Add GtkStylePropertyContext and use it in when getting style properties

At the toplevel we have _gtk_theming_engine_get, which lets us pass
in a property context with (atm) the size to get the property for.
Then there is a lot of plumbing to push this down into the lower
layers of the style property code until finally hitting
the property resolvers.

I need this because I will be adding a property resolver for win32
theme parts, and they render differently depending on the size
(i.e. they don't scale linearly). The idea is that the code
to get the background properties will pass in the final size
and we will resolve the theme part specification to that particular
size.

If the old non-context calls are used we just hardcode a size
of 100x100.

1 files changed, 7 insertions, 0 deletions

diff --git a/gtk/gtkthemingengineprivate.h b/gtk/gtkthemingengineprivate.h
index caf189ec6b..5191fa05b8 100644
--- a/gtk/gtkthemingengineprivate.h
+++ b/gtk/gtkthemingengineprivate.h
@@ -21,6 +21,13 @@
 #define __GTK_THEMING_ENGINE_PRIVATE_H__
 
 #include <gdk/gdk.h>
+#include "gtkstylecontextprivate.h"
+
+void _gtk_theming_engine_get          (GtkThemingEngine *engine,
+				       GtkStateFlags     state,
+				       GtkStylePropertyContext *property_context,
+                                      ...) G_GNUC_NULL_TERMINATED;
+
 
 void _gtk_theming_engine_paint_spinner (cairo_t *cr,
                                         gdouble  radius,