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From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Something like `without-redisplay'?
Date: Tue, 01 Sep 2015 20:00:05 +0300	[thread overview]
Message-ID: <83wpwaaxd6.fsf@gnu.org> (raw)
In-Reply-To: <CAKu-7Wx7LnoYfV74cq1wa5TNpy+zgH3Eun2rXo2kKaLqwVR1qg@mail.gmail.com>

> Date: Tue, 1 Sep 2015 18:47:01 +0200
> From: Alexander Shukaev <haroogan@gmail.com>
> Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
> 
> >> > Horizontal scrolling doesn't move point, AFAIR.
> >>
> >> Even if `auto-hscroll-mode' is on (which it is by default)?
> >
> > auto-hscroll-mode does the opposite: it scrolls the display to move
> > point into the view.  It doesn't move point.
> 
> Does it mean that
> 
> (save-excursion
>   (end-of-visual-line)
>   (current-column))
> 
> has potential to cause unintentional viewport movement?

Only if you force redisplay, or change the window width, as part of
the save-excursion form.  Otherwise, by the time redisplay is entered,
point is back where it was, and no hscroll will happen.



  reply	other threads:[~2015-09-01 17:00 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-31  9:49 Something like `without-redisplay'? Alexander Shukaev
2015-08-31 14:23 ` Eli Zaretskii
2015-08-31 19:32   ` Alexander Shukaev
2015-08-31 23:37     ` Alexander Shukaev
2015-09-01  2:39       ` Eli Zaretskii
2015-09-01 13:56         ` Alexander Shukaev
2015-09-01 14:52           ` Eli Zaretskii
2015-09-01 15:24             ` Alexander Shukaev
2015-09-01 15:57               ` Eli Zaretskii
2015-09-01 16:10                 ` Alexander Shukaev
2015-09-01 16:47                 ` Alexander Shukaev
2015-09-01 17:00                   ` Eli Zaretskii [this message]
2015-09-01 17:24                     ` Alexander Shukaev

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