WPGInternalStream.h

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00001 /* libwpg
00002  * Copyright (C) 2004-2005 William Lachance (wrlach@gmail.com)
00003  *  
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Library General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Library General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Library General Public
00015  * License along with this library; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
00017  *
00018  * For further information visit http://libwpg.sourceforge.net
00019  */
00020 
00021 /* "This product is not manufactured, approved, or supported by 
00022  * Corel Corporation or Corel Corporation Limited."
00023  */
00024 
00025 #ifndef WPGINTERNALSTREAM_H
00026 #define WPGINTERNALSTREAM_H
00027 #include <libwpd/WPXStream.h>
00028 
00029 class WPGInternalInputStream : public WPXInputStream
00030 {
00031 public:
00032         WPGInternalInputStream(const unsigned char *data, const size_t size);
00033         virtual ~WPGInternalInputStream();
00034 
00035         virtual bool isOLEStream() { return false; }
00036         virtual WPXInputStream * getDocumentOLEStream() { return 0; }
00037         
00038         const virtual uint8_t *read(size_t numBytes, size_t &numBytesRead);
00039         virtual int seek(long offset, WPX_SEEK_TYPE seekType);
00040         virtual long tell();
00041         virtual bool atEOS();
00042 
00043 private:
00044         long m_offset;
00045         const size_t m_size;
00046         const unsigned char *m_data;
00047         unsigned char *m_tmpBuf;
00048         WPGInternalInputStream(const WPGInternalInputStream&);
00049         WPGInternalInputStream& operator=(const WPGInternalInputStream&);
00050 };
00051 
00052 #endif