--- a/pyink/MBScene.py	Wed Nov 17 13:30:32 2010 +0800
+++ b/pyink/MBScene.py	Wed Nov 17 14:17:59 2010 +0800
@@ -43,607 +43,613 @@
     pass
 
 class Scene:
-	def __init__(self, node, start,end):
-		self.node = node
-		self.start = int(start)
-		self.end = int(end)
-		pass
+    def __init__(self, node, start,end):
+	self.node = node
+	self.start = int(start)
+	self.end = int(end)
 	pass
+    pass
 
 
 class MBScene():
-	def __init__(self,desktop,win):
-		self.desktop = desktop
-		self.window = win
-		self.layer = []
-		self.layer.append(Layer(None))
-		self.scenemap = None
-		pass
+    def __init__(self,desktop,win):
+	self.desktop = desktop
+	self.window = win
+	self.layer = []
+	self.layer.append(Layer(None))
+	self.scenemap = None
+	pass
 
-	def confirm(self,msg):
-		vbox = gtk.VBox()
-		vbox.pack_start(gtk.Label(msg))
-		self.button = gtk.Button('OK')
-		vbox.pack_start(self.button)
-		self.button.connect("clicked", self.onQuit)
-		self.window.add(vbox)
-		pass
-	
-	def dumpattr(self,n):
-		s = ""
-		for a,v in n.attrib.items():
-			s = s + ("%s=%s"  % (a,v))
-		return s
-			
-	def dump(self,node,l=0):
-		print " " * l*2,"<", node.tag, self.dumpattr(node),">"
-		for n in node:
-			self.dump(n,l+1)
-			pass
-		print " " * l * 2,"/>"
-		pass
-	
-	def parseMetadata(self,node):
-		self.current = 1
-		for n in node.childList():
-			if n.repr.name() == 'ns0:scenes':
-				self.scenemap={}
-				cur = int(n.repr.attribute("current"))
-				self.current = cur
-
-				for s in n.childList():
-					print '--->',s.repr.name()
-					if s.repr.name() == 'ns0:scene':
-						try:
-							start = int(s.repr.attribute("start"))
-						except:
-							traceback.print_exc()
-							continue
-						try:
-							end = s.repr.attribute("end")
-							if end == None:
-								end = start
-						except:
-							end = start
-							pass
-						link = s.repr.attribute("ref")
-						self.scenemap[link] = [int(start),int(end)]
-						print "scene %d to %d" % (self.scenemap[link][0],self.scenemap[link][1])
-						if cur >= start and cur <= end:
-						    self.currentscene = link
-						    pass
-						pass
-					pass
-				pass
-			pass
-		pass
+    def confirm(self,msg):
+	vbox = gtk.VBox()
+	vbox.pack_start(gtk.Label(msg))
+	self.button = gtk.Button('OK')
+	vbox.pack_start(self.button)
+	self.button.connect("clicked", self.onQuit)
+	self.window.add(vbox)
+	pass
+    
+    def dumpattr(self,n):
+	s = ""
+	for a,v in n.attrib.items():
+	    s = s + ("%s=%s"  % (a,v))
+	    pass
+	return s
 	
-						
-	def parseScene(self):
-		"""
-		In this function, we will collect all items for the current scene and then relocate them back to the appropriate scene object.
-		"""
-		self.layer = []
-		self.scenemap = None
-		doc = self.desktop.doc().root()
-
-		for node in doc.childList():
-			if node.repr.name() == 'svg:metadata':
-				self.parseMetadata(node)
-				pass
-			elif node.repr.name() == 'svg:g':
-				oldscene = None
-				#print layer.attrib.get("id")
-				lyobj = Layer(node)
-				self.layer.append(lyobj)
-				lyobj.current_scene = []
-				for scene in node.childList():
-					if scene.repr.name() == 'svg:g':
-						try:
-							scmap = self.scenemap[scene.getId()]
-							if scmap == None:
-								lyobj.current_scene.append(scene)
-								continue
-							if self.current <= scmap[1] and self.current >= scmap[0]:
-								oldscene = scene
-								pass
-						except:
-							lyobj.current_scene.append(scene)
-							continue
-
-						lyobj.scene.append(Scene(scene,scmap[0],scmap[1]))
-						pass
-					else:
-						lyobj.current_scene.append(scene)
-						pass
-					pass
+    def dump(self,node,l=0):
+	print " " * l*2,"<", node.tag, self.dumpattr(node),">"
+	for n in node:
+	    self.dump(n,l+1)
+	    pass
+	print " " * l * 2,"/>"
+	pass
+    
+    def parseMetadata(self,node):
+	self.current = 1
+	for n in node.childList():
+	    if n.repr.name() == 'ns0:scenes':
+		self.scenemap={}
+		cur = int(n.repr.attribute("current"))
+		self.current = cur
 
