/// <summary>
/// selects a circle
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnCircle_Click(object sender, EventArgs e)
{
EnableBtns();
BtnCircle.Enabled = false;
DisableBox();
HeightText.Clear();
RadiusLabel.Enabled = true;
RadiusText.Enabled = true;
BtnCalc.Enabled = true;
_selectedShape = new Circle(new Point(0, 0));
}
/// <summary>
/// set all fields back to default
/// </summary>
private void DisableBox()
{
HeightLabel.Text = "Height";
WidthLable.Enabled = false;
WidthText.Enabled = false;
HeightLabel.Enabled = false;
HeightText.Enabled = false;
DepthLable.Enabled = false;
DepthText.Enabled = false;
HeightText.Clear();
WidthText.Clear();
DepthText.Clear();
RadiusText.Clear();
RadiusText.Enabled = false;
RadiusLabel.Enabled = false;
}
