GNU bug report logs - #52118
29.0.50; string-pixel-width reports incorrect width

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Package: emacs;

Reported by: Arthur Miller <arthur.miller <at> live.com>

Date: Fri, 26 Nov 2021 00:53:02 UTC

Severity: normal

Tags: moreinfo

Found in version 29.0.50

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#52118; Package emacs. (Fri, 26 Nov 2021 00:53:02 GMT) Full text and rfc822 format available.

Acknowledgement sent to Arthur Miller <arthur.miller <at> live.com>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Fri, 26 Nov 2021 00:53:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Arthur Miller <arthur.miller <at> live.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.50; string-pixel-width reports incorrect width
Date: Fri, 26 Nov 2021 01:51:45 +0100
[Message part 1 (text/plain, inline)]
Attached is small lisp program and a screenshot of the output. From the
screenshot itself it is visible that for string with large non-default font-size
the reported width is erroneous. It should be close to frame/window size
in this particular example, but reported size is missing ~500 pixels.

For small sizes it seems to report relatively ok. The clock is ~70 pixels
according to Gimp's measure tool, +/- some, so it is more visible with big sizes.

[string-pixel-width.png (image/png, attachment)]
[emacs-vision-clock.el (text/plain, attachment)]
[Message part 4 (text/plain, inline)]









In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.17.4)
 of 2021-11-17 built on pascal
Repository revision: 1ddebefc9fe178e9e8b4275a45e0eda1bcf7848e
Repository branch: alpha-patch
Windowing system distributor 'The X.Org Foundation', version 11.0.12101001
System Description: Arch Linux

Configured using:
 'configure --with-native-compilation 'CFLAGS=-O2 -march=native -mtune=native''

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBOTF LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY
PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS WEBP X11 XDBE
XIM XPM GTK3 ZLIB

Important settings:
  value of $LANG: sv_SE.UTF-8
  locale-coding-system: utf-8-unix

Major mode: ELisp/l

Minor modes in effect:
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  auto-insert-mode: t
  display-time-mode: t
  delete-selection-mode: t
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  which-key-mode: t
  wrap-region-global-mode: t
  wrap-region-mode: t
  helm-mode: t
  helm-adaptive-mode: t
  shell-dirtrack-mode: t
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  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
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  line-number-mode: t
  auto-fill-function: yas--auto-fill
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Memory information:

Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#52118; Package emacs. (Fri, 26 Nov 2021 13:42:01 GMT) Full text and rfc822 format available.

Message #8 received at 52118 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Arthur Miller <arthur.miller <at> live.com>
Cc: 52118 <at> debbugs.gnu.org
Subject: Re: bug#52118: 29.0.50; string-pixel-width reports incorrect width
Date: Fri, 26 Nov 2021 14:41:45 +0100
Arthur Miller <arthur.miller <at> live.com> writes:

> Attached is small lisp program and a screenshot of the output. From the
> screenshot itself it is visible that for string with large non-default font-size
> the reported width is erroneous. It should be close to frame/window size
> in this particular example, but reported size is missing ~500 pixels.

Seems to be working OK for me:

(string-pixel-width
 (propertize "foo" 'face '(:height 500 :background "red")))
=> 300

(string-pixel-width
 (propertize "foo" 'face '(:height 5000 :background "red")))
=> 2997

But you seem to be using an old version, and not from the Emacs repo?

In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.17.4)
 of 2021-11-17 built on pascal
Repository revision: 1ddebefc9fe178e9e8b4275a45e0eda1bcf7848e
Repository branch: alpha-patch

`string-pixel-width' was rewritten recently.  Could you try a fresh
checkout and see whether the problem is still present?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no




Added tag(s) moreinfo. Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Fri, 26 Nov 2021 13:43:02 GMT) Full text and rfc822 format available.

Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#52118; Package emacs. (Fri, 26 Nov 2021 13:47:01 GMT) Full text and rfc822 format available.

