KDECore

krandomsequence.h

00001 /* This file is part of the KDE libraries
00002    Copyright (c) 1999 Sean Harmer <sh@astro.keele.ac.uk>
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 version 2 as published by the Free Software Foundation.
00007 
00008    This library is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011    Library General Public License for more details.
00012 
00013    You should have received a copy of the GNU Library General Public License
00014    along with this library; see the file COPYING.LIB.  If not, write to
00015    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016    Boston, MA 02110-1301, USA.
00017 */
00018 #ifndef K_RANDOM_SEQUENCE_H
00019 #define K_RANDOM_SEQUENCE_H
00020 
00021 #include "kdelibs_export.h"
00022 
00023 class KRandomSequencePrivate;
00024 class QGList;
00039 class KDECORE_EXPORT KRandomSequence
00040 {
00041 public: 
00055   KRandomSequence( long lngSeed = 0 );
00056 
00060   virtual ~KRandomSequence();
00061 
00065   KRandomSequence(const KRandomSequence &a);
00066   
00070   KRandomSequence &operator=(const KRandomSequence &a);
00071 
00078   void setSeed( long lngSeed = 0 );
00079 
00085   double getDouble(); 
00086   
00093   unsigned long getLong(unsigned long max); 
00094 
00100   bool getBool(); 
00101 
00107   void randomize(QGList *list);
00108 
00130   void modulate(int i);
00131     
00132 private:
00133   void Draw(); // Generate the random number
00134   long m_lngSeed1;
00135   long m_lngSeed2;
00136   long m_lngShufflePos;
00137 
00138   static const int    m_nShuffleTableSize;
00139   long *m_ShuffleArray;
00140 
00141   KRandomSequencePrivate *d;
00142 };
00143 
00144 #endif
00145
KDECore

krandomsequence.h

KDECore

API Reference
