| // Copyright 2018 The PDFium Authors | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #ifndef FXBARCODE_ONED_BC_ONEDEANWRITER_H_ | 
 | #define FXBARCODE_ONED_BC_ONEDEANWRITER_H_ | 
 |  | 
 | #include "fxbarcode/oned/BC_OneDimWriter.h" | 
 |  | 
 | class CBC_OneDimEANWriter : public CBC_OneDimWriter { | 
 |  public: | 
 |   CBC_OneDimEANWriter(); | 
 |   ~CBC_OneDimEANWriter() override; | 
 |  | 
 |   virtual void InitEANWriter(); | 
 |   virtual int32_t CalcChecksum(const ByteString& contents) = 0; | 
 | }; | 
 |  | 
 | #endif  // FXBARCODE_ONED_BC_ONEDEANWRITER_H_ |