From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: How to get the actual face attribute?
Date: Mon, 22 Jun 2020 21:47:33 +0300 [thread overview]
Message-ID: <83lfkfszsq.fsf@gnu.org> (raw)
In-Reply-To: <41A32155-634A-4D5A-A878-2F92E6761917@gmail.com> (message from Yuan Fu on Mon, 22 Jun 2020 13:21:15 -0400)
> From: Yuan Fu <casouri@gmail.com>
> Date: Mon, 22 Jun 2020 13:21:15 -0400
> Cc: help-gnu-emacs@gnu.org, Stefan Monnier <monnier@iro.umontreal.ca>
>
> I have a package that aligns org tables even for variable pitch text, CJK text, images, etc are in the table:
>
>
>
> Some one reported that when they change the text size with text-scale-adjust, the alignment are messed up. That’s because the package aligns by calculating the pixel width of each cell, and when the text size are adjusted that width is no accurate anymore. I’m using this function to calculate the width of a glyph (which adds up to the width of a cell):
>
> (let* ((p (or point (point))))
> (if (eq (char-after point) ?\t)
> (valign--tab-width (font-at p))
> ;; (font-at 0 nil (buffer-substring p (1+ p))) doesn’t work, the
> ;; font is sometimes wrong. (font-at p) doesn’t work, because
> ;; it requires the buffer to be visible.
> (aref (aref (font-get-glyphs (font-at p) p (1+ p)) 0) 4)))
Did you try using window-text-pixel-size?
next prev parent reply other threads:[~2020-06-22 18:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-21 4:01 How to get the actual face attribute? Yuan Fu
2020-06-21 14:52 ` Eli Zaretskii
2020-06-21 14:55 ` Yuan Fu
2020-06-21 15:03 ` Eli Zaretskii
2020-06-21 15:54 ` Stefan Monnier
2020-06-22 17:00 ` Yuan Fu
2020-06-22 17:15 ` Perry Smith
2020-06-22 17:21 ` Yuan Fu
2020-06-22 18:47 ` Eli Zaretskii [this message]
2020-06-22 19:07 ` Yuan Fu
2020-06-22 18:56 ` Stefan Monnier
2020-06-22 19:10 ` Yuan Fu
2020-06-22 19:49 ` Stefan Monnier
2020-06-22 19:54 ` Yuan Fu
2020-06-22 21:05 ` Stefan Monnier
2020-06-22 21:14 ` Emacs hackers all around the world (was: Re: How to get the actual face attribute?) Emanuel Berg via Users list for the GNU Emacs text editor
2020-06-24 4:13 ` How to get the actual face attribute? Yuan Fu
2020-06-22 21:27 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-06-24 4:12 ` Yuan Fu
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