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Re: 23/NS: redraws according to mouse-face are slow

From: Stefan Monnier
Subject: Re: 23/NS: redraws according to mouse-face are slow
Date: Tue, 05 May 2009 21:47:04 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.93 (gnu/linux)

>> That ns_update_begin() acheives the same effect suggests that perhaps
>> the core mouse face code should do this (through the RIF).
> Yes, show_mouse_face (or one of its callers) should probably call
> update_begin and update_end.  But it's a little far along in the pretest
> to risk that.  I'll make a note of revisiting this after the release.

I think as long as this is guaranteed to only affect the NS port, we can
still install it before the release (assuming tests indicate it does
improve the behavior, and assuming we agree that it's the right way to
fix it).


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