/*
- engraver-group.cc -- implement Engraver_group
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2007 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "context.hh"
#include "dispatcher.hh"
#include "engraver-group.hh"
+#include "global-context.hh"
#include "grob.hh"
+#include "grob-properties.hh"
#include "paper-score.hh"
#include "translator-dispatch-list.hh"
#include "warn.hh"
-IMPLEMENT_LISTENER (Engraver_group, override);
void
Engraver_group::override (SCM sev)
{
- Stream_event *ev = unsmob_stream_event (sev);
-
- execute_general_pushpop_property (context (),
- ev->get_property ("symbol"),
- ev->get_property ("property-path"),
- ev->get_property ("value"));
+ Stream_event *ev = unsmob<Stream_event> (sev);
+ SCM sym = ev->get_property ("symbol");
+ Grob_property_info gpi (context (), sym);
+
+ if (to_boolean (ev->get_property ("once")))
+ {
+ SCM token = gpi.temporary_override (ev->get_property ("property-path"),
+ ev->get_property ("value"));
+ if (scm_is_pair (token))
+ if (Global_context *g = context ()->get_global_context ())
+ {
+ g->add_finalization (scm_list_4 (ly_context_matched_pop_property_proc,
+ context ()->self_scm (),
+ sym,
+ token));
+ }
+ }
+ else
+ gpi.push (ev->get_property ("property-path"),
+ ev->get_property ("value"));
}
-IMPLEMENT_LISTENER (Engraver_group, revert);
void
Engraver_group::revert (SCM sev)
{
- Stream_event *ev = unsmob_stream_event (sev);
-
- execute_general_pushpop_property (context (),
- ev->get_property ("symbol"),
- ev->get_property ("property-path"),
- SCM_UNDEFINED);
+ Stream_event *ev = unsmob<Stream_event> (sev);
+ SCM sym = ev->get_property ("symbol");
+ Grob_property_info gpi (context (), sym);
+
+ if (to_boolean (ev->get_property ("once")))
+ {
+ SCM token = gpi.temporary_revert (ev->get_property ("property-path"));
+ if (scm_is_pair (token))
+ if (Global_context *g = context ()->get_global_context ())
+ {
+ g->add_finalization (scm_list_4 (ly_context_matched_pop_property_proc,
+ context ()->self_scm (),
+ sym,
+ token));
+ }
+ }
+ else
+ gpi.pop (ev->get_property ("property-path"));
}
void
Engraver_group::connect_to_context (Context *c)
{
Translator_group::connect_to_context (c);
- c->event_source ()->add_listener (GET_LISTENER (override), ly_symbol2scm ("Override"));
- c->event_source ()->add_listener (GET_LISTENER (revert), ly_symbol2scm ("Revert"));
+ c->event_source ()->add_listener (GET_LISTENER (Engraver_group, override), ly_symbol2scm ("Override"));
+ c->event_source ()->add_listener (GET_LISTENER (Engraver_group, revert), ly_symbol2scm ("Revert"));
}
void
Engraver_group::disconnect_from_context ()
{
- context ()->event_source ()->remove_listener (GET_LISTENER (override), ly_symbol2scm ("Override"));
- context ()->event_source ()->remove_listener (GET_LISTENER (revert), ly_symbol2scm ("Revert"));
+ context ()->event_source ()->remove_listener (GET_LISTENER (Engraver_group, override), ly_symbol2scm ("Override"));
+ context ()->event_source ()->remove_listener (GET_LISTENER (Engraver_group, revert), ly_symbol2scm ("Revert"));
Translator_group::disconnect_from_context ();
}
void
-Engraver_group::announce_grob (Grob_info info)
+Engraver_group::announce_grob (Grob_info info, Direction dir,
+ Context *reroute_context)
{
- announce_infos_.push_back (info);
+ announce_infos_.push_back (Announce_grob_info (info, dir));
+
+ Context *dad_con = reroute_context ? reroute_context
+ : context_->get_parent_context ();
Engraver_group *dad_eng
- = context_->get_parent_context ()
- ? dynamic_cast<Engraver_group *> (context_->get_parent_context ()->implementation ())
- : 0;
+ = dad_con
+ ? dynamic_cast<Engraver_group *> (dad_con->implementation ())
+ : 0;
if (dad_eng)
- dad_eng->announce_grob (info);
+ dad_eng->announce_grob (info, dir);
}
void
return;
SCM name_sym = ly_symbol2scm ("name");
- SCM meta_sym = ly_symbol2scm ("meta");
for (vsize j = 0; j < announce_infos_.size (); j++)
