From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Jan =?UTF-8?Q?Dj=C3=A4rv?= Newsgroups: gmane.emacs.bugs Subject: bug#1867: Resizing window causes text flickering when using antialiased font on X Date: Wed, 05 Oct 2011 19:34:45 +0200 Message-ID: <4E8C9535.4000206@swipnet.se> References: <87ljtgzvgg.fsf@unicorn.lan> <4E8C00C8.9010208@swipnet.se> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1317836109 29143 80.91.229.12 (5 Oct 2011 17:35:09 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 5 Oct 2011 17:35:09 +0000 (UTC) Cc: 1867@debbugs.gnu.org, lbsmtp@gmail.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Oct 05 19:35:02 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RBVN0-0008Cl-Mp for geb-bug-gnu-emacs@m.gmane.org; Wed, 05 Oct 2011 19:35:02 +0200 Original-Received: from localhost ([::1]:42842 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RBVN0-0007dO-85 for geb-bug-gnu-emacs@m.gmane.org; Wed, 05 Oct 2011 13:35:02 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:33008) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RBVMx-0007cp-16 for bug-gnu-emacs@gnu.org; Wed, 05 Oct 2011 13:34:59 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RBVMw-0001nw-11 for bug-gnu-emacs@gnu.org; Wed, 05 Oct 2011 13:34:59 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:49035) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RBVMv-0001ns-UW for bug-gnu-emacs@gnu.org; Wed, 05 Oct 2011 13:34:57 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1RBVMz-0002k8-JU for bug-gnu-emacs@gnu.org; Wed, 05 Oct 2011 13:35:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Jan =?UTF-8?Q?Dj=C3=A4rv?= Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 05 Oct 2011 17:35:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 1867 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 1867-submit@debbugs.gnu.org id=B1867.131783609810534 (code B ref 1867); Wed, 05 Oct 2011 17:35:01 +0000 Original-Received: (at 1867) by debbugs.gnu.org; 5 Oct 2011 17:34:58 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1RBVMv-0002jq-Fk for submit@debbugs.gnu.org; Wed, 05 Oct 2011 13:34:57 -0400 Original-Received: from smtprelay-b11.telenor.se ([62.127.194.20]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1RBVMt-0002jd-7Z for 1867@debbugs.gnu.org; Wed, 05 Oct 2011 13:34:56 -0400 Original-Received: from iph2.telenor.se (iph2.telenor.se [195.54.127.133]) by smtprelay-b11.telenor.se (Postfix) with ESMTP id 29C7AEA87E for <1867@debbugs.gnu.org>; Wed, 5 Oct 2011 19:34:45 +0200 (CEST) X-SENDER-IP: [85.225.45.201] X-LISTENER: [smtp.bredband.net] X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ao1VAOWUjE5V4S3JPGdsb2JhbABCiTSeXxkBAQEBNzKBUwEBBTgeIgEQCxQBDBYPCQMCAQIBDwwMChQGDQEFAgEBh3u4BIcpBJkUhHmHJg X-IronPort-AV: E=Sophos;i="4.68,492,1312149600"; d="scan'208";a="489101411" Original-Received: from c-c92de155.25-1-64736c10.cust.bredbandsbolaget.se (HELO coolsville.localdomain) ([85.225.45.201]) by iph2.telenor.se with ESMTP; 05 Oct 2011 19:34:44 +0200 Original-Received: from [172.20.199.13] (zeplin [172.20.199.13]) by coolsville.localdomain (Postfix) with ESMTPSA id 3F73E7FA058; Wed, 5 Oct 2011 19:34:44 +0200 (CEST) User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:5.0) Gecko/20110624 Thunderbird/5.0 In-Reply-To: X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Wed, 05 Oct 2011 13:35:01 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) 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:52222 Archived-At: Eli Zaretskii skrev 2011-10-05 12:41: >> Date: Wed, 05 Oct 2011 09:01:28 +0200 >> From: "Jan D." >> Cc: Bo Lin, 1867@debbugs.gnu.org >> >> FWIW, I can't see any text flicker in the scenario above. However, the >> hollow cursor in the non-selected windows do flicker which indicates >> that there is some redrawing going on. > > The way redisplay is written, _any_ change to dimensions of _any_ > window sets a flag that will cause a thorough redisplay of all the > windows on all the visible frames. However, I'd expect that redisplay > of any window not affected by the resizing be limited to redrawing the > cursor. > > So even when antialiased fonts are used, I wouldn't expect any > flickering, because Emacs should notice that the window didn't change > at all. Unless, that is, redrawing the cursor on X involves redrawing > parts of the window text. Does it? Yes, but just the character under the cursor. Jan D.