MUON/AliMUONDataDigitIterator.cxx

   1 /**************************************************************************
   2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3 *                                                                        *
   4 * Author: The ALICE Off-line Project.                                    *
   5 * Contributors are mentioned in the code where appropriate.              *
   6 *                                                                        *
   7 * Permission to use, copy, modify and distribute this software and its   *
   8 * documentation strictly for non-commercial purposes is hereby granted   *
   9 * without fee, provided that the above copyright notice appears in all   *
  10 * copies and that both the copyright notice and this permission notice   *
  11 * appear in the supporting documentation. The authors make no claims     *
  12 * about the suitability of this software for any purpose. It is          *
  13 * provided "as is" without express or implied warranty.                  *
  14 **************************************************************************/
  15
  16 // $Id$
  17
  18 #include "AliMUONDataDigitIterator.h"
  19
  20 #include "AliMUONData.h"
  21 #include "TClonesArray.h"
  22
  23 ///
  24 /// \class AliMUONDataDigitIterator
  25 ///
  26 /// An iterator to access digits (stored into AliMUONData).
  27 ///
  28 /// Iteration can occur on tracking chambers only, trigger chambers only,
  29 /// or both.
  30 ///
  31 /// \author L. Aphecetche
  32 ///
  33
  34 /// \cond CLASSIMP
  35 ClassImp(AliMUONDataDigitIterator)
  36 /// \endcond
  37
  38 //_____________________________________________________________________________
  39 AliMUONDataDigitIterator::AliMUONDataDigitIterator(const AliMUONData* data,
  40                                                    Int_t firstChamber,
  41                                                    Int_t lastChamber)
  42 :
  43 AliMUONVDataIterator(),
  44 fData(data),
  45 fFirstChamber(firstChamber),
  46 fLastChamber(lastChamber)
  47 {
  48   /// Standard constructor
  49   Reset();
  50 }
  51
  52 //_____________________________________________________________________________
  53 AliMUONDataDigitIterator::AliMUONDataDigitIterator(const AliMUONDataDigitIterator& rhs)
  54 :
  55 AliMUONVDataIterator()
  56 {
  57   /// Copy constructor
  58
  59   rhs.CopyTo(*this);
  60 }
  61
  62 //_____________________________________________________________________________
  63 AliMUONDataDigitIterator::~AliMUONDataDigitIterator()
  64 {
  65   /// Destructor
  66 }
  67
  68 //_____________________________________________________________________________
  69 AliMUONDataDigitIterator&
  70 AliMUONDataDigitIterator::operator=(const AliMUONDataDigitIterator& rhs)
  71 {
  72   /// Assignment operator
  73
  74   rhs.CopyTo(*this);
  75   return *this;
  76 }
  77
  78 //_____________________________________________________________________________
  79 void
  80 AliMUONDataDigitIterator::CopyTo(AliMUONDataDigitIterator& destination) const
  81 {
  82   /// Copy *this to destination
  83   destination.fData=fData;
  84   destination.fFirstChamber=fFirstChamber;
  85   destination.fLastChamber=fLastChamber;
  86   destination.fCurrentDigit=fCurrentDigit;
  87   destination.fCurrentChamber=fCurrentChamber;
  88   destination.fDigits=fDigits;
  89 }
  90
  91 //_____________________________________________________________________________
  92 TObject*
  93 AliMUONDataDigitIterator::Next()
  94 {
  95   /// Return current element and self-position to the next one.
  96
  97   TObject* rv(0x0);
  98
  99   if ( fDigits )
 100   {
 101     // get the pointer to be returned
 102     rv = fDigits->At(fCurrentDigit);
 103     // prepare for the next position, if it exists
 104     if ( fCurrentDigit < fDigits->GetLast() )
 105     {
 106       ++fCurrentDigit;
 107     }
 108     else
 109     {
 110       fCurrentDigit = 0;
 111       ++fCurrentChamber;
 112       if ( fCurrentChamber <= fLastChamber )
 113       {
 114         fDigits = fData->Digits(fCurrentChamber);
 115       }
 116       else
 117       {
 118         fDigits = 0x0;
 119       }
 120     }
 121   }
 122
 123   return rv;
 124 }
 125
 126 //_____________________________________________________________________________
 127 Bool_t
 128 AliMUONDataDigitIterator::Remove()
 129 {
 130   /// Remove current element.
 131
 132   if ( fDigits )
 133   {
 134     fDigits->RemoveAt(fCurrentDigit);
 135     fDigits->Compress();
 136     return kTRUE;
 137   }
 138
 139   return kFALSE;
 140 }
 141
 142 //_____________________________________________________________________________
 143 void
 144 AliMUONDataDigitIterator::Reset()
 145 {
 146   /// Reset the iterator
 147   fData->GetDigits();
 148   fCurrentDigit = 0;
 149   fCurrentChamber = fFirstChamber;
 150   fDigits = fData->Digits(fCurrentChamber);
 151 }