From: Lars Ingebrigtsen <larsi@gnus.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: antoine.levitt@gmail.com, 8355@debbugs.gnu.org
Subject: bug#8355: 24.0.50; Boxes in mode-line and scrolling
Date: Wed, 09 Dec 2020 18:24:35 +0100 [thread overview]
Message-ID: <87czziyjsc.fsf@gnus.org> (raw)
In-Reply-To: <835z5a6gyf.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 09 Dec 2020 19:13:12 +0200")
[-- Attachment #1: Type: text/plain, Size: 812 bytes --]
Eli Zaretskii <eliz@gnu.org> writes:
> Yes, please.
This one should illustrate the problem, I think:
(defun make-buffer ()
(switch-to-buffer "*images*")
(erase-buffer)
(let ((height (* (frame-pixel-height) 0.6))
(width (* (frame-pixel-width) 0.7)))
(dotimes (i 10)
(let ((svg (svg-create width height)))
(svg-rectangle svg 0 0 width height
:fill (format "#%02x%02x%02x"
(random 255)
(random 255)
(random 255)))
(svg-text svg (format "Image %d" i)
:font-size 50
:fill "black"
:font-weight "bold"
:x (/ width 2)
:y (/ height 2)
:text-anchor "middle")
(insert-image (svg-image svg :scale 1))
(insert (format "\n\nImage %d\n\n" i))))))
Scroll downwards to the test "Image 4", for instance. This is what I
have in my window then:
[-- Attachment #2: Type: image/png, Size: 36305 bytes --]
[-- Attachment #3: Type: text/plain, Size: 95 bytes --]
So we see the entirety of Image 4, and the top of Image 5, and that's
fine. Then hit `M-v':
[-- Attachment #4: Type: image/png, Size: 38280 bytes --]
[-- Attachment #5: Type: text/plain, Size: 171 bytes --]
We see the entirety of image 2, and the top of image 3, which seems like
we've overshot -- I'd expect to see the entirety of image 3, and the top
of image 4.
Then C-v:
[-- Attachment #6: Type: image/png, Size: 36600 bytes --]
[-- Attachment #7: Type: text/plain, Size: 400 bytes --]
We're not back to where we started, but instead have the entirety of
image 3, and the top of image 4 (which is what I'd expect when C-v-ing
from where I was).
So I think Emacs behaves very nicely when C-v-ing down a buffer of large
images, but when M-v-ing back up, it seems to scroll too far.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2020-12-09 17:24 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-27 13:41 bug#8355: 24.0.50; Boxes in mode-line and scrolling Antoine Levitt
2020-12-08 15:05 ` Lars Ingebrigtsen
2020-12-08 15:56 ` Antoine Levitt
2020-12-08 18:18 ` Lars Ingebrigtsen
2020-12-08 18:29 ` Eli Zaretskii
2020-12-08 18:19 ` Eli Zaretskii
2020-12-08 18:27 ` Lars Ingebrigtsen
2020-12-08 18:33 ` Eli Zaretskii
2020-12-09 16:17 ` Eli Zaretskii
2020-12-09 17:01 ` Lars Ingebrigtsen
2020-12-09 17:13 ` Eli Zaretskii
2020-12-09 17:24 ` Lars Ingebrigtsen [this message]
2020-12-09 20:47 ` Antoine Levitt
2020-12-10 3:34 ` Eli Zaretskii
2020-12-11 8:35 ` Antoine Levitt
2020-12-11 8:47 ` Eli Zaretskii
2020-12-11 9:08 ` Antoine Levitt
2020-12-11 11:59 ` Eli Zaretskii
2020-12-11 12:25 ` Antoine Levitt
2020-12-14 18:25 ` Eli Zaretskii
2020-12-14 19:02 ` Antoine Levitt
2020-12-14 19:27 ` Eli Zaretskii
2020-12-14 18:26 ` Eli Zaretskii
2020-12-14 19:05 ` Lars Ingebrigtsen
2020-12-14 19:30 ` Eli Zaretskii
2020-12-15 5:23 ` Lars Ingebrigtsen
2021-01-20 17:09 ` Lars Ingebrigtsen
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