From: "Sebastien Vauban" <wxhgmqzgwmuf-geNee64TY+gS+FvcfC7Uqw@public.gmane.org>
To: emacs-orgmode-mXXj517/zsQ@public.gmane.org
Subject: Re: Enriched/Org is a colorful Org
Date: Wed, 10 Apr 2013 22:16:30 +0200 [thread overview]
Message-ID: <86fvyycfa9.fsf@somewhere.org> (raw)
In-Reply-To: 262C4E11-6D4B-4033-A619-1702CC8D0F94@gmail.com
Hi Carsten,
Carsten Dominik wrote:
> On 10.4.2013, at 18:21, Eli Zaretskii <eliz-mXXj517/zsQ@public.gmane.org> wrote:
>>> From: Carsten Dominik <carsten.dominik-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
>>> On 10 apr. 2013, at 11:54, Suvayu Ali <fatkasuvayu+linux-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>>> This request is common enough; every time it comes up overlays are
>>>> proposed as a solution. It would be good if this is available even as a
>>>> library outside of Org.
>>>
>>> Yes, overlays are better.
>>
>> I beg the Org developers to please be very careful when introducing
>> expensive display features such as overlays into Org. Org already
>> puts the Emacs display engine to its limits in many of its popular
>> features;
>
> this is interesting input, I was not aware of this. Has this been discussed
> before, can you point me to relevant threads, and what are the symptoms of the
> display engine being at its limits?
>
>> adding overlays to this mess might be too much.
I guess Eli simply means, in a general way, that overlays do negatively impact
display performance, as you said as well a couple of times:
╭────
│ From: Carsten Dominik <carsten.dominik-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
│ Subject: Re: performance problems with drawers
│ Newsgroups: gmane.emacs.orgmode
│ To: Al <gmane00-4hnwnHkw6MReoWH0uzbU5w@public.gmane.org>
│ Cc: emacs-orgmode-mXXj517/zsQ@public.gmane.org
│ Date: Wed, 8 Jul 2009 07:05:53 +0200 (3 years, 39 weeks, 3 days ago)
│
│ Hi Al,
│
│ first of all, I cannot reproduce the fact that drawers have such
│ a major influence on time, wit a test file that I created to
│ be similar to what you describe.
│
│ There is a way to speed up drawer handling, by using text properties
│ instead of overlays. How have some vague plans to do this, but nothing
│ concrete or soon.
│
│ - Carsten
╰────
and
╭────
│ From: Carsten Dominik <carsten.dominik-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
│ Subject: Re: fontification and icon issues
│ Newsgroups: gmane.emacs.orgmode
│ To: David O'Toole <dto1138-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
│ Cc: emacs-orgmode-mXXj517/zsQ@public.gmane.org
│ Date: Thu, 24 Sep 2009 10:46:24 +0100 (3 years, 28 weeks, 2 days ago)
│
│ On Sep 22, 2009, at 4:11 PM, David O'Toole wrote:
│ > [...]
│ >
│ > 2. using add-text-properties to specify a display property (or even just
│ > a face) for any part of an org headline text kills the fontification of
│ > the rest of the text (TODO keyword and leading stars unaffected.) I'm
│ > trying to use font-lock-add-keywords to display the images.
│
│ Can you make an example file, and maybe a small function that does set these
│ properties, so that I can see what you mean?
│
│ - Carsten
│
│ > Maybe I should use overlays instead?
│
│ This can be done, but if every line in a very large file gets
│ an overlay, performance is severely degraded.
│
│ - Carsten
╰────
>> I don't know enough about Org to understand why overlays are being
>> considered instead of text properties, but feel free to describe the
>> issues (preferably on emacs-devel) and start a discussion about the
>> possible alternatives.
Best regards,
Seb
--
Sebastien Vauban
next prev parent reply other threads:[~2013-04-10 20:16 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-10 4:02 Enriched/Org is a colorful Org Jambunathan K
2013-04-10 9:54 ` Suvayu Ali
2013-04-10 10:16 ` Carsten Dominik
2013-04-10 10:39 ` Torsten Wagner
2013-04-10 10:48 ` Suvayu Ali
2013-04-10 10:53 ` Carsten Dominik
2013-04-10 11:20 ` Sebastien Vauban
2013-04-10 11:26 ` Carsten Dominik
2013-04-10 12:15 ` Jambunathan K
2013-04-10 11:57 ` Jambunathan K
2013-04-10 16:21 ` Eli Zaretskii
2013-04-10 16:43 ` Jambunathan K
2013-04-10 17:13 ` Eli Zaretskii
2013-04-10 19:58 ` Carsten Dominik
2013-04-10 20:16 ` Sebastien Vauban [this message]
2013-04-11 2:58 ` Carsten Dominik
2013-04-11 17:30 ` Eli Zaretskii
2013-04-11 22:49 ` Carsten Dominik
2013-04-12 6:41 ` Eli Zaretskii
2013-04-12 7:13 ` Carsten Dominik
2013-04-12 8:31 ` Eli Zaretskii
2013-04-12 10:56 ` Carsten Dominik
2013-04-12 11:49 ` Torsten Wagner
2013-04-12 13:03 ` Eli Zaretskii
2013-04-12 18:00 ` Suvayu Ali
2013-04-12 18:38 ` Eli Zaretskii
2013-04-13 10:50 ` Suvayu Ali
2013-04-12 12:36 ` Eli Zaretskii
2013-04-13 12:24 ` Sean O'Halpin
2013-04-13 14:38 ` Jambunathan K
2013-04-13 15:01 ` Eli Zaretskii
2013-04-12 8:35 ` Bastien
2013-04-12 14:45 ` François Pinard
2013-04-18 20:37 ` Samuel Wales
2013-04-11 17:27 ` Eli Zaretskii
2013-04-11 22:46 ` Carsten Dominik
2013-04-10 12:12 ` Jambunathan K
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