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 // Created on: 1996-02-15
 // Created by: Christian CAILLET
 // Copyright (c) 1996-1999 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 _MoniTool_Stat_HeaderFile
 #define _MoniTool_Stat_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_Handle.hxx>
 
 #include <Standard_Integer.hxx>
 #include <NCollection_Array1.hxx>
 #include <NCollection_HArray1.hxx>
 #include <Standard_Real.hxx>
 class TCollection_HAsciiString;
 
 //! This class manages Statistics to be queried asynchronously.
 //!
 //! It is organized as a stack of counters, identified by their
 //! levels, from one to ... . Each one has a total account of
 //! items to be counted, a count of already passed items, plus a
 //! count of "current items". The counters of higher level play on
 //! these current items.
 //! For instance, if a counter has been opened for 100 items, 40
 //! already passed, 20 current, its own percent is 40, but there
 //! is the contribution of higher level counters, rated for 20 %
 //! of this counter.
 //!
 //! Hence, a counter is opened, items are added. Also items can be
 //! add for sub-counter (of higher level), they will be added
 //! definitively when the sub-counter will be closed. When the
 //! count has ended, this counter is closed, the counter of
 //! lower level cumulates it and goes on. As follows :
 //!
 //! Way of use :
 //! Open(nbitems);
 //! Add(..)  :  direct adding
 //! Add(..)
 //! AddSub (nsub)  :  for sub-counter
 //! Open (nbsubs)  :  nbsubs for this sub-counter
 //! Add (..)
 //! Close        : the sub-counter
 //! AddEnd()
 //! etc...
 //! Close          : the starting counter
 //!
 //! This means that a counter can be opened in a Stat, regardless
 //! to the already opened ones :: this will be cumulated
 //!
 //! A Current Stat is available, but it is possible to have others
 class MoniTool_Stat
 {
 public:
   DEFINE_STANDARD_ALLOC
 
   //! Creates a Stat form. At start, one default phase is defined,
   //! with one default step. Then, it suffises to start with a
   //! count of items (and cycles if several) then record items,
   //! to have a queryable report.
   Standard_EXPORT MoniTool_Stat(const char* const title = "");
 
   //! used when starting
   Standard_EXPORT MoniTool_Stat(const MoniTool_Stat& other);
 
   Standard_EXPORT static MoniTool_Stat& Current();
 
   //! Opens a new counter with a starting count of items
   Standard_EXPORT int Open(const int nb = 100);
 
   //! Adds more items to be counted by Add... on current level
   Standard_EXPORT void OpenMore(const int id, const int nb);
 
   //! Directly adds items
   Standard_EXPORT void Add(const int nb = 1);
 
   //! Declares a count of items to be added later. If a sub-counter
   //! is opened, its percentage multiplies this sub-count to compute
   //! the percent of current level
   Standard_EXPORT void AddSub(const int nb = 1);
 
   //! Ends the AddSub and cumulates the sub-count to current level
   Standard_EXPORT void AddEnd();
 
   Standard_EXPORT void Close(const int id);
 
   Standard_EXPORT int Level() const;
 
   Standard_EXPORT double Percent(const int fromlev = 0) const;
 
 private:
   occ::handle<TCollection_HAsciiString> thetit;
   int                                   thelev;
   occ::handle<NCollection_HArray1<int>> thetot;
   occ::handle<NCollection_HArray1<int>> thedone;
   occ::handle<NCollection_HArray1<int>> thecurr;
 };
 
 #endif // _MoniTool_Stat_HeaderFile

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