[mistelix/stable] Desconnect timer when widget is destroyed

[Jordi Mas <jmas src gnome org>]

commit 3877448f7ad5c5991f3347943753b1bbc48e1646
Author: Jordi Mas <jmas softcatala org>
Date:   Thu Jul 9 17:40:49 2009 +0100

    Desconnect timer when widget is destroyed

 src/dialogs/AddSlideDialog.cs |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/dialogs/AddSlideDialog.cs b/src/dialogs/AddSlideDialog.cs
index 50d51f1..812b9cc 100644
--- a/src/dialogs/AddSlideDialog.cs
+++ b/src/dialogs/AddSlideDialog.cs
@@ -584,5 +584,11 @@ namespace Mistelix.Dialogs
 			((IDisposable)cc).Dispose();
    			return base.OnExposeEvent(args);
 		}
+
+		protected override void OnUnrealized ()
+		{
+			timer.Enabled = false;
+			timer.Elapsed -= TimerUpdater;
+		}
 	}
 }