// Copyright (c) 1995-1999 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.

#include "Standard_DomainError.hxx"

inline IntRes2d_IntersectionSegment::IntRes2d_IntersectionSegment(
  const IntRes2d_IntersectionPoint& P1,
  const IntRes2d_IntersectionPoint& P2,
  const bool                        Oppos,
  const bool                        ReverseFlag)
    :

      oppos(Oppos),
      first(true),
      last(true),
      ptfirst(P1),
      ptlast(P2)
{
  if (ReverseFlag)
  {
    if (Oppos)
    {
      ptfirst = P2;
      ptlast  = P1;
    }
  }
}

inline IntRes2d_IntersectionSegment::IntRes2d_IntersectionSegment(
  const IntRes2d_IntersectionPoint& P,
  const bool                        First,
  const bool                        Oppos,
  const bool                        ReverseFlag)
    :

      oppos(Oppos)

{
  if (ReverseFlag && Oppos)
  {
    if (First)
    {
      first  = false;
      last   = true;
      ptlast = P;
    }
    else
    {
      first   = true;
      last    = false;
      ptfirst = P;
    }
  }
  else
  {
    if (First)
    {
      first   = true;
      last    = false;
      ptfirst = P;
    }
    else
    {
      first  = false;
      last   = true;
      ptlast = P;
    }
  }
}

inline IntRes2d_IntersectionSegment::IntRes2d_IntersectionSegment(const bool Oppos)
    : oppos(Oppos),
      first(false),
      last(false)

{
}

inline bool IntRes2d_IntersectionSegment::IsOpposite() const
{
  return oppos;
}

inline bool IntRes2d_IntersectionSegment::HasFirstPoint() const
{
  return first;
}

inline bool IntRes2d_IntersectionSegment::HasLastPoint() const
{
  return last;
}

inline const IntRes2d_IntersectionPoint& IntRes2d_IntersectionSegment::FirstPoint() const
{

  if (!first)
  {
    throw Standard_DomainError();
  }
  return ptfirst;
}

inline const IntRes2d_IntersectionPoint& IntRes2d_IntersectionSegment::LastPoint() const
{

  if (!last)
  {
    throw Standard_DomainError();
  }
  return ptlast;
}