wxWidgets/docs/latex/wx/encconv.tex
Harco de Hilster d17f05afeb Some fixes (&->\&, _->\_) to remove latex complaints.
Actually the whole point of this excercise was to try to make a nice pdf file
with contents tree and thumbnail pages using pdflatex, but it keeps depleting
tex's resources :-(


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5884 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2000-02-07 10:14:56 +00:00

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5.0 KiB
TeX

%
% automatically generated by HelpGen from
% encconv.h at 30/Dec/99 18:45:16
%
\section{\class{wxEncodingConverter}}\label{wxencodingconverter}
This class is capable of converting strings between any two
8-bit encodings/charsets. It can also convert from/to Unicode (but only
if you compiled wxWindows with wxUSE\_UNICODE set to 1).
\wxheading{Derived from}
\helpref{wxObject}{wxobject}
\latexignore{\rtfignore{\wxheading{Members}}}
\membersection{wxEncodingConverter::wxEncodingConverter}\label{wxencodingconverterwxencodingconverter}
\func{}{wxEncodingConverter}{\void}
Constructor.
\membersection{wxEncodingConverter::Init}\label{wxencodingconverterinit}
\func{bool}{Init}{\param{wxFontEncoding }{input\_enc}, \param{wxFontEncoding }{output\_enc}, \param{int }{method = wxCONVERT\_STRICT}}
Initialize convertion. Both output or input encoding may
be wxFONTENCODING\_UNICODE, but only if wxUSE\_ENCODING is set to 1.
All subsequent calls to \helpref{Convert()}{wxencodingconverterconvert}
will interpret its argument
as a string in {\it input\_enc} encoding and will output string in
{\it output\_enc} encoding.
You must call this method before calling Convert. You may call
it more than once in order to switch to another conversion.
{\it Method} affects behaviour of Convert() in case input character
cannot be converted because it does not exist in output encoding:
\begin{twocollist}\itemsep=0pt
\twocolitem{{\bf wxCONVERT\_STRICT}}{follow behaviour of GNU Recode -
just copy unconvertable characters to output and don't change them
(its integer value will stay the same)}
\twocolitem{{\bf wxCONVERT\_SUBSTITUTE}}{try some (lossy) substitutions
- e.g. replace unconvertable latin capitals with acute by ordinary
capitals, replace en-dash or em-dash by '-' etc.}
\end{twocollist}
Both modes gurantee that output string will have same length
as input string.
\wxheading{Return value}
FALSE if given conversion is impossible, TRUE otherwise
(conversion may be impossible either if you try to convert
to Unicode with non-Unicode build of wxWindows or if input
or output encoding is not supported.)
\membersection{wxEncodingConverter::Convert}\label{wxencodingconverterconvert}
\func{wxString}{Convert}{\param{const wxString\& }{input}}
\func{void}{Convert}{\param{const wxChar* }{input}, \param{wxChar* }{output}}
\func{void}{Convert}{\param{wxChar* }{str}}
\func{void}{Convert}{\param{const char* }{input}, \param{wxChar* }{output}}
Convert input string according to settings passed to \helpref{Init}{wxencodingconverterinit}.
Note that you must call Init before using Convert!
\membersection{wxEncodingConverter::GetPlatformEquivalents}\label{wxencodingconvertergetplatformequivalents}
\func{static wxFontEncodingArray}{GetPlatformEquivalents}{\param{wxFontEncoding }{enc}, \param{int }{platform = wxPLATFORM\_CURRENT}}
Return equivalents for given font that are used
under given platform. Supported platforms:
\begin{itemize}\itemsep=0pt
\item wxPLATFORM\_UNIX
\item wxPLATFORM\_WINDOWS
\item wxPLATFORM\_OS2
\item wxPLATFORM\_MAC
\item wxPLATFORM\_CURRENT
\end{itemize}
wxPLATFORM\_CURRENT means the plaform this binary was compiled for.
Examples:
\begin{verbatim}
current platform enc returned value
----------------------------------------------
unix CP1250 {ISO8859_2}
unix ISO8859_2 {ISO8859_2}
windows ISO8859_2 {CP1250}
unix CP1252 {ISO8859_1,ISO8859_15}
\end{verbatim}
Equivalence is defined in terms of convertibility:
2 encodings are equivalent if you can convert text between
then without loosing information (it may - and will - happen
that you loose special chars like quotation marks or em-dashes
but you shouldn't loose any diacritics and language-specific
characters when converting between equivalent encodings).
Remember that this function does {\bf NOT} check for presence of
fonts in system. It only tells you what are most suitable
encodings. (It usually returns only one encoding.)
\wxheading{Notes}
\begin{itemize}\itemsep=0pt
\item Note that argument {\it enc} itself may be present in the returned array,
so that you can - as a side effect - detect whether the
encoding is native for this platform or not.
\item helpref{Convert}{wxencodingconverterconvert} is not limited to
converting between equivalent encodings, it can convert between arbitrary
two encodings.
\item If {\it enc} is present in returned array, then it is {\bf always} first
item of it.
\item Please note that the returned array may not contain any items at all.
\end{itemize}
\membersection{wxEncodingConverter::GetAllEquivalents}\label{wxencodingconvertergetallequivalents}
\func{static wxFontEncodingArray}{GetAllEquivalents}{\param{wxFontEncoding }{enc}}
Similar to
\helpref{GetPlatformEquivalents}{wxencodingconvertergetplatformequivalents},
but this one will return ALL
equivalent encodings, regardless the platform, and including itself.
This platform's encodings are before others in the array. And again, if {\it enc} is in the array,
it is the very first item in it.