Double-click is already handled by PartDesign::ViewProvider::doubleClicked()
Overridings in Loft & Pipe brings no specific behavior
By removing overridings, behavioral consistency is improved both in ...
... undo commands & body activation management when PartDesign items ...
... are double-clicked
===============================================
Before this implementation, specific status via former mergeOverlayIcon() was greyed out
with the visibility.
With this commit, the developer has two options:
a) override mergeGreyableOverlayIcons, in which case the overlay will
be greyed out when the item is greyed out as per former mergeOverlayIcon()
b) override mergeColorfulOverlayIcons, in which case the overlay will
be superimposed after the icon is greyed out as it is the case for stardard
error and recompute flags.
-Rename Sketchbased to ProfileBased to show new behavior
-Adopt ProfileBased to make the relevant helper functions work with faces too
-Adopt features for unified use of helper functions
-Adopt commands to allow face selection
