2 a2-engraver.cc -- implement A2_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
11 #include "note-head.hh"
14 #include "translator-group.hh"
15 #include "side-position-interface.hh"
16 #include "directional-element-interface.hh"
19 class A2_engraver : public Engraver
23 VIRTUAL_COPY_CONS (Translator);
25 virtual void acknowledge_grob (Grob_info);
26 virtual void create_grobs ();
27 virtual void stop_translation_timestep ();
30 enum State { SOLO, SPLIT_INTERVAL, UNIRHYTHM, UNISILENCE, UNISON } state_;
33 ADD_THIS_TRANSLATOR (A2_engraver);
35 A2_engraver::A2_engraver ()
42 A2_engraver::create_grobs ()
44 if (!to_boolean (get_property ("combineParts")))
48 SCM unison = get_property ("unison");
49 SCM solo = get_property ("solo");
50 SCM solo_adue = get_property ("soloADue");
52 if (solo_adue == SCM_BOOL_T
53 && ((solo == SCM_BOOL_T && state_ != SOLO)
54 || (unison == SCM_BOOL_T && state_ != UNISON
55 && daddy_trans_l_->id_str_.left_str (3) == "one")))
57 text_p_ = new Item (get_property ("TextScript"));
58 Side_position::set_axis (text_p_, Y_AXIS);
59 announce_grob (text_p_, 0);
63 if (solo == SCM_BOOL_T)
66 if (daddy_trans_l_->id_str_.left_str (3) == "one")
68 text = get_property ("soloText");
72 text = get_property ("soloIIText");
76 else if (unison == SCM_BOOL_T)
79 if (daddy_trans_l_->id_str_.left_str (3) == "one")
80 text = get_property ("aDueText");
83 Side_position::set_direction (text_p_, dir);
84 text_p_->set_grob_property ("text", text);
90 A2_engraver::acknowledge_grob (Grob_info i)
92 if (!to_boolean (get_property ("combineParts")))
97 if (Note_head::has_interface (i.elem_l_))
100 Side_position::add_support (t, i.elem_l_);
101 if (Side_position::get_axis (t) == X_AXIS
102 && !t->parent_l (Y_AXIS))
103 t->set_parent (i.elem_l_, Y_AXIS);
105 if (Stem::has_interface (i.elem_l_))
107 Side_position::add_support (text_p_, i.elem_l_);
111 SCM unisilence = get_property ("unisilence");
112 SCM unison = get_property ("unison");
113 SCM unirhythm = get_property ("unirhythm");
114 SCM solo = get_property ("solo");
115 SCM split_interval = get_property ("split-interval");
116 SCM solo_adue = get_property ("soloADue");
118 State previous_state = state_;
119 if (unisilence == SCM_BOOL_T)
124 else if (solo == SCM_BOOL_T)
126 else if (unison == SCM_BOOL_T)
128 else if (unirhythm == SCM_BOOL_T && split_interval == SCM_BOOL_T)
129 state_ = SPLIT_INTERVAL;
133 if (Stem::has_interface (i.elem_l_)
134 || Slur::has_interface (i.elem_l_)
136 Usually, dynamics are removed by *_devnull_engravers for the
137 second voice. On the one hand, we don't want all dynamics for
138 the first voice to be placed above the staff. On the other
139 hand, colliding of scripts may be worse */
141 || i.elem_l_->has_interface (ly_symbol2scm ("dynamic-interface"))
142 || i.elem_l_->has_interface (ly_symbol2scm ("text-interface"))
147 Hmm. We must set dir when solo, in order to get
148 the rests collided to the right position
150 if ((unirhythm != SCM_BOOL_T) || (solo == SCM_BOOL_T)
151 || ((unisilence == SCM_BOOL_T && previous_state != UNISON))
152 || (unirhythm == SCM_BOOL_T && split_interval == SCM_BOOL_T
153 && (unison != SCM_BOOL_T || solo_adue != SCM_BOOL_T)))
155 if (daddy_trans_l_->id_str_.left_str (3) == "one")
157 i.elem_l_->set_grob_property ("direction", gh_int2scm (1));
159 else if (daddy_trans_l_->id_str_.left_str (3) == "two")
161 i.elem_l_->set_grob_property ("direction", gh_int2scm (-1));
168 A2_engraver::stop_translation_timestep ()
172 Side_position::add_staff_support (text_p_);
173 typeset_grob (text_p_);