// Created on: 1992-09-23 // Created by: Christian CAILLET // Copyright (c) 1992-1999 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 _IFGraph_ExternalSources_HeaderFile #define _IFGraph_ExternalSources_HeaderFile #include #include #include #include #include #include class Interface_Graph; class Standard_Transient; class Interface_EntityIterator; //! this class gives entities which are Source of entities of //! a sub-part, but are not contained by this sub-part class IFGraph_ExternalSources : public Interface_GraphContent { public: DEFINE_STANDARD_ALLOC //! creates empty ExternalSources, ready to work Standard_EXPORT IFGraph_ExternalSources(const Interface_Graph& agraph); //! adds an entity and its shared ones to the list Standard_EXPORT void GetFromEntity (const Handle(Standard_Transient)& ent); //! adds a list of entities (as an iterator) with shared ones Standard_EXPORT void GetFromIter (const Interface_EntityIterator& iter); //! Allows to restart on a new data set Standard_EXPORT void ResetData(); //! Evaluates external sources of a set of entities Standard_EXPORT virtual void Evaluate() Standard_OVERRIDE; //! Returns True if no External Source are found //! It means that we have a "root" set //! (performs an Evaluation as necessary) Standard_EXPORT Standard_Boolean IsEmpty(); protected: private: Interface_Graph thegraph; }; #endif // _IFGraph_ExternalSources_HeaderFile