Re: [Freetype] font catalog

[Antoine Leca]

Brian Stell wrote:
> 
> One of the requirements for Mozilla is that the text should be
> readable when ever possible.
> 
> TrueType cmaps often have non-zero glyph indexes that are supposed to
> draw a glyphs but that in fact have no contours and thus are blank.

Looks like what is or may be expected for characters like U+2002,
U+200C, U+F123 or U+F1234. Furthermore, it may be an acceptable policy
for characters like U+0300 (grave accent), for example in a
all-uppercase (decorative) font where accents are purposely not shown.
Same kind of reasonment with U+0A4D or U+17D2 (characters which do not
have usual standalone representations, because they are usualy
combined by the layout engine). Etc.
 

> This font cataloging code is in the patches attached to
> http://bugzilla.mozilla.org/show_bug.cgi?id=82076 in the
> nsFontCatalog.h and nsFontCatalog.cpp files.
> 
> It might be an interesting thing to add to FreeType.

They are quite a bit targetted exclusively at X11, ain't they?

 
> Making this available to the XFree86 server would benefit all X
> clients.

<NIT-PICKING>
But this is not the XFree86 list, but rather the Freetype one.
</NIT-PICKING>


Antoine