#ifndef VEGA_VVirtualFrameChannelPlayer
#define VEGA_VVirtualFrameChannelPlayer

//*-- Author :    Damir Buskulic   21/03/03

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// VVirtualFrameChannelPlayer                                           //
//                                                                      //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

#ifndef ROOT_TClass
#include "TClass.h"
#endif
#ifndef VEGA_VVirtualFrameChannel
#include "VVirtualFrameChannel.h"
#endif

class VSelector;

class VVirtualFrameChannelPlayer : public TObject
{

private:
   static TClass*  mgPlayer;         // Pointer to current frame channel
   
   // Variables for the processing
   string          mProcVectList;    // list of channels/vectors to be processed
   double          mProcStart;       // start time of processing
   double          mProcLength;      // length (in time) for the processing
   double          mProcStep;        // time step of the processing

public:
   VVirtualFrameChannelPlayer();
   virtual ~VVirtualFrameChannelPlayer() {}
   virtual Int_t        MakeClass(const char *classname, const char* cond="", Option_t *option="") = 0;
           const char*  GetProcessList() {return mProcVectList.c_str();}
           Double_t     GetProcessStart() {return mProcStart;}
           Double_t     GetProcessLength() {return mProcLength;}
           Double_t     GetProcessStep() {return mProcStep;}
           void         SetProcessList(const char* list) {mProcVectList = list;}
           void         SetProcessStart(Double_t start) {mProcStart = start;}
           void         SetProcessLength(Double_t length) {mProcLength = length;}
           void         SetProcessStep(Double_t step) {mProcStep = step;}
   virtual Int_t        Process(const char *filename, double starttime, double length, const char* cond="",Option_t *option="") = 0;
   virtual Int_t        Process(VSelector *selector, double starttime, double length, const char* cond="",Option_t *option="") = 0;
   virtual void         SetFrameChannel(VVirtualFrameChannel *fc) = 0;
   virtual void         StartViewer(int mode=0) = 0;
    
   static  VVirtualFrameChannelPlayer *FrameChannelPlayer(VVirtualFrameChannel *obj);
   static void          SetPlayer(const char *player);
   static void          StartEmptyViewer();

    ClassDef(VVirtualFrameChannelPlayer,0)  // Abstract interface for Frame Channel players
};

#endif