2 staff-symbol-engraver.cc -- implement Staff_symbol_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "paper-column.hh"
12 #include "output-def.hh"
13 #include "side-position-interface.hh"
14 #include "engraver.hh"
18 Manage the staff symbol.
20 class Staff_symbol_engraver : public Engraver {
22 TRANSLATOR_DECLARATIONS (Staff_symbol_engraver);
27 virtual ~Staff_symbol_engraver ();
28 virtual void acknowledge_grob (Grob_info);
29 virtual void finalize ();
30 virtual void process_music ();
34 Staff_symbol_engraver::~Staff_symbol_engraver ()
39 Staff_symbol_engraver::Staff_symbol_engraver ()
45 Staff_symbol_engraver::process_music ()
49 span_ = make_spanner ("StaffSymbol", SCM_EOL);
51 span_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
58 Staff_symbol_engraver::finalize ()
62 span_->set_bound (RIGHT,unsmob_grob (get_property ("currentCommandColumn")));
68 Staff_symbol_engraver::acknowledge_grob (Grob_info s)
70 s.grob_->set_property ("staff-symbol", span_->self_scm ());
72 // remove this. probly not necessary?
73 s.grob_->add_dependency (span_); // UGH. UGH. UGH
79 ENTER_DESCRIPTION (Staff_symbol_engraver,
80 /* descr */ "Create the constellation of five (default) "
82 /* creats*/ "StaffSymbol",
84 /* acks */ "grob-interface",
88 /****************************************************************/
91 class Tab_staff_symbol_engraver : public Staff_symbol_engraver
94 TRANSLATOR_DECLARATIONS (Tab_staff_symbol_engraver);
96 virtual void process_music ();
100 Tab_staff_symbol_engraver::process_music ()
103 Staff_symbol_engraver::process_music ();
106 int k = scm_ilength (get_property ("stringTunings"));
108 span_->set_property ("line-count", scm_int2num (k));
112 Tab_staff_symbol_engraver::Tab_staff_symbol_engraver ()
116 ENTER_DESCRIPTION (Tab_staff_symbol_engraver,
117 /* descr */ "Create a staff-symbol, but look at stringTunings for the number of lines."
119 /* creats*/ "StaffSymbol",
121 /* acks */ "grob-interface",
122 /* reads */ "stringTunings",