GenericEventHandler.h

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//==========================================================================
//  AIDA Detector description implementation 
//--------------------------------------------------------------------------
// 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 DDEVE_GENERICEVENTHANDLER_H
#define DDEVE_GENERICEVENTHANDLER_H
 
// Framework include files
#include "DDEve/EventHandler.h"
 
// Forward declarations
 
namespace dd4hep {
 
 
  class GenericEventHandler : public EventHandler  {
  protected:
    typedef std::set<EventConsumer*> Subscriptions;
    std::map<std::string,EventHandler*> m_handlers;
    EventHandler* m_current;
    Subscriptions m_subscriptions;
 
    EventHandler* current() const;
  public:
    GenericEventHandler();
    virtual ~GenericEventHandler();
    virtual const TypedEventCollections& data()  const  override   { return current()->data();  }
    virtual long numEvents() const  override;
    virtual std::string datasourceName() const  override;
    virtual CollectionType collectionType(const std::string& collection) const  override;
    virtual size_t collectionLoop(const std::string& collection, DDEveHitActor& actor)  override;
    virtual size_t collectionLoop(const std::string& collection, DDEveParticleActor& actor)  override;
    virtual bool Open(const std::string& type, const std::string& file_name)  override;
    virtual bool NextEvent()  override;
    virtual bool PreviousEvent()  override;
    virtual bool GotoEvent(long event_number)  override;
    virtual void Subscribe(EventConsumer* display);
    virtual void Unsubscribe(EventConsumer* display);
 
#ifndef __CINT__
    virtual void NotifySubscribers(void (EventConsumer::*pmf)(EventHandler&));
#endif
 
    ClassDefOverride(GenericEventHandler,0);
  };
} /* End namespace dd4hep   */
 
#endif // DDEVE_GENERICEVENTHANDLER_H