include/opencascade/StepBasic_Unit.hxx

0001 // Created on: 1999-09-08
0002 // Created by: Andrey BETENEV
0003 // Copyright (c) 1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _StepBasic_Unit_HeaderFile
0018 #define _StepBasic_Unit_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <StepData_SelectType.hxx>
0025 #include <Standard_Integer.hxx>
0026 class Standard_Transient;
0027 class StepBasic_NamedUnit;
0028 class StepBasic_DerivedUnit;
0029
0030 //! Implements a select type unit (NamedUnit or DerivedUnit)
0031 class StepBasic_Unit : public StepData_SelectType
0032 {
0033 public:
0034   DEFINE_STANDARD_ALLOC
0035
0036   //! Creates empty object
0037   Standard_EXPORT StepBasic_Unit();
0038
0039   //! Recognizes a type of Unit Entity
0040   //! 1 -> NamedUnit
0041   //! 2 -> DerivedUnit
0042   Standard_EXPORT Standard_Integer CaseNum(const Handle(Standard_Transient)& ent) const;
0043
0044   //! returns Value as a NamedUnit (Null if another type)
0045   Standard_EXPORT Handle(StepBasic_NamedUnit) NamedUnit() const;
0046
0047   //! returns Value as a DerivedUnit (Null if another type)
0048   Standard_EXPORT Handle(StepBasic_DerivedUnit) DerivedUnit() const;
0049
0050 protected:
0051 private:
0052 };
0053
0054 #endif // _StepBasic_Unit_HeaderFile