/***************************************************************************
 *   Copyright (c) 2007 Joachim Zettler <Joachim.Zettler@gmx.de>           *
 *   Adapted by Joachim Zettler to use with a WireExplorer made            *
 *   by Stephane Routelous                                                 *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  is distributed in the hope that it will be useful,      *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU Library General Public License for more details.                  *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/

#ifndef _BRepAdaptor_CompCurve2_HeaderFile
#define _BRepAdaptor_CompCurve2_HeaderFile

#ifndef _TopoDS_Wire_HeaderFile
#include <TopoDS_Wire.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _Handle_BRepAdaptor_HArray1OfCurve_HeaderFile
#include <Handle_BRepAdaptor_HArray1OfCurve.hxx>
#endif
#ifndef _Handle_TColStd_HArray1OfReal_HeaderFile
#include <Handle_TColStd_HArray1OfReal.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _Adaptor3d_Curve_HeaderFile
#include <Adaptor3d_Curve.hxx>
#endif
#ifndef _GeomAbs_Shape_HeaderFile
#include <GeomAbs_Shape.hxx>
#endif
#ifndef _Handle_Adaptor3d_HCurve_HeaderFile
#include <Handle_Adaptor3d_HCurve.hxx>
#endif
#ifndef _GeomAbs_CurveType_HeaderFile
#include <GeomAbs_CurveType.hxx>
#endif
#ifndef _Handle_Geom_BezierCurve_HeaderFile
#include <Handle_Geom_BezierCurve.hxx>
#endif
#ifndef _Handle_Geom_BSplineCurve_HeaderFile
#include <Handle_Geom_BSplineCurve.hxx>
#endif
class BRepAdaptor_HArray1OfCurve;
class TColStd_HArray1OfReal;
class Standard_NullObject;
class Standard_DomainError;
class Standard_OutOfRange;
class Standard_NoSuchObject;
class TopoDS_Wire;
class TopoDS_Edge;
class TColStd_Array1OfReal;
class Adaptor3d_HCurve;
class gp_Pnt;
class gp_Vec;
class gp_Lin;
class gp_Circ;
class gp_Elips;
class gp_Hypr;
class gp_Parab;
class Geom_BezierCurve;
class Geom_BSplineCurve;


#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif

//! The Curve from BRepAdaptor allows to use a Wire of the BRep topology
//! like a 3D curve. <br>
//!  Warning: With this class of curve, C0 and C1 continuities
//!           are not assumed. So be careful with some algorithm!
class BRepAdaptor_CompCurve2  : public Adaptor3d_Curve
{

public:

    void* operator new(size_t,void* anAddress)
    {
        return anAddress;
    }
    void* operator new(size_t size)
    {
        return Standard::Allocate(size);
    }
    void  operator delete(void *anAddress)
    {
        if (anAddress) Standard::Free((Standard_Address&)anAddress);
    }
// Methods PUBLIC
//

//! Creates an undefined Curve with no Wire loaded.
    Standard_EXPORT BRepAdaptor_CompCurve2();


    Standard_EXPORT BRepAdaptor_CompCurve2(const TopoDS_Wire& W,const Standard_Boolean KnotByCurvilinearAbcissa = Standard_False);

//! Creates a Curve to access to the geometry of edge \p W.
    Standard_EXPORT BRepAdaptor_CompCurve2(const TopoDS_Wire& W,const Standard_Boolean KnotByCurvilinearAbcissa,const Standard_Real First,const Standard_Real Last,const Standard_Real Tol);

//! Sets the wire \p W.
    Standard_EXPORT   void Initialize(const TopoDS_Wire& W,const Standard_Boolean KnotByCurvilinearAbcissa) ;

//! Sets wire \p W and trimmed parameter.
    Standard_EXPORT   void Initialize(const TopoDS_Wire& W,const Standard_Boolean KnotByCurvilinearAbcissa,const Standard_Real First,const Standard_Real Last,const Standard_Real Tol) ;

//! Set the flag Periodic. <br>
//! Warning: This method has no effect if the wire is not closed.
    Standard_EXPORT   void SetPeriodic(const Standard_Boolean Periodic) ;

//! Returns the wire.
    Standard_EXPORT  const TopoDS_Wire& Wire() const;

