source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "music-output-def.hh"
#include "translator-def.hh"
Translator_group::Translator_group (Translator_group const&s)
- : Translator(s)
+ : Translator (s)
{
iterator_count_ =0;
Scheme_hash_table * tab = new Scheme_hash_table (*s.properties_dict ());
properties_scm_ = tab->self_scm ();
- scm_unprotect_object (tab->self_scm( ));
+ scm_unprotect_object (tab->self_scm ());
}
Scheme_hash_table*
Translator_group::~Translator_group ()
{
- assert (removable_b());
+
+ //assert (removable_b ());
}
-Translator_group::Translator_group()
+Translator_group::Translator_group ()
{
iterator_count_ = 0;
Scheme_hash_table *tab = new Scheme_hash_table ;
}
void
-Translator_group::check_removal()
+Translator_group::check_removal ()
{
SCM next = SCM_EOL;
for (SCM p = trans_group_list_; gh_pair_p (p); p = next)
Translator_group *trg = dynamic_cast<Translator_group*> (unsmob_translator (gh_car (p)));
trg->check_removal ();
- if (trg->removable_b())
+ if (trg->removable_b ())
terminate_translator (trg);
}
}
list = gh_append2 (list, gh_cons (t->self_scm (), SCM_EOL));
t->daddy_trans_l_ = this;
t->output_def_l_ = output_def_l_;
- t->add_processing ();
-
+ if (Translator_group*tg = dynamic_cast<Translator_group*> (t))
+ {
+ unsmob_translator_def (tg->definition_)->apply_property_operations (tg);
+ }
+
+ t->initialize ();
return list;
}
void
bool
-Translator_group::removable_b() const
+Translator_group::removable_b () const
{
return trans_group_list_ == SCM_EOL && ! iterator_count_;
}
return existing;
Link_array<Translator_def> path
- = unsmob_translator_def (definition_)->path_to_acceptable_translator (gh_str02scm (n.ch_C()), output_def_l ());
+ = unsmob_translator_def (definition_)->path_to_acceptable_translator (ly_str02scm ((char*)n.ch_C ()), output_def_l ());
if (path.size ())
{
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 = gh_cdr (p))
{
}
bool
-Translator_group::do_try_music (Music* m)
+Translator_group::try_music (Music* m)
{
bool hebbes_b = try_music_on_nongroup_children (m);
}
int
-Translator_group::depth_i() const
+Translator_group::depth_i () const
{
- return (daddy_trans_l_) ? daddy_trans_l_->depth_i() + 1 : 0;
+ return (daddy_trans_l_) ? daddy_trans_l_->depth_i () + 1 : 0;
}
Translator_group*
void
Translator_group::terminate_translator (Translator*r_l)
{
- r_l->removal_processing();
+ r_l->removal_processing ();
/*
Return value ignored. GC does the rest.
*/
return trans_l;
}
-#if 0
-/*
- should not use, instead: use properties to communicate between engravers.
- */
-Translator*
-Translator_group::get_simple_translator (String type) const
-{
- for (SCM p = simple_trans_list_; gh_pair_p (p); p =gh_cdr (p))
- {
- if (classname (unsmob_translator (gh_car (p))) == type)
- return unsmob_translator (gh_car (p));
- }
- if (daddy_trans_l_)
- return daddy_trans_l_->get_simple_translator (type);
- return 0;
-}
-#endif
-
bool
Translator_group::is_bottom_translator_b () const
{
- return unsmob_translator_def (definition_)->accepts_name_list_ == SCM_EOL;
+ return !gh_string_p (unsmob_translator_def (definition_)->default_child_context_name ());
+
}
Translator_group*
-Translator_group::get_default_interpreter()
+Translator_group::get_default_interpreter ()
{
if (!is_bottom_translator_b ())
{
- SCM nm = unsmob_translator_def (definition_)->accepts_name_list_;
- SCM st = output_def_l ()->find_translator_l (gh_car (nm));
+ SCM nm = unsmob_translator_def (definition_)->default_child_context_name ();
+ SCM st = output_def_l ()->find_translator_l (nm);
Translator_def *t = unsmob_translator_def (st);
if (!t)
{
- warning (_f ("can't find or create: `%s'", ly_scm2string (nm).ch_C()));
+ 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_);
static void
static_each (SCM list, Method_pointer method)
{
- for (SCM p = list; gh_pair_p (p); p = gh_cdr(p))
- (unsmob_translator (gh_car (p))->*method) ();
+ for (SCM p = list; gh_pair_p (p); p = gh_cdr (p))
+ (unsmob_translator (gh_car (p))->*method) ();
}
static_each (trans_group_list_, method);
}
-void
-Translator_group::do_print() const
-{
-#ifndef NPRINT
-#endif
-}
-
-void
-Translator_group::do_add_processing ()
-{
- for (SCM s = simple_trans_list_; gh_pair_p (s) ; s = gh_cdr (s))
- {
- Translator * t = unsmob_translator (gh_car (s));
- t->add_processing ();
- }
-}
/*
PROPERTIES
return (daddy_trans_l_) ? daddy_trans_l_->where_defined (sym) : 0;
}
+/*
+ return SCM_EOL when not found.
