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109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
// Created on: 2004-11-23
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// Created by: Pavel TELKOV
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// Copyright (c) 2004-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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// The original implementation Copyright: (C) RINA S.p.A
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#ifndef TObj_TObject_HeaderFile
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#define TObj_TObject_HeaderFile
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#include <TObj_Common.hxx>
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#include <TObj_Object.hxx>
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#include <TDF_Attribute.hxx>
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class Standard_GUID;
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class TDF_Label;
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/**
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* Purpose: OCAF Attribute to storing objects (interfaces) of OCAF-based
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* modelers in the OCAF tree.
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* The persistency mechanism of the TObj_TObject allowes to save
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* and restore objects of various subtypes without recompilation of the schema
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*/
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class TObj_TObject : public TDF_Attribute
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{
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public:
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//! Standard methods of OCAF attribute
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//! Empty constructor
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Standard_EXPORT TObj_TObject();
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//! This method is used in implementation of ID()
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static Standard_EXPORT const Standard_GUID& GetID();
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//! Returns the ID of TObj_TObject attribute.
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Standard_EXPORT const Standard_GUID& ID() const;
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public:
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//! Method for create TObj_TObject object
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//! Creates TObj_TObject attribute on given label
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static Standard_EXPORT Handle(TObj_TObject) Set(const TDF_Label& theLabel,
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const Handle(TObj_Object)& theElem);
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public:
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//! Methods for setting and obtaining TObj_Object
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//! Sets the TObj_Object object
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Standard_EXPORT void Set(const Handle(TObj_Object)& theElem);
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//! Returns the TObj_Object object
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Standard_EXPORT Handle(TObj_Object) Get() const;
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public:
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//! Redefined OCAF abstract methods
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//! Returns an new empty TObj_TObject attribute. It is used by the
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//! copy algorithm.
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Standard_EXPORT Handle(TDF_Attribute) NewEmpty() const;
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//! Restores the backuped contents from <theWith> into this one. It is used
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//! when aborting a transaction.
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Standard_EXPORT void Restore(const Handle(TDF_Attribute)& theWith);
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//! This method is used when copying an attribute from a source structure
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//! into a target structure.
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Standard_EXPORT void Paste(const Handle(TDF_Attribute)& theInto,
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const Handle(TDF_RelocationTable)& theRT) const;
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//! Tell TObj_Object to die,
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//! i.e. (myElem->IsAlive() == false) after that
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Standard_EXPORT void BeforeForget();
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//! Tell TObj_Object to rise from the dead,
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//! i.e. (myElem->IsAlive() == true) after that
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Standard_EXPORT Standard_Boolean AfterUndo
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(const Handle(TDF_AttributeDelta)& anAttDelta,
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const Standard_Boolean forceIt);
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private:
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//! Fields
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Handle(TObj_Object) myElem; //!< The object interface stored by the attribute
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public:
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//! CASCADE RTTI
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DEFINE_STANDARD_RTTI(TObj_TObject, TDF_Attribute)
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};
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//! Define handle class for TObj_TObject
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DEFINE_STANDARD_HANDLE(TObj_TObject,TDF_Attribute)
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#endif
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#ifdef _MSC_VER
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#pragma once
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#endif
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