signatureModifierEvaluator.h

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/*******************************************************************************
** Copyright (c) 2005 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/

#pragma once

#include <vlutil/vlString.h>

class DtSignatureModifierEvaluatorFactory;
class DtVrfObject;
class DtSignatureModifier;

#include "vrfobjcore/vrfobjcoreDefines.h"
class DT_DLL_vrfobjcore DtSignatureModifierEvaluator
{
private:
   DtSignatureModifierEvaluator();
   DtSignatureModifierEvaluator(const DtSignatureModifierEvaluator& orig);
   DtSignatureModifierEvaluator& operator=(const DtSignatureModifierEvaluator& orig);

public:
   DtSignatureModifierEvaluator(const DtSignatureModifier& modifier, 
      const DtVrfObject* hostObject);

   virtual ~DtSignatureModifierEvaluator();

   virtual bool init();

   virtual DtString type() const = 0;

   virtual double modifySignature(double inputSignature) const = 0;

   static void setFactory(DtSignatureModifierEvaluatorFactory* factory);

   static DtSignatureModifierEvaluator* createSignatureModifierEvaluator(
      const DtString& type,
      const DtSignatureModifier& modifier, const DtVrfObject* hostObject);

protected:
   const DtSignatureModifier& mySignatureModifier;
   const DtVrfObject* myHostObject;

   static DtSignatureModifierEvaluatorFactory* theFactory;
};