void undo_add_arrowhead(void)
{
switch (last_object) {
case O_POLYLINE:
delete_linearrow(saved_objects.lines,
last_prev_point, last_selected_point);
break;
case O_SPLINE:
delete_splinearrow(saved_objects.splines,
last_prev_point, last_selected_point);
break;
case O_ARC:
delete_arcarrow(saved_objects.arcs, last_arcpointnum);
break;
default:
return;
}
last_action = F_DELETE_ARROW_HEAD;
}
static void
delete_arrow_head(F_line *obj, int type, int x, int y, F_point *p, F_point *q)
{
switch (type) {
case O_POLYLINE:
cur_l = (F_line *) obj;
delete_linearrow(cur_l, p, q);
break;
case O_SPLINE:
cur_s = (F_spline *) obj;
delete_splinearrow(cur_s, p, q);
break;
case O_ARC:
cur_a = (F_arc *) obj;
/* dirty trick - arc point number is stored in p */
delete_arcarrow(cur_a, (int) p);
break;
}
}