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 "AliMUONDigit.h"
  22 #include "TClonesArray.h"
  23
  24 ///
  25 /// An iterator to access digits (stored into AliMUONData).
  26 ///
  27 /// Iteration can occur on tracking chambers only, trigger chambers only,
  28 /// or both.
  29 ///
  30
  31 //_____________________________________________________________________________
  32 AliMUONDataDigitIterator::AliMUONDataDigitIterator(const AliMUONData* data,
  33                                                    Int_t firstChamber,
  34                                                    Int_t lastChamber)
  35 :
  36 AliMUONVDataIterator(),
  37 fData(data),
  38 fFirstChamber(firstChamber),
  39 fLastChamber(lastChamber)
  40 {
  41   //
  42   // Ctor
  43   //
  44   Reset();
  45 }
  46
  47 //_____________________________________________________________________________
  48 AliMUONDataDigitIterator::AliMUONDataDigitIterator(const AliMUONDataDigitIterator& rhs)
  49 :
  50 AliMUONVDataIterator()
  51 {
  52   rhs.CopyTo(*this);
  53 }
  54
  55 //_____________________________________________________________________________
  56 AliMUONDataDigitIterator&
  57 AliMUONDataDigitIterator::operator=(const AliMUONDataDigitIterator& rhs)
  58 {
  59   rhs.CopyTo(*this);
  60   return *this;
  61 }
  62
  63 //_____________________________________________________________________________
  64 void
  65 AliMUONDataDigitIterator::CopyTo(AliMUONDataDigitIterator& destination) const
  66 {
  67   destination.fData=fData;
  68   destination.fFirstChamber=fFirstChamber;
  69   destination.fLastChamber=fLastChamber;
  70   destination.fCurrentDigit=fCurrentDigit;
  71   destination.fCurrentChamber=fCurrentChamber;
  72   destination.fDigits=fDigits;
  73 }
  74
  75 //_____________________________________________________________________________
  76 TObject*
  77 AliMUONDataDigitIterator::Next()
  78 {
  79   // Return current element and self-position to the next one.
  80
  81   TObject* rv(0x0);
  82
  83   if ( fDigits )
  84   {
  85     // get the pointer to be returned
  86     rv = fDigits->At(fCurrentDigit);
  87     // prepare for the next position, if it exists
  88     if ( fCurrentDigit < fDigits->GetLast() )
  89     {
  90       ++fCurrentDigit;
  91     }
  92     else
  93     {
  94       fCurrentDigit = 0;
  95       ++fCurrentChamber;
  96       if ( fCurrentChamber <= fLastChamber )
  97       {
  98         fDigits = fData->Digits(fCurrentChamber);
  99       }
 100       else
 101       {
 102         fDigits = 0x0;
 103       }
 104     }
 105   }
 106
 107   return rv;
 108 }
 109
 110 //_____________________________________________________________________________
 111 Bool_t
 112 AliMUONDataDigitIterator::Remove()
 113 {
 114   // Remove current element.
 115
 116   if ( fDigits )
 117   {
 118     fDigits->RemoveAt(fCurrentDigit);
 119     fDigits->Compress();
 120     return kTRUE;
 121   }
 122
 123   return kFALSE;
 124 }
 125
 126 //_____________________________________________________________________________
 127 void
 128 AliMUONDataDigitIterator::Reset()
 129 {
 130   fData->GetDigits();
 131   fCurrentDigit = 0;
 132   fCurrentChamber = fFirstChamber;
 133   fDigits = fData->Digits(fCurrentChamber);
 134 }