include/opencascade/StepData_Described.hxx

0001 // Created on: 1997-05-09
0002 // Created by: Christian CAILLET
0003 // Copyright (c) 1997-1999 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 _StepData_Described_HeaderFile
0018 #define _StepData_Described_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <Standard_Transient.hxx>
0024 class StepData_EDescr;
0025 class StepData_Simple;
0026 class StepData_Field;
0027 class Interface_Check;
0028 class Interface_EntityIterator;
0029
0030 //! General frame to describe entities with Description (Simple or
0031 //! Complex)
0032 class StepData_Described : public Standard_Transient
0033 {
0034
0035 public:
0036   //! Returns the Description used to define this entity
0037   Standard_EXPORT occ::handle<StepData_EDescr> Description() const;
0038
0039   //! Tells if a described entity is complex
0040   Standard_EXPORT virtual bool IsComplex() const = 0;
0041
0042   //! Tells if a step type is matched by <me>
0043   //! For a Simple Entity : own type or super type
0044   //! For a Complex Entity : one of the members
0045   Standard_EXPORT virtual bool Matches(const char* const steptype) const = 0;
0046
0047   //! Returns a Simple Entity which matches with a Type in <me> :
0048   //! For a Simple Entity : me if it matches, else a null handle
0049   //! For a Complex Entity : the member which matches, else null
0050   Standard_EXPORT virtual occ::handle<StepData_Simple> As(const char* const steptype) const = 0;
0051
0052   //! Tells if a Field brings a given name
0053   Standard_EXPORT virtual bool HasField(const char* const name) const = 0;
0054
0055   //! Returns a Field from its name; read-only
0056   Standard_EXPORT virtual const StepData_Field& Field(const char* const name) const = 0;
0057
0058   //! Returns a Field from its name; read or write
0059   Standard_EXPORT virtual StepData_Field& CField(const char* const name) = 0;
0060
0061   //! Fills a Check by using its Description
0062   Standard_EXPORT virtual void Check(occ::handle<Interface_Check>& ach) const = 0;
0063
0064   //! Fills an EntityIterator with entities shared by <me>
0065   Standard_EXPORT virtual void Shared(Interface_EntityIterator& list) const = 0;
0066
0067   DEFINE_STANDARD_RTTIEXT(StepData_Described, Standard_Transient)
0068
0069 protected:
0070   //! Initializes a Described Entity from a Description
0071   //! (i.e. puts it in a field ...)
0072   Standard_EXPORT StepData_Described(const occ::handle<StepData_EDescr>& descr);
0073
0074 private:
0075   occ::handle<StepData_EDescr> thedescr;
0076 };
0077
0078 #endif // _StepData_Described_HeaderFile