From: Eli Zaretskii <eliz@gnu.org>
To: Tak Kunihiro <tkk@misasa.okayama-u.ac.jp>
Cc: emacs-devel@gnu.org
Subject: Re: line-pixel-height beyond eol
Date: Tue, 12 Sep 2017 18:13:40 +0300 [thread overview]
Message-ID: <83a820q7a3.fsf@gnu.org> (raw)
In-Reply-To: <0963B695-945E-4DFD-8703-BCCB4562480F@misasa.okayama-u.ac.jp> (message from Tak Kunihiro on Tue, 12 Sep 2017 19:12:23 +0900)
> From: Tak Kunihiro <tkk@misasa.okayama-u.ac.jp>
> Date: Tue, 12 Sep 2017 19:12:23 +0900
> Cc: Kunihiro Tak <tkk@misasa.okayama-u.ac.jp>
>
> I want to scroll pixel-wise with auto-hscroll-mode off.
>
> When auto-hscroll-mode is nil, `hollow’ cursor can go over the end
> of line with an inline image. As soon as the image is scrolled out to
> the left, on display, height of line shrinks to frame-char-height.
The display engine only renders what's on the screen.
> Since point is on the line, the function `line-pixel-height’ returns
> height of image instead of that of text.
Correct. line-pixel-height is not documented to depend on what is
displayed on the screen, it reports the dimensions of the line as a
whole.
> Is there a way to obtain the height in pixels of the line at the `hollow’
> point in the selected window? Or is there a way to maintain the height of
> a line even when an image is horizontally scrolled out?
I don't think I understand what value you want to obtain. Can you
elaborate, and perhaps also explain what do you want to do with that
value and why?
next prev parent reply other threads:[~2017-09-12 15:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-12 10:12 line-pixel-height beyond eol Tak Kunihiro
2017-09-12 15:13 ` Eli Zaretskii [this message]
2017-09-13 0:24 ` Tak Kunihiro
2017-09-13 15:28 ` Eli Zaretskii
2017-09-13 23:14 ` Tak Kunihiro
2017-09-14 17:53 ` Eli Zaretskii
2017-09-15 1:39 ` Tak Kunihiro
2017-09-15 17:35 ` Eli Zaretskii
2017-09-23 12:57 ` Tak Kunihiro
2017-09-23 13:16 ` Eli Zaretskii
2017-10-05 9:50 ` Tak Kunihiro
2017-10-09 13:31 ` Eli Zaretskii
2017-10-16 5:13 ` Tak Kunihiro
2017-10-16 16:16 ` Eli Zaretskii
2017-10-17 0:29 ` Tak Kunihiro
2017-10-17 16:37 ` Eli Zaretskii
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