private void buttonArea_Click(object sender, EventArgs e)
{
int dpi = (int)canvas.DpiX;
double circleArea = AreaCalculator.circlesArea(_shapes, dpi);
double squareArea = AreaCalculator.squaresArea(_shapes, dpi);
double rectangleArea = AreaCalculator.rectanglesArea(_shapes, dpi);
labelCircleAreaCalculated.Text = circleArea.ToString() + " cm2";
labelSquareAreaCalculated.Text = squareArea.ToString() + " cm2";
labelRectangleAreaCalculated.Text = rectangleArea.ToString() + " cm2";
}
public SumCalculatorOutputter(AreaCalculator calculator)
{
calculator = _calculator;
}