From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Scrolling commands and skipping redisplay, was: Re: emacs rendering comparisson between emacs23 and emacs26.3 Date: Thu, 16 Apr 2020 08:22:13 +0300 Message-ID: <83zhbcdmyi.fsf@gnu.org> References: <20200403174757.GA8266@ACM> <20200404104553.GA5329@ACM> <07fe3b69-3ab2-3173-0696-cb17809e2b91@gmx.at> <83blo7v68b.fsf@gnu.org> <1845d7aa-9ae4-3d95-6a30-c7b1d8d8adec@gmx.at> <83a73qt6zs.fsf@gnu.org> <97c4254e-ff43-8402-3645-f713c408c245@gmx.at> <83y2r9syby.fsf@gnu.org> <20200405195753.GG5049@ACM> <542b48ba-4dfa-820f-ba50-4b147ab6d8e2@yandex.ru> <0a5f70aa-4985-8f8d-81d6-6ac4a60a94f9@yandex.ru> <838sj8sphk.fsf@gnu.org> <834ktwsmfw.fsf@gnu.org> <83imibqsmm.fsf@gnu.org> <478c2aab-a5fc-61c2-02e2-2d9846b95273@yandex.ru> <83v9m9nltx.fsf@gnu.org> <83tv1rn8fx.fsf@gnu.org> <4f8bb277-b376-97bf-8539-799688d8e66d@yandex.ru> <83eesvmj15.fsf@gnu.org> <6eec7f68-770e-b3b1-4627-6222f3ef7216@yandex.ru> <83ftd9kwlu.fsf@gnu.org> <1de9d24f-eeb7-7d0a-3768-4baba4365066@yandex.ru> Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="83121"; mail-complaints-to="usenet@ciao.gmane.io" Cc: acm@muc.de, rrandresf@gmail.com, emacs-devel@gnu.org, rms@gnu.org, rudalics@gmx.at To: Dmitry Gutov Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Apr 16 07:23:11 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 1jOwzX-000LU6-03 for ged-emacs-devel@m.gmane-mx.org; Thu, 16 Apr 2020 07:23:11 +0200 Original-Received: from localhost ([::1]:57990 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jOwzV-0000JD-V5 for ged-emacs-devel@m.gmane-mx.org; Thu, 16 Apr 2020 01:23:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54435) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jOwyz-0008JN-C2 for emacs-devel@gnu.org; Thu, 16 Apr 2020 01:22:38 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:53912) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jOwyy-0001Bs-EY; Thu, 16 Apr 2020 01:22:36 -0400 Original-Received: from [176.228.60.248] (port=4503 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jOwyr-0005ZN-4h; Thu, 16 Apr 2020 01:22:29 -0400 In-Reply-To: <1de9d24f-eeb7-7d0a-3768-4baba4365066@yandex.ru> (message from Dmitry Gutov on Thu, 16 Apr 2020 05:18:54 +0300) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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:247073 Archived-At: > Cc: acm@muc.de, rudalics@gmx.at, rrandresf@gmail.com, rms@gnu.org, > emacs-devel@gnu.org > From: Dmitry Gutov > Date: Thu, 16 Apr 2020 05:18:54 +0300 > > On 12.04.2020 10:10, Eli Zaretskii wrote: > > I cannot imagine why would we want to exempt only the scrolling > > commands from the input_was_pending trick. > > Scrolling is certainly special at least in some way: > > - Implementation-wise, not all commands simulate redisplay during their > operation. I think you will find that many more do than you seem to assume. Even just redisplaying a window does this in many cases (to find the proper place for window-start position). C-n and C-p do as well. And when scroll-conservatively is in effect, almost every command that moves point does.