2 new-staff-margin-engraver.cc -- implement Instrument_name_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "engraver.hh"
13 #include "system-start-delimiter.hh"
14 #include "side-position-interface.hh"
15 #include "align-interface.hh"
16 #include "axis-group-interface.hh"
17 #include "translator-group.hh"
19 class Instrument_name_engraver : public Engraver
24 void create_text (SCM s);
26 TRANSLATOR_DECLARATIONS(Instrument_name_engraver);
28 virtual void initialize ();
29 virtual void acknowledge_grob (Grob_info);
30 virtual void stop_translation_timestep ();
35 Instrument_name_engraver::Instrument_name_engraver ()
43 Instrument_name_engraver::initialize ()
45 daddy_trans_l_->set_property ("instrumentSupport", SCM_EOL);
49 Instrument_name_engraver::stop_translation_timestep ()
53 text_->set_grob_property ("side-support-elements",
54 get_property ("instrumentSupport"));
61 Instrument_name_engraver::create_text (SCM txt)
65 text_ = new Item (get_property ("InstrumentName"));
67 if (text_->get_grob_property ("text") != txt)
68 text_->set_grob_property ("text", txt);
71 text_->set_parent (delim_, Y_AXIS);
73 announce_grob (text_,0);
78 Instrument_name_engraver::acknowledge_grob (Grob_info i)
80 if (Bar::has_interface (i.grob_l_))
82 SCM s = get_property ("instrument");
84 if (now_mom () > Moment (0))
85 s = get_property ("instr");
88 FIXME: use markup_p () to check type.
90 if (gh_string_p (s) || gh_pair_p (s))
94 if (dynamic_cast<Spanner*> (i.grob_l_)
95 && i.grob_l_->has_interface (ly_symbol2scm ("dynamic-interface")))
99 Hang the instrument names on the staves, but not on the alignment
100 groups enclosing that staff. The alignment has no real location,
101 but is only a vehicle for the placement routine it contains, and
102 therefore the location of its refpoint won't be very useful.
105 if (dynamic_cast<Spanner*> (i.grob_l_)
106 && ((Axis_group_interface::has_interface (i.grob_l_)
107 && Axis_group_interface::axis_b (i.grob_l_, Y_AXIS)))
108 && !Align_interface::has_interface (i.grob_l_))
110 SCM nl = gh_cons (i.grob_l_->self_scm (),
111 get_property ("instrumentSupport"));
113 daddy_trans_l_->set_property ("instrumentSupport", nl);
120 ENTER_DESCRIPTION(Instrument_name_engraver,
121 /* descr */ " Prints the name of the instrument (specified by
122 @code{Staff.instrument} and @code{Staff.instr})
125 /* creats*/ "InstrumentName",
126 /* acks */ "bar-line-interface axis-group-interface",
127 /* reads */ "instrument instr",