#include "context-def.hh"
#include "dispatcher.hh"
-#include "global-context.hh"
#include "international.hh"
#include "ly-smobs.icc"
#include "main.hh"
#include "profile.hh"
#include "program-option.hh"
#include "scm-hash.hh"
+#include "score-context.hh"
#include "translator-group.hh"
#include "warn.hh"
{
for (SCM p = context_list_; scm_is_pair (p); p = scm_cdr (p))
{
- Context *ctx = unsmob_context (scm_car (p));
+ Context *trg = unsmob_context (scm_car (p));
- ctx->check_removal ();
- if (ctx->is_removable ())
+ trg->check_removal ();
+ if (trg->is_removable ())
{
- recurse_over_translators (ctx, &Translator::finalize,
+ recurse_over_translators (trg, &Translator::finalize,
&Translator_group::finalize,
UP);
- send_stream_event (ctx, "RemoveContext", 0, 0);
+ remove_context (trg);
}
}
}
}
void
-Context::add_context (Context *child)
+Context::add_context (Context *t)
{
+ SCM ts = t->self_scm ();
context_list_ = ly_append2 (context_list_,
- scm_cons (child->self_scm (), SCM_EOL));
+ scm_cons (ts, SCM_EOL));
+
+ t->daddy_context_ = this;
+ if (!t->init_)
+ {
+ t->init_ = true;
- child->daddy_context_ = this;
- this->events_below_->register_as_listener (child->events_below_);
+ t->unprotect ();
+ Context_def *td = unsmob_context_def (t->definition_);
+
+ /* This cannot move before add_context (), because \override
+ operations require that we are in the hierarchy. */
+ td->apply_default_property_operations (t);
+
+ recurse_over_translators (t,
+ &Translator::initialize,
+ &Translator_group::initialize,
+ DOWN);
+ }
}
: key_manager_ (key)
{
daddy_context_ = 0;
+ init_ = false;
aliases_ = SCM_EOL;
iterator_count_ = 0;
implementation_ = 0;
context_list_ = SCM_EOL;
definition_ = SCM_EOL;
definition_mods_ = SCM_EOL;
+ unique_ = -1;
event_source_ = 0;
events_below_ = 0;
}
/*
- Don't go up to Global_context, because global goes down to the
- Score context
+ Don't go up to Global_context, because global goes down to
+ Score_context
*/
Context *ret = 0;
if (daddy_context_ && !dynamic_cast<Global_context *> (daddy_context_))
}
/*
- Don't go up to Global_context, because global goes down to the
- Score context
+ Don't go up to Global_context, because global goes down to
+ Score_context
*/
Context *ret = 0;
if (daddy_context_ && !dynamic_cast<Global_context *> (daddy_context_))
return ret;
}
-IMPLEMENT_LISTENER (Context, acknowledge_infant);
-void
-Context::acknowledge_infant (SCM sev)
-{
- infant_event_ = unsmob_stream_event (sev);
-}
-
-IMPLEMENT_LISTENER (Context, set_property_from_event);
-void
-Context::set_property_from_event (SCM sev)
+Context *
+Context::create_context (Context_def *cdef,
+ string id,
+ SCM ops)
{
- Stream_event *ev = unsmob_stream_event (sev);
-
- SCM sym = ev->get_property ("symbol");
- if (scm_is_symbol (sym))
- {
- SCM val = ev->get_property ("value");
- bool ok = true;
- if (val != SCM_EOL)
- ok = type_check_assignment (sym, val, ly_symbol2scm ("translation-type?"));
- if (ok)
- set_property (sym, val);
- }
-}
+ int unique = get_global_context()->new_unique();
-IMPLEMENT_LISTENER (Context, unset_property_from_event);
-void
-Context::unset_property_from_event (SCM sev)
-{
- Stream_event *ev = unsmob_stream_event (sev);
-
- SCM sym = ev->get_property ("symbol");
- type_check_assignment (sym, SCM_EOL, ly_symbol2scm ("translation-type?"));
- unset_property (sym);
-}
-
-/*
- Creates a new context from a CreateContext event, and sends an
- AnnounceNewContext event to this context.