-				if oldscene != None:
-					# Put the objects back to the current scene
-					#for o in lyobj.current_scene:
-						#print o.tag
-						#oldscene.append(o)
-					pass
+		for s in n.childList():
+		    print '--->',s.repr.name()
+		    if s.repr.name() == 'ns0:scene':
+			try:
+			    start = int(s.repr.attribute("start"))
+			except:
+			    traceback.print_exc()
+			    continue
+			try:
+			    end = s.repr.attribute("end")
+			    if end == None:
+				end = start
 				pass
+			except:
+			    end = start
+			    pass
+			link = s.repr.attribute("ref")
+			self.scenemap[link] = [int(start),int(end)]
+			print "scene %d to %d" % (self.scenemap[link][0],self.scenemap[link][1])
+			if cur >= start and cur <= end:
+			    self.currentscene = link
+			    pass
 			pass
-
-		self.collectID()
-		self.dumpID()
-		pass
-
-	def collectID(self):
-		self.ID = {}
-		root = self.desktop.doc().root()
-		for n in root.childList():
-			self.collectID_recursive(n)
-			pass
+		    pass
 		pass
-	
-	def collectID_recursive(self,node):
-		self.ID[node.getId()] = 1
-		for n in node.childList():
-			self.collectID_recursive(n)
-			pass
+	    pass
+	pass
+    
+    
+    def parseScene(self):
+	"""
+	In this function, we will collect all items for the current scene and then relocate them back to the appropriate scene object.
+	"""
+	self.layer = []
+	self.scenemap = None
+	doc = self.desktop.doc().root()
+
+	for node in doc.childList():
+	    if node.repr.name() == 'svg:metadata':
+		self.parseMetadata(node)
 		pass
-	
-	def newID(self):
-		while True:
-			n = 's%d' % int(random.random()*10000)
-			#print "try %s" % n
-			if self.ID.has_key(n) == False:
-				return n
+	    elif node.repr.name() == 'svg:g':
+		oldscene = None
+				#print layer.attrib.get("id")
+		lyobj = Layer(node)
+		self.layer.append(lyobj)
+		lyobj.current_scene = []
+		for scene in node.childList():
+		    if scene.repr.name() == 'svg:g':
+			try:
+			    scmap = self.scenemap[scene.getId()]
+			    if scmap == None:
+				lyobj.current_scene.append(scene)
+				continue
+			    if self.current <= scmap[1] and self.current >= scmap[0]:
+				oldscene = scene
+				pass
+			except:
+			    lyobj.current_scene.append(scene)
+			    continue
+
+			lyobj.scene.append(Scene(scene,scmap[0],scmap[1]))
 			pass
-		pass
-	
-	def dumpID(self):
-		for a,v in self.ID.items():
-			print a
+		    else:
+			lyobj.current_scene.append(scene)
 			pass
+		    pass
+
+		if oldscene != None:
+		    # Put the objects back to the current scene
+		    # for o in lyobj.current_scene:
+		    #     print o.tag
+		    #     oldscene.append(o)
+		    pass
 		pass
-		
-	def getLayer(self, layer):
-		for l in self.layer:
-			if l.node.getId() == layer:
-				return l
-			pass
-		return None
-		
-	
-	def insertKeyScene(self):
-		"""
-		Insert a new key scene into the stage. If the nth is always a key scene, we will return without changing anything. 
-		If the nth is a filled scene, we will break the original scene into two parts. If the nth is out of any scene, we will
-		append a new scene.
+	    pass
+
+	self.collectID()
+	self.dumpID()
+	pass
+
+    def collectID(self):
+	self.ID = {}
+	root = self.desktop.doc().root()
+	for n in root.childList():
+	    self.collectID_recursive(n)
+	    pass
+	pass
+    
+    def collectID_recursive(self,node):
+	self.ID[node.getId()] = 1
+	for n in node.childList():
+	    self.collectID_recursive(n)
+	    pass
+	pass
+    
+    def newID(self):
+	while True:
+	    n = 's%d' % int(random.random()*10000)
+			#print "try %s" % n
+	    if self.ID.has_key(n) == False:
+		return n
+	    pass
+	pass
+    
+    def dumpID(self):
+	for a,v in self.ID.items():
+	    print a
+	    pass
+	pass
+    
+    def getLayer(self, layer):
+	for l in self.layer:
+	    if l.node.getId() == layer:
+		return l
+	    pass
+	return None
+    
+    
+    def insertKeyScene(self):
+	"""
+	Insert a new key scene into the stage. If the nth is always a key scene, we will return without changing anything. 
+	If the nth is a filled scene, we will break the original scene into two parts. If the nth is out of any scene, we will
+	append a new scene.
 
