0027067: Avoid use of virtual methods for implementation of destructors in legacy...
[occt.git] / src / Units / Units_ShiftedToken.hxx
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42cf5bc1 1// Created on: 1992-11-05
2// Created by: Gilles DEBARBOUILLE
3// Copyright (c) 1992-1999 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 _Units_ShiftedToken_HeaderFile
18#define _Units_ShiftedToken_HeaderFile
19
20#include <Standard.hxx>
21#include <Standard_Type.hxx>
22
23#include <Standard_Real.hxx>
24#include <Units_Token.hxx>
25#include <Standard_CString.hxx>
26#include <Standard_Integer.hxx>
27class Units_Dimensions;
28class Units_Token;
29
30
31class Units_ShiftedToken;
32DEFINE_STANDARD_HANDLE(Units_ShiftedToken, Units_Token)
33
34//! The ShiftedToken class inherits from Token and
35//! describes tokens which have a gap in addition of
36//! the multiplicative factor. This kind of token
37//! allows the description of linear functions which
38//! do not pass through the origin, of the form :
39//!
40//! y = ax +b
41//!
42//! where <x> and <y> are the unknown variables, <a>
43//! the mutiplicative factor, and <b> the gap relative
44//! to the ordinate axis.
45//!
46//! An example is the tranlation between the Celsius
47//! and Fahrenheit degree of temperature.
48class Units_ShiftedToken : public Units_Token
49{
50
51public:
52
53
54 //! Creates and returns a shifted token. <aword> is a
55 //! string containing the available word, <amean> gives
56 //! the signification of the token, <avalue> is the
57 //! numeric value of the dimension, <amove> is the gap,
58 //! and <adimensions> is the dimension of the given word
59 //! <aword>.
60 Standard_EXPORT Units_ShiftedToken(const Standard_CString aword, const Standard_CString amean, const Standard_Real avalue, const Standard_Real amove, const Handle(Units_Dimensions)& adimensions);
61
62 //! Creates and returns a token, which is a ShiftedToken.
63 Standard_EXPORT virtual Handle(Units_Token) Creates() const Standard_OVERRIDE;
64
65 //! Returns the gap <themove>
66 Standard_EXPORT Standard_Real Move() const;
67
68 //! This virtual method is called by the Measurement
69 //! methods, to compute the measurement during a
70 //! conversion.
71 Standard_EXPORT virtual Standard_Real Multiplied (const Standard_Real avalue) const Standard_OVERRIDE;
72
73 //! This virtual method is called by the Measurement
74 //! methods, to compute the measurement during a
75 //! conversion.
76 Standard_EXPORT virtual Standard_Real Divided (const Standard_Real avalue) const Standard_OVERRIDE;
77
42cf5bc1 78 Standard_EXPORT virtual void Dump (const Standard_Integer ashift, const Standard_Integer alevel) const Standard_OVERRIDE;
79
80
81
92efcf78 82 DEFINE_STANDARD_RTTIEXT(Units_ShiftedToken,Units_Token)
42cf5bc1 83
84protected:
85
86
87
88
89private:
90
91
92 Standard_Real themove;
93
94
95};
96
97
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100
101
102
103#endif // _Units_ShiftedToken_HeaderFile