DummyFile.h

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00001 /*
00002  * steghide 0.5.1 - a steganography program
00003  * Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at>
00004  *
00005  * This program is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU General Public License
00007  * as published by the Free Software Foundation; either version 2
00008  * of the License, or (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software
00017  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00018  *
00019  */
00020 
00021 #ifndef SH_DUMMYFILE_H
00022 #define SH_DUMMYFILE_H
00023 
00024 #include <vector>
00025 #include <list>
00026 
00027 class BitString ;
00028 #include "CvrStgFile.h"
00029 class Selector ;
00030 #include "common.h"
00031 
00036 class DummyFile : public CvrStgFile {
00037         public:
00043         DummyFile (UWORD16 s, std::vector<std::vector<bool> >* svam) ;
00044 
00045         std::list<CvrStgFile::Property> getProperties (void) const ;
00046 
00047         unsigned long getNumSamples (void) const ;
00048 
00049         void replaceSample (const SamplePos pos, const SampleValue* s) ;
00050 
00051         SampleValue* getSampleValue (const SamplePos pos) const ;
00052 
00053         std::vector<std::vector<bool> >* getSampleValueAdjacencyMatrix() const
00054                 { return SampleValueAdjacencyMatrix ; } ;
00055 
00073         static void createGraph (std::vector<std::list<UWORD16> >& adjlist, BitString** bs, CvrStgFile** f, Selector** s) ;
00074 
00075         private:
00076         static const unsigned short SamplesPerVertex = 2 ;
00077         static const EmbValue EmbValueModulus = 2 ;
00078 
00079         std::vector<UWORD16> Samples ;
00080         std::vector<std::vector<bool> >* SampleValueAdjacencyMatrix ;
00081 } ;
00082 
00083 #endif // ndef SH_DUMMYFILE_H

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