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#14636: 24.3.50.1; window-line-height doesn't seem to work, unless the point is at the end-of-buffer Date: Sun, 16 Jun 2013 20:32:55 +0300 Message-ID: <83d2rmt0zc.fsf@gnu.org> References: <83ip1et3ni.fsf@gnu.org> <83ehc2t2sp.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1371404056 17110 80.91.229.3 (16 Jun 2013 17:34:16 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 16 Jun 2013 17:34:16 +0000 (UTC) Cc: 14636@debbugs.gnu.org To: E Sabof Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jun 16 19:34:16 2013 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 1UoGq7-00025O-L7 for geb-bug-gnu-emacs@m.gmane.org; Sun, 16 Jun 2013 19:34:07 +0200 Original-Received: from localhost ([::1]:55173 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoGq7-0007nl-8h for geb-bug-gnu-emacs@m.gmane.org; Sun, 16 Jun 2013 13:34:07 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37099) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoGq4-0007nG-4v for bug-gnu-emacs@gnu.org; Sun, 16 Jun 2013 13:34:05 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UoGq2-0003k7-2a for bug-gnu-emacs@gnu.org; Sun, 16 Jun 2013 13:34:04 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:54436) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoGq1-0003k2-VO for bug-gnu-emacs@gnu.org; Sun, 16 Jun 2013 13:34:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1UoGq1-0000Ec-JD for bug-gnu-emacs@gnu.org; Sun, 16 Jun 2013 13:34:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 16 Jun 2013 17:34:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 14636 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 14636-submit@debbugs.gnu.org id=B14636.1371403984793 (code B ref 14636); Sun, 16 Jun 2013 17:34:01 +0000 Original-Received: (at 14636) by debbugs.gnu.org; 16 Jun 2013 17:33:04 +0000 Original-Received: from localhost ([127.0.0.1]:48752 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1UoGp6-0000Cj-E4 for submit@debbugs.gnu.org; Sun, 16 Jun 2013 13:33:04 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:65380) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1UoGp4-0000C9-2q for 14636@debbugs.gnu.org; Sun, 16 Jun 2013 13:33:03 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0MOH00900XUZ6700@a-mtaout22.012.net.il> for 14636@debbugs.gnu.org; Sun, 16 Jun 2013 20:32:55 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MOH008IWY2UOW90@a-mtaout22.012.net.il>; Sun, 16 Jun 2013 20:32:55 +0300 (IDT) In-reply-to: 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:75223 Archived-At: > Date: Sun, 16 Jun 2013 18:19:06 +0100 > From: E Sabof > Cc: 14636@debbugs.gnu.org > > You might be confusing posn-at-point (which returns the height of the > character amoung other things), with pos-visible-in-window-p, which returns > t or nil. I'm not confusing them. And pos-visible-in-window-p can return more than just nil or t, see its doc string. > In any case, the height of the character can be different from the height > of the line, so they are not equivalent. They are not equivalent, in the sense that a single call to pos-visible-in-window-p will not do what window-line-height does. You need to call pos-visible-in-window-p twice, for the line you are interested in and the one after it, to get the same information. > So either a) the documentation is incomplete and misleading, or b) > there is a bug in the implementation (which I think is more likely, > given the arbitrary circumstances under which this function does and > doesn't work). There's no bug. It looks arbitrary to you because whether the window display is up-to-date when window-line-height runs is impossible to predict. Take a look at the source of window-line-height, and you will see it.