#pragma once

#ifndef ASSISTANTLINE_INCLUDED

#define ASSISTANTLINE_INCLUDED

// TnzTools includes

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

#include <tools assistants="" guidelineline.h=""></tools>

// TnzCore includes

#include <tgl.h></tgl.h>

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

//    TAssistantLine definition

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

class TAssistantLine final : public TAssistant {

  Q_DECLARE_TR_FUNCTIONS(TAssistantVanishingPoint)

public:

  const TStringId m_idRestricktA;

  const TStringId m_idRestricktB;

  const TStringId m_idParallel;

  const TStringId m_idGrid;

  const TStringId m_idPerspective;

protected:

  TAssistantPoint &m_a;

  TAssistantPoint &m_b;

  TAssistantPoint &m_grid0;

  TAssistantPoint &m_grid1;

public:

  TAssistantLine(TMetaObject &object);

  static QString getLocalName();

  void updateTranslation() const override;

  inline bool getRestrictA() const

    { return data()[m_idRestricktA].getBool(); }

  inline bool getRestrictB() const

    { return data()[m_idRestricktB].getBool(); }

  inline bool getParallel() const

    { return data()[m_idParallel].getBool(); }

  inline bool getGrid() const

    { return data()[m_idGrid].getBool(); }

  inline bool getPerspective() const

    { return data()[m_idPerspective].getBool(); }

  void onDataChanged(const TVariant &value) override;

private:

  void fixGrid(const TPointD &prevA, const TPointD &prevB);

public:

  void onMovePoint(TAssistantPoint &point, const TPointD &position) override;

  void getGuidelines(

    const TPointD &position,

    const TAffine &toTool,

    TGuidelineList &outGuidelines ) const override;

  static void drawRuler(

    const TPointD &a,

    const TPointD &b,

    const TPointD &grid0,

    const TPointD &grid1,

    const TPointD *perspectiveBase,

    double alpha );

  static void drawLine(

    const TAffine &matrix,

    const TAffine &matrixInv,

    double pixelSize,

    const TPointD &a,

    const TPointD &b,

    bool restrictA,

    bool restrictB,

    double alpha );

  static void drawGrid(

    const TPointD &a,

    const TPointD &b,

    const TPointD &grid0,

    const TPointD &grid1,

    bool restrictA,

    bool restrictB,

    bool perspective,

    double alpha );

  void draw(TToolViewer *viewer, bool enabled) const override;

};

#endif