Photo Import

Add photos to your collection from a different device or storage medium.

Goals

Help to manage the device/media that you are importing from?
- Free up space by removing photos that have been imported?
- Indicate remaining space?
- Allow emptying the trash?
Prevent against errors: if deleting content is allowed, warn if it hasn't been imported.
Make the most common cases Just Work:
- Detect and automatically select new photos.
- By default remove photos that have been imported.
But also allow less common cases:
- Allow leaving photos on the device/media or removing them.
- Allow selecting only some photos to import.
Assist with organizing photos? Allow adding them to an album? Suggest albums to create?

Use cases:

Most common case: import source is controlled by the user, only contains photos that will be imported.
Importing from a physical archive medium (external hard drive, SD cards, etc).
Physically sharing photos - passing round a USB stick, for example.
Import from existing App silos -- Shotwell in particular, as it's been the default in many Linux distributions.

Apart from photo data itself, it's desirable to import Shotwells metadata such as

Tags -- used for search
Edits (supposed non-desctuctive, perhaps possible to map those edits into gegl ops?)
There are only time based *events* in Shotwell, no concept of *albums*