2 rhythmic-column-grav.cc -- implement Rhythmic_column_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "dimension-cache.hh"
11 #include "engraver.hh"
12 #include "note-head.hh"
14 #include "note-column.hh"
15 #include "dot-column.hh"
16 #include "musical-request.hh"
18 class Rhythmic_column_engraver :public Engraver
20 Link_array<Rhythmic_head> rhead_l_arr_;
21 Link_array<Slur> grace_slur_endings_;
24 Dot_column *dotcol_l_;
27 VIRTUAL_COPY_CONS(Translator);
28 virtual void acknowledge_element (Score_element_info);
29 virtual void process_acknowledged ();
30 virtual void do_pre_move_processing();
31 virtual void do_post_move_processing();
33 Rhythmic_column_engraver();
39 Rhythmic_column_engraver::Rhythmic_column_engraver()
48 Rhythmic_column_engraver::process_acknowledged ()
50 if (rhead_l_arr_.size ())
54 ncol_p_ = new Note_column (SCM_EOL);
55 announce_element (Score_element_info (ncol_p_, 0));
58 for (int i=0; i < rhead_l_arr_.size (); i++)
60 if (!rhead_l_arr_[i]->parent_l(X_AXIS))
61 ncol_p_->add_head (rhead_l_arr_[i]);
63 rhead_l_arr_.set_size (0);
70 && !dotcol_l_->parent_l(X_AXIS))
72 ncol_p_->set_dotcol (dotcol_l_);
76 && !stem_l_->parent_l(X_AXIS))
78 ncol_p_->set_stem (stem_l_);
82 SCM wg = get_property ("weAreGraceContext");
83 bool wegrace = to_boolean (wg);
86 for (int i=0; i < grace_slur_endings_.size(); i++)
87 grace_slur_endings_[i]->add_column (ncol_p_);
88 grace_slur_endings_.clear ();
93 Rhythmic_column_engraver::acknowledge_element (Score_element_info i)
95 SCM wg = get_property ("weAreGraceContext");
96 bool wegrace = to_boolean (wg);
98 (i.elem_l_->get_elt_property ("grace") != SCM_UNDEFINED))
99 && !dynamic_cast<Slur*> (i.elem_l_))
102 Item * item = dynamic_cast <Item *> (i.elem_l_);
103 if (Stem*s=dynamic_cast<Stem *> (item))
107 else if (Rhythmic_head*r=dynamic_cast<Rhythmic_head *> (item))
109 rhead_l_arr_.push (r);
111 else if (Dot_column*d =dynamic_cast<Dot_column *> (item))
115 else if (Slur *s = dynamic_cast<Slur*> (i.elem_l_))
118 end slurs starting on grace notes
121 if (to_boolean (s->get_elt_property ("grace")))
122 grace_slur_endings_.push (s);
127 Rhythmic_column_engraver::do_pre_move_processing()
131 typeset_element (ncol_p_);
137 Rhythmic_column_engraver::do_post_move_processing()
139 grace_slur_endings_.clear ();
144 ADD_THIS_TRANSLATOR(Rhythmic_column_engraver);