#pragma once

#ifndef LINEAR_POTENTIAL_H
#define LINEAR_POTENTIAL_H

/**
 * @author  Fabrizio Morciano <fabrizio.morciano@gmail.com>
 */

//#include "tcommon.h"
//#include "tstroke.h"

#include "ext/Potential.h"

#undef DVAPI
#undef DVVAR
#ifdef TNZEXT_EXPORTS
#define DVAPI DV_EXPORT_API
#define DVVAR DV_EXPORT_VAR
#else
#define DVAPI DV_IMPORT_API
#define DVVAR DV_IMPORT_VAR
#endif

namespace ToonzExt {
class DVAPI LinearPotential final : public Potential {
public:
  virtual ~LinearPotential();

  double value_(double radiusToTest) const override;

  void setParameters_(const TStroke *ref, double w,
                      double actionLength) override;

  Potential *clone() override;

private:
  double compute_shape(double) const;  // funzione ausiliaria per
  // il calcolo del parametro
  // da usare

  double compute_value(double) const;  // funzione ausiliaria per
  // il calcolo del potenziale senza
  // controllo del parametro
  const TStroke *ref_;
  double
      /**
* @brief Range of mapping
*
* Only an interval of potential function will be used to
* map the tranformation.
*/
      range_,
      par_,            //! Parameter of selection.
      actionLength_,   //! Action length, how many units to move.
      strokeLength_,   //! Stroke Length.
      lenghtAtParam_,  //! Length at <code>par_</code>
      leftFactor_,     //! How many units to move on the left of curve.
      rightFactor_;    //! How many units to move on the right of curve.
};
}
#endif /* LINEAR_POTENTIAL_H */
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