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#47360: 27.1; using 'bar cursor, mouseclick is rounded to the wrong char position Date: Sun, 28 Mar 2021 10:25:19 +0300 Message-ID: <83eefzoi3k.fsf@gnu.org> References: <552AAC5C-46DD-418C-958E-949E33D4A697@protonmail.com> <83pmzojwgg.fsf@gnu.org> <87mtus9z1a.fsf@gnus.org> <263840E3-182B-4E13-91FD-091D78139FFC@protonmail.com> <59595EE8-9594-4A4B-B8F6-DC0A5967C3C7@protonmail.com> <83k0psnztu.fsf@gnu.org> <5DD13ED2-79CA-4D3C-B9C9-6A80C5F046B1@protonmail.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="22131"; mail-complaints-to="usenet@ciao.gmane.io" Cc: larsi@gnus.org, 47360@debbugs.gnu.org To: Julian Rohrhuber Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Mar 28 09:26:11 2021 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 1lQPoI-0005av-5A for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 28 Mar 2021 09:26:10 +0200 Original-Received: from localhost ([::1]:56070 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lQPoG-0004LD-NM for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 28 Mar 2021 03:26:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:52404) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lQPoA-0004Kj-46 for bug-gnu-emacs@gnu.org; Sun, 28 Mar 2021 03:26:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:33802) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lQPo9-0002wf-Sw for bug-gnu-emacs@gnu.org; Sun, 28 Mar 2021 03:26:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lQPo9-0008PR-Ou for bug-gnu-emacs@gnu.org; Sun, 28 Mar 2021 03:26:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 28 Mar 2021 07:26:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47360 X-GNU-PR-Package: emacs Original-Received: via spool by 47360-submit@debbugs.gnu.org id=B47360.161691633032248 (code B ref 47360); Sun, 28 Mar 2021 07:26:01 +0000 Original-Received: (at 47360) by debbugs.gnu.org; 28 Mar 2021 07:25:30 +0000 Original-Received: from localhost ([127.0.0.1]:45348 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lQPnd-0008O4-KL for submit@debbugs.gnu.org; Sun, 28 Mar 2021 03:25:29 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:59286) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lQPna-0008Nl-Uf for 47360@debbugs.gnu.org; Sun, 28 Mar 2021 03:25:28 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:49371) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lQPnV-0002Ng-Mz; Sun, 28 Mar 2021 03:25:21 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:2216 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lQPnM-0000vk-69; Sun, 28 Mar 2021 03:25:21 -0400 In-Reply-To: <5DD13ED2-79CA-4D3C-B9C9-6A80C5F046B1@protonmail.com> (message from Julian Rohrhuber on Sun, 28 Mar 2021 07:15:38 +0000) 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:203149 Archived-At: > Date: Sun, 28 Mar 2021 07:15:38 +0000 > From: Julian Rohrhuber > Cc: larsi@gnus.org, 47360@debbugs.gnu.org > > > >> There is one more case where one can feel the difference: when selecting with the mouse and dragging to the right, the selection jumps to each character a little "too late", that is, after you have already crossed the position you want the selection to end at. You have to point to a character *after* the one you want to include. The current selection always is up to one character behind the cursor barline. This results in a "sticky" feeling. > > > > Yes, selection in Emacs works on per-character granularity, because it > > uses the faces infrastructure. We'd need to do something very > > different to make that use pixel granularity. Patches are welcome. > > I don't think that a change of granularity would be necessarily at all to improve what I describe. All what would have to be done is to change at what *cursor* position the selection jumps to the next character (namely when it crosses its middle). So it would only another application of the solution to the current issue. Sorry, I thought you were talking about the jumps, not about when the jump is done. However, with your proposal, the jump will be too early, so instead of "lagging" the selection would sometimes "lead" the mouse pointer, i.e. be ahead of it. As long as the changes are one character at a time, there's no way around that basic fact.