#pragma once

#ifndef STROKEDEFORMATION_IMPL_H

#define STROKEDEFORMATION_IMPL_H

/**

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

 */

#include "ext/StrokeDeformation.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

#include "ExtUtil.h"

#if defined(_WIN32) && (_MSC_VER <= 1200)

// to avoid annoying warning

#pragma warning(push)

#pragma warning(disable : 4251)

#endif

namespace ToonzExt {

class DVAPI StrokeDeformationImpl {

private:

  bool init(const ContextStatus *);

  bool computeStroke2Transform(const ContextStatus *s,

                               TStroke *&stroke2transform, double &w,

                               ToonzExt::Interval &extremes);

  ToonzExt::Potential *potential_;

  static TStroke

      *copyOfLastSelectedStroke_;  // deep copy stroke selected previously

  int cursorId_;

protected:

  TStroke *stroke2manipulate_;

  static TStroke *&getLastSelectedStroke();

  static void setLastSelectedStroke(TStroke *);

  static int &getLastSelectedDegree();

  static void setLastSelectedDegree(int degree);

  static ToonzExt::Intervals &getSpiresList();

  static ToonzExt::Intervals &getStraightsList();

  ToonzExt::StrokeParametricDeformer *deformer_;

  int shortcutKey_;

  double old_w0_;

  TPointD old_w0_pos_;

  // ref to simplify access

  std::vector<tstroke *=""> strokes_;</tstroke>

  StrokeDeformationImpl();

  /**

* Is this the correct deformation?

*/

  virtual bool check_(const ContextStatus *) = 0;

  /**

* Retrieve the nearest extremes to point selected.

*/

  virtual bool findExtremes_(const ContextStatus *, Interval &) = 0;

  virtual double findActionLength() = 0;

public:

  virtual ~StrokeDeformationImpl();

  ToonzExt::Interval getExtremes();

  static const ContextStatus *&getImplStatus();

  const TStroke *getStrokeSelected() const {

    if (getImplStatus()) return this->getImplStatus()->stroke2change_;

    return 0;

  }

  const TStroke *getCopiedStroke() const { return this->getStrokeSelected(); }

  /**

*Wrapper for activate.

*/

  virtual bool activate_impl(const ContextStatus *);

  /**

* Modify stroke.

*/

  virtual void update_impl(const TPointD &delta);

  /**

* Reduce control points and change stroke.

*/

  virtual TStroke *deactivate_impl();

  bool check(const ContextStatus *);

  /**

* Restore last good status.

*/

  virtual void reset();

  void setPotential(Potential *);

  /**

*Apply a designer on current deformation.

*/

  virtual void draw(Designer *);

  TStroke *getTransformedStroke();

  ToonzExt::Potential *getPotential();

  TPointD &oldW0();

  int getShortcutKey() const { return shortcutKey_; }

  int getCursorId() const { return cursorId_; }

  void setCursorId(int id) { cursorId_ = id; }

};

}

#if defined(_WIN32) && (_MSC_VER <= 1200)

#pragma warning(pop)

#endif

#endif /* STROKEDEFORMATION_IMPL_H */

//-----------------------------------------------------------------------------

//  End Of File

//-----------------------------------------------------------------------------