Geant4StackingAction.h

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// $Id: $
//==========================================================================
//  AIDA Detector description implementation for LCD
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author     : M.Frank
//
//==========================================================================
#ifndef DD4HEP_DDG4_GEANT4STACKINGACTION_H
#define DD4HEP_DDG4_GEANT4STACKINGACTION_H

// Framework include files
#include "DDG4/Geant4Action.h"

namespace DD4hep {

  namespace Simulation {

    // Forward declarations
    class Geant4StackingAction;
    class Geant4SharedStackingAction;
    class Geant4StackingActionSequence;


    class Geant4StackingAction: public Geant4Action {
    public:
      typedef Geant4SharedStackingAction shared_type;
    public:
      Geant4StackingAction(Geant4Context* ctxt, const std::string& name);
      virtual ~Geant4StackingAction();
      virtual void newStage() {
      }
      virtual void prepare() {
      }
    };


    class Geant4SharedStackingAction : public Geant4StackingAction {
    protected:
      Geant4StackingAction* m_action;
    public:
      Geant4SharedStackingAction(Geant4Context* context, const std::string& nam);
      virtual ~Geant4SharedStackingAction();
      virtual void configureFiber(Geant4Context* thread_context);
      virtual void use(Geant4StackingAction* action);
      virtual void newStage();
      virtual void prepare();
    };


    class Geant4StackingActionSequence: public Geant4Action {
    protected:
      CallbackSequence m_newStage;
      // Callback sequence for the prepare call
      CallbackSequence m_prepare;
      Actors<Geant4StackingAction> m_actors;
    public:
      Geant4StackingActionSequence(Geant4Context* ctxt, const std::string& name);
      virtual ~Geant4StackingActionSequence();
      virtual void updateContext(Geant4Context* ctxt);
      virtual void configureFiber(Geant4Context* thread_context);
      Geant4StackingAction* get(const std::string& name) const;
      template <typename T> void callAtNewStage(T* p, void (T::*f)()) {
        m_newStage.add(p, f);
      }
      template <typename T> void callAtPrepare(T* p, void (T::*f)()) {
        m_prepare.add(p, f);
      }
      void adopt(Geant4StackingAction* action);
      virtual void newStage();
      virtual void prepare();
    };

  }    // End namespace Simulation
}      // End namespace DD4hep

#endif // DD4HEP_DDG4_GEANT4STACKINGACTION_H