public virtual void DismissDialog ()
{
if (dialog == null)
return;
dialog.RemoveFromPainter ();
dialog = null;
}
public virtual void ShowDialog (UIDialog dialog)
{
Console.WriteLine ("showing {0}", dialog);
if (this.dialog != null)
throw new Exception ("only one active dialog is allowed");
this.dialog = dialog;
dialog.Load ();
dialog.Ready += delegate () { dialog.AddToPainter (); };
}