wxWidgets/docs/latex/wx/fontenum.tex
Vadim Zeitlin 775a998ed0 wxFontEnumerator docs
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4349 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-11-03 23:51:07 +00:00

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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Name: fontenum.tex
%% Purpose: wxFontEnumerator documentation
%% Author: Vadim Zeitlin
%% Modified by:
%% Created: 03.11.99
%% RCS-ID: $Id$
%% Copyright: (c) Vadim Zeitlin
%% Licence: wxWindows licence
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{\class{wxFontEnumerator}}\label{wxfontenumerator}
wxFontEnumerator enumerates either all available fonts on the system or only
the ones with given attributes - either only fixed-width (suited for use in
programs such as terminal emulators and the like) or the fonts available in
the given \helpref{encoding}{wxfontencodingoverview}.
To do this, you just have to call one of EnumerateXXX() functions - either
\helpref{EnumerateFamilies}{wxfontenumeratorenumeratefamilies} or
\helpref{EnumerateEncodings}{wxfontenumeratorenumerateencodings} and the
corresponding callback (
\helpref{OnFontFamily}{wxFontEnumeratoronfontfamily} or
\helpref{OnFontEncoding}{wxfontenumeratoronfontencoding}) will be called
repeatedly until either all fonts (satisfying the specified criteria) are
exhausted or the callback returns FALSE.
\wxheading{Virtual functions to override}
Either \helpref{OnFontFamily}{wxfontenumeratoronfontfamily} or
\helpref{OnFontEncoding}{wxfontenumeratoronfontencoding} should be overridden
depending on whether you plan to call
\helpref{EnumerateFamilies}{wxfontenumeratorenumeratefamilies} or
\helpref{EnumerateEncodings}{wxfontenumeratorenumerateencodings}. Of course,
if you call both of them, you should override both functions.
\wxheading{Derived from}
None
\wxheading{Include files}
<wx/fontenum.h>
\wxheading{See also}
\helpref{Font encoding overview}{wxfontencodingoverview},
\helpref{Font sample}{samplefont},
\helpref{wxFont}{wxfont},
\helpref{wxFontMapper}{wxfontmapper}
\latexignore{\rtfignore{\wxheading{Members}}}
\membersection{wxFontEnumerator::EnumerateFamilies}\label{wxfontenumeratorenumeratefamilies}
\func{virtual bool}{EnumerateFamilies}{
\param{wxFontEncoding }{encoding = wxFONTENCODING\_SYSTEM},
\param{bool }{fixedWidthOnly = FALSE}}
Call \helpref{OnFontFamily}{wxfontenumeratoronfontfamily} for each font which
supports given encoding (only if it is not wxFONTENCODING\_SYSTEM) and is of
fixed width (if {\it fixedWidthOnly} is TRUE).
Calling this function with default arguments will result in enumerating all
fonts available on the system.
\membersection{wxFontEnumerator::EnumerateEncodings}\label{wxfontenumeratorenumerateencodings}
\func{virtual bool}{EnumerateEncodings}{\param{const wxString\& }{font = ""}}
Call \helpref{OnFontEncoding}{wxfontenumeratoronfontencoding} for each
encoding supported by the given font - or for each encoding supported by at
least some font if {\it font} is not specified.
\membersection{wxFontEnumerator::OnFontFamily}\label{wxfontenumeratoronfontfamily}
\func{virtual bool}{OnFontFamily}{\param{const wxString\& }{font}}
Called by \helpref{EnumerateFamilies}{wxfontenumeratorenumeratefamilies} for
each match. Return TRUE to continue enumeration or FALSE to stop it.
\membersection{wxFontEnumerator::OnFontEncoding}\label{wxfontenumeratoronfontencoding}
\func{virtual bool}{OnFontEncoding}{
\param{const wxString\& }{font},
\param{const wxString\& }{encoding}
}
Called by \helpref{EnumerateEncodings}{wxfontenumeratorenumerateencodings} for
each match. Return TRUE to continue enumeration or FALSE to stop it.