WPXStream.h

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00001 /* libwpd
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://libwpd.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 WPXSTREAM_H
00026 #define WPXSTREAM_H
00027 #include <stdio.h>
00028 
00029 enum WPX_SEEK_TYPE
00030 {
00031         WPX_SEEK_CUR,
00032         WPX_SEEK_SET
00033 };
00034 
00035 class WPXInputStream
00036 {
00037 public:
00038         WPXInputStream() {}
00039         virtual ~WPXInputStream() {}
00040 
00046         virtual bool isOLEStream() = 0;
00053         virtual WPXInputStream * getDocumentOLEStream(const char *name) = 0;
00054 
00062         virtual const unsigned char *read(size_t numBytes, size_t &numBytesRead) = 0;
00073         virtual int seek(long offset, WPX_SEEK_TYPE seekType) = 0;
00078         virtual long tell() = 0;
00084         virtual bool atEOS() = 0;
00085 };
00086 #endif

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