From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#18793: 24.4; zero width rectangular selection displaces text Date: Fri, 06 May 2022 14:52:25 +0200 Message-ID: <878rrelt6e.fsf@gnus.org> References: <82ppdk41k5.fsf@gmail.com> <87fslop1af.fsf@gnus.org> <837d702b1w.fsf@gnu.org> <87czgrnei8.fsf@gnus.org> <83k0az0wfz.fsf@gnu.org> <878rreor92.fsf@gnus.org> <83ilqi29ic.fsf@gnu.org> <87sfpmnben.fsf@gnus.org> <83h76228cu.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="4060"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: carlosjosepita@gmail.com, monnier@iro.umontreal.ca, 18793@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri May 06 14:53:11 2022 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 1nmxSI-0000sp-Bn for geb-bug-gnu-emacs@m.gmane-mx.org; 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Original-Received: from [84.212.220.105] (helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nmxRa-0006ib-CQ; Fri, 06 May 2022 14:52:28 +0200 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAG1BMVEXsqFLSVzHGMCmr HyiqGSh5FyTRYlLvxbL////g/tltAAAAAWJLR0QIht6VegAAAAd0SU1FB+YFBgwZJE9bNj4AAAGi SURBVDjLxZRNT+QwDIbDHuBKA5p7nFHPkETcibPzO9IKmSvalYa/z5uvQjVwW2ktTafjx37tNvYo pdRU7Vapek/kfUq/y4+rr0CThT+lHgYbCdZ/gpqSq19D6BOopUpJKdATGrieQA7LpH3R57SroQ3a CWkzlRFfpEkPkQ4mgXCzL/EApEtB6523aQfQHaQD+108AD4+fWMq/WD/DgQARj/hMiOMl4MvHuEN MF/GJ/5PzxF+An4A3vt795cgNY/6zok6vIHx+FzuqL7E3gtALJcj2jK8geArcBws4k/HrUaZiMTH R++fwszxfgMcQohhfZ7p6e5E9s4NYH1wj8fptM5GR6LFqf4UmDpyL/n09wEjqWlCRqhCZPRKv27p z7wUQISMiEMkEb3QOuszrUSmAOJo2eos67U+zzpTn3EMtYvG5KzyWclhnWt4AQ6XLCJKzlLWZyyF Eslvr/lKBKtm2grBsMTvsFc5CBSMhhvA1O0u4H21Na5Fm7byxb+QT96OjWt/EQCLCfVoXOzq6qYS NwaUY/XnlqA2t+9VB9iOlvbgAwUB8wkyqXolAAAAJXRFWHRkYXRlOmNyZWF0ZQAyMDIyLTA1LTA2 VDEyOjI1OjM2KzAwOjAw4Z5fTQAAACV0RVh0ZGF0ZTptb2RpZnkAMjAyMi0wNS0wNlQxMjoyNToz NiswMDowMJDD5/EAAAAASUVORK5CYII= X-Now-Playing: The Cure's _Kiss Me, Kiss Me, Kiss Me_: "The Snakepit" In-Reply-To: <83h76228cu.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 06 May 2022 14:44:49 +0300") 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:231508 Archived-At: Eli Zaretskii writes: > I'm not sure. This was supposed to be a nifty feature. If some users > are annoyed by its effect, the easy way to handle that is to let those > users disable the cause of the annoyance. After all, we don't show > anything comparable for non-rectangular regions, do we? That's a good point. > What other uses could this have, except fill-column indication, which > is another minor feature? > > Adding capabilities to the Emacs display that operate on > sub-character-cell resolution will mean serious complications. For > example, what would we do when displaying color Emoji at that place? > Or what about images? Or what if the character in question is > currently highlighted by mouse-face? > > IOW, I'm asking whether these marginal features are worth a serious > surgery and complications in the display engine, which currently has > the canvas-based design? display-fill-column-indicator-mode was the only one that sprang immediately to mind, but I think it could be useful when displaying tabular data, and you want to mark boundaries without taking up extra space, for instance. And speaking off the fill indicator -- bug#54598 talks a bit about the problems with the current implementation. But that mode does show how a box cursor and a region could behave with these vertical lines. And I don't think colour emojis or images would represent that much of a problem -- I think we'd draw the line on top of the glyph? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no