-*/
-IMPLEMENT_LISTENER (Context, create_context_from_event);
-void
-Context::create_context_from_event (SCM sev)
-{
- Stream_event *ev = unsmob_stream_event (sev);
-
- string id = ly_scm2string (ev->get_property ("id"));
- SCM ops = ev->get_property ("ops");
- SCM type_scm = ev->get_property ("type");
- string type = ly_symbol2string (type_scm);
+ // TODO: The following should be carried out by a listener.
+ string type = ly_symbol2string (cdef->get_context_name ());
Object_key const *key = key_manager_.get_context_key (now_mom(), type, id);
-
- vector<Context_def*> path
- = unsmob_context_def (definition_)->path_to_acceptable_context (type_scm, get_output_def ());
- if (path.size () != 1)
- {
- programming_error (_f ("Invalid CreateContext event: Cannot create %s context", type.c_str ()));
- return;
- }
- Context_def *cdef = path[0];
-
- Context *new_context = cdef->instantiate (ops, key);
+ Context *new_context
+ = cdef->instantiate (ops, key);
new_context->id_string_ = id;
+ new_context->unique_ = unique;
- /* Register various listeners:
- - Make the new context hear events that universally affect contexts
- - connect events_below etc. properly */
- /* We want to be the first ones to hear our own events. Therefore, wait
- before registering events_below_ */
- new_context->event_source ()->
- add_listener (GET_LISTENER (new_context->create_context_from_event),
- ly_symbol2scm ("CreateContext"));
- new_context->event_source ()->
- add_listener (GET_LISTENER (new_context->remove_context),
- ly_symbol2scm ("RemoveContext"));
- new_context->event_source ()->
- add_listener (GET_LISTENER (new_context->change_parent),
- ly_symbol2scm ("ChangeParent"));
- new_context->event_source ()->
- add_listener (GET_LISTENER (new_context->set_property_from_event),
- ly_symbol2scm ("SetProperty"));
- new_context->event_source ()->
- add_listener (GET_LISTENER (new_context->unset_property_from_event),
- ly_symbol2scm ("UnsetProperty"));
-
new_context->events_below_->register_as_listener (new_context->event_source_);
- this->add_context (new_context);
-
- new_context->unprotect ();
-
- Context_def *td = unsmob_context_def (new_context->definition_);
-
- /* This cannot move before add_context (), because \override
- operations require that we are in the hierarchy. */
- td->apply_default_property_operations (new_context);
+
+ add_context (new_context);
apply_property_operations (new_context, ops);
+ events_below_->register_as_listener (new_context->events_below_);
- send_stream_event (this, "AnnounceNewContext", 0,
- ly_symbol2scm ("context"), new_context->self_scm (),
- ly_symbol2scm ("creator"), sev);
-}
-
-Context *
-Context::create_context (Context_def *cdef,
- string id,
- SCM ops)
-{
- infant_event_ = 0;
- /* TODO: This is fairly misplaced. We can fix this when we have taken out all
- iterator specific stuff from the Context class */
- event_source_->
- add_listener (GET_LISTENER (acknowledge_infant),
- ly_symbol2scm ("AnnounceNewContext"));
- /* The CreateContext creates a new context, and sends an announcement of the
- new context through another event. That event will be stored in
- infant_event_ to create a return value. */
- send_stream_event (this, "CreateContext", 0,
+ // TODO: The above operations should be performed by a listener to the following event.
+ send_stream_event (this, "CreateContext",
+ ly_symbol2scm ("unique"), scm_int2num (unique),
ly_symbol2scm ("ops"), ops,
ly_symbol2scm ("type"), cdef->get_context_name (),
ly_symbol2scm ("id"), scm_makfrom0str (id.c_str ()));
- event_source_->
- remove_listener (GET_LISTENER (acknowledge_infant),
- ly_symbol2scm ("AnnounceNewContext"));
-
- assert (infant_event_);
- SCM infant_scm = infant_event_->get_property ("context");
- Context *infant = unsmob_context (infant_scm);
-
- if (!infant || infant->get_parent_context () != this)
- {
- programming_error ("create_context: can't locate newly created context");
- return 0;
- }
- return infant;
+ return new_context;
}
/*
be called from any other place than the send_stream_event macro.
