#ifndef VEGA_VConditionSet
#define VEGA_VConditionSet

//*-- Author :    Damir Buskulic   14/12/01

#include <string>
#include "TArrayC.h"
#include "TArrayD.h"
#include "TObjArray.h"
#include "VVirtualFrameInfoDB.h"
#include "VVirtualFrameChannel.h"
#include "VConditionFormula.h"

using namespace std;

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// VConditionSet                                                        //
//                                                                      //
// ABC for managing sets of conditions, i.e. conditions                 //
// that may have overlap(s) in time                                     //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

class VVirtualFrameInfoDB;
class VVirtualFrameChannel;
class VConditionFormula;

class VConditionSet
{
protected :
   VVirtualFrameInfoDB* mInfoDB;        // Database associated to this condition set
   string         mCondFormulaString;   // Formula applied on the conditions
   string         mSelFormulaString;    // Selection formula
   TObjArray*     mCurConditions;       // Current set of conditions
   TArrayC*       mActiveConditions;    // Active/Inactive flag for this set
   TArrayC*       mSelectionConditions; // Conditions activated for selection
   TArrayD*       mCurConditionStart;   // Start time of the current conditions
   TArrayD*       mCurConditionEnd;     // End time of the current conditions
   TArrayD*       mFolConditionStart;   // Start time of the conditions following the current ones
   VConditionFormula* mCondFormula;     // Formula applied on the conditions
   VConditionFormula* mSelFormula;      // Selection formula
   
public :

   VConditionSet();
   VConditionSet(VVirtualFrameInfoDB* infodb, const char* condfs, const char* selfs = 0);
   VConditionSet(VVirtualFrameChannel* fc, const char* condfs, const char* selfs = 0);
   virtual ~VConditionSet();
           void          Build(VVirtualFrameInfoDB* infodb, const char* condfs, const char* selfs);
   virtual Double_t      Eval(const char* formula);
   virtual VVirtualFrameInfoDB*  GetInfoDB() {return mInfoDB;}
   virtual void          SetActive(Int_t conditionnumber);
   virtual void          SetSelection(Int_t conditionnumber);
   virtual Int_t         NearestGESet(Double_t time);
   virtual Int_t         NearestGEFormSet(Double_t time);
   virtual Int_t         NextSet();
   virtual Int_t         NextFormSet();
   TObjArray*            GetCurConditions() {return mCurConditions;}
   virtual Double_t      GetIntersectionStart();
   virtual Double_t      GetIntersectionEnd();
   virtual Double_t      GetIntersectSelectStart();
   virtual Double_t      GetIntersectSelectEnd();
   virtual Double_t      GetLastConditionResult();
   virtual Double_t      GetLastSelectionResult();
   virtual const char*   GetCondFormula() {return mCondFormulaString.c_str();}
   virtual const char*   GetSelFormula() {return mSelFormulaString.c_str();}
   
   ClassDef(VConditionSet,0) // Helper for managing sets of conditions (selections)
};

#endif