--- a/src/FingersDance.Views/TimelineAnnotationView.xaml.cs	Fri Sep 25 18:28:58 2009 +0200
+++ b/src/FingersDance.Views/TimelineAnnotationView.xaml.cs	Tue Sep 29 11:08:37 2009 +0200
@@ -23,6 +23,11 @@
         {
             InitializeComponent();
         }
+
+        private void UserControl_Loaded(object sender, RoutedEventArgs e)
+        {
+
+        }
     }
 
     public class ThicknessSingleValueConverter : IValueConverter
@@ -41,4 +46,17 @@
             return thickness.Left;
         }
     }
+
+    public class VisibilityConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            Visibility v = ((float)value>0) ? Visibility.Visible : Visibility.Hidden;
+            return v;
+        }
+        public object ConvertBack(object value, Type targetTypes, object parameter, System.Globalization.CultureInfo culture)
+        {
+            return 1.0;
+        }
+    }
 }