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"
...



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