2000-03-11 05:05:40 -05:00
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% fontmap.h at 10/Mar/00 23:54:16
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1999-11-03 18:51:07 -05:00
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\section{\class{wxFontMapper}}\label{wxfontmapper}
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2000-03-11 05:05:40 -05:00
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wxFontMapper manages user-definable correspondence between logical font
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names and the fonts present on the machine.
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The default implementations of all functions will ask the user if they are
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not capable of finding the answer themselves and store the answer in a
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config file (configurable via SetConfigXXX functions). This behaviour may
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be disabled by giving the value of false to "interactive" parameter.
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However, the functions will always consult the config file to allow the
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user-defined values override the default logic and there is no way to
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disable this - which shouldn't be ever needed because if "interactive" was
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never true, the config file is never created anyhow.
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In case everything else fails (i.e. there is no record in config file
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and "interactive" is false or user denied to choose any replacement),
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the class queries \helpref{wxEncodingConverter}{wxencodingconverter}
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for "equivalent" encodings (e.g. iso8859-2 and cp1250) and tries them.
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2003-01-23 14:49:53 -05:00
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\wxheading{Using wxFontMapper in conjunction with wxMBConv classes}
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If you need to display text in encoding which is not available at
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host system (see \helpref{IsEncodingAvailable}{wxfontmapperisencodingavailable}),
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you may use these two classes to find font in some similar encoding
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(see \helpref{GetAltForEncoding}{wxfontmappergetaltforencoding})
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and convert the text to this encoding
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(\helpref{wxMBConv classes}{mbconvclasses}).
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Following code snippet demonstrates it:
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\begin{verbatim}
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if (!wxFontMapper::Get()->IsEncodingAvailable(enc, facename))
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{
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wxFontEncoding alternative;
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if (wxFontMapper::Get()->GetAltForEncoding(enc, &alternative,
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facename, false))
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{
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wxCSConv convFrom(wxFontMapper::Get()->GetEncodingName(enc));
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wxCSConv convTo(wxFontMapper::Get()->GetEncodingName(alternative));
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text = wxString(text.mb_str(convFrom), convTo);
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}
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else
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...failure (or we may try iso8859-1/7bit ASCII)...
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}
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...display text...
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\end{verbatim}
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\wxheading{Derived from}
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No base class
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\wxheading{Include files}
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<wx/fontmap.h>
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\wxheading{See also}
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\helpref{wxEncodingConverter}{wxencodingconverter},
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\helpref{Writing non-English applications}{nonenglishoverview}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxFontMapper::wxFontMapper}\label{wxfontmapperwxfontmapper}
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\func{}{wxFontMapper}{\void}
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Default ctor.
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\wxheading{Note}
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The preferred way of creating a wxFontMapper instance is to call
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\helpref{wxFontMapper::Get}{wxfontmapperget}.
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\membersection{wxFontMapper::\destruct{wxFontMapper}}\label{wxfontmapperdtor}
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\func{}{\destruct{wxFontMapper}}{\void}
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Virtual dtor for a base class.
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\membersection{wxFontMapper::CharsetToEncoding}\label{wxfontmappercharsettoencoding}
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\func{wxFontEncoding}{CharsetToEncoding}{\param{const wxString\& }{charset}, \param{bool }{interactive = true}}
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Returns the encoding for the given charset (in the form of RFC 2046) or
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\texttt{wxFONTENCODING\_SYSTEM} if couldn't decode it.
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Be careful when using this function with \arg{interactive} set to \true
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(default value) as the function then may show a dialog box to the user which
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may lead to unexpected reentrancies and may also take a significantly longer
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time than a simple function call. For these reasons, it is almost always a bad
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idea to call this function from the event handlers for repeatedly generated
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events such as \texttt{EVT\_PAINT}.
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2002-04-06 10:04:27 -05:00
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\membersection{wxFontMapper::Get}\label{wxfontmapperget}
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\func{static wxFontMapper *}{Get}{\void}
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Get the current font mapper object. If there is no current object, creates
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one.
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\wxheading{See also}
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\helpref{wxFontMapper::Set}{wxfontmapperset}
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2005-09-18 19:04:48 -04:00
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\membersection{wxFontMapper::GetAllEncodingNames}{\label{wxfontmappergetallencodingnames}
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\func{static const wxChar**}{GetAllEncodingNames}{\param{wxFontEncoding }{encoding}}
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Returns the array of all possible names for the given encoding. The array is
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\NULL-terminated. IF it isn't empty, the first name in it is the canonical
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encoding name, i.e. the same string as returned by
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\helpref{GetEncodingName()}{wxfontmappergetencodingname}.
