IMPLZSSStream.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /*
00003  * This file is part of the libe-book project.
00004  *
00005  * This Source Code Form is subject to the terms of the Mozilla Public
00006  * License, v. 2.0. If a copy of the MPL was not distributed with this
00007  * For further information visit http://libebook.sourceforge.net
00008  */
00009 
00010 #ifndef IMPLZSSSTREAM_H_INCLUDED
00011 #define IMPLZSSSTREAM_H_INCLUDED
00012 
00013 #include <boost/scoped_ptr.hpp>
00014 
00015 #include <librevenge-stream/librevenge-stream.h>
00016 
00017 namespace libebook
00018 {
00019 
00020 class IMPLZSSStream : public librevenge::RVNGInputStream
00021 {
00022 // disable copying
00023   IMPLZSSStream(const IMPLZSSStream &other);
00024   IMPLZSSStream &operator=(const IMPLZSSStream &other);
00025 
00026 public:
00027   struct Configuration
00028   {
00029     unsigned offsetBits;
00030     unsigned lengthBits;
00031     unsigned uncompressedLength;
00032     unsigned fillPos;
00033     char fillChar;
00034     bool allowOverflow;
00035     bool bigEndian;
00036 
00037     Configuration();
00038   };
00039 
00040 public:
00041   explicit IMPLZSSStream(librevenge::RVNGInputStream *stream, const Configuration &configuration = Configuration());
00042   virtual ~IMPLZSSStream();
00043 
00044   virtual bool isStructured();
00045   virtual unsigned subStreamCount();
00046   virtual const char *subStreamName(unsigned id);
00047   virtual bool existsSubStream(const char *name);
00048   virtual librevenge::RVNGInputStream *getSubStreamByName(const char *name);
00049   virtual RVNGInputStream *getSubStreamById(unsigned id);
00050 
00051   virtual const unsigned char *read(unsigned long numBytes, unsigned long &numBytesRead);
00052   virtual int seek(long offset, librevenge::RVNG_SEEK_TYPE seekType);
00053   virtual long tell();
00054   virtual bool isEnd();
00055 
00056 private:
00057   boost::scoped_ptr<librevenge::RVNGInputStream> m_stream;
00058 };
00059 
00060 }
00061 
00062 #endif // IMPLZSSSTREAM_H_INCLUDED
00063 
00064 /* vim:set shiftwidth=2 softtabstop=2 expandtab: */