From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: relative line numbers and folding: how to make they play along? Date: Wed, 13 Jul 2016 16:10:30 -0400 Message-ID: References: <8360sbcvbz.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1468440692 18444 80.91.229.3 (13 Jul 2016 20:11:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 13 Jul 2016 20:11:32 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Jul 13 22:11:24 2016 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bNQV5-0002TF-2c for geh-help-gnu-emacs@m.gmane.org; Wed, 13 Jul 2016 22:11:19 +0200 Original-Received: from localhost ([::1]:49731 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bNQV4-0004D5-2B for geh-help-gnu-emacs@m.gmane.org; Wed, 13 Jul 2016 16:11:18 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:46988) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bNQUb-0004D0-NN for help-gnu-emacs@gnu.org; Wed, 13 Jul 2016 16:10:50 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bNQUY-0008Tr-4s for help-gnu-emacs@gnu.org; Wed, 13 Jul 2016 16:10:49 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:40211) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bNQUX-0008Td-TY for help-gnu-emacs@gnu.org; Wed, 13 Jul 2016 16:10:46 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1bNQUO-0001xe-GP for help-gnu-emacs@gnu.org; Wed, 13 Jul 2016 22:10:36 +0200 Original-Received: from 69-165-156-121.dsl.teksavvy.com ([69.165.156.121]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 13 Jul 2016 22:10:36 +0200 Original-Received: from monnier by 69-165-156-121.dsl.teksavvy.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 13 Jul 2016 22:10:36 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 14 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 69-165-156-121.dsl.teksavvy.com User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) Cancel-Lock: sha1:6ukxkFMvUiA0eof0BIgpsSVYhpU= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.org gmane.emacs.help:110819 Archived-At: > What are "relative line numbers" in Emacs? I see nothing in these > discussions that describes how (with what commands/packages) the line > numbers were produced in Emacs. So it's hard to tell anything > intelligent about this issue. I think to implement relative-visual-linum-mode efficiently, we'd need help from the display engine. E.g.: - First perform redisplay of the window. - then, go through the window, visual-line by visual-line and add something in the margin. - then update the margin part of the matrices. Stefan