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1 | % | |
2 | % automatically generated by HelpGen from | |
3 | % encconv.h at 30/Dec/99 18:45:16 | |
4 | % | |
5 | ||
6 | \section{\class{wxEncodingConverter}}\label{wxencodingconverter} | |
7 | ||
8 | This class is capable of converting strings between any two | |
9 | 8-bit encodings/charsets. It can also convert from/to Unicode (but only | |
10 | if you compiled wxWindows with wxUSE\_WCHAR\_T set to 1). | |
11 | ||
12 | \wxheading{Derived from} | |
13 | ||
14 | \helpref{wxObject}{wxobject} | |
15 | ||
16 | \wxheading{Include files} | |
17 | ||
18 | <wx/encconv.h> | |
19 | ||
20 | \wxheading{See also} | |
21 | ||
22 | \helpref{wxFontMapper}{wxfontmapper}, | |
23 | \helpref{wxMBConv}{wxmbconv}, | |
24 | \helpref{Writing non-English applications}{nonenglishoverview} | |
25 | ||
26 | ||
27 | \latexignore{\rtfignore{\wxheading{Members}}} | |
28 | ||
29 | \membersection{wxEncodingConverter::wxEncodingConverter}\label{wxencodingconverterwxencodingconverter} | |
30 | ||
31 | \func{}{wxEncodingConverter}{\void} | |
32 | ||
33 | Constructor. | |
34 | ||
35 | \membersection{wxEncodingConverter::Init}\label{wxencodingconverterinit} | |
36 | ||
37 | \func{bool}{Init}{\param{wxFontEncoding }{input\_enc}, \param{wxFontEncoding }{output\_enc}, \param{int }{method = wxCONVERT\_STRICT}} | |
38 | ||
39 | Initialize convertion. Both output or input encoding may | |
40 | be wxFONTENCODING\_UNICODE, but only if wxUSE\_ENCODING is set to 1. | |
41 | All subsequent calls to \helpref{Convert()}{wxencodingconverterconvert} | |
42 | will interpret its argument | |
43 | as a string in {\it input\_enc} encoding and will output string in | |
44 | {\it output\_enc} encoding. | |
45 | You must call this method before calling Convert. You may call | |
46 | it more than once in order to switch to another conversion. | |
47 | {\it Method} affects behaviour of Convert() in case input character | |
48 | cannot be converted because it does not exist in output encoding: | |
49 | ||
50 | \begin{twocollist}\itemsep=0pt | |
51 | \twocolitem{{\bf wxCONVERT\_STRICT}}{follow behaviour of GNU Recode - | |
52 | just copy unconvertible characters to output and don't change them | |
53 | (its integer value will stay the same)} | |
54 | \twocolitem{{\bf wxCONVERT\_SUBSTITUTE}}{try some (lossy) substitutions | |
55 | - e.g. replace unconvertible latin capitals with acute by ordinary | |
56 | capitals, replace en-dash or em-dash by '-' etc.} | |
57 | \end{twocollist} | |
58 | ||
59 | Both modes guarantee that output string will have same length | |
60 | as input string. | |
61 | ||
62 | \wxheading{Return value} | |
63 | ||
64 | FALSE if given conversion is impossible, TRUE otherwise | |
65 | (conversion may be impossible either if you try to convert | |
66 | to Unicode with non-Unicode build of wxWindows or if input | |
67 | or output encoding is not supported.) | |
68 | ||
69 | \membersection{wxEncodingConverter::Convert}\label{wxencodingconverterconvert} | |
70 | ||
71 | \func{wxString}{Convert}{\param{const wxString\& }{input}} | |
72 | ||
73 | \func{void}{Convert}{\param{const wxChar* }{input}, \param{wxChar* }{output}} | |
74 | ||
75 | \func{void}{Convert}{\param{wxChar* }{str}} | |
76 | ||
77 | \func{void}{Convert}{\param{const char* }{input}, \param{wxChar* }{output}} | |
78 | ||
79 | Convert input string according to settings passed to \helpref{Init}{wxencodingconverterinit}. | |
80 | Note that you must call Init before using Convert! | |
81 | ||
82 | \membersection{wxEncodingConverter::GetPlatformEquivalents}\label{wxencodingconvertergetplatformequivalents} | |
83 | ||
84 | \func{static wxFontEncodingArray}{GetPlatformEquivalents}{\param{wxFontEncoding }{enc}, \param{int }{platform = wxPLATFORM\_CURRENT}} | |
85 | ||
86 | Return equivalents for given font that are used | |
87 | under given platform. Supported platforms: | |
88 | ||
89 | \begin{itemize}\itemsep=0pt | |
90 | \item wxPLATFORM\_UNIX | |
91 | \item wxPLATFORM\_WINDOWS | |
92 | \item wxPLATFORM\_OS2 | |
93 | \item wxPLATFORM\_MAC | |
94 | \item wxPLATFORM\_CURRENT | |
95 | \end{itemize} | |
96 | ||
97 | wxPLATFORM\_CURRENT means the plaform this binary was compiled for. | |
98 | ||
99 | Examples: | |
100 | ||
101 | \begin{verbatim} | |
102 | current platform enc returned value | |
103 | ---------------------------------------------- | |
104 | unix CP1250 {ISO8859_2} | |
105 | unix ISO8859_2 {ISO8859_2} | |
106 | windows ISO8859_2 {CP1250} | |
107 | unix CP1252 {ISO8859_1,ISO8859_15} | |
108 | \end{verbatim} | |
109 | ||
110 | Equivalence is defined in terms of convertibility: | |
111 | two encodings are equivalent if you can convert text between | |
112 | then without losing information (it may - and will - happen | |
113 | that you lose special chars like quotation marks or em-dashes | |
114 | but you shouldn't lose any diacritics and language-specific | |
115 | characters when converting between equivalent encodings). | |
116 | ||
117 | Remember that this function does {\bf NOT} check for presence of | |
118 | fonts in system. It only tells you what are most suitable | |
119 | encodings. (It usually returns only one encoding.) | |
120 | ||
121 | \wxheading{Notes} | |
122 | ||
123 | \begin{itemize}\itemsep=0pt | |
124 | \item Note that argument {\it enc} itself may be present in the returned array, | |
125 | so that you can, as a side-effect, detect whether the | |
126 | encoding is native for this platform or not. | |
127 | \item \helpref{Convert}{wxencodingconverterconvert} is not limited to | |
128 | converting between equivalent encodings, it can convert between two arbitrary | |
129 | encodings. | |
130 | \item If {\it enc} is present in the returned array, then it is {\bf always} the first | |
131 | item of it. | |
132 | \item Please note that the returned array may contain no items at all. | |
133 | \end{itemize} | |
134 | ||
135 | \membersection{wxEncodingConverter::GetAllEquivalents}\label{wxencodingconvertergetallequivalents} | |
136 | ||
137 | \func{static wxFontEncodingArray}{GetAllEquivalents}{\param{wxFontEncoding }{enc}} | |
138 | ||
139 | Similar to | |
140 | \helpref{GetPlatformEquivalents}{wxencodingconvertergetplatformequivalents}, | |
141 | but this one will return ALL | |
142 | equivalent encodings, regardless of the platform, and including itself. | |
143 | ||
144 | This platform's encodings are before others in the array. And again, if {\it enc} is in the array, | |
145 | it is the very first item in it. | |
146 |