From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#40507: 26.2; truncate-lines does not respect line-height Date: Wed, 08 Apr 2020 17:16:21 +0300 Message-ID: <83ftdeoyfe.fsf@gnu.org> References: Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="119166"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 40507@debbugs.gnu.org To: ndame Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Apr 08 16:17:11 2020 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 1jMBVu-000Uuo-Ro for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 08 Apr 2020 16:17:10 +0200 Original-Received: from localhost ([::1]:36638 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jMBVt-0007rg-Oo for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 08 Apr 2020 10:17:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49181) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jMBVm-0007rT-O3 for bug-gnu-emacs@gnu.org; Wed, 08 Apr 2020 10:17:03 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jMBVl-00073m-Pk for bug-gnu-emacs@gnu.org; Wed, 08 Apr 2020 10:17:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:41230) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jMBVl-00073c-Mm for bug-gnu-emacs@gnu.org; Wed, 08 Apr 2020 10:17:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jMBVl-0003QG-Iz for bug-gnu-emacs@gnu.org; Wed, 08 Apr 2020 10:17:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 08 Apr 2020 14:17:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 40507 X-GNU-PR-Package: emacs Original-Received: via spool by 40507-submit@debbugs.gnu.org id=B40507.158635539213098 (code B ref 40507); Wed, 08 Apr 2020 14:17:01 +0000 Original-Received: (at 40507) by debbugs.gnu.org; 8 Apr 2020 14:16:32 +0000 Original-Received: from localhost ([127.0.0.1]:52767 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jMBVI-0003P6-Aq for submit@debbugs.gnu.org; Wed, 08 Apr 2020 10:16:32 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:33975) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jMBVF-0003Op-Uw; Wed, 08 Apr 2020 10:16:30 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:54628) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jMBVA-0006hl-FK; Wed, 08 Apr 2020 10:16:24 -0400 Original-Received: from [176.228.60.248] (port=1833 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jMBV9-0002Mk-GJ; Wed, 08 Apr 2020 10:16:24 -0400 In-Reply-To: (message from ndame on Wed, 8 Apr 2020 15:51:09 +0200 (CEST)) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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:178137 Archived-At: severity 40507 wishlist thanks > From: ndame > Date: Wed, 8 Apr 2020 15:51:09 +0200 (CEST) > > Even if the newline is not on screen, it should affect the height of the truncated > line, because that's why the package developer added line-height to the newline, > so the line has some spacing. That's not what this feature was designed for. It is conceptually the same as having a character in a line whose height is greater than those of others: the line's hight will be increased only if that taller character is displayed. The line-height property you put on a newline is basically a means to force the newline character have some specified height, even though the newline doesn't have a glyph with a definite metrics. That's why this property is placed on a newline, not on any other character. In terms of the implementation, the feature you expected would require the display engine consider characters that are not visible in the window, something that the display code tries hard to avoid doing (so it could be faster).