private void AdjustCircle(object sender, SizeChangedEventArgs e)
{
TicTacToeField control = sender as TicTacToeField;
double width = e.NewSize.Width;
double height = e.NewSize.Height;
double squareSize = Math.Min(width, height);
control.Width = squareSize;
control.Height = squareSize;
control.Shapes.TryGetValue(TicTacToe.Sign.O, out Shape Circle);
Circle.Width = squareSize - 6 < 0 ? squareSize : squareSize - 6;
Circle.Height = Circle.Width;
Circle.StrokeThickness = 0.15 * squareSize;
}
private static void OnColumnChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TicTacToeField control = d as TicTacToeField;
control.OnColumnChanged(e);
}