[gtk+] notebook: render a frame and background in the header

[Matthias Clasen <matthiasc src gnome org>]

commit 71ad9a8fdd8aaa9019e05de58b38253da02b1b2e
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Sat Mar 5 03:03:45 2011 -0500

    notebook: render a frame and background in the header
    
    And use the "header" style class to do that.
    This allows themes to set e.g. the background of the tab header
    differently.
    
    Themes will need slight adjustment to make things appear
    as before.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=643914

 gtk/gtknotebook.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtknotebook.c b/gtk/gtknotebook.c
index 27880c4..f008101 100644
--- a/gtk/gtknotebook.c
+++ b/gtk/gtknotebook.c
@@ -5163,6 +5163,14 @@ gtk_notebook_paint (GtkWidget    *widget,
   else
     page = priv->cur_page;
 
+  gtk_style_context_save (context);
+  gtk_style_context_add_class (context, GTK_STYLE_CLASS_HEADER);
+  gtk_render_background (context, cr,
+                         x, y, width, page->allocation.height);
+  gtk_render_frame (context, cr,
+                    x, y, width, page->allocation.height);
+  gtk_style_context_restore (context);
+
   switch (tab_pos)
     {
     case GTK_POS_TOP: