From: storm@cua.dk (Kim F. Storm)
Cc: emacs-devel@gnu.org
Subject: Re: [ulrich@a0.complang.tuwien.ac.at: blink-cursor improvement suggestion]
Date: 25 Feb 2002 10:51:06 +0100 [thread overview]
Message-ID: <5xit8lga9h.fsf@kfs2.cua.dk> (raw)
In-Reply-To: <200202250009.g1P09cn15738@aztec.santafe.edu>
Richard Stallman <rms@gnu.org> writes:
> Do people like change?
>
> From: Ulrich Neumerkel <ulrich@a0.complang.tuwien.ac.at>
> Subject: blink-cursor improvement suggestion
> To: bug-gnu-emacs@gnu.org
> Date: Sun, 24 Feb 2002 18:21:37 +0100 (MET)
>
Yes, I think it is an improvement that the cursor never disappears.
However, as implemented, it doesn't work, as it doesn't preserve the
current cursor color, but uses two fixed colors.
I have code which changes the color of the cursor depending on the
current state of the buffer (e.g. read-only, overwrite mode), and
the supplied code works very poorly with that.
I think the code should remember the `true' background color of the
cursor and restore that. In addition, it should notice if the
cursor color has changed, so it can correctly restore it.
Something like this:
(defvar blink-cursor-defined-color nil)
(defvar blink-cursor-current-color nil)
(defvar blink-cursor-alt-color "gray50")
(defvar blink-cursor-logical-off nil)
(defun blink-cursor-timer-function ()
"Improved but flickering timer function of timer `blink-cursor-timer'."
(let ((bg (face-background 'cursor)))
(when (not blink-cursor-defined-color)
(setq blink-cursor-defined-color bg)
(setq blink-cursor-current-color bg)
(setq blink-cursor-logical-off t))
(when (not (equal bg blink-cursor-current-color))
(setq blink-cursor-defined-color bg))
(setq blink-cursor-logical-off (not blink-cursor-logical-off))
(setq blink-cursor-current-color
(if blink-cursor-logical-off
blink-cursor-alt-color
blink-cursor-defined-color))
(set-face-background 'cursor blink-cursor-current-color)))
--
Kim F. Storm <storm@cua.dk> http://www.cua.dk
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next prev parent reply other threads:[~2002-02-25 9:51 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-25 0:09 [ulrich@a0.complang.tuwien.ac.at: blink-cursor improvement suggestion] Richard Stallman
2002-02-25 9:51 ` Kim F. Storm [this message]
2002-02-25 20:55 ` Jason Rumney
2002-02-25 20:47 ` Jason Rumney
2002-02-25 21:19 ` Kim F. Storm
2002-02-26 11:02 ` Kim F. Storm
2002-02-26 11:46 ` Juanma Barranquero
2002-02-26 12:05 ` Kim F. Storm
2002-02-26 14:25 ` Juanma Barranquero
2002-02-27 5:50 ` Richard Stallman
2002-02-27 10:12 ` Kim F. Storm
2002-02-28 4:08 ` Richard Stallman
2002-03-01 23:27 ` Kim F. Storm
2002-03-03 16:06 ` Tak Ota
2002-03-03 19:43 ` Tak Ota
2002-02-26 20:15 ` Richard Stallman
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