From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Keith David Bershatsky Newsgroups: gmane.emacs.devel Subject: Re: Test to determine character left-overhangs a tab stretch. Date: Mon, 12 Nov 2018 14:22:20 -0800 Message-ID: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Trace: blaine.gmane.org 1542061248 11020 195.159.176.226 (12 Nov 2018 22:20:48 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 12 Nov 2018 22:20:48 +0000 (UTC) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Nov 12 23:20:44 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gMKZX-0002kH-QT for ged-emacs-devel@m.gmane.org; Mon, 12 Nov 2018 23:20:44 +0100 Original-Received: from localhost ([::1]:51005 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gMKbe-0006tB-AE for ged-emacs-devel@m.gmane.org; Mon, 12 Nov 2018 17:22:54 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36151) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gMKbX-0006sk-KK for emacs-devel@gnu.org; Mon, 12 Nov 2018 17:22:48 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gMKbR-0002Oy-Op for emacs-devel@gnu.org; Mon, 12 Nov 2018 17:22:47 -0500 Original-Received: from gateway36.websitewelcome.com ([50.116.125.2]:21704) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gMKbP-0001QI-C6 for emacs-devel@gnu.org; Mon, 12 Nov 2018 17:22:39 -0500 Original-Received: from cm10.websitewelcome.com (cm10.websitewelcome.com [100.42.49.4]) by gateway36.websitewelcome.com (Postfix) with ESMTP id DCBC8400E6AF0 for ; Mon, 12 Nov 2018 15:31:00 -0600 (CST) Original-Received: from gator3053.hostgator.com ([50.87.144.69]) by cmsmtp with SMTP id MKb8gq1wxBcCXMKb8gzP8H; Mon, 12 Nov 2018 16:22:22 -0600 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lawlist.com ; s=default; h=Content-Type:MIME-Version:Subject:Cc:To:From:Message-ID:Date: Sender:Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=Lp+3eTUGbDiuEebEpOr2UIjj7NiDoqHps24qsbVriZ4=; b=L/pxLgGWCcUr78pybM2qUtKf5W AeQJmt9KLQcbGz/FKmU2K8j4ujH3XlZYLFiVauRtfAeie0ma+6HXLw/660Yx4KJmFEkucHXHMsRre Sjno2ifGmS9fF3Fm7BK4e0Wqi5ez84RfF1v96U8yX/B7ty/rxJCUGAB0+wQpVxbWNg61RfyfGHBsU JwysveuVgp4PdIVFF9g+MN2g7G7DK0BNwXbNp+QRm236YujI+BWmhhzUO1VaJbjponbRgCEfuQuEe LnALzg69WfqOWdZYSMhYPYKa5vXsJaLOnBi29Hx0Yo5xgH34ttKgcet4ehI2bwl75NDcAZFcCDD6Y gGUEEzrQ==; Original-Received: from cpe-45-48-239-195.socal.res.rr.com ([45.48.239.195]:54113 helo=server.local) by gator3053.hostgator.com with esmtpsa (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.91) (envelope-from ) id 1gMKb7-000QPu-WE; Mon, 12 Nov 2018 16:22:22 -0600 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator3053.hostgator.com X-AntiAbuse: Original Domain - gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lawlist.com X-BWhitelist: no X-Source-IP: 45.48.239.195 X-Source-L: No X-Exim-ID: 1gMKb7-000QPu-WE X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: cpe-45-48-239-195.socal.res.rr.com (server.local) [45.48.239.195]:54113 X-Source-Auth: lawlist X-Email-Count: 1 X-Source-Cap: bGF3bGlzdDtsYXdsaXN0O2dhdG9yMzA1My5ob3N0Z2F0b3IuY29t X-Local-Domain: yes X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 50.116.125.2 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.devel:231106 Archived-At: Thank you, Eli, reviewing and responding to this particular thread. I will continue studying draw_glyphs in the coming days with an eye towards pinpointing the circumstance when a preceding tab stretch is drawn anew upon a cursor being placed on the subsequent character. As always, your help is greatly appreciated. ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; > Date: [11-12-2018 08:13:29] <12 Nov 2018 18:13:29 +0200> > From: Eli Zaretskii > To: Keith David Bershatsky > CC: emacs-devel@gnu.org > Subject: Re: Test to determine character left-overhangs a tab stretch. > > * * * > > Not sure what you are asking, but the logic for deciding when to > redraw due to overhang is entirely inside draw_glyphs, so you could do > the same as what it does.