From: "Jan D." <jan.h.d@swipnet.se>
Cc: emacs-devel@gnu.org
Subject: Re: Emacs GTK scroll-bar flickering
Date: Thu, 27 Mar 2003 19:06:25 +0100 (CET) [thread overview]
Message-ID: <200303271910.h2RJAdbL026412@stubby.bodenonline.com> (raw)
In-Reply-To: <buou1dpa9ip.fsf@mcspd15.ucom.lsi.nec.co.jp> "from Miles Bader at Mar 27, 2003 10:22:22 am"
> "Jan D." <jan.h.d@swipnet.se> writes:
> > It turns out that since the container widget Emacs uses isn't double
> > buffered, all the children (scroll bars) does not get double buffering
> > either.
> >
> > I have checked in a fix for this (actually a couple a days ago, but it was
> > incomplete), hopefully it finally fixes this problem (hey, one can hope :-).
>
> Yes, this seems to have fixed the flickering problem completely
> (there are still some rough updates when the emacs window configuration
> changes, but that's a relatively rare event, and I guess this sort of
> thing is probably never going to be perfect, given that GTK is somewhat
> bolted onto emacs).
There are some issues I know about, for example the tool bar does not behave
at startup. There are more redraws of GTK widgets than what is optimal.
> BTW, I find that I can get better scrolling behavior with emacs/GTK if I
> set `redisplay-dont-pause' to t -- otherwise, if I e.g., hold down a
> scroll key (say C-v), scrolling updates the scroll bar smoothly, but the
> text window only gets updated when I stop scrolling. Any comment on
> this? [My processor seems to be fast enough to keep up when
> redisplay-dont-pause is t]
It must be that the redisplay code decided to delay the redisplay
because of other input (keys or X events).
I can hardly see any difference when I set redisplay-dont-pause to t
but I imagine redisplay-dont-pause fills the same job as "smooth-scroll"
in xterm. In that case what you see is the intended behaviour, less
redisplay to use less CPU-time.
Jan D.
next prev parent reply other threads:[~2003-03-27 18:06 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-14 5:39 Emacs GTK scroll-bar flickering Miles Bader
2003-03-14 10:19 ` Kai Großjohann
2003-03-14 11:52 ` Andreas Schwab
2003-03-14 12:44 ` Kai Großjohann
2003-03-14 13:35 ` Miles Bader
2003-03-14 18:46 ` Jan D.
2003-03-14 20:04 ` Stefan Monnier
2003-03-14 20:35 ` Jan D.
2003-03-17 5:58 ` Miles Bader
2003-03-17 23:26 ` Jan D.
2003-03-18 1:33 ` Miles Bader
2003-03-18 5:39 ` Jan D.
2003-03-18 6:15 ` Miles Bader
2003-03-18 6:44 ` Luc Teirlinck
2003-03-18 6:54 ` Miles Bader
2003-03-18 7:05 ` Luc Teirlinck
2003-03-18 7:56 ` Miles Bader
2003-03-18 8:09 ` Miles Bader
2003-03-19 8:48 ` Richard Stallman
2003-03-18 22:15 ` Jan D.
2003-03-18 22:42 ` Kevin Rodgers
2003-03-19 6:05 ` Jan D.
2003-03-18 23:28 ` Miles Bader
2003-03-19 1:07 ` Kim F. Storm
2003-03-19 1:26 ` Miles Bader
2003-03-19 22:27 ` Jan D.
2003-03-20 1:19 ` Miles Bader
2003-03-21 19:06 ` Richard Stallman
2003-03-26 18:17 ` Jan D.
2003-03-27 1:22 ` Miles Bader
2003-03-27 6:54 ` Miles Bader
2003-03-27 22:12 ` Richard Stallman
2003-03-28 1:29 ` Miles Bader
2003-03-29 18:38 ` Richard Stallman
2003-03-27 18:06 ` Jan D. [this message]
2003-03-27 19:04 ` Richard Stallman
2003-03-20 8:45 ` Richard Stallman
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