return cn[0]
+ def get_named_child_value_number (self, name, default):
+ n = self.get_maybe_exist_named_child (name)
+ if n:
+ return string.atoi (n.get_text())
+ else:
+ return default
+
+
class Music_xml_node (Xml_node):
def __init__ (self):
Xml_node.__init__ (self)
alter = int (ch.get_text ().strip ())
return alter
+class Unpitched (Music_xml_node):
+ def get_step (self):
+ ch = self.get_unique_typed_child (get_class (u'display-step'))
+ step = ch.get_text ().strip ()
+ return step
+
+ def get_octave (self):
+ ch = self.get_unique_typed_child (get_class (u'display-octave'))
+
+ if ch:
+ octave = ch.get_text ().strip ()
+ return int (octave)
+ else:
+ return None
+
class Measure_element (Music_xml_node):
def get_voice_id (self):
voice_id = self.get_maybe_exist_named_child ('voice')
else:
return (4, 4)
except KeyError:
- sys.stderr.write ('error: requested time signature, but time sig unknown\n')
+ sys.stderr.write (_ ("error: requested time signature, but time sig is unknown\n"))
return (4, 4)
# returns clef information in the form ("cleftype", position, octave-shift)
fifths = int (key.get_maybe_exist_named_child ('fifths').get_text ())
return (fifths, mode)
-
+
+class Barline (Measure_element):
+ pass
+class BarStyle (Music_xml_node):
+ pass
+class Partial (Measure_element):
+ def __init__ (self, partial):
+ Measure_element.__init__ (self)
+ self.partial = partial
class Note (Measure_element):
def __init__ (self):
'whole': 0,
'breve': -1,
'long': -2}.get (log, 0)
+ elif self.get_maybe_exist_named_child (u'grace'):
+ # FIXME: is it ok to default to eight note for grace notes?
+ return 3
else:
- self.message ("Encountered note at %s without %s duration (no <type> element):" % (self.start, self.duration) )
+ self.message (_ ("Encountered note at %s with %s duration (no <type> element):") % (self.start, self.duration) )
return 0
def get_factor (self):
if instrument_name:
return instrument_name
else:
- sys.stderr.write ("Opps, couldn't find instrument for ID=%s\n" % id)
+ sys.stderr.write (_ ("Unable to find find instrument for ID=%s\n") % id)
return "Grand Piano"
class Part_group (Music_xml_node):
pass
class Measure (Music_xml_node):
+ def __init__ (self):
+ Music_xml_node.__init__ (self)
+ self.partial = 0
+ def is_implicit (self):
+ return hasattr (self, 'implicit') and self.implicit == 'yes'
def get_notes (self):
return self.get_typed_children (get_class (u'note'))
return self._lyrics
-
class Part (Music_xml_node):
def __init__ (self):
Music_xml_node.__init__ (self)
- self._voices = []
+ self._voices = {}
+ self._staff_attributes_dict = {}
def get_part_list (self):
n = self
def interpret (self):
"""Set durations and starting points."""
+ """The starting point of the very first note is 0!"""
part_list = self.get_part_list ()
measures = self.get_typed_children (Measure)
last_moment = Rational (-1)
last_measure_position = Rational (-1)
+ measure_position = Rational (0)
+ measure_start_moment = now
+ is_first_measure = True
+ previous_measure = None
for m in measures:
- measure_start_moment = now
- measure_position = Rational (0)
- for n in m.get_all_children ():
+ # implicit measures are used for artificial measures, e.g. when
+ # a repeat bar line splits a bar into two halves. In this case,
+ # don't reset the measure position to 0. They are also used for
+ # upbeats (initial value of 0 fits these, too).
+ # Also, don't reset the measure position at the end of the loop,
+ # but rather when starting the next measure (since only then do we
+ # know if the next measure is implicit and continues that measure)
+ if not m.is_implicit ():
+ # Warn about possibly overfull measures and reset the position
+ if attributes_object and previous_measure and previous_measure.partial == 0:
+ length = attributes_object.get_measure_length ()
+ new_now = measure_start_moment + length
+ if now <> new_now:
+ problem = 'incomplete'
+ if now > new_now:
+ problem = 'overfull'
+ ## only for verbose operation.
+ if problem <> 'incomplete' and previous_measure:
+ previous_measure.message ('%s measure? Expected: %s, Difference: %s' % (problem, now, new_now - now))
+ now = new_now
+ measure_start_moment = now
+ measure_position = Rational (0)
+
+ for n in m.get_all_children ():
if isinstance (n, Hash_text):
continue
dur = Rational (0)
if instrument:
n.instrument_name = part_list.get_instrument (instrument.id)
- if attributes_object:
- length = attributes_object.get_measure_length ()
- new_now = measure_start_moment + length
-
- if now <> new_now:
- problem = 'incomplete'
- if now > new_now:
- problem = 'overfull'
-
- ## only for verbose operation.
