using System;

public interface IComponent

{

    void Render();

    IComponent Clone();

}

​

public class Circle : IComponent

{

    public int Radius { get; set; }

​

    public IComponent Clone()

    {

        Circle newCircle = new Circle();

        newCircle.Radius = Radius;

        return newCircle;

    }

​

    public void Render()

    {

        Console.WriteLine("Rendering a Circle");

    }

}

​

public class ContextMenu

{

    public void Duplicate(IComponent component)

    {

        IComponent newComponent = component.Clone();

        Console.Write("component duplicated/cloned");

        //Add target to document

    }

}

​

​

public class Program

{

    public static void Main()

    {

        Circle circle = new Circle() { Radius = 10 };

        ContextMenu cmenu = new ContextMenu();

        cmenu.Duplicate(circle);

    }

}