-#define GIS_TYPE_VIEWER (gis_viewer_get_type())
-#define GIS_VIEWER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GIS_TYPE_VIEWER, GisViewer))
-#define GIS_IS_VIEWER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GIS_TYPE_VIEWER))
-#define GIS_VIEWER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIS_TYPE_VIEWER, GisViewerClass))
-#define GIS_IS_VIEWER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIS_TYPE_VIEWER))
-#define GIS_VIEWER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIS_TYPE_VIEWER, GisViewerClass))
+#define GRITS_TYPE_VIEWER (grits_viewer_get_type())
+#define GRITS_VIEWER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GRITS_TYPE_VIEWER, GritsViewer))
+#define GRITS_IS_VIEWER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GRITS_TYPE_VIEWER))
+#define GRITS_VIEWER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GRITS_TYPE_VIEWER, GritsViewerClass))
+#define GRITS_IS_VIEWER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GRITS_TYPE_VIEWER))
+#define GRITS_VIEWER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GRITS_TYPE_VIEWER, GritsViewerClass))