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 // Created on: 1994-05-31
 // Created by: Christian CAILLET
 // Copyright (c) 1994-1999 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.
 
 #ifndef _IGESSelect_ViewSorter_HeaderFile
 #define _IGESSelect_ViewSorter_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_Type.hxx>
 
 #include <Standard_Transient.hxx>
 #include <NCollection_IndexedMap.hxx>
 #include <Standard_Integer.hxx>
 #include <NCollection_Sequence.hxx>
 #include <NCollection_HSequence.hxx>
 class IGESData_IGESModel;
 class IGESData_IGESEntity;
 class Interface_InterfaceModel;
 class Interface_Graph;
 class IFSelect_PacketList;
 
 //! Sorts IGES Entities on the views and drawings.
 //! In a first step, it splits a set of entities according the
 //! different views they are attached to.
 //! Then, packets according single views (+ drawing frames), or
 //! according drawings (which refer to the views) can be determined
 //!
 //! It is a TShared, hence it can be a workomg field of a non-
 //! mutable object (a Dispatch for instance)
 class IGESSelect_ViewSorter : public Standard_Transient
 {
 
 public:
   //! Creates a ViewSorter, empty. SetModel remains to be called
   Standard_EXPORT IGESSelect_ViewSorter();
 
   //! Sets the Model (for PacketList)
   Standard_EXPORT void SetModel(const occ::handle<IGESData_IGESModel>& model);
 
   //! Clears recorded data
   Standard_EXPORT void Clear();
 
   //! Adds an item according its type : AddEntity,AddList,AddModel
   Standard_EXPORT bool Add(const occ::handle<Standard_Transient>& ent);
 
   //! Adds an IGES entity. Records the view it is attached to.
   //! Records directly <ent> if it is a ViewKindEntity or a Drawing
   //! Returns True if added, False if already in the map
   Standard_EXPORT bool AddEntity(const occ::handle<IGESData_IGESEntity>& igesent);
 
   //! Adds a list of entities by adding each of the items
   Standard_EXPORT void AddList(
     const occ::handle<NCollection_HSequence<occ::handle<Standard_Transient>>>& list);
 
   //! Adds all the entities contained in a Model
   Standard_EXPORT void AddModel(const occ::handle<Interface_InterfaceModel>& model);
 
   //! Returns the count of already recorded
   Standard_EXPORT int NbEntities() const;
 
   //! Prepares the result to keep only sets attached to Single Views
   //! If <alsoframes> is given True, it keeps also the Drawings as
   //! specific sets, in order to get their frames.
   //! Entities attached to no single view are put in Remaining List.
   //!
   //! Result can then be read by the methods NbSets,SetItem,SetList,
   //! RemainingList(final = True)
   Standard_EXPORT void SortSingleViews(const bool alsoframes);
 
   //! Prepares the result to the sets attached to Drawings :
   //! All the single views referenced by a Drawing become bound to
   //! the set for this Drawing
   //!
   //! Entities or Views which correspond to no Drawing are put into
   //! the Remaining List.
   //!
   //! Result can then be read by the methods NbSets,SetItem,SetList,
   //! RemainingList(final = True)
   Standard_EXPORT void SortDrawings(const Interface_Graph& G);
 
   //! Returns the count of sets recorded, one per distinct item.
   //! The Remaining List is not counted.
   //! If <final> is False, the sets are attached to distinct views
   //! determined by the method Add.
   //! If <final> is True, they are the sets determined by the last
   //! call to, either SortSingleViews, or SortDrawings.
   //!
   //! Warning : Drawings directly recorded are also counted as sets, because
   //! of their Frame (which is made of Annotations)
   Standard_EXPORT int NbSets(const bool final) const;
 
   //! Returns the Item which is attached to a set of entities
   //! For <final> and definition of sets, see method NbSets.
   //! This item can be a kind of View or a Drawing
   Standard_EXPORT occ::handle<IGESData_IGESEntity> SetItem(const int num, const bool final) const;
 
   //! Returns the complete content of the determined Sets, which
   //! include Duplicated and Remaining (duplication 0) lists
   //! For <final> and definition of sets, see method NbSets.
   Standard_EXPORT occ::handle<IFSelect_PacketList> Sets(const bool final) const;
 
   DEFINE_STANDARD_RTTIEXT(IGESSelect_ViewSorter, Standard_Transient)
 
 private:
   occ::handle<IGESData_IGESModel>                         themodel;
   NCollection_IndexedMap<occ::handle<Standard_Transient>> themap;
   NCollection_IndexedMap<occ::handle<Standard_Transient>> theitems;
   NCollection_IndexedMap<occ::handle<Standard_Transient>> thefinals;
   NCollection_Sequence<int>                               theinditem;
   NCollection_Sequence<int>                               theindfin;
 };
 
 #endif // _IGESSelect_ViewSorter_HeaderFile

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