{
- Grob_info info = announce_infos_[j];
-
- SCM meta = info.grob ()->internal_get_property (meta_sym);
+ Announce_grob_info info = announce_infos_[j];
+
+ SCM meta = info.grob ()->get_property ("meta");
SCM nm = scm_assoc (name_sym, meta);
if (scm_is_pair (nm))
- nm = scm_cdr (nm);
+ nm = scm_cdr (nm);
else
- continue;
+ continue;
- SCM acklist = scm_hashq_ref (acknowledge_hash_table_drul_[info.start_end()],
- nm, SCM_BOOL_F);
-
- Engraver_dispatch_list *dispatch
- = Engraver_dispatch_list::unsmob (acklist);
+ SCM ackhandle = scm_hashq_create_handle_x (acknowledge_hash_table_drul_[info.start_end ()],
+ nm, SCM_BOOL_F);
+
+ SCM acklist = scm_cdr (ackhandle);
- if (acklist == SCM_BOOL_F)
- {
- SCM ifaces
- = scm_cdr (scm_assoc (ly_symbol2scm ("interfaces"), meta));
- acklist = Engraver_dispatch_list::create (get_simple_trans_list (),
- ifaces, info.start_end ());
+ if (scm_is_false (acklist))
+ {
+ SCM ifaces
+ = scm_cdr (scm_assoc (ly_symbol2scm ("interfaces"), meta));
+ acklist = Engraver_dispatch_list::create (get_simple_trans_list (),
+ ifaces, info.start_end ());
- dispatch
- = Engraver_dispatch_list::unsmob (acklist);
+ scm_set_cdr_x (ackhandle, acklist);
+ }
- scm_hashq_set_x (acknowledge_hash_table_drul_[info.start_end ()], nm, acklist);
- }
+ Engraver_dispatch_list *dispatch
+ = unsmob<Engraver_dispatch_list> (acklist);
if (dispatch)
- dispatch->apply (info);
+ dispatch->apply (info);
}
}
Ugh. This is slightly expensive. We could/should cache the value of
the group count?
*/
-int
-Engraver_group::pending_grob_count () const
+bool
+Engraver_group::pending_grobs () const
{
- int count = announce_infos_.size ();
+ if (!announce_infos_.empty ())
+ return true;
for (SCM s = context_->children_contexts ();
scm_is_pair (s); s = scm_cdr (s))
{
- Context *c = unsmob_context (scm_car (s));
+ Context *c = unsmob<Context> (scm_car (s));
Engraver_group *group
- = dynamic_cast<Engraver_group *> (c->implementation ());
+ = dynamic_cast<Engraver_group *> (c->implementation ());
- if (group)
- count += group->pending_grob_count ();
+ if (group && group->pending_grobs ())
+ return true;
}
- return count;
+ return false;
}
void
do
{
/*
- DOCME: why is this inside the loop?
+ DOCME: why is this inside the loop?
*/
for (SCM s = context ()->children_contexts ();
- scm_is_pair (s); s = scm_cdr (s))
- {
- Context *c = unsmob_context (scm_car (s));
- Engraver_group *group
- = dynamic_cast<Engraver_group *> (c->implementation ());
- if (group)
- group->do_announces ();
- }
-
-
+ scm_is_pair (s); s = scm_cdr (s))
+ {
+ Context *c = unsmob<Context> (scm_car (s));
+ Engraver_group *group
+ = dynamic_cast<Engraver_group *> (c->implementation ());
+ if (group)
+ group->do_announces ();
+ }
+
while (1)
- {
- precomputed_translator_foreach (PROCESS_ACKNOWLEDGED);
- if (announce_infos_.size () == 0)
- break;
-
- acknowledge_grobs ();
- announce_infos_.clear ();
- }
+ {
+ precomputed_translator_foreach (PROCESS_ACKNOWLEDGED);
+ if (announce_infos_.size () == 0)
+ break;
+
+ acknowledge_grobs ();
+ announce_infos_.clear ();
+ }
}
- while (pending_grob_count () > 0);
+ while (pending_grobs ());
+}
+
+Preinit_Engraver_group::Preinit_Engraver_group ()
+{
+ acknowledge_hash_table_drul_.set (SCM_EOL, SCM_EOL);
}
Engraver_group::Engraver_group ()
{
- acknowledge_hash_table_drul_[LEFT]
- = acknowledge_hash_table_drul_[RIGHT]
- = SCM_EOL;
-
acknowledge_hash_table_drul_[LEFT] = scm_c_make_hash_table (61);
acknowledge_hash_table_drul_[RIGHT] = scm_c_make_hash_table (61);
}
#include "translator.icc"
ADD_TRANSLATOR_GROUP (Engraver_group,
- /* doc */ "A group of engravers taken together",
- /* create */ "",
- /* read */ "",
- /* write */ "");
+ /* doc */
+ "A group of engravers taken together.",
+
+ /* create */
+ "",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );
void
Engraver_group::derived_mark () const
projects / lilypond.git / blobdiff