GNU bug report logs - #38181
Actual height of mode-line not taken into account

Previous Next

Full log

Message #257 received at 38181 <at> debbugs.gnu.org (full text, mbox):

From: martin rudalics <rudalics <at> gmx.at>
To: Eli Zaretskii <eliz <at> gnu.org>, Carlos Pita <carlosjosepita2 <at> gmail.com>
Cc: 38181 <at> debbugs.gnu.org
Subject: Re: bug#38181: Actual height of mode-line not taken into account
Date: Sun, 17 Oct 2021 10:34:35 +0200

>> In practice this seems to nicely cover the relevant cases:
>>
>> (defun my-redisplay-hack (&rest _)
>>    (when mode-line-format
>>      (redisplay t)))
>> (advice-add #'split-window :after #'my-redisplay-hack)
>
> I wonder how this fixes anything, since split-window already triggers
> redisplay.  Martin, do you understand the difference?

There is no difference in the use cases posted here.  The results will
change only when a window is reused and then fit to its buffer.

>> but there is some flickering because the window is displayed before
>> the fit and then immediately replaced by the fitted version.
>
> Which means there are two redisplay cycles, and the first one (which
> produces incorrect display) is the one from your hack.  So once again,
> I wonder why that call to 'redisplay' is needed.

Where "incorrect redisplay" stands for "window that has not been yet fit
to its buffer".

martin

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.