From: dalanicolai <dalanicolai@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: displaying margins leads to Emacs hanging
Date: Sat, 25 Feb 2023 14:17:24 +0100 [thread overview]
Message-ID: <CACJP=3=ewgNbEJDXBO2t60by_BBeMsvwy2Hi4hs5nA009XOs6A@mail.gmail.com> (raw)
In-Reply-To: <83bklikogf.fsf@gnu.org>
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This is great! Indeed, it works perfectly now.
I think using the margins is just much more elegant.
Although, I might have read about this behavior somewhere,
obviously, it was not clear to me that `erase-buffer` does not
remove the overlays. Maybe a warning/reminder about this could
be added in the 'erase-buffer' docstring? What do you think?
I would be happy to create a patch for that (if desired).
Anyway, thanks a lot again Eli, for having a look at it.
Obviously, I really appreciate it.
On Sat, 25 Feb 2023 at 11:51, Eli Zaretskii <eliz@gnu.org> wrote:
> > From: dalanicolai <dalanicolai@gmail.com>
> > Date: Fri, 24 Feb 2023 21:53:35 +0100
> > Cc: emacs-devel@gnu.org
> >
> > B.t.w if someone want to have a look, I'll attach a smaller file here
> where
> > I have just removed about 200 pages of the book text data, so that it is
> > the file is much smaller, but there is still enough date to clearly show
> the
> > 'undesired' behavior.
> >
> > So now, Emacs will not 'hang', but there will still be a clear
> difference in time it
> > takes to update the buffer (between when window margins are displayed,
> > and when they are not).
>
> Your code overwhelms redisplay with an inconceivably huge number of
> overlays that are left from the previous iteration. This one-line
> change makes the code work reasonably fast:
>
> (defun baleen-update2 ()
> ;; (let ((query (minibuffer-contents)))
> ;; (with-current-buffer (get-buffer-create "*baleen*")
> ;; (erase-buffer)
> ;; (baleen-render (baleen-filter test2 query)))))
> (let* ((query (minibuffer-contents))
> (query-length (length query)))
> (if (> (length previous-query) query-length)
> (with-current-buffer (get-buffer-create "*baleen*")
> (erase-buffer)
> (baleen-render (cdr (alist-get query baleen-results nil nil
> #'string=))))
> (let* ((parent-results (unless (< query-length 2)
> (alist-get (substring query 0 -1)
> baleen-results nil nil #'string=)))
> (current-results (if parent-results
> (baleen-filter parent-results query)
> (unless (string-empty-p query)
> (baleen-filter test2 query)))))
> (when current-results
> (with-current-buffer (get-buffer-create "*baleen*")
> (remove-overlays) <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> (erase-buffer)
> (baleen-render current-results))
> (cl-pushnew (cons query current-results) baleen-results :test
> #'string= :key #'car))
>
> (setq previous-query query)))))
>
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next prev parent reply other threads:[~2023-02-25 13:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-24 19:29 displaying margins leads to Emacs hanging dalanicolai
2023-02-24 19:41 ` Eli Zaretskii
2023-02-24 20:26 ` dalanicolai
2023-02-24 20:29 ` Eli Zaretskii
2023-02-24 20:41 ` dalanicolai
2023-02-24 20:53 ` dalanicolai
2023-02-24 21:19 ` dalanicolai
2023-02-24 21:43 ` dalanicolai
2023-02-25 10:51 ` Eli Zaretskii
2023-02-25 13:17 ` dalanicolai [this message]
2023-02-25 13:42 ` Eli Zaretskii
2023-03-06 22:51 ` dalanicolai
2023-02-24 21:25 ` Eli Zaretskii
2023-02-24 21:41 ` dalanicolai
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