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.devel Subject: Re: Future of display engine and lines Date: Sun, 24 Oct 2021 14:38:07 +0200 Message-ID: <87a6iybntc.fsf@gnus.org> References: <2108181.AU8Z245p1N@galex-713.eu> <871r4fhxtd.fsf@gnus.org> <83r1cc5i8p.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="1811"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: rms@gnu.org, galex-713@galex-713.eu, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Oct 24 14:39:08 2021 Return-path: Envelope-to: ged-emacs-devel@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 1mecmJ-0000G5-Ll for ged-emacs-devel@m.gmane-mx.org; Sun, 24 Oct 2021 14:39:07 +0200 Original-Received: from localhost ([::1]:34702 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mecmI-0001aq-M7 for ged-emacs-devel@m.gmane-mx.org; Sun, 24 Oct 2021 08:39:06 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:45038) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1meclU-0000uU-HD for emacs-devel@gnu.org; Sun, 24 Oct 2021 08:38:16 -0400 Original-Received: from quimby.gnus.org ([2a01:4f9:2b:f0f::2]:33382) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1meclS-0001Nb-FS; Sun, 24 Oct 2021 08:38:16 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=2vENd48kkaSNp8XO0f0nqbyz36bWPC9LJBNaOkic9Ao=; b=t8W+4wfVVNDLR7vHR+U1OGlPig WJHJYPJgrcd2UpZjpn2Y5Zm18MmfhRsxNn9IXaHx5Gg1ZMXJuCnfoZCNt8ZnOyqfv7De0CdtJE9Ql M1eP4S7mNqsIKn6Yc6v2H4KTYKqW+9sU7utAK6IscXwTWhXHGrtX63s52ApTtbMVq2cI=; Original-Received: from [84.212.220.105] (helo=elva) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1meclM-0006zM-HB; Sun, 24 Oct 2021 14:38:11 +0200 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAAAAAByaaZbAAAAAXNSR0IArs4c6QAAAAJiS0dE AP+Hj8y/AAAACXBIWXMAAAsSAAALEgHS3X78AAAAB3RJTUUH5QoYDA8DQsvzUQAAAJhJREFUSMft k9ENgCAMRIGwkqPclF3KUfzBQC3aw/ihwX4R0tdryxHXMBZpMH9OIAeUk3BAXOqZQlqgIXBaQQF7 BjolyKFhLrRCCGKSRPNDa0WnJSgBsV2lXpWrgZyWrETml4R+Sx7Gb6lgiTEQGo3jw7nxwh9344tS UU3MKTSmJxXqQzw/tGgBFzDOcRUwChxjSvP9wEeBDeQcFNLrTcmuAAAAJXRFWHRkYXRlOmNyZWF0 ZQAyMDIxLTEwLTI0VDEyOjE1OjAyKzAwOjAwM7W0pAAAACV0RVh0ZGF0ZTptb2RpZnkAMjAyMS0x MC0yNFQxMjoxNTowMiswMDowMELoDBgAAAA4dEVYdGljYzpjb3B5cmlnaHQAQ29weXJpZ2h0IChj KSAxOTk4IEhld2xldHQtUGFja2FyZCBDb21wYW55+Vd5NwAAACF0RVh0aWNjOmRlc2NyaXB0aW9u AHNSR0IgSUVDNjE5NjYtMi4xV63aRwAAACZ0RVh0aWNjOm1hbnVmYWN0dXJlcgBJRUMgaHR0cDov L3d3dy5pZWMuY2gcfwBMAAAAN3RFWHRpY2M6bW9kZWwASUVDIDYxOTY2LTIuMSBEZWZhdWx0IFJH QiBjb2xvdXIgc3BhY2UgLSBzUkdCRFNIqQAAAABJRU5ErkJggg== X-Now-Playing: Lost Girls's _Menneskekollektivet_: "Love, Lovers" In-Reply-To: <83r1cc5i8p.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 23 Oct 2021 10:10:30 +0300") Received-SPF: pass client-ip=2a01:4f9:2b:f0f::2; envelope-from=larsi@gnus.org; helo=quimby.gnus.org X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:277651 Archived-At: Eli Zaretskii writes: > Perhaps I misunderstand what "multiple columns" mean, then. Doesn't > it mean that buffer text is displayed in separate rectangular > portions, like this: > > aaaaaaaaaaaa bbbbbbbb ccccccc xxx xxxxxxxx xxxxxxxxxxxx > dddddddd eeeeeeee fffffff ggg yyyyyy yyyyyyyyy yyyyyyyy > hhhhhhhh iiiiiiiiii jjjj kkkk zzzzzzzzz zzzzzzzzzz zzzz > > where buffer position of the first "xxx" follows the buffer position > of the last "kkkk"? Well, it depends. Perhaps these the next point after "xxx" is before "where". Or perhaps if you enter more text after "kkk", that box should get a scroll bar, or perhaps it should extend downwards. We're basically in the same design territory that HTML + CSS 3 covers, and It's Just Very Difficult. And as you say, the main problem isn't displaying the glyphs on the screen -- but it's defining the semantics about how the blocks interoperate, and making a command like `M-q' do something sensible within a block. Within the current Emacs structure, it would have to look like a bunch of buffers that we glue together as sub-panes inside one window, where your example ("xxx" follows "kkkk") would be as two sub-panes from one of these sub-buffers, and where the second sub-pane displays the text after line 3, with the layout in question. I mean... it'd be great, but I think we're basically talking about a different editor. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no