From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii 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, 01 Nov 2020 18:15:58 +0200 Message-ID: <83eeldf3y9.fsf@gnu.org> References: <20201030163125.GD27593@zira.vinc17.org> <20201030203453.GF27593@zira.vinc17.org> <20201030205702.GG27593@zira.vinc17.org> <83y2jn8lqr.fsf@gnu.org> <20201030230035.GH27593@zira.vinc17.org> <20201031004617.GI27593@zira.vinc17.org> <20201031011350.GJ27593@zira.vinc17.org> <83r1pe975u.fsf@gnu.org> <20201031224324.GK27593@zira.vinc17.org> <20201101002430.GL27593@zira.vinc17.org> <20201101002803.GM27593@zira.vinc17.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28997"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 44284@debbugs.gnu.org To: Vincent Lefevre Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Nov 01 17:17:33 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 1kZG2u-0007QT-7d for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 01 Nov 2020 17:17:32 +0100 Original-Received: from localhost ([::1]:33446 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kZG2t-0006zw-99 for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 01 Nov 2020 11:17:31 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:38398) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kZG2Q-0006yj-Ar for bug-gnu-emacs@gnu.org; Sun, 01 Nov 2020 11:17:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:54996) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kZG2Q-0004iM-1a for bug-gnu-emacs@gnu.org; Sun, 01 Nov 2020 11:17:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kZG2P-00010H-TE for bug-gnu-emacs@gnu.org; Sun, 01 Nov 2020 11:17:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 01 Nov 2020 16:17:01 +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=B44284.16042473803807 (code B ref 44284); Sun, 01 Nov 2020 16:17:01 +0000 Original-Received: (at 44284) by debbugs.gnu.org; 1 Nov 2020 16:16:20 +0000 Original-Received: from localhost ([127.0.0.1]:38309 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kZG1k-0000zK-Ca for submit@debbugs.gnu.org; Sun, 01 Nov 2020 11:16:20 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:38190) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kZG1i-0000z8-TL for 44284@debbugs.gnu.org; Sun, 01 Nov 2020 11:16:19 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:56817) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kZG1d-0004ep-N0; Sun, 01 Nov 2020 11:16:13 -0500 Original-Received: from [176.228.60.248] (port=2143 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kZG1b-0007lj-Sl; Sun, 01 Nov 2020 11:16:13 -0500 In-Reply-To: <20201101002803.GM27593@zira.vinc17.org> (message from Vincent Lefevre on Sun, 1 Nov 2020 01:28:03 +0100) 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:192412 Archived-At: > Date: Sun, 1 Nov 2020 01:28:03 +0100 > From: Vincent Lefevre > Cc: 44284@debbugs.gnu.org > > On 2020-11-01 01:24:30 +0100, Vincent Lefevre wrote: > [...] > > where row->height is increased to 14, hence the issue with the first > > line. One successively gets > > > > it->current_y = 0 > > it->current_y = 14 > > it->current_y = 27 > > > > adding 13 each time for the following lines. > > About this, this is in function display_line > > it->current_y += row->height; Yes, this is how the display engine tracks the Y coordinate of the screen line it is laying out.