* width of line numbers
@ 2020-12-22 9:23 Joost Kremers
2020-12-22 10:06 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-22 10:12 ` Stephen Berman
0 siblings, 2 replies; 6+ messages in thread
From: Joost Kremers @ 2020-12-22 9:23 UTC (permalink / raw)
To: gnu-emacs-help
Hi all,
I was wondering if there's a way to find out the width of the current line
number display (with `display-line-number-mode`, not `linum-mode`).
Or, alternatively, get the window width without the line number. Both
`window-body-width` and `window-total-width` (why are there two functions, BTW?)
report the width of the text area without "dividers, scrollbars, margins,
fringes", but the line number display is still included.
TIA
--
Joost Kremers
Life has its moments
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: width of line numbers
2020-12-22 9:23 width of line numbers Joost Kremers
@ 2020-12-22 10:06 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-22 10:46 ` Joost Kremers
2020-12-22 10:12 ` Stephen Berman
1 sibling, 1 reply; 6+ messages in thread
From: Emanuel Berg via Users list for the GNU Emacs text editor @ 2020-12-22 10:06 UTC (permalink / raw)
To: help-gnu-emacs
Joost Kremers wrote:
> I was wondering if there's a way to find out the width of
> the current line number display (with
> `display-line-number-mode`, not `linum-mode`).
A hard to spot typo, should be `display-line-numbers-mode'.
> Or, alternatively, get the window width without the
> line number.
(defun display-width ()
(interactive)
(message "%s" (- (window-width) (line-number-display-width))) )
> `window-body-width` and `window-total-width` (why are there
> two functions, BTW?)
Two functions? What about `window-width'? :P
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: width of line numbers
2020-12-22 9:23 width of line numbers Joost Kremers
2020-12-22 10:06 ` Emanuel Berg via Users list for the GNU Emacs text editor
@ 2020-12-22 10:12 ` Stephen Berman
2020-12-22 10:45 ` Joost Kremers
2020-12-22 15:57 ` Eli Zaretskii
1 sibling, 2 replies; 6+ messages in thread
From: Stephen Berman @ 2020-12-22 10:12 UTC (permalink / raw)
To: Joost Kremers; +Cc: gnu-emacs-help
On Tue, 22 Dec 2020 10:23:26 +0100 Joost Kremers <joostkremers@fastmail.fm> wrote:
> Hi all,
>
> I was wondering if there's a way to find out the width of the current line
> number display (with `display-line-number-mode`, not `linum-mode`).
(line-number-display-width)
> Or, alternatively, get the window width without the line number.
This should do it:
(- (window-body-width) (line-number-display-width))
>
> Both
> `window-body-width` and `window-total-width` (why are there two functions, BTW?)
> report the width of the text area without "dividers, scrollbars, margins,
> fringes", but the line number display is still included.
Actually, window-total-width "includes the widths of WINDOW’s fringes,
margins, scroll bars and its right divider, if any."
Steve Berman
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: width of line numbers
2020-12-22 10:12 ` Stephen Berman
@ 2020-12-22 10:45 ` Joost Kremers
2020-12-22 15:57 ` Eli Zaretskii
1 sibling, 0 replies; 6+ messages in thread
From: Joost Kremers @ 2020-12-22 10:45 UTC (permalink / raw)
To: Stephen Berman; +Cc: help-gnu-emacs, gnu-emacs-help
On Tue, Dec 22 2020, Stephen Berman wrote:
> On Tue, 22 Dec 2020 10:23:26 +0100 Joost Kremers <joostkremers@fastmail.fm> wrote:
>
>> Hi all,
>>
>> I was wondering if there's a way to find out the width of the current line
>> number display (with `display-line-number-mode`, not `linum-mode`).
>
> (line-number-display-width)
Oh boy, this topic was covered extensively a while ago... I searched for
functions starting with `display-line-numbers`...
Thanks!
--
Joost Kremers
Life has its moments
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: width of line numbers
2020-12-22 10:06 ` Emanuel Berg via Users list for the GNU Emacs text editor
@ 2020-12-22 10:46 ` Joost Kremers
0 siblings, 0 replies; 6+ messages in thread
From: Joost Kremers @ 2020-12-22 10:46 UTC (permalink / raw)
To: Emanuel Berg; +Cc: help-gnu-emacs
On Tue, Dec 22 2020, Emanuel Berg via Users list for the GNU Emacs text editor wrote:
>> `window-body-width` and `window-total-width` (why are there
>> two functions, BTW?)
>
> Two functions? What about `window-width'? :P
Well, at least `window-width` is just an alias for `window-body-width`. The
other two are separate functions.
--
Joost Kremers
Life has its moments
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: width of line numbers
2020-12-22 10:12 ` Stephen Berman
2020-12-22 10:45 ` Joost Kremers
@ 2020-12-22 15:57 ` Eli Zaretskii
1 sibling, 0 replies; 6+ messages in thread
From: Eli Zaretskii @ 2020-12-22 15:57 UTC (permalink / raw)
To: Stephen Berman; +Cc: joostkremers, gnu-emacs-help
> From: Stephen Berman <stephen.berman@gmx.net>
> Date: Tue, 22 Dec 2020 11:12:14 +0100
> Cc: gnu-emacs-help@gnu.org
>
> This should do it:
>
> (- (window-body-width) (line-number-display-width))
I suggest
(- (window-body-width) (line-number-display-width 'columns))
^^^^^^^^
to make sure you don't subtract apples from oranges...
^ permalink raw reply [flat|nested] 6+ messages in thread
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2020-12-22 9:23 width of line numbers Joost Kremers
2020-12-22 10:06 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-12-22 10:46 ` Joost Kremers
2020-12-22 10:12 ` Stephen Berman
2020-12-22 10:45 ` Joost Kremers
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