From: Eli Zaretskii <eliz@gnu.org>
To: Vladimir Kazanov <vekazanov@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: [PATCH] User-defined fringe tooltips (a request for review)
Date: Wed, 27 Mar 2024 14:14:27 +0200 [thread overview]
Message-ID: <86le63j2ho.fsf@gnu.org> (raw)
In-Reply-To: <CAAs=0-1JKV5GVzk6_s6eFogyJccKBvjyxxnzf7K5Lb1BFiHxbQ@mail.gmail.com> (message from Vladimir Kazanov on Tue, 26 Mar 2024 22:16:02 +0000)
> From: Vladimir Kazanov <vekazanov@gmail.com>
> Date: Tue, 26 Mar 2024 22:16:02 +0000
> Cc: emacs-devel@gnu.org
>
> > However, I think there's an easy way of making the implementation
> > easier: just introduce a new overlay property called, say,
> > fringe-help-echo, and put that property on the same text as the
> > display property which produces the fringe. Then the code in
> > note_fringe_highlight should simply check if the text which yielded
> > the fringe bitmap also has this special property on it, and if so,
> > display the tooltip.
>
> Maybe an even easier solution would work:
>
> 1. Record buffer position of the fringe display spec in struct it.
> Then move it to glyph_row the same way user_fringe_bitmap_id's are
> copied over.
When you say "move it", what is "it" in this case?
> 2. In note_fringe_highlight it becomes easy to retrieve the fringe
> display spec using a single call to get_char_property_and_overlay(),
> no need to iterate over a line, or have the implementation detail leak
> into text properties.
Why do you need to retrieve the display spec in note_fringe_highlight?
> What I don't really understand is whether I should handle overlays
> with after-string/before-string properties.
Ideally, yes. Is there some complication there that would make those
overlays special?
> Should I just go through all overlays touching the spec position and
> parse into the after-string/before-string as well?
Not sure I understand the question, but maybe if you answer the ones
above, I will understand, or this question will answer itself.
> Pardon the many questions, display code has many moving parts.
No need to apologize. Thanks for working on this.
next prev parent reply other threads:[~2024-03-27 12:14 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-19 19:38 [PATCH] User-defined fringe tooltips (a request for review) Vladimir Kazanov
2023-12-20 12:31 ` Eli Zaretskii
2023-12-21 16:51 ` Vladimir Kazanov
2023-12-21 17:37 ` Eli Zaretskii
2023-12-23 13:28 ` Vladimir Kazanov
2023-12-23 13:40 ` Eli Zaretskii
2023-12-24 11:31 ` Vladimir Kazanov
2023-12-24 16:54 ` Eli Zaretskii
2024-03-25 15:55 ` Vladimir Kazanov
2024-03-25 17:11 ` Eli Zaretskii
2024-03-26 22:16 ` Vladimir Kazanov
2024-03-27 10:59 ` Vladimir Kazanov
2024-03-27 11:25 ` Po Lu
2024-03-27 12:48 ` Vladimir Kazanov
2024-03-27 11:25 ` Po Lu
2024-03-31 8:36 ` Eli Zaretskii
2024-04-07 11:14 ` Vladimir Kazanov
2024-04-07 12:44 ` Eli Zaretskii
2024-04-07 17:07 ` Vladimir Kazanov
2024-04-07 18:40 ` Eli Zaretskii
2024-04-08 14:41 ` Vladimir Kazanov
2024-04-13 9:14 ` Eli Zaretskii
2024-04-13 9:32 ` Vladimir Kazanov
2024-04-13 11:21 ` Eli Zaretskii
2024-04-13 14:53 ` Vladimir Kazanov
2024-04-13 15:47 ` Eli Zaretskii
2024-03-27 12:14 ` Eli Zaretskii [this message]
2024-03-27 12:48 ` Vladimir Kazanov
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