X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7ef3ab50e9705c2724f74ef4fb275030d6fbe589..e63f19ba93dad9ffe386e442e86d38e07345df7b:/docs/latex/wx/mbconv.tex?ds=sidebyside diff --git a/docs/latex/wx/mbconv.tex b/docs/latex/wx/mbconv.tex index f1cc6811e2..3f11aa5894 100644 --- a/docs/latex/wx/mbconv.tex +++ b/docs/latex/wx/mbconv.tex @@ -30,10 +30,29 @@ There are several predefined instances of this class: \twocolitem{\textbf{wxConvLibc}}{Uses the standard ANSI C \texttt{mbstowcs()} and \texttt{wcstombs()} functions to perform the conversions; thus depends on the current locale.} +\twocolitem{\textbf{wxConvLocal}}{Another conversion corresponding to the +current locale but this one uses the best available conversion.} +\twocolitem{\textbf{wxConvUI}}{The conversion used for hte standard UI elements +such as menu items and buttons. This is a pointer which is initially set to +\texttt{wxConvLocal} as the program uses the current locale by default but can +be set to some specific conversion if the program needs to use a specific +encoding for its UI.} +\twocolitem{\textbf{wxConvISO8859\_1}}{Conversion to and from ISO-8859-1 (Latin I) +encoding.} +\twocolitem{\textbf{wxConvUTF8}}{Conversion to and from UTF-8 encoding.} \twocolitem{\textbf{wxConvFile}}{The appropriate conversion for the file names, depends on the system.} +% \twocolitem{\textbf{wxConvCurrent}}{Not really clear what is it for...} \end{twocollist} + +\wxheading{Constants} + +\texttt{wxCONV\_FAILED} value is defined as \texttt{(size\_t)$-1$} and is +returned by the conversion functions instead of the length of the converted +string if the conversion fails. + + \wxheading{Derived from} No base class @@ -48,6 +67,7 @@ No base class \helpref{wxEncodingConverter}{wxencodingconverter}, \helpref{wxMBConv classes overview}{mbconvclasses} + \latexignore{\rtfignore{\wxheading{Members}}} @@ -55,12 +75,15 @@ No base class \func{}{wxMBConv}{\void} -Constructor. +Trivial default constructor. + \membersection{wxMBConv::MB2WC}\label{wxmbconvmb2wc} \constfunc{virtual size\_t}{MB2WC}{\param{wchar\_t *}{out}, \param{const char *}{in}, \param{size\_t }{outLen}} +\deprecated{\helpref{ToWChar}{wxmbconvtowchar}} + Converts from a string \arg{in} in multibyte encoding to Unicode putting up to \arg{outLen} characters into the buffer \arg{out}. @@ -89,6 +112,8 @@ The length of the converted string \emph{excluding} the trailing \NUL. \constfunc{virtual size\_t}{WC2MB}{\param{char* }{buf}, \param{const wchar\_t* }{psz}, \param{size\_t }{n}} +\deprecated{\helpref{FromWChar}{wxmbconvfromwchar}} + Converts from Unicode to multibyte encoding. The semantics of this function (including the return value meaning) is the same as for \helpref{MB2WC}{wxmbconvmb2wc}. @@ -191,6 +216,45 @@ result in a wxWCharBuffer. The macro wxWX2WCbuf is defined as the correct return type (without const). +\membersection{wxMBConv::FromWChar}\label{wxmbconvfromwchar} + +\constfunc{virtual size\_t}{FromWChar}{\param{wchar\_t *}{dst}, \param{size\_t }{dstLen}, \param{const char *}{src}, \param{size\_t }{srcLen = $-1$}} + +The most general function for converting a multibyte string to a wide string. +The main case is when \arg{dst} is not \NULL and \arg{srcLen} is not $-1$: then +the function converts exactly \arg{srcLen} bytes starting at \arg{src} into +wide string which it output to \arg{dst}. If the length of the resulting wide +string is greater than \arg{dstLen}, an error is returned. Note that if +\arg{srcLen} bytes don't include \NUL characters, the resulting wide string is +not \NUL-terminated neither. + +If \arg{srcLen} is $-1$, the function supposes that the string is properly +(i.e. as necessary for the encoding handled by this conversion) \NUL-terminated +and converts the entire string, including any trailing \NUL bytes. In this case +the wide string is also \NUL-terminated. + +Finally, if \arg{dst} is \NULL, the function returns the length of the needed +buffer. + +\wxheading{Return value} + +The number of characters written to \arg{dst} (or the number of characters +which would have been written to it if it were non-\NULL) on success or +\texttt{wxCONV\_FAILED} on error. + + +\membersection{wxMBConv::GetMaxMBNulLen}\label{wxmbconvgetmaxmbnullen} + +\func{const size\_t}{GetMaxMBNulLen}{\void} + +Returns the maximal value which can be returned by +\helpref{GetMBNulLen}{wxmbconvgetmbnullen} for any conversion object. Currently +this value is $4$. + +This method can be used to allocate the buffer with enough space for the +trailing \NUL characters for any encoding. + + \membersection{wxMBConv::GetMBNulLen}\label{wxmbconvgetmbnullen} \constfunc{size\_t}{GetMBNulLen}{\void} @@ -201,3 +265,11 @@ which the string is terminated with $2$ and $4$ \NUL characters respectively. The other cases are not currently supported and $-1$ is returned for them. +\membersection{wxMBConv::ToWChar}\label{wxmbconvtowchar} + +\constfunc{virtual size\_t}{ToWChar}{\param{char\_t *}{dst}, \param{size\_t }{dstLen}, \param{const wchar\_t *}{src}, \param{size\_t }{srcLen = $-1$}} + +This function has the same semantics as \helpref{FromWChar}{wxmbconvfromwchar} +except that it converts a wide string to multibyte one. + +