From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Mike Kupfer Newsgroups: gmane.emacs.devel Subject: the window tree, window-combination-limit Date: Wed, 30 Nov 2016 21:08:09 -0800 Message-ID: <20822.1480568889@allegro.localdomain> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1480568907 6801 195.159.176.226 (1 Dec 2016 05:08:27 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 1 Dec 2016 05:08:27 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Dec 01 06:08:22 2016 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 1cCJba-0000hL-4w for ged-emacs-devel@m.gmane.org; Thu, 01 Dec 2016 06:08:22 +0100 Original-Received: from localhost ([::1]:48132 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cCJbc-00019a-4G for ged-emacs-devel@m.gmane.org; Thu, 01 Dec 2016 00:08:24 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:41679) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cCJbV-00019S-Rl for emacs-devel@gnu.org; Thu, 01 Dec 2016 00:08:19 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cCJbT-0003vh-3v for emacs-devel@gnu.org; Thu, 01 Dec 2016 00:08:17 -0500 Original-Received: from shell1.rawbw.com ([198.144.192.42]:58953) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cCJbS-0003us-Pc for emacs-devel@gnu.org; Thu, 01 Dec 2016 00:08:15 -0500 Original-Received: from allegro.localdomain (m208-249.dsl.rawbw.com [198.144.208.249]) by shell1.rawbw.com (8.15.1/8.15.1) with ESMTP id uB158AgC057491 for ; Wed, 30 Nov 2016 21:08:10 -0800 (PST) (envelope-from m.kupfer@acm.org) X-Authentication-Warning: shell1.rawbw.com: Host m208-249.dsl.rawbw.com [198.144.208.249] claimed to be allegro.localdomain X-Mailer: MH-E 8.6; nmh 1.6; GNU Emacs 25.1.90 X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 198.144.192.42 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:209863 Archived-At: The discussion for bug 25055 mentioned the variable window-combination-resize. Since I frequently use balance-windows after splitting or deleting a window, window-combination-resize looked worth investigating. Its docstring (in 25.1.90) says This variable takes no effect if the variable =E2=80=98window-combination= -limit=E2=80=99 is non-nil. so I also looked at window-combination-limit. I have a couple questions as a result. The default value for window-combination-limit is 'window-size', which is documented as =E2=80=98window-size=E2=80=99 means that splitting a window for displayin= g a buffer makes a new parent window provided =E2=80=98display-buffer=E2=80=99 i= s supposed to explicitly set the window=E2=80=99s size due to the presence of a =E2=80=98window-height=E2=80=99 or =E2=80=98window-width=E2=80=99 ent= ry in the alist used by =E2=80=98display-buffer=E2=80=99. Otherwise, this value is handled l= ike nil. After several attempts I can parse the first sentence, but I'm having trouble understanding its significance. More generally, as a user, should I care about the window tree and parent windows? A web search on emacs parent window gives me several hits in the Emacs Lisp Reference Manual, but I don't see anything about the window tree in the Emacs Manual. Can someone explain the different values for window-combination-limit in terms of what I would see as a user? Thanks for any illumination. mike "I understand just a little No comprende--it's a riddle" --Wall of Voodoo, "Mexican Radio"