/*
- context.cc -- implement Context
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2004--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2004--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"
}
}
-Context::Context (Context const &src)
+Context::Context (Context const & /* src */)
{
- (void) src;
assert (false);
}
if (gthis && gthis->get_score_context ())
return gthis->get_score_context ()->create_unique_context (name, id, operations);
- /*
- TODO: use accepts_list_.
- */
- vector<Context_def*> path
- = unsmob_context_def (definition_)->path_to_acceptable_context (name, get_output_def ());
-
+ vector<Context_def *> path = path_to_acceptable_context (name);
if (path.size ())
{
Context *current = this;
- // start at 1. The first one (index 0) will be us.
+ // Iterate through the path and create all of the implicit contexts.
for (vsize i = 0; i < path.size (); i++)
{
SCM ops = SCM_EOL;
if (n == ly_symbol2scm ("Bottom"))
{
- Context *tg = get_default_interpreter ();
+ Context *tg = get_default_interpreter (id);
return tg;
}
- /*
- TODO: use accepts_list_.
- */
- vector<Context_def*> path
- = unsmob_context_def (definition_)->path_to_acceptable_context (n, get_output_def ());
+ vector<Context_def*> path = path_to_acceptable_context (n);
if (path.size ())
{
SCM type_scm = ev->get_property ("type");
string type = ly_symbol2string (type_scm);
- vector<Context_def*> path
- = unsmob_context_def (definition_)->path_to_acceptable_context (type_scm, get_output_def ());
+ vector<Context_def*> path = path_to_acceptable_context (type_scm);
+
if (path.size () != 1)
{
programming_error (_f ("Invalid CreateContext event: Cannot create %s context", type.c_str ()));
ly_symbol2scm ("creator"), sev);
}
+vector<Context_def*>
+Context::path_to_acceptable_context (SCM name) const
+{
+ // The 'accepts elements in definition_mods_ is a list of ('accepts string),
+ // but the Context_def expects to see elements of the form ('accepts symbol).
+ SCM accepts = SCM_EOL;
+ for (SCM s = scm_reverse (definition_mods_); scm_is_pair (s); s = scm_cdr (s))
+ if (scm_caar (s) == ly_symbol2scm ("accepts"))
+ {
+ SCM elt = scm_list_2 (scm_caar (s), scm_string_to_symbol (scm_cadar (s)));
+ accepts = scm_cons (elt, accepts);
+ }
+
+ return unsmob_context_def (definition_)->path_to_acceptable_context (name,
+ get_output_def (),
+ accepts);
+
+}
+
Context *
Context::create_context (Context_def *cdef,
string id,
}
Context *
-Context::get_default_interpreter ()
+Context::get_default_interpreter (string context_id)
{
if (!is_bottom_context ())
{
t = unsmob_context_def (this->definition_);
}
- Context *tg = create_context (t, "", SCM_EOL);
- return tg->get_default_interpreter ();
+ Context *tg = create_context (t, context_id, SCM_EOL);
+ return tg->get_default_interpreter (context_id);
}
return this;
}
void
Context::internal_set_property (SCM sym, SCM val)
{
+ bool type_check_ok = type_check_assignment (sym, val, ly_symbol2scm ("translation-type?"));
+
if (do_internal_type_checking_global)
- assert (type_check_assignment (sym, val, ly_symbol2scm ("translation-type?")));
+ assert (type_check_ok);
- properties_dict ()->set (sym, val);
+ if (type_check_ok)
+ properties_dict ()->set (sym, val);
}
/*
return m;
}
+/* Finds the measure position after a note of length DUR that
+ begins at the current measure position. */
+Moment
+measure_position (Context const *context, Duration const *dur)
+{
+ Moment pos = measure_position (context);
+ Rational dur_length = dur ? dur->get_length () : Rational (0);
+
+ Moment end_pos = pos.grace_part_ < Rational(0)
+ ? Moment(pos.main_part_, pos.grace_part_ + dur_length)
+ : Moment(pos.main_part_ + dur_length, 0);
+
+ return end_pos;
+}
+
+int
+measure_number (Context const *context)
+{
+ SCM barnum = context->get_property ("internalBarNumber");
+ SCM smp = context->get_property ("measurePosition");
+
+ int bn = robust_scm2int (barnum, 0);
+ Moment mp = robust_scm2moment (smp, Moment (0));
+ if (mp.main_part_ < Rational (0))
+ bn--;
+
+ return bn;
+}
+
void
set_context_property_on_children (Context *trans, SCM sym, SCM val)
SCM melisma_properties = tr->get_property ("melismaBusyProperties");
bool busy = false;
- for (; scm_is_pair (melisma_properties);
+ for (; !busy && scm_is_pair (melisma_properties);
melisma_properties = scm_cdr (melisma_properties))
busy = busy || to_boolean (tr->internal_get_property (scm_car (melisma_properties)));
return busy;
}
+
+bool
+check_repeat_count_visibility (Context const *context, SCM count)
+{
+ SCM proc = context->get_property ("repeatCountVisibility");
+ return (ly_is_procedure (proc)
+ && to_boolean (scm_call_2 (proc,
+ count,
+ context->self_scm ())));
+}
projects / lilypond.git / blobdiff