- daddy_trans_->set_property ("timing" , SCM_BOOL_T);
- daddy_trans_->set_property ("currentBarNumber" , gh_int2scm (1));
-
- daddy_trans_->set_property ("timeSignatureFraction",
- gh_cons (gh_int2scm (4), gh_int2scm (4)));
- daddy_trans_->set_property ("measurePosition", Moment (Rational (0)).smobbed_copy ());
- daddy_trans_->set_property ("measureLength", Moment (Rational (1)).smobbed_copy ());
- daddy_trans_->set_property ("beatLength", Moment (Rational (1,4)).smobbed_copy ());
+ Context *timing = Context::unsmob (scm_call_2 (ly_lily_module_constant ("ly:context-find"),
+ context ()->self_scm (),
+ ly_symbol2scm ("Timing")));
+ if (timing != context ())
+ {
+ context ()->add_alias (ly_symbol2scm ("Timing"));
+
+ if (!timing)
+ {
+ programming_error ("Can't find Timing context template");
+ timing = context ();
+ }
+ }
+
+ SCM barnumber = timing->get_property ("currentBarNumber");
+ if (!scm_is_integer (barnumber))
+ barnumber = scm_from_int (1);
+ context ()->set_property ("currentBarNumber", barnumber);
+ context ()->set_property ("internalBarNumber", barnumber);
+
+ SCM timeSignatureFraction = timing->get_property ("timeSignatureFraction");
+
+ if (!scm_is_pair (timeSignatureFraction))
+ {
+ programming_error ("missing timeSignatureFraction");
+ timeSignatureFraction = scm_cons (scm_from_int (4), scm_from_int (4));
+ }
+ context ()->set_property ("timeSignatureFraction", timeSignatureFraction);
+
+ SCM measureLength = timing->get_property ("measureLength");
+
+ if (!Moment::is_smob (measureLength))
+ {
+ measureLength =
+ Moment (ly_scm2rational
+ (scm_divide (scm_car (timeSignatureFraction),
+ scm_cdr (timeSignatureFraction)))).smobbed_copy ();
+ }
+ context ()->set_property ("measureLength", measureLength);
+
+ /*
+ Do not init measurePosition; this should be done from global
+ context.
+ */
+
+ SCM timeSignatureSettings = timing->get_property ("timeSignatureSettings");
+ if (!scm_is_pair (timeSignatureSettings))
+ {
+ programming_error ("missing timeSignatureSettings");
+ // A memoized constant is not the prettiest thing as a fallback
+ // since it does not track changes of the variable. However,
+ // this is still better than nothing, and we already complained
+ // via a programming_error
+ timeSignatureSettings = ly_lily_module_constant ("default-time-signature-settings");
+ }
+ context ()->set_property ("timeSignatureSettings", timeSignatureSettings);
+
+ SCM beamExceptions = timing->get_property ("beamExceptions");
+ if (!scm_is_pair (beamExceptions))
+ {
+ beamExceptions =
+ scm_call_2 (ly_lily_module_constant ("beam-exceptions"),
+ timeSignatureFraction,
+ timeSignatureSettings);
+ }
+ context ()->set_property ("beamExceptions", beamExceptions);
+
+ SCM baseMoment = timing->get_property ("baseMoment");
+ if (!Moment::is_smob (baseMoment))
+ {
+ baseMoment =
+ Moment (ly_scm2rational
+ (scm_call_2 (ly_lily_module_constant ("base-length"),
+ timeSignatureFraction,
+ timeSignatureSettings))).smobbed_copy ();
+ }
+ context ()->set_property ("baseMoment", baseMoment);
+
+ SCM beatStructure = timing->get_property ("beatStructure");
+ if (!scm_is_pair (beatStructure))
+ {
+ beatStructure =
+ scm_call_3 (ly_lily_module_constant ("beat-structure"),
+ ly_rational2scm (Moment::unsmob (baseMoment)->main_part_),
+ timeSignatureFraction,
+ timeSignatureSettings);
+ }
+ context ()->set_property ("beatStructure", beatStructure);
+
+ context ()->set_property ("beamHalfMeasure",
+ timing->get_property ("beamHalfMeasure"));
+
+ context ()->set_property ("autoBeaming",
+ timing->get_property ("autoBeaming"));