// Created by: Peter KURNEV
// Copyright (c) 2010-2014 OPEN CASCADE SAS
// Copyright (c) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
// Copyright (c) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, CEDRAT,
//                         EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// 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 _BOPAlgo_BuilderArea_HeaderFile
#define _BOPAlgo_BuilderArea_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>

#include <BOPAlgo_Algo.hxx>
#include <NCollection_BaseAllocator.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_IndexedMapOfOrientedShape.hxx>
class IntTools_Context;


//! The root class for algorithms to build
//! faces/solids from set of edges/faces
class BOPAlgo_BuilderArea  : public BOPAlgo_Algo
{
public:

  DEFINE_STANDARD_ALLOC

  //! Sets the context for the algorithms
  void SetContext (const Handle(IntTools_Context)& theContext) {
    myContext = theContext;
  }

  //! Returns the input shapes
  const TopTools_ListOfShape& Shapes() const {
    return myShapes;
  }

  //! Sets the shapes for building areas
  void SetShapes(const TopTools_ListOfShape& theLS) {
    myShapes = theLS;
  }

  //! Returns the found loops
  const TopTools_ListOfShape& Loops() const {
    return myLoops;
  }

  //! Returns the found areas
  const TopTools_ListOfShape& Areas() const {
    return myAreas;
  }

  //! Defines the preventing of addition of internal parts into result.
  //! The default value is FALSE, i.e. the internal parts are added into result.
  void SetAvoidInternalShapes(const Standard_Boolean theAvoidInternal) {
    myAvoidInternalShapes = theAvoidInternal;
  }

  //! Returns the AvoidInternalShapes flag
  Standard_Boolean IsAvoidInternalShapes() const {
    return myAvoidInternalShapes;
  }

protected:

  Standard_EXPORT BOPAlgo_BuilderArea();
  Standard_EXPORT virtual ~BOPAlgo_BuilderArea();
  
  Standard_EXPORT BOPAlgo_BuilderArea(const Handle(NCollection_BaseAllocator)& theAllocator);
  
  virtual void PerformShapesToAvoid() = 0;
  
  virtual void PerformLoops() = 0;
  
  virtual void PerformAreas() = 0;
  
  virtual void PerformInternalShapes() = 0;


  Handle(IntTools_Context) myContext;
  TopTools_ListOfShape myShapes;
  TopTools_ListOfShape myLoops;
  TopTools_ListOfShape myLoopsInternal;
  TopTools_ListOfShape myAreas;
  TopTools_IndexedMapOfOrientedShape myShapesToAvoid;
  Standard_Boolean myAvoidInternalShapes;

private:

};

#endif // _BOPAlgo_BuilderArea_HeaderFile
