source file of the GNU LilyPond music typesetter
- (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>,
+ Erik Sandberg <mandolaerik@gmail.com>
*/
#include "translator-group.hh"
-#include "output-def.hh"
-#include "warn.hh"
-#include "scm-hash.hh"
#include "context-def.hh"
#include "context.hh"
+#include "dispatcher.hh"
+#include "international.hh"
#include "main.hh"
#include "music.hh"
+#include "output-def.hh"
+#include "scm-hash.hh"
+#include "stream-event.hh"
+#include "warn.hh"
Translator_group *
Translator_group::get_daddy_translator () const
void
Translator_group::initialize ()
{
- SCM tab = scm_make_vector (scm_int2num (19), SCM_BOOL_F);
- context ()->set_property ("acceptHashTable", tab);
+ precompute_method_bindings ();
+}
+
+void
+Translator_group::connect_to_context (Context *c)
+{
+ if (context_)
+ programming_error ("already connected to a context");
+ context_ = c;
+ c->event_source ()->add_listener (GET_LISTENER (eat_event), ly_symbol2scm ("MusicEvent"));
+}
+
+void
+Translator_group::finalize ()
+{
}
bool
return l;
}
+IMPLEMENT_LISTENER (Translator_group, eat_event);
+void
+Translator_group::eat_event (SCM sev)
+{
+ Stream_event *ev = unsmob_stream_event (sev);
+ SCM sm = ev->get_property ("music");
+ Music *m = unsmob_music (sm);
+ try_music (m);
+}
+
bool
Translator_group::try_music (Music *m)
{
- SCM tab = get_property ("acceptHashTable");
SCM name = scm_sloppy_assq (ly_symbol2scm ("name"),
m->get_property_alist (false));
return false;
name = scm_cdr (name);
- SCM accept_list = scm_hashq_ref (tab, name, SCM_UNDEFINED);
+ SCM accept_list = scm_hashq_ref (accept_hash_table_, name, SCM_UNDEFINED);
if (accept_list == SCM_BOOL_F)
{
accept_list = find_accept_translators (get_simple_trans_list (),
m->get_property ("types"));
- scm_hashq_set_x (tab, name, accept_list);
+ scm_hashq_set_x (accept_hash_table_, name, accept_list);
}
for (SCM p = accept_list; scm_is_pair (p); p = scm_cdr (p))
if (t && t->try_music (m))
return true;
}
+
+ // We couldn't swallow the event in this context. Try parent.
+ Context *p = context ()->get_parent_context ();
+ // Global context's translator group is a dummy, so don't try it.
+ if (p->get_parent_context())
+ // ES todo: Make Translators listeners directly instead.
+ return p->implementation ()->try_music (m);
+ else
+ // We have tried all possible contexts. Give up.
+ m->origin ()->warning (_f ("junking event: `%s'", m->name ()));
return false;
}
}
void
-recurse_over_translators (Context *c, Translator_method ptr, Direction dir)
+precomputed_recurse_over_translators (Context *c, Translator_precompute_index idx, Direction dir)
{
Translator_group *tg
= dynamic_cast<Translator_group *> (c->implementation ());
- /*
- Top down:
- */
if (dir == DOWN)
{
- translator_each (tg->get_simple_trans_list (),
- ptr);
-
- (tg->*ptr) ();
+ tg->precomputed_translator_foreach (idx);
+ tg->call_precomputed_self_method (idx);
}
for (SCM s = c->children_contexts (); scm_is_pair (s);
s = scm_cdr (s))
+ precomputed_recurse_over_translators (unsmob_context (scm_car (s)), idx, dir);
+
+ if (dir == UP)
+ {
+ tg->precomputed_translator_foreach (idx);
+ tg->call_precomputed_self_method (idx);
+ }
+}
+
+void
+recurse_over_translators (Context *c, Translator_method ptr, Translator_group_method tg_ptr, Direction dir)
+{
+ Translator_group *tg
+ = dynamic_cast<Translator_group *> (c->implementation ());
+
+ if (dir == DOWN)
{
- recurse_over_translators (unsmob_context (scm_car (s)), ptr, dir);
+ (tg->*tg_ptr) ();
+ translator_each (tg->get_simple_trans_list (), ptr);
}
+ for (SCM s = c->children_contexts (); scm_is_pair (s);
+ s = scm_cdr (s))
+ recurse_over_translators (unsmob_context (scm_car (s)), ptr, tg_ptr, dir);
+
if (dir == UP)
{
translator_each (tg->get_simple_trans_list (),
ptr);
- (tg->*ptr) ();
+ (tg->*tg_ptr) ();
}
}
Translator_group::Translator_group ()
{
simple_trans_list_ = SCM_EOL;
+ accept_hash_table_ = SCM_EOL;
+ context_ = 0;
+ smobify_self ();
+
+ accept_hash_table_ = scm_c_make_hash_table (19);
}
void
Translator_group::derived_mark () const
{
- scm_gc_mark (simple_trans_list_);
+}
+
+void
+Translator_group::precompute_method_bindings ()
+{
+ for (SCM s = simple_trans_list_; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Translator *tr = unsmob_translator (scm_car (s));
+ Translator_void_method_ptr ptrs[TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
+ tr->fetch_precomputable_methods (ptrs);
+
+ assert (tr);
+ for (int i = 0; i < TRANSLATOR_METHOD_PRECOMPUTE_COUNT; i++)
+ {
+ if (ptrs[i])
+ precomputed_method_bindings_[i].push_back (Translator_method_binding (tr, ptrs[i]));
+ }
+ }
+
+ fetch_precomputable_methods (precomputed_self_method_bindings_);
+}
+
+void
+Translator_group::precomputed_translator_foreach (Translator_precompute_index idx)
+{
+ vector<Translator_method_binding> &bindings (precomputed_method_bindings_[idx]);
+ for (vsize i = 0; i < bindings.size (); i++)
+ bindings[i].invoke ();
+}
+
+void
+Translator_group::fetch_precomputable_methods (Translator_group_void_method ptrs[])
+{
+ for (int i = 0; i < TRANSLATOR_METHOD_PRECOMPUTE_COUNT; i++)
+ ptrs[i] = 0;
+}
+
+void
+Translator_group::call_precomputed_self_method (Translator_precompute_index idx)
+{
+ if (precomputed_self_method_bindings_[idx])
+ (*precomputed_self_method_bindings_[idx]) (this);
+}
+
+Translator_group::~Translator_group ()
+{
+}
+
+#include "ly-smobs.icc"
+
+IMPLEMENT_SMOBS (Translator_group);
+IMPLEMENT_DEFAULT_EQUAL_P (Translator_group);
+IMPLEMENT_TYPE_P (Translator_group, "ly:translator-group?");
+
+int
+Translator_group::print_smob (SCM s, SCM port, scm_print_state *)
+{
+ Translator_group *me = (Translator_group *) SCM_CELL_WORD_1 (s);
+ scm_puts ("#<Translator_group ", port);
+ scm_puts (me->class_name (), port);
+ scm_display (me->simple_trans_list_, port);
+ scm_puts (" >", port);
+ return 1;
+}
+
+SCM
+Translator_group::mark_smob (SCM smob)
+{
+ Translator_group *me = (Translator_group *)SCM_CELL_WORD_1 (smob);
+
+ me->derived_mark ();
+ scm_gc_mark (me->accept_hash_table_);
+ return me->simple_trans_list_;
}
projects / lilypond.git / blobdiff