From: Christoph Arenz <tiga.arenz@web.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 54800@debbugs.gnu.org
Subject: bug#54800: 28.1; calc: Cursor positioned at weird position in calc stack
Date: Tue, 12 Apr 2022 17:45:42 +0200 [thread overview]
Message-ID: <064785f3-5e77-ae50-aaa5-e590a7eafe4e@web.de> (raw)
In-Reply-To: <3bd62f12-0d8b-314a-b812-4467e1f6ba43@web.de>
On 11.04.22 16:53, Christoph Arenz wrote:
>
> On 11.04.22 13:45, Eli Zaretskii wrote:
>>>> I noticed that while the patch fixes the problem in most cases,
>>>> depending on the height of the calc stack window, there can be the
>>>> case
>>>> that the cursor is not positioned on the top-of-stack symbol `.'
>>>> but one
>>>> line
>>>> above, at the beginning of the line with the first stack entry.
>>>>
>>>> This can be changed by using the number 4 instead of 3 in the patch.
>>>> Not sure if this is the best fix.
>>>>
>>>> (vertical-motion (- 4 (window-height win)))
>>> Can you show a reproducible recipe starting from "emacs -Q", so I
>>> could investigate?
>> And while at that, would the below fix the problem in the rare cases
>> where you saw them?
>>
>> (vertical-motion (- 3 (window-height win 'ceiling)))
>>
>> That is, ask window-height to produce the smallest integer number
>> greater than the window's height (in case the height in line units is
>> not integer)?
>
> Seems 'ceiling does not fix it, but 'floor does, like so:
>
> (vertical-motion (- 3 (window-height win 'floor)))
And there are still cases where above does not work correctly.
E.g. when using a theme which has different line heights for header line
and mode line than for text lines,
say M-x load-theme leuven .
Approaching it differently seems to cover those cases as well:
(vertical-motion (- 1 (window-body-height)))
>
> How to reproduce -- I could not find a way to do so automatically,
> here is for a manual way:
>
> 1. emacs -Q
> 2. C-x * *
> 3. enter some numbers to fill calc stack window, and some more
3a. Even finer-grained risizing and watching the effects can be achieved by
M-: (setq window-resize-pixelwise t)
> 4. o (calc-realign)
> 5. watch where the cursor is placed: on the top-of-stack symbol, or
> on the beginning of the line with the first stack entry.
> 6. increase the stack window height by minimally moving the mode line
> above the stack window with the mouse; only increase height by
> sub-line-height amount
> 7. repeat 4. to 6. until you can observe the symptom
>
>
next prev parent reply other threads:[~2022-04-12 15:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-08 19:44 bug#54800: 28.1; calc: Cursor positioned at weird position in calc stack Christoph Arenz
2022-04-09 7:34 ` Eli Zaretskii
2022-04-09 12:31 ` Christoph Arenz
2022-04-09 13:32 ` Eli Zaretskii
2022-04-11 10:25 ` Christoph Arenz
2022-04-11 11:27 ` Eli Zaretskii
2022-04-11 11:45 ` Eli Zaretskii
2022-04-11 14:53 ` Christoph Arenz
2022-04-12 15:45 ` Christoph Arenz [this message]
2022-04-12 20:44 ` Christoph Arenz
2022-04-13 13:11 ` Eli Zaretskii
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=064785f3-5e77-ae50-aaa5-e590a7eafe4e@web.de \
--to=tiga.arenz@web.de \
--cc=54800@debbugs.gnu.org \
--cc=eliz@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).