From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Pixel-based display functions Date: Wed, 11 Feb 2015 17:49:12 +0200 Message-ID: <83bnl078jr.fsf@gnu.org> References: <54CE6BD2.8000402@gmx.at> <8361bliin0.fsf@gnu.org> <83386piiby.fsf@gnu.org> <87oap9yoti.fsf@building.gnus.org> <874mqzvnwo.fsf@building.gnus.org> <83h9uzeb4a.fsf@gnu.org> <87bnl7jrr7.fsf@building.gnus.org> <831tm3dt8u.fsf@gnu.org> <87k2zvgj4d.fsf@building.gnus.org> <83siejcahb.fsf@gnu.org> <83sieiar6i.fsf@gnu.org> <83oap5c480.fsf@gnu.org> <87d25lc3xu.fsf@building.gnus.org> <877fvtc2qj.fsf@building.gnus.org> <83wq3s9rmr.fsf@gnu.org> <878ug72064.fsf@building.gnus.org> <838ug79h3x.fsf@gnu.org> <87egpytlrk.fsf@building.gnus.org> <83d25h938i.fsf@gnu.org> <87r3txqajk.fsf@building.gnus.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1423669885 9611 80.91.229.3 (11 Feb 2015 15:51:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 11 Feb 2015 15:51:25 +0000 (UTC) Cc: rudalics@gmx.at, emacs-devel@gnu.org To: Lars Ingebrigtsen Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Feb 11 16:51:10 2015 Return-path: Envelope-to: ged-emacs-devel@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 1YLZZC-0000H5-Lz for ged-emacs-devel@m.gmane.org; Wed, 11 Feb 2015 16:51:06 +0100 Original-Received: from localhost ([::1]:45642 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YLZZC-00078e-9A for ged-emacs-devel@m.gmane.org; Wed, 11 Feb 2015 10:51:06 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49533) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YLZXa-0005FB-Sm for emacs-devel@gnu.org; Wed, 11 Feb 2015 10:49:30 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YLZXX-0005tz-3p for emacs-devel@gnu.org; Wed, 11 Feb 2015 10:49:26 -0500 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:47280) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YLZXW-0005sp-R2 for emacs-devel@gnu.org; Wed, 11 Feb 2015 10:49:23 -0500 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0NJM00F006M2C000@a-mtaout22.012.net.il> for emacs-devel@gnu.org; Wed, 11 Feb 2015 17:49:20 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NJM00EVK6M7ZC90@a-mtaout22.012.net.il>; Wed, 11 Feb 2015 17:49:20 +0200 (IST) In-reply-to: <87r3txqajk.fsf@building.gnus.org> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 X-Received-From: 80.179.55.172 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:182895 Archived-At: > From: Lars Ingebrigtsen > Cc: rudalics@gmx.at, emacs-devel@gnu.org > Date: Wed, 11 Feb 2015 16:31:11 +1100 > > Eli Zaretskii writes: > > > Well, you insert those lines into the buffer yourself, right? Can you > > find the longest line while you are at it, and insert only it? > > AFAICS, that's the only way of making window-text-pixel-size do its > > job faster: by making the region FROM..TO it needs to traverse > > smaller. > > Well, I don't know how long the line is (in pixels) in the first > place. Only calling `window-text-pixel-size' will tell me, right? No, I meant the longest in characters. > It's not an unusual case, but I don't think there would be much of a > speed up in total, though. It depends on how many lines at a time, on the average, you are inserting in a temp buffer.