From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#36633: Scrolling by pixels: visible stretch glyphs overwrite header-line. Date: Sat, 13 Jul 2019 11:39:45 +0300 Message-ID: <83h87q1g6m.fsf@gnu.org> References: <83zhli1mof.fsf@gnu.org> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="213655"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 36633@debbugs.gnu.org, esq@lawlist.com To: Stefan Kangas Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Jul 13 10:40:07 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 1hmDZe-000tSk-Mo for geb-bug-gnu-emacs@m.gmane.org; Sat, 13 Jul 2019 10:40:06 +0200 Original-Received: from localhost ([::1]:54196 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hmDZd-0003ci-K4 for geb-bug-gnu-emacs@m.gmane.org; Sat, 13 Jul 2019 04:40:05 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39577) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hmDZb-0003bB-3V for bug-gnu-emacs@gnu.org; Sat, 13 Jul 2019 04:40:03 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hmDZa-0003jm-5T for bug-gnu-emacs@gnu.org; Sat, 13 Jul 2019 04:40:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:60851) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hmDZa-0003jf-1y for bug-gnu-emacs@gnu.org; Sat, 13 Jul 2019 04:40:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hmDZZ-0005tg-UB for bug-gnu-emacs@gnu.org; Sat, 13 Jul 2019 04:40:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 13 Jul 2019 08:40:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 36633 X-GNU-PR-Package: emacs Original-Received: via spool by 36633-submit@debbugs.gnu.org id=B36633.156300719922656 (code B ref 36633); Sat, 13 Jul 2019 08:40:01 +0000 Original-Received: (at 36633) by debbugs.gnu.org; 13 Jul 2019 08:39:59 +0000 Original-Received: from localhost ([127.0.0.1]:41439 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hmDZX-0005tM-El for submit@debbugs.gnu.org; Sat, 13 Jul 2019 04:39:59 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:55398) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hmDZV-0005tA-Qt for 36633@debbugs.gnu.org; Sat, 13 Jul 2019 04:39:58 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:59504) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hmDZO-0003at-BK; Sat, 13 Jul 2019 04:39:50 -0400 Original-Received: from [176.228.60.248] (port=3235 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1hmDZN-0000t2-Mt; Sat, 13 Jul 2019 04:39:50 -0400 In-reply-to: (message from Stefan Kangas on Sat, 13 Jul 2019 10:32:16 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:162859 Archived-At: > From: Stefan Kangas > Date: Sat, 13 Jul 2019 10:32:16 +0200 > Cc: Keith David Bershatsky , 36633@debbugs.gnu.org > > > > (progn > > > (find-library "simple") > > > (pixel-scroll-mode 1) > > > (re-search-forward "\t\t\t\t\t" nil t) > > > (set-window-start (selected-window) (match-beginning 0)) > > > (setq header-line-format "hello-world") > > > (setq buffer-display-table (make-display-table)) > > > (aset buffer-display-table > > > ?\t > > > (vector (make-glyph-code ?\u00BB 'font-lock-warning-face) > > > (make-glyph-code ?\t 'highlight))) > > > (setq tab-width 8)) > > > > > > Step 3: Move the mousewheel downward one time; i.e., one ratchet. > > > > > > Step 4: Observe the visible stretch glyphs overwriting the header-line. > > > > This doesn't happen to me on MS-Windows, so I think this is > > Darwin-specific. > > > > Can someone try reproducing this on GNU/Linux and report? > > I can't reproduce this here. Thanks. I guess this confirms that the problem is specific to macOS.