*/
void
-Context::internal_send_stream_event (SCM type, Input *origin, SCM props[])
+Context::internal_send_stream_event (SCM type, SCM props[])
{
- Stream_event *e = new Stream_event (type, origin);
+ Stream_event *e = new Stream_event (this, type);
for (int i = 0; props[i]; i += 2)
{
- e->set_property (props[i], props[i+1]);
+ e->internal_set_property (props[i], props[i+1]);
}
event_source_->broadcast (e);
e->unprotect ();
}
void
-Context::internal_set_property (SCM sym, SCM val
-#ifndef NDEBUG
- , char const *file, int line, char const *fun
-#endif
- )
+Context::internal_set_property (SCM sym, SCM val)
{
+#ifndef NDEBUG
if (do_internal_type_checking_global)
assert (type_check_assignment (sym, val, ly_symbol2scm ("translation-type?")));
+#endif
properties_dict ()->set (sym, val);
}
properties_dict ()->remove (sym);
}
-IMPLEMENT_LISTENER (Context, change_parent);
-void
-Context::change_parent (SCM sev)
+/**
+ Remove a context from the hierarchy.
+*/
+Context *
+Context::remove_context (Context *trans)
{
- Stream_event *ev = unsmob_stream_event (sev);
- Context *to = unsmob_context (ev->get_property ("context"));
+ assert (trans);
- disconnect_from_parent ();
- to->add_context (this);
+ context_list_ = scm_delq_x (trans->self_scm (), context_list_);
+ trans->daddy_context_ = 0;
+ return trans;
}
-/*
- Die. The next GC sweep should take care of the actual death.
- */
-IMPLEMENT_LISTENER (Context, remove_context);
-void
-Context::remove_context (SCM)
-{
- /* ugh, the translator group should listen to RemoveContext events by itself */
- implementation ()->disconnect_from_context ();
- disconnect_from_parent ();
-}
-
-void
-Context::disconnect_from_parent ()
-{
- daddy_context_->events_below_->unregister_as_listener (this->events_below_);
- daddy_context_->context_list_ = scm_delq_x (this->self_scm (), daddy_context_->context_list_);
- daddy_context_ = 0;
-}
/*
ID == "" means accept any ID.
return found;
}
+Context *
+find_context_below (Context *where,
+ int unique)
+{
+ if (where->get_unique () == unique)
+ return where;
+
+ Context *found = 0;
+ for (SCM s = where->children_contexts ();
+ !found && scm_is_pair (s); s = scm_cdr (s))
+ {
+ Context *tr = unsmob_context (scm_car (s));
+
+ found = find_context_below (tr, unique);
+ }
+
+ return found;
+}
+
SCM
Context::properties_as_alist () const
{
return ly_symbol2string (context_name_symbol ());
}
-Context *
+Score_context *
Context::get_score_context () const
{
- if (daddy_context_)
+ if (Score_context *sc = dynamic_cast<Score_context *> ((Context *) this))
+ return sc;
+ else if (daddy_context_)
return daddy_context_->get_score_context ();
else
return 0;
IMPLEMENT_DEFAULT_EQUAL_P (Context);
IMPLEMENT_TYPE_P (Context, "ly:context?");
+bool
+Context::try_music (Music *m)
+{
+ Translator_group *t = implementation ();
+ if (!t)
+ return false;
+
+ bool b = t->try_music (m);
+ if (!b && daddy_context_)
+ b = daddy_context_->try_music (m);
+
+ return b;
+}
+
Global_context *
Context::get_global_context () const
{
void
set_context_property_on_children (Context *trans, SCM sym, SCM val)
{
- trans->set_property (sym, ly_deep_copy (val));
+ trans->internal_set_property (sym, ly_deep_copy (val));
for (SCM p = trans->children_contexts (); scm_is_pair (p); p = scm_cdr (p))
{
Context *trg = unsmob_context (scm_car (p));
projects / lilypond.git / blobdiff