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bug#54862: 28.1; window-text-pixel-size sometimes fails to report accura
From: |
Lars Ingebrigtsen |
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 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
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