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From: martin rudalics <rudalics@gmx.at>
To: Eli Zaretskii <eliz@gnu.org>
Cc: sebastien@chapu.is, emacs-devel@gnu.org
Subject: Re: [PATCH] Add function window-line-width
Date: Fri, 8 Nov 2019 19:27:47 +0100	[thread overview]
Message-ID: <ae3b26ea-cf92-a64e-052b-3358bc99c932@gmx.at> (raw)
In-Reply-To: <83ftiycxrl.fsf@gnu.org>

 > In general, functions that use only the glyph matrices have a
 > significant disadvantage in that they will fail when display is not up
 > to date, something that can happen out of control of a Lisp program
 > that calls the function.  So I very much prefer window-text-pixel-size
 > to an alternative that uses the glyph matrices.  If we find that using
 > the glyph matrices is much faster, then I'd prefer to fix
 > window-text-pixel-size to use the glyph matrices when possible, and
 > otherwise fall back to its current method.  See move-point-visually
 > for one example of how this can be done.

Agreed.  Sébastien can you try to show "that using the glyph matrices
is much faster"?

martin




  reply	other threads:[~2019-11-08 18:27 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-06 22:49 [PATCH] Add function window-line-width Sébastien Chapuis
2019-11-07  8:40 ` martin rudalics
2019-11-07  8:50   ` martin rudalics
2019-11-08  4:54     ` Sébastien Chapuis
2019-11-08  9:21       ` martin rudalics
2019-11-08 13:18         ` Eli Zaretskii
2019-11-08 18:27           ` martin rudalics [this message]
2019-11-09 22:09             ` Sébastien Chapuis
2019-11-10  9:46               ` martin rudalics
2019-11-10 19:02                 ` Sébastien Chapuis
2019-11-14 10:08                   ` Eli Zaretskii
2019-11-14  9:11               ` Eli Zaretskii
2019-11-07  9:23 ` Robert Pluim

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