// Copyright 2014 PDFium Authors. All rights reserved.
// 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 _BC_C40ENCODER_H_
#define _BC_C40ENCODER_H_
class CBC_C40Encoder;
class CBC_C40Encoder : public CBC_Encoder {
 public:
  CBC_C40Encoder();
  virtual ~CBC_C40Encoder();
  virtual int32_t getEncodingMode();
  virtual void Encode(CBC_EncoderContext& context, int32_t& e);
  static void writeNextTriplet(CBC_EncoderContext& context,
                               CFX_WideString& buffer);
  virtual void handleEOD(CBC_EncoderContext& context,
                         CFX_WideString& buffer,
                         int32_t& e);
  virtual int32_t encodeChar(FX_WCHAR c, CFX_WideString& sb, int32_t& e);

 private:
  int32_t backtrackOneCharacter(CBC_EncoderContext& context,
                                CFX_WideString& buffer,
                                CFX_WideString& removed,
                                int32_t lastCharSize,
                                int32_t& e);
  static CFX_WideString encodeToCodewords(CFX_WideString sb, int32_t startPos);
};
#endif