From: Eli Zaretskii <eliz@gnu.org>
To: Po Lu <luangruo@yahoo.com>
Cc: 52142@debbugs.gnu.org
Subject: bug#52142: 28.0.60; `posn-object-width-height' does not reflect actual dimensions of object when confronted by display string
Date: Sat, 27 Nov 2021 14:32:42 +0200 [thread overview]
Message-ID: <83ee71zslx.fsf@gnu.org> (raw)
In-Reply-To: <87v90dajvy.fsf@yahoo.com> (bug-gnu-emacs@gnu.org)
tags 52142 notabug
thanks
> Date: Sat, 27 Nov 2021 20:00:17 +0800
> From: Po Lu via "Bug reports for GNU Emacs,
> the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>
> In Emacs -Q, run M-x report-emacs-bug RET, move point to the message
> intended for novices (This bug report will be sent to the Bug-GNU-Emacs
> mailing list ...), and then evaluate (posn-at-point) there.
>
> The posn-object of the position list will be the display string
> containing the entire message, but the posn-object-width-height will
> contain the dimensions of the first character of the message, in this
> case "T".
That's a feature. Maybe it isn't documented clearly enough, but
basically as long as there's a character displayed at that position,
WIDTH and HEIGHT give the dimensions of that character's glyph on
display.
Remember: this stuff was originally designed for mouse clicks, where
it's important to know what did you click on.
next prev parent reply other threads:[~2021-11-27 12:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87v90dajvy.fsf.ref@yahoo.com>
2021-11-27 12:00 ` bug#52142: 28.0.60; `posn-object-width-height' does not reflect actual dimensions of object when confronted by display string Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-27 12:32 ` Eli Zaretskii [this message]
2021-11-27 12:47 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-27 13:03 ` Eli Zaretskii
2021-11-27 13:12 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-27 13:27 ` Eli Zaretskii
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