1 // Created on: 1992-09-23
2 // Created by: Christian CAILLET
3 // Copyright (c) 1992-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _IFGraph_ExternalSources_HeaderFile
18 #define _IFGraph_ExternalSources_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Interface_Graph.hxx>
25 #include <Interface_GraphContent.hxx>
26 #include <Standard_Boolean.hxx>
27 class Interface_Graph;
28 class Standard_Transient;
29 class Interface_EntityIterator;
32 //! this class gives entities which are Source of entities of
33 //! a sub-part, but are not contained by this sub-part
34 class IFGraph_ExternalSources : public Interface_GraphContent
41 //! creates empty ExternalSources, ready to work
42 Standard_EXPORT IFGraph_ExternalSources(const Interface_Graph& agraph);
44 //! adds an entity and its shared ones to the list
45 Standard_EXPORT void GetFromEntity (const Handle(Standard_Transient)& ent);
47 //! adds a list of entities (as an iterator) with shared ones
48 Standard_EXPORT void GetFromIter (const Interface_EntityIterator& iter);
50 //! Allows to restart on a new data set
51 Standard_EXPORT void ResetData();
53 //! Evaluates external sources of a set of entities
54 Standard_EXPORT virtual void Evaluate() Standard_OVERRIDE;
56 //! Returns True if no External Source are found
57 //! It means that we have a "root" set
58 //! (performs an Evaluation as necessary)
59 Standard_EXPORT Standard_Boolean IsEmpty();
74 Interface_Graph thegraph;
85 #endif // _IFGraph_ExternalSources_HeaderFile