/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Copyright (C) 1997--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
{
}
-void
-Translator::init ()
-{
- daddy_context_ = 0;
- smobify_self ();
-}
-
void
Translator::process_music ()
{
{
}
-Translator::Translator ()
-{
- init ();
-}
-
-Translator::Translator (Translator const &)
- : Smob<Translator> ()
+Translator::Translator (Context *c)
+ : daddy_context_ (c)
{
- init ();
+ smobify_self ();
}
Moment
void
Translator::connect_to_context (Context *c)
{
- for (translator_listener_record *r = get_listener_list (); r; r = r->next_)
- c->events_below ()->add_listener (r->get_listener_ (this, r->event_class_),
- r->event_class_);
+ for (SCM r = get_listener_list (); scm_is_pair (r); r = scm_cdr (r))
+ {
+ SCM event_class = scm_caar (r);
+ SCM callback = scm_cdar (r);
+
+ c->events_below ()->add_listener (get_listener (callback),
+ event_class);
+ }
}
void
Translator::disconnect_from_context (Context *c)
{
- for (translator_listener_record *r = get_listener_list (); r; r = r->next_)
- c->events_below ()->remove_listener (r->get_listener_ (this, r->event_class_),
- r->event_class_);
-}
+ for (SCM r = get_listener_list (); scm_is_pair (r); r = scm_cdr (r))
+ {
+ SCM event_class = scm_caar (r);
+ SCM callback = scm_cdar (r);
-/*
- internally called once, statically, for each translator
- listener. Connects the name of an event class with a procedure that
- fetches the corresponding listener.
+ c->events_below ()->remove_listener (get_listener (callback),
+ event_class);
+ }
+}
- The method should only be called from the macro
- IMPLEMENT_TRANSLATOR_LISTENER.
- */
-void
-Translator::add_translator_listener (translator_listener_record **listener_list,
- translator_listener_record *r,
- Listener (*get_listener) (void *, SCM),
- const char *ev_class)
+SCM
+Translator::event_class_symbol (const char *ev_class)
{
/* ev_class is the C++ identifier name. Convert to scm symbol */
string name = string (ev_class);
name = replace_all (&name, '_', '-');
name += "-event";
- // we make the symbol permanent in order not to have to bother about
- // the static translator_listener_record chains while garbage
- // collecting.
-
- SCM class_sym = scm_permanent_object (scm_from_locale_symbol (name.c_str ()));
-
- r->event_class_ = class_sym;
- r->get_listener_ = get_listener;
- r->next_ = *listener_list;
- *listener_list = r;
+ return scm_from_ascii_symbol (name.c_str ());
}
/*
SCM
Translator::static_translator_description (const char *grobs,
const char *desc,
- translator_listener_record *listener_list,
+ SCM listener_list,
const char *read,
- const char *write) const
+ const char *write)
{
SCM static_properties = SCM_EOL;
parse_symbol_list (grobs), static_properties);
static_properties = scm_acons (ly_symbol2scm ("description"),
- scm_from_locale_string (desc), static_properties);
+ scm_from_utf8_string (desc), static_properties);
SCM list = SCM_EOL;
- for (; listener_list; listener_list = listener_list->next_)
- list = scm_cons (listener_list->event_class_, list);
+ for (; scm_is_pair (listener_list); listener_list = scm_cdr (listener_list))
+ list = scm_cons (scm_caar (listener_list), list);
static_properties = scm_acons (ly_symbol2scm ("events-accepted"),
list, static_properties);
SMOBS
*/
SCM
-Translator::mark_smob ()
+Translator::mark_smob () const
{
derived_mark ();
return SCM_EOL;
return daddy_context_->get_score_context ();
}
-const char Translator::type_p_name_[] = "ly:translator?";
+const char * const Translator::type_p_name_ = "ly:translator?";
bool
Translator::must_be_last () const
}
int
-Translator::print_smob (SCM port, scm_print_state *)
+Translator::print_smob (SCM port, scm_print_state *) const
{
scm_puts ("#<Translator ", port);
scm_puts (class_name (), port);
}
void
-add_acknowledger (Engraver_void_function_engraver_grob_info ptr,
+add_acknowledger (SCM ptr,
char const *func_name,
- vector<Acknowledge_information> *ack_array)
+ SCM &ack_hash)
{
- Acknowledge_information inf;
- inf.function_ = ptr;
+ if (SCM_UNBNDP (ack_hash))
+ ack_hash = Scheme_hash_table::make_smob ();
string interface_name (func_name);
interface_name = replace_all (&interface_name, '_', '-');
interface_name += "-interface";
- /*
- this is only called during program init, so safe to use scm_gc_protect_object ()
- */
- inf.symbol_ = scm_gc_protect_object (ly_symbol2scm (interface_name.c_str ()));
- ack_array->push_back (inf);
+ unsmob<Scheme_hash_table> (ack_hash)
+ ->set (ly_symbol2scm (interface_name.c_str ()), ptr);
}
-Engraver_void_function_engraver_grob_info
-generic_get_acknowledger (SCM sym, vector<Acknowledge_information> const *ack_array)
+SCM
+generic_get_acknowledger (SCM sym, SCM ack_hash)
{
- for (vsize i = 0; i < ack_array->size (); i++)
- {
- if (ack_array->at (i).symbol_ == sym)
- return ack_array->at (i).function_;
- }
- return 0;
+ if (SCM_UNBNDP (ack_hash))
+ return SCM_UNDEFINED;
+
+ return unsmob<Scheme_hash_table> (ack_hash)->get (sym);
}
Moment
get_event_length (Stream_event *e)
{
- Moment *m = Moment::unsmob (e->get_property ("length"));
+ Moment *m = unsmob<Moment> (e->get_property ("length"));
if (m)
return *m;
else
}
}
-ADD_TRANSLATOR (Translator,
- /* doc */
- "Base class. Not instantiated.",
-
- /* create */
- "",
-
- /* read */
- "",
-
- /* write */
- ""
- );
+// Base class. Not instantiated. No ADD_TRANSLATOR call.
projects / lilypond.git / blobdiff