kev/Drawer/Module/GeoSigmaDraw/CurveEditorSpline.h

#pragma once
#include "CurveEditorBase.h"
#include <memory>

namespace NItem {

/*
 * ????????????????????????????
 *
 */
class CurveEditorSpline : public CurveEditorBase {
public:
  CurveEditorSpline(CSigmaDoc *pDoc)
      : CurveEditorBase(pDoc), m_pMarkCurve(nullptr)
  {
  }

  virtual ~CurveEditorSpline(void);

protected:
  // ????????????????????????
  void OnDrawDragPreview() override;

  // ????????????????????????
  void OnCalculateDragEffect(CPointList *pList) override;

  void OnModeInitialize() override; // ???? m_pMarkCurve
  void OnDragMove(int nIndex,
                  CPoint2D pt) override; // ???? m_pControlCurve ?<3F><>????<3F><>??

  void DrawAssistant(CDC *pDC, int mouseX, int mouseY) override;

  CCurveEx *GetControlCurve(void) override;

  // ??<3F><>???? virtual int AddHandle(double l0)
  int AddHandle(double l0) override;

private:
  // ?????????<3F><>?????????????
  std::unique_ptr<CCurveEx> m_pMarkCurve;
  std::unique_ptr<CCurveEx> m_pControlCurve;

  // ???????????????
  void GetMarkCurve(); // ????????????
  void GetDragSplinePoint(CPoint2D &dp, CPointList &NewPointList, int &begin,
                          int &end);

  /**
   * ??????????????????????
   *
   * \param handleInex ?????????
   * \return ???????????????
   */
  int GetOriginalIndex(int handleInex);

  void BuildFirstHandlePoints(const CPoint2D &dp, double lEnd,
                              int nextHandleInex, CPointList &list);
  void BuildLastHandlePoints(const CPoint2D &dp, double lBegin,
                             int prevHandleInex, CPointList &list);
  void BuildMiddleHandlePoints(const CPoint2D &dp, double lBegin, double lEnd,
                               int prevHandleInex, int nextHandleIndex,
                               CPointList &list);
};

}; // namespace NItem