[gtk+] Make DnD code use GtkStyleContext for the highlight rectangle.

[Carlos Garnacho <carlosg src gnome org>]

commit 96d8f85dcc2781575836740386512d448337b44a
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Jan 4 02:32:04 2011 +0100

    Make DnD code use GtkStyleContext for the highlight rectangle.

 gtk/gtkdnd-quartz.c   |   11 +++++++----
 gtk/gtkdnd.c          |   13 +++++++++----
 gtk/gtkstylecontext.h |    7 +++++++
 3 files changed, 23 insertions(+), 8 deletions(-)
---
diff --git a/gtk/gtkdnd-quartz.c b/gtk/gtkdnd-quartz.c
index d990029..f541cf1 100644
--- a/gtk/gtkdnd-quartz.c
+++ b/gtk/gtkdnd-quartz.c
@@ -347,11 +347,14 @@ gtk_drag_highlight_draw (GtkWidget *widget,
 {
   int width = gtk_widget_get_allocated_width (widget);
   int height = gtk_widget_get_allocated_height (widget);
+  GtkStyleContext *context;
 
-  gtk_paint_shadow (gtk_widget_get_style (widget), cr,
-                    GTK_STATE_NORMAL, GTK_SHADOW_OUT,
-                    widget, "dnd",
-                    0, 0, width, height);
+  gtk_style_context_save (context);
+  gtk_style_context_add_class (context, GTK_STYLE_CLASS_DND);
+
+  gtk_render_frame (context, cr, 0, 0, width, height);
+
+  gtk_style_context_restore (context);
 
   cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
   cairo_set_line_width (cr, 1.0);
diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
index bb90456..933172b 100644
--- a/gtk/gtkdnd.c
+++ b/gtk/gtkdnd.c
@@ -1104,11 +1104,16 @@ gtk_drag_highlight_draw (GtkWidget *widget,
 {
   int width = gtk_widget_get_allocated_width (widget);
   int height = gtk_widget_get_allocated_height (widget);
+  GtkStyleContext *context;
 
-  gtk_paint_shadow (gtk_widget_get_style (widget), cr,
-                    GTK_STATE_NORMAL, GTK_SHADOW_OUT,
-                    widget, "dnd",
-                    0, 0, width, height);
+  context = gtk_widget_get_style_context (widget);
+
+  gtk_style_context_save (context);
+  gtk_style_context_add_class (context, GTK_STYLE_CLASS_DND);
+
+  gtk_render_frame (context, cr, 0, 0, width, height);
+
+  gtk_style_context_restore (context);
 
   cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */
   cairo_set_line_width (cr, 1.0);
diff --git a/gtk/gtkstylecontext.h b/gtk/gtkstylecontext.h
index 97f7e76..ab9be70 100644
--- a/gtk/gtkstylecontext.h
+++ b/gtk/gtkstylecontext.h
@@ -354,6 +354,13 @@ struct _GtkStyleContextClass
 #define GTK_STYLE_CLASS_FRAME "frame"
 
 /**
+ * GTK_STYLE_CLASS_DND:
+ *
+ * A CSS class for a drag-and-drop indicator
+ */
+#define GTK_STYLE_CLASS_DND "dnd"
+
+/**
  * GTK_STYLE_CLASS_INFO:
  *
  * A widget class for an area displaying an informational message,