#

	#  @param r row coordinate, [0-18], counted from top

	#  @param c column coordinate, [0-18], counted from left

	#  @param color color indicator, go.BLACK or go.WHITE

	def _drawStone(self, r, c, color, label=""):

		if color==BLACK:

			hexCode='#000000'

			altCode='#ffffff'

			tag="black"

		elif color==WHITE:

			hexCode='#ffffff'

			altCode='#000000'

			tag="white"

		else: return False

		x=c*self._cellWidth+self._padding

		y=r*self._cellHeight+self._padding

		radius=self._cellWidth/2

		self.create_oval(x-radius,y-radius,x+radius,y+radius,tags=tag,fill=hexCode)

		if label:

			self.create_text(x,y,text=label,tags="label",fill=altCode)

	def _onResize(self,event):

		super()._onResize(event)

		self._cellWidth=(self._width-2*self._padding)/18

		self._cellHeight=(self._height-2*self._padding)/18