def do_size_allocate(self, allocation):
self.set_allocation(allocation)
sizes, childrenToAllocate, totalMinWidth = self._update_children_visibility(allocation)
extraSpace = allocation.width - totalMinWidth
Gtk.distribute_natural_allocation(extraSpace, len(childrenToAllocate), sizes)
x = allocation.x
for i in range(len(childrenToAllocate)):
childAllocation = []
childAllocation.x = x
childAllocation.y = allocation.y
childAllocation.width = sizes[i].minimum_size
childAllocation.height = allocation.height
childrenToAllocate[i].size_allocate(childAllocation)
x += childAllocation.width
