From: Lars Ingebrigtsen <larsi@gnus.org>
To: Markus Triska <triska@metalevel.at>
Cc: 54862@debbugs.gnu.org
Subject: bug#54862: 28.1; window-text-pixel-size sometimes fails to report accurate pixel-width
Date: Tue, 12 Apr 2022 12:35:01 +0200 [thread overview]
Message-ID: <87pmlmfv3e.fsf@gnus.org> (raw)
In-Reply-To: <m2h76za23g.fsf@metalevel.at> (Markus Triska's message of "Mon, 11 Apr 2022 20:48:03 +0200")
Markus Triska <triska@metalevel.at> writes:
> The expected result, obtained for example in Emacs 26.1 and 27.1, is: t.
>
> Whereas with Emacs 28.1, evaluating the form unexpectedly yields: nil.
Doing
M-: (window-text-pixel-size nil (line-beginning-position) (point))
after inserting the image into the buffer does give the correct results,
which might mean that this is display related? But putting in a sit-for
before the window-text-pixel-size still gives 0:
(let ((width 20))
(let* ((height (line-pixel-height))
(data (with-temp-buffer
(insert (format "P1\n%s %s\n" width height))
(dotimes (_ height)
(insert (make-string width ?1) "\n"))
(buffer-string))))
(insert " ")
(let ((from (point)))
(insert-image `(image :type pbm :data ,data :ascent center) "t")
(sit-for 1)
(car (window-text-pixel-size (selected-window) from (point))))))
Very odd.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2022-04-12 10:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-11 18:48 bug#54862: 28.1; window-text-pixel-size sometimes fails to report accurate pixel-width Markus Triska
2022-04-12 10:35 ` Lars Ingebrigtsen [this message]
2022-04-12 14:21 ` Eli Zaretskii
2022-04-26 12:04 ` Eli Zaretskii
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