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 09:19:28 +0300 Message-ID: <83zhli1mof.fsf@gnu.org> References: Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="166704"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 36633@debbugs.gnu.org To: Keith David Bershatsky Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Jul 13 08:20:07 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 1hmBOB-000hEa-6Y for geb-bug-gnu-emacs@m.gmane.org; Sat, 13 Jul 2019 08:20:07 +0200 Original-Received: from localhost ([::1]:53806 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hmBOA-0007IG-9J for geb-bug-gnu-emacs@m.gmane.org; Sat, 13 Jul 2019 02:20:06 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35104) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hmBO7-0007I6-G0 for bug-gnu-emacs@gnu.org; Sat, 13 Jul 2019 02:20:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hmBO6-0006Ud-LG for bug-gnu-emacs@gnu.org; Sat, 13 Jul 2019 02:20:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:60763) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hmBO6-0006UV-Hd for bug-gnu-emacs@gnu.org; Sat, 13 Jul 2019 02:20:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hmBO6-0001Zs-BY for bug-gnu-emacs@gnu.org; Sat, 13 Jul 2019 02:20:02 -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 06:20:02 +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=B36633.15629987816014 (code B ref 36633); Sat, 13 Jul 2019 06:20:02 +0000 Original-Received: (at 36633) by debbugs.gnu.org; 13 Jul 2019 06:19:41 +0000 Original-Received: from localhost ([127.0.0.1]:41351 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hmBNk-0001Ys-PV for submit@debbugs.gnu.org; Sat, 13 Jul 2019 02:19:41 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:50901) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hmBNj-0001Ya-UQ for 36633@debbugs.gnu.org; Sat, 13 Jul 2019 02:19:40 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:57407) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hmBNe-00062K-Kr; Sat, 13 Jul 2019 02:19:34 -0400 Original-Received: from [176.228.60.248] (port=2450 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1hmBNe-0001KC-53; Sat, 13 Jul 2019 02:19:34 -0400 In-reply-to: (message from Keith David Bershatsky on Fri, 12 Jul 2019 19:10:44 -0700) 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:162850 Archived-At: > Date: Fri, 12 Jul 2019 19:10:44 -0700 > From: Keith David Bershatsky > > Step 1: Launch Emacs 26. > > Step 2: Evaluate the following code. > > (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?