+*/
SCM
Translator_group::get_property (SCM sym) const
{
- if (properties_dict ()->elem_b (sym))
- {
- return properties_dict ()->get (sym);
- }
+ SCM val =SCM_EOL;
+ if (properties_dict ()->try_retrieve (sym, &val))
+ return val;
if (daddy_trans_l_)
return daddy_trans_l_->get_property (sym);
- return SCM_UNDEFINED;
+ return val;
}
void
Translator_group::set_property (String id, SCM val)
{
- set_property (ly_symbol2scm (id.ch_C()), val);
+ set_property (ly_symbol2scm (id.ch_C ()), val);
}
+
void
Translator_group::set_property (SCM sym, SCM val)
{
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 (gh_symbol_p (prop))
{
if (val != SCM_UNDEFINED)
{
SCM prev = get_property (prop);
- prev = gh_cons (gh_cons (eltprop, val), prev);
- set_property (prop, prev);
+ if (gh_pair_p (prev) || prev == SCM_EOL)
+ {
+ bool ok = type_check_assignment (val, eltprop, ly_symbol2scm ("backend-type?"));
+
+
+
+ if (ok)
+ {
+ prev = gh_cons (gh_cons (eltprop, val), prev);
+ set_property (prop, prev);
+ }
+ }
+ else
+ {
+ // warning here.
+ }
+
}
else
{
STUBS
*/
void
-Translator_group::do_pre_move_processing ()
+Translator_group::stop_translation_timestep ()
{
- each (&Translator::pre_move_processing);
+ each (&Translator::stop_translation_timestep);
}
void
-Translator_group::do_post_move_processing ()
+Translator_group::start_translation_timestep ()
{
- each (&Translator::post_move_processing);
+ each (&Translator::start_translation_timestep);
}
void
-Translator_group::do_process_music ()
+Translator_group::do_announces ()
{
- each (&Translator::process_music);
+ each (&Translator::announces);
}
void
-Translator_group::do_creation_processing ()
+Translator_group::initialize ()
{
- each (&Translator::creation_processing);
+ each (&Translator::initialize);
}
void
-Translator_group::do_removal_processing ()
+Translator_group::finalize ()
{
each (&Translator::removal_processing);
}
+
+
+bool
+type_check_assignment (SCM val, SCM sym, SCM type_symbol)
+{
+ bool ok = true;
+ SCM type_p = SCM_EOL;
+
+ if (gh_symbol_p (sym))
+ type_p = scm_object_property (sym, type_symbol);
+
+ if (type_p != SCM_EOL && !gh_procedure_p (type_p))
+ {
+ warning (_f ("Can't find property type-check for `%s'. Perhaps you made a typing error? Doing assignment anyway.",
+ ly_symbol2string (sym).ch_C ()));
+ }
+ else
+ {
+ if (val != SCM_EOL
+ && gh_procedure_p (type_p)
+ && gh_call1 (type_p, val) == SCM_BOOL_F)
+ {
+ SCM errport = scm_current_error_port ();
+ ok = false;
+ SCM typefunc = scm_eval2 (ly_symbol2scm ("type-name"), SCM_EOL);
+ SCM type_name = gh_call1 (typefunc, type_p);
+
+ scm_puts (_f ("Type check for `%s' failed; value `%s' must be of type `%s'",
+ ly_symbol2string (sym).ch_C (),
+ ly_scm2string (ly_write2scm (val)).ch_C (),
+ ly_scm2string (type_name).ch_C ()).ch_C (),
+ errport);
+ scm_puts ("\n", errport);
+ }
+ }
+ return ok;
+}
+
+SCM
+ly_get_trans_property (SCM context, SCM name)
+{
+ Translator *t = unsmob_translator (context);
+ Translator_group* tr= dynamic_cast<Translator_group*> (t);
+ if (!t || !tr)
+ {
+ /* programming_error? */
+ warning (_ ("ly-get-trans-property: expecting a Translator_group argument"));
+ return SCM_EOL;
+ }
+ return tr->get_property (name);
+
+}
+SCM
+ly_set_trans_property (SCM context, SCM name, SCM val)
+{
+
+ Translator *t = unsmob_translator (context);
+ Translator_group* tr= dynamic_cast<Translator_group*> (t);
+ if (tr)
+ {
+ tr->set_property (name, val);
+ }
+ return SCM_UNSPECIFIED;
+}
+
+
+
+
+void
+add_trans_scm_funcs ()
+{
+ scm_make_gsubr ("ly-get-trans-property", 2, 0, 0, (Scheme_function_unknown)ly_get_trans_property);
+ scm_make_gsubr ("ly-set-trans-property", 3, 0, 0, (Scheme_function_unknown)ly_set_trans_property);
+}
+
+ADD_SCM_INIT_FUNC (trans_scm, add_trans_scm_funcs);
projects / lilypond.git / blobdiff