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From: Eli Zaretskii <eliz@gnu.org>
To: Po Lu <luangruo@yahoo.com>
Cc: dick.r.chiang@gmail.com, emacs-devel@gnu.org
Subject: Re: Allowing point to be outside the window?
Date: Sun, 05 Dec 2021 09:12:40 +0200	[thread overview]
Message-ID: <83v9034j9z.fsf@gnu.org> (raw)
In-Reply-To: <87ee6rubcz.fsf@yahoo.com> (message from Po Lu on Sun, 05 Dec 2021 08:46:52 +0800)

> From: Po Lu <luangruo@yahoo.com>
> Cc: emacs-devel@gnu.org,  dick <dick.r.chiang@gmail.com>
> Date: Sun, 05 Dec 2021 08:46:52 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > But you could perhaps avoid a separate flag if you'd set
> > w->cursor.vpos to a negative value when the cursor is outside of the
> > window.
> 
> Actually, it now seems that cursor_visible_p is currently totally
> redundant: cursor.vpos is already -1 when the cursor is supposed to be
> invisible.
> 
> Can that value be relied on?

Depends what for and how you want to rely on it.  It basically says
that the cursor position inside the window is unknown.  The "normal"
redisplay must always calculate some reasonable coordinates and put
them there, otherwise the cursor will not be visible, which is a
display bug.  If that is enough for you, then yes, you can rely on it.



  reply	other threads:[~2021-12-05  7:12 UTC|newest]

