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bug#65899: 30.0.50; window-text-pixel-size sometimes fails to report acc
From: |
Eli Zaretskii |
Subject: |
bug#65899: 30.0.50; window-text-pixel-size sometimes fails to report accurate pixel-width |
Date: |
Thu, 14 Sep 2023 12:53:55 +0300 |
> From: Markus Triska <triska@metalevel.at>
> Date: Wed, 13 Sep 2023 00:09:35 +0200
>
>
> The following slight variation of the previously filed issue #54862 also
> yields a wrong result of window-text-pixel-size.
>
> To reproduce the issue, please invoke Emacs with:
>
> $ emacs -Q
>
> and then evaluate the following form:
>
> (let ((width 20))
> (= width (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 "\n")
> (insert-image `(image :type pbm
> :data ,"P1\n1 10\n1111111111"
> :ascent center) "t")
> (let ((from (point)))
> (insert-image `(image :type pbm :data ,data :ascent
> center) "t")
> (car (window-text-pixel-size nil from (point)))))))
>
> The expected result, obtained for example in Emacs 26.1, is: t.
>
> With Emacs 30.0.50, I instead unexpectedly get: nil.
Thanks, should be fixed now on the emacs-29 release branch.