GNU bug report logs - #59065
28.2; Mapping default face affects extended faces

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#59065: closed (28.2; Mapping default face affects extended faces)
Date: Sat, 12 Nov 2022 12:45:02 +0000

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Your message dated Sat, 12 Nov 2022 14:44:38 +0200
with message-id <83zgcwmjex.fsf <at> gnu.org>
and subject line Re: bug#59065: 28.2; Mapping default face affects extended faces
has caused the debbugs.gnu.org bug report #59065,
regarding 28.2; Mapping default face affects extended faces
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
59065: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=59065
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Contact help-debbugs <at> gnu.org with problems

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From: Al Haji-Ali <abdo.haji.ali <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.2; Mapping default face affects extended faces
Date: Sun, 06 Nov 2022 01:13:23 +0000

I'll admit this "bug" is a convoluted one. I am noticing a weird behaviour where extended background colour to the whole window instead of a single line when a face a remapped.

To re-produce an example:

0. Run `emacs -Q`

1. Create a buffer with this content and ensure `org-mode` is on
------------------------------------------------------------
* One
#+begin_src emacs-lisp
#+end_src
* Two
#+begin_src emacs-lisp
#+end_src
------------------------------------------------------------

2. Call `org-narrow-to-subtree` on "One".

3. Change the face `org-block-end-line` to have an extended background on the end-line of the org-block

(set-face-attribute
   'org-block-end-line nil
   :extend t
   :background "#4e5079")

4. Create a any font remap like this trivial one

(face-remap-add-relative 'default 'default)

or even this one

(face-remap-add-relative
        'default
        '(:filtered (:window not-real-filter t) not-real-face)

5. Notice how the background colour on the last line of the narrowed buffer extends over the whole window instead of just the line.

Best regards,
-- Al

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From: Eli Zaretskii <eliz <at> gnu.org>
To: abdo.haji.ali <at> gmail.com
Cc: 59065-done <at> debbugs.gnu.org
Subject: Re: bug#59065: 28.2; Mapping default face affects extended faces
Date: Sat, 12 Nov 2022 14:44:38 +0200

> Cc: 59065 <at> debbugs.gnu.org
> Date: Sun, 06 Nov 2022 11:34:51 +0200
> From: Eli Zaretskii <eliz <at> gnu.org>
> 
> > From: Al Haji-Ali <abdo.haji.ali <at> gmail.com>
> > Date: Sun, 06 Nov 2022 01:13:23 +0000
> > 
> > 0. Run `emacs -Q`
> > 
> > 1. Create a buffer with this content and ensure `org-mode` is on
> > ------------------------------------------------------------
> > * One
> > #+begin_src emacs-lisp
> > #+end_src
> > * Two
> > #+begin_src emacs-lisp
> > #+end_src
> > ------------------------------------------------------------
> > 
> > 2. Call `org-narrow-to-subtree` on "One".
> > 
> > 3. Change the face `org-block-end-line` to have an extended background on the end-line of the org-block
> > 
> > (set-face-attribute
> >    'org-block-end-line nil
> >    :extend t
> >    :background "#4e5079")
> > 
> > 4. Create a any font remap like this trivial one
> > 
> > (face-remap-add-relative 'default 'default)
> > 
> > or even this one
> > 
> > (face-remap-add-relative
> >         'default
> >         '(:filtered (:window not-real-filter t) not-real-face)
> > 
> > 5. Notice how the background colour on the last line of the narrowed buffer extends over the whole window instead of just the line.
> 
> Thanks, should be fixed now (on the master branch).

No further comments, so I will assume the bug is indeed fixed, and
close the bug as fixed.

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