// Created on: 1992-05-22
// Created by: Jean Claude VAUTHIER
// Copyright (c) 1992-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _DrawTrSurf_BSplineCurve_HeaderFile
#define _DrawTrSurf_BSplineCurve_HeaderFile

#include <Draw_MarkerShape.hxx>
#include <Draw_Color.hxx>
#include <DrawTrSurf_Curve.hxx>

class Geom_BSplineCurve;

DEFINE_STANDARD_HANDLE(DrawTrSurf_BSplineCurve, DrawTrSurf_Curve)

class DrawTrSurf_BSplineCurve : public DrawTrSurf_Curve
{
  DEFINE_STANDARD_RTTIEXT(DrawTrSurf_BSplineCurve, DrawTrSurf_Curve)
  Draw_Drawable3D_FACTORY
public:

  //! creates a drawable BSpline curve from a BSpline curve of package Geom.
  Standard_EXPORT DrawTrSurf_BSplineCurve (const Handle(Geom_BSplineCurve)& C);

  //! creates a drawable BSpline curve from a BSpline curve of package Geom.
  Standard_EXPORT DrawTrSurf_BSplineCurve (const Handle(Geom_BSplineCurve)& C,
                                           const Draw_Color& CurvColor, const Draw_Color& PolesColor, const Draw_Color& KnotsColor, const Draw_MarkerShape KnotsShape,
                                           const Standard_Integer KnotsSize, const Standard_Boolean ShowPoles, const Standard_Boolean ShowKnots,
                                           const Standard_Integer Discret, const Standard_Real Deflection, const Standard_Integer DrawMode);

  Standard_EXPORT virtual void DrawOn (Draw_Display& dis) const Standard_OVERRIDE;

  Standard_EXPORT void DrawOn (Draw_Display& dis,
                               const Standard_Boolean ShowPoles, const Standard_Boolean ShowKnots) const;

  Standard_EXPORT void DrawOn (Draw_Display& dis,
                               const Standard_Real U1, const Standard_Real U2, const Standard_Integer Pindex,
                               const Standard_Boolean ShowPoles = Standard_True, const Standard_Boolean ShowKnots = Standard_True) const;

  void ShowPoles() { drawPoles = Standard_True; }

  void ShowKnots() { drawKnots = Standard_True; }

  void ClearPoles() { drawPoles = Standard_False; }

  void ClearKnots() { drawKnots = Standard_False; }

  //! Returns in <Index> the index of the first pole  of the
  //! curve projected by the Display <D> at a distance lower
  //! than <Prec> from <X,Y>. If no pole  is found  index is
  //! set to 0, else index is always  greater than the input
  //! value of index.
  Standard_EXPORT void FindPole (const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real Prec, Standard_Integer& Index) const;

  Standard_EXPORT void FindKnot (const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real Prec, Standard_Integer& Index) const;

  void SetPolesColor (const Draw_Color& theColor) { polesLook = theColor; }

  void SetKnotsColor (const Draw_Color& theColor) { knotsLook = theColor; }

  void SetKnotsShape (const Draw_MarkerShape theShape) { knotsForm = theShape; }

  Draw_MarkerShape KnotsShape() const { return knotsForm; }

  Draw_Color KnotsColor() const { return knotsLook; }

  Draw_Color PolesColor() const { return polesLook; }

  //! For variable copy.
  Standard_EXPORT virtual Handle(Draw_Drawable3D) Copy() const Standard_OVERRIDE;

private:

  Standard_Boolean drawPoles;
  Standard_Boolean drawKnots;
  Draw_MarkerShape knotsForm;
  Draw_Color knotsLook;
  Standard_Integer knotsDim;
  Draw_Color polesLook;

};

#endif // _DrawTrSurf_BSplineCurve_HeaderFile
