GNU bug report logs - #37020
27.0.50; (window-body-width) returns the wrong value with display-line-numbers-mode on

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Lukas Fürmetz <fuermetz <at> mailbox.org>
Subject: bug#37020: closed (bug#37020: 27.0.50; (window-body-width)
 returns the wrong value with display-line-numbers-mode on)
Date: Fri, 23 Aug 2019 06:56:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#37020: 27.0.50; (window-body-width) returns the wrong value with display-line-numbers-mode on

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 37020 <at> debbugs.gnu.org.

-- 
37020: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=37020
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Stefan Kangas <stefan <at> marxist.se>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 37020-done <at> debbugs.gnu.org,
 Lukas Fürmetz <fuermetz <at> mailbox.org>
Subject: bug#37020: 27.0.50; (window-body-width) returns the wrong value with
 display-line-numbers-mode on
Date: Fri, 23 Aug 2019 08:54:47 +0200

Eli Zaretskii <eliz <at> gnu.org> writes:

> tags 37020 notabug
> thanks
>
>> From: Lukas Fürmetz <fuermetz <at> mailbox.org>
>> Date: Tue, 13 Aug 2019 22:11:04 +0200
>>
>> The title says it all. The function `window-body-width' says in it's
>> description, it returns the columns purely of the text window, without
>> any margin, fringes etc. But if you turn on display-line-numbers-mode,
>> it takes up a lot of space in the margin, but `window-body-width' will
>> return the same value as without it.
>
> This is not a bug: the line numbers are part of the text area, and
> thus part of the window's body.  If you need to account for the width
> taken by the line numbers, you can use the line-number-display-width
> function.

In addition to the tag notabug, I'm now also closing this bug report.

Thanks,
Stefan Kangas

[Message part 3 (message/rfc822, inline)]

From: Lukas Fürmetz <fuermetz <at> mailbox.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50; (window-body-width) returns the wrong value with
 display-line-numbers-mode on
Date: Tue, 13 Aug 2019 22:11:04 +0200

The title says it all. The function `window-body-width' says in it's
description, it returns the columns purely of the text window, without
any margin, fringes etc. But if you turn on display-line-numbers-mode,
it takes up a lot of space in the margin, but `window-body-width' will
return the same value as without it.

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