From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Keith David Bershatsky Newsgroups: gmane.emacs.bugs Subject: bug#36633: Scrolling by pixels: visible stretch glyphs overwrite header-line. Date: Sun, 14 Jul 2019 09:47:25 -0700 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="18122"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 36633@debbugs.gnu.org To: Alan Third Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jul 14 18:48:09 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hmhfT-0004W6-Vz for geb-bug-gnu-emacs@m.gmane.org; Sun, 14 Jul 2019 18:48:08 +0200 Original-Received: from localhost ([::1]:33322 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hmhfS-0006Gg-Hm for geb-bug-gnu-emacs@m.gmane.org; Sun, 14 Jul 2019 12:48:06 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54816) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hmhfP-0006GN-99 for bug-gnu-emacs@gnu.org; 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I don't have a 26.2 build at the moment. The issue is less noticeable on the master branch, but can still be seen nevertheless. I have not studied the code as to what makes this feature work, but offhand would think that the header-line should not be overwritten by the row moving upwards (rather than updated after it has been overwritten). Emacs 26.1: https://youtu.be/Y8cZfURSwZc Emacs Master Branch: https://youtu.be/BO3r9_6OvYo ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; > Date: [07-14-2019 03:39:35] <14 Jul 2019 11:39:35 +0100> > From: Alan Third > > * * * > > Hi Keith, I can't replicate this behaviour. The worst I see is some > flickering of the header line, which is unfortunately to be expected > from the current implementation. > > When you do it is the header line being overwritten and not immediately updated? > -- > Alan Third