public CBC_Encoder { |
| public: |
| CBC_C40Encoder(); |
| ~CBC_C40Encoder() override; |
| |
| // CBC_Encoder |
| CBC_HighLevelEncoder::Encoding GetEncodingMode() override; |
| bool Encode(CBC_EncoderContext* context) override; |
| |
| static void WriteNextTriplet(CBC_EncoderContext* context, WideString* buffer); |
| |
| virtual bool HandleEOD(CBC_EncoderContext* context, WideString* buffer); |
| |
| // Returns the number of characters appended to |sb|, or 0 on failure. |
| virtual int32_t EncodeChar(wchar_t c, WideString* sb); |
| |
| private: |
| // Moves back by 1 position in |context| and adjusts |buffer| accordingly |
| // using |lastCharSize|. Returns the length of the current character in |
| // |context| after adjusting the position. If the character cannot be encoded, |
| // return -1. |
| int32_t BacktrackOneCharacter(CBC_EncoderContext* context, |
| WideString* buffer, |
| int32_t lastCharSize); |
| }; |
| |
| #endif // FXBARCODE_DATAMATRIX_BC_C40ENCODER_H_ |