0027104: DownCast() cannot return null for mismatched handle
[occt.git] / src / IGESAppli / IGESAppli_Protocol.hxx
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42cf5bc1 1// Created on: 1993-05-05
2// Created by: Christian CAILLET
3// Copyright (c) 1993-1999 Matra Datavision
4// Copyright (c) 1999-2014 OPEN CASCADE SAS
5//
6// This file is part of Open CASCADE Technology software library.
7//
8// This library is free software; you can redistribute it and/or modify it under
9// the terms of the GNU Lesser General Public License version 2.1 as published
10// by the Free Software Foundation, with special exception defined in the file
11// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12// distribution for complete text of the license and disclaimer of any warranty.
13//
14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
16
17#ifndef _IGESAppli_Protocol_HeaderFile
18#define _IGESAppli_Protocol_HeaderFile
19
20#include <Standard.hxx>
21#include <Standard_Type.hxx>
22
23#include <IGESData_Protocol.hxx>
24#include <Standard_Integer.hxx>
25#include <Standard_Type.hxx>
26class Interface_Protocol;
27
28
29class IGESAppli_Protocol;
30DEFINE_STANDARD_HANDLE(IGESAppli_Protocol, IGESData_Protocol)
31
32//! Description of Protocol for IGESAppli
33class IGESAppli_Protocol : public IGESData_Protocol
34{
35
36public:
37
38
39 Standard_EXPORT IGESAppli_Protocol();
40
41 //! Gives the count of direct Resource Protocol. Here, two
42 //! (Protocols from IGESDefs and IGESDraw)
43 Standard_EXPORT virtual Standard_Integer NbResources() const Standard_OVERRIDE;
44
45 //! Returns a Resource, given a rank.
46 Standard_EXPORT virtual Handle(Interface_Protocol) Resource (const Standard_Integer num) const Standard_OVERRIDE;
47
48 //! Returns a Case Number, specific of each recognized Type
49 //! This Case Number is then used in Libraries : the various
50 //! Modules attached to this class of Protocol must use them
51 //! in accordance (for a given value of TypeNumber, they must
52 //! consider the same Type as the Protocol defines)
53 Standard_EXPORT virtual Standard_Integer TypeNumber (const Handle(Standard_Type)& atype) const Standard_OVERRIDE;
54
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57
92efcf78 58 DEFINE_STANDARD_RTTIEXT(IGESAppli_Protocol,IGESData_Protocol)
42cf5bc1 59
60protected:
61
62
63
64
65private:
66
67
68
69
70};
71
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77
78#endif // _IGESAppli_Protocol_HeaderFile