[f-spot/FSPOT_0_6_0_STABLE] avoid a crash on --view mode with a single image

[Stephane Delcroix <sdelcroix src gnome org>]

commit fc263b1c8e16745b46e8cd5408a60514a5ee5d5a
Author: Stephane Delcroix <stephane delcroix org>
Date:   Fri Aug 21 17:02:01 2009 +0200

    avoid a crash on --view mode with a single image

 src/Widgets/SlideShow.cs |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/Widgets/SlideShow.cs b/src/Widgets/SlideShow.cs
index 6559e13..c458a05 100644
--- a/src/Widgets/SlideShow.cs
+++ b/src/Widgets/SlideShow.cs
@@ -95,6 +95,9 @@ namespace FSpot.Widgets
 					next = null;
 				}
 	
+				if (item == null || item.Current == null)
+					return;
+
 				using (ImageFile img = ImageFile.Create (item.Current.DefaultVersionUri)) {
 					try {
 						using (var pb =  img.Load ()) {