def __delitem__(self, i):
r'''Container item deletion with optional time signature adjustment.
'''
old_time_signature = self.time_signature
old_denominator = getattr(old_time_signature, 'denominator', None)
FixedDurationContainer.__delitem__(self, i)
self._conditionally_adjust_time_signature(old_denominator)
def __setitem__(self, i, expr):
r'''Container setitem logic with optional time signature adjustment.
Measure setitem logic now adjusts time signatue automatically
when ``adjust_time_signature_automatically`` is true.
'''
old_time_signature = self.time_signature
old_denominator = getattr(old_time_signature, 'denominator', None)
FixedDurationContainer.__setitem__(self, i, expr)
self._conditionally_adjust_time_signature(old_denominator)
def __init__(self, time_signature, music=None, **kwargs):
from abjad.tools.scoretools import attach
# set time signature adjustment indicator before
# contents initialization
self._automatically_adjust_time_signature = False
FixedDurationContainer.__init__(self, time_signature, music)
self._always_format_time_signature = False
self._measure_number = None
time_signature = contexttools.TimeSignatureMark(time_signature)
attach(time_signature, self)
self._initialize_keyword_values(**kwargs)
def _format_content_pieces(self):
result = []
# the class name test here functions to exclude scaleDurations
# from anonymous and dynamic measures
# TODO: subclass this prooperly on anonymous and dynamic measures
if self.has_non_power_of_two_denominator and type(self) is Measure:
result.append("\t\\scaleDurations #'(%s . %s) {" % (
self.implied_prolation.numerator,
self.implied_prolation.denominator))
result.extend( ['\t' + x
for x in FixedDurationContainer._format_content_pieces(self)])
result.append('\t}')
else:
result.extend(FixedDurationContainer._format_content_pieces(self))
return result
