Re: it->nglyphs for automatic compositions

[Eli Zaretskii <eliz@gnu.org>]

> From: Kenichi Handa <handa@m17n.org>
> Cc: emacs-devel@gnu.org
> Date: Tue, 23 Aug 2011 09:35:59 +0900
> 
> In article <83k4a5idcu.fsf@gnu.org>, Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Currently, x_produce_glyphs does not set the it->nglyphs member to
> > anything, so it stays at zero.  This causes pos-visible-in-window-p to
> > return incorrect pixel coordinates when invoked on a character that is
> > at column zero and is a composed character.  Note that
> > produce_composite_glyph, which is called only on terminal frames, does
> > set that field.  So I propose the following patch.
> 
> I agree with that patch.  Perhaps I just forgot to set
> it->nglyphs when I added this part of the code:
> 
>   else if (it->what == IT_COMPOSITION)
>     {
>       /* A dynamic (automatic) composition.  */
> [...]
>     }

Thanks, committed.