From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Vincent Lefevre Newsgroups: gmane.emacs.bugs Subject: bug#44284: 27.1; with some Unicode font, scrolling upward with the mouse wheel actually scrolls downward when the cursor needs repositioning Date: Sun, 1 Nov 2020 22:13:26 +0100 Message-ID: <20201101211326.GQ27593@zira.vinc17.org> References: <20201031004617.GI27593@zira.vinc17.org> <20201031011350.GJ27593@zira.vinc17.org> <83r1pe975u.fsf@gnu.org> <20201031224324.GK27593@zira.vinc17.org> <20201101002430.GL27593@zira.vinc17.org> <83ft5tf3zr.fsf@gnu.org> <20201101173240.GO27593@zira.vinc17.org> <83a6w1ezwv.fsf@gnu.org> <20201101183458.GP27593@zira.vinc17.org> <834km8gbiv.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17665"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/1.14.5+76 (bb407ec3) vl-127292 (2020-06-24) Cc: 44284@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Nov 01 22:20:45 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1kZKmG-0004N1-Hu for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 01 Nov 2020 22:20:40 +0100 Original-Received: from localhost ([::1]:58948 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kZKmF-0000ns-Jf for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 01 Nov 2020 16:20:39 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:34166) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kZKfr-0007Nu-22 for bug-gnu-emacs@gnu.org; Sun, 01 Nov 2020 16:14:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:55437) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kZKfp-0006pP-Sp for bug-gnu-emacs@gnu.org; Sun, 01 Nov 2020 16:14:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kZKfp-0004IT-Ob for bug-gnu-emacs@gnu.org; Sun, 01 Nov 2020 16:14:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Vincent Lefevre Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 01 Nov 2020 21:14:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 44284 X-GNU-PR-Package: emacs Original-Received: via spool by 44284-submit@debbugs.gnu.org id=B44284.160426521116471 (code B ref 44284); Sun, 01 Nov 2020 21:14:01 +0000 Original-Received: (at 44284) by debbugs.gnu.org; 1 Nov 2020 21:13:31 +0000 Original-Received: from localhost ([127.0.0.1]:38750 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kZKfK-0004Hb-Rz for submit@debbugs.gnu.org; Sun, 01 Nov 2020 16:13:31 -0500 Original-Received: from joooj.vinc17.net ([155.133.131.76]:57594) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kZKfI-0004HQ-L8 for 44284@debbugs.gnu.org; Sun, 01 Nov 2020 16:13:29 -0500 Original-Received: from smtp-zira.vinc17.net (128.119.75.86.rev.sfr.net [86.75.119.128]) by joooj.vinc17.net (Postfix) with ESMTPSA id 1EBEA3A4; Sun, 1 Nov 2020 22:13:27 +0100 (CET) Original-Received: by zira.vinc17.org (Postfix, from userid 1000) id 9DF1FC23EDB; Sun, 1 Nov 2020 22:13:26 +0100 (CET) Content-Disposition: inline In-Reply-To: <834km8gbiv.fsf@gnu.org> X-Mailer-Info: https://www.vinc17.net/mutt/ X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:192470 Archived-At: On 2020-11-01 20:47:04 +0200, Eli Zaretskii wrote: > > 3. The fact that row->phys_ascent > row->ascent in compute_line_metrics > > yields an incorrect behavior. This is about the following comment: > > > > /* If first line's physical ascent is larger than its logical > > ascent, use the physical ascent, and make the row taller. > > This makes accented characters fully visible. */ > > This is not a bug, we must keep that code. It just isn't supposed to > fire in your case. For this one, I meant that if the first row is made taller for some good reason, then this shouldn't yields recentering when scrolling upward with the mouse wheel, and (move-to-window-line -1) should put the cursor on the last fully visible display line of the window, as documented. Solving (2) would no longer trigger this code in my case, but you should make sure that this code, which is still useful in some other cases, behaves correctly with various Emacs features. -- Vincent Lefèvre - Web: 100% accessible validated (X)HTML - Blog: Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)