IWORKMemoryStream.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 libetonyek 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  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
00008  */
00009 
00010 #ifndef IWORKMEMORYSTREAM_H_INCLUDED
00011 #define IWORKMEMORYSTREAM_H_INCLUDED
00012 
00013 #include <vector>
00014 
00015 #include "libetonyek_utils.h"
00016 
00017 namespace libetonyek
00018 {
00019 
00020 class IWORKMemoryStream : public librevenge::RVNGInputStream
00021 {
00022   // -Weffc++
00023   IWORKMemoryStream(const IWORKMemoryStream &other);
00024   IWORKMemoryStream &operator=(const IWORKMemoryStream &other);
00025 
00026 public:
00027   explicit IWORKMemoryStream(const RVNGInputStreamPtr_t &input);
00028   IWORKMemoryStream(const RVNGInputStreamPtr_t &input, unsigned length);
00029   explicit IWORKMemoryStream(const std::vector<unsigned char> &data);
00030   IWORKMemoryStream(const unsigned char *data, unsigned length);
00031   ~IWORKMemoryStream();
00032 
00033   bool isStructured();
00034   unsigned subStreamCount();
00035   const char *subStreamName(unsigned id);
00036   bool existsSubStream(const char *)
00037   {
00038     return false;
00039   }
00040   librevenge::RVNGInputStream *getSubStreamByName(const char *name);
00041   librevenge::RVNGInputStream *getSubStreamById(unsigned id);
00042 
00043   const unsigned char *read(unsigned long numBytes, unsigned long &numBytesRead);
00044   int seek(long offset, librevenge::RVNG_SEEK_TYPE seekType);
00045   long tell();
00046   bool isEnd();
00047 
00048 private:
00049   void assign(const unsigned char *data, unsigned length);
00050   void read(const RVNGInputStreamPtr_t &input, unsigned length);
00051 
00052 private:
00053   const unsigned char *m_data;
00054   long m_length;
00055   long m_pos;
00056 };
00057 
00058 }
00059 
00060 #endif // IWORKMEMORYSTREAM_H_INCLUDED
00061 
00062 /* vim:set shiftwidth=2 softtabstop=2 expandtab: */