[gnome-photos/wip/rishi/edit-mode: 1/27] gegl-gtk-view-helper: Simplify the arithmetic

[Debarshi Ray <debarshir src gnome org>]

commit 7a9e95a5a240cae5208f6383d0f458564a25528a
Author: Debarshi Ray <debarshir gnome org>
Date:   Sun Jun 21 21:50:52 2015 +0200

    gegl-gtk-view-helper: Simplify the arithmetic

 src/gegl-gtk-view-helper.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/src/gegl-gtk-view-helper.c b/src/gegl-gtk-view-helper.c
index 0013007..4638f1f 100644
--- a/src/gegl-gtk-view-helper.c
+++ b/src/gegl-gtk-view-helper.c
@@ -135,8 +135,6 @@ update_autoscale(ViewHelper *self)
 
     } else if (self->autoscale_policy == GEGL_GTK_VIEW_AUTOSCALE_CONTENT) {
         /* Calculate and set scaling factor to make the content fit inside */
-        float delta_x;
-        float delta_y;
         float scale = 1.0;
         const gint real_viewport_height = viewport.height * self->scale_factor;
         const gint real_viewport_width = viewport.width * self->scale_factor;
@@ -155,10 +153,8 @@ update_autoscale(ViewHelper *self)
         self->scale = scale;
 
         /* At this point, viewport is definitely bigger than bbox. */
-        delta_x = (real_viewport_width - bbox.width) / 2.0;
-        delta_y = (real_viewport_height - bbox.height) / 2.0;
-        self->x = -delta_x;
-        self->y = -delta_y;
+        self->x = (bbox.width - real_viewport_width) / 2.0;
+        self->y = (bbox.height - real_viewport_height) / 2.0;
     }
 
 }