-		"""
-		nth = self.last_cell.nScene
-		layer = self.getLayer(self.last_cell.layer)
-		x = self.last_cell.nScene
-		y = self.last_cell.nLayer
-		if layer == None: return
-		for i in range(0,len(layer.scene)):
-			s = layer.scene[i]
-			if nth >= s.start and nth <= s.end:
-				if nth == s.start: return
-				newscene = Scene(DuplicateNode(s.node),nth,s.end)
-				newscene.node.setId(self.newID())
-				layer.scene.insert(i+1,newscene)
-				layer.scene[i].end = nth-1
-				btn = self.newCell('start.png')
-				btn.nScene = nth
-				btn.layer = layer
-				btn.nLayer = y
-				self.grid.remove(self.last_cell)
-				self.grid.attach(btn, x,x+1,y,y+1,0,0,0,0)
-				return
-			pass
-		
-		if len(layer.scene) > 0:
-			last = nth
-			lastscene = None
-			for s in layer.scene:
-				if s.end < nth and last < s.end:
-					last = s.end
-					lastscene = s
-					pass
-				pass
-			
-			for x in range(last+1, nth):
-				btn = self.newCell('fill.png')
-				btn.nScene = x
-				btn.layer = layer.node.getId()
-				btn.nLayer = y
-				self.grid.attach(btn, x, x+1, y , y+1,0,0,0,0)
-				pass
-			
-			if lastscene == None:
-				node = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scene')
-				node.setId(self.newID())
-				newscene = Scene(node,nth,nth)
-			else:
-				lastscene.end = nth-1
-				newscene = Scene(DuplicateNode(lastscene.node),nth,nth)
-				newscene.node.setId(self.newID())
-				pass
-			
-			layer.scene.append(newscene)
-			btn = self.newCell('start.png')
-			x = self.last_cell.nScene
-			y = self.last_cell.nLayer
+	"""
+	nth = self.last_cell.nScene
+	layer = self.getLayer(self.last_cell.layer)
+	x = self.last_cell.nScene
+	y = self.last_cell.nLayer
+	if layer == None: return
+	for i in range(0,len(layer.scene)):
+	    s = layer.scene[i]
+	    if nth >= s.start and nth <= s.end:
+		if nth == s.start: return
+		newscene = Scene(DuplicateNode(s.node),nth,s.end)
+		newscene.node.setId(self.newID())
+		layer.scene.insert(i+1,newscene)
+		layer.scene[i].end = nth-1
+		btn = self.newCell('start.png')
+		btn.nScene = nth
+		btn.layer = layer
+		btn.nLayer = y
+		self.grid.remove(self.last_cell)
+		self.grid.attach(btn, x,x+1,y,y+1,0,0,0,0)
+		return
+	    pass
+	
+	if len(layer.scene) > 0:
+	    last = nth
+	    lastscene = None
+	    for s in layer.scene:
+		if s.end < nth and last < s.end:
+		    last = s.end
+		    lastscene = s
+		    pass
+		pass
+	    
+	    for x in range(last+1, nth):
+		btn = self.newCell('fill.png')
+		btn.nScene = x
+		btn.layer = layer.node.getId()
+		btn.nLayer = y
+		self.grid.attach(btn, x, x+1, y , y+1,0,0,0,0)
+		pass
+	    
+	    if lastscene == None:
+		node = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scene')
+		node.setId(self.newID())
+		newscene = Scene(node,nth,nth)
+	    else:
+		lastscene.end = nth-1
+		newscene = Scene(DuplicateNode(lastscene.node),nth,nth)
+		newscene.node.setId(self.newID())
+		pass
+	    
+	    layer.scene.append(newscene)
+	    btn = self.newCell('start.png')
+	    x = self.last_cell.nScene
+	    y = self.last_cell.nLayer
+	    btn.nScene = nth
+	    btn.layer = layer.node.getId()
+	    btn.nLayer = y
+	    self.grid.attach(btn, x, x+1, y, y+1,0,0,0,0)
+	else:
+	    # This is the first scene in the layer
+	    node = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scene')
+	    node.repr.setId(self.newID())
+	    newscene = Scene(node,nth,nth)
+	    layer.scene.append(newscene)
+	    btn = self.newCell('start.png')
+	    btn.nScene = nth
+	    btn.layer = layer.node.getId()
+	    btn.nLayer = y
+	    self.grid.attach(btn, x, x+1, y, y+1,0,0,0,0)
+	    pass
+	pass
+    
+
+    def removeKeyScene(self):
+	nth = self.last_cell.nScene
+	try:
+	    layer = self.getLayer(self.last_cell.layer)
+	except:
+	    return
+	x = self.last_cell.nScene
+	y = self.last_cell.nLayer
+	for i in range(0,len(layer.scene)):
+	    s = layer.scene[i]
+	    if nth == s.start:
+		if i == 0:
+		    for j in range(s.start,s.end+1):
+			btn = self.newCell('empty.png')
 			btn.nScene = nth
-			btn.layer = layer.node.getId()
+			btn.layer = layer
 			btn.nLayer = y
-			self.grid.attach(btn, x, x+1, y, y+1,0,0,0,0)
+			self.grid.attach(btn, j,j+1,y,y+1,0,0,0,0)
+			pass
+		    layer.scene.remove(s)
 		else:
-			# This is the first scene in the layer
-			node = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scene')
-			node.repr.setId(self.newID())
-			newscene = Scene(node,nth,nth)
-			layer.scene.append(newscene)
-			btn = self.newCell('start.png')
-			btn.nScene = nth
-			btn.layer = layer.node.getId()
-			btn.nLayer = y
-			self.grid.attach(btn, x, x+1, y, y+1,0,0,0,0)
-			pass
-		pass
-	
+		    if s.start == layer.scene[i-1].end+1:
+			# If the start of the delete scene segment is the end of the last scene segmenet, convert all scenes in the deleted
+			# scene segmenet to the last one
+			layer.scene[i-1].end = s.end
+			layer.scene.remove(s)
+			btn = self.newCell('fill.png')
 
