Converted doxygen style comments to reStructuredText style in the files
found in Cura/cura/Model directory recursively using the script
dox_2_rst.py (provided in the Uranium repo). Comments were manually
checked and changed if needed.
Note: dox_2rst.py struggles with decorated functions.
See CURA-3M in sentry. It most commonly happens with the anycubic,
since it had some weird stuff with it suddenly supporting materials.
This change will make it so that no crash happens. Old profiles will still have
an empty material. This isn't really an issue, since the interface will mark this
as an error (prompting users to switch).
This should not happen, but we've seen some cases where it would cause a crash, usually
when a previous upgrade did something a bit weird (in this specific case; a printer
with an empty variant, whereas it should have a variant).
Since any change that the user will make will ensure that the variant is no longer empty (eg;
any selection of a variant will mean it's no longer empty) and that there is no way back,
it should be pretty safe to ignore the situation as it will resolve itself eventually
CURA-6992
Remove the notion of a singular 'active' extruder from the code.
Visibility of intent profiles should consider all enabled extruders.
This fix makes sure that it doesn't matter in what order materials are
loaded, the available intent profiles will be the same.
CURA-6840
The category is changed after constructing by the QML code in order to set its property.
This is now updating twice: Once for the default category and once for the final one set by QML. This is a bit inefficient. But make it work before optimising it!
Contributes to issue CURA-6597.
We don't want the profiles, because that'd be specific to one extruder. We want the quality types and intent categories as tuples again.
Contributes to issue CURA-6597.
