CURA-4188
Custom FDM printers in 2.5 don't have multi-extrusion support but they
do since 2.6. Upgrading from 2.5 to 2.6 will not create the missing
extruder stacks for the old custom FDM printers, which causes a crash.
This fix makes sure that all custom FDM printers will have 8 extruder
stacks during the upgrade so that Cura can still start normally and
those printers will still be usable.
CURA-4113
The Don't show again checkbox is on the same row with the buttons. In
some translations, the text for the checkbox is very long, which
overlaps with the button.
CURA-4107
Now we always create a definition changes container for a stack,
checking if the definition changes is empty in SliceInfo doesn't work.
It should check the content too.
This was discussed with the materials team. A layer height of 0.4mm for a 0.4mm nozzle could give problems. This would be even worse with a 0.25mm nozzle.
It says so in the context of the build dimensions translation. Not yet in the context of the HTML tags with <filename> and such, but it will do that for the next translation round properly.
Contributes to issue CURA-4113.
CURA-4107
In old Cura, there is no definitionChanges container, so loading a
project file from an old version will result in stacks with empty
defnitionChanges. This will cause an unnecessary auto-slice problem when
we switch between the extruder tabs for the first time. This action will
trigger a piece code in MachineAction which creates a definitionChanges
container for the active stack if it is empty. This eventually triggers
a propertyChanged signal and results in an unncessary auto-slicing.
CURA-4167
Custom FDM printers have multiple extruder stacks by default but not all
of them may be used. The actual number of extruders depends on what's
defined in the global stack. Because in the current architecture,
single-extrusion machines don't have extruder stacks, in project
loading, the extruder count in the global stack should be used so these
cases can be handled properly.
Literally it should've been 'weergavenaam', but I'm now opting for a less literal translation because weergavenaam sounds so weird.
Contributes to issue CURA-4113.