-	def removeKeyScene(self):
-		nth = self.last_cell.nScene
-		try:
-			layer = self.getLayer(self.last_cell.layer)
-		except:
-			return
-		x = self.last_cell.nScene
-		y = self.last_cell.nLayer
-		for i in range(0,len(layer.scene)):
-			s = layer.scene[i]
-			if nth == s.start:
-				if i == 0:
-					for j in range(s.start,s.end+1):
-						btn = self.newCell('empty.png')
-						btn.nScene = nth
-						btn.layer = layer
-						btn.nLayer = y
-						self.grid.attach(btn, j,j+1,y,y+1,0,0,0,0)
-						pass
-					layer.scene.remove(s)
-				else:
-					if s.start == layer.scene[i-1].end+1:
-						# If the start of the delete scene segment is the end of the last scene segmenet, convert all scenes in the deleted
-						# scene segmenet to the last one
-						layer.scene[i-1].end = s.end
-						layer.scene.remove(s)
-						btn = self.newCell('fill.png')
+			btn.nScene = nth
+			btn.layer = layer
+			btn.nLayer = y
+			self.grid.attach(btn, x,x+1,y,y+1,0,0,0,0)
+		    else:
+			# Convert all scenes into empty cell
+			layer.scene.remove(s)
+			for j in range(s.start,s.end+1):
+			    btn = self.newCell('empty.png')
+			    btn.nScene = nth
+			    btn.layer = layer
+			    btn.nLayer = y
+			    self.grid.attach(btn, j,j+1,y,y+1,0,0,0,0)
+			    pass
+			pass
+		    pass
+		return
+	    pass
+	pass
 
-						btn.nScene = nth
-						btn.layer = layer
-						btn.nLayer = y
-						self.grid.attach(btn, x,x+1,y,y+1,0,0,0,0)
-					else:
-						# Convert all scenes into empty cell
-						layer.scene.remove(s)
-						for j in range(s.start,s.end+1):
-							btn = self.newCell('empty.png')
-							btn.nScene = nth
-							btn.layer = layer
-							btn.nLayer = y
-							self.grid.attach(btn, j,j+1,y,y+1,0,0,0,0)
-							pass
-						pass
-					pass
-				return
-			pass
-		pass
-
-	def extendScene(self):
-		nth = self.last_cell.nScene
-		try:
-			layer = self.getLayer(self.last_cell.layer)
-		except:
-			traceback.print_exc()
-			return
-		x = self.last_cell.nScene
-		y = self.last_cell.nLayer
-		if layer == None:
-		    return
+    def extendScene(self):
+	nth = self.last_cell.nScene
+	try:
+	    layer = self.getLayer(self.last_cell.layer)
+	except:
+	    traceback.print_exc()
+	    return
+	x = self.last_cell.nScene
+	y = self.last_cell.nLayer
+	if layer == None:
+	    return
 
