/// <summary>
/// Draw a circle, by capturing 2 clicks to define the diameter.
/// </summary>
/// <param name="e"></param>
private void CreateCircle(MouseEventArgs e)
{
if (clicknumber == 0)
{
one = new PointF(e.X, e.Y);
clicknumber = 1;
}
else
{
two = new PointF(e.X, e.Y);
clicknumber = 0;
Graphics g = this.CreateGraphics();
Pen blackpen = new Pen(Color.Black);
Circle aShape = new Circle(one, two);
activeShapes.Add(aShape);
aShape.Draw(g);
}
RefreshDrawings();
}
static void Main(string[] args)
{
//Shape shape = new Shape();
Shape circle = new Circle();
circle.Draw();
List <Shape> shapes = new List <Shape>();
// use polymorphis to store objects
shapes.Add(new Circle());
shapes.Add(new Square());
shapes.Add(new Circle());
shapes.Add(new Square());
Console.WriteLine("Loop through all drawing objects in a list:");
foreach (Shape shape in shapes)
{
shape.Draw(); // "Draw Circle!" "Draw Square!" ...
}
}