From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.help Subject: Re: Emacs pretest: highlight line number in display-line-numbers-mode? Date: Thu, 19 Oct 2017 23:09:50 +0300 Message-ID: <834lquew6p.fsf@gnu.org> References: <87a80ntah3.fsf@gmail.com> <25a064f1-c267-49f7-a8de-b28baee928ac@default> NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1508443832 12566 195.159.176.226 (19 Oct 2017 20:10:32 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 19 Oct 2017 20:10:32 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Oct 19 22:10:28 2017 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e5H94-00022H-Ta for geh-help-gnu-emacs@m.gmane.org; Thu, 19 Oct 2017 22:10:23 +0200 Original-Received: from localhost ([::1]:51065 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e5H9C-0006a2-Bg for geh-help-gnu-emacs@m.gmane.org; Thu, 19 Oct 2017 16:10:30 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35925) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e5H8n-0006Zl-Nn for help-gnu-emacs@gnu.org; Thu, 19 Oct 2017 16:10:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e5H8j-0008Ua-Oc for help-gnu-emacs@gnu.org; Thu, 19 Oct 2017 16:10:05 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:40264) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e5H8j-0008UU-MI for help-gnu-emacs@gnu.org; Thu, 19 Oct 2017 16:10:01 -0400 Original-Received: from [176.228.60.248] (port=1273 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1e5H8j-00072E-0c for help-gnu-emacs@gnu.org; Thu, 19 Oct 2017 16:10:01 -0400 In-reply-to: <25a064f1-c267-49f7-a8de-b28baee928ac@default> (message from Drew Adams on Thu, 19 Oct 2017 10:18:25 -0700 (PDT)) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e 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:114582 Archived-At: > Date: Thu, 19 Oct 2017 10:18:25 -0700 (PDT) > From: Drew Adams > Cc: help-gnu-emacs@gnu.org > > If the default value of face `line-number-current-line' > looked different from that of face `line-number' then > there would be little need to pose the question of whether > you can highlight the current line number differently. This face is by default the same as line-number because of 2 reasons: . linum-mode did the same . using a different face makes redisplay slightly slower (because it disallows some redisplay optimizations) > To find the face used, I use `list-faces-display' and look > for either a face name that is a likely candidate > (`line-number' is pretty obvious, in this case) or a face > appearance that matches what I see. There are other places where this doesn't work, e.g. on the mode line.