FWNavigatorBase.h

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// -*- C++ -*-
#ifndef Fireworks_Core_FWNavigatorBase_h
#define Fireworks_Core_FWNavigatorBase_h
//
// Package:     newVersion
// Class  :     CmsShowNavigator
//

// system include files
#include <string>
#include <sigc++/sigc++.h>
#include <Rtypes.h>

// user include files
#include "Fireworks/Core/interface/FWConfigurable.h"

#include "DataFormats/Provenance/interface/EventID.h"

// forward declarations
class CmsShowMainBase;

namespace edm {
   class EventBase;
   class EventID;
}

class FWNavigatorBase : public FWConfigurable
{
public:
   enum EFilterState { kOff, kOn, kWithdrawn };
   enum EFilterMode  { kOr = 1, kAnd = 2 };
   
public:
   FWNavigatorBase(const CmsShowMainBase &);
   virtual ~FWNavigatorBase();

   //configuration management interface
   virtual void addTo(FWConfiguration&) const = 0;
   virtual void setFrom(const FWConfiguration&) = 0;

   virtual void nextEvent() = 0;
   virtual void previousEvent() = 0;
   virtual bool nextSelectedEvent() = 0;
   virtual bool previousSelectedEvent() = 0;
   virtual void firstEvent() = 0;
   virtual void lastEvent() = 0;
   // FIXME -- should be Long64_t.
   virtual void goToRunEvent(edm::RunNumber_t, edm::LuminosityBlockNumber_t, edm::EventNumber_t) = 0;

   virtual bool isLastEvent() = 0;
   virtual bool isFirstEvent() = 0;

   virtual const edm::EventBase* getCurrentEvent() const = 0;
   virtual int  getNSelectedEvents() = 0;
   virtual int  getNTotalEvents() = 0;

   sigc::signal<void> newEvent_;
private:
   FWNavigatorBase(const FWNavigatorBase&);    // stop default
   const FWNavigatorBase& operator=(const FWNavigatorBase&);    // stop default
   // ---------- member data --------------------------------
   // entry is an event index nubmer which runs from 0 to
   // #events or #selected_events depending on if we filter
   // events or not
   const CmsShowMainBase &m_main;
};

#endif