VSDInternalStream.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* libvisio
00003  * Version: MPL 1.1 / GPLv2+ / LGPLv2+
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License or as specified alternatively below. You may obtain a copy of
00008  * the License at http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * Major Contributor(s):
00016  * Copyright (C) 2011 Fridrich Strba <fridrich.strba@bluewin.ch>
00017  * Copyright (C) 2011 Eilidh McAdam <tibbylickle@gmail.com>
00018  *
00019  *
00020  * All Rights Reserved.
00021  *
00022  * For minor contributions see the git repository.
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPLv2+"), or
00026  * the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
00027  * in which case the provisions of the GPLv2+ or the LGPLv2+ are applicable
00028  * instead of those above.
00029  */
00030 
00031 
00032 #ifndef __VSDINTERNALSTREAM_H__
00033 #define __VSDINTERNALSTREAM_H__
00034 
00035 #include <stddef.h>
00036 #include <vector>
00037 #include <libwpd-stream/libwpd-stream.h>
00038 
00039 class VSDInternalStream : public WPXInputStream
00040 {
00041 public:
00042   VSDInternalStream(WPXInputStream *input, unsigned long size, bool compressed=false);
00043   VSDInternalStream(const std::vector<unsigned char> &buffer);
00044   VSDInternalStream(const unsigned char *buffer, size_t bufferLength);
00045   ~VSDInternalStream() {}
00046 
00047   bool isOLEStream()
00048   {
00049     return false;
00050   }
00051   WPXInputStream *getDocumentOLEStream(const char *)
00052   {
00053     return 0;
00054   }
00055 
00056   const unsigned char *read(unsigned long numBytes, unsigned long &numBytesRead);
00057   int seek(long offset, WPX_SEEK_TYPE seekType);
00058   long tell();
00059   bool atEOS();
00060   unsigned long getSize() const
00061   {
00062     return m_buffer.size();
00063   };
00064 
00065 private:
00066   volatile long m_offset;
00067   std::vector<unsigned char> m_buffer;
00068   VSDInternalStream(const VSDInternalStream &);
00069   VSDInternalStream &operator=(const VSDInternalStream &);
00070 };
00071 
00072 #endif
00073 /* vim:set shiftwidth=2 softtabstop=2 expandtab: */