Message #13 received at 52118 <at> debbugs.gnu.org (full text, mbox):

From: Arthur Miller <arthur.miller <at> live.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 52118 <at> debbugs.gnu.org
Subject: Re: bug#52118: 29.0.50; string-pixel-width reports incorrect width
Date: Fri, 26 Nov 2021 14:46:21 +0100
Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> Arthur Miller <arthur.miller <at> live.com> writes:
>
>> Attached is small lisp program and a screenshot of the output. From the
>> screenshot itself it is visible that for string with large non-default font-size
>> the reported width is erroneous. It should be close to frame/window size
>> in this particular example, but reported size is missing ~500 pixels.
>
> Seems to be working OK for me:
>
> (string-pixel-width
>  (propertize "foo" 'face '(:height 500 :background "red")))
> => 300
>
> (string-pixel-width
>  (propertize "foo" 'face '(:height 5000 :background "red")))
> => 2997
>
> But you seem to be using an old version, and not from the Emacs repo?
>
> In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.17.4)
>  of 2021-11-17 built on pascal
> Repository revision: 1ddebefc9fe178e9e8b4275a45e0eda1bcf7848e
> Repository branch: alpha-patch

:) Yes, like a week old :).

> `string-pixel-width' was rewritten recently.  Could you try a fresh
> checkout and see whether the problem is still present?

Allright. I haven't had time to pull and rebuild; I'll try and come back when I
rebuild it.

Thanks for the info.




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#52118; Package emacs. (Fri, 26 Nov 2021 13:49:02 GMT) Full text and rfc822 format available.

Message #16 received at 52118 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Arthur Miller <arthur.miller <at> live.com>
Cc: 52118 <at> debbugs.gnu.org
Subject: Re: bug#52118: 29.0.50; string-pixel-width reports incorrect width
Date: Fri, 26 Nov 2021 14:47:51 +0100
Arthur Miller <arthur.miller <at> live.com> writes:

> :) Yes, like a week old :).

That's like a decade in vim development years.  😀

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#52118; Package emacs. (Fri, 26 Nov 2021 14:37:01 GMT) Full text and rfc822 format available.

Message #19 received at 52118 <at> debbugs.gnu.org (full text, mbox):

From: Arthur Miller <arthur.miller <at> live.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 52118 <at> debbugs.gnu.org
Subject: Re: bug#52118: 29.0.50; string-pixel-width reports incorrect width
Date: Fri, 26 Nov 2021 15:36:24 +0100
[Message part 1 (text/plain, inline)]
Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> Arthur Miller <arthur.miller <at> live.com> writes:
>
>> :) Yes, like a week old :).
>
> That's like a decade in vim development years.  😀

Indeed; I should have known better before reporting a bug :).

Seems it works well.

Hopefully I can align two string to center now, without doing entire calculus in
custom code.

[string-width-rebuild.png (image/png, attachment)]

Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#52118; Package emacs. (Fri, 26 Nov 2021 16:19:02 GMT) Full text and rfc822 format available.

Message #22 received at 52118 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Arthur Miller <arthur.miller <at> live.com>
Cc: 52118 <at> debbugs.gnu.org
Subject: Re: bug#52118: 29.0.50; string-pixel-width reports incorrect width
Date: Fri, 26 Nov 2021 17:17:50 +0100
Arthur Miller <arthur.miller <at> live.com> writes:

> Indeed; I should have known better before reporting a bug :).
>
> Seems it works well.

Thanks for checking; I'm closing this bug report, then.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no




bug marked as fixed in version 29.1, send any further explanations to 52118 <at> debbugs.gnu.org and Arthur Miller <arthur.miller <at> live.com> Request was from Lars Ingebrigtsen <larsi <at> gnus.org> to control <at> debbugs.gnu.org. (Fri, 26 Nov 2021 16:19:02 GMT) Full text and rfc822 format available.

bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Sat, 25 Dec 2021 12:24:05 GMT) Full text and rfc822 format available.

This bug report was last modified 2 years and 84 days ago.

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