/*
- engravergroup.cc -- implement Engraver_group_engraver
-
+ engraver-group-engraver.cc -- implement Engraver_group_engraver
+
source file of the GNU LilyPond music typesetter
- (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "flower-proto.hh"
#include "engraver-group-engraver.hh"
#include "engraver.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "paper-score.hh"
#include "grob.hh"
+#include "context.hh"
-ADD_THIS_TRANSLATOR (Engraver_group_engraver);
void
Engraver_group_engraver::announce_grob (Grob_info info)
{
- announce_info_arr_.push (info);
- Engraver::announce_grob (info);
+ announce_infos_.push (info);
+ get_daddy_engraver ()->announce_grob (info);
}
-void
-Engraver_group_engraver::create_grobs ()
-{
-
- for (SCM p = simple_trans_list_; gh_pair_p (p); p = gh_cdr (p))
- {
- Translator * t = unsmob_translator (gh_car (p));
- Engraver * eng = dynamic_cast<Engraver*> (t);
- if (eng)
- eng->create_grobs ();
- }
-}
+SCM find_acknowledge_engravers (SCM gravlist, SCM meta);
+SCM find_accept_engravers (SCM gravlist, SCM music_descr);
void
Engraver_group_engraver::acknowledge_grobs ()
{
- for (int j =0; j < announce_info_arr_.size (); j++)
+ if (!announce_infos_.size ())
+ return ;
+
+ SCM tab = get_property ("acknowledgeHashTable");
+ SCM name_sym = ly_symbol2scm ("name");
+ SCM meta_sym = ly_symbol2scm ("meta");
+
+
+ for (int j =0; j < announce_infos_.size (); j++)
{
- Grob_info info = announce_info_arr_[j];
- for (SCM p = simple_trans_list_; gh_pair_p (p); p = gh_cdr (p))
+ Grob_info info = announce_infos_[j];
+
+ SCM meta = info.grob_->internal_get_grob_property (meta_sym);
+ SCM nm = scm_assoc (name_sym, meta);
+ if (gh_pair_p (nm))
+ nm = ly_cdr (nm);
+ else
{
- Translator * t = unsmob_translator (gh_car (p));
+ /*
+ it's tempting to put an assert for
+ immutable_property_alist_ == '(), but in fact, some
+ engravers (clef-engraver) add some more information to the
+ immutable_property_alist_ (after it has been '()-ed).
+
+ We ignore the grob anyway. He who has no name, shall not
+ be helped. */
+
+ continue;
+ }
+
+ SCM acklist = scm_hashq_ref (tab, nm, SCM_UNDEFINED);
+ if (acklist == SCM_BOOL_F)
+ {
+ acklist = find_acknowledge_engravers (gh_cons (self_scm (), get_simple_trans_list ()), meta);
+ scm_hashq_set_x (tab, nm, acklist);
+ }
+
+ for (SCM p = acklist; gh_pair_p (p); p = ly_cdr (p))
+ {
+ Translator * t = unsmob_translator (ly_car (p));
Engraver * eng = dynamic_cast<Engraver*> (t);
- if (eng && eng!= info.origin_trans_l_)
+ if (eng && eng != info.origin_trans_)
eng->acknowledge_grob (info);
}
}
}
+
void
Engraver_group_engraver::do_announces ()
{
- for (SCM p = trans_group_list_; gh_pair_p (p); p =gh_cdr (p))
+ do
{
- Translator * t = unsmob_translator (gh_car (p));
- dynamic_cast<Engraver_group_engraver*> (t)->do_announces ();
+ engraver_each (get_simple_trans_list (),
+ &Engraver::process_acknowledged_grobs);
+
+ if (!announce_infos_.size())
+ break;
+
+ acknowledge_grobs ();
+ announce_infos_.clear ();
}
+ while (1);
+}
+
+
+
+void
+Engraver_group_engraver::initialize ()
+{
+ SCM tab = scm_make_vector (gh_int2scm (61), SCM_BOOL_F);
+ daddy_context_->set_property ("acknowledgeHashTable", tab);
+
+ Translator_group::initialize ();
+}
+
+Engraver_group_engraver::Engraver_group_engraver() {}
+
+ENTER_DESCRIPTION(Engraver_group_engraver,
+/* descr */ "A group of engravers taken together",
+/* creats*/ "",
+/* accepts */ "",
+/* acks */ "",
+/* reads */ "",
+/* write */ "");
+
- create_grobs ();
-
- while (announce_info_arr_.size ())
+
+/*****************/
+
+
+bool
+engraver_valid (Translator*tr, SCM ifaces)
+{
+ SCM ack_ifs = scm_assoc (ly_symbol2scm ("interfaces-acked"), tr->translator_description());
+ ack_ifs = gh_cdr (ack_ifs);
+ for (SCM s = ifaces; ly_pair_p (s); s = ly_cdr (s))
+ if (scm_memq (ly_car (s), ack_ifs) != SCM_BOOL_F)
+ return true;
+ return false;
+}
+
+
+
+SCM
+find_acknowledge_engravers (SCM gravlist, SCM meta_alist)
+{
+ SCM ifaces = gh_cdr (scm_assoc (ly_symbol2scm ("interfaces"), meta_alist));
+
+ SCM l = SCM_EOL;
+ for (SCM s = gravlist; ly_pair_p (s); s = ly_cdr (s))
{
- acknowledge_grobs ();
- announce_info_arr_.clear ();
- create_grobs ();
+ Translator* tr = unsmob_translator (ly_car (s));
+ if (engraver_valid (tr, ifaces))
+ l = scm_cons (tr->self_scm (), l);
}
+ l = scm_reverse_x (l, SCM_EOL);
+
+ return l;
}
-#include <iostream.h>
-/*
- order is : top to bottom (as opposed to do_announces)
- */
+/* c&p engraver-group.cc */
void
-Engraver_group_engraver::process_music ()
+recurse_down_engravers (Context * c, Engraver_method ptr, bool context_first)
{
- for (SCM p = simple_trans_list_; gh_pair_p (p); p =gh_cdr (p))
+ Engraver_group_engraver * tg
+ = dynamic_cast<Engraver_group_engraver*> (unsmob_translator (c->implementation_));
+
+
+ if (!context_first)
{
- Translator * t = unsmob_translator (gh_car (p));
- Engraver * eng = dynamic_cast<Engraver*> (t);
+ engraver_each (tg->get_simple_trans_list (),
+ ptr);
- if (eng)
- eng->process_music ();
+ (tg->*ptr) ();
}
- for (SCM p = trans_group_list_; gh_pair_p (p); p =gh_cdr (p))
+
+ for (SCM s = c->context_list_ ; gh_pair_p (s);
+ s =gh_cdr (s))
{
- Translator * t = unsmob_translator (gh_car (p));
- Engraver*eng = dynamic_cast<Engraver*> (t);
- if (eng)
- eng->process_music ();
+ recurse_down_engravers (unsmob_context (gh_car (s)), ptr, context_first);
}
-}
-
+ if (context_first)
+ {
+ engraver_each (tg->get_simple_trans_list (),
+ ptr);
+ (tg->*ptr) ();
+ }
+}
+void
+engraver_each (SCM list, Engraver_method method)
+{
+ for (SCM p = list; gh_pair_p (p); p = ly_cdr (p))
+ {
+ Engraver * e = dynamic_cast<Engraver*>(unsmob_translator (ly_car (p)));
+ if (e)
+ (e->*method) ();
+ }
+}
projects / lilypond.git / blobdiff