* bug#39431: window-text-pixel-size behavior when enabled display-line-number-mode
@ 2020-02-05 8:05 tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-02-05 14:38 ` Eli Zaretskii
0 siblings, 1 reply; 4+ messages in thread
From: tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2020-02-05 8:05 UTC (permalink / raw)
To: 39431
Hi,
I found unexpected behavior (for me) of window-text-pixel-size.
Environment:
GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30,
cairo version 1.15.10)
Steps:
1. run emacs -Q.
2. In *scratch* buffer eval following.
(window-text-pixel-size nil (point-min) (1+ (point-min)))
;=> (9 . 18)
(display-line-numbers-mode)
;=> t
(window-text-pixel-size nil (point-min) (1+ (point-min)))
;=> (45 . 18) ; width changed
I also found this behavior in NS port Emacs 27.0.50.
Is this expected?
--
tsuucat
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#39431: window-text-pixel-size behavior when enabled display-line-number-mode
2020-02-05 8:05 bug#39431: window-text-pixel-size behavior when enabled display-line-number-mode tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors
@ 2020-02-05 14:38 ` Eli Zaretskii
2020-02-05 14:47 ` tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors
0 siblings, 1 reply; 4+ messages in thread
From: Eli Zaretskii @ 2020-02-05 14:38 UTC (permalink / raw)
To: tsuucat; +Cc: 39431
tags 39431 notabug
thanks
> Date: Wed, 5 Feb 2020 17:05:24 +0900
> From: tsuucat via "Bug reports for GNU Emacs,
> the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>
> 1. run emacs -Q.
> 2. In *scratch* buffer eval following.
> (window-text-pixel-size nil (point-min) (1+ (point-min)))
> ;=> (9 . 18)
> (display-line-numbers-mode)
> ;=> t
> (window-text-pixel-size nil (point-min) (1+ (point-min)))
> ;=> (45 . 18) ; width changed
>
> I also found this behavior in NS port Emacs 27.0.50.
>
> Is this expected?
Yes. The line-number display is part of the text area, and that's
what this function measures. You will see the same effect if you set
the variable line-prefix to some nonempty string, for example.
If you want the size of the text without the line numbers, you can
subtract the value returned by '(line-number-display-width t)'.
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#39431: window-text-pixel-size behavior when enabled display-line-number-mode
2020-02-05 14:38 ` Eli Zaretskii
@ 2020-02-05 14:47 ` tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-02-05 15:36 ` Eli Zaretskii
0 siblings, 1 reply; 4+ messages in thread
From: tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2020-02-05 14:47 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 39431
> Yes. The line-number display is part of the text area, and that's
> what this function measures. You will see the same effect if you set
> the variable line-prefix to some nonempty string, for example.
>
> If you want the size of the text without the line numbers, you can
> subtract the value returned by '(line-number-display-width t)'.
Oh, I see.
Thanks!
--
tsuucat
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#39431: window-text-pixel-size behavior when enabled display-line-number-mode
2020-02-05 14:47 ` tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors
@ 2020-02-05 15:36 ` Eli Zaretskii
0 siblings, 0 replies; 4+ messages in thread
From: Eli Zaretskii @ 2020-02-05 15:36 UTC (permalink / raw)
To: tsuucat; +Cc: 39431-done
> From: tsuucat <tsuucat@icloud.com>
> Date: Wed, 5 Feb 2020 23:47:26 +0900
> Cc: 39431@debbugs.gnu.org
>
> > Yes. The line-number display is part of the text area, and that's
> > what this function measures. You will see the same effect if you set
> > the variable line-prefix to some nonempty string, for example.
> >
> > If you want the size of the text without the line numbers, you can
> > subtract the value returned by '(line-number-display-width t)'.
>
> Oh, I see.
> Thanks!
Thanks, I'm therefore closing this bug report.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-02-05 15:36 UTC | newest]
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2020-02-05 8:05 bug#39431: window-text-pixel-size behavior when enabled display-line-number-mode tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-02-05 14:38 ` Eli Zaretskii
2020-02-05 14:47 ` tsuucat via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-02-05 15:36 ` Eli Zaretskii
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