bug#54862: closed (28.1; window-text-pixel-size sometimes fails to report accurate pixel-width)

[GNU bug Tracking System]

Your message dated Tue, 26 Apr 2022 15:04:35 +0300
with message-id <831qxkm4oc.fsf@gnu.org>
and subject line Re: bug#54862: 28.1; window-text-pixel-size sometimes fails to 
report accurate pixel-width
has caused the debbugs.gnu.org bug report #54862,
regarding 28.1; window-text-pixel-size sometimes fails to report accurate 
pixel-width
to be marked as done.

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-- 
54862: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=54862
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> --- Begin Message ---
>
>
>
> Subject: 
>
> 28.1; window-text-pixel-size sometimes fails to report accurate pixel-width
>
>
>
>
> Date: 
>
> Mon, 11 Apr 2022 20:48:03 +0200
>
>
>
>
> To reproduce this regression, 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 " ")
>                  (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 and 27.1, is: t.
>
> Whereas with Emacs 28.1, evaluating the form unexpectedly yields: nil.
>
> If possible, could you please restore the previous behaviour?
>
> Thank you and all the best,
> Markus
>
> In GNU Emacs 28.1 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 
> 1.16.0, Xaw scroll bars)
>  of 2022-04-11 built on debian
> Windowing system distributor 'The X.Org Foundation', version 11.0.12004000
> System Description: Debian
>
> Configured using:
>  'configure --with-gif=ifavailable --with-tiff=ifavailable
>  --with-gnutls=ifavailable'
>
> Configured features:
> CAIRO FREETYPE GLIB GMP GSETTINGS JPEG LIBSELINUX LIBXML2 MODULES NOTIFY
> INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TOOLKIT_SCROLL_BARS X11
> XDBE XIM XPM LUCID ZLIB
>
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#54862: 28.1; window-text-pixel-size sometimes fails to report accurate pixel-width
>
>
>
>
> Date: 
>
> Tue, 26 Apr 2022 15:04:35 +0300
>
>
>
>
> > Date: Tue, 12 Apr 2022 17:21:32 +0300
> > From: Eli Zaretskii <eliz@gnu.org>
> > Cc: 54862@debbugs.gnu.org
> > 
> > > From: Markus Triska <triska@metalevel.at>
> > > Date: Mon, 11 Apr 2022 20:48:03 +0200
> > > 
> > > 
> > > To reproduce this regression, 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 " ")
> > >                  (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 and 27.1, is: t.
> > > 
> > > Whereas with Emacs 28.1, evaluating the form unexpectedly yields: nil.
> > 
> > Thanks, should be fixed now on the release branch and on master.
>
> No further comments for 2 weeks, so I'm boldly marking this bug done.
>
>
> --- End Message ---