HGCScintillatorDetId.h

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#ifndef DataFormats_ForwardDetId_HGCScintillatorDetId_H
#define DataFormats_ForwardDetId_HGCScintillatorDetId_H 1

#include <iosfwd>
#include "DataFormats/DetId/interface/DetId.h"
#include "DataFormats/ForwardDetId/interface/ForwardSubdetector.h"

/* \brief description of the bit assigment
   [0:8]   iphi index wrt x-axis on +z side
   [9:16]  |ieta| index (starting from |etamin|)
   [17:21] Layer #
   [22:24] Reserved for future extension
   [25:25] z-side (0 for +z; 1 for -z)
   [26:27] Type (0 fine divisions of scintillators;
                 1 coarse divisions of scintillators)
   [28:31] Detector type (HGCalHSc)
*/

class HGCScintillatorDetId : public DetId {

public:

  HGCScintillatorDetId();
  HGCScintillatorDetId(uint32_t rawid);
  HGCScintillatorDetId(int type, int layer, int ieta, int iphi);
  HGCScintillatorDetId(const DetId& id);
  HGCScintillatorDetId& operator=(const DetId& id);
  
  HGCScintillatorDetId geometryCell () const {return HGCScintillatorDetId (0, layer(), ieta(), iphi());}

  DetId::Detector subdet() const { return det(); }

  int type() const { return (id_>>kHGCalTypeOffset)&kHGCalTypeMask; }

  int zside() const { return (((id_>>kHGCalZsideOffset) & kHGCalZsideMask) ? -1 : 1); }

  int layer() const { return (id_>>kHGCalLayerOffset)&kHGCalLayerMask; }

  int ietaAbs() const { return (id_>>kHGCalEtaOffset)&kHGCalEtaMask; }
  int ieta()    const { return zside()*ietaAbs(); }

  int iphi() const { return (id_>>kHGCalPhiOffset)&kHGCalPhiMask; }
  std::pair<int,int> ietaphi() const { return std::pair<int,int>(ieta(),iphi()); }

  bool isEE()      const { return false; }
  bool isHE()      const { return true; }
  bool isForward() const { return true; }
  
  static const HGCScintillatorDetId Undefined;

private:

  static const int kHGCalPhiOffset      = 0;
  static const int kHGCalPhiMask        = 0x1FF;
  static const int kHGCalEtaOffset      = 9;
  static const int kHGCalEtaMask        = 0xFF;
  static const int kHGCalLayerOffset    = 17;
  static const int kHGCalLayerMask      = 0x1F;
  static const int kHGCalZsideOffset    = 25;
  static const int kHGCalZsideMask      = 0x1;
  static const int kHGCalTypeOffset     = 26;
  static const int kHGCalTypeMask       = 0x3;
};

std::ostream& operator<<(std::ostream&,const HGCScintillatorDetId& id);

#endif