[gtk+/gtk-style-context: 34/540] GtkStyleContext: Add gtk_render_arrow().

[Carlos Garnacho <carlosg src gnome org>]

commit 076423d3c81d28924d089eb67345b48300a7d125
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sat Mar 27 19:57:54 2010 +0100

    GtkStyleContext: Add gtk_render_arrow().

 gtk/gtkstylecontext.c |   22 ++++++++++++++++++++++
 gtk/gtkstylecontext.h |    6 ++++++
 2 files changed, 28 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index 50d3bb2..43fb27a 100644
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -629,5 +629,27 @@ gtk_render_option (GtkStyleContext *context,
                                x, y, width, height);
 }
 
+void
+gtk_render_arrow (GtkStyleContext *context,
+                  cairo_t         *cr,
+                  gdouble          angle,
+                  gdouble          x,
+                  gdouble          y,
+                  gdouble          size)
+{
+  GtkStyleContextPrivate *priv;
+  GtkThemingEngineClass *engine_class;
+
+  g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
+  g_return_if_fail (cr != NULL);
+
+  priv = GTK_STYLE_CONTEXT_GET_PRIVATE (context);
+  engine_class = GTK_THEMING_ENGINE_GET_CLASS (priv->theming_engine);
+
+  _gtk_theming_engine_set_context (priv->theming_engine, context);
+  engine_class->render_arrow (priv->theming_engine, cr,
+                              angle, x, y, size);
+}
+
 #define __GTK_STYLE_CONTEXT_C__
 #include "gtkaliasdef.c"
diff --git a/gtk/gtkstylecontext.h b/gtk/gtkstylecontext.h
index 8a14b1e..806d25f 100644
--- a/gtk/gtkstylecontext.h
+++ b/gtk/gtkstylecontext.h
@@ -115,6 +115,12 @@ void gtk_render_option (GtkStyleContext *context,
                         gdouble          y,
                         gdouble          width,
                         gdouble          height);
+void gtk_render_arrow  (GtkStyleContext *context,
+                        cairo_t         *cr,
+                        gdouble          angle,
+                        gdouble          x,
+                        gdouble          y,
+                        gdouble          size);
 
 G_END_DECLS