diff -r fcf6d5fac8f5 -r b9808f916687 ui/ui/toolkit.h
--- a/ui/ui/toolkit.h	Sun Jan 24 11:59:58 2016 +0100
+++ b/ui/ui/toolkit.h	Sun Jan 24 12:08:57 2016 +0100
@@ -261,9 +261,12 @@
 void ui_tab(UiObject *obj, char *title);
 void ui_select_tab(UIWIDGET tabview, int tab);
 
+// box container layout functions
 void ui_layout_fill(UiObject *obj, UiBool fill);
+// grid container layout functions
 void ui_layout_hexpand(UiObject *obj, UiBool expand);
 void ui_layout_vexpand(UiObject *obj, UiBool expand);
+void ui_layout_gridwidth(UiObject *obj, int width);
 void ui_newline(UiObject *obj);