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"
16 class Slur_engraver :public Engraver {
17 Link_array<Span_req> requests_arr_;
18 Link_array<Span_req> new_slur_req_l_arr_;
19 Link_array<Slur> slur_l_stack_;
20 Link_array<Slur> end_slur_l_arr_;
22 void set_melisma (bool);
24 virtual bool do_try_music (Music*);
25 virtual void do_process_music();
26 virtual void acknowledge_element (Score_element_info);
27 virtual void do_pre_move_processing();
28 virtual void do_post_move_processing();
29 virtual void do_removal_processing ();
32 VIRTUAL_COPY_CONS(Translator);
37 Slur_engraver::do_try_music (Music *req_l)
39 if (Span_req *sl = dynamic_cast <Span_req *> (req_l))
41 if (sl->span_type_str_ != "slur")
43 new_slur_req_l_arr_.push (sl);
51 Slur_engraver::set_melisma (bool m)
53 daddy_trans_l_->set_property ("slurMelismaBusy", m ? SCM_BOOL_T :SCM_BOOL_F);
57 Slur_engraver::acknowledge_element (Score_element_info info)
59 if (dynamic_cast<Note_column *> (info.elem_l_))
61 Note_column *col_l =dynamic_cast<Note_column *> (info.elem_l_) ;// ugh
62 for (int i = 0; i < slur_l_stack_.size(); i++)
63 slur_l_stack_[i]->add_column (col_l);
64 for (int i = 0; i < end_slur_l_arr_.size(); i++)
65 end_slur_l_arr_[i]->add_column (col_l);
70 Slur_engraver::do_removal_processing ()
72 for (int i = 0; i < slur_l_stack_.size(); i++)
74 typeset_element (slur_l_stack_[i]);
76 slur_l_stack_.clear ();
77 SCM wg = get_property ("weAreGraceContext");
78 bool wgb = to_boolean (wg);
80 for (int i=0; i < requests_arr_.size(); i++)
82 requests_arr_[i]->warning (_ ("unterminated slur"));
87 Slur_engraver::do_process_music()
89 Array<Slur*> start_slur_l_arr_;
90 for (int i=0; i< new_slur_req_l_arr_.size(); i++)
92 Span_req* slur_req_l = new_slur_req_l_arr_[i];
93 // end slur: move the slur to other array
94 if (slur_req_l->span_dir_ == STOP)
96 if (slur_l_stack_.empty())
98 slur_req_l->warning (_f ("can't find both ends of %s", _("slur")));
101 end_slur_l_arr_.push (slur_l_stack_.pop());
105 else if (slur_req_l->span_dir_ == START)
107 // push a new slur onto stack.
108 //(use temp. array to wait for all slur STOPs)
109 Slur * s_p =new Slur (get_property ("basicSlurProperties"));
111 requests_arr_.push (slur_req_l);
112 start_slur_l_arr_.push (s_p);
113 announce_element (Score_element_info (s_p, slur_req_l));
116 for (int i=0; i < start_slur_l_arr_.size(); i++)
117 slur_l_stack_.push (start_slur_l_arr_[i]);
121 Slur_engraver::do_pre_move_processing()
123 for (int i = 0; i < end_slur_l_arr_.size(); i++)
125 typeset_element (end_slur_l_arr_[i]);
127 end_slur_l_arr_.clear();
131 Slur_engraver::do_post_move_processing()
133 new_slur_req_l_arr_.clear();
134 SCM m = get_property ("automaticMelismata");
137 set_melisma (slur_l_stack_.size ());
142 ADD_THIS_TRANSLATOR(Slur_engraver);