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\membersection{wxFontMapper::GetAltForEncoding}\label{wxfontmappergetaltforencoding}
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\func{bool}{GetAltForEncoding}{\param{wxFontEncoding }{encoding}, \param{wxNativeEncodingInfo* }{info}, \param{const wxString\& }{facename = wxEmptyString}, \param{bool }{interactive = true}}
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\func{bool}{GetAltForEncoding}{\param{wxFontEncoding }{encoding}, \param{wxFontEncoding* }{alt\_encoding}, \param{const wxString\& }{facename = wxEmptyString}, \param{bool }{interactive = true}}
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Find an alternative for the given encoding (which is supposed to not be
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available on this system). If successful, return true and fill info
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structure with the parameters required to create the font, otherwise
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return false.
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2004-05-04 04:27:20 -04:00
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The first form is for wxWidgets' internal use while the second one
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is better suitable for general use -- it returns wxFontEncoding which
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can consequently be passed to wxFont constructor.
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2003-06-22 18:20:40 -04:00
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\membersection{wxFontMapper::GetEncoding}\label{wxfontmappergetencoding}
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\func{static wxFontEncoding}{GetEncoding}{\param{size\_t }{n}}
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Returns the {\it n}-th supported encoding. Together with
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\helpref{GetSupportedEncodingsCount()}{wxfontmappergetsupportedencodingscount}
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this method may be used to get all supported encodings.
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2004-04-11 06:40:04 -04:00
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\membersection{wxFontMapper::GetEncodingDescription}\label{wxfontmappergetencodingdescription}
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\func{static wxString}{GetEncodingDescription}{\param{wxFontEncoding }{encoding}}
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Return user-readable string describing the given encoding.
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\membersection{wxFontMapper::GetEncodingFromName}\label{wxfontmappergetencodingfromname}
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\func{static wxFontEncoding}{GetEncodingFromName}{\param{const wxString\& }{encoding}}
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Return the encoding corresponding to the given internal name. This function is
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the inverse of \helpref{GetEncodingName}{wxfontmappergetencodingname} and is
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intentionally less general than
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\helpref{CharsetToEncoding}{wxfontmappercharsettoencoding}, i.e. it doesn't
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try to make any guesses nor ever asks the user. It is meant just as a way of
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restoring objects previously serialized using
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\helpref{GetEncodingName}{wxfontmappergetencodingname}.
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\membersection{wxFontMapper::GetEncodingName}\label{wxfontmappergetencodingname}
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\func{static wxString}{GetEncodingName}{\param{wxFontEncoding }{encoding}}
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Return internal string identifier for the encoding (see also
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\helpref{GetEncodingDescription()}{wxfontmappergetencodingdescription})
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\wxheading{See also}
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\helpref{GetEncodingFromName}{wxfontmappergetencodingfromname}
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2003-06-22 18:20:40 -04:00
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\membersection{wxFontMapper::GetSupportedEncodingsCount}\label{wxfontmappergetsupportedencodingscount}
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\func{static size\_t}{GetSupportedEncodingsCount}{\void}
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Returns the number of the font encodings supported by this class. Together with
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\helpref{GetEncoding}{wxfontmappergetencoding} this method may be used to get
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all supported encodings.
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2004-04-11 06:40:04 -04:00
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\membersection{wxFontMapper::IsEncodingAvailable}\label{wxfontmapperisencodingavailable}
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\func{bool}{IsEncodingAvailable}{\param{wxFontEncoding }{encoding}, \param{const wxString\& }{facename = wxEmptyString}}
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Check whether given encoding is available in given face or not.
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If no facename is given, find {\it any} font in this encoding.
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2000-03-11 05:05:40 -05:00
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\membersection{wxFontMapper::SetDialogParent}\label{wxfontmappersetdialogparent}
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\func{void}{SetDialogParent}{\param{wxWindow* }{parent}}
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The parent window for modal dialogs.
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\membersection{wxFontMapper::SetDialogTitle}\label{wxfontmappersetdialogtitle}
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\func{void}{SetDialogTitle}{\param{const wxString\& }{title}}
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The title for the dialogs (note that default is quite reasonable).
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\membersection{wxFontMapper::Set}\label{wxfontmapperset}
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\func{static wxFontMapper *}{Set}{\param{wxFontMapper *}{mapper}}
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Set the current font mapper object and return previous one (may be NULL).
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This method is only useful if you want to plug-in an alternative font mapper
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into wxWidgets.
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\wxheading{See also}
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\helpref{wxFontMapper::Get}{wxfontmapperget}
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\membersection{wxFontMapper::SetConfig}\label{wxfontmappersetconfig}
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\func{void}{SetConfig}{\param{wxConfigBase* }{config}}
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Set the config object to use (may be NULL to use default).
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By default, the global one (from wxConfigBase::Get() will be used)
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and the default root path for the config settings is the string returned by
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GetDefaultConfigPath().
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\membersection{wxFontMapper::SetConfigPath}\label{wxfontmappersetconfigpath}
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\func{void}{SetConfigPath}{\param{const wxString\& }{prefix}}
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Set the root config path to use (should be an absolute path).
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