From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Scrolling commands and skipping redisplay, was: Re: emacs rendering comparisson between emacs23 and emacs26.3 Date: Mon, 20 Apr 2020 17:50:20 -0400 Message-ID: References: <20200403174757.GA8266@ACM> <83zhbcdmyi.fsf@gnu.org> <61f565cd-4fee-d48c-a9ef-b78419b3d058@yandex.ru> <83wo6ed4kb.fsf@gnu.org> <464b5639-7790-fdbc-b519-22a6b0e8c016@yandex.ru> <83o8rqaucp.fsf@gnu.org> <551c7634-f614-c5a7-c089-33a0dc56574d@yandex.ru> <83imhyaqyw.fsf@gnu.org> <3ddcec07-079f-18e8-81a7-76eaf9a8187a@yandex.ru> <83d083ia16.fsf@gnu.org> <83y2qqgrr6.fsf@gnu.org> <837dyagkwm.fsf@gnu.org> <532544ab-55ec-aab9-1c2f-fa0081332401@yandex.ru> <834ktegivn.fsf@gnu.org> <83y2qqf29e.fsf@gnu.org> <83tv1eezyi.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="12633"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: rms@gnu.org, emacs-devel@gnu.org, rudalics@gmx.at, rrandresf@gmail.com, dgutov@yandex.ru, acm@muc.de To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Apr 20 23:51:52 2020 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jQeKW-0003Al-8x for ged-emacs-devel@m.gmane-mx.org; Mon, 20 Apr 2020 23:51:52 +0200 Original-Received: from localhost ([::1]:43012 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jQeKT-0002PC-QO for ged-emacs-devel@m.gmane-mx.org; Mon, 20 Apr 2020 17:51:49 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:45902) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jQeJQ-0001Y0-V1 for emacs-devel@gnu.org; Mon, 20 Apr 2020 17:50:53 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.90_1) (envelope-from ) id 1jQeJP-0004NC-9H for emacs-devel@gnu.org; Mon, 20 Apr 2020 17:50:43 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:25797) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jQeJ8-00047d-J6; Mon, 20 Apr 2020 17:50:26 -0400 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id C78E74502C5; Mon, 20 Apr 2020 17:50:23 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 794174502C2; Mon, 20 Apr 2020 17:50:21 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1587419421; bh=K78E9vzLB+JaZy66u7Rn85VD12zVjqeVdb3dYfCSo00=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=bil6zsMlonkTDDllbKlSa7dBUOcRkOU7i4jultAeNq/f+XetsY8ND1U2+TyNUUEUE 1vvndb7tDEIecwhyii4TXroqVf8DG8OPOtqTQDhz+ENGRVP0pw2Nb2T/UVm1Iu3gzy 3Jd/6fuDKshcSi4oXD9TWpfGwFnoUeykEc/sWkuqOw4A6VjshQwX0WrLkfBJe6q8Dr xA57fNgAMMs9bh022Tpk483f8yqFdBnaNUjK8mn3zp/acRd1JnLsSm34trxXtoxnBz Plm9EGu0y9dPRBXVhw95QQ8rnTHfY+A2NZ9TkK/n+Wtf3/N7XBI8GSXauCCurdrITE E0ScS3n6ly+iQ== Original-Received: from alfajor (unknown [104.247.241.114]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 1F94812024D; Mon, 20 Apr 2020 17:50:21 -0400 (EDT) In-Reply-To: <83tv1eezyi.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 20 Apr 2020 22:09:41 +0300") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-detected-operating-system: by eggs.gnu.org: First seen = 2020/04/20 17:50:24 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Received-From: 132.204.25.50 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:247425 Archived-At: >> Tho, I guess we should consider "1" as meaning "strictly smaller than >> 2.0", in which case a line would have to be twice as tall as a normal >> line before we cause a recenter. > > No, I think the inequality is done in pixels, if I'm not > misremembering. What I meant is that if the setting is 1 and the line height is, say, 13 pixels, we could consider any displacement of strictly less than 26 pixels to be "within the limits". Or we could accept a floating point setting and let the user make that choice. Stefan