From: Po Lu <luangruo@yahoo.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Allowing point to be outside the window?
Date: Sun, 28 Nov 2021 21:10:25 +0800 [thread overview]
Message-ID: <87v90c5su6.fsf@yahoo.com> (raw)
In-Reply-To: <83pmqkwi6r.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 28 Nov 2021 14:58:20 +0200")
Eli Zaretskii <eliz@gnu.org> writes:
>> Hmm, thanks. One small question though: what should I do in order to
>> make a window's cursor invisible?
> Prevent display_and_set_cursor from being called, I presume?
What if the cursor is already displayed? Is it OK to call
erase_phys_cursor from redisplay_window?
> There's also set_cursor_from_row, which calculates where to display
> the cursor, and something should be done about that to indicate that
> the cursor is not shown at all.
set_cursor_from_row can just immediately return if I indicate that the
cursor is invisible because point is before or after window start,
correct?
> display_and_set_cursor is also called from dispnew.c, so I'm not sure
> redisplay_window alone will be enough.
Hmm, thanks, I think I might put that logic in display_and_set_cursor
instead.
> And why only "before window start"? what about beyond window's end?
I don't know how to get that information inside redisplay_window.
AFAIU, it's not available until redisplay completes.
> I think you need to add something to the struct window's 'cursor' and
> 'phys_cursor' members.
Okay, I'll do that.
> You cannot express coordinates outside of the window as X/Y.
I meant "X/Y" question as in a question that goes somewhat like this:
- User wants to do X.
- User doesn't know how to do X, but thinks they can fumble their way
to a solution if they can just manage to do Y.
- User doesn't know how to do Y either.
- User asks for help with Y.
- Others try to help user with Y, but are confused because Y seems like
a strange problem to want to solve.
- After much interaction and wasted time, it finally becomes clear that
the user really wants help with X, and that Y wasn't even a suitable
solution for X.
I hope this isn't the case here, but I can't explain what the "X" here
is in terms more specific than "I want the ability to have point outside
the window".
Thanks in advance.
next prev parent reply other threads:[~2021-11-28 13:10 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 [this message]
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
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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