#pragma once

#ifndef CONTROLPOINT_SELECTION_INCLUDED

#define CONTROLPOINT_SELECTION_INCLUDED

#include "toonzqt/selection.h"

#include "tools/tool.h"

#include "tstroke.h"

#include "tvectorimage.h"

#include "tcurves.h"

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

// ControlPointEditorStroke

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

class ControlPointEditorStroke {

private:

  class ControlPoint {

  public:

    int m_pointIndex;

    TThickPoint m_speedIn;

    TThickPoint m_speedOut;

    bool m_isCusp;

    ControlPoint(int i, TThickPoint speedIn, TThickPoint speedOut,

                 bool isCusp = true)

        : m_pointIndex(i)

        , m_speedIn(speedIn)

        , m_speedOut(speedOut)

        , m_isCusp(isCusp) {}

    ControlPoint() {}

  };

  QList<controlpoint> m_controlPoints;</controlpoint>

  TVectorImageP m_vi;

  int m_strokeIndex;

  void adjustChunkParity();

  /*! Reset m_controlPoints. */

  void resetControlPoints();

  TThickPoint getPureDependentPoint(int index) const;

  void getDependentPoints(

      int index, std::vector<std::pair<int, tthickpoint="">> &points) const;</std::pair<int,>

  void updatePoints();

  void updateDependentPoint(int index);

  inline int nextIndex(int index) const;

  inline int prevIndex(int index) const;

  void moveSpeedIn(int index, const TPointD &delta, double minDistance);

  void moveSpeedOut(int index, const TPointD &delta, double minDistance);

  void moveSingleControlPoint(int index, const TPointD &delta);

public:

  enum PointType { CONTROL_POINT, SPEED_IN, SPEED_OUT, SEGMENT, NONE };

  ControlPointEditorStroke() : m_vi() {}

  ~ControlPointEditorStroke() { m_controlPoints.clear(); }

  ControlPointEditorStroke *clone() const;

  /*! Modify stroke: between two linear or cusp point must be a pair chunk

number.

PAY ATTENTION: Can add control point in the stroke. */

  bool setStroke(const TVectorImageP &vi, int strokeIndex);

  TStroke *getStroke() const {

    return m_vi ? m_vi->getStroke(m_strokeIndex) : 0;

  }

  void setStrokeIndex(int strokeIndex) { m_strokeIndex = strokeIndex; }

  int getStrokeIndex() const { return m_strokeIndex; }

  int getControlPointCount() const { return m_controlPoints.size(); }

  TThickPoint getControlPoint(int index) const;

  /*! From index point in \b ControlPointEditorStroke to index point in \b

   * TStroke. */

  int getIndexPointInStroke(int index) const;

  TThickPoint getSpeedInPoint(int index) const;

  TThickPoint getSpeedOutPoint(int index) const;

  //! Return true if index point is a cusp.

  bool isCusp(int index) const;

  //! Set \b m_isCusp of \b index point to \b isCusp.

  /*! If isCusp == false check \b setSpeedIn and modify speed. */

  void setCusp(int index, bool isCusp, bool setSpeedIn);

  bool isSpeedInLinear(int index) const;

  bool isSpeedOutLinear(int index) const;

  void setLinearSpeedIn(int index, bool linear = true,

                        bool updatePoints = true);

  void setLinearSpeedOut(int index, bool linear = true,

                         bool updatePoints = true);

  /*! If isLinear==true set to "0" the speedIn and speedOut value of index

point; otherwise set to default value.

Return true if speedIn or speedOut is modified.

If updatePoints is true update dependent point after.*/

  bool setLinear(int index, bool isLinear, bool updatePoints = true);

  bool setControlPointsLinear(std::set<int> points, bool isLinear);</int>

  /*! Move \b index ControlPoint of \b delta. */

  void moveControlPoint(int index, const TPointD &delta);

  /*! Add a ControlPoint in \b point. Return added ControlPoint index. */

  int addControlPoint(const TPointD &pos);

  void deleteControlPoint(int index);

  /*! Move speed in \b index of \b delta. */

  void moveSpeed(int index, const TPointD &delta, bool isIn,

                 double minDistance);

  /*! Move segment between \b beforeIndex and \b nextIndex of \b delta. */

  void moveSegment(int beforeIndex, int nextIndex, const TPointD &delta,

                   const TPointD &pos);

  /*!Return NONE if \b pos is far from stroke.*/

  PointType getPointTypeAt(const TPointD &pos, double &distance2,

                           int &index) const;

  bool isSelfLoop() const {

    TStroke *stroke = getStroke();

    return stroke && stroke->isSelfLoop();

  }

};

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

// ControlPointSelection

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

class ControlPointSelection final : public QObject, public TSelection {

  Q_OBJECT

private:

  std::set<int> m_selectedPoints;</int>

  int m_strokeIndex;

  ControlPointEditorStroke *m_controlPointEditorStroke;

public:

  ControlPointSelection() : m_controlPointEditorStroke(0), m_strokeIndex(-1) {}

  void setControlPointEditorStroke(

      ControlPointEditorStroke *controlPointEditorStroke) {

    m_controlPointEditorStroke = controlPointEditorStroke;

  }

  bool isEmpty() const override { return m_selectedPoints.empty(); }

  void selectNone() override { m_selectedPoints.clear(); }

  bool isSelected(int index) const;

  void select(int index);

  void unselect(int index);

  void deleteControlPoints();

  void addMenuItems(QMenu *menu);

  void enableCommands() override;

protected slots:

  void setLinear();

  void setUnlinear();

};

#endif  // CONTROLPOINT_SELECTION_INCLUDED