[f-spot] fix the build

[Stephane Delcroix <sdelcroix src gnome org>]

commit b1fb36e115babffe6c9c84886949546824cbdc81
Author: Stephane Delcroix <stephane delcroix org>
Date:   Tue Jun 16 16:54:11 2009 +0200

    fix the build

 src/Widgets/ImageView.cs |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/Widgets/ImageView.cs b/src/Widgets/ImageView.cs
index 494095c..49a771f 100644
--- a/src/Widgets/ImageView.cs
+++ b/src/Widgets/ImageView.cs
@@ -769,9 +769,9 @@ namespace FSpot.Widgets
 			}
 		}
 
-		void ScrollBy (int x, int y)
+		void ScrollBy (double x, double y)
 		{
-			ScrollTo (XOffset + x, YOffset + y, true);
+			ScrollTo ((int)(XOffset + x), (int)(YOffset + y), true);
 		}
 
 		static int Clamp (int value, int min, int max)