On Wed, 2011-03-02 at 16:29 -0500, Behdad Esfahbod wrote:
> Hi Jeremy,
>
> On 03/02/11 14:34, Jeremy Moles wrote:
> >
> > My question is: using the Fontconfig API, is it possible to--in a
> > generic way--find out what font file (or more likely "files", the
> > Fontconfig API will probably want to work with sets of
> > data)--corresponds to a particular Fontconfig string?
>
> That's what FcFontMatch() does.
>
>
> > For example, we love the expressively Pango provides when it allows us
> > to use fonts in the form of:
> >
> > "Arial Bold 20px"
> >
> > However, a separate API requires the exact font "file" on disk instead,
> > and so we'd like to continue using this expressive Pango/Fontconfig
> > syntax in order to provide the REAL file to the older software.
>
> Unfortunately Pango currently does not provide the function
> pango_fc_font_description_to_pattern(). It will in some future version.
> You can build a PangoFontDescription, but you need to convert that to a
> Fontconfig pattern yourself (or copy the code from pango).
==============================================
FcPattern* pat = FcNameParse("arial");
FcFontSet* fs = FcFontList(0, pat, 0);
for(i = 0; i < fs->nfont; i++) {
if(FcPatternGetString(fs->fonts[i], FC_FILE, 0, &path)
== FcResultMatch)
}
==============================================
The code above is essentially what I'm using to get the font file paths.
It works for sure on Linux, haven't tested it (yet) in Windows.
Without a pango_fc_font_description_to_pattern() function, I'd like to
go the route (temporarily) of copying this code from Pango. Can you give
me any hints as to whereabouts this process is performed?
You mentioned also a kind of "hackish" way of getting the information
out of Pango (loading the font into the PangoFontMap in the context
isn't a problem), but I wasn't able to piece together the series of
calls in order to achieve this... (we can use whatever version of Pango
is necessary)
Thanks!
> Hope that helps,
>
> behdad
>
>
> > I'll continue browsing through the source for now, but if anyone has any
> > advice to get me started, I'd really appreciate it!
> >
> > _______________________________________________
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> > Fontconfig@xxxxxxxxxxxxxxxxxxxxx
> > http://lists.freedesktop.org/mailman/listinfo/fontconfig
> >
>
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