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_DATAMATRIX_BC_C40ENCODER_H_ 8 #define FXBARCODE_DATAMATRIX_BC_C40ENCODER_H_ 9 10 #include "core/fxcrt/widestring.h" 11 #include "fxbarcode/datamatrix/BC_Encoder.h" 12 13 class CBC_C40Encoder : public CBC_Encoder { 14 public: 15 CBC_C40Encoder(); 16 ~CBC_C40Encoder() override; 17 18 // CBC_Encoder 19 int32_t getEncodingMode() override; 20 void Encode(CBC_EncoderContext& context, int32_t& e) override; 21 22 static void writeNextTriplet(CBC_EncoderContext& context, WideString& buffer); 23 24 virtual void handleEOD(CBC_EncoderContext& context, 25 WideString& buffer, 26 int32_t& e); 27 virtual int32_t encodeChar(wchar_t c, WideString& sb, int32_t& e); 28 29 private: 30 // Moves back by 1 position in |context| and adjusts |buffer| accordingly 31 // using |lastCharSize|. Returns the length of the current character in 32 // |context| after adjusting the position. If the character cannot be encoded, 33 // return -1. 34 int32_t BacktrackOneCharacter(CBC_EncoderContext* context, 35 WideString* buffer, 36 int32_t lastCharSize); 37 }; 38 39 #endif // FXBARCODE_DATAMATRIX_BC_C40ENCODER_H_ 40
