Juste au cas où on fasse trop de conneries.

[minwii.git] / src / songs / musicxmltosong.py

diff --git a/src/songs/musicxmltosong.py b/src/songs/musicxmltosong.py
index 826363e..7f5c8bb 100755 (executable)
--- a/src/songs/musicxmltosong.py
+++ b/src/songs/musicxmltosong.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 """
-converstion d'un fichier musicxml en objet song minwii.
+conversion d'un fichier musicxml en objet song minwii.
 
 $Id$
 $URL$
@@ -41,6 +41,7 @@ class Part(object) :
     def __init__(self, node, autoDetectChorus=True) :
         self.node = node
         self.notes = []
+        self.repeats = []
         self._parseMusic()
         self.verses = [[]]
         self.chorus = []
@@ -50,25 +51,35 @@ class Part(object) :
     
     def _parseMusic(self) :
         divisions = 0
-        noteIndex = 0
-        next = previous = None
+        previous = None
+
         for measureNode in self.node.getElementsByTagName('measure') :
+            measureNotes = []
+            
+            # iteration sur les notes
             # divisions de la noire
             divisions = int(_getNodeValue(measureNode, 'attributes/divisions', divisions))
             for noteNode in measureNode.getElementsByTagName('note') :
                 note = Note(noteNode, divisions, previous)
                 if not note.isRest :
-                    self.notes.append(note)
-                    try :
-                        self.notes[noteIndex-1].next = note
-                    except IndexError:
-                        pass
+                    measureNotes.append(note)
+                    if previous :
+                        previous.next = note
                 else :
                     previous.addDuration(note)
                     continue
-                    
                 previous = note
-                noteIndex += 1
+            self.notes.extend(measureNotes)
+            
+            # barres de reprises
+            try :
+                barlineNode = measureNode.getElementsByTagName('barline')[0]
+            except IndexError :
+                continue
+            
+            barline = Barline(barlineNode, measureNotes)
+            if barline.repeat :
+                self.repeats.append(barline)
 
     def _findChorus(self):
         """ le refrain correspond aux notes pour lesquelles
@@ -97,9 +108,14 @@ class Part(object) :
         verse.append(self.notes[-1])
         
     
-    def iterNotes(self) :
+    def iterNotes(self, indefinitely=True) :
         "exécution de la chanson avec l'alternance couplets / refrains"
-        for verse in self.verses :
+        print 'indefinitely', indefinitely
+        if indefinitely == False :
+            iterable = self.verses
+        else :
+            iterable = cycle(self.verses)
+        for verse in iterable :
             print "---partie---"
             repeats = len(verse[0].lyrics)
             if repeats > 1 :
@@ -117,8 +133,8 @@ class Part(object) :
                     yield note, 0
         
     def pprint(self) :
-        for note, verseIndex in self.iterNotes() :
-            print note.nom, note.name, note.midi, note.duration, note.lyrics[verseIndex]
+        for note, verseIndex in self.iterNotes(indefinitely=False) :
+            print note, note.lyrics[verseIndex]
 
 
     def assignNotesFromMidiNoteNumbers(self):
@@ -131,7 +147,35 @@ class Part(object) :
                 noteInExtendedScale -= 1
             self.notes.append(noteInExtendedScale)
 
-        
+
+class Barline(object) :
+
+    def __init__(self, node, measureNotes) :
+        self.node = node
+        location = self.location = node.getAttribute('location') or 'right'
+        try :
+            repeatN = node.getElementsByTagName('repeat')[0]
+            repeat = {'direction' : repeatN.getAttribute('direction'),
+                      'times' : int(repeatN.getAttribute('times') or 1)}
+            if location == 'left' :
+                repeat['note'] = measureNotes[0]
+            elif location == 'right' :
+                repeat['note'] = measureNotes[-1]
+            else :
+                raise ValueError(location)
+            self.repeat = repeat
+        except IndexError :
+            self.repeat = None
+    
+    def __str__(self)  :
+        if self.repeat :
+            if self.location == 'left' :
+                return '|:'
+            elif self.location == 'right' :
+                return ':|'
+        return '|'
+
+    __repr__ = __str__
         
 
 class Note(object) :
@@ -158,6 +202,12 @@ class Note(object) :
         self.previous = previous
         self.next = None
     
+    def __str__(self) :
+        return (u'%5s %2s %2d %4s' % (self.nom, self.name, self.midi, round(self.duration, 2))).encode('utf-8')
+    
+    def __repr__(self) :
+        return self.name.encode('utf-8')
+    
     def addDuration(self, note) :
         self._duration = self.duration + note.duration
         self.divisions = 1
@@ -212,9 +262,12 @@ class Lyric(object) :
         self.syllabic = _getNodeValue(node, 'syllabic', 'single')
         self.text = _getNodeValue(node, 'text')
     
-    def __str__(self) :
+    def syllabus(self, encoding='utf-8'):
         text = self._syllabicModifiers[self.syllabic] % self.text
-        return text.encode('utf-8')
+        return text.encode(encoding)
+    
+    def __str__(self) :
+        return self.syllabus()
     __repr__  = __str__
         
         
@@ -250,32 +303,10 @@ def musicXml2Song(input, partIndex=0, printNotes=False) :
         part.pprint()
 
     return part
-
-    
-    # divisions de la noire
-#    divisions = 0
-#    midiNotes, durations, lyrics = [], [], []
-#
-#    for measureNode in leadPart.getElementsByTagName('measure') :
-#        divisions = int(_getNodeValue(measureNode, 'attributes/divisions', divisions))
-#        for noteNode in measureNode.getElementsByTagName('note') :
-#            note = Note(noteNode, divisions)
-#            if printNotes :
-#                print note.name, note.midi, note.duration, note.lyric
-#            midiNotes.append(note.midi)
-#            durations.append(note.duration)
-#            lyrics.append(note.lyric)
-#    
-#    song = Song(None,
-#                midiNoteNumbers = midiNotes,
-#                noteLengths = durations,
-#                lyrics = lyrics,
-#                notesInExtendedScale=None)
-#    song.save(output)
     
     
 def main() :
-    usage = "%prog musicXmlFile.xml outputSongFile.smwi [options]"
+    usage = "%prog musicXmlFile.xml [options]"
     op = OptionParser(usage)
     op.add_option("-i", "--part-index", dest="partIndex"
                  , default = 0