// Original Author: Rene Brun   05/02/97
// Modified for use in VEGA by D. Buskulic 21/03/03

#ifndef VEGA_VSelector
#define VEGA_VSelector


//////////////////////////////////////////////////////////////////////////
//                                                                      //
// VSelector                                                            //
//                                                                      //
// A utility class for FrameChannel selections.                         //
//                                                                      //
//////////////////////////////////////////////////////////////////////////


#ifndef ROOT_TObject
#include "TObject.h"
#endif
#ifndef ROOT_TString
#include "TString.h"
#endif
#include "FrameL.h"

class VVirtualFrameChannel;

class VSelector : public TObject {
protected:
   Int_t     mStatus;  //Selector status
   TString   mOption;  //option given to VFrameChannel::Process
   TObject  *mObject;  //current object if processing object (vs. VFrameChannel)
//    TList    *fInput;   //list of objects available during processing (on PROOF)
//    TList    *fOutput;  //list of objects created during processing (on PROOF)

public:
   VSelector();
   virtual            ~VSelector();
   virtual void        Init(VVirtualFrameChannel *) { }
   virtual void        Begin(VVirtualFrameChannel *) { }
   virtual const char *GetOption() const { return mOption.Data();}
   virtual Int_t       GetStatus() const {return mStatus;}
   virtual Bool_t      ProcessCut(FrameH*) { return kTRUE; }
   virtual Bool_t      ProcessFrame(FrameH*) { return kFALSE; }
   virtual Bool_t      ProcessVect(int, FrVect** , FrVect* ) { return kFALSE; }
   virtual void        SetOption(const char *option) { mOption = option; }
   virtual void        SetObject(TObject *obj) { mObject = obj; }
//   virtual void        SetInputList(TList *input) { mInput = input; }
   virtual void        SetStatus(Int_t status) { mStatus = status;}
//   virtual TList      *GetOutputList() const { return mOutput; }
   virtual void        Terminate() { }

   static  VSelector  *GetSelector(const char *filename);

   ClassDef(VSelector,0)  //A utility class for frame channel processing
};

#endif