// @(#)root/tmva $Id: TMVA_Timer.h,v 1.2 2006/05/09 08:37:06 brun Exp $    
// Author: Andreas Hoecker, Helge Voss, Kai Voss 

/**********************************************************************************
 * Project: TMVA - a Root-integrated toolkit for multivariate data analysis       *
 * Package: TMVA                                                                  *
 * Class  : TMVA_Timer                                                            *
 *                                                                                *
 * Description:                                                                   *
 *      Timing information for methods training                                   *
 *                                                                                *
 * Authors (alphabetical):                                                        *
 *      Andreas Hoecker <Andreas.Hocker@cern.ch> - CERN, Switzerland              *
 *      Xavier Prudent  <prudent@lapp.in2p3.fr>  - LAPP, France                   *
 *      Helge Voss      <Helge.Voss@cern.ch>     - MPI-KP Heidelberg, Germany     *
 *      Kai Voss        <Kai.Voss@cern.ch>       - U. of Victoria, Canada         *
 *                                                                                *
 * Copyright (c) 2005:                                                            *
 *      CERN, Switzerland,                                                        * 
 *      U. of Victoria, Canada,                                                   * 
 *      MPI-KP Heidelberg, Germany                                                * 
 *      LAPP, Annecy, France                                                      *
 *                                                                                *
 * Redistribution and use in source and binary forms, with or without             *
 * modification, are permitted according to the terms listed in LICENSE           *
 * (http://mva.sourceforge.net/license.txt)                                       *
 *                                                                                *
 * File and Version Information:                                                  *
 * $Id: TMVA_Timer.h,v 1.2 2006/05/09 08:37:06 brun Exp $    
 **********************************************************************************/

#ifndef ROOT_TMVA_Timer
#define ROOT_TMVA_Timer

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// TMVA_Timer                                                           //
//                                                                      //
// Timing information for training and evaluation of MVA methods        //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

#include "time.h"
#include "TString.h"
#include "TStopwatch.h"

// ensure that clock_t is always defined
#if defined(__SUNPRO_CC) && defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE - 0 == 500 )
#ifndef _CLOCK_T
#define _CLOCK_T
typedef long clock_t; // relative time in a specified resolution
#endif /* ifndef _CLOCK_T */
#endif // SUN and XOPENSOURCE=500

class TMVA_Timer : public TStopwatch {
  
 public:
  
  TMVA_Timer( Bool_t colourfulOutput = kTRUE );
  TMVA_Timer( Int_t ncounts, TString prefix = "", Bool_t colourfulOutput = kTRUE );
  virtual ~TMVA_Timer( void );
  
  void Init ( Int_t ncounts );
  void Reset( void );

  // when the "Scientific" flag set, time is returned with subdecimals
  // for algorithm timing measurement
  TString GetElapsedTime  ( Bool_t Scientific = kTRUE  );
  TString GetLeftTime     ( Int_t icounts              );
  void    DrawProgressBar ( Int_t icounts              );
			  
 private:

  Double_t  ElapsedSeconds( void             );
  TString   SecToText     ( Double_t, Bool_t );

  Int_t     fNcounts;
  TString   fPrefix;
  Bool_t    fColourfulOutput;

  static const TString fgMethodName;
  static const Int_t   fgNbins;  

  ClassDef(TMVA_Timer,0) //Timing information for training and evaluation of MVA methods
};

#endif