Re: Change to NS drawing routines

[Eli Zaretskii <eliz@gnu.org>]

> Date: Mon, 13 Aug 2018 19:46:59 +0100
> From: Alan Third <alan@idiocy.org>
> Cc: emacs-devel@gnu.org
> 
> Going through the previous email discussions, linked in the thread
> above, Eli made it clear that he sees using the expose functions to
> draw, when it’s not an expose event, as being incorrect.
> 
> i.e. this:
> 
> > > Again, invalidating an area to let the "expose" handler draw
> > > afterwards is a very standard, primary, canonical, and sometimes
> > > only way of drawing nowadays. (If you call it is an abuse or
> > > trick, you'll be laughed.)
> > 
> > You can laugh, if you want, but I still think it's abuse, and won't
> > be convinced by being laughed at.
> 
> from http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00435.html
> 
> I can understand the argument to an extent, but I don’t have another
> solution.

We could discuss this again, perhaps the details have changed, or we
might be able o find some compromise everybody can live with.

For starters, what changes, if any, would you need to make in the
glyph matrices, and why?