[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#17497: 24.4.50; TTY menu glitches
From: |
Thomas Dickey |
Subject: |
bug#17497: 24.4.50; TTY menu glitches |
Date: |
Sun, 01 Jun 2014 13:18:17 -0400 |
User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Sun, Jun 01, 2014 at 01:12:44PM -0400, Thomas Dickey wrote:
> Most of the file, however, consists of repainting the menu.
By the way, since the menu covers only half the screen, there aren't
any general-purpose scrolling optimizations that would help. (xterm
does support left/right margins, which would be interesting to explore
in this area). What ncurses does when it's getting behind is to drop
updates - the typeahead feature:
The curses library does ``line-breakout optimization'' by looking for
typeahead periodically while updating the screen. If input is found,
and it is coming from a tty, the current update is postponed until re-
fresh or doupdate is called again. This allows faster response to com-
mands typed in advance. Normally, the input FILE pointer passed to
newterm, or stdin in the case that initscr was used, will be used to do
this typeahead checking. The typeahead routine specifies that the file
descriptor fd is to be used to check for typeahead instead. If fd is
-1, then no typeahead checking is done.
--
Thomas E. Dickey <dickey@invisible-island.net>
http://invisible-island.net
ftp://invisible-island.net
signature.asc
Description: Digital signature
- bug#17497: 24.4.50; TTY menu glitches, Eli Zaretskii, 2014/06/01
- bug#17497: 24.4.50; TTY menu glitches, Eli Zaretskii, 2014/06/01
- bug#17497: 24.4.50; TTY menu glitches, Thomas Dickey, 2014/06/01
- bug#17497: 24.4.50; TTY menu glitches,
Thomas Dickey <=
- bug#17497: 24.4.50; TTY menu glitches, Eli Zaretskii, 2014/06/01
- bug#17497: 24.4.50; TTY menu glitches, Thomas Dickey, 2014/06/01
- bug#17497: 24.4.50; TTY menu glitches, Eli Zaretskii, 2014/06/02
- bug#17497: 24.4.50; TTY menu glitches, Glenn Morris, 2014/06/02
- bug#17497: 24.4.50; TTY menu glitches, Eli Zaretskii, 2014/06/02
- bug#17497: 24.4.50; TTY menu glitches, Glenn Morris, 2014/06/02
- bug#17497: 24.4.50; TTY menu glitches, Eli Zaretskii, 2014/06/02
- bug#17497: 24.4.50; TTY menu glitches, Glenn Morris, 2014/06/02
- bug#17497: 24.4.50; TTY menu glitches, Stefan Monnier, 2014/06/03
- bug#17497: 24.4.50; TTY menu glitches, Thomas Dickey, 2014/06/03