TGo4FitDependency.h

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// $Id: TGo4FitDependency.h 478 2009-10-29 12:26:09Z linev $
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum für Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------

#ifndef TGO4FITDEPENDENCY_H
#define TGO4FITDEPENDENCY_H

#include "TObject.h"
#include "TString.h"

class TFormula;

class TGo4FitDependency : public TObject {
   public:
      TGo4FitDependency();
      TGo4FitDependency(const char* iParameter, const char* iExpression);
      TGo4FitDependency(const char* iParameter, Double_t InitValue);
      virtual ~TGo4FitDependency();

      void SetParameter(const char* iParameter);
      void SetInitValue(Double_t InitValue);
      void SetExpression(const char* iExpression);

      const TString& GetParameter() { return fxParameter; }
      const TString& GetExpression() { return fxExpression; }
      Double_t GetInitValue() { return fdInitValue; }

      Bool_t IsResultDepend() { return fxParameter.Length()==0; }
      Bool_t IsInitValue() { return fxExpression.Length()==0; }

      void Initialize(Int_t iNumPar, const char* iFormula);
      Double_t ExecuteDependency(Double_t* Params);
      void Finalize();

      virtual void Print(Option_t* option) const;

   protected:
      TString fxParameter;
      TString fxExpression;
      Double_t fdInitValue;
      Int_t fiNumPar;                  
      TFormula *fxFormula;             

   ClassDef(TGo4FitDependency,1)
};
#endif // TGO4FITDEPENDENCY_H