/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

// $Id$
// $MpId: AliMpConstants.h,v 1.11 2006/05/24 13:58:07 ivana Exp $

/// \ingroup basic
/// \class AliMpConstants
/// \brief Globally used constants definition.
///
/// \author David Guez, Ivana Hrivnacova; IPN Orsay

#ifndef ALI_MP_CONSTANTS_H
#define ALI_MP_CONSTANTS_H

#include <TObject.h>
#include "AliMpPlaneType.h"

class AliMpConstants : public TObject
{
 public:
  AliMpConstants();
  virtual ~AliMpConstants();

  // static compare methods
  static Bool_t  IsEqual(Double_t length1, Double_t length2);
  static Bool_t  IsEqual(Double_t v1x, Double_t v1y, 
                         Double_t v2x, Double_t v2y);

  // static get methods
  static Double_t LengthTolerance();
  static Double_t LengthStep();
  static Int_t    StartPadIndex();
  static Int_t    NofCathodes();
  static Int_t    NofChambers();
  static Int_t    NofTrackingChambers();
  static Int_t    NofTriggerChambers();
  static Int_t    NofGeomModules();
  static Int_t    ManuMask(AliMp::PlaneType planeType);
  static Int_t    NofLocalBoards();
  static Int_t    TotalNofLocalBoards();
  static Int_t    ManuNofChannels();
  static Int_t    LocalBoardNofChannels();

 private:
                  /// unused derived functions
  virtual Bool_t  IsEqual(const TObject*) const { return true; }
 
  // static data members
  static const Double_t  fgkLengthTolerance;///< the length precision for tests
  static const Double_t  fgkLengthStep;     ///< \brief the step in length used to move from
                                            /// a geometric border inside (pad, motif)
  static const Int_t     fgkStartPadIndex;  ///< global pad indices start value
  static const Int_t     fgkNofCathodes;    ///< number of cathodes
  static const Int_t     fgkNofChambers;    ///< number of chambers
  static const Int_t     fgkNofTrackingChambers; ///< number of tracking chambers
  static const Int_t     fgkNofGeomModules; ///< number of geometry modules
  static const Int_t     fgkNonBendingManuMask; ///< bit to set to indicate a manu located in non-bending plane
  static const Int_t     fgkNofLocalBoards;  ///< number of notified trigger local boards 
  static const Int_t     fgkTotalNofLocalBoards; ///< total number of trigger local boards
  static const Int_t     fgkManuNofChannels; ///< max number of channels per manu
  static const Int_t     fgkLocalBoardNofChannels; ///< max number of channels per local trigger board
  
  ClassDef(AliMpConstants,6) //Class for globally used constants definition
};

// inline functions

                /// Return the length precision for tests
inline Double_t AliMpConstants::LengthTolerance() { return fgkLengthTolerance;}
                /// Return the step in length used to move from a geometric border
inline Double_t AliMpConstants::LengthStep()      { return fgkLengthStep;}
                /// Return global pad indices start value
inline Int_t    AliMpConstants::StartPadIndex()   { return fgkStartPadIndex;}
                /// Return number of cathodes
inline Int_t    AliMpConstants::NofCathodes()     { return fgkNofCathodes;}
                /// Return number of chambers
inline Int_t    AliMpConstants::NofChambers()     { return fgkNofChambers;}
                /// Return number of tracking chambers
inline Int_t    AliMpConstants::NofTrackingChambers() { return fgkNofTrackingChambers;}
                /// Return number of geometry modules
inline Int_t    AliMpConstants::NofGeomModules()  { return fgkNofGeomModules;}
                /// Return number of trigger local boards
inline Int_t    AliMpConstants::NofLocalBoards()  { return fgkNofLocalBoards;}
               /// Return total number of trigger local boards
inline Int_t    AliMpConstants::TotalNofLocalBoards()  { return fgkTotalNofLocalBoards;}
                /// Max number of channels per manu
inline Int_t    AliMpConstants::ManuNofChannels() { return fgkManuNofChannels; }
                /// Max number of channels per local board
inline Int_t    AliMpConstants::LocalBoardNofChannels() { return fgkLocalBoardNofChannels; }

#endif //ALI_MP_CONSTANTS_H