From: joakim@verona.se
To: Emacs developers <emacs-devel@gnu.org>
Subject: inhibiting x_scroll_run for a window?
Date: Fri, 10 Sep 2010 12:07:37 +0200 [thread overview]
Message-ID: <m3lj7952ty.fsf@verona.se> (raw)
I spent a little time on the xwidget branch, and noticed that sometimes
widgets get "stuck" on a coordinate when scrolling. This only happens
sometimes.
I think this is because Emacs sometimes decide to scroll the window by
blitting rather than redrawing. I would like to understand how to get
more control over scrolling.
- is it possible to disable blit-scrolling and instead force redraw
scrolling for a particular window?
- is it possible to know where a glyp is supposed to be on-screen after
a redisplay? Currently I solve this for xwidgets by assuming that
after a redisplay has finished, my drawing routine has been called
with valid coordinates sometime during redisplay. This doesnt seem to
happen always and thats why I suspect the scrolling routine, but
perhaps my basic aproach is flawed.
--
Joakim Verona
next reply other threads:[~2010-09-10 10:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-10 10:07 joakim [this message]
2010-09-10 10:18 ` inhibiting x_scroll_run for a window? joakim
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