From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#13011: 24.2; Text flickering moving cursor with box around text enabled Date: Thu, 29 Nov 2012 14:06:07 -0500 Message-ID: References: <793025287.20121127114224@virgilio.it> <838v9nx7q1.fsf@gnu.org> <1205106717.20121128161453@virgilio.it> <83a9u1wr3k.fsf@gnu.org> <83vccouzqw.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1354216039 18872 80.91.229.3 (29 Nov 2012 19:07:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 29 Nov 2012 19:07:19 +0000 (UTC) Cc: 13011@debbugs.gnu.org, mario.giovinazzo@virgilio.it To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Nov 29 20:07:28 2012 Return-path: Envelope-to: geb-bug-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 1Te9SJ-0001wQ-Mj for geb-bug-gnu-emacs@m.gmane.org; Thu, 29 Nov 2012 20:07:27 +0100 Original-Received: from localhost ([::1]:45356 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Te9S8-0003B9-7g for geb-bug-gnu-emacs@m.gmane.org; Thu, 29 Nov 2012 14:07:16 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:58676) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Te9Ry-0002lw-W4 for bug-gnu-emacs@gnu.org; Thu, 29 Nov 2012 14:07:10 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Te9Rs-0008NH-Pb for bug-gnu-emacs@gnu.org; Thu, 29 Nov 2012 14:07:06 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:35292) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Te9Rs-0008NC-Mj for bug-gnu-emacs@gnu.org; Thu, 29 Nov 2012 14:07:00 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1Te9Tp-00007t-KI for bug-gnu-emacs@gnu.org; Thu, 29 Nov 2012 14:09:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 29 Nov 2012 19:09:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 13011 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 13011-submit@debbugs.gnu.org id=B13011.1354216091416 (code B ref 13011); Thu, 29 Nov 2012 19:09:01 +0000 Original-Received: (at 13011) by debbugs.gnu.org; 29 Nov 2012 19:08:11 +0000 Original-Received: from localhost ([127.0.0.1]:45543 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1Te9T1-00006f-1R for submit@debbugs.gnu.org; Thu, 29 Nov 2012 14:08:11 -0500 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.182]:1143) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1Te9Sz-00006Y-L5 for 13011@debbugs.gnu.org; Thu, 29 Nov 2012 14:08:09 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av0EAG6Zu09FxKh9/2dsb2JhbABEtBGBCIIVAQEEAVYjBQsLNBIUGA0kiBwFugmQRAOIQppxgViDBw X-IronPort-AV: E=Sophos;i="4.75,637,1330923600"; d="scan'208";a="208764955" Original-Received: from 69-196-168-125.dsl.teksavvy.com (HELO ceviche.home) ([69.196.168.125]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 29 Nov 2012 14:06:08 -0500 Original-Received: by ceviche.home (Postfix, from userid 20848) id C776766127; Thu, 29 Nov 2012 14:06:07 -0500 (EST) In-Reply-To: <83vccouzqw.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 29 Nov 2012 18:42:47 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:67597 Archived-At: > area. The vertical (left and right) borders of the box are drawn > in the same way as when this value is positive. */ > int box_line_width; [...] > I made a provisional change that behaves with left and right borders > like it does with horizontal ones, and it seems to work, at least with > character display (didn't text with images, image slices, composite > characters, etc.). But I'd like to ask Handa-san (CC'ed), who wrote > the code for this feature (almost 12 years ago!), whether he might > remember why the code deliberately makes the left and right borders > behave differently from top and bottom ones. I'm curious as well. The only think that comes to mind is that in most fonts, there's usually some empty pixel-line(s) at the top and the bottom, whereas there often't isn't any empty pixel-lines at all on the left (and/or on the right) side. So there's more risk of overwriting useful pixels on the left&right than at top&bottom. Stefan