topical media & game development
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lib-of-vs-libs-Poco-include-Poco-Base64Encoder.h / h



  //
  // Base64Encoder.h
  //
  // Id: //poco/1.3/Foundation/include/Poco/Base64Encoder.h#3 
  //
  // Library: Foundation
  // Package: Streams
  // Module:  Base64
  //
  // Definition of class Base64Encoder.
  //
  // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
  // and Contributors.
  //
  // Permission is hereby granted, free of charge, to any person or organization
  // obtaining a copy of the software and accompanying documentation covered by
  // this license (the "Software") to use, reproduce, display, distribute,
  // execute, and transmit the Software, and to prepare derivative works of the
  // Software, and to permit third-parties to whom the Software is furnished to
  // do so, all subject to the following:
  // 
  // The copyright notices in the Software and this entire statement, including
  // the above license grant, this restriction and the following disclaimer,
  // must be included in all copies of the Software, in whole or in part, and
  // all derivative works of the Software, unless such copies or derivative
  // works are solely in the form of machine-executable object code generated by
  // a source language processor.
  // 
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
  // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
  // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
  // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  // DEALINGS IN THE SOFTWARE.
  //
  
  ifndef Foundation_Base64Encoder_INCLUDED
  define Foundation_Base64Encoder_INCLUDED
  
  include "Poco/Foundation.h"
  include "Poco/UnbufferedStreamBuf.h"
  include <ostream>
  
  namespace Poco {
  
  class Foundation_API Base64EncoderBuf: public UnbufferedStreamBuf
This streambuf base64-encodes all data written to it and forwards it to a connected ostream. { public: Base64EncoderBuf(std::ostream& ostr); ~Base64EncoderBuf(); int close(); Closes the stream buffer. 

          void setLineLength(int lineLength);
Specify the line length. After the given number of characters have been written, a newline character will be written. Specify 0 for an unlimited line length. 

          int getLineLength() const;
Returns the currently set line length. private: int writeToDevice(char c); 

          unsigned char _group[3];
          int           _groupLength;
          int           _pos;
          int           _lineLength;
          std::ostream& _ostr;
          
          static const unsigned char OUT_ENCODING[64];
          
          friend class Base64DecoderBuf;
  
          Base64EncoderBuf(const Base64EncoderBuf&);
          Base64EncoderBuf& operator = (const Base64EncoderBuf&);
  };
  
  class Foundation_API Base64EncoderIOS: public virtual std::ios
The base class for Base64Encoder. This class is needed to ensure the correct initialization order of the stream buffer and base classes. { public: Base64EncoderIOS(std::ostream& ostr); ~Base64EncoderIOS(); int close(); Base64EncoderBuf* rdbuf(); 

  protected:
          Base64EncoderBuf _buf;
  
  private:
          Base64EncoderIOS(const Base64EncoderIOS&);
          Base64EncoderIOS& operator = (const Base64EncoderIOS&);
  };
  
  class Foundation_API Base64Encoder: public Base64EncoderIOS, public std::ostream
This ostream base64-encodes all data written to it and forwards it to a connected ostream. Always call close() when done writing data, to ensure proper completion of the encoding operation. { public: Base64Encoder(std::ostream& ostr); ~Base64Encoder(); 

  private:
          Base64Encoder(const Base64Encoder&);
          Base64Encoder& operator = (const Base64Encoder&);
  };
  
  } // namespace Poco
  
  endif // Foundation_Base64Encoder_INCLUDED
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 04/09/2009

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