IWASnappyStream.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 IWASNAPPYSTREAM_H_INCLUDED
00011 #define IWASNAPPYSTREAM_H_INCLUDED
00012 
00013 #include <librevenge-stream/librevenge-stream.h>
00014 
00015 #include "libetonyek_utils.h"
00016 
00017 namespace libetonyek
00018 {
00019 
00020 class IWASnappyStream : public librevenge::RVNGInputStream
00021 {
00022 public:
00023   explicit IWASnappyStream(const RVNGInputStreamPtr_t &stream);
00024   ~IWASnappyStream();
00025 
00026   // for unit tests
00027   static RVNGInputStreamPtr_t uncompressBlock(const RVNGInputStreamPtr_t &block);
00028 
00029   bool isStructured();
00030   unsigned subStreamCount();
00031   const char *subStreamName(unsigned id);
00032   bool existsSubStream(const char *name);
00033 
00034   librevenge::RVNGInputStream *getSubStreamByName(const char *name);
00035   librevenge::RVNGInputStream *getSubStreamById(unsigned id);
00036 
00037   const unsigned char *read(unsigned long numBytes, unsigned long &numBytesRead);
00038   int seek(long offset, librevenge::RVNG_SEEK_TYPE seekType);
00039   long tell();
00040   bool isEnd();
00041 
00042 private:
00043   RVNGInputStreamPtr_t m_stream;
00044 };
00045 
00046 }
00047 
00048 #endif // IWASNAPPYSTREAM_H_INCLUDED
00049 
00050 /* vim:set shiftwidth=2 softtabstop=2 expandtab: */