-		for i in range(0,len(layer.scene)-1):
-			s = layer.scene[i]
-			if nth >= layer.scene[i].start and nth <= layer.scene[i].end:
-				return
-			pass
-
-		for i in range(0,len(layer.scene)-1):
-			s = layer.scene[i]
-			if nth >= layer.scene[i].start and nth < layer.scene[i+1].start:
-				for j in range(layer.scene[i].end+1, nth+1):
-					btn = self.newCell('fill.png')
-					btn.nScene = nth
-					btn.nLayer = y
-					btn.layer = self.last_cell.layer
-					self.grid.attach(btn, j,j+1,y,y+1,0,0,0,0)
-				layer.scene[i].end = nth
-				return
-			pass
-		if len(layer.scene) > 0 and nth > layer.scene[len(layer.scene)-1].end:
-			for j in range(layer.scene[len(layer.scene)-1].end+1, nth+1):
-				btn = self.newCell('fill.png')
-				btn.nScene = nth
-				btn.nLayer = y
-				btn.layer = self.last_cell.layer
-				self.grid.attach(btn, j,j+1,y,y+1,0,0,0,0)
-				pass
-			layer.scene[len(layer.scene)-1].end = nth
-			pass
-		pass
-	
-	def setCurrentScene(self,nth):
-		self.current = nth
-		for layer in self.layer:
-			for s in layer.scene:
-				if nth >= s.start and nth <= s.end:
-					s.node.repr.setAttribute("style","",True)
-					#print "Put the elemenets out"
-					layer.nodes = []
-
-					#for o in s.node:
-						#print "    ",o.tag
-					#	layer.nodes.append(o)
-					#for o in s.node:
-					#	s.node.remove(o)
-				else:
-					s.node.repr.setAttribute("style","display:none",True)
-					pass
-				pass
-			pass
-		pass
-	
-	def generate(self):
-		newdoc = deepcopy(self.document)
-		root = newdoc.getroot()
-		has_scene = False
-		for n in root:
-			if n.tag == '{http://www.w3.org/2000/svg}metadata':
-				for nn in n:
-					if nn.tag == '{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scenes':
-						nn.clear()
-						nn.set("current", "%d" % self.current)
-						scenes = []
-						for l in self.layer:
-							for s in l.scene:
-								id = s.node.get("id")
-								scene = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scene')
-								scene.set("ref", id)
-								if s.start == s.end:
-									scene.set("start", "%d" % s.start)
-								else:
-									scene.set("start", "%d" % s.start)
-									scene.set("end", "%d" % s.end)
-									pass
+	for i in range(0,len(layer.scene)-1):
+	    s = layer.scene[i]
+	    if nth >= layer.scene[i].start and nth <= layer.scene[i].end:
+		return
+	    pass
 
-								scenes.append(scene)
-								pass
-							pass
-						for s in scenes:
-							nn.append(s)
-							pass
-						has_scene = True
-						pass
-					pass
-				if has_scene == False:
-					scenes = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scenes')
-					scenes.set("current","%d" % self.current)
-					for l in self.layer:
-						for s in l.scene:
-							scene = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scene')
-							scene.set("ref", s.node.get("id"))
-							if s.start == s.end:
-								scene.set("start", "%d" % s.start)
-							else:
-								scene.set("start", "%d" % s.start)
-								scene.set("end", "%d" % s.end)
-								pass
-							scenes.append(scene)
-							pass
-						pass
-					n.append(scenes)
-			if n.tag ==  '{http://www.w3.org/2000/svg}g':
-				root.remove(n)
-				pass
+	for i in range(0,len(layer.scene)-1):
+	    s = layer.scene[i]
+	    if nth >= layer.scene[i].start and nth < layer.scene[i+1].start:
+		for j in range(layer.scene[i].end+1, nth+1):
+		    btn = self.newCell('fill.png')
+		    btn.nScene = nth
+		    btn.nLayer = y
+		    btn.layer = self.last_cell.layer
+		    self.grid.attach(btn, j,j+1,y,y+1,0,0,0,0)
+		    layer.scene[i].end = nth
+		    return
+		pass
+	    if len(layer.scene) > 0 and nth > layer.scene[len(layer.scene)-1].end:
+		for j in range(layer.scene[len(layer.scene)-1].end+1, nth+1):
+		    btn = self.newCell('fill.png')
+		    btn.nScene = nth
+		    btn.nLayer = y
+		    btn.layer = self.last_cell.layer
+		    self.grid.attach(btn, j,j+1,y,y+1,0,0,0,0)
+		    pass
+		layer.scene[len(layer.scene)-1].end = nth
+		pass
+	    pass
+	pass
+    
+    def setCurrentScene(self,nth):
+	self.current = nth
+	for layer in self.layer:
+	    for s in layer.scene:
+		if nth >= s.start and nth <= s.end:
+		    s.node.repr.setAttribute("style","",True)
+			# print "Put the elemenets out"
+			layer.nodes = []
+			
+			# for o in s.node:
+			#        print "    ",o.tag
+			#	layer.nodes.append(o)
+			# for o in s.node:
+			#	s.node.remove(o)
+		    else:
+			s.node.repr.setAttribute("style","display:none",True)
 			pass
-		
-		for l in self.layer:
-			# Duplicate all attribute of the layer
-			lnode = etree.Element("{http://www.w3.org/2000/svg}g")
-			for a,v in l.node.attrib.items():
-				lnode.set(a,v)
-				pass
-			for n in l.nodes:
-				lnode.append(n)
-				pass
-			root.append(lnode)
-			for s in l.scene:
-				snode = etree.Element("{http://www.w3.org/2000/svg}g")
-				for a,v in s.node.attrib.items():
-					snode.set(a,v)
-					pass
-				for n in s.node:
-					snode.append(deepcopy(n))
-					pass
-				lnode.append(snode)
-				pass
-			pass
-		self.document = newdoc
+		    pass
 		pass
-	
-	def newCell(self,file):
-		img = gtk.Image()
-		img.set_from_file(file)
-		btn = gtk.EventBox()
-		btn.add(img)
-		btn.connect("button_press_event", self.cellSelect)
-		btn.modify_bg(gtk.STATE_NORMAL, btn.get_colormap().alloc_color("gray"))
-		return btn
+	    pass
+	pass
 	
