2 hara-kiri-engraver.cc -- implement Hara_kiri_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
10 #include "axis-group-engraver.hh"
11 #include "hara-kiri-group-spanner.hh"
12 #include "rhythmic-head.hh"
15 #include "translator.icc"
17 class Hara_kiri_engraver : public Axis_group_engraver
20 virtual Spanner *get_spanner ();
21 DECLARE_ACKNOWLEDGER (grob);
22 virtual void add_element (Grob *e);
23 void start_translation_timestep ();
24 virtual void derived_mark () const;
27 TRANSLATOR_DECLARATIONS (Hara_kiri_engraver);
31 Hara_kiri_engraver::derived_mark () const
33 scm_gc_mark (interesting_);
37 Hara_kiri_engraver::start_translation_timestep ()
39 Axis_group_engraver::start_translation_timestep ();
40 interesting_ = get_property ("keepAliveInterfaces");
45 Hara_kiri_engraver::add_element (Grob *e)
47 Hara_kiri_group_spanner::add_element (staffline_, e);
51 Hara_kiri_engraver::get_spanner ()
53 Spanner *sp = make_spanner ("RemoveEmptyVerticalGroup", SCM_EOL);
59 Hara_kiri_engraver::acknowledge_grob (Grob_info i)
61 Axis_group_engraver::acknowledge_grob (i);
64 for (SCM s = interesting_; scm_is_pair (s); s = scm_cdr (s))
66 if (i.grob ()->internal_has_interface (scm_car (s)))
67 Hara_kiri_group_spanner::add_interesting_item (staffline_, i.grob ());
72 Hara_kiri_engraver::Hara_kiri_engraver ()
74 interesting_ = SCM_EOL;
78 ADD_ACKNOWLEDGER (Hara_kiri_engraver, grob);
79 ADD_TRANSLATOR (Hara_kiri_engraver,
80 /* descr */ "Like Axis_group_engraver, but make a hara-kiri spanner, and add "
81 "interesting items (ie. note heads, lyric syllables and normal rests) ",
82 /* creats*/ "RemoveEmptyVerticalGroup",
84 /* reads */ "keepAliveInterfaces",