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#18923: Alternative scrolling model Date: Mon, 03 Nov 2014 18:03:32 +0200 Message-ID: <83r3xkw9t7.fsf@gnu.org> References: <87wq7e9zcn.fsf@gmail.com> <87vbmy9wdx.fsf@gmail.com> <87sii1ahy9.fsf@gmail.com> <87lhnt9p1b.fsf@gmail.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1415030667 10858 80.91.229.3 (3 Nov 2014 16:04:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 3 Nov 2014 16:04:27 +0000 (UTC) Cc: 18923@debbugs.gnu.org, esabof@gmail.com To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Nov 03 17:04:19 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 1XlK79-00068I-AH for geb-bug-gnu-emacs@m.gmane.org; Mon, 03 Nov 2014 17:04:19 +0100 Original-Received: from localhost ([::1]:35642 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlK78-0006GO-Nv for geb-bug-gnu-emacs@m.gmane.org; Mon, 03 Nov 2014 11:04:18 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:43844) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlK70-0006EN-Hl for bug-gnu-emacs@gnu.org; Mon, 03 Nov 2014 11:04:15 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XlK6s-0002Y9-Hp for bug-gnu-emacs@gnu.org; Mon, 03 Nov 2014 11:04:10 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:50522) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlK6s-0002Xv-Fg for bug-gnu-emacs@gnu.org; Mon, 03 Nov 2014 11:04:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XlK6s-0002zc-7L for bug-gnu-emacs@gnu.org; Mon, 03 Nov 2014 11:04:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 03 Nov 2014 16:04:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18923 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18923-submit@debbugs.gnu.org id=B18923.141503063211486 (code B ref 18923); Mon, 03 Nov 2014 16:04:02 +0000 Original-Received: (at 18923) by debbugs.gnu.org; 3 Nov 2014 16:03:52 +0000 Original-Received: from localhost ([127.0.0.1]:47735 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XlK6h-0002zB-Kk for submit@debbugs.gnu.org; Mon, 03 Nov 2014 11:03:51 -0500 Original-Received: from mtaout26.012.net.il ([80.179.55.182]:37310) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XlK6e-0002yw-C4 for 18923@debbugs.gnu.org; Mon, 03 Nov 2014 11:03:49 -0500 Original-Received: from conversion-daemon.mtaout26.012.net.il by mtaout26.012.net.il (HyperSendmail v2007.08) id <0NEH00P000A80S00@mtaout26.012.net.il> for 18923@debbugs.gnu.org; Mon, 03 Nov 2014 18:02:10 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by mtaout26.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NEH00HNS0JMMG80@mtaout26.012.net.il>; Mon, 03 Nov 2014 18:02:10 +0200 (IST) 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:95431 > From: Stefan Monnier > Date: Sun, 02 Nov 2014 21:35:44 -0500 > Cc: 18923@debbugs.gnu.org > > >> BTW, have you looked at the C code of scroll-up/down at all? > >> I'm not familiar with it, but it does do pixelwise scrolling to some > >> extent as well (tho IIUC only for really tall lines such as those with > >> images), so I'm curious to know exactly how the two compare. > > I have tried different settings, but they haven't quite worked for me. > > But I definitely need to become familiar with the existing > > implementation. > > I don't think the behavior you're looking for can be obtained from the > current C code, indeed, but maybe the needed changes are limited. The current implementation only uses vscroll for partially visible screen lines (a.k.a. "glyph rows"). This is by design (and consistent with what line-move does), but we can decide to change that, if that's what people want.