From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#17678: 24.4.50; Feature Request -- calculate new `window-start` & `window-end` before visual redisplay Date: Wed, 11 Jun 2014 17:58:11 -0400 Message-ID: References: <831tuvz3n8.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; CHARSET=US-ASCII Content-Transfer-Encoding: 7BIT X-Trace: ger.gmane.org 1402523968 23135 80.91.229.3 (11 Jun 2014 21:59:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 11 Jun 2014 21:59:28 +0000 (UTC) Cc: esq@lawlist.com, 17678@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jun 11 23:59:20 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 1WuqYC-0001XO-AU for geb-bug-gnu-emacs@m.gmane.org; Wed, 11 Jun 2014 23:59:20 +0200 Original-Received: from localhost ([::1]:49609 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WuqYC-0007J9-1a for geb-bug-gnu-emacs@m.gmane.org; Wed, 11 Jun 2014 17:59:20 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34048) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WuqY1-0007I6-UJ for bug-gnu-emacs@gnu.org; Wed, 11 Jun 2014 17:59:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WuqXu-0007HW-Cu for bug-gnu-emacs@gnu.org; Wed, 11 Jun 2014 17:59:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:53483) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WuqXu-0007HS-A4 for bug-gnu-emacs@gnu.org; Wed, 11 Jun 2014 17:59:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WuqXt-0004dw-NY for bug-gnu-emacs@gnu.org; Wed, 11 Jun 2014 17:59:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 11 Jun 2014 21:59:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17678 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17678-submit@debbugs.gnu.org id=B17678.140252389817770 (code B ref 17678); Wed, 11 Jun 2014 21:59:01 +0000 Original-Received: (at 17678) by debbugs.gnu.org; 11 Jun 2014 21:58:18 +0000 Original-Received: from localhost ([127.0.0.1]:44633 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WuqXB-0004cX-WD for submit@debbugs.gnu.org; Wed, 11 Jun 2014 17:58:18 -0400 Original-Received: from relais.videotron.ca ([24.201.245.36]:14197) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WuqX9-0004cM-0U for 17678@debbugs.gnu.org; Wed, 11 Jun 2014 17:58:15 -0400 Original-Received: from ceviche.home ([24.201.151.191]) by VL-VM-MR004.ip.videotron.ca (Oracle Communications Messaging Exchange Server 7u4-22.01 64bit (built Apr 21 2011)) with ESMTP id <0N70008PSYD1OVL3@VL-VM-MR004.ip.videotron.ca> for 17678@debbugs.gnu.org; Wed, 11 Jun 2014 17:58:13 -0400 (EDT) Original-Received: by ceviche.home (Postfix, from userid 20848) id 45A3366228; Wed, 11 Jun 2014 17:58:11 -0400 (EDT) In-reply-to: <831tuvz3n8.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) 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:90272 Archived-At: > The display engine changes window-start for several reasons, only one > of them being that point moved off screen. Is there a comment somewhere that documents the cases where it can happen? > I think follow-mode also needs to know when the window-end changes > (which could happen with no changes in window-start). This is > normally known only at the end of window redisplay, IIRC. In the case of follow-mode, I think the best way to handle that is to make it possible for follow-mode to force redisplay to go through the windows in a particular order. Stefan