From: Eli Zaretskii <eliz@gnu.org>
To: Yuri Khan <yuri.v.khan@gmail.com>
Cc: 26920-done@debbugs.gnu.org
Subject: bug#26920:
Date: Sun, 14 May 2017 17:26:01 +0300 [thread overview]
Message-ID: <831srr8qh2.fsf@gnu.org> (raw)
In-Reply-To: <CAP_d_8XHncobeGKMQrV7m4QgTagM-Xyw2YEEKgp9X4G-9ZgosQ@mail.gmail.com> (message from Yuri Khan on Sun, 14 May 2017 15:45:04 +0700)
> From: Yuri Khan <yuri.v.khan@gmail.com>
> Date: Sun, 14 May 2017 15:45:04 +0700
>
> $ emacs -Q
>
> Observed behavior: *scratch* buffer with two comment lines.
>
> (set-face-attribute 'font-lock-comment-face nil
> :box (:line-width -10 :color "yellow")) ^J
> nil
>
> Observed behavior: The text in the two comment lines moves 10px to the
> right, indicating that vertical lines of the box are drawn outside
> character area.
>
> Documented behavior — (info "(elisp) Face Attributes"), emphasis mine:
>
> A negative width -N means to draw a line of width N
> that occupies the space of the underlying text,
> thus avoiding any increase in the character height **or width**.
>
> Documented behavior — (describe-function 'set-face-attribute):
>
> If WIDTH is negative, the absolute value is the width
> of the lines, and draw **top/bottom lines**
> inside the characters area, not around it.
>
> So, function documentation is accurate while Info text is technically
> accurate but misleading (the character widths do not change, but the
> total width of the run of text does).
Thanks, fixed.
prev parent reply other threads:[~2017-05-14 14:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-14 8:45 bug#26920: Yuri Khan
2017-05-14 14:26 ` Eli Zaretskii [this message]
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