2 script-engraver.cc -- implement Script_engraver
4 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "side-position-interface.hh"
10 #include "musical-request.hh"
12 #include "staff-symbol.hh"
13 #include "rhythmic-head.hh"
14 #include "dimension-cache.hh"
16 #include "engraver.hh"
18 class Script_engraver : public Engraver {
19 Link_array<Script> script_p_arr_;
20 Link_array<Articulation_req> script_req_l_arr_;
23 VIRTUAL_COPY_CONS(Translator);
27 virtual bool do_try_music (Music*);
28 virtual void do_process_music ();
29 virtual void do_pre_move_processing ();
30 virtual void do_post_move_processing ();
31 virtual void acknowledge_element (Score_element_info);
35 Script_engraver::Script_engraver()
37 do_post_move_processing();
41 Script_engraver::do_try_music (Music *r_l)
43 if (Articulation_req *mr = dynamic_cast <Articulation_req *> (r_l))
45 for (int i=0; i < script_req_l_arr_.size(); i++)
47 if (script_req_l_arr_[i]->equal_b (mr))
50 script_req_l_arr_.push (mr);
57 Script_engraver::do_process_music()
59 for (int i=0; i < script_req_l_arr_.size(); i++)
61 Articulation_req* l=script_req_l_arr_[i];
63 SCM list = scm_eval (gh_list (ly_symbol2scm ("articulation-to-scriptdef"),
64 ly_str02scm (l->articulation_str_.ch_C()),
67 if (list == SCM_BOOL_F)
69 l->warning (_f ("Don't know how to interpret articulation `%s'",
70 l->articulation_str_.ch_C ()));
73 Script *p =new Script;
74 Side_position_interface stafy (p);
78 p->set_elt_property ("molecule",
82 bool follow_staff = gh_scm2bool (gh_car (list));
84 int relative_stem_dir = gh_scm2int (gh_car (list));
86 int force_dir =gh_scm2int (gh_car (list));
88 SCM priority = gh_car (list);
91 if (relative_stem_dir)
92 p->set_elt_property ("side-relative-direction", gh_int2scm (relative_stem_dir));
94 stafy.set_direction ((Direction)force_dir);
96 if (l->get_direction ())
97 stafy.set_direction (l->get_direction ());
99 SCM axisprop = get_property ("scriptHorizontal");
100 bool xaxis = to_boolean (axisprop);
102 stafy.set_axis (X_AXIS);
104 stafy.set_axis (Y_AXIS);
106 if (!follow_staff && ! xaxis)
107 p->set_elt_property ("staff-support", SCM_BOOL_T);
109 if (!xaxis && follow_staff)
110 stafy.set_quantised (Y_AXIS);
112 p->set_elt_property ("script-priority", priority);
114 script_p_arr_.push (p);
116 announce_element (Score_element_info (p, l));
121 Script_engraver::acknowledge_element (Score_element_info inf)
123 bool them_grace = to_boolean (inf.elem_l_->get_elt_property ("grace"));
124 bool us_grace = to_boolean (get_property ("weAreGraceContext"));
126 if (us_grace != them_grace)
129 if (Stem *s = dynamic_cast<Stem*>(inf.elem_l_))
131 for (int i=0; i < script_p_arr_.size(); i++)
133 Side_position_interface stafy (script_p_arr_[i]);
134 stafy.elt_l_->set_elt_property ("direction-source", s->self_scm_);
135 stafy.add_support (s);
138 else if (Rhythmic_head * rh = dynamic_cast<Rhythmic_head*>(inf.elem_l_))
140 for (int i=0; i < script_p_arr_.size(); i++)
142 Side_position_interface stafy(script_p_arr_[i]);
144 if (!stafy.elt_l_->parent_l (X_AXIS))
146 stafy.elt_l_->set_parent (inf.elem_l_, X_AXIS);
148 if (stafy.get_axis () == X_AXIS
149 && !stafy.elt_l_->parent_l (Y_AXIS))
150 stafy.elt_l_->set_parent (rh, Y_AXIS);
152 stafy.add_support (rh);
158 Script_engraver::do_pre_move_processing()
160 for (int i=0; i < script_p_arr_.size(); i++)
162 if (to_boolean (script_p_arr_[i]->remove_elt_property ("staff-support")))
163 side_position (script_p_arr_[i]).add_staff_support ();
164 typeset_element (script_p_arr_[i]);
166 script_p_arr_.clear();
170 Script_engraver::do_post_move_processing()
172 script_req_l_arr_.clear();
175 ADD_THIS_TRANSLATOR(Script_engraver);