1 // Created on: 2004-11-23 2 // Created by: Pavel TELKOV 3 // Copyright (c) 2004-2014 OPEN CASCADE SAS 4 // 5 // This file is part of Open CASCADE Technology software library. 6 // 7 // This library is free software; you can redistribute it and/or modify it under 8 // the terms of the GNU Lesser General Public License version 2.1 as published 9 // by the Free Software Foundation, with special exception defined in the file 10 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 11 // distribution for complete text of the license and disclaimer of any warranty. 12 // 13 // Alternatively, this file may be used under the terms of Open CASCADE 14 // commercial license or contractual agreement. 15 16 // The original implementation Copyright: (C) RINA S.p.A 17 18 #ifndef TObj_TObject_HeaderFile 19 #define TObj_TObject_HeaderFile 20 21 #include <TObj_Common.hxx> 22 #include <TObj_Object.hxx> 23 24 #include <TDF_Attribute.hxx> 25 26 class Standard_GUID; 27 class TDF_Label; 28 29 /** 30 * Purpose: OCAF Attribute to storing objects (interfaces) of OCAF-based 31 * modelers in the OCAF tree. 32 * The persistency mechanism of the TObj_TObject allowes to save 33 * and restore objects of various subtypes without recompilation of the schema 34 */ 35 36 class TObj_TObject : public TDF_Attribute 37 { 38 public: 39 //! Standard methods of OCAF attribute 40 41 //! Empty constructor 42 Standard_EXPORT TObj_TObject(); 43 44 //! This method is used in implementation of ID() 45 static Standard_EXPORT const Standard_GUID& GetID(); 46 47 //! Returns the ID of TObj_TObject attribute. 48 Standard_EXPORT const Standard_GUID& ID() const Standard_OVERRIDE; 49 50 public: 51 //! Method for create TObj_TObject object 52 53 //! Creates TObj_TObject attribute on given label 54 static Standard_EXPORT Handle(TObj_TObject) Set(const TDF_Label& theLabel, 55 const Handle(TObj_Object)& theElem); 56 57 public: 58 //! Methods for setting and obtaining TObj_Object 59 60 //! Sets the TObj_Object object 61 Standard_EXPORT void Set(const Handle(TObj_Object)& theElem); 62 63 //! Returns the TObj_Object object 64 Standard_EXPORT Handle(TObj_Object) Get() const; 65 66 public: 67 //! Redefined OCAF abstract methods 68 69 //! Returns an new empty TObj_TObject attribute. It is used by the 70 //! copy algorithm. 71 Standard_EXPORT Handle(TDF_Attribute) NewEmpty() const Standard_OVERRIDE; 72 73 //! Restores the backuped contents from <theWith> into this one. It is used 74 //! when aborting a transaction. 75 Standard_EXPORT void Restore(const Handle(TDF_Attribute)& theWith) Standard_OVERRIDE; 76 77 //! This method is used when copying an attribute from a source structure 78 //! into a target structure. 79 Standard_EXPORT void Paste(const Handle(TDF_Attribute)& theInto, 80 const Handle(TDF_RelocationTable)& theRT) const Standard_OVERRIDE; 81 82 //! Tell TObj_Object to die, 83 //! i.e. (myElem->IsAlive() == false) after that 84 Standard_EXPORT void BeforeForget() Standard_OVERRIDE; 85 86 //! Tell TObj_Object to rise from the dead, 87 //! i.e. (myElem->IsAlive() == true) after that 88 Standard_EXPORT Standard_Boolean AfterUndo 89 (const Handle(TDF_AttributeDelta)& anAttDelta, 90 const Standard_Boolean forceIt) Standard_OVERRIDE; 91 92 private: 93 //! Fields 94 Handle(TObj_Object) myElem; //!< The object interface stored by the attribute 95 96 public: 97 //! CASCADE RTTI 98 DEFINE_STANDARD_RTTIEXT(TObj_TObject,TDF_Attribute) 99 }; 100 101 //! Define handle class for TObj_TObject 102 DEFINE_STANDARD_HANDLE(TObj_TObject,TDF_Attribute) 103 104 #endif 105 106 #ifdef _MSC_VER 107 #pragma once 108 #endif 109