/*
- context.hh -- declare Context
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2004--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2004--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CONTEXT_HH
#define CONTEXT_HH
+#include "duration.hh"
+#include "lily-proto.hh"
#include "listener.hh"
#include "moment.hh"
+#include "scm-hash.hh"
#include "std-vector.hh"
#include "virtual-methods.hh"
-#include "scm-hash.hh"
-#include "lily-proto.hh"
-class Context
+class Context : public Smob<Context>
{
+public:
+ SCM mark_smob () const;
+ int print_smob (SCM, scm_print_state *) const;
+ static const char type_p_name_[];
+ virtual ~Context ();
+private:
Scheme_hash_table *properties_dict () const;
- Context (Context const &src);
+ Context (Context const &src); // Do not define! Not copyable!
- DECLARE_SMOBS (Context);
- DECLARE_CLASSNAME(Context);
+ DECLARE_CLASSNAME (Context);
void terminate ();
private:
friend class Context_handle;
- int iterator_count_;
-
+ /* how many Context_handles point to this Context */
+ int client_count_;
+
/* Used internally by create_context */
Stream_event *infant_event_;
SCM definition_;
/* Additions to the Context_def, given by \with */
SCM definition_mods_;
-
+
SCM properties_scm_;
SCM context_list_;
SCM accepts_list_;
+ SCM default_child_;
SCM aliases_;
Translator_group *implementation_;
- string id_string_;
-
+ std::string id_string_;
+
/* Events reported in the context is sent to this dispatcher. */
Dispatcher *event_source_;
// UGH! initialises implementation_
friend SCM ly_make_global_translator (SCM);
- DECLARE_LISTENER (set_property_from_event);
- DECLARE_LISTENER (unset_property_from_event);
-
+ void set_property_from_event (SCM);
+ void unset_property_from_event (SCM);
+
public:
- string id_string () const { return id_string_; }
+ std::string id_string () const { return id_string_; }
SCM children_contexts () const { return context_list_; }
SCM default_child_context_name () const;
SCM internal_get_property (SCM name_sym) const;
SCM properties_as_alist () const;
Context *where_defined (SCM name_sym, SCM *value) const;
+ bool here_defined (SCM name_sym, SCM *value) const;
void unset_property (SCM var_sym);
- void instrumented_set_property (SCM, SCM, const char*, int, const char*);
+ void instrumented_set_property (SCM, SCM, const char *, int, const char *);
void internal_set_property (SCM var_sym, SCM value);
- Context *create_context (Context_def *, string, SCM);
- DECLARE_LISTENER (create_context_from_event);
- DECLARE_LISTENER (acknowledge_infant);
- DECLARE_LISTENER (remove_context);
- DECLARE_LISTENER (change_parent);
+ Context *create_context (Context_def *, const std::string&, SCM);
+ void create_context_from_event (SCM);
+ void acknowledge_infant (SCM);
+ void remove_context (SCM);
+ void change_parent (SCM);
void disconnect_from_parent ();
void check_removal ();
- string context_name () const;
+ std::string context_name () const;
SCM context_name_symbol () const;
Global_context *get_global_context () const;
virtual Context *get_score_context () const;
virtual Output_def *get_output_def () const;
virtual Moment now_mom () const;
- virtual Context *get_default_interpreter ();
+ virtual Context *get_default_interpreter (const std::string &context_id = "");
bool is_alias (SCM) const;
void add_alias (SCM);
bool is_removable () const;
Context *find_create_context (SCM context_name,
- string id, SCM ops);
- Context *create_unique_context (SCM context_name, string context_id,
- SCM ops);
- vector<Context*> path_to_acceptable_context (SCM alias,
- Output_def *) const;
+ const std::string &id, SCM ops);
+ Context *create_unique_context (SCM context_name, const std::string &context_id,
+ SCM ops);
+ std::vector<Context_def *> path_to_acceptable_context (SCM alias) const;
};
/*
void apply_property_operations (Context *tg, SCM pre_init_ops);
void execute_pushpop_property (Context *trg, SCM prop, SCM eltprop, SCM val);
-void execute_general_pushpop_property (Context *context,
- SCM context_property, SCM grob_property_path, SCM val);
-SCM updated_grob_properties (Context *tg, SCM sym);
+
+// Search for a context of the given type starting from the given context and
+// moving toward the root of the tree. If the starting context matches, it is
+// returned.
+Context *find_context_above (Context *where, SCM type_sym);
+
+// Search for a context of the given type starting from the given context and
+// moving toward the root of the tree. If found, return its child that was
+// found on the way there.
+Context *find_context_above_by_parent_type (Context *where, SCM parent_type);
+
+// Search for a context of the given type and ID starting from the given
+// context and moving toward the leaves of the tree. If the starting context
+// matches, it is returned. An empty ID matches any context of the given type.
Context *find_context_below (Context *where,
- SCM type_sym, string id);
+ SCM type_sym, const std::string &id);
+
+// Search for a context of the given type and ID starting with the given
+// context, then searching its descendants, then its parent's descendants, etc.
+// An empty ID matches any context of the given type.
+Context *find_context_near (Context *where,
+ SCM type_sym, const std::string &id);
+
+// Search for the top context (i.e. the ancestor with no parent) starting with
+// the given context.
+Context *find_top_context (Context *where);
+
bool melisma_busy (Context *);
Context *get_voice_to_lyrics (Context *lyrics);
Grob *get_current_note_head (Context *voice);
Grob *get_current_rest (Context *voice);
-DECLARE_UNSMOB (Context, context);
Moment measure_position (Context const *context);
+Moment measure_position (Context const *context, Duration const *dur);
Rational measure_length (Context const *context);
+int measure_number (Context const *context);
+
+bool check_repeat_count_visibility (Context const *context, SCM count);
+
void set_context_property_on_children (Context *trans, SCM sym, SCM val);
/* Shorthand for creating and broadcasting stream events. */
-#define send_stream_event(ctx, type, origin, ...) \
-{ \
- SCM props[] = { __VA_ARGS__, 0 }; \
- ctx->internal_send_stream_event (ly_symbol2scm (type), origin, props); \
+#define send_stream_event(ctx, type, origin, ...) \
+{ \
+ SCM props[] = { __VA_ARGS__, 0 }; \
+ ctx->internal_send_stream_event (ly_symbol2scm (type), origin, props); \
}
SCM nested_property_alist (SCM alist, SCM prop_path, SCM value);
-SCM nested_property_revert_alist (SCM alist, SCM prop_path);
+SCM nested_create_alist (SCM prop_path, SCM value);
+SCM partial_list_copy (SCM alist, SCM tail, SCM newtail);
SCM evict_from_alist (SCM, SCM, SCM);
+SCM nalist_to_alist (SCM nalist, int nested);
#endif /* CONTEXT_HH */
-
projects / lilypond.git / blobdiff