1 // Created on: 1996-09-26
2 // Created by: Arnaud BOUZY
3 // Copyright (c) 1996-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _Resource_Unicode_HeaderFile
18 #define _Resource_Unicode_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_CString.hxx>
25 #include <Standard_Boolean.hxx>
26 #include <Standard_PCharacter.hxx>
27 #include <Standard_Integer.hxx>
28 #include <Resource_FormatType.hxx>
29 class TCollection_ExtendedString;
32 //! This class provides functions used to convert a non-ASCII C string
33 //! given in ANSI, EUC, GB or SJIS format, to a
34 //! Unicode string of extended characters, and vice versa.
35 class Resource_Unicode
42 //! Converts non-ASCII CString <fromstr> in SJIS format
43 //! to Unicode ExtendedString <tostr>.
44 Standard_EXPORT static void ConvertSJISToUnicode (const Standard_CString fromstr, TCollection_ExtendedString& tostr);
46 //! Converts non-ASCII CString <fromstr> in EUC format
47 //! to Unicode ExtendedString <tostr>.
48 Standard_EXPORT static void ConvertEUCToUnicode (const Standard_CString fromstr, TCollection_ExtendedString& tostr);
50 //! Converts non-ASCII CString <fromstr> in GB format
51 //! to Unicode ExtendedString <tostr>.
52 Standard_EXPORT static void ConvertGBToUnicode (const Standard_CString fromstr, TCollection_ExtendedString& tostr);
54 //! Converts non-ASCII CString <fromstr> in GBK format
55 //! to Unicode ExtendedString <tostr>.
56 Standard_EXPORT static Standard_Boolean ConvertGBKToUnicode (const Standard_CString fromstr, TCollection_ExtendedString& tostr);
58 //! Converts non-ASCII CString <fromstr> in Big5 format
59 //! to Unicode ExtendedString <tostr>.
60 Standard_EXPORT static Standard_Boolean ConvertBig5ToUnicode (const Standard_CString fromstr, TCollection_ExtendedString& tostr);
62 //! Converts Unicode ExtendedString <fromstr> to non-ASCII
63 //! CString <tostr> in SJIS format, limited to <maxsize>
64 //! characters. To translate the whole <fromstr>, use more
65 //! than twice the length of <fromstr>. Returns true if
66 //! <maxsize> has not been reached before end of conversion.
67 Standard_EXPORT static Standard_Boolean ConvertUnicodeToSJIS (const TCollection_ExtendedString& fromstr, Standard_PCharacter& tostr, const Standard_Integer maxsize);
69 //! Converts Unicode ExtendedString <fromstr> to non-ASCII
70 //! CString <tostr> in EUC format, limited to <maxsize>
71 //! characters. To translate the whole <fromstr>, use more
72 //! than twice the length of <fromstr>. Returns true if
73 //! <maxsize> has not been reached before end of conversion.
74 Standard_EXPORT static Standard_Boolean ConvertUnicodeToEUC (const TCollection_ExtendedString& fromstr, Standard_PCharacter& tostr, const Standard_Integer maxsize);
76 //! Converts Unicode ExtendedString <fromstr> to non-ASCII
77 //! CString <tostr> in GB format, limited to <maxsize>
78 //! characters. To translate the whole <fromstr>, use more
79 //! than twice the length of <fromstr>. Returns true if
80 //! <maxsize> has not been reached before end of conversion.
81 Standard_EXPORT static Standard_Boolean ConvertUnicodeToGB (const TCollection_ExtendedString& fromstr, Standard_PCharacter& tostr, const Standard_Integer maxsize);
83 //! Converts Unicode ExtendedString <fromstr> to non-ASCII
84 //! CString <tostr> in ANSI format, limited to <maxsize>
85 //! characters. To translate the whole <fromstr>, use more
86 //! than twice the length of <fromstr>. Returns true if
87 //! <maxsize> has not been reached before end of conversion.
88 Standard_EXPORT static Standard_Boolean ConvertUnicodeToANSI (const TCollection_ExtendedString& fromstr, Standard_PCharacter& tostr, const Standard_Integer maxsize);
90 //! Defines the current conversion format as typecode.
91 //! This conversion format will then be used by the
92 //! functions ConvertFormatToUnicode and
93 //! ConvertUnicodeToFormat to convert the strings.
94 Standard_EXPORT static void SetFormat (const Resource_FormatType typecode);
96 //! Returns the current conversion format (either
97 //! ANSI, EUC, GB or SJIS).
98 //! The current converting format must be defined in
99 //! advance with the SetFormat function.
100 Standard_EXPORT static Resource_FormatType GetFormat();
102 //! Reads converting format from resource "FormatType"
103 //! in Resource Manager "CharSet"
104 Standard_EXPORT static void ReadFormat();
106 //! Converts the non-ASCII C string (as specified by GetFormat()) to the Unicode string of extended characters.
107 static void ConvertFormatToUnicode (const Standard_CString theFromStr,
108 TCollection_ExtendedString& theToStr)
110 return ConvertFormatToUnicode (Resource_Unicode::GetFormat(), theFromStr, theToStr);
113 //! Converts the non-ASCII C string in specified format to the Unicode string of extended characters.
114 //! @param theFormat [in] source encoding
115 //! @param theFromStr [in] text to convert
116 //! @param theToStr [out] destination string
117 Standard_EXPORT static void ConvertFormatToUnicode (const Resource_FormatType theFormat,
118 const Standard_CString theFromStr,
119 TCollection_ExtendedString& theToStr);
121 //! Converts the Unicode string of extended characters to the non-ASCII string according to specified format.
122 //! You need more than twice the length of the source string to complete the conversion.
123 //! The function returns true if conversion is complete, i.e. the maximum number of characters is not reached before the end of conversion.
124 //! @param theFormat [in] destination encoding
125 //! @param theFromStr [in] text to convert
126 //! @param theToStr [out] destination buffer
127 //! @param theMaxSize [in] destination buffer length
128 Standard_EXPORT static Standard_Boolean ConvertUnicodeToFormat (const Resource_FormatType theFormat,
129 const TCollection_ExtendedString& theFromStr,
130 Standard_PCharacter& theToStr,
131 const Standard_Integer theMaxSize);
133 //! Converts the Unicode string of extended characters to the non-ASCII string according to the format returned by the function GetFormat.
134 //! @param theFromStr [in] text to convert
135 //! @param theToStr [out] destination buffer
136 //! @param theMaxSize [in] destination buffer length
137 static Standard_Boolean ConvertUnicodeToFormat (const TCollection_ExtendedString& theFromStr,
138 Standard_PCharacter& theToStr,
139 const Standard_Integer theMaxSize)
141 return ConvertUnicodeToFormat (Resource_Unicode::GetFormat(), theFromStr, theToStr, theMaxSize);
146 #endif // _Resource_Unicode_HeaderFile