[libgnomecanvas] Forward scroll events to items holding a grap. Patch from Paul Davis. Closes bug #594560

[Kjartan Maraas <kmaraas src gnome org>]

commit ef68b0430aab17e7f2f9d455e2c345ba3230985e
Author: Kjartan Maraas <kmaraas gnome org>
Date:   Thu Oct 1 10:56:33 2009 +0200

    Forward scroll events to items holding a grap. Patch from Paul Davis. Closes bug #594560

 libgnomecanvas/gnome-canvas.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/libgnomecanvas/gnome-canvas.c b/libgnomecanvas/gnome-canvas.c
index e6eae08..f837fce 100644
--- a/libgnomecanvas/gnome-canvas.c
+++ b/libgnomecanvas/gnome-canvas.c
@@ -2517,6 +2517,10 @@ emit_event (GnomeCanvas *canvas, GdkEvent *event)
 			mask = GDK_KEY_RELEASE_MASK;
 			break;
 
+		case GDK_SCROLL:
+			mask = GDK_SCROLL_MASK;
+			break;
+
 		default:
 			mask = 0;
 			break;