#pragma once

#ifndef MODIFIERTANGENTS_INCLUDED

#define MODIFIERTANGENTS_INCLUDED

// TnzTools includes

#include <tools inputmanager.h=""></tools>

#undef DVAPI

#undef DVVAR

#ifdef TNZTOOLS_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

//===================================================================

//*****************************************************************************************

//    TModifierTangents definition

//*****************************************************************************************

class DVAPI TModifierTangents: public TInputModifier {

public:

  typedef TSubTrackHandler Handler;

  class DVAPI Interpolator: public TTrackInterpolator {

  public:

    TTrackTangentList tangents;

    using TTrackInterpolator::TTrackInterpolator;

    TTrackPoint interpolate(double index) override;

  };

  static TTrackTangent calcTangent(const TTrack &track, int index);

  void modifyTrack(

    const TTrack &track,

    TTrackList &outTracks ) override;

};

#endif