//! returns an edge and one parameter on them
//! corresponding to the parameter \p U.
    Standard_EXPORT   void Edge(const Standard_Real U,TopoDS_Edge& E,Standard_Real& UonE) const;


    Standard_EXPORT   Standard_Real FirstParameter() const;


    Standard_EXPORT   Standard_Real LastParameter() const;


    Standard_EXPORT   GeomAbs_Shape Continuity() const;

//! Returns the number of intervals for continuity \<S\>. <br>
//! May be one if Continuity(me) >= \<S\>
    Standard_EXPORT   Standard_Integer NbIntervals(const GeomAbs_Shape S) ;

//! Stores in \<T\> the parameters bounding the intervals of continuity \<S\>. <br>

//! The array must provide enough room to accommodate for the parameters.
//! i.e. T.Length() > NbIntervals()
    Standard_EXPORT   void Intervals(TColStd_Array1OfReal& T,const GeomAbs_Shape S) ;


    Standard_EXPORT   Standard_Boolean IsClosed() const;


    Standard_EXPORT   Standard_Boolean IsPeriodic() const;


    Standard_EXPORT   Standard_Real Period() const;

//! Computes the point of parameter \p U on the curve
    Standard_EXPORT   gp_Pnt Value(const Standard_Real U) const;

//! Computes the point of parameter \p U.
    Standard_EXPORT   void D0(const Standard_Real U,gp_Pnt& P) const;

//! Computes the point of parameter \p U on the curve with its first
//! derivative. <br>
//! Raised if the continuity of the current interval is not C1.
    Standard_EXPORT   void D1(const Standard_Real U,gp_Pnt& P,gp_Vec& V) const;


//! Returns the point \p P of parameter \p U, the first and second
//! derivatives \p V1 and \p V2. <br>
//! Raised if the continuity of the current interval is not C2.
    Standard_EXPORT   void D2(const Standard_Real U,gp_Pnt& P,gp_Vec& V1,gp_Vec& V2) const;


//! Returns the point \p P of parameter \p U, the first, the second
//! and the third derivative. <br>
//! Raised if the continuity of the current interval is not C3.
    Standard_EXPORT   void D3(const Standard_Real U,gp_Pnt& P,gp_Vec& V1,gp_Vec& V2,gp_Vec& V3) const;


//! The returned vector gives the value of the derivative for the
//! order of derivation N. <br>
//! Raised if the continuity of the current interval is not CN. <br>
//! Raised if N < 1.
    Standard_EXPORT   gp_Vec DN(const Standard_Real U,const Standard_Integer N) const;

//! returns the parametric resolution
    Standard_EXPORT   Standard_Real Resolution(const Standard_Real R3d) const;


    Standard_EXPORT   GeomAbs_CurveType GetType() const;


    Standard_EXPORT   gp_Lin Line() const;


    Standard_EXPORT   gp_Circ Circle() const;


    Standard_EXPORT   gp_Elips Ellipse() const;


    Standard_EXPORT   gp_Hypr Hyperbola() const;


    Standard_EXPORT   gp_Parab Parabola() const;


    Standard_EXPORT   Standard_Integer Degree() const;


    Standard_EXPORT   Standard_Boolean IsRational() const;


    Standard_EXPORT   Standard_Integer NbPoles() const;


    Standard_EXPORT   Standard_Integer NbKnots() const;


    Standard_EXPORT   Handle_Geom_BezierCurve Bezier() const;


    Standard_EXPORT   Handle_Geom_BSplineCurve BSpline() const;





protected:

// Methods PROTECTED
//


// Fields PROTECTED
//


private:

// Methods PRIVATE
//


    Standard_EXPORT   void Prepare(Standard_Real& W,Standard_Real& D,Standard_Integer& ind) const;


    Standard_EXPORT   void InvPrepare(const Standard_Integer ind,Standard_Real& F,Standard_Real& D) const;


// Fields PRIVATE
//
    TopoDS_Wire myWire;
    Standard_Real TFirst;
    Standard_Real TLast;
    Standard_Real PTol;
    Standard_Real myPeriod;
    Handle_BRepAdaptor_HArray1OfCurve myCurves;
    Handle_TColStd_HArray1OfReal myKnots;
    Standard_Integer CurIndex;
    Standard_Boolean Forward;
    Standard_Boolean IsbyAC;
    Standard_Boolean Periodic;


};




#endif