source file of the GNU LilyPond music typesetter
- (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "music-output-def.hh"
#include "translator-group.hh"
#include "translator.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "moment.hh"
#include "scm-hash.hh"
-#include "translator-def.hh"
+#include "context-def.hh"
+#include "context.hh"
#include "main.hh"
+#include "music.hh"
-Translator_group::Translator_group (Translator_group const&s)
- : Translator (s)
-{
- iterator_count_ =0;
-
- Scheme_hash_table * tab = new Scheme_hash_table (*s.properties_dict ());
- properties_scm_ = tab->self_scm ();
- scm_gc_unprotect_object (tab->self_scm ());
-}
-
-Scheme_hash_table*
-Translator_group::properties_dict () const
-{
- return Scheme_hash_table::unsmob (properties_scm_);
-}
-
-Translator_group::~Translator_group ()
-{
-
- //assert (removable_b ());
-}
-
-
-Translator_group::Translator_group ()
-{
- iterator_count_ = 0;
- Scheme_hash_table *tab = new Scheme_hash_table ;
- properties_scm_ = tab->self_scm ();
-
- scm_gc_unprotect_object (tab->self_scm ());
-}
-
-void
-Translator_group::check_removal ()
-{
- SCM next = SCM_EOL;
- for (SCM p = trans_group_list_; gh_pair_p (p); p = next)
- {
- next = ly_cdr (p);
-
- Translator_group *trg = dynamic_cast<Translator_group*> (unsmob_translator (ly_car (p)));
-
- trg->check_removal ();
- if (trg->removable_b ())
- terminate_translator (trg);
- }
-}
-
-SCM
-Translator_group::add_translator (SCM list, Translator *t)
+Translator_group*
+Translator_group::get_daddy_translator () const
{
- /*
- Must append, since list ordering must be preserved.
- */
- list = gh_append2 (list, gh_cons (t->self_scm (), SCM_EOL));
- t->daddy_trans_l_ = this;
- t->output_def_l_ = output_def_l_;
-
- return list;
+ Translator *t
+ = unsmob_translator (get_parent_context ()->get_parent_context ()->implementation_);
+ return dynamic_cast<Translator_group*> (t);
}
void
-Translator_group::add_used_group_translator (Translator *t)
+translator_each (SCM list, Translator_method method)
{
- trans_group_list_ = add_translator (trans_group_list_,t);
+ for (SCM p = list; ly_c_pair_p (p); p = ly_cdr (p))
+ (unsmob_translator (ly_car (p))->*method) ();
}
void
-Translator_group::add_fresh_group_translator (Translator*t)
+Translator_group::initialize ()
{
- Translator_group*tg = dynamic_cast<Translator_group*> (t);
- assert (tg);
-
- trans_group_list_ = add_translator (trans_group_list_,t);
- unsmob_translator_def (tg->definition_)->apply_property_operations (tg);
- t->initialize ();
-
+ SCM tab = scm_make_vector (scm_int2num (19), SCM_BOOL_F);
+ get_parent_context ()->set_property ("acceptHashTable", tab);
}
bool
-Translator_group::removable_b () const
+translator_accepts_any_of (Translator*tr, SCM ifaces)
{
- return trans_group_list_ == SCM_EOL && ! iterator_count_;
+ SCM ack_ifs = scm_assoc (ly_symbol2scm ("events-accepted"),
+ tr->translator_description ());
+ ack_ifs = ly_cdr (ack_ifs);
+ for (SCM s = ifaces; ly_c_pair_p (s); s = ly_cdr (s))
+ if (scm_c_memq (ly_car (s), ack_ifs) != SCM_BOOL_F)
+ return true;
+ return false;
}
-Translator_group *
-Translator_group::find_existing_translator_l (String n, String id)
+SCM
+find_accept_translators (SCM gravlist, SCM ifaces)
{
- if (is_alias_b (n) && (id_str_ == id || id.empty_b ()))
- return this;
-
- Translator_group* r = 0;
- for (SCM p = trans_group_list_; !r && gh_pair_p (p); p = ly_cdr (p))
+ SCM l = SCM_EOL;
+ for (SCM s = gravlist; ly_c_pair_p (s); s = ly_cdr (s))
{
- Translator * t = unsmob_translator (ly_car (p));
-
- r = dynamic_cast<Translator_group*> (t)->find_existing_translator_l (n, id);
+ Translator* tr = unsmob_translator (ly_car (s));
+ if (translator_accepts_any_of (tr, ifaces))
+ l = scm_cons (tr->self_scm (), l);
}
+ l = scm_reverse_x (l, SCM_EOL);
- return r;
+ return l;
}
-
-
-
-Translator_group*
-Translator_group::find_create_translator_l (String n, String id)
+bool
+Translator_group::try_music (Music* m)
{
- Translator_group * existing = find_existing_translator_l (n,id);
- if (existing)
- return existing;
+ SCM tab = get_property ("acceptHashTable");
+ SCM name = scm_sloppy_assq (ly_symbol2scm ("name"),
+ m->get_property_alist (false));
- Link_array<Translator_def> path
- = unsmob_translator_def (definition_)->path_to_acceptable_translator (ly_str02scm ((char*)n.ch_C ()), output_def_l ());
+ if (!ly_c_pair_p (name))
+ return false;
- if (path.size ())
+ name = ly_cdr (name);
+ SCM accept_list = scm_hashq_ref (tab, name, SCM_UNDEFINED);
+ if (accept_list == SCM_BOOL_F)
{
- Translator_group * current = this;
-
- // start at 1. The first one (index 0) will be us.
