From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#37667: 27.0.50; Tab Bar display problems with more than 5 tabs Date: Tue, 22 Oct 2019 18:16:00 +0300 Message-ID: <834l0024lr.fsf@gnu.org> References: <83o8yrvzgh.fsf@gnu.org> <87imownt6j.fsf@mail.linkov.net> <83eezjrbuj.fsf@gnu.org> <87sgnw2pz3.fsf@mail.linkov.net> <83o8yjke0u.fsf@gnu.org> <87lftnqbmg.fsf@mail.linkov.net> <83h84agytj.fsf@gnu.org> <87tv89opbh.fsf@mail.linkov.net> <83mue1g845.fsf@gnu.org> <83lftlg6zc.fsf@gnu.org> <87lftlk504.fsf@mail.linkov.net> <83eezceir2.fsf@gnu.org> <87pniwuwj5.fsf@mail.linkov.net> <83blufdehy.fsf@gnu.org> <878spj57dk.fsf@mail.linkov.net> <83v9sm8rs3.fsf@gnu.org> <87blubaw63.fsf@mail.linkov.net> <83zhhu34xz.fsf@gnu.org> <8736fl91vp.fsf@mail.linkov.net> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="197293"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 37667@debbugs.gnu.org To: Juri Linkov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Oct 22 17:17:14 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iMvuJ-000pBz-UN for geb-bug-gnu-emacs@m.gmane.org; Tue, 22 Oct 2019 17:17:12 +0200 Original-Received: from localhost ([::1]:60916 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iMvuI-0004ds-Qz for geb-bug-gnu-emacs@m.gmane.org; Tue, 22 Oct 2019 11:17:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55263) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iMvuB-0004dN-HY for bug-gnu-emacs@gnu.org; Tue, 22 Oct 2019 11:17:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iMvuA-0008RX-FJ for bug-gnu-emacs@gnu.org; Tue, 22 Oct 2019 11:17:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51508) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iMvuA-0008R6-BJ for bug-gnu-emacs@gnu.org; Tue, 22 Oct 2019 11:17:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iMvuA-00066F-4Y for bug-gnu-emacs@gnu.org; Tue, 22 Oct 2019 11:17:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 22 Oct 2019 15:17:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 37667 X-GNU-PR-Package: emacs Original-Received: via spool by 37667-submit@debbugs.gnu.org id=B37667.157175737423385 (code B ref 37667); Tue, 22 Oct 2019 15:17:02 +0000 Original-Received: (at 37667) by debbugs.gnu.org; 22 Oct 2019 15:16:14 +0000 Original-Received: from localhost ([127.0.0.1]:60329 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iMvtM-000656-Uw for submit@debbugs.gnu.org; Tue, 22 Oct 2019 11:16:14 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:46119) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iMvtK-00064q-Nt for 37667@debbugs.gnu.org; Tue, 22 Oct 2019 11:16:11 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:58659) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1iMvtF-0007jb-0c; Tue, 22 Oct 2019 11:16:05 -0400 Original-Received: from [176.228.60.248] (port=4612 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1iMvtE-0006ky-6v; Tue, 22 Oct 2019 11:16:04 -0400 In-reply-to: <8736fl91vp.fsf@mail.linkov.net> (message from Juri Linkov on Tue, 22 Oct 2019 01:20:42 +0300) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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" Xref: news.gmane.org gmane.emacs.bugs:169989 Archived-At: > From: Juri Linkov > Cc: 37667@debbugs.gnu.org > Date: Tue, 22 Oct 2019 01:20:42 +0300 > > This is so overwhelming that I'm still struggling with understanding the > details of the display engine. If hscrolling was already implemented > for the header-line, we could just copy the existing solution to the > tab-line. Maybe I should simply sit down and write the code for doing this. > So I looked how packages cope with the requirement of keeping hscrolling > of the header-line in sync with hscrolling of the buffer, and found that > the 'proced' package uses so simple solution that we could just do > the same. This is what it does: > > (defun proced-header-line () > "Return header line for Proced buffer." > (list (propertize " " > 'display > (list 'space :align-to > (line-number-display-width 'columns))) > (if (<= (window-hscroll) (length proced-header-line)) > (replace-regexp-in-string ;; preserve text properties > "\\(%\\)" "\\1\\1" > (substring proced-header-line (window-hscroll)))))) > > i.e. it just cuts scrolled content from the beginning. But that won't work with variable-pitch fonts and with different images for the add and close buttons, would it? Also, doesn't tab-line-format allow faces (which could change font size) and dynamic elements via the likes of :eval, like mode-line does? these would prevent you from finding where to cut the content, no? But if this works, by all means go ahead and install something like that. Thanks.