/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 2004--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 2004--2015 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
#include "std-vector.hh"
#include "virtual-methods.hh"
-class Context
+class Context : public Smob<Context>
{
+public:
+ SCM mark_smob () const;
+ int print_smob (SCM, scm_print_state *) const;
+ static const char * const 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);
void terminate ();
// 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_; }
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 internal_set_property (SCM var_sym, SCM value);
Context *create_context (Context_def *, const string&, SCM);
- DECLARE_LISTENER (create_context_from_event);
- DECLARE_LISTENER (acknowledge_infant);
- DECLARE_LISTENER (remove_context);
- DECLARE_LISTENER (change_parent);
+ 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;
*/
void apply_property_operations (Context *tg, SCM pre_init_ops);
-void execute_revert_property (Context *context,
- SCM context_property,
- SCM grob_property_path);
void execute_pushpop_property (Context *trg, SCM prop, SCM eltprop, SCM val);
-void sloppy_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, const 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 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, bool include_grace_notes);
+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);
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, ...) \
+ do { \
+ SCM props[] = { __VA_ARGS__, 0 }; \
+ ctx->internal_send_stream_event (ly_symbol2scm (type), origin, props); \
+ } while (0)
SCM nested_property_alist (SCM alist, SCM prop_path, SCM value);
-SCM nested_property_revert_alist (SCM alist, SCM prop_path);
+SCM nested_property (SCM alist, SCM prop_path, SCM fallback = SCM_EOL);
+SCM nested_create_alist (SCM prop_path, SCM value);
+SCM partial_list_copy (SCM alist, SCM tail, SCM newtail);
+SCM assq_tail (SCM key, SCM alist, SCM alist_end);
+SCM assv_tail (SCM key, SCM alist, SCM alist_end);
+SCM assoc_tail (SCM key, SCM alist, SCM alist_end);
SCM evict_from_alist (SCM, SCM, SCM);
+SCM nalist_to_alist (SCM nalist, int nested);
+extern SCM ly_context_set_property_x_proc;
+extern SCM ly_context_unset_property_proc;
+extern SCM ly_context_matched_pop_property_proc;
#endif /* CONTEXT_HH */
projects / lilypond.git / blobdiff