2 fall-engraver.cc -- implement Bend_after_engraver
4 (c) 2006 Han-Wen Nienhuys
12 #include "stream-event.hh"
14 #include "translator.icc"
16 class Bend_after_engraver : public Engraver
19 TRANSLATOR_DECLARATIONS (Bend_after_engraver);
20 DECLARE_ACKNOWLEDGER (note_head);
23 DECLARE_TRANSLATOR_LISTENER (bend_after);
24 void process_music ();
25 void stop_translation_timestep ();
26 void start_translation_timestep ();
31 Stream_event *fall_event_;
37 Bend_after_engraver::stop_fall ()
39 bool bar = scm_is_string (get_property ("whichBar"));
42 fall_->set_bound (RIGHT, unsmob_grob (bar
43 ? get_property ("currentCommandColumn")
44 : get_property ("currentMusicalColumn")));
51 Bend_after_engraver::stop_translation_timestep ()
53 if (fall_ && !fall_->get_bound (LEFT))
55 fall_->set_bound (LEFT, note_head_);
56 fall_->set_parent (note_head_, Y_AXIS);
61 Bend_after_engraver::start_translation_timestep ()
63 if (fall_ && now_mom ().main_part_ >= stop_moment_.main_part_)
70 Bend_after_engraver::acknowledge_note_head (Grob_info info)
75 if (note_head_ && fall_)
80 note_head_ = info.grob ();
81 stop_moment_ = now_mom () + get_event_length (info.event_cause ());
84 Bend_after_engraver::Bend_after_engraver ()
91 IMPLEMENT_TRANSLATOR_LISTENER (Bend_after_engraver, bend_after);
93 Bend_after_engraver::listen_bend_after (Stream_event *ev)
99 Bend_after_engraver::process_music ()
101 if (fall_event_ && !fall_)
103 fall_ = make_spanner ("BendAfter", fall_event_->self_scm ());
104 fall_->set_property ("delta-position",
105 scm_from_double (robust_scm2double (fall_event_->get_property ("delta-step"), 0)));
109 ADD_ACKNOWLEDGER (Bend_after_engraver, note_head);
111 ADD_TRANSLATOR (Bend_after_engraver,
112 /* doc */ "Create fall spanners.",
113 /* create */ "BendAfter",
114 /* accept */ "bend-after-event",