added partial-pickup feature

Author: FelippeRoza

ly/musicxml/create_musicxml.py

@@ -112,8 +112,10 @@ def create_part(self, name="unnamed", abbr=False, midi=False):
         self.part_count += 1
         self.bar_nr = 1
 
-    def create_measure(self, **bar_attrs):
+    def create_measure(self, pickup = False, **bar_attrs):
         """Create new measure """
+        if pickup and self.bar_nr == 1:
+            self.bar_nr = 0
         self.current_bar = etree.SubElement(self.current_part, "measure", number=str(self.bar_nr))
         self.bar_nr +=1
         if bar_attrs:

ly/musicxml/ly2xml_mediator.py

@@ -76,6 +76,7 @@ def __init__(self):
         self.prev_tremolo = 8
         self.tupl_dur = 0
         self.tupl_sum = 0
+        self.bar_is_pickup = False
 
     def new_header_assignment(self, name, value):
         """Distributing header information."""
@@ -309,11 +310,17 @@ def get_first_var(self):
         if self.sections:
             return self.sections[0].barlist
 
+    def set_pickup(self):
+        self.bar_is_pickup = True
+
     def new_bar(self, fill_prev=True):
         if self.bar and fill_prev:
             self.bar.list_full = True
         self.current_attr = xml_objs.BarAttr()
         self.bar = xml_objs.Bar()
+        if self.bar_is_pickup:
+            self.bar.pickup = True
+            self.bar_is_pickup = False
         self.bar.obj_list = [self.current_attr]
         self.insert_into.barlist.append(self.bar)
 

ly/musicxml/lymus2musxml.py

@@ -345,7 +345,7 @@ def Duration(self, duration):
             self.mediator.set_tuplspan_dur(duration.token, duration.tokens)
             self.tupl_span = False
         elif self.pickup:
-            #TO DO
+            self.mediator.set_pickup()
             self.pickup = False
         else:
             self.mediator.new_duration_token(duration.token, duration.tokens)

ly/musicxml/xml_objs.py

@@ -102,7 +102,7 @@ def iterate_part(self, part):
 
     def iterate_bar(self, bar):
         """The objects in the bar are output to the xml-file."""
-        self.musxml.create_measure()
+        self.musxml.create_measure(pickup = bar.pickup)
         for obj in bar.obj_list:
             if isinstance(obj, BarAttr):
                 self.new_xml_bar_attr(obj)
@@ -432,6 +432,7 @@ class Bar():
     Contains also information about how complete it is."""
     def __init__(self):
         self.obj_list = []
+        self.pickup = False
         self.list_full = False
 
     def __repr__(self):