-	def showGrid(self):
-		max = 0
-		for layer in self.layer:
-			for s in layer.scene:
-				if s.end > max:
-					max = s.end
-					pass
-				pass
-			pass
-		max = 50
+    def generate(self):
+	newdoc = deepcopy(self.document)
+	root = newdoc.getroot()
+	has_scene = False
+	for n in root:
+	    if n.tag == '{http://www.w3.org/2000/svg}metadata':
+		for nn in n:
+		    if nn.tag == '{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scenes':
+			nn.clear()
+			nn.set("current", "%d" % self.current)
+			scenes = []
+			for l in self.layer:
+			    for s in l.scene:
+				id = s.node.get("id")
+				scene = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scene')
+				scene.set("ref", id)
+				if s.start == s.end:
+				    scene.set("start", "%d" % s.start)
+				else:
+				    scene.set("start", "%d" % s.start)
+				    scene.set("end", "%d" % s.end)
+				    pass
 
-		self.grid = gtk.Table(len(self.layer)+1, 50)
-		self.scrollwin = gtk.ScrolledWindow()
-		self.scrollwin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
-		self.scrollwin.add_with_viewport(self.grid)
-		self.scrollwin.set_size_request(-1,150)
-		for i in range(1,max):
-			self.grid.attach(gtk.Label('%d'% i), i,i+1,0,1,0,0,0,0)
+				scenes.append(scene)
+				pass
+			    pass
+			for s in scenes:
+			    nn.append(s)
+			    pass
+			has_scene = True
 			pass
-		for i in range(1,len(self.layer)+1):
-			print "Layer", i
-			l = self.layer[i-1]
-			#self.grid.attach(gtk.Label(l.node.get('{http://www.inkscape.org/namespaces/inkscape}label')), 0, 1, i, i+1,0,0,10,0)
+		    pass
+		if has_scene == False:
+		    scenes = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scenes')
+		    scenes.set("current","%d" % self.current)
+		    for l in self.layer:
 			for s in l.scene:
-				btn = self.newCell('start.png')
-				btn.nScene = s.start
-				btn.layer = l.node.getId()
-				btn.nLayer = i
-
-				self.grid.attach(btn, s.start, s.start+1, i, i+1,0,0,0,0)
-				for j in range(s.start+1,s.end+1):
-					btn = self.newCell('fill.png')
-					self.grid.attach(btn, j, j+1, i , i+1,0,0,0,0)
-					btn.modify_bg(gtk.STATE_NORMAL, btn.get_colormap().alloc_color("gray"))
-					btn.nScene = j
-					btn.layer = l.node.getId()
-					btn.nLayer = i
-					pass
-				pass
-			if len(l.scene) == 0:
-				start = 0
-			else:
-				start = l.scene[len(l.scene)-1].end
+			    scene = etree.Element('{http://madbutterfly.sourceforge.net/DTD/madbutterfly.dtd}scene')
+			    scene.set("ref", s.node.get("id"))
+			    if s.start == s.end:
+				scene.set("start", "%d" % s.start)
+			    else:
+				scene.set("start", "%d" % s.start)
+				scene.set("end", "%d" % s.end)
 				pass
-			
-			for j in range(start,max):
-				btn = self.newCell('empty.png')
-				self.grid.attach(btn, j+1, j+2,i,i+1,0,0,0,0)
-				btn.modify_bg(gtk.STATE_NORMAL, btn.get_colormap().alloc_color("gray"))
-				btn.nScene = j+1
-				btn.layer = l.node.getId()
-				btn.nLayer = i
-				pass
+			    scenes.append(scene)
+			    pass
 			pass
-		self.last_cell = None
+		    n.append(scenes)
+		    pass
 		pass
+	    if n.tag ==  '{http://www.w3.org/2000/svg}g':
+		root.remove(n)
+		pass
+	    pass
 	
