2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #include "engraver.hh"
21 #include "output-def.hh"
22 #include "paper-column.hh"
23 #include "pointer-group-interface.hh"
24 #include "side-position-interface.hh"
26 #include "staff-symbol.hh"
27 #include "system-start-delimiter.hh"
29 #include "translator.icc"
31 struct Bracket_nesting_node
34 virtual ~Bracket_nesting_node () {}
35 virtual bool add_staff (Grob *) { return false; }
36 virtual void add_support (Grob *) {}
37 virtual void set_bound (Direction, Grob *) {}
38 virtual void set_nesting_support (Grob *) {}
39 virtual void create_grobs (Engraver *, SCM) {}
42 struct Bracket_nesting_group : public Bracket_nesting_node
45 vector<Bracket_nesting_node *> children_;
49 virtual void add_support (Grob *grob);
50 virtual bool add_staff (Grob *grob);
51 virtual void set_nesting_support (Grob *);
52 virtual void set_bound (Direction, Grob *grob);
53 virtual void create_grobs (Engraver *, SCM);
54 ~Bracket_nesting_group ();
55 Bracket_nesting_group ();
58 struct Bracket_nesting_staff : public Bracket_nesting_node
62 Bracket_nesting_staff (Grob *s) { staff_ = s; }
63 virtual bool add_staff (Grob *);
66 Bracket_nesting_group::Bracket_nesting_group ()
73 Bracket_nesting_staff::add_staff (Grob *g)
84 Bracket_nesting_group::create_grobs (Engraver *engraver, SCM default_type)
86 SCM type = scm_is_symbol (symbol_) ? symbol_ : default_type;
87 delimiter_ = engraver->make_spanner (ly_symbol2string (type).c_str (),
90 for (vsize i = 0; i < children_.size (); i++)
91 children_[i]->create_grobs (engraver, default_type);
95 Bracket_nesting_group::add_support (Grob *g)
97 Side_position_interface::add_support (g, delimiter_);
98 for (vsize i = 0; i < children_.size (); i++)
99 children_[i]->add_support (g);
102 Bracket_nesting_group::~Bracket_nesting_group ()
104 junk_pointers (children_);
108 Bracket_nesting_group::set_bound (Direction d, Grob *g)
110 delimiter_->set_bound (d, g);
111 for (vsize i = 0; i < children_.size (); i++)
112 children_[i]->set_bound (d, g);
116 Bracket_nesting_group::set_nesting_support (Grob *parent)
119 Side_position_interface::add_support (delimiter_, parent);
121 for (vsize i = 0; i < children_.size (); i++)
122 children_[i]->set_nesting_support (delimiter_);
126 Bracket_nesting_group::from_list (SCM x)
128 for (SCM s = x; scm_is_pair (s); s = scm_cdr (s))
130 SCM entry = scm_car (s);
131 if (scm_is_pair (entry))
133 Bracket_nesting_group *node = new Bracket_nesting_group;
134 node->from_list (entry);
135 children_.push_back (node);
137 else if (scm_is_eq (entry, ly_symbol2scm ("SystemStartBrace"))
138 || scm_is_eq (entry, ly_symbol2scm ("SystemStartBracket"))
139 || scm_is_eq (entry, ly_symbol2scm ("SystemStartBar"))
140 || scm_is_eq (entry, ly_symbol2scm ("SystemStartSquare")))
143 children_.push_back (new Bracket_nesting_staff (0));
148 Bracket_nesting_group::add_staff (Grob *grob)
150 for (vsize i = 0; i < children_.size (); i++)
152 if (children_[i]->add_staff (grob))
154 Pointer_group_interface::add_grob (delimiter_,
155 ly_symbol2scm ("elements"), grob);
164 class System_start_delimiter_engraver : public Engraver
167 TRANSLATOR_DECLARATIONS (System_start_delimiter_engraver);
170 Bracket_nesting_group *nesting_;
172 void acknowledge_system_start_delimiter (Grob_info);
173 void acknowledge_staff_symbol (Grob_info);
175 void process_music ();
176 virtual void finalize ();
179 System_start_delimiter_engraver::System_start_delimiter_engraver (Context *c)
186 System_start_delimiter_engraver::process_music ()
190 nesting_ = new Bracket_nesting_group ();
191 SCM hierarchy = get_property ("systemStartDelimiterHierarchy");
192 SCM delimiter_name = get_property ("systemStartDelimiter");
194 nesting_->from_list (hierarchy);
195 nesting_->create_grobs (this, delimiter_name);
196 nesting_->set_bound (LEFT,
197 unsmob<Grob> (get_property ("currentCommandColumn")));
202 System_start_delimiter_engraver::finalize ()
206 nesting_->set_bound (RIGHT,
207 unsmob<Grob> (get_property ("currentCommandColumn")));
208 nesting_->set_nesting_support (0);
215 System_start_delimiter_engraver::acknowledge_staff_symbol (Grob_info inf)
217 Grob *staff = inf.grob ();
218 bool succ = nesting_->add_staff (staff);
222 nesting_->children_.push_back (new Bracket_nesting_staff (0));
223 nesting_->add_staff (staff);
228 System_start_delimiter_engraver::acknowledge_system_start_delimiter (Grob_info inf)
230 nesting_->add_support (inf.grob ());
235 System_start_delimiter_engraver::boot ()
237 ADD_ACKNOWLEDGER (System_start_delimiter_engraver, staff_symbol);
238 ADD_ACKNOWLEDGER (System_start_delimiter_engraver, system_start_delimiter);
241 ADD_TRANSLATOR (System_start_delimiter_engraver,
243 "Create a system start delimiter (i.e., a"
244 " @code{SystemStartBar}, @code{SystemStartBrace},"
245 " @code{SystemStartBracket} or @code{SystemStartSquare}"
251 "SystemStartBracket "
255 "systemStartDelimiter "
256 "systemStartDelimiterHierarchy "
257 "currentCommandColumn ",