2 mark-engraver.cc -- implement Mark_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2001 Jan Nieuwenhuizen <janneke@gnu.org>
11 #include "command-request.hh"
12 #include "staff-symbol.hh"
13 #include "engraver-group-engraver.hh"
14 #include "engraver.hh"
15 #include "lily-guile.hh"
16 #include "paper-column.hh"
17 #include "paper-def.hh"
19 #include "side-position-interface.hh"
20 #include "staff-symbol-referencer.hh"
22 #include "group-interface.hh"
25 put stuff over or next to bars. Examples: bar numbers, marginal notes,
28 class Mark_engraver : public Engraver
31 TRANSLATOR_DECLARATIONS(Mark_engraver);
36 virtual void stop_translation_timestep ();
37 virtual void acknowledge_grob (Grob_info);
38 void create_items (Request*);
39 virtual bool try_music (Music *req_l);
40 virtual void start_translation_timestep ();
41 virtual void initialize ();
42 virtual void process_music ();
45 Mark_req * mark_req_l_;
52 Mark_engraver::Mark_engraver ()
59 Mark_engraver::initialize ()
61 daddy_trans_l_->set_property ("stavesFound", SCM_EOL); // ugh: sharing with barnumber grav.
69 which grobs carry INVISIBLE-STAFF ?
74 Mark_engraver::acknowledge_grob (Grob_info inf)
76 Grob * s = inf.grob_l_;
77 if (Staff_symbol::has_interface (s)
78 || to_boolean (s->get_grob_property ("invisible-staff")))
80 SCM sts = get_property ("stavesFound");
81 SCM thisstaff = inf.grob_l_->self_scm ();
82 if (scm_memq (thisstaff, sts) == SCM_BOOL_F)
83 daddy_trans_l_->set_property ("stavesFound", gh_cons (thisstaff, sts));
85 else if (text_p_ && Bar::has_interface (s))
88 Ugh. Figure out how to do this right at beginning of line, (without
89 creating class Bar_script : public Item).
91 text_p_->set_parent (s, X_AXIS);
96 Mark_engraver::stop_translation_timestep ()
100 text_p_->set_grob_property ("side-support-elements" , get_property ("stavesFound"));
101 typeset_grob (text_p_);
108 Mark_engraver::create_items (Request *rq)
113 SCM s = get_property ("RehearsalMark");
114 text_p_ = new Item (s);
117 Side_position_interface::set_axis (text_p_, Y_AXIS);
119 announce_grob (text_p_, rq);
124 Mark_engraver::start_translation_timestep ()
131 Mark_engraver::try_music (Music* r_l)
133 if (Mark_req *mr = dynamic_cast <Mark_req *> (r_l))
135 if (mark_req_l_ && mr->equal_b (mark_req_l_))
148 TODO: make the increment function in Scheme.
152 Mark_engraver::process_music ()
156 create_items (mark_req_l_);
164 SCM m = mark_req_l_->get_mus_property ("label");
165 if (gh_pair_p (m)) // markup text
166 text_p_->set_grob_property ("text",m);
169 if (!gh_string_p (m))
170 m = get_property ("rehearsalMark");
175 int mark_count = gh_scm2int (m);
176 t = to_str (mark_count);
178 m = gh_int2scm (mark_count);
180 else if (gh_string_p (m))
182 t = ly_scm2string (m);
190 m = ly_str02scm (next.ch_C ());
197 daddy_trans_l_->set_property ("rehearsalMark", m);
199 text_p_->set_grob_property ("text",
200 ly_str02scm (t.ch_C ()));
202 String style = "mark";
203 for (int i=0; i < t.length_i (); i++)
211 SCM st = ly_symbol2scm (style.ch_C ());
212 text_p_->set_grob_property ("font-style", st);
218 ENTER_DESCRIPTION(Mark_engraver,
220 /* creats*/ "RehearsalMark",
221 /* acks */ "grob-interface",
222 /* reads */ "rehearsalMark stavesFound",