From: Ihor Radchenko <yantar92@posteo.net>
To: numbchild@gmail.com
Cc: Org mode <emacs-orgmode@gnu.org>
Subject: Re: [QUESTION] Hope to improve the `org-set-font-lock-defaults` performance by lazy and limit to current visible area
Date: Thu, 25 May 2023 06:40:13 +0000 [thread overview]
Message-ID: <874jo0ykvm.fsf@localhost> (raw)
In-Reply-To: <646ee2c7.170a0220.bc877.0cfa@mx.google.com>
"Christopher M. Miles" <numbchild@gmail.com> writes:
> I'm the developer of Org mode package "org-link-beautify"
> https://repo.or.cz/org-link-beautify.git . The package main theory
> is to use org-link-parameters `:activate-func` to do link file preview
> with generating thumbnail images or file content etc.
>
> But I found it's slow one some big Org file and slow on small Org file
> when previewing has a lot.
> ...
> I can see the `org-mode` invoked `org-set-font-lock-defaults` soon when
> `org-mode` enabled. I hope the link `:activate-func` function can be
> called only on link elements which is VISIBLE (means unfolded subtrees
> or similar). So org-mode don't need to render all buffer links at
> beginning soon. Instead render them as needed as unfolded. (Maybe I read
> source code without fully understand the code. If so, correct me,
> thanks.)
Emacs fontification, by default, only requests fontification of the text
visible on screen. That's what LIMIT argument to `font-lock-keywords'
MATCHER function is for. Org mode obeys LIMIT.
If you are seeing fontification being requested for invisible part of
buffer or parts of buffer outside screen, it is likely caused by some
third-party package forcing the fontification.
As usual, try emacs -Q + minimal set of loaded packages and see if you
can reproduce the problem.
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
next prev parent reply other threads:[~2023-05-25 6:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-25 4:13 [QUESTION] Hope to improve the `org-set-font-lock-defaults` performance by lazy and limit to current visible area Christopher M. Miles
2023-05-25 6:40 ` Ihor Radchenko [this message]
2023-05-25 7:06 ` [SOLVED] " Christopher M. Miles
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.orgmode.org/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=874jo0ykvm.fsf@localhost \
--to=yantar92@posteo.net \
--cc=emacs-orgmode@gnu.org \
--cc=numbchild@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).