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 "rhythmic-head.hh"
13 #include "engraver.hh"
15 class Script_engraver : public Engraver {
16 Link_array<Score_element> script_p_arr_;
17 Link_array<Articulation_req> script_req_l_arr_;
20 VIRTUAL_COPY_CONS(Translator);
24 virtual bool do_try_music (Music*);
25 virtual void do_process_music ();
26 virtual void do_pre_move_processing ();
27 virtual void do_post_move_processing ();
28 virtual void acknowledge_element (Score_element_info);
32 Script_engraver::Script_engraver()
34 do_post_move_processing();
38 Script_engraver::do_try_music (Music *r_l)
40 if (Articulation_req *mr = dynamic_cast <Articulation_req *> (r_l))
42 for (int i=0; i < script_req_l_arr_.size(); i++)
44 if (script_req_l_arr_[i]->equal_b (mr))
47 script_req_l_arr_.push (mr);
54 Script_engraver::do_process_music()
56 for (int i=0; i < script_req_l_arr_.size(); i++)
58 Articulation_req* l=script_req_l_arr_[i];
60 SCM list = scm_assoc (ly_str02scm (l->articulation_str_.ch_C ()),
61 scm_eval2 (ly_symbol2scm ("script-alist"),
64 if (list == SCM_BOOL_F)
66 l->origin ()->warning (_f ("Don't know how to interpret articulation `%s'",
67 l->articulation_str_.ch_C ()));
70 // todo -> use result of articulation-to-scriptdef directly as basic prop list.
71 Score_element *p =new Item (get_property ("basicScriptProperties"));
72 Script::set_interface (p);
74 p->add_offset_callback (Side_position::centered_on_parent, X_AXIS);
77 p->set_elt_property ("molecule",
81 bool follow_staff = gh_scm2bool (gh_car (list));
83 int relative_stem_dir = gh_scm2int (gh_car (list));
85 int force_dir =gh_scm2int (gh_car (list));
87 SCM priority = gh_car (list);
90 if (relative_stem_dir)
91 p->set_elt_property ("side-relative-direction", gh_int2scm (relative_stem_dir));
93 Side_position::set_direction (p,(Direction)force_dir);
95 if (l->get_direction ())
96 Side_position::set_direction (p, l->get_direction ());
98 SCM axisprop = get_property ("scriptHorizontal");
99 bool xaxis = to_boolean (axisprop);
100 Side_position::set_axis (p, xaxis ? X_AXIS : Y_AXIS);
102 if (!follow_staff && ! xaxis)
103 p->set_elt_property ("staff-support", SCM_BOOL_T);
105 if (!xaxis && follow_staff)
106 p->add_offset_callback (Side_position::quantised_position, Y_AXIS);
109 p->set_elt_property ("script-priority", priority);
111 script_p_arr_.push (p);
113 announce_element (p, l);
118 Script_engraver::acknowledge_element (Score_element_info inf)
120 bool them_grace = to_boolean (inf.elem_l_->get_elt_property ("grace"));
121 bool us_grace = to_boolean (get_property ("weAreGraceContext"));
123 if (us_grace != them_grace)
126 if (Stem::has_interface (inf.elem_l_))
128 for (int i=0; i < script_p_arr_.size(); i++)
130 Score_element*e = script_p_arr_[i];
132 e->set_elt_property ("direction-source", inf.elem_l_->self_scm ());
133 Side_position::add_support (e, inf.elem_l_);
136 else if (Rhythmic_head::has_interface (inf.elem_l_))
138 for (int i=0; i < script_p_arr_.size(); i++)
140 Score_element *e = script_p_arr_[i];
142 if (!e->parent_l (X_AXIS))
144 e->set_parent (inf.elem_l_, X_AXIS);
146 if (Side_position::get_axis (e) == X_AXIS
147 && !e->parent_l (Y_AXIS))
148 e->set_parent (inf.elem_l_, Y_AXIS);
150 Side_position::add_support (e,inf.elem_l_);
156 Script_engraver::do_pre_move_processing()
158 for (int i=0; i < script_p_arr_.size(); i++)
160 Score_element * sc = script_p_arr_[i];
161 if (to_boolean (sc->get_elt_property ("staff-support")))
163 Side_position::add_staff_support (sc);
165 typeset_element (sc);
167 script_p_arr_.clear();
171 Script_engraver::do_post_move_processing()
173 script_req_l_arr_.clear();
176 ADD_THIS_TRANSLATOR(Script_engraver);