GNU bug report logs - #20983
11.88.6; Toggling all previews' visibility on/off at once

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: gojjoe <at> gmail.com
To: bug-auctex <at> gnu.org
Subject: 11.88.6; Toggling all previews' visibility on/off at once
Date: Sat, 04 Jul 2015 20:47:12 +0200

Dear All,

This a feature request and a report of a strange behaviour 
of Preview's "preview-at-point".

In Preview, it would be useful to have a function that 
toggles on/off the visibility of all previews in the buffer, 
independently of the position of point. The key word here is 
"toggle", rather than "regenerate".

The function preview-at-point only toggles one preview, and 
only if the point is positioned on the preview. So if one 
only needs to take a quick look at the LaTeX code of a 
couple of formulae above or below point, one must 1. move 
point to the preview, 2. call preview-at-point (or mouse-2)
, 3. take a look and memorize the code of interest, 4. call 
preview-at-point, 5. move point back.  Another option is to 
clear all previews (say in the section) and then regenerate 
them – but this can take much longer time.

I tried to use/reverse engineer both "preview-at-point" and 
"preview-toggle" to build a function that toggles all 
previews at once, but failed (I don't understand how the 
"overlay" argument works). If anyone can suggest a method to 
do this, I'd be very grateful. Otherwise I'll leave this as 
a feature request.

The bug: While investigating the above, I noticed that 
calling "preview-at-point" (C-c C-p C-p) generates an error 
when point is not on a preview and a region is not selected. 
Is this the desired behaviour?


Preview and AUCTeX are great, thank you so much to all of you!
Joe


Emacs  : GNU Emacs 24.5.1 (i686-pc-mingw32)
 of 2015-04-11 on LEG570
Package: 11.88.6

current state:
==============
(setq
 AUCTeX-date "2015-05-08"
 window-system 'w32
 LaTeX-version "2e"
...

Message #8 received at 20983 <at> debbugs.gnu.org (full text, mbox):

From: Arash Esbati <arash <at> gnu.org>
To: gojjoe <at> gmail.com
Cc: 20983 <at> debbugs.gnu.org
Subject: Re: bug#20983: 11.88.6; Toggling all previews' visibility on/off at
 once
Date: Fri, 08 Mar 2024 21:48:20 +0100

gojjoe <at> gmail.com writes:

> Dear All,
>
> This a feature request and a report of a strange behaviour of
> Preview's "preview-at-point".
>
> In Preview, it would be useful to have a function that toggles on/off
> the visibility of all previews in the buffer, independently of the
> position of point. The key word here is "toggle", rather than
> "regenerate".
>
> The function preview-at-point only toggles one preview, and only if
> the point is positioned on the preview. So if one only needs to take a
> quick look at the LaTeX code of a couple of formulae above or below
> point, one must 1. move point to the preview, 2. call preview-at-point
> (or mouse-2)
> , 3. take a look and memorize the code of interest, 4. call
> preview-at-point, 5. move point back.  Another option is to clear all
> previews (say in the section) and then regenerate them – but this can
> take much longer time.
>
> I tried to use/reverse engineer both "preview-at-point" and
> "preview-toggle" to build a function that toggles all previews at
> once, but failed (I don't understand how the "overlay" argument
> works). If anyone can suggest a method to do this, I'd be very
> grateful. Otherwise I'll leave this as a feature request.
>
> The bug: While investigating the above, I noticed that calling
> "preview-at-point" (C-c C-p C-p) generates an error when point is not
> on a preview and a region is not selected. Is this the desired
> behaviour?

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

The principle author of preview-latex is inactive for some time now, so
the package is in sort of maintenance mode.  So unless someone else
provides a complete patch, this feature will not get implemented,
unfortunately.  Therefore I'm closing this report.  We can reopen this
if the situation changes.

> Preview and AUCTeX are great, thank you so much to all of you!

Thank your for the kind words.

Best, Arash

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