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123 lines
3.3 KiB
C++
123 lines
3.3 KiB
C++
// Created by: DAUTRY Philippe
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// Copyright (c) 1997-1999 Matra Datavision
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// Copyright (c) 1999-2014 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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#ifndef _TDF_Delta_HeaderFile
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#define _TDF_Delta_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Standard_Integer.hxx>
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#include <TDF_AttributeDeltaList.hxx>
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#include <TCollection_ExtendedString.hxx>
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#include <Standard_Transient.hxx>
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#include <Standard_Boolean.hxx>
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#include <TDF_LabelList.hxx>
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#include <Standard_OStream.hxx>
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class Standard_OutOfRange;
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class TDF_Data;
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class TDF_AttributeDelta;
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class TCollection_ExtendedString;
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class TDF_Delta;
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DEFINE_STANDARD_HANDLE(TDF_Delta, Standard_Transient)
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//! A set of AttributeDelta for a given transaction
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//! number and reference time number.
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//! A delta set is available at <aSourceTime>. If
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//! applied, it restores the TDF_Data in the state it
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//! was at <aTargetTime>.
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class TDF_Delta : public Standard_Transient
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{
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public:
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//! Creates a delta.
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Standard_EXPORT TDF_Delta();
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//! Returns true if there is nothing to undo.
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Standard_Boolean IsEmpty() const;
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//! Returns true if the Undo action of <me> is
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//! applicable at <aCurrentTime>.
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Standard_Boolean IsApplicable (const Standard_Integer aCurrentTime) const;
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//! Returns the field <myBeginTime>.
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Standard_Integer BeginTime() const;
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//! Returns the field <myEndTime>.
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Standard_Integer EndTime() const;
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//! Adds in <aLabelList> the labels of the attribute deltas.
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//! Caution: <aLabelList> is not cleared before use.
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Standard_EXPORT void Labels (TDF_LabelList& aLabelList) const;
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//! Returns the field <myAttDeltaList>.
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const TDF_AttributeDeltaList& AttributeDeltas() const;
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//! Returns a name associated with this delta.
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TCollection_ExtendedString Name() const;
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//! Associates a name <theName> with this delta
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void SetName (const TCollection_ExtendedString& theName);
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Standard_EXPORT void Dump (Standard_OStream& OS) const;
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friend class TDF_Data;
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DEFINE_STANDARD_RTTIEXT(TDF_Delta,Standard_Transient)
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protected:
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//! Validates <me> at <aBeginTime>. If applied, it
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//! restores the TDF_Data in the state it was at
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//! <anEndTime>. Reserved to TDF_Data.
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Standard_EXPORT void Validity (const Standard_Integer aBeginTime, const Standard_Integer anEndTime);
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//! Adds an AttributeDelta to the list. Reserved to
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//! TDF_Data.
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Standard_EXPORT void AddAttributeDelta (const Handle(TDF_AttributeDelta)& anAttributeDelta);
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private:
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Standard_EXPORT void BeforeOrAfterApply (const Standard_Boolean before) const;
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Standard_EXPORT void Apply();
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Standard_Integer myBeginTime;
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Standard_Integer myEndTime;
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TDF_AttributeDeltaList myAttDeltaList;
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TCollection_ExtendedString myName;
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};
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#include <TDF_Delta.lxx>
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#endif // _TDF_Delta_HeaderFile
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