// Created on: 2006-08-10
// Created by: Galina KULIKOVA
// Copyright (c) 2006-2014 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 _ShapeUpgrade_RemoveInternalWires_HeaderFile
#define _ShapeUpgrade_RemoveInternalWires_HeaderFile

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

#include <TopoDS_Shape.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <TopTools_DataMapOfShapeListOfShape.hxx>
#include <TopTools_SequenceOfShape.hxx>
#include <Standard_Integer.hxx>
#include <ShapeUpgrade_Tool.hxx>
#include <ShapeExtend_Status.hxx>

// resolve name collisions with X11 headers
#ifdef Status
  #undef Status
#endif

class ShapeUpgrade_RemoveInternalWires;
DEFINE_STANDARD_HANDLE(ShapeUpgrade_RemoveInternalWires, ShapeUpgrade_Tool)

//! Removes all internal wires having area less than specified min area
class ShapeUpgrade_RemoveInternalWires : public ShapeUpgrade_Tool
{

public:

  
  //! Creates empty  constructor.
  Standard_EXPORT ShapeUpgrade_RemoveInternalWires();
  
  Standard_EXPORT ShapeUpgrade_RemoveInternalWires(const TopoDS_Shape& theShape);
  
  //! Initialize by a Shape.
  Standard_EXPORT void Init (const TopoDS_Shape& theShape);
  
  //! Removes all internal wires having area less than area specified as minimal allowed area
  Standard_EXPORT Standard_Boolean Perform();
  
  //! If specified sequence of shape contains -
  //! 1.wires then these wires will be removed if they have area less than allowed min area.
  //! 2.faces than internal wires from these faces will be removed if they have area less than allowed min area.
  Standard_EXPORT Standard_Boolean Perform (const TopTools_SequenceOfShape& theSeqShapes);
  
  //! Get result shape
    TopoDS_Shape GetResult() const;
  
  //! Set min area allowed for holes( all holes having area less than mi area will be removed)
    Standard_Real& MinArea();
  
  //! Set mode which manage removing faces which have outer wires consisting only from edges
  //! belonginig to removed internal wires.
  //! By default it is equal to true.
    Standard_Boolean& RemoveFaceMode();
  
  //! Returns sequence of removed faces.
    const TopTools_SequenceOfShape& RemovedFaces() const;
  
  //! Returns sequence of removed faces.
    const TopTools_SequenceOfShape& RemovedWires() const;
  
  //! Queries status of last call to Perform()
  //! : OK - nothing was done
  //! :DONE1 - internal wires were removed
  //! :DONE2 - small faces were removed.
  //! :FAIL1 - initial shape is not specified
  //! :FAIL2 - specified sub-shape is not belonged to inotial shape.
    Standard_Boolean Status (const ShapeExtend_Status theStatus) const;




  DEFINE_STANDARD_RTTIEXT(ShapeUpgrade_RemoveInternalWires,ShapeUpgrade_Tool)

protected:

  
  //! Clear all sequences and temporary map;
  Standard_EXPORT void Clear();

  Standard_Integer myStatus;


private:

  
  //! Removes internal wires having area of contour less than specified MinArea
  Standard_EXPORT void removeSmallWire (const TopoDS_Shape& theFace, const TopoDS_Shape& theWire);
  
  //! Removes faces having outer wire consisting
  //! from removed edges(belonging small internal wires)
  Standard_EXPORT void removeSmallFaces();

  TopoDS_Shape myShape;
  TopoDS_Shape myResult;
  Standard_Real myMinArea;
  Standard_Boolean myRemoveFacesMode;
  TopTools_IndexedDataMapOfShapeListOfShape myEdgeFaces;
  TopTools_DataMapOfShapeListOfShape myRemoveEdges;
  TopTools_SequenceOfShape myRemovedFaces;
  TopTools_SequenceOfShape myRemoveWires;


};


#include <ShapeUpgrade_RemoveInternalWires.lxx>





#endif // _ShapeUpgrade_RemoveInternalWires_HeaderFile
