steghide  0.5.1
SampleValueAdjacencyList.h
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1 /*
2  * steghide 0.5.1 - a steganography program
3  * Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at>
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  *
19  */
20 
21 #ifndef SH_SAMPLEVALUEADJACENCYLIST_H
22 #define SH_SAMPLEVALUEADJACENCYLIST_H
23 
24 #include <vector>
25 
26 #include "SampleValue.h"
27 #include "common.h"
28 
34  public:
39 
40  std::vector<SampleValue*>& operator[] (const SampleValueLabel lbl)
41  { return AdjacencyList[lbl] ; } ;
42 
43  std::vector<SampleValue*>& operator[] (const SampleValue* sv)
44  { return AdjacencyList[sv->getLabel()] ; } ;
45 
46  unsigned long getNumRows (void) const
47  { return AdjacencyList.size() ; } ;
48 
52  bool operator== (const SampleValueAdjacencyList& sval) ;
53 
57  void sort (void) ;
58 
59  private:
60  std::vector<std::vector<SampleValue*> > AdjacencyList ;
61 
62  void quicksort (std::vector<SampleValue*>& oppneighs, UWORD32* distances, unsigned int l, unsigned int r) ;
67  unsigned int partition (std::vector<SampleValue*>& oppneighs, UWORD32* distances, unsigned int l, unsigned int r, UWORD32 x) ;
68  void swap (std::vector<SampleValue*>& oppneighs, UWORD32* distances, unsigned int i, unsigned int j) ;
69 } ;
70 
71 #endif // ndef SH_SAMPLEVALUEADJACENCYLIST_H
unsigned long getNumRows(void) const
Definition: SampleValueAdjacencyList.h:46
void sort(void)
Definition: SampleValueAdjacencyList.cc:63
UWORD32 SampleValueLabel
Definition: common.h:69
bool operator==(const SampleValueAdjacencyList &sval)
Definition: SampleValueAdjacencyList.cc:39
the value of a sample in a CvrStgFile
Definition: SampleValue.h:61
std::vector< std::vector< SampleValue * > > AdjacencyList
Definition: SampleValueAdjacencyList.h:60
unsigned long getLabel(void) const
Definition: SampleValue.h:128
void quicksort(std::vector< SampleValue * > &oppneighs, UWORD32 *distances, unsigned int l, unsigned int r)
Definition: SampleValueAdjacencyList.cc:81
an adjacency list-like data structur for sample values
Definition: SampleValueAdjacencyList.h:33
unsigned long UWORD32
Definition: common.h:45
unsigned int partition(std::vector< SampleValue * > &oppneighs, UWORD32 *distances, unsigned int l, unsigned int r, UWORD32 x)
Definition: SampleValueAdjacencyList.cc:92
SampleValueAdjacencyList(SampleValueLabel numsvs)
Definition: SampleValueAdjacencyList.cc:34
std::vector< SampleValue * > & operator[](const SampleValueLabel lbl)
Definition: SampleValueAdjacencyList.h:40
void swap(std::vector< SampleValue * > &oppneighs, UWORD32 *distances, unsigned int i, unsigned int j)
Definition: SampleValueAdjacencyList.cc:110