- if problem <> 'incomplete':
- m.message ('%s measure? Expected: %s, Difference: %s' % (problem, now, new_now - now))
-
- now = new_now
+ # Incomplete first measures are not padded, but registered as partial
+ if is_first_measure:
+ is_first_measure = False
+ # upbeats are marked as implicit measures
+ if attributes_object and m.is_implicit ():
+ length = attributes_object.get_measure_length ()
+ measure_end = measure_start_moment + length
+ if measure_end <> now:
+ m.partial = now
+ previous_measure = m
# modify attributes so that only those applying to the given staff remain
def extract_attributes_for_staff (part, attr, staff):
measures = part.get_typed_children (Measure)
elements = []
for m in measures:
+ if m.partial > 0:
+ elements.append (Partial (m.partial))
elements.extend (m.get_all_children ())
# make sure we know all voices already so that dynamics, clefs, etc.
# can be assigned to the correct voices
start_attr = None
+ assign_to_next_note = []
+ id = None
for n in elements:
voice_id = n.get_maybe_exist_typed_child (get_class ('voice'))
- if not (voice_id or isinstance (n, Attributes) or isinstance (n, Direction) ):
+ if not (voice_id or isinstance (n, Attributes) or
+ isinstance (n, Direction) or isinstance (n, Partial) or
+ isinstance (n, Barline) or isinstance (n, Harmony) ):
continue
if isinstance (n, Attributes) and not start_attr:
voices[v].add_element (staff_attributes)
continue
+ if isinstance (n, Partial) or isinstance (n, Barline):
+ for v in voices.keys ():
+ voices[v].add_element (n)
+ continue
+
if isinstance (n, Direction):
staff_id = n.get_maybe_exist_named_child (u'staff')
if staff_id:
voices[v].add_element (n)
continue
+ if isinstance (n, Harmony):
+ # store the harmony element until we encounter the next note
+ # and assign it only to that one voice.
+ assign_to_next_note.append (n)
+ continue
+
id = voice_id.get_text ()
if hasattr (n, 'print-object') and getattr (n, 'print-object') == "no":
#Skip this note.
pass
else:
+ for i in assign_to_next_note:
+ voices[id].add_element (i)
+ assign_to_next_note = []
voices[id].add_element (n)
+ # Assign all remaining elements from assign_to_next_note to the voice
+ # of the previous note:
+ for i in assign_to_next_note:
+ voices[id].add_element (i)
+ assign_to_next_note = []
+
if start_attr:
for (s, vids) in staff_to_voice_dict.items ():
staff_attributes = part.extract_attributes_for_staff (start_attr, s)
staff_attributes.read_self ()
+ part._staff_attributes_dict[s] = staff_attributes
for v in vids:
voices[v].insert (0, staff_attributes)
voices[v]._elements[0].read_self()
def get_voices (self):
return self._voices
+ def get_staff_attributes (self):
+ return self._staff_attributes_dict
class Notations (Music_xml_node):
def get_tie (self):
else:
return None
- def get_tuplet (self):
- return self.get_maybe_exist_typed_child (Tuplet)
+ def get_tuplets (self):
+ return self.get_typed_children (Tuplet)
class Time_modification(Music_xml_node):
def get_fraction (self):
class Tuplet (Music_xml_spanner):
pass
+class Bracket (Music_xml_spanner):
+ pass
+
+class Dashes (Music_xml_spanner):
+ pass
+
class Slur (Music_xml_spanner):
def get_type (self):
return self.type
else:
return 0
+class Words (Music_xml_node):
+ pass
+
+class Harmony (Music_xml_node):
+ pass
+
+class Frame (Music_xml_node):
+ def get_frets (self):
+ return self.get_named_child_value_number ('frame-frets', 4)
+ def get_strings (self):
+ return self.get_named_child_value_number ('frame-strings', 6)
+ def get_first_fret (self):
+ return self.get_named_child_value_number ('first-fret', 1)
+class Frame_Note (Music_xml_node):
+ def get_string (self):
+ return self.get_named_child_value_number ('string', 1)
+ def get_fret (self):
+ return self.get_named_child_value_number ('fret', 0)
+ def get_fingering (self):
+ return self.get_named_child_value_number ('fingering', -1)
+ def get_barre (self):
+ n = self.get_maybe_exist_named_child ('barre')
+ if n:
+ return getattr (n, 'type', '')
+ else:
+ return ''
## need this, not all classes are instantiated
'#text': Hash_text,
'accidental': Accidental,
'attributes': Attributes,
+ 'barline': Barline,
+ 'bar-style': BarStyle,
'beam' : Beam,
'bend' : Bend,
+ 'bracket' : Bracket,
'chord': Chord,
+ 'dashes' : Dashes,
'dot': Dot,
'direction': Direction,
'direction-type': DirType,
'duration': Duration,
+ 'frame': Frame,
+ 'frame-note': Frame_Note,
'glissando': Glissando,
'grace': Grace,
+ 'harmony': Harmony,
'identification': Identification,
'lyric': Lyric,
'measure': Measure,
'time-modification': Time_modification,
'tuplet': Tuplet,
'type': Type,
+ 'unpitched': Unpitched,
'wavy-line': Wavy_line,
'wedge': Wedge,
+ 'words': Words,
'work': Work,
}
projects / lilypond.git / blobdiff