Mapwidget: Copy unit2ztile() to gtk_map_unit2ztile()

diff --git a/libs/libgtkmap/gtkmap.h b/libs/libgtkmap/gtkmap.h
index 0b85ab141599e767965bc9d5b7bc6e711004180b..5ac2f39c1e6498a3bc40a07a50d79c5560a46f72 100644 (file)
--- a/libs/libgtkmap/gtkmap.h
+++ b/libs/libgtkmap/gtkmap.h
@@ -114,6 +114,9 @@ G_BEGIN_DECLS
 void latlon2unit(gdouble lat, gdouble lon, guint *unitx, guint *unity);
 void unit2latlon(guint unitx, guint unity, gdouble *lat, gdouble *lon);
 
+#define gtk_map_tile2zunit(tile, zoom) ((tile) << (8 + zoom))
+#define gtk_map_unit2ztile(unit, zoom) ((unit) >> (8 + zoom))
+
 GType gtk_map_get_type(void);
 GtkWidget* gtk_map_new(void);