+ box[X_AXIS].widen (th / 2);
+ box[Y_AXIS].widen (th / 2);
+
+ return Stencil (box, at);
+}
+
+Stencil
+Line_interface::arrows (Grob *me, Offset from, Offset to,
+ bool from_arrow,
+ bool to_arrow)
+{
+ Stencil a;
+ if (from_arrow || to_arrow)
+ {
+ Real thick = Staff_symbol_referencer::line_thickness (me)
+ * robust_scm2double (me->get_property ("thickness"), 1);
+ Real ss = Staff_symbol_referencer::staff_space (me);
+
+ Real len = robust_scm2double (me->get_property ("arrow-length"), 1.3 * ss);
+ Real wid = robust_scm2double (me->get_property ("arrow-width"), 0.5 * ss);