2 staff-symbol-engraver.cc -- implement Staff_symbol_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "paper-column.hh"
11 #include "output-def.hh"
12 #include "side-position-interface.hh"
13 #include "engraver.hh"
17 Manage the staff symbol.
19 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 ();
33 Staff_symbol_engraver::~Staff_symbol_engraver ()
38 Staff_symbol_engraver::Staff_symbol_engraver ()
44 Staff_symbol_engraver::process_music ()
48 span_ = make_spanner ("StaffSymbol", SCM_EOL);
50 span_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn")));
55 Staff_symbol_engraver::finalize ()
59 span_->set_bound (RIGHT, unsmob_grob (get_property ("currentCommandColumn")));
65 Staff_symbol_engraver::acknowledge_grob (Grob_info s)
67 s.grob_->set_property ("staff-symbol", span_->self_scm ());
70 ADD_TRANSLATOR (Staff_symbol_engraver,
71 /* descr */ "Create the constellation of five (default) "
73 /* creats*/ "StaffSymbol",
75 /* acks */ "grob-interface",
79 /****************************************************************/
81 class Tab_staff_symbol_engraver : public Staff_symbol_engraver
84 TRANSLATOR_DECLARATIONS (Tab_staff_symbol_engraver);
86 virtual void process_music ();
90 Tab_staff_symbol_engraver::process_music ()
93 Staff_symbol_engraver::process_music ();
96 int k = scm_ilength (get_property ("stringTunings"));
98 span_->set_property ("line-count", scm_int2num (k));
102 Tab_staff_symbol_engraver::Tab_staff_symbol_engraver ()
106 ADD_TRANSLATOR (Tab_staff_symbol_engraver,
107 /* descr */ "Create a staff-symbol, but look at stringTunings for the number of lines."
109 /* creats*/ "StaffSymbol",
111 /* acks */ "grob-interface",
112 /* reads */ "stringTunings",