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Re: How to find out whether an image is displayed anywhere?
From: |
Stefan Monnier |
Subject: |
Re: How to find out whether an image is displayed anywhere? |
Date: |
Thu, 30 Jun 2011 12:34:12 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
> Is there a way to query Emacs whether an image is actually displayed
> anywhere? I looked through image.el, and I couldn't find anything...
There is a way: fontification-functions (aka "jit-lock"). It's a bit
round-about, but with enough work it should be possible to use it for
that purpose (e.g. use a timer to remove the `fontified' property every
N seconds and if it's still nil after an additional M seconds, then turn
off animation. Or maybe better: after the animation timer fires don't
change the image yet but instead only remove the fontified property and
then change the image from fontification-functions).
Stefan