1 // Copyright (c) 1999-2014 OPEN CASCADE SAS
3 // This file is part of Open CASCADE Technology software library.
5 // This library is free software; you can redistribute it and/or modify it under
6 // the terms of the GNU Lesser General Public License version 2.1 as published
7 // by the Free Software Foundation, with special exception defined in the file
8 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9 // distribution for complete text of the license and disclaimer of any warranty.
11 // Alternatively, this file may be used under the terms of Open CASCADE
12 // commercial license or contractual agreement.
15 #include <IFGraph_Cumulate.hxx>
16 #include <IFSelect_SelectRoots.hxx>
17 #include <Interface_EntityIterator.hxx>
18 #include <Interface_Graph.hxx>
19 #include <Interface_InterfaceModel.hxx>
20 #include <Standard_Transient.hxx>
21 #include <Standard_Type.hxx>
22 #include <TCollection_AsciiString.hxx>
24 IFSelect_SelectRoots::IFSelect_SelectRoots () { }
27 // Refait pour travailler en une fois
29 Interface_EntityIterator IFSelect_SelectRoots::RootResult
30 (const Interface_Graph& G) const
32 Interface_EntityIterator input = InputResult(G);
33 Interface_EntityIterator iter;
34 IFGraph_Cumulate GC(G);
36 // On note dans le graphe : le cumul de chaque ensemble (Entite + Shared tous
37 // niveaux). Les Roots initiales comptees une seule fois sont bonnes
38 for (input.Start(); input.More(); input.Next()) {
39 Handle(Standard_Transient) ent = input.Value();
40 GC.GetFromEntity(ent);
42 // A present, on retient, parmi les inputs, celles comptees une seule fois
43 for (input.Start(); input.More(); input.Next()) {
44 Handle(Standard_Transient) ent = input.Value();
45 if ((Standard_Boolean)(GC.NbTimes(ent) <= 1) == IsDirect()) iter.GetOneItem(ent);
50 Standard_Boolean IFSelect_SelectRoots::HasUniqueResult () const
51 { return Standard_True; }
53 Standard_Boolean IFSelect_SelectRoots::Sort
54 (const Standard_Integer , const Handle(Standard_Transient)& ,
55 const Handle(Interface_InterfaceModel)& ) const
56 { return Standard_True; }
58 TCollection_AsciiString IFSelect_SelectRoots::ExtractLabel () const
59 { return TCollection_AsciiString("Local Roots"); }