Re: Confused about nautilus thumbnails

["A. Walton" <awalton gmail com>]

On Sun, Mar 30, 2008 at 8:29 PM, Nyall <nyall zombiepigs net> wrote:
> I'm trying to create a thumbnailer for .gcs files, using the
>  instructions from
>  http://library.gnome.org/devel/integration-guide/stable/thumbnailer.html.en
>
>  I can get the thumbnailer working fine, and it all shows up nicely in
>  nautilus when the view size is 100%, but when I zoom in on the
>  thumbnails in nautilus they get horribly pixelated. This doesn't happen
>  with image files - I can zoom in and the thumbnails are recreated nicely
>  and look fantastic. So I've been trying to track down what's going
>  wrong.
>
>  What I've found so far is that whenever nautilus calls my thumbnailer,
>  it's requesting a size of 128. This is regardless of the current zoom
>  level in nautilus. Digging a little deeper, I suspect this could be
>  happening with a lot of different thumbnailers - eg, the evince pdf
>  thumbnailer seems to have the same behaviour.
>
>  So I'm confused - is this expected behaviour, a bug in my thumbnailer,
>  or a bug in nautilus?
>
>  Any help would be greatly appreciated!
>  Cheers,
>  Nyall
>

This is expected behavior, in accordance to the FD.O Thumbnail spec
[1]. So it's likely a bug in your thumbnailer in this case. Then again
the thumbnailing spec could probably use some clarification (as it
apparently does permit applications to create smaller thumbnails,
which are ugly when scaled up).

-A.Walton

[1] :http://people.freedesktop.org/~vuntz/thumbnail-spec-cache/
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