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 // Created on: 1994-05-31
 // Created by: Modelistation
 // 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_CounterOfLevelNumber_HeaderFile
 #define _IGESSelect_CounterOfLevelNumber_HeaderFile
 
 #include <TColStd_HArray1OfInteger.hxx>
 #include <IFSelect_SignCounter.hxx>
 #include <TColStd_HSequenceOfInteger.hxx>
 
 class Interface_InterfaceModel;
 class TCollection_HAsciiString;
 
 class IGESSelect_CounterOfLevelNumber;
 DEFINE_STANDARD_HANDLE(IGESSelect_CounterOfLevelNumber, IFSelect_SignCounter)
 
 //! This class gives information about Level Number. It counts
 //! entities according level number, considering also the
 //! multiple level (see the class LevelList) for which an entity
 //! is attached to each of the listed levels.
 //!
 //! Data are available, as level number, or as their alphanumeric
 //! counterparts ("LEVEL nnnnnnn", " NO LEVEL", " LEVEL LIST")
 class IGESSelect_CounterOfLevelNumber : public IFSelect_SignCounter
 {
 
 public:
   //! Creates a CounterOfLevelNumber, clear, ready to work
   //! <withmap> and <withlist> are transmitted to SignCounter
   Standard_EXPORT IGESSelect_CounterOfLevelNumber(const Standard_Boolean withmap  = Standard_True,
                                                   const Standard_Boolean withlist = Standard_False);
 
   //! Resets already memorized information : also numeric data
   Standard_EXPORT virtual void Clear() Standard_OVERRIDE;
 
   //! Adds an entity by considering its lrvrl number(s)
   //! A level is added both in numeric and alphanumeric form,
   //! i.e. LevelList gives "LEVEL LIST", others (no level or
   //! positive level) displays level number on 7 digits (C : %7d)
   //! Remark : an entity attached to a Level List is added for
   //! " LEVEL LIST", and for each of its constituent levels
   Standard_EXPORT virtual void AddSign(const Handle(Standard_Transient)&       ent,
                                        const Handle(Interface_InterfaceModel)& model)
     Standard_OVERRIDE;
 
   //! The internal action to record a new level number, positive,
   //! null (no level) or negative (level list)
   Standard_EXPORT void AddLevel(const Handle(Standard_Transient)& ent,
                                 const Standard_Integer            level);
 
   //! Returns the highest value found for a level number
   Standard_EXPORT Standard_Integer HighestLevel() const;
 
   //! Returns the number of times a level is used,
   //! 0 if it has not been recorded at all
   //! <level> = 0 counts entities attached to no level
   //! <level> < 0 counts entities attached to a LevelList
   Standard_EXPORT Standard_Integer NbTimesLevel(const Standard_Integer level) const;
 
   //! Returns the ordered list of used positive Level numbers
   Standard_EXPORT Handle(TColStd_HSequenceOfInteger) Levels() const;
 
   //! Determines and returns the value of the signature for an
   //! entity as an HAsciiString. Redefined, gives the same result
   //! as AddSign, see this method ("LEVEL LIST" or "nnnnnnn")
   Standard_EXPORT virtual Handle(TCollection_HAsciiString) Sign(
     const Handle(Standard_Transient)&       ent,
     const Handle(Interface_InterfaceModel)& model) const Standard_OVERRIDE;
 
   //! Prints the counts of items (not the list) then the Highest
   //! Level Number recorded
   Standard_EXPORT virtual void PrintCount(Standard_OStream& S) const Standard_OVERRIDE;
 
   DEFINE_STANDARD_RTTIEXT(IGESSelect_CounterOfLevelNumber, IFSelect_SignCounter)
 
 protected:
 private:
   Standard_Integer                 thehigh;
   Standard_Integer                 thenblists;
   Handle(TColStd_HArray1OfInteger) thelevels;
 };
 
 #endif // _IGESSelect_CounterOfLevelNumber_HeaderFile

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