OCCT

// Created on: 1995-09-01
// Created by: Bruno DUMORTIER
// 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 <BRepFill_OffsetAncestors.hxx>
#include <BRepFill_OffsetWire.hxx>
#include <StdFail_NotDone.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Shape.hxx>

//=================================================================================================

BRepFill_OffsetAncestors::BRepFill_OffsetAncestors()
    : myIsPerform(false)
{
}

//=================================================================================================

BRepFill_OffsetAncestors::BRepFill_OffsetAncestors(BRepFill_OffsetWire& Paral)
{
  Perform(Paral);
}

//=================================================================================================

void BRepFill_OffsetAncestors::Perform(BRepFill_OffsetWire& Paral)
{
  TopoDS_Face Spine = Paral.Spine();

  TopExp_Explorer                          Exp;
  NCollection_List<TopoDS_Shape>::Iterator it;

  // on itere sur les edges.
  for (Exp.Init(Spine, TopAbs_EDGE); Exp.More(); Exp.Next())
  {
    for (it.Initialize(Paral.GeneratedShapes(Exp.Current())); it.More(); it.Next())
    {
      myMap.Bind(it.Value(), Exp.Current());
    }
  }

  // on itere sur les vertex.
  for (Exp.Init(Spine, TopAbs_VERTEX); Exp.More(); Exp.Next())
  {
    for (it.Initialize(Paral.GeneratedShapes(Exp.Current())); it.More(); it.Next())
    {
      myMap.Bind(it.Value(), Exp.Current());
    }
  }

  myIsPerform = true;
}

//=================================================================================================

bool BRepFill_OffsetAncestors::IsDone() const
{
  return myIsPerform;
}

//=================================================================================================

bool BRepFill_OffsetAncestors::HasAncestor(const TopoDS_Edge& S1) const
{
  return myMap.IsBound(S1);
}

//=======================================================================
// function : TopoDS_Shape&
// purpose  :
//=======================================================================

const TopoDS_Shape& BRepFill_OffsetAncestors::Ancestor(const TopoDS_Edge& S1) const
{
  StdFail_NotDone_Raise_if(
    !myIsPerform,
    "BRepFill_OffsetAncestors::Ancestor() - Perform() should be called before accessing results");
  return myMap(S1);
}