[gtk+] Make GtkHandleBox size request code use GtkStyleContext for padding

[Carlos Garnacho <carlosg src gnome org>]

commit 7b3de2d5529c7902318130a5a23247b841c0c4b1
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Jan 4 02:35:19 2011 +0100

    Make GtkHandleBox size request code use GtkStyleContext for padding

 gtk/gtkhandlebox.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkhandlebox.c b/gtk/gtkhandlebox.c
index bb52492..c96f665 100644
--- a/gtk/gtkhandlebox.c
+++ b/gtk/gtkhandlebox.c
@@ -611,11 +611,19 @@ gtk_handle_box_size_request (GtkWidget      *widget,
 	}
       else
 	{
+          GtkStyleContext *context;
+          GtkStateFlags state;
+          GtkBorder padding;
+
+          context = gtk_widget_get_style_context (widget);
+          state = gtk_widget_get_state_flags (widget);
+          gtk_style_context_get_padding (context, state, &padding);
+
 	  if (handle_position == GTK_POS_LEFT ||
 	      handle_position == GTK_POS_RIGHT)
-	    requisition->height += gtk_widget_get_style (widget)->ythickness;
+	    requisition->height += padding.top;
 	  else
-	    requisition->width += gtk_widget_get_style (widget)->xthickness;
+	    requisition->width += padding.left;
 	}
     }
   else