- for (int i=0; i < path.size (); i++)
- {
- Translator_group * new_group = path[i]->instantiate (output_def_l_);
-
- if (i == path.size () -1)
- new_group->id_str_ = id;
- current->add_fresh_group_translator (new_group);
- current = new_group;
- }
-
- return current;
+ accept_list = find_accept_translators (get_simple_trans_list (),
+ m->get_property ("types"));
+ scm_hashq_set_x (tab, name, accept_list);
}
- Translator_group *ret = 0;
- if (daddy_trans_l_)
- ret = daddy_trans_l_->find_create_translator_l (n,id);
- else
- {
- warning (_f ("can't find or create `%s' called `%s'", n, id));
- ret =0;
- }
- return ret;
-}
-
-bool
-Translator_group::try_music_on_nongroup_children (Music *m)
-{
- bool hebbes_b =false;
-
- for (SCM p = simple_trans_list_; !hebbes_b && gh_pair_p (p); p = ly_cdr (p))
+ for (SCM p = accept_list; ly_c_pair_p (p); p = ly_cdr (p))
{
- hebbes_b = unsmob_translator (ly_car (p))->try_music (m);
+ Translator * t = unsmob_translator (ly_car (p));
+ if (t && t->try_music (m))
+ return true;
}
- return hebbes_b;
+ return false;
}
-bool
-Translator_group::try_music (Music* m)
-{
- bool hebbes_b = try_music_on_nongroup_children (m);
-
- if (!hebbes_b && daddy_trans_l_)
- hebbes_b = daddy_trans_l_->try_music (m);
- return hebbes_b ;
-}
-int
-Translator_group::depth_i () const
+SCM
+Translator_group::get_simple_trans_list ()
{
- return (daddy_trans_l_) ? daddy_trans_l_->depth_i () + 1 : 0;
+ return simple_trans_list_;
}
-Translator_group*
-Translator_group::ancestor_l (int level)
+void
+recurse_over_translators (Context * c, Translator_method ptr, Direction dir)
{
- if (!level || !daddy_trans_l_)
- return this;
+ Translator_group * tg
+ = dynamic_cast<Translator_group*> (unsmob_translator (c->implementation_));
- return daddy_trans_l_->ancestor_l (level-1);
-}
-void
-Translator_group::terminate_translator (Translator*r_l)
-{
- r_l->removal_processing ();
/*
- Return value ignored. GC does the rest.
+ Top down:
*/
- remove_translator_p (r_l);
-}
-
-
-/**
- Remove a translator from the hierarchy.
- */
-Translator *
-Translator_group::remove_translator_p (Translator*trans_l)
-{
- assert (trans_l);
-
- trans_group_list_ = scm_delq_x (trans_l->self_scm (), trans_group_list_);
- trans_l->daddy_trans_l_ = 0;
- return trans_l;
-}
-
-bool
-Translator_group::is_bottom_translator_b () const
-{
- return !gh_string_p (unsmob_translator_def (definition_)->default_child_context_name ());
-
-}
-
-Translator_group*
-Translator_group::get_default_interpreter ()
-{
- if (!is_bottom_translator_b ())
+ if (dir == DOWN)
{
- SCM nm = unsmob_translator_def (definition_)->default_child_context_name ();
- SCM st = output_def_l ()->find_translator_l (nm);
+ translator_each (tg->get_simple_trans_list (),
+ ptr);
- Translator_def *t = unsmob_translator_def (st);
- if (!t)
- {
- warning (_f ("can't find or create: `%s'", ly_scm2string (nm).ch_C ()));
- t = unsmob_translator_def (this->definition_);
- }
- Translator_group *tg = t->instantiate (output_def_l_);
- add_fresh_group_translator (tg);
-
- if (!tg->is_bottom_translator_b ())
- return tg->get_default_interpreter ();
- else
- return tg;
+ (tg->*ptr) ();
}
- return this;
-}
-static void
-static_each (SCM list, Method_pointer method)
-{
- for (SCM p = list; gh_pair_p (p); p = ly_cdr (p))
- (unsmob_translator (ly_car (p))->*method) ();
-
-}
-
-void
-Translator_group::each (Method_pointer method)
-{
- static_each (simple_trans_list_, method);
- static_each (trans_group_list_, method);
-}
-
-
-/*
- PROPERTIES
- */
-Translator_group*
-Translator_group::where_defined (SCM sym) const
-{
- if (properties_dict ()->elem_b (sym))
+ for (SCM s = c->children_contexts () ; ly_c_pair_p (s);
+ s =ly_cdr (s))
{
- return (Translator_group*)this;
+ recurse_over_translators (unsmob_context (ly_car (s)), ptr, dir);
}
- return (daddy_trans_l_) ? daddy_trans_l_->where_defined (sym) : 0;
-}
-
-/*
- return SCM_EOL when not found.
