LUCID_SensitiveDetector.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef LUCID_G4_SD_LUCID_SensitiveDetector_h
#define LUCID_G4_SD_LUCID_SensitiveDetector_h
 
// Base class
#include "G4VSensitiveDetector.hh"
 
// Athena headers
#include "LUCID_SimEvent/LUCID_SimHitCollection.h"
#include <gtest/gtest_prod.h>
 
#include <utility>
 
class LUCID_HitHelper;
 
class G4Step;
class G4TouchableHistory;
 
class LUCID_SensitiveDetector : public G4VSensitiveDetector
{
 FRIEND_TEST( LUCID_SensitiveDetectortest, ProcessHits );
 FRIEND_TEST( LUCID_SensitiveDetectortest, AddHit );
public:
  // Constructor
  LUCID_SensitiveDetector(const std::string& name, const std::string& hitCollectionName);
 
  // Destructor
  ~LUCID_SensitiveDetector() { /* I don't own myHitColl if all has gone well */ }
 
  // Initialize from G4
  void Initialize(G4HCofThisEvent *) override final;
 
  // Process the hits from G4
  bool ProcessHits(G4Step*, G4TouchableHistory*) override final;

  template <class... Args> void AddHit(Args&&... args)
  {
    if (m_HitColl) {
      m_HitColl->Emplace(std::forward<Args>(args)...);
    }
  }
 
 private:
  LUCID_SimHitCollection* getHitCollection() const;
 
  LUCID_SensitiveDetector            (const LUCID_SensitiveDetector&);
  LUCID_SensitiveDetector& operator= (const LUCID_SensitiveDetector&);
 
  std::string m_hitCollectionName;
  // Non-owning cache set by Initialize; HitCollectionMap owns the collection.
  LUCID_SimHitCollection* m_HitColl{};
  LUCID_HitHelper*           m_hit;
};
 
#endif //LUCID_G4_SD_LUCID_SensitiveDetector_h