[Thunar-dev] PDF Thumbnailer
benedikt.meurer at unix-ag.uni-siegen.de
Sun Aug 5 13:19:09 CEST 2007
Erlend Davidson wrote:
> I want to include a simple PDF thumbnailer for thunar, which uses
> ImageMagick. I know there is already one, but it depends on evince
> being installed which would require a number of gnome libraries - not
> everyone wants to do this, especially not for a simple thumbnail.
> The trouble is if I include a thumbnailer which supports a format
> already supported by an existing thumbnailer - what happens? I presume
> mine (being added to the system later) would override thunar's default,
> which probably isn't the intended option. If you have evince installed
> then I would say it is the best (fastest) means of thumbnailing a PDF.
> This this in mind I want to propose to Benedict that the .desktop files
> for each thumbnailer have another field:
> which is a number: 1 being a low priority and anything above that
> increasingly higher priority. The default priority for any thumbnailer
> in thunar should be 10, that way when I want to include (for example)
> the PDF thumbnailer I can set the priority to be 5... when
> /usr/libexec/thunar-vfs-update-thumbnailers-cache-1 is run by the user
> the highest priority thumbnailers which have their TryExec found will be
> added to the thumbnailer cache.
> For example if evince is not installed and
> /usr/libexec/thunar-vfs-update-thumbnailers-cache-1 is run it,
> 1. looks at both thunar-thumbnailers' and thunar's (evince) .desktop files
> 2. sees that evince has a higher priority (because it is faster it
> should be given the higher priority)
> 3. sees that evince-thumbnailer is not on tha $PATH, so uses the
> thumbnailer with the next highest priority.
> This seems like the simplest solution to me, as it only requires the
> thunar-vfs-update-thumbnailers-cache-1 command to be updated.
> This also fixes a problem caused by ffmpeg-thumbnailer, which can
> override totem-thumbnailer.
The GNOME thumbnailers are used by default. Any thumbnailer installed
via a .desktop file overrides a conflicting GNOME thumbnailer.
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