2 slur-grav.cc -- implement Slur_engraver
4 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 #include "musical-request.hh"
9 #include "slur-engraver.hh"
12 #include "note-column.hh"
13 #include "translator-group.hh"
14 #include "engraver.hh"
17 class Slur_engraver :public Engraver {
18 Link_array<Span_req> requests_arr_;
19 Link_array<Span_req> new_slur_req_l_arr_;
20 Link_array<Score_element> slur_l_stack_;
21 Link_array<Score_element> end_slur_l_arr_;
23 void set_melisma (bool);
25 virtual bool do_try_music (Music*);
26 virtual void do_process_music ();
27 virtual void acknowledge_element (Score_element_info);
28 virtual void do_pre_move_processing ();
29 virtual void do_post_move_processing ();
30 virtual void do_removal_processing ();
33 VIRTUAL_COPY_CONS (Translator);
38 Slur_engraver::do_try_music (Music *req_l)
40 if (Span_req *sl = dynamic_cast <Span_req *> (req_l))
42 if (sl->span_type_str_ != "slur")
44 new_slur_req_l_arr_.push (sl);
52 Slur_engraver::set_melisma (bool m)
54 daddy_trans_l_->set_property ("slurMelismaBusy", m ? SCM_BOOL_T :SCM_BOOL_F);
58 Slur_engraver::acknowledge_element (Score_element_info info)
60 if (Note_column::has_interface (info.elem_l_))
62 Score_element *e =info.elem_l_;
63 for (int i = 0; i < slur_l_stack_.size (); i++)
64 Slur::add_column (slur_l_stack_[i], e);
65 for (int i = 0; i < end_slur_l_arr_.size (); i++)
66 Slur::add_column (end_slur_l_arr_[i], e);
71 Slur_engraver::do_removal_processing ()
73 for (int i = 0; i < slur_l_stack_.size (); i++)
75 typeset_element (slur_l_stack_[i]);
77 slur_l_stack_.clear ();
78 SCM wg = get_property ("weAreGraceContext");
79 bool wgb = to_boolean (wg);
81 for (int i=0; i < requests_arr_.size (); i++)
83 requests_arr_[i]->warning (_ ("unterminated slur"));
88 Slur_engraver::do_process_music ()
90 Link_array<Score_element> start_slur_l_arr_;
91 for (int i=0; i< new_slur_req_l_arr_.size (); i++)
93 Span_req* slur_req_l = new_slur_req_l_arr_[i];
94 // end slur: move the slur to other array
95 if (slur_req_l->span_dir_ == STOP)
97 if (slur_l_stack_.empty ())
99 slur_req_l->warning (_f ("can't find both ends of %s", _ ("slur")));
102 Score_element* slur = slur_l_stack_.pop ();
103 SCM s = get_property ("slurEndAttachment");
106 index_set_cell (slur->get_elt_property ("attachment"), STOP, s);
108 end_slur_l_arr_.push (slur);
109 requests_arr_.pop ();
112 else if (slur_req_l->span_dir_ == START)
114 // push a new slur onto stack.
115 // (use temp. array to wait for all slur STOPs)
116 Score_element* slur = new Spanner (get_property ("basicSlurProperties"));
117 Slur::set_interface (slur);
118 SCM s = get_property ("slurBeginAttachment");
121 index_set_cell (slur->get_elt_property ("attachment"), START, s);
123 start_slur_l_arr_.push (slur);
124 requests_arr_.push (slur_req_l);
125 announce_element (Score_element_info (slur, slur_req_l));
128 for (int i=0; i < start_slur_l_arr_.size (); i++)
129 slur_l_stack_.push (start_slur_l_arr_[i]);
133 Slur_engraver::do_pre_move_processing ()
135 for (int i = 0; i < end_slur_l_arr_.size (); i++)
137 typeset_element (end_slur_l_arr_[i]);
139 end_slur_l_arr_.clear ();
143 Slur_engraver::do_post_move_processing ()
145 new_slur_req_l_arr_.clear ();
146 SCM m = get_property ("automaticMelismata");
149 set_melisma (slur_l_stack_.size ());
154 ADD_THIS_TRANSLATOR (Slur_engraver);