[Shotwell] Regenerate thumbnails?

[Jim Nelson]

> A note for the developers: wouldn't it be great to have a modular
> system for Shotwell where one can decide to use one application for
> tagging, another one for editing, another one for playing videos and
> so on? Shotwell could call the configured preferred application to do
> the specific operation and after that go back to the normal Shotwell
> interface.
>
>
In fact, Shotwell does work like that in some cases.  For example, Shotwell
launches a video player when you double-click on a video and it does allow
you to edit your photos using an external editor (look in the Photos
drop-down menu).

However, because Shotwell is a non-destructive editor, its own editing
transformations are stored in an internal database rather than committing
those changes to the photo file directly.  Similarly, when you tag a photo
it's stored in the database rather than writing that tag out to the file.
You can configure Shotwell to make those changes in some case, but in
general Shotwell is faster because of this design.  (Plus, you don't risk
editing your original files and losing things you want to keep.)

-- Jim