Get the quality changes group back from whichever one is actually active on the stack. This prevents the two from getting out of sync, which makes the code easier to maintain.
Contributes to issue CURA-6600.
The speed improvement didn't work.
It still doesn't seem to have a lot of effect. Maybe it's not the creating of the tree that causes this slowdown?
Contributes to issue CURA-6600.
We want to make sure that this tree is constructed during start-up after all containers have been registered, so we call getInstance() there once. If you need the tree before that, the tree will not yet have been filled and you won't get complete information, so you'd need to listen for updates.
The singleton is there so you don't need to go via CuraApplication.
Contributes to issue CURA-6600.
This sets up a few new classes, subclasses of ContainerNode.
This is intended to simplify the current structure in the QualityManager.
Contributes to issue CURA-6600.
