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>
11 #include "engraver.hh"
12 #include "rhythmic-head.hh"
14 #include "note-column.hh"
15 #include "dot-column.hh"
16 #include "musical-request.hh"
19 class Rhythmic_column_engraver :public Engraver
21 Link_array<Score_element> rhead_l_arr_;
22 Link_array<Score_element> grace_slur_endings_;
23 Score_element * stem_l_;
24 Score_element *ncol_p_;
25 Score_element *dotcol_l_;
28 VIRTUAL_COPY_CONS(Translator);
29 virtual void acknowledge_element (Score_element_info);
30 virtual void process_acknowledged ();
31 virtual void do_pre_move_processing();
32 virtual void do_post_move_processing();
34 Rhythmic_column_engraver();
40 Rhythmic_column_engraver::Rhythmic_column_engraver()
49 Rhythmic_column_engraver::process_acknowledged ()
51 if (rhead_l_arr_.size ())
55 ncol_p_ = new Item (get_property("NoteColumn"));
56 Note_column::set_interface (ncol_p_);
57 announce_element (ncol_p_, 0);
60 for (int i=0; i < rhead_l_arr_.size (); i++)
62 if (!rhead_l_arr_[i]->parent_l(X_AXIS))
63 Note_column::add_head (ncol_p_, rhead_l_arr_[i]);
65 rhead_l_arr_.set_size (0);
72 && !dotcol_l_->parent_l (X_AXIS))
74 Note_column::set_dotcol (ncol_p_, dotcol_l_);
78 && !stem_l_->parent_l(X_AXIS))
80 Note_column::set_stem (ncol_p_, stem_l_);
84 SCM wg = get_property ("weAreGraceContext");
85 bool wegrace = to_boolean (wg);
88 for (int i=0; i < grace_slur_endings_.size(); i++)
89 Slur::add_column (grace_slur_endings_[i], ncol_p_);
90 grace_slur_endings_.clear ();
95 Rhythmic_column_engraver::acknowledge_element (Score_element_info i)
97 SCM wg = get_property ("weAreGraceContext");
98 bool wegrace = to_boolean (wg);
99 if (wegrace != to_boolean (i.elem_l_->get_elt_property ("grace"))
100 && !Slur::has_interface (i.elem_l_))
103 Item * item = dynamic_cast <Item *> (i.elem_l_);
104 if (item && Stem::has_interface (item))
108 else if (item && Rhythmic_head::has_interface (item))
110 rhead_l_arr_.push (item);
112 else if (item && Dot_column::has_interface (item))
116 else if (Slur::has_interface (i.elem_l_))
119 end slurs starting on grace notes
122 if (to_boolean (i.elem_l_->get_elt_property ("grace")))
123 grace_slur_endings_.push (i.elem_l_);
128 Rhythmic_column_engraver::do_pre_move_processing()
132 typeset_element (ncol_p_);
138 Rhythmic_column_engraver::do_post_move_processing()
140 grace_slur_endings_.clear ();
145 ADD_THIS_TRANSLATOR(Rhythmic_column_engraver);