[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#2541: 23.0.91; doc-view: unexpected scrolling after returning to tex
From: |
Tassilo Horn |
Subject: |
bug#2541: 23.0.91; doc-view: unexpected scrolling after returning to text mode |
Date: |
Tue, 11 Jan 2011 22:13:13 +0100 |
User-agent: |
Gnus/5.110011 (No Gnus v0.11) Emacs/24.0.50 (gnu/linux) |
Markus Triska <markus.triska@gmx.at> writes:
> Given p.ps from:
>
> http://www.logic.at/prolog/p.ps
>
> when I do:
>
> 1) $ emacs -Q p.ps
>
> 2) M-: (setq doc-view-ghostscript-options (list "-dSAFER" "-dNOPAUSE"
> "-sDEVICE=png16m" "-dTextAlphaBits=4" "-dBATCH" "-dGraphicsAlphaBits=4"
> "-dQUIET" "-dEPSCrop")) RET
>
> 3) C-u - 1 M-r C-c C-c C-v C-c C-c
>
> then (as expected) doc-view returns to text mode, and point is on the
> same position where it was before entering graphics mode. When I then
> press C-p repeatedly, instead of moving point to the previous line,
> the text is unexpectedly scrolled down without moving point.
I can reproduce that (even without step 2) using
GNU Emacs 24.0.50.1 (x86_64-pc-linux-gnu) of 2011-01-11 on thinkpad
However, C-p is bound to `previous-line' as usual in that context.
After edebugging a bit, I found that the reasion is that in
--8<---------------cut here---------------start------------->8---
(defun line-move (arg &optional noerror to-end try-vscroll)
(unless (and auto-window-vscroll try-vscroll
;; Only vscroll for single line moves
(= (abs arg) 1)
;; But don't vscroll in a keyboard macro.
(not defining-kbd-macro)
(not executing-kbd-macro)
(line-move-partial arg noerror to-end))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
(set-window-vscroll nil 0 t)
(if line-move-visual
(line-move-visual arg noerror)
(line-move-1 arg noerror to-end))))
--8<---------------cut here---------------end--------------->8---
the underlined call scrolls one line and returns some integer in that
context. That makes the and clause return non-nil, and so the unless
body is not executed. I don't know this part of emacs, so I don't know
how to fix the issue...
But I don't think that has something to do with doc-view.
Bye,
Tassilo
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- bug#2541: 23.0.91; doc-view: unexpected scrolling after returning to text mode,
Tassilo Horn <=