Thread overview: 111+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <87ilwd7zaq.fsf.ref@yahoo.com>
2021-11-28  3:07 ` Allowing point to be outside the window? Po Lu
2021-11-28  8:03   ` Eli Zaretskii
2021-11-28  8:13     ` Po Lu
2021-11-28  8:41       ` Eli Zaretskii
2021-11-28 12:47         ` Po Lu
2021-11-28 12:58           ` Eli Zaretskii
2021-11-28 13:10             ` Po Lu
2021-11-28 13:44               ` Eli Zaretskii
2021-11-29  1:47                 ` Po Lu
2021-11-29 13:00                   ` Eli Zaretskii
2021-11-29 13:22                     ` Po Lu
2021-11-29 13:43                       ` Eli Zaretskii
2021-11-30  1:40                         ` Po Lu
2021-11-30 16:49                           ` [External] : " Drew Adams
2021-11-30 17:26                             ` Eli Zaretskii
2021-11-30 18:10                               ` Lars Ingebrigtsen
2021-11-30 18:32                                 ` Eli Zaretskii
2021-11-30 18:49                                 ` Stefan Kangas
2021-11-30 19:21                                   ` Eli Zaretskii
2021-11-30 20:57                                     ` Drew Adams
2021-11-30 23:41                                 ` Daniel Martín
2021-12-01  8:30                                   ` martin rudalics
2021-12-01  9:10                                     ` Juri Linkov
2021-11-30 23:20                               ` Stefan Monnier
2021-12-04 11:18                           ` Po Lu
2021-12-04 12:55                             ` Eli Zaretskii
2021-12-04 13:13                               ` Po Lu
2021-12-04 16:24                                 ` Eli Zaretskii
2021-12-05  0:40                                   ` Po Lu
2021-12-04 17:15                                 ` Eli Zaretskii
2021-12-05  0:45                                   ` Po Lu
2021-12-05  9:03                                     ` Eli Zaretskii
2021-12-06  2:11                                       ` Po Lu
2021-12-06 14:13                                         ` Eli Zaretskii
2021-12-07  2:18                                           ` Po Lu
2021-12-07 13:42                                             ` Eli Zaretskii
2021-12-08  1:17                                               ` Po Lu
2021-12-08 17:14                                                 ` Eli Zaretskii
2021-12-09  0:23                                                   ` Po Lu
2021-12-09  8:02                                                     ` Eli Zaretskii
2021-12-09  9:22                                                       ` Po Lu
2021-12-09 10:02                                                         ` Eli Zaretskii
2021-12-25  6:45                                                       ` Po Lu
2021-12-25  7:07                                                         ` Eli Zaretskii
2022-02-06  7:22                                                         ` Po Lu
2022-02-06 11:34                                                           ` Eli Zaretskii
2022-02-06 11:46                                                             ` Po Lu
2022-02-06 11:55                                                               ` Eli Zaretskii
2022-02-06 12:21                                                                 ` Po Lu
2022-02-06 16:15                                                                   ` Eli Zaretskii
2022-02-07  1:21                                                                     ` Po Lu
2022-02-07  7:21                                                                       ` Po Lu
2022-02-07 13:41                                                                         ` Eli Zaretskii
2022-02-07 13:57                                                                           ` Po Lu
2022-02-07 14:24                                                                             ` Eli Zaretskii
2022-02-08  0:58                                                                               ` Po Lu
2022-02-08 17:08                                                                                 ` Eli Zaretskii
2022-02-09  1:57                                                                                   ` Po Lu
2022-02-10 13:04                                                                                     ` Eli Zaretskii
2022-02-10 13:09                                                                                       ` Po Lu
2021-12-09 11:45                                         ` Eli Zaretskii
2021-12-09 12:19                                           ` Po Lu
2021-12-09 12:45                                             ` Eli Zaretskii
2021-12-04 13:00                             ` dick
2021-12-04 13:14                               ` tomas
2021-12-04 13:19                               ` Po Lu
2021-12-04 13:41                                 ` Eli Zaretskii
2021-12-05  0:46                                   ` Po Lu
2021-12-05  7:12                                     ` Eli Zaretskii [this message]
2021-12-05  7:16                                       ` Po Lu
2021-12-05  8:48                                         ` Eli Zaretskii
2021-12-05  9:15                                           ` Po Lu
2021-12-05  9:25                                             ` Eli Zaretskii
2021-12-05  9:31                                               ` Po Lu
2021-12-05 10:34                                                 ` Eli Zaretskii
2021-12-05 10:37                                                   ` Po Lu
2021-12-04 14:17                                 ` dick
2021-12-04 16:33                                   ` Eli Zaretskii
2021-12-04 17:13                                     ` dick
2021-12-05  0:48                                       ` Po Lu
2021-11-28 14:03       ` Alan Mackenzie
2021-11-28 14:28         ` Eric S Fraga
2021-11-28 14:39           ` Eli Zaretskii
2021-11-28 16:55             ` Eric S Fraga
2021-11-28 14:42         ` dick
2021-11-28 15:39         ` Kévin Le Gouguec
2021-11-28 15:45           ` Eli Zaretskii
2021-11-28 17:14             ` Kévin Le Gouguec
2021-11-28 16:59           ` Eric S Fraga
2021-11-28 17:30             ` Kévin Le Gouguec
2021-11-29  0:34             ` Dmitry Gutov
2021-11-29  0:34         ` Po Lu
2021-12-08  1:45           ` John Ankarström
2021-12-08 12:45             ` Eli Zaretskii
2021-12-08 13:33               ` John Ankarström
2021-12-08 13:38                 ` Po Lu
2021-12-08 13:52                   ` John Ankarström
2021-12-08 14:26                 ` Eli Zaretskii
2021-12-08 16:57                   ` Stefan Monnier
2021-12-08 19:29                     ` Yuri Khan
2021-12-09  0:16                     ` Po Lu
2021-12-08 19:21                 ` Rudolf Schlatte
2021-12-08 19:56                   ` Juri Linkov
2021-12-08 20:05                     ` André A. Gomes
2021-12-08 20:31                     ` Linux console scrollback [ Was: Allowing point to be outside the window? ] Alan Mackenzie
2021-12-09  0:17                   ` Allowing point to be outside the window? Po Lu
2021-12-08 22:25                 ` Kévin Le Gouguec
2021-12-08 23:17                   ` John Ankarström
     [not found] <9603C99D-97E7-4285-A1C1-022191B6F5CC@univie.ac.at>
2021-12-08 18:43 ` Konrad Podczeck
2021-12-08 20:47   ` John Ankarström
2021-12-09 15:34 Konrad Podczeck

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