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 struct Bracket_nesting_node
32 virtual ~Bracket_nesting_node () {}
33 virtual bool add_staff (Grob *) { return false; }
34 virtual void add_support (Grob *) {}
35 virtual void set_bound (Direction, Grob *) {}
36 virtual void set_nesting_support (Grob *) {}
37 virtual void create_grobs (Engraver *, SCM) {}
40 struct Bracket_nesting_group : public Bracket_nesting_node
43 vector<Bracket_nesting_node *> children_;
47 virtual void add_support (Grob *grob);
48 virtual bool add_staff (Grob *grob);
49 virtual void set_nesting_support (Grob *);
50 virtual void set_bound (Direction, Grob *grob);
51 virtual void create_grobs (Engraver *, SCM);
52 ~Bracket_nesting_group ();
53 Bracket_nesting_group ();
56 struct Bracket_nesting_staff : public Bracket_nesting_node
60 Bracket_nesting_staff (Grob *s) { staff_ = s; }
61 virtual bool add_staff (Grob *);
64 Bracket_nesting_group::Bracket_nesting_group ()
71 Bracket_nesting_staff::add_staff (Grob *g)
82 Bracket_nesting_group::create_grobs (Engraver *engraver, SCM default_type)
84 SCM type = scm_is_symbol (symbol_) ? symbol_ : default_type;
85 delimiter_ = engraver->make_spanner (ly_symbol2string (type).c_str (),
88 for (vsize i = 0; i < children_.size (); i++)
89 children_[i]->create_grobs (engraver, default_type);
93 Bracket_nesting_group::add_support (Grob *g)
95 Side_position_interface::add_support (g, delimiter_);
96 for (vsize i = 0; i < children_.size (); i++)
97 children_[i]->add_support (g);
100 Bracket_nesting_group::~Bracket_nesting_group ()
102 junk_pointers (children_);
106 Bracket_nesting_group::set_bound (Direction d, Grob *g)
108 delimiter_->set_bound (d, g);
109 for (vsize i = 0; i < children_.size (); i++)
110 children_[i]->set_bound (d, g);
114 Bracket_nesting_group::set_nesting_support (Grob *parent)
117 Side_position_interface::add_support (delimiter_, parent);
119 for (vsize i = 0; i < children_.size (); i++)
120 children_[i]->set_nesting_support (delimiter_);
124 Bracket_nesting_group::from_list (SCM x)
126 for (SCM s = x; scm_is_pair (s); s = scm_cdr (s))
128 SCM entry = scm_car (s);
129 if (scm_is_pair (entry))
131 Bracket_nesting_group *node = new Bracket_nesting_group;
132 node->from_list (entry);
133 children_.push_back (node);
135 else if (scm_is_eq (entry, ly_symbol2scm ("SystemStartBrace"))
136 || scm_is_eq (entry, ly_symbol2scm ("SystemStartBracket"))
137 || scm_is_eq (entry, ly_symbol2scm ("SystemStartBar"))
138 || scm_is_eq (entry, ly_symbol2scm ("SystemStartSquare")))
141 children_.push_back (new Bracket_nesting_staff (0));
146 Bracket_nesting_group::add_staff (Grob *grob)
148 for (vsize i = 0; i < children_.size (); i++)
150 if (children_[i]->add_staff (grob))
152 Pointer_group_interface::add_grob (delimiter_,
153 ly_symbol2scm ("elements"), grob);
162 class System_start_delimiter_engraver : public Engraver
165 TRANSLATOR_DECLARATIONS (System_start_delimiter_engraver);
168 Bracket_nesting_group *nesting_;
170 DECLARE_ACKNOWLEDGER (system_start_delimiter);
171 DECLARE_ACKNOWLEDGER (staff_symbol);
173 void process_music ();
174 virtual void finalize ();
177 System_start_delimiter_engraver::System_start_delimiter_engraver ()
183 System_start_delimiter_engraver::process_music ()
187 nesting_ = new Bracket_nesting_group ();
188 SCM hierarchy = get_property ("systemStartDelimiterHierarchy");
189 SCM delimiter_name = get_property ("systemStartDelimiter");
191 nesting_->from_list (hierarchy);
192 nesting_->create_grobs (this, delimiter_name);
193 nesting_->set_bound (LEFT,
194 unsmob<Grob> (get_property ("currentCommandColumn")));
199 System_start_delimiter_engraver::finalize ()
203 nesting_->set_bound (RIGHT,
204 unsmob<Grob> (get_property ("currentCommandColumn")));
205 nesting_->set_nesting_support (0);
212 System_start_delimiter_engraver::acknowledge_staff_symbol (Grob_info inf)
214 Grob *staff = inf.grob ();
215 bool succ = nesting_->add_staff (staff);
219 nesting_->children_.push_back (new Bracket_nesting_staff (0));
220 nesting_->add_staff (staff);
225 System_start_delimiter_engraver::acknowledge_system_start_delimiter (Grob_info inf)
227 nesting_->add_support (inf.grob ());
230 #include "translator.icc"
232 ADD_ACKNOWLEDGER (System_start_delimiter_engraver, staff_symbol);
233 ADD_ACKNOWLEDGER (System_start_delimiter_engraver, system_start_delimiter);
235 ADD_TRANSLATOR (System_start_delimiter_engraver,
237 "Create a system start delimiter (i.e., a"
238 " @code{SystemStartBar}, @code{SystemStartBrace},"
239 " @code{SystemStartBracket} or @code{SystemStartSquare}"
245 "SystemStartBracket "
249 "systemStartDelimiter "
250 "systemStartDelimiterHierarchy "
251 "currentCommandColumn ",