Re: File Extension Preview

[Christian Neumair <cneumair gnome org>]

Am Sonntag, den 30.09.2007, 13:23 +0200 schrieb Jens Frederich:
> I've a little question.
> We would register own file extensions in nautilus. For example we have
> the extension *.vgi or *.vgl and would provide a own preview image.
> We can we do that, please? With a nautilus extension?

You'll have to

a) define a MIME type for your extension [by installing an XML file for
shared-mime-info]

b) code a thumbnail preview application, that accepts at least one
input-related and output-related positional specifier of the following:

%u - input URI
%i - input file name (may not be specified for remote URIs)
%o - output file name (i.e. ~/.thumbnails/...)
%s - size of file to thumbnail

For an example, see totem-video-thumbnailer [1]

c) add a GConf key that links the MIME type with the thumbnailer.

For an example, see the totem-video-thumbnailer MIME type generation
script [2].

 [1]
http://svn.gnome.org/viewcvs/totem/trunk/src/totem-video-thumbnailer.c?revision=4706&view=markup
 [2]
http://svn.gnome.org/viewcvs/totem/trunk/data/schemas.sh?revision=4009&view=markup

-- 
Christian Neumair <cneumair gnome org>