private bool AreRegionsAdjacent(NavigationRegion a, NavigationRegion b)
{
return(a == b ||
a.Above(b) ||
a.Below(b) ||
a.LeftOf(b) ||
a.RightOf(b));
}
// Return true if this region is left of compareTo.
// If this is left of compareTo, then compareTo is right
// of this, hence we call compareTo's RightOf function.
public bool LeftOf(NavigationRegion compareTo)
{
return(compareTo.RightOf(this));
}