State with signals?

[vigji]

I was wondering whether having the State refactored as a QtObject would make sense, in that it would add it the possibility of emitting signals to synch the GUI. This would make easier to glue together different widgets that see each other only through the state. All the widgetish things will still be out of it, so this would preserve the distinction between the state and the user interface, but might streamline some parts of the code.

[vilim]

Sounds reasonable. Perhapse the evented dataclasses from napari could be considered?

[vigji]

I will investigate!

[diegoasua]

We might want to prioritise this. It will help a lot in subsequent developement!