-	def cellSelect(self, cell, data):
-		if self.last_cell:
-			self.last_cell.modify_bg(gtk.STATE_NORMAL, self.last_cell.get_colormap().alloc_color("gray"))
-			pass
-			
-		self.last_cell = cell
-		cell.modify_bg(gtk.STATE_NORMAL, cell.get_colormap().alloc_color("green"))
+	for l in self.layer:
+	    # Duplicate all attribute of the layer
+	    lnode = etree.Element("{http://www.w3.org/2000/svg}g")
+	    for a,v in l.node.attrib.items():
+		lnode.set(a,v)
+		pass
+	    for n in l.nodes:
+		lnode.append(n)
+		pass
+	    root.append(lnode)
+	    for s in l.scene:
+		snode = etree.Element("{http://www.w3.org/2000/svg}g")
+		for a,v in s.node.attrib.items():
+		    snode.set(a,v)
+		    pass
+		for n in s.node:
+		    snode.append(deepcopy(n))
+		    pass
+		lnode.append(snode)
 		pass
-		
-	def doEditScene(self,w):
-		self.setCurrentScene(self.last_cell.nScene)
-		pass
+	    pass
+	self.document = newdoc
+	pass
 	
-	def doInsertKeyScene(self,w):
-		#self.insertKeyScene()
-		#self.grid.show_all()
-		return
+    def newCell(self,file):
+	img = gtk.Image()
+	img.set_from_file(file)
+	btn = gtk.EventBox()
+	btn.add(img)
+	btn.connect("button_press_event", self.cellSelect)
+	btn.modify_bg(gtk.STATE_NORMAL, btn.get_colormap().alloc_color("gray"))
+	return btn
+    
+    def showGrid(self):
+	max = 0
+	for layer in self.layer:
+	    for s in layer.scene:
+		if s.end > max:
+		    max = s.end
+		    pass
+		pass
+	    pass
+	max = 50
 
-	def doRemoveScene(self,w):
-		return
-		self.removeKeyScene()
-		self.grid.show_all()
-		self.generate()
+	self.grid = gtk.Table(len(self.layer)+1, 50)
+	self.scrollwin = gtk.ScrolledWindow()
+	self.scrollwin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
+	self.scrollwin.add_with_viewport(self.grid)
+	self.scrollwin.set_size_request(-1,150)
+	for i in range(1,max):
+	    self.grid.attach(gtk.Label('%d'% i), i,i+1,0,1,0,0,0,0)
+	    pass
+	for i in range(1,len(self.layer)+1):
+	    print "Layer", i
+	    l = self.layer[i-1]
+			#self.grid.attach(gtk.Label(l.node.get('{http://www.inkscape.org/namespaces/inkscape}label')), 0, 1, i, i+1,0,0,10,0)
+	    for s in l.scene:
+		btn = self.newCell('start.png')
+		btn.nScene = s.start
+		btn.layer = l.node.getId()
+		btn.nLayer = i
+
+		self.grid.attach(btn, s.start, s.start+1, i, i+1,0,0,0,0)
+		for j in range(s.start+1,s.end+1):
+		    btn = self.newCell('fill.png')
+		    self.grid.attach(btn, j, j+1, i , i+1,0,0,0,0)
+		    btn.modify_bg(gtk.STATE_NORMAL, btn.get_colormap().alloc_color("gray"))
+		    btn.nScene = j
+		    btn.layer = l.node.getId()
+		    btn.nLayer = i
+		    pass
 		pass
-	
-	def doExtendScene(self,w):
-		self.extendScene()
-		self.grid.show_all()
+	    if len(l.scene) == 0:
+		start = 0
+	    else:
+		start = l.scene[len(l.scene)-1].end
 		pass
+	    
+	    for j in range(start,max):
+		btn = self.newCell('empty.png')
+		self.grid.attach(btn, j+1, j+2,i,i+1,0,0,0,0)
+		btn.modify_bg(gtk.STATE_NORMAL, btn.get_colormap().alloc_color("gray"))
+		btn.nScene = j+1
+		btn.layer = l.node.getId()
+		btn.nLayer = i
+		pass
+	    pass
+	self.last_cell = None
+	pass
+    
+    def cellSelect(self, cell, data):
+	if self.last_cell:
+	    self.last_cell.modify_bg(gtk.STATE_NORMAL, self.last_cell.get_colormap().alloc_color("gray"))
+	    pass
 	
