From xemacs-m  Tue Jan  7 19:36:39 1997
Received: from altair.xemacs.org (steve@xemacs.miranova.com [206.190.83.19])
          by xemacs.cs.uiuc.edu (8.8.4/8.8.4) with ESMTP
	  id TAA07272 for <xemacs-beta@xemacs.org>; Tue, 7 Jan 1997 19:36:38 -0600 (CST)
Received: (from steve@localhost)
          by altair.xemacs.org (8.8.4/8.8.4)
	  id RAA02065; Tue, 7 Jan 1997 17:46:48 -0800
Sender: steve@xemacs.org
To: xemacs-beta@xemacs.org
Subject: Re: scrollbars
References: <9701080035.AA12973@euler.alphatech.com> <kigafql5608.fsf@jagor.srce.hr>
X-Url: http://www.miranova.com/%7Esteve/
Mail-Copies-To: never
X-Face: #!T9!#9s-3o8)*uHlX{Ug[xW7E7Wr!*L46-OxqMu\xz23v|R9q}lH?cRS{rCNe^'[`^sr5"
 f8*@r4ipO6Jl!:Ccq<xoV[Qz2u8<8-+Vwf2gzJ44lf_/y9OaQ`@#Q65{U4/TC)i2`~/M&QI$X>p:9I
 OSS'2{-)-4wBnVeg0S\O4Al@)uC[pD|+
X-Attribution: sb
From: Steven L Baur <steve@miranova.com>
In-Reply-To: Hrvoje Niksic's message of 08 Jan 1997 02:07:35 +0100
Mime-Version: 1.0 (generated by tm-edit 7.100)
Content-Type: text/plain; charset=US-ASCII
Date: 07 Jan 1997 17:46:44 -0800
Message-ID: <m2n2ulueez.fsf@altair.xemacs.org>
Lines: 27
X-Mailer: Red Gnus v0.79/XEmacs 20.0

>>>>> "Hrv" == Hrvoje Niksic <hniksic@srce.hr> writes:
>>>>> "Greg" == Greg Klanderman (greg@alphatech.com) wrote:

Greg> Its also annoying that the cursor can move inside the hidden
Greg> headers, instead of jumping over.  You have to hit C-n once for
Greg> every line to get through.

I've seen that too.  The way the code is documented, it's not supposed
to happen.  I think.

Hrv> This seems to be a text-properties issue, possibly a defficiency
Hrv> in XEmacs' implementation of text properties.  AFAIK Gnus uses
Hrv> text-props for things like invisible text, and we implement them
Hrv> on top of extents.

Hrv> Gnus could probably get better performance, as well as behavior,
Hrv> on XEmacs if it used the native extents, but it would ruin the
Hrv> compatibility with GNU Emacs.  As Gnus is developed on GNU Emacs,
Hrv> this is unthinkable.

Gnus uses native extents for some things.  There are too many problems
with our implementation of text properties to do anything but.
-- 
steve@miranova.com baur
Unsolicited commercial e-mail will be billed at $250/message.
"That Bill Clinton.  He probably doesn't know how to log on to the
Internet."  -- Rush Limbaugh, noted Computer Expert

