// 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_BSplineSurface_HeaderFile
#define _DrawTrSurf_BSplineSurface_HeaderFile

#include <Standard.hxx>
#include <Standard_Type.hxx>

#include <Standard_Boolean.hxx>
#include <Draw_MarkerShape.hxx>
#include <Draw_Color.hxx>
#include <Standard_Integer.hxx>
#include <DrawTrSurf_Surface.hxx>
#include <Standard_Real.hxx>
class Geom_BSplineSurface;
class Draw_Color;
class Draw_Display;
class Draw_Drawable3D;


class DrawTrSurf_BSplineSurface;
DEFINE_STANDARD_HANDLE(DrawTrSurf_BSplineSurface, DrawTrSurf_Surface)


//! This class defines a drawable BSplineSurface.
//! With this class you can draw the control points and the knots
//! of the surface.
//! You can use the general class Surface from DrawTrSurf too,
//! if you just want to sea boundaries and isoparametric curves.
class DrawTrSurf_BSplineSurface : public DrawTrSurf_Surface
{

public:

  
  //! default drawing mode.
  //! The isoparametric curves corresponding to the knots values are
  //! drawn.
  //! The control points and the knots points are drawn.
  //! The boundaries are yellow, the isoparametric curves are blues.
  //! For the discretisation 50 points are computed in each parametric
  //! direction.
  Standard_EXPORT DrawTrSurf_BSplineSurface(const Handle(Geom_BSplineSurface)& S);
  

  //! The isoparametric curves corresponding to the knots values are
  //! drawn.
  Standard_EXPORT DrawTrSurf_BSplineSurface(const Handle(Geom_BSplineSurface)& S, const Draw_Color& BoundsColor, const Draw_Color& IsosColor, 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);
  
  //! Parametric equidistant iso curves are drawn.
  Standard_EXPORT DrawTrSurf_BSplineSurface(const Handle(Geom_BSplineSurface)& S, const Standard_Integer NbUIsos, const Standard_Integer NbVIsos, const Draw_Color& BoundsColor, const Draw_Color& IsosColor, 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 void DrawOn (Draw_Display& dis) const Standard_OVERRIDE;
  
  Standard_EXPORT void ShowPoles();
  
  Standard_EXPORT void ShowKnots();
  
  //! change the number of isoparametric curves to be drawn.
  Standard_EXPORT virtual void ShowIsos (const Standard_Integer Nu, const Standard_Integer Nv) Standard_OVERRIDE;
  
  //! change the number of isoparametric curves to be drawn.
  Standard_EXPORT void ShowKnotsIsos();
  
  //! rub out all the isoparametric curves.
  Standard_EXPORT virtual void ClearIsos() Standard_OVERRIDE;
  
  Standard_EXPORT void ClearPoles();
  
  Standard_EXPORT void ClearKnots();
  
  Standard_EXPORT void FindPole (const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real Prec, Standard_Integer& UIndex, Standard_Integer& VIndex) const;
  
  Standard_EXPORT void FindUKnot (const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real Prec, Standard_Integer& UIndex) const;
  
  Standard_EXPORT void FindVKnot (const Standard_Real X, const Standard_Real Y, const Draw_Display& D, const Standard_Real Prec, Standard_Integer& VIndex) const;
  
    void SetPolesColor (const Draw_Color& aColor);
  
    void SetKnotsColor (const Draw_Color& aColor);
  
    void SetKnotsShape (const Draw_MarkerShape Shape);
  
    Draw_MarkerShape KnotsShape() const;
  
    Draw_Color KnotsColor() const;
  
    Draw_Color PolesColor() const;
  
  //! For variable copy.
  Standard_EXPORT virtual Handle(Draw_Drawable3D) Copy() const Standard_OVERRIDE;




  DEFINE_STANDARD_RTTIEXT(DrawTrSurf_BSplineSurface,DrawTrSurf_Surface)

protected:




private:


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


};


#include <DrawTrSurf_BSplineSurface.lxx>





#endif // _DrawTrSurf_BSplineSurface_HeaderFile
