krandomsequence.h

/* This file is part of the KDE libraries
   Copyright (c) 1999 Sean Harmer <sh@astro.keele.ac.uk>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.
 
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/
#ifndef K_RANDOM_SEQUENCE_H
#define K_RANDOM_SEQUENCE_H
 
#include "tdelibs_export.h"
 
class KRandomSequencePrivate;
class TQGList;
class TDECORE_EXPORT KRandomSequence
{
public: 
  KRandomSequence( long lngSeed = 0 );

  virtual ~KRandomSequence();

  KRandomSequence(const KRandomSequence &a);
  
  KRandomSequence &operator=(const KRandomSequence &a);

  void setSeed( long lngSeed = 0 );

  double getDouble(); 
  
  unsigned long getLong(unsigned long max); 

  bool getBool(); 

  void randomize(TQGList *list);

  void modulate(int i);
    
private:
  void Draw(); // Generate the random number
  long m_lngSeed1;
  long m_lngSeed2;
  long m_lngShufflePos;
 
  static const int    m_nShuffleTableSize;
  long *m_ShuffleArray;
 
  KRandomSequencePrivate *d;
};
 
#endif