-*/
-SCM
-Translator_group::internal_get_property (SCM sym) const
-{
- SCM val =SCM_EOL;
- if (properties_dict ()->try_retrieve (sym, &val))
- return val;
-
- if (daddy_trans_l_)
- return daddy_trans_l_->internal_get_property (sym);
-
- return val;
-}
-
-void
-Translator_group::internal_set_property (SCM sym, SCM val)
-{
-#ifndef NDEBUG
- if (internal_type_checking_global_b)
- assert (type_check_assignment (sym, val, ly_symbol2scm ("translation-type?")));
-#endif
-
- properties_dict ()->set (sym, val);
-}
-
-/*
- TODO: look up to check whether we have inherited var?
- */
-void
-Translator_group::unset_property (SCM sym)
-{
- properties_dict ()->remove (sym);
-}
-
-
-/*
- Push or pop (depending on value of VAL) a single entry (ELTPROP . VAL)
- entry from a translator property list by name of PROP
-*/
-void
-Translator_group::execute_single_pushpop_property (SCM prop, SCM eltprop, SCM val)
-{
- if (gh_symbol_p (prop))
+ if (dir == UP)
{
- if (val != SCM_UNDEFINED)
- {
- SCM prev = internal_get_property (prop);
-
- if (gh_pair_p (prev) || prev == SCM_EOL)
- {
- bool ok = type_check_assignment (eltprop, val, ly_symbol2scm ("backend-type?"));
-
- if (ok)
- {
- prev = gh_cons (gh_cons (eltprop, val), prev);
- internal_set_property (prop, prev);
- }
- }
- else
- {
- // warning here.
- }
-
- }
- else
- {
- SCM prev = internal_get_property (prop);
+ translator_each (tg->get_simple_trans_list (),
+ ptr);
- SCM newprops= SCM_EOL ;
- while (gh_pair_p (prev) && ly_caar (prev) != eltprop)
- {
- newprops = gh_cons (ly_car (prev), newprops);
- prev = ly_cdr (prev);
- }
-
- if (gh_pair_p (prev))
- {
- newprops = scm_reverse_x (newprops, ly_cdr (prev));
- internal_set_property (prop, newprops);
- }
- }
+ (tg->*ptr) ();
}
}
-
-
-
-
-
-/*
- STUBS
-*/
-void
-Translator_group::stop_translation_timestep ()
-{
- each (&Translator::stop_translation_timestep);
-}
-
-void
-Translator_group::start_translation_timestep ()
-{
- each (&Translator::start_translation_timestep);
-}
-
-void
-Translator_group::do_announces ()
-{
- each (&Translator::announces);
-}
-
-void
-Translator_group::initialize ()
-{
- each (&Translator::initialize);
-}
-
-void
-Translator_group::finalize ()
-{
- each (&Translator::removal_processing);
-}
-
-LY_DEFINE(ly_get_context_property,
- "ly-get-context-property", 2, 0, 0,
- (SCM context, SCM name),
- "retrieve the value of @var{sym} from context @var{tr}")
-{
- Translator *t = unsmob_translator (context);
- Translator_group* tr= dynamic_cast<Translator_group*> (t);
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Translator group");
- SCM_ASSERT_TYPE(gh_symbol_p(name), name, SCM_ARG2, __FUNCTION__, "symbol");
-
- return tr->internal_get_property (name);
-
-}
-
-LY_DEFINE(ly_set_context_property,
- "ly-set-context-property", 3, 0, 0,
- (SCM context, SCM name, SCM val),
- "set value of property @var{sym} in context @var{tr} to @var{val}.
-")
-{
- Translator *t = unsmob_translator (context);
- Translator_group* tr= dynamic_cast<Translator_group*> (t);
-
- SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Context");
- tr->internal_set_property (name, val);
-
- return SCM_UNSPECIFIED;
-}
projects / lilypond.git / blobdiff