[longomatch] Do not show drawing if the CurrentFrame is null

[Andoni Morales Alastruey <amorales src gnome org>]

commit e6b2e3eb0d2dda9ca1ecc288d606b43c6af3f0b4
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Fri Nov 21 14:33:37 2014 +0100

    Do not show drawing if the CurrentFrame is null

 LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs b/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
index 183cd2e..c96818e 100644
--- a/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
+++ b/LongoMatch.GUI.Multimedia/Gui/PlayerBin.cs
@@ -522,6 +522,9 @@ namespace LongoMatch.Gui
 
                void LoadImage (Image image, FrameDrawing drawing)
                {
+                       if (image == null) {
+                               return;
+                       }
                        blackboard.Background = image;
                        blackboard.Drawing = drawing;
                        DrawingsVisible = true;