-/*
+/*
scheme-engraver.cc -- implement Scheme_engraver
-
+
source file of the GNU LilyPond music typesetter
-
- Copyright (c) 2009--2010 Han-Wen Nienhuys <hanwen@lilypond.org>
+
+ Copyright (c) 2009--2015 Han-Wen Nienhuys <hanwen@lilypond.org>
LilyPond is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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/>.
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
#include "scheme-engraver.hh"
Scheme_engraver::init_from_scheme (SCM definition)
{
start_translation_timestep_function_ = callable (ly_symbol2scm ("start-translation-timestep"),
- definition);
+ definition);
stop_translation_timestep_function_ = callable (ly_symbol2scm ("stop-translation-timestep"),
- definition);
+ definition);
process_music_function_ = callable (ly_symbol2scm ("process-music"), definition);
process_acknowledged_function_ = callable (ly_symbol2scm ("process-acknowledged"),
- definition);
+ definition);
initialize_function_ = callable (ly_symbol2scm ("initialize"), definition);
finalize_function_ = callable (ly_symbol2scm ("finalize"), definition);
listeners_alist_ = SCM_EOL;
must_be_last_ = to_boolean (ly_assoc_get (ly_symbol2scm ("must-be-last"),
- definition,
- SCM_BOOL_F));
-
+ definition,
+ SCM_BOOL_F));
+
translator_listener_record **tail = &per_instance_listeners_;
for (SCM p = listeners; scm_is_pair (p); p = scm_cdr (p))
{
SCM proc = scm_cdar (p);
if (!(ly_is_procedure (proc) && ly_is_symbol (event_class)))
- continue;
+ continue;
// We should check the arity of the function?
-
+
// Record for later lookup.
listeners_alist_ = scm_acons (event_class, proc, listeners_alist_);
tail = &rec->next_;
}
- init_acknowledgers (ly_assoc_get(ly_symbol2scm ("acknowledgers"),
- definition, SCM_EOL),
- &interface_acknowledger_hash_);
-
- init_acknowledgers (ly_assoc_get(ly_symbol2scm ("end-acknowledgers"),
- definition, SCM_EOL),
- &interface_end_acknowledger_hash_);
+ init_acknowledgers (ly_assoc_get (ly_symbol2scm ("acknowledgers"),
+ definition, SCM_EOL),
+ &interface_acknowledger_hash_);
+
+ init_acknowledgers (ly_assoc_get (ly_symbol2scm ("end-acknowledgers"),
+ definition, SCM_EOL),
+ &interface_end_acknowledger_hash_);
// TODO: hook up description, props read/written, grobs created
// etc. to provide automatic documentation.
void
Scheme_engraver::init_acknowledgers (SCM alist,
- SCM *hash)
-{
- *hash = scm_c_make_hash_table(7);
+ SCM *hash)
+{
+ *hash = scm_c_make_hash_table (7);
for (SCM p = alist; scm_is_pair (p); p = scm_cdr (p))
{
SCM iface = scm_caar (p);
SCM proc = scm_cdar (p);
if (!(ly_is_procedure (proc) && ly_is_symbol (iface)))
- continue;
+ continue;
scm_hashq_set_x (*hash, iface, proc);
}
// This is the easy way to do it, at the cost of too many invocations
// of Scheme_engraver::acknowledge_grob. The clever dispatching of
// acknowledgers is hardwired to have 1 method per engraver per
-// grob-type, which doesn't work for this case.
