extra_space to child
sizes by bringing smaller children up to natural size first.
The remaining space will be added to the
minimum_size member of the `GtkRequestedSize` struct. If all sizes reach their natural
size then the remaining space is returned.
Extra space to redistribute among children after subtracting minimum sizes and any child padding from the overall allocation
An array of structs with a client pointer and a minimum/natural size in the orientation of the allocation.
Number of requests to fit into the allocation
The remainder of