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0001 // Created on: 1992-11-17
0002 // Created by: Christian CAILLET
0003 // Copyright (c) 1992-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016 
0017 #ifndef _IFSelect_Dispatch_HeaderFile
0018 #define _IFSelect_Dispatch_HeaderFile
0019 
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022 
0023 #include <Standard_Transient.hxx>
0024 #include <Standard_Integer.hxx>
0025 class TCollection_HAsciiString;
0026 class IFSelect_Selection;
0027 class IFSelect_SelectionIterator;
0028 class TCollection_AsciiString;
0029 class Interface_EntityIterator;
0030 class Interface_Graph;
0031 class IFGraph_SubPartsIterator;
0032 
0033 
0034 class IFSelect_Dispatch;
0035 DEFINE_STANDARD_HANDLE(IFSelect_Dispatch, Standard_Transient)
0036 
0037 //! This class allows to describe how a set of Entities has to be
0038 //! dispatched into resulting Packets : a Packet is a sub-set of
0039 //! the initial set of entities.
0040 //!
0041 //! Thus, it can generate zero, one, or more Packets according
0042 //! input set and criterium of dispatching. And it can let apart
0043 //! some entities : it is the Remainder, which can be recovered
0044 //! by a specific Selection (RemainderFromDispatch).
0045 //!
0046 //! Depending of sub-classes, a Dispatch can potentially generate
0047 //! a limited or not count of packet, and a remainder or none.
0048 //!
0049 //! The input set is read from a specified Selection, attached to
0050 //! the Dispatch : the Final Selection of the Dispatch. The input
0051 //! is the Unique Root Entities list of the Final Selection
0052 class IFSelect_Dispatch : public Standard_Transient
0053 {
0054 
0055 public:
0056 
0057   
0058   //! Sets a Root Name as an HAsciiString
0059   //! To reset it, give a Null Handle (then, a ShareOut will have
0060   //! to define the Default Root Name)
0061   Standard_EXPORT void SetRootName (const Handle(TCollection_HAsciiString)& name);
0062   
0063   //! Returns True if a specific Root Name has been set
0064   //! (else, the Default Root Name has to be used)
0065   Standard_EXPORT Standard_Boolean HasRootName() const;
0066   
0067   //! Returns the Root Name for files produced by this dispatch
0068   //! It is empty if it has not been set or if it has been reset
0069   Standard_EXPORT const Handle(TCollection_HAsciiString)& RootName() const;
0070   
0071   //! Stores (or Changes) the Final Selection for a Dispatch
0072   Standard_EXPORT void SetFinalSelection (const Handle(IFSelect_Selection)& sel);
0073   
0074   //! Returns the Final Selection of a Dispatch
0075   //! we 'd like : C++ : return const &
0076   Standard_EXPORT Handle(IFSelect_Selection) FinalSelection() const;
0077   
0078   //! Returns the complete list of source Selections (starting
0079   //! from FinalSelection)
0080   Standard_EXPORT IFSelect_SelectionIterator Selections() const;
0081   
0082   //! Returns True if a Dispatch can have a Remainder, i.e. if its
0083   //! criterium can let entities apart. It is a potential answer,
0084   //! remainder can be empty at run-time even if answer is True.
0085   //! (to attach a RemainderFromDispatch Selection is not allowed if
0086   //! answer is True).
0087   //! Default answer given here is False (can be redefined)
0088   Standard_EXPORT virtual Standard_Boolean CanHaveRemainder() const;
0089   
0090   //! Returns True if a Dispatch generates a count of Packets always
0091   //! less than or equal to a maximum value : it can be computed
0092   //! from the total count of Entities to be dispatched : <nbent>.
0093   //! If answer is False, no limited maximum is expected for account
0094   //! If answer is True, expected maximum is given in argument <max>
0095   //! Default answer given here is False (can be redefined)
0096   Standard_EXPORT virtual Standard_Boolean LimitedMax (const Standard_Integer nbent, Standard_Integer& max) const;
0097   
0098   //! Returns a text which defines the way a Dispatch produces
0099   //! packets (which will become files) from its Input
0100   Standard_EXPORT virtual TCollection_AsciiString Label() const = 0;
0101   
0102   //! Gets Unique Root Entities from the Final Selection, given an
0103   //! input Graph
0104   //! This the starting step for an Evaluation (Packets - Remainder)
0105   Standard_EXPORT Interface_EntityIterator GetEntities (const Interface_Graph& G) const;
0106 
0107   //! Returns the list of produced Packets into argument <pack>.
0108   //! Each Packet corresponds to a Part, the Entities listed are the
0109   //! Roots given by the Selection. Input is given as a Graph.
0110   //! Thus, to create a file from a packet, it suffices to take the
0111   //! entities listed in a Part of Packets (that is, a Packet)
0112   //! without worrying about Shared entities
0113   //! This method can raise an Exception if data are not coherent
0114   Standard_EXPORT virtual void Packets (const Interface_Graph& G, IFGraph_SubPartsIterator& packs) const = 0;
0115   
0116   //! Returns the list of all Input Entities (see GetEntities) which
0117   //! are put in a Packet. That is, Entities listed in GetEntities
0118   //! but not in Remainder (see below). Input is given as a Graph.
0119   Standard_EXPORT Interface_EntityIterator Packeted (const Interface_Graph& G) const;
0120   
0121   //! Returns Remainder which is a set of Entities. Can be empty.
0122   //! Default evaluation is empty (has to be redefined if
0123   //! CanHaveRemainder is redefined to return True).
0124   Standard_EXPORT virtual Interface_EntityIterator Remainder (const Interface_Graph& G) const;
0125 
0126 
0127 
0128 
0129   DEFINE_STANDARD_RTTIEXT(IFSelect_Dispatch,Standard_Transient)
0130 
0131 protected:
0132 
0133 
0134 
0135 
0136 private:
0137 
0138 
0139   Handle(TCollection_HAsciiString) thename;
0140   Handle(IFSelect_Selection) thefinal;
0141 
0142 
0143 };
0144 
0145 
0146 
0147 
0148 
0149 
0150 
0151 #endif // _IFSelect_Dispatch_HeaderFile