+// grob-type, which doesn't work for this case.
void
Scheme_engraver::acknowledge_grob (Grob_info info)
{
void
Scheme_engraver::acknowledge_grob_by_hash (Grob_info info,
- SCM iface_function_hash)
+ SCM iface_function_hash)
{
- SCM meta = info.grob ()->internal_get_property (ly_symbol2scm ("meta"));
+ SCM meta = info.grob ()->get_property ("meta");
SCM ifaces = scm_cdr (scm_assoc (ly_symbol2scm ("interfaces"), meta));
for (SCM s = ifaces; scm_is_pair (s); s = scm_cdr (s))
{
SCM func = scm_hashq_ref (iface_function_hash,
- scm_car (s), SCM_BOOL_F);
+ scm_car (s), SCM_BOOL_F);
if (ly_is_procedure (func))
- scm_call_3 (func, self_scm (), info.grob ()->self_scm (),
- info.origin_translator ()->self_scm ());
+ scm_call_3 (func, self_scm (), info.grob ()->self_scm (),
+ info.origin_translator ()->self_scm ());
}
}
scm_gc_mark ((SCM)target);
}
-Listener_function_table listen_closure = {
- call_listen_closure, mark_listen_closure
+static
+bool equal_listen_closure (void *a, void *b)
+{
+ SCM target_a = (SCM) a;
+ SCM target_b = (SCM) b;
+
+ return ly_is_equal (target_a, target_b);
+}
+
+Listener_function_table listen_closure
+=
+{
+ call_listen_closure, mark_listen_closure, equal_listen_closure
};
/* static */
Listener
Scheme_engraver::get_listener (void *arg, SCM name)
{
- Scheme_engraver *me = (Scheme_engraver*) arg;
+ Scheme_engraver *me = (Scheme_engraver *) arg;
SCM func = ly_assoc_get (name, me->listeners_alist_, SCM_BOOL_F);
assert (ly_is_procedure (func));
- SCM closure = scm_cons (func, me->self_scm());
- return Listener((void*)closure, &listen_closure);
+ SCM closure = scm_cons (func, me->self_scm ());
+ return Listener ((void *)closure, &listen_closure);
}
translator_listener_record *
-Scheme_engraver::get_listener_list () const
-{
+Scheme_engraver::get_listener_list () const
+{
return per_instance_listeners_;
}
-#define DISPATCH(what) \
- void \
- Scheme_engraver::what () \
- { \
- if (what ## _function_ != SCM_BOOL_F) \
- scm_call_1 (what ## _function_, self_scm ()); \
+#define DISPATCH(what) \
+ void \
+ Scheme_engraver::what () \
+ { \
+ if (what ## _function_ != SCM_BOOL_F) \
+ scm_call_1 (what ## _function_, self_scm ()); \
}
-DISPATCH(start_translation_timestep);
-DISPATCH(stop_translation_timestep);
-DISPATCH(initialize);
-DISPATCH(finalize);
-DISPATCH(process_music);
-DISPATCH(process_acknowledged);
+DISPATCH (start_translation_timestep);
+DISPATCH (stop_translation_timestep);
+DISPATCH (initialize);
+DISPATCH (finalize);
+DISPATCH (process_music);
+DISPATCH (process_acknowledged);
void
Scheme_engraver::derived_mark () const
scm_gc_mark (finalize_function_);
scm_gc_mark (process_music_function_);
scm_gc_mark (process_acknowledged_function_);
- scm_gc_mark (listeners_alist_);
- scm_gc_mark (interface_acknowledger_hash_);
- scm_gc_mark (interface_end_acknowledger_hash_);
-}
+ scm_gc_mark (listeners_alist_);
+ scm_gc_mark (interface_acknowledger_hash_);
+ scm_gc_mark (interface_end_acknowledger_hash_);
+}
ADD_ACKNOWLEDGER (Scheme_engraver, grob);
ADD_END_ACKNOWLEDGER (Scheme_engraver, grob);
ADD_TRANSLATOR (Scheme_engraver,
- /* doc */
- "Implement engravers in Scheme. Interprets arguments to @code{\\consists} "
- "as callbacks. ",
+ /* doc */
+ "Implement engravers in Scheme. Interprets arguments to"
+ " @code{\\consists} as callbacks.",
- /* create */
- "",
+ /* create */
+ "",
- /* read */
- "",
+ /* read */
+ "",
- /* write */
- ""
- );
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff