Re: Emacs and Gnome Canvas

[Jan Djärv]

YAMAMOTO Mitsuharu skrev 2010-07-18 09.45:
> > > > > > On Sun, 18 Jul 2010 09:10:18 +0200, Jan Djärv<address@hidden>  said:
>
> > BTW, you would have to invent syntactic expose events for X, Xt and
> > TTY unless you plan to have two display engines.
>
> We don't need to change drawing code for TTY.  It just draws during
> redisplay as in the current code.

Then you have to have two redisplay engines.  One that calculates dirty 
regions and updates during expose, and one that updates at once.

The alternative is to force two redisplays, redisplay due to update and then 
the backends just set dirty area, and then once again for the expose where the 
actual drawing takes place.

I don't see how you are going to get around it.

        Jan D.