2 staff-symbol-engraver.cc -- implement Staff_symbol_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "paper-column.hh"
12 #include "paper-def.hh"
13 #include "side-position-interface.hh"
14 #include "engraver.hh"
18 Manage the staff symbol.
20 class Staff_symbol_engraver : public Engraver {
23 VIRTUAL_COPY_CONS(Translator);
24 Staff_symbol_engraver();
27 virtual ~Staff_symbol_engraver();
28 virtual void acknowledge_grob (Grob_info);
29 virtual void do_removal_processing();
30 virtual void do_creation_processing();
34 Staff_symbol_engraver::~Staff_symbol_engraver()
39 Staff_symbol_engraver::Staff_symbol_engraver()
45 Staff_symbol_engraver::do_creation_processing()
47 span_p_ = new Spanner (get_property ("StaffSymbol"));
49 span_p_->set_bound(LEFT, unsmob_element (get_property ("currentCommandColumn")));
51 announce_grob (span_p_, 0);
55 Staff_symbol_engraver::do_removal_processing()
57 span_p_->set_bound(RIGHT,unsmob_element (get_property ("currentCommandColumn")));
58 typeset_grob (span_p_);
63 Staff_symbol_engraver::acknowledge_grob (Grob_info s)
65 s.elem_l_->set_grob_property ("staff-symbol", span_p_->self_scm ());
67 // remove this. probly not necessary?
68 s.elem_l_->add_dependency (span_p_); // UGH. UGH. UGH
72 ADD_THIS_TRANSLATOR(Staff_symbol_engraver);