bug#43272: closed (27.1; variable-pitch-mode misaligns org-mode heading tags)

[GNU bug Tracking System]

Your message dated Thu, 10 Sep 2020 07:41:22 +0200
with message-id <878sdi89z1.fsf@gnu.org>
and subject line Re: bug#43272: 27.1; variable-pitch-mode misaligns org-mode 
heading tags
has caused the debbugs.gnu.org bug report #43272,
regarding 27.1; variable-pitch-mode misaligns org-mode heading tags
to be marked as done.

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43272: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=43272
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--- Begin Message --- Subject: 27.1; variable-pitch-mode misaligns org-mode heading tags Date: Tue, 08 Sep 2020 13:13:04 +0300

1. Run 'emacs -Q'
2. Open a new Org file 'C-x C-f /tmp/test.org'
3. Insert the following contents:

* TODO this is a test                                                   :tag:
* TODO here is another test                                             :tag:

The tags should align to the right with the standard monospaced font.

4. Run 'M-x variable-pitch-mode'.
5. The tags are now misaligned.

Please see attached screenshots for the before and after states of the
'variable-pitch-mode' activation.

Running 'M-x describe-char' in the space between the heading's title and
the tag informs us that the space's face is the same as the heading's
(e.g. 'org-level-1').

I am also relaying the technical insight of Adam Spiers.  Please see
attached plain text document or visit the comment's URL:
https://gitlab.com/protesilaos/modus-themes/-/issues/85#note_407147422

Overview of my setup:

+ GNU Emacs 27.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.22,
  cairo version 1.17.3) of 2020-08-14

+ Org mode version 9.3 (release_9.3 @ /usr/share/emacs/27.1/lisp/org/)

--
Protesilaos Stavrou
protesilaos.com

variable-pitch-mode-org-headings-misaligned-1.png
Description: PNG image

variable-pitch-mode-org-headings-misaligned-2.png
Description: PNG image

adam-spiers-align-org-tags.txt
Description: Text document

--- End Message ---

> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#43272: 27.1; variable-pitch-mode misaligns org-mode heading tags
>
>
>
>
> Date: 
>
> Thu, 10 Sep 2020 07:41:22 +0200
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)
>
>
>
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > Maybe I'm missing something, but :align-to accepts values in pixels,
> > so in general you could put a display property on the separating
> > whitespace and request that the whitespace ends at a certain pixel
> > coordinate from the left; that coordinate could somehow be computed
> > from org-tags-column, for example by multiplying it by
> > frame-char-width.
>
> Thanks for the direction, I will try this.
>
> I'm closing this report, as this is not an Emacs bug and it will be
> discussed in Org's mailing list.
>
> -- 
>  Bastien
>
>
> --- End Message ---