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b311480e | 1 | // Created on: 1997-05-12 |
2 | // Created by: Xavier BENVENISTE | |
3 | // Copyright (c) 1997-1999 Matra Datavision | |
973c2be1 | 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
b311480e | 5 | // |
973c2be1 | 6 | // This file is part of Open CASCADE Technology software library. |
b311480e | 7 | // |
d5f74e42 | 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 | |
973c2be1 | 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. | |
b311480e | 13 | // |
973c2be1 | 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. | |
7fd59977 | 16 | |
7fd59977 | 17 | #ifndef _BSplSLib_EvaluatorFunction_HeaderFile |
18 | #define _BSplSLib_EvaluatorFunction_HeaderFile | |
19 | ||
7fd59977 | 20 | #ifndef _Standard_Integer_HeaderFile |
21 | #include <Standard_Integer.hxx> | |
22 | #endif | |
23 | #ifndef _Standard_Real_HeaderFile | |
24 | #include <Standard_Real.hxx> | |
25 | #endif | |
26 | #ifndef _Standard_PrimitiveTypes_HeaderFile | |
27 | #include <Standard_PrimitiveTypes.hxx> | |
28 | #endif | |
7fd59977 | 29 | |
41194117 K |
30 | // Histroy - C function pointer converted to a virtual class |
31 | // in order to get rid of usage of static functions and static data | |
32 | class BSplSLib_EvaluatorFunction | |
33 | { | |
34 | public: | |
35 | ||
36 | //! Empty constructor | |
37 | BSplSLib_EvaluatorFunction () {} | |
38 | ||
39 | //! Destructor should be declared as virtual | |
40 | virtual ~BSplSLib_EvaluatorFunction () {} | |
41 | ||
42 | //! Function evaluation method to be defined by descendant | |
43 | virtual void Evaluate (const Standard_Integer theDerivativeRequest, | |
44 | const Standard_Real theUParameter, | |
45 | const Standard_Real theVParameter, | |
46 | Standard_Real& theResult, | |
47 | Standard_Integer& theErrorCode) const = 0; | |
48 | ||
49 | //! Shortcut for function-call style usage | |
50 | void operator () (const Standard_Integer theDerivativeRequest, | |
51 | const Standard_Real theUParameter, | |
52 | const Standard_Real theVParameter, | |
53 | Standard_Real& theResult, | |
54 | Standard_Integer& theErrorCode) const | |
55 | { | |
56 | Evaluate (theDerivativeRequest, theUParameter, theVParameter, theResult, theErrorCode); | |
57 | } | |
58 | ||
59 | private: | |
60 | ||
61 | //! Copy constructor is declared private to forbid copying | |
62 | BSplSLib_EvaluatorFunction (const BSplSLib_EvaluatorFunction&) {} | |
63 | ||
64 | //! Assignment operator is declared private to forbid copying | |
65 | void operator = (const BSplSLib_EvaluatorFunction&) {} | |
66 | }; | |
7fd59977 | 67 | |
68 | #endif |