From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: YAMAMOTO Mitsuharu Newsgroups: gmane.emacs.devel Subject: Re: Emacs and Gnome Canvas Date: Sat, 17 Jul 2010 18:25:03 +0900 Organization: Faculty of Science, Chiba University Message-ID: References: <4C3CD120.4040905@swipnet.se> <5A91499A-0470-43FD-9F48-560CEAD3424C@mit.edu> <83wrsyr068.fsf@gnu.org> <83iq4hhjww.fsf@gnu.org> <87sk3lbvv0.fsf@telefonica.net> <83hbk1grnq.fsf@gnu.org> <4C3EBCDC.8050709@swipnet.se> <83d3upgmwj.fsf@gnu.org> <4C3ECB4C.6050208@swipnet.se> <83aaptgly1.fsf@gnu.org> <4C3ED4F9.4080603@swipnet.se> <83630hgi0r.fsf@gnu.org> <4C3EE8D6.3020607@swipnet.se> <8339vlgcax.fsf@gnu.org> <87fwzkbzg8.fsf@telefonica.net> <877hkwag6y.fsf@stupidchicken.com> <4C400B3C.4000203@swipnet.se> <83iq4fg3eb.fsf@gnu.org> <83fwzjg17j.fsf@gnu.org> <4C405398.4010203@swipnet.se> <4C416AC4.6030502@swipnet.se> <4C417580.5090905@swipnet.se> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: dough.gmane.org 1279358724 6263 80.91.229.12 (17 Jul 2010 09:25:24 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 17 Jul 2010 09:25:24 +0000 (UTC) Cc: ofv@wanadoo.es, Eli Zaretskii , cyd@stupidchicken.com, emacs-devel@gnu.org To: Jan =?ISO-8859-1?Q?Dj=E4rv?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jul 17 11:25:22 2010 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Oa3e4-0006XW-0I for ged-emacs-devel@m.gmane.org; Sat, 17 Jul 2010 11:25:20 +0200 Original-Received: from localhost ([127.0.0.1]:37490 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Oa3e3-0001jQ-CE for ged-emacs-devel@m.gmane.org; Sat, 17 Jul 2010 05:25:19 -0400 Original-Received: from [140.186.70.92] (port=54657 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Oa3du-0001jL-94 for emacs-devel@gnu.org; Sat, 17 Jul 2010 05:25:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1Oa3dt-0007F0-9E for emacs-devel@gnu.org; Sat, 17 Jul 2010 05:25:10 -0400 Original-Received: from mathmail.math.s.chiba-u.ac.jp ([133.82.132.2]:54345) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Oa3dq-0007ET-PW; Sat, 17 Jul 2010 05:25:07 -0400 Original-Received: from church.math.s.chiba-u.ac.jp (church [133.82.132.36]) by mathmail.math.s.chiba-u.ac.jp (Postfix) with ESMTP id 547CCC0560; Sat, 17 Jul 2010 18:25:03 +0900 (JST) In-Reply-To: <4C417580.5090905@swipnet.se> User-Agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (=?ISO-8859-4?Q?Shij=F2?=) APEL/10.6 Emacs/22.3 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI) X-detected-operating-system: by eggs.gnu.org: NetBSD 3.0 (DF) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:127503 Archived-At: >>>>> On Sat, 17 Jul 2010 11:18:56 +0200, Jan Dj=E4rv = said: >>>> The whole area, or divide the updated area to some collection of >>>> rectangles? The former is too inefficient for small updates. >>=20 >>> No it is not, this is how Gtk+ operates all the time, even for >>> small updates. >>=20 >> Isn't GTK+ using the model I've been saying, i.e., drawing only in >> respose to exposure, especially when using cairo? > Gtk+ (or rather Gdk) makes a syntetic expose event. But if you have > a small change, it will do it just for that small change, the same > it does for big changes. Sorry, I don't understand. Does GTK+ or GDK do double-buffering for drawings outside the handler of (possibly synthetic) expose events? YAMAMOTO Mitsuharu mituharu@math.s.chiba-u.ac.jp