mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-21 10:13:43 +03:00
c99ad5d760
Added possibility to inherit existing attributes if the same persistent fields are used. All methods that allow controlling the data model changes or getting some callbacks may be overridden in successor. They may have same GUIDs as a base class or new ones. Special macros IMPLEMENT_DERIVED_ATTRIBUTE and IMPLEMENT_DERIVED_ATTRIBUTE_WITH_TYPE must be used instead of standard Handle macro definition IMPLEMENT_STANDARD_RTTIEXT to register new derived attributes. Using this improvement several existing attributes from TDataStd, TDataXtd and XCAFDoc packages become inherited from other base attribute-classes. XML and Bin drivers of these attributes are removed. New base attribute classes are added: TDataStd_GenericEmpty and TDataStd_GenericExtString. This improvement does not change both present formats Bin and XML documents. The obsolete Standard scheme is not changed at all.
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
// Copyright (c) 2020 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 _TDataStd_GenericExtString_HeaderFile
|
|
#define _TDataStd_GenericExtString_HeaderFile
|
|
|
|
#include <TDF_DerivedAttribute.hxx>
|
|
#include <TCollection_ExtendedString.hxx>
|
|
#include <Standard_GUID.hxx>
|
|
|
|
class Standard_GUID;
|
|
class TDF_Label;
|
|
class TDF_RelocationTable;
|
|
|
|
class TDataStd_GenericExtString;
|
|
DEFINE_STANDARD_HANDLE(TDataStd_GenericExtString, TDF_Attribute)
|
|
|
|
//! An ancestor attibute for all attributes which have TCollection_ExtendedString field.
|
|
//! If an attribute inherits this one it should not have drivers for persistence.
|
|
//! Also this attribute provides functionality to have on the same label same attributes with different IDs.
|
|
class TDataStd_GenericExtString : public TDF_Attribute
|
|
{
|
|
|
|
public:
|
|
|
|
//! Sets <S> as name. Raises if <S> is not a valid name.
|
|
Standard_EXPORT virtual void Set (const TCollection_ExtendedString& S);
|
|
|
|
//! Sets the explicit user defined GUID to the attribute.
|
|
Standard_EXPORT void SetID (const Standard_GUID& guid) Standard_OVERRIDE;
|
|
|
|
//! Returns the name contained in this name attribute.
|
|
Standard_EXPORT virtual const TCollection_ExtendedString& Get() const;
|
|
|
|
//! Returns the ID of the attribute.
|
|
Standard_EXPORT const Standard_GUID& ID() const Standard_OVERRIDE;
|
|
|
|
Standard_EXPORT void Restore (const Handle(TDF_Attribute)& with) Standard_OVERRIDE;
|
|
|
|
Standard_EXPORT void Paste (const Handle(TDF_Attribute)& into, const Handle(TDF_RelocationTable)& RT) const Standard_OVERRIDE;
|
|
|
|
//! Dumps the content of me into the stream
|
|
Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const Standard_OVERRIDE;
|
|
|
|
DEFINE_STANDARD_RTTIEXT(TDataStd_GenericExtString,TDF_Attribute)
|
|
|
|
protected:
|
|
//! A string field of the attribute, participated in persistence.
|
|
TCollection_ExtendedString myString;
|
|
//! A private GUID of the attribute.
|
|
Standard_GUID myID;
|
|
|
|
};
|
|
|
|
#endif // _TDataStd_GenericExtString_HeaderFile
|