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bug#59902: 30.0.50; Image overlay is not updated until the cursor moves
From: |
Ihor Radchenko |
Subject: |
bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay |
Date: |
Thu, 15 Dec 2022 10:24:16 +0000 |
Eli Zaretskii <eliz@gnu.org> writes:
>> > Why was this implementation chosen for whatever feature that produces
>> > images? Emacs doesn't react instantly to changes in disk files that
>> > it visits, and here you expect it to do so. Isn't it possible to
>> > implement this in some other way, like have the program produce its
>> > image data in a temporary Emacs buffer, then use that buffer's
>> > contents for creating an image? Then I believe the updated image will
>> > have a different hash value, and there will be no cache-related
>> > collisions.
>>
>> It could be possible, but looks like unnecessary complication.
>> Also, creating buffers often creates overheads associated with user
>> hooks.
>>
>> I am not sure if something like
>>
>> (let ((revert-without-query '(".")))
>> (with-current-buffer (find-file-noselect file)
>> ;; Do not crown the buffer list.
>> (unless (string-prefix-p " " (buffer-name))
>> (setf (buffer-name) (concat " " (buffer-name))))
>> (buffer-string)))
>>
>> is not going to cause significant slowdowns.
>
> Sorry, you lost me here: how is the above snippet relevant to what I
> proposed as an alternative implementation?
The above snippet creates a buffer with image FILE, reverts it if
necessary (`find-file-noselect' should do it), and returns the image
data that is guaranteed to be up-to-date with the actual file.
--
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>
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, (continued)
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/08
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/08
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/10
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/10
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/10
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/10
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/11
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/11
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/12
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/12
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay,
Ihor Radchenko <=
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Eli Zaretskii, 2022/12/15
- bug#59902: 30.0.50; Image overlay is not updated until the cursor moves to the overlay, Ihor Radchenko, 2022/12/15