[gtk+] themingbackground: Add content_box variable

[Benjamin Otte <otte src gnome org>]

commit 12dec5279e4324cf089ca8c326bf9a39e19c178f
Author: Benjamin Otte <otte redhat com>
Date:   Sat Oct 27 02:07:43 2012 +0200

    themingbackground: Add content_box variable
    
    ... to go with border_box and padding_box.

 gtk/gtkthemingbackground.c        |    5 +++++
 gtk/gtkthemingbackgroundprivate.h |    1 +
 2 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkthemingbackground.c b/gtk/gtkthemingbackground.c
index 55df2dc..b80cc5b 100644
--- a/gtk/gtkthemingbackground.c
+++ b/gtk/gtkthemingbackground.c
@@ -357,6 +357,11 @@ _gtk_theming_background_init_context (GtkThemingBackground *bg)
   _gtk_rounded_box_shrink (&bg->padding_box,
 			   bg->border.top, bg->border.right,
 			   bg->border.bottom, bg->border.left);
+
+  bg->content_box = bg->padding_box;
+  _gtk_rounded_box_shrink (&bg->content_box,
+			   bg->padding.top, bg->padding.right,
+			   bg->padding.bottom, bg->padding.left);
 }
 
 void
diff --git a/gtk/gtkthemingbackgroundprivate.h b/gtk/gtkthemingbackgroundprivate.h
index e6ed1df..04ecd6a 100644
--- a/gtk/gtkthemingbackgroundprivate.h
+++ b/gtk/gtkthemingbackgroundprivate.h
@@ -37,6 +37,7 @@ struct _GtkThemingBackground {
   cairo_rectangle_t paint_area;
   GtkRoundedBox border_box;
   GtkRoundedBox padding_box;
+  GtkRoundedBox content_box;
 
   GtkJunctionSides junction;
   GtkBorder border;