From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David De La Harpe Golden Newsgroups: gmane.emacs.devel Subject: Re: Scrollbar thumbs Date: Sat, 07 Nov 2009 17:47:50 +0000 Message-ID: <4AF5B2C6.6030201@harpegolden.net> References: <87aayy8f3f.fsf@telefonica.net> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1257616104 8000 80.91.229.12 (7 Nov 2009 17:48:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 7 Nov 2009 17:48:24 +0000 (UTC) Cc: emacs-devel@gnu.org To: =?UTF-8?B?w5NzY2FyIEZ1ZW50ZXM=?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Nov 07 18:48:17 2009 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1N6pOb-0002YU-5Q for ged-emacs-devel@m.gmane.org; Sat, 07 Nov 2009 18:48:17 +0100 Original-Received: from localhost ([127.0.0.1]:41724 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1N6pOa-0002ug-BM for ged-emacs-devel@m.gmane.org; Sat, 07 Nov 2009 12:48:16 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1N6pOU-0002ri-A7 for emacs-devel@gnu.org; Sat, 07 Nov 2009 12:48:10 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1N6pOP-0002mg-H2 for emacs-devel@gnu.org; Sat, 07 Nov 2009 12:48:09 -0500 Original-Received: from [199.232.76.173] (port=42863 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1N6pOP-0002mV-3Q for emacs-devel@gnu.org; Sat, 07 Nov 2009 12:48:05 -0500 Original-Received: from harpegolden.net ([65.99.215.13]:60338) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1N6pOO-0001Zq-Lf for emacs-devel@gnu.org; Sat, 07 Nov 2009 12:48:04 -0500 Original-Received: from [87.198.54.207] (87-198-54-207.ptr.magnet.ie [87.198.54.207]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "David De La Harpe Golden", Issuer "David De La Harpe Golden Personal CA rev 3" (verified OK)) by harpegolden.net (Postfix) with ESMTP id 71380813E; Sat, 7 Nov 2009 17:48:02 +0000 (GMT) User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20090701) In-Reply-To: <87aayy8f3f.fsf@telefonica.net> X-detected-operating-system: by monty-python.gnu.org: Genre and OS details not recognized. X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:116702 Archived-At: =C3=93scar Fuentes wrote: > Just in case someone takes the above comment half-seriously, it is wort= h > noting that the problem faced by emacs wrt GTK scrollbar would hinder > other applications too. For instance, on some areas it is required to > display very large datasets on a grid. There, it is not often clear how > much rows there are on the dataset, nor exists the concept on n-th row, > so it is not possible to have a precise 1-to-1 mapping among the > scrollbar thumb position and the dataset cursor position. Hmm. The is an old ui convention for [some of] that, whereby using the=20 scrollbar arrows allows pushing "past the end", shrinking the thumb. Back in the amiga days at least, this was some sort of a FAQ along the=20 lines of "Q. Why do scrollbars have those redundant arrow things at all, anyway? A. Because they're not redundant, in some situations the arrows grow the=20 size of the content area, the bar only scrolls within the current extent=20 of the content area" - you see that in the "workbench" file browser windows on the amiga, for=20 example. The fact people had to have that explained to them on=20 occasion suggests it wasn't all that obvious though. I don't know if gtk actually allows that, and I don't think it really helps in the emacs case, just saying that convention existed.