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Re: Suggestion: A fringe indicator that shows the last/first line before
From: |
David De La Harpe Golden |
Subject: |
Re: Suggestion: A fringe indicator that shows the last/first line before scrolling |
Date: |
Fri, 29 Feb 2008 17:57:14 +0000 |
On 29/02/2008, Stefan Monnier <address@hidden> wrote:
> Not really. It just means it will only work 99%.
>
Quite different 99% approach sketched below, uses our old friend the
idle timer, to show the window position in the fringe with a 2 sec
lag. Works better than I expected.
I think I'm not quite getting something though: why are fringe marks
"replacing" display properties (i.e. if a character pos has a fringe
display property, the character isn't displayed)? - that leads to my
use of before and after string properties. I wanted to hide the
fringe marks conditionally while they align with the real window-start
and window-end (they're not useful then), but because the fringe marks
are "replacing", the magic "when" conditional display property is
unsuitable for that. If before/after-string properties supported
"when" or fringe marks weren't "replacing" display properties....
(defface window-pos-fringe
'((t (:foreground "cyan")))
"Window pos fringe face"
:group 'scrolling)
(defvar show-old-window-pos-overlay
(make-overlay (window-start) (window-end)))
(overlay-put show-old-window-pos-overlay 'before-string
(concat
(propertize "[" 'display
(list 'left-fringe 'top-left-angle
'window-pos-fringe))
(propertize "[" 'display
(list 'right-fringe 'top-right-angle
'window-pos-fringe))))
(overlay-put show-old-window-pos-overlay 'after-string
(concat
(propertize "]" 'display
(list 'left-fringe 'bottom-left-angle
'window-pos-fringe))
(propertize "]" 'display
(list 'right-fringe
'bottom-right-angle
'window-pos-fringe))))
(defun update-window-pos-overlay ()
(move-overlay show-old-window-pos-overlay
(window-start)
(- (window-end) 1)
(window-buffer))
(redisplay))
(run-with-idle-timer 2 t 'update-window-pos-overlay)
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, (continued)
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Lennart Borgman (gmail), 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Lennart Borgman (gmail), 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Lennart Borgman (gmail), 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Stefan Monnier, 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Stefan Monnier, 2008/02/28
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling,
David De La Harpe Golden <=
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Lennart Borgman (gmail), 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Lennart Borgman (gmail), 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Lennart Borgman (gmail), 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, David De La Harpe Golden, 2008/02/29
- Re: Suggestion: A fringe indicator that shows the last/first line before scrolling, Miles Bader, 2008/02/29