[gnome-photos] operation-insta-hefe-vignette: Use the correct typecast

[Debarshi Ray <debarshir src gnome org>]

commit 67f9b9a18d7cc7a9c512079bf544549138fdeea3
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Nov 23 11:45:22 2017 +0100

    operation-insta-hefe-vignette: Use the correct typecast
    
    The height and width need to be cast to guint, because, unlike
    GeglRectangle, gegl_rectangle_set uses unsigned integers for those
    parameters.
    
    Fallout from a2ae6b14f5dedcc7202d3e957e8b0a236d475c9d

 src/photos-operation-insta-hefe-vignette.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/photos-operation-insta-hefe-vignette.c b/src/photos-operation-insta-hefe-vignette.c
index 63baf8b..33f455b 100644
--- a/src/photos-operation-insta-hefe-vignette.c
+++ b/src/photos-operation-insta-hefe-vignette.c
@@ -93,7 +93,7 @@ photos_operation_insta_hefe_vignette_get_bounding_box (GeglOperation *operation)
   PhotosOperationInstaHefeVignette *self = PHOTOS_OPERATION_INSTA_HEFE_VIGNETTE (operation);
   GeglRectangle bbox;
 
-  gegl_rectangle_set (&bbox, (gint) self->x, (gint) self->y, (gint) self->width, (gint) self->height);
+  gegl_rectangle_set (&bbox, (gint) self->x, (gint) self->y, (guint) self->width, (guint) self->height);
   return bbox;
 }