[gtk] box: Simplify size_allocate

[Timm Bäder <baedert src gnome org>]

commit 1cfbe9c3d06bbd07d1a148576aec7059413f22eb
Author: Timm Bäder <mail baedert org>
Date:   Tue Feb 6 23:58:06 2018 +0100

    box: Simplify size_allocate
    
    Stop looking at the box allocation position since both x and y are 0.

 gtk/gtkbox.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/gtk/gtkbox.c b/gtk/gtkbox.c
index 927093e458..6d2fd58631 100644
--- a/gtk/gtkbox.c
+++ b/gtk/gtkbox.c
@@ -586,21 +586,21 @@ gtk_box_size_allocate (GtkWidget           *widget,
     {
       if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
        {
-         child_allocation.y = allocation->y;
+         child_allocation.y = 0;
          child_allocation.height = allocation->height;
          if (packing == GTK_PACK_START)
-           x = allocation->x;
+           x = 0;
          else
-           x = allocation->x + allocation->width;
+           x = allocation->width;
        }
       else
        {
-         child_allocation.x = allocation->x;
+         child_allocation.x = 0;
          child_allocation.width = allocation->width;
          if (packing == GTK_PACK_START)
-           y = allocation->y;
+           y = 0;
          else
-           y = allocation->y + allocation->height;
+           y = allocation->height;
        }
 
       for (i = 0, children = private->children;
@@ -642,7 +642,7 @@ gtk_box_size_allocate (GtkWidget           *widget,
                }
 
              if (direction == GTK_TEXT_DIR_RTL)
-               child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) 
- child_allocation.width;
+               child_allocation.x = allocation->width - (child_allocation.x - allocation->x) - 
child_allocation.width;
 
            }
          else /* (private->orientation == GTK_ORIENTATION_VERTICAL) */