using Gtk;
using Cairo;
using System;
 
class SharpApp : Window
{ public SharpApp() : base("Еліпси")
  { SetDefaultSize(250, 250);
    SetPosition(WindowPosition.Center);
    DeleteEvent += delegate { Application.Quit(); };
    DrawingArea darea = new DrawingArea();
    darea.ExposeEvent += OnExpose;
    Add(darea);
    ShowAll();
  }

  void OnExpose(object sender, ExposeEventArgs args)
  { DrawingArea area = (DrawingArea) sender;
    Cairo.Context cr =  Gdk.CairoHelper.Create(area.GdkWindow);
    cr.LineWidth = 1.0;
    int w = Allocation.Width,
        h = Allocation.Height;
    cr.Translate(w/2, h/2);
    cr.Arc(0, 0, 120, 0, 2*Math.PI);
    cr.Stroke();
    cr.Save();
    for (int i = 0; i < 36; i++)
    { cr.Rotate( i*Math.PI/36);
      cr.Scale(0.3, 1);
      cr.Arc(0, 0, 120, 0, 2*Math.PI);
      cr.Restore();
      cr.Stroke();
      cr.Save();
    }
    ((IDisposable) cr.GetTarget()).Dispose();                                      
    ((IDisposable) cr).Dispose();
  }

  public static void Main()
  { Application.Init();
    new SharpApp();
    Application.Run();
  }
}