From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#16691: 24.3.50; emacs_backtrace.txt Date: Sun, 09 Feb 2014 22:20:19 +0200 Message-ID: <83fvnsujgc.fsf@gnu.org> References: <83a9e1wg93.fsf@gnu.org> <52F68E36.7070204@gmx.at> <83zjm1uz1g.fsf@gnu.org> <52F760B0.6050003@gmx.at> <83lhxkuu3x.fsf@gnu.org> <52F7CFC4.2030905@gmx.at> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1391977268 313 80.91.229.3 (9 Feb 2014 20:21:08 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 9 Feb 2014 20:21:08 +0000 (UTC) Cc: 16691@debbugs.gnu.org, lekktu@gmail.com To: martin rudalics Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Feb 09 21:21:14 2014 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 1WCasM-0002IU-Is for geb-bug-gnu-emacs@m.gmane.org; Sun, 09 Feb 2014 21:21:14 +0100 Original-Received: from localhost ([::1]:52007 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WCasM-0003ub-1h for geb-bug-gnu-emacs@m.gmane.org; Sun, 09 Feb 2014 15:21:14 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40599) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WCasF-0003uV-4y for bug-gnu-emacs@gnu.org; Sun, 09 Feb 2014 15:21:11 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WCasA-0006Dw-Ip for bug-gnu-emacs@gnu.org; Sun, 09 Feb 2014 15:21:07 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:46839) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WCasA-0006Ds-FA for bug-gnu-emacs@gnu.org; Sun, 09 Feb 2014 15:21:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WCas9-0001wi-Sd for bug-gnu-emacs@gnu.org; Sun, 09 Feb 2014 15:21:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 09 Feb 2014 20:21:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 16691 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 16691-submit@debbugs.gnu.org id=B16691.13919772437448 (code B ref 16691); Sun, 09 Feb 2014 20:21:01 +0000 Original-Received: (at 16691) by debbugs.gnu.org; 9 Feb 2014 20:20:43 +0000 Original-Received: from localhost ([127.0.0.1]:60858 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WCarr-0001w2-2k for submit@debbugs.gnu.org; Sun, 09 Feb 2014 15:20:43 -0500 Original-Received: from mtaout29.012.net.il ([80.179.55.185]:46977) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WCarm-0001vq-HK for 16691@debbugs.gnu.org; Sun, 09 Feb 2014 15:20:40 -0500 Original-Received: from conversion-daemon.mtaout29.012.net.il by mtaout29.012.net.il (HyperSendmail v2007.08) id <0N0Q00C00W2VHY00@mtaout29.012.net.il> for 16691@debbugs.gnu.org; Sun, 09 Feb 2014 22:22:40 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by mtaout29.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0N0Q008TGWLS5G50@mtaout29.012.net.il>; Sun, 09 Feb 2014 22:22:40 +0200 (IST) In-reply-to: <52F7CFC4.2030905@gmx.at> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.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:85099 Archived-At: > Date: Sun, 09 Feb 2014 19:58:12 +0100 > From: martin rudalics > CC: lekktu@gmail.com, drew.adams@oracle.com, 16691@debbugs.gnu.org > > - short used[1 + LAST_AREA]: What does "Number of glyphs actually filled > in areas." mean? Does this mean that for example the first element is > zero when the left margin doesn't exist? Not necessarily: the margin could exist, but be empty. And note that in frame glyph matrices (used on a TTY), there's only one area: the TEXT_AREA; the marginal areas don't have their glyphs[] arrays allocated. > - int x, y: Where and how are these set for a particular row (including > header- and mode-line) and when and how are these eventually consumed? > This is the greatest mystery for me so far. They are assigned in display_line and display_string. Examples from display_line: row->y = it->current_y; [...] if (it->current_x - it->pixel_width < it->first_visible_x) row->x = x - it->first_visible_x; Mode line and header line are generated from strings, so look in display_mode_line and display_string. Not sure what you mean by "consumed". Consumed by whom and for what purposes? > - int visible_height: "Partially visible rows may be found at the top > and bottom of a window." Is it true that we can draw partially > visible rows at the top of the window? I think this is only possible when a single row is too large to fit a window.