class RubyXL::Border

def get_edge_color(direction)
  edge = self.send(direction)
  edge && edge.get_rgb_color
end

def get_edge_style(direction)
  edge = self.send(direction)
  edge && edge.style
end

def set_edge_color(direction, color)
  edge = self.send(direction)
  if edge
    edge.set_rgb_color(color)
  else
    self.send("#{direction}=", RubyXL::BorderEdge.new)
    self.send(direction).set_rgb_color(color)
  end
end

def set_edge_style(direction, style)
  edge = self.send(direction)
  if edge
    edge.style = style
  else
    self.send("#{direction}=", RubyXL::BorderEdge.new(:style => style))
  end
end