[longomatch] Fix exception and make the extended Open private

[Andoni Morales Alastruey <amorales src gnome org>]

commit fb5b1ed4b2520922b65857f346a0c6e0ee6d8e3f
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Tue Jun 3 19:10:32 2014 +0200

    Fix exception and make the extended Open private

 LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs b/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
index b47b117..bb30733 100644
--- a/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
+++ b/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
@@ -270,7 +270,8 @@ namespace LongoMatch.Gui
                        segment.Stop = new Time (int.MaxValue);
                        SetScaleValue (SCALE_FPS);
                        //timescale.Sensitive = true;
-                       SegmentClosedEvent();
+                       if (SegmentClosedEvent != null)
+                               SegmentClosedEvent();
                }
 
                public void SetSensitive() {
@@ -287,7 +288,7 @@ namespace LongoMatch.Gui
 
                #region Private methods
 
-               public void Open(string filename, bool seek) {
+               void Open(string filename, bool seek) {
                        ResetGui();
                        CloseSegment();
                        if (filename != this.filename) {