-	def addButtons(self,hbox):
-		btn = gtk.Button('Edit')
-		btn.connect('clicked', self.doEditScene)
-		hbox.pack_start(btn,expand=False,fill=False)
-		btn = gtk.Button('Insert Key')
-		btn.connect('clicked',self.doInsertKeyScene)
-		hbox.pack_start(btn,expand=False,fill=False)
-		btn=gtk.Button('Remove Key')
-		btn.connect('clicked', self.doRemoveScene)
-		hbox.pack_start(btn,expand=False,fill=False)
-		btn=gtk.Button('Extend scene')
-		btn.connect('clicked', self.doExtendScene)
-		hbox.pack_start(btn,expand=False,fill=False)
-		pass
-	
-	def onQuit(self, event):
-		self.OK = False
-		gtk.main_quit()
-		pass
-	
-	def onOK(self,event):
-		self.OK = True
-		gtk.main_quit()
-		pass
+	self.last_cell = cell
+	cell.modify_bg(gtk.STATE_NORMAL, cell.get_colormap().alloc_color("green"))
+	pass
+    
+    def doEditScene(self,w):
+	self.setCurrentScene(self.last_cell.nScene)
+	pass
+    
+    def doInsertKeyScene(self,w):
+	# self.insertKeyScene()
+	# self.grid.show_all()
+	return
+
+    def doRemoveScene(self,w):
+	# self.removeKeyScene()
+	# self.grid.show_all()
+	# self.generate()
+	return
 
-	def onConfirmDelete(self):
-		if self.scenemap == None:
-			vbox = gtk.VBox(False,0)
-			vbox.pack_start(gtk.Label('Convert the SVG into a MadButterfly SVG file. All current element will be delted'))
-			hbox = gtk.HBox(False,0)
-			self.button = gtk.Button('OK')
-			hbox.pack_start(self.button,expand=False,fill=False)
-			self.button.connect('clicked', self.onOK)
-			self.button = gtk.Button('Cancel')
-			hbox.pack_start(self.button,expand=False,fill=False)
-			self.button.connect("clicked", self.onQuit)
-			vbox.pack_start(hbox,expand=False,fill=False)
-			self.window.add(vbox)
-			self.window.show_all()
-			gtk.main()
-			self.window.remove(vbox)
-			pass
-		pass
+    
+    def doExtendScene(self,w):
+	self.extendScene()
+	self.grid.show_all()
+	pass
+    
+    def addButtons(self,hbox):
+	btn = gtk.Button('Edit')
+	btn.connect('clicked', self.doEditScene)
+	hbox.pack_start(btn,expand=False,fill=False)
+	btn = gtk.Button('Insert Key')
+	btn.connect('clicked',self.doInsertKeyScene)
+	hbox.pack_start(btn,expand=False,fill=False)
+	btn=gtk.Button('Remove Key')
+	btn.connect('clicked', self.doRemoveScene)
+	hbox.pack_start(btn,expand=False,fill=False)
+	btn=gtk.Button('Extend scene')
+	btn.connect('clicked', self.doExtendScene)
+	hbox.pack_start(btn,expand=False,fill=False)
+	pass
+    
+    def onQuit(self, event):
+	self.OK = False
+	gtk.main_quit()
+	pass
+    
+    def onOK(self,event):
+	self.OK = True
+	gtk.main_quit()
+	pass
 
-	def show(self):
-		self.OK = True
-		self.parseScene()
-		self.showGrid()
-		vbox = gtk.VBox(False,0)
-		self.desktop.getToplevel().child.child.pack_end(vbox,expand=False)
-		self.window = vbox
-		#self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
-		#self.window.connect("destroy", gtk.main_quit)
-		#self.window.set_position(gtk.WIN_POS_MOUSE)
-		if self.scenemap == None:
-			self.onConfirmDelete()
-			pass
-		if self.OK:
-			vbox = gtk.VBox(False,0)
-			self.window.pack_start(vbox,expand=False)
-			vbox.pack_start(self.scrollwin,expand=False)
-			self.vbox = vbox
-			hbox=gtk.HBox(False,0)
-			self.addButtons(hbox)
-			vbox.pack_start(hbox,expand=False)
-		else:
-			return
+    def onConfirmDelete(self):
+	if self.scenemap == None:
+	    vbox = gtk.VBox(False,0)
+	    vbox.pack_start(gtk.Label('Convert the SVG into a MadButterfly SVG file. All current element will be delted'))
+	    hbox = gtk.HBox(False,0)
+	    self.button = gtk.Button('OK')
+	    hbox.pack_start(self.button,expand=False,fill=False)
+	    self.button.connect('clicked', self.onOK)
+	    self.button = gtk.Button('Cancel')
+	    hbox.pack_start(self.button,expand=False,fill=False)
+	    self.button.connect("clicked", self.onQuit)
+	    vbox.pack_start(hbox,expand=False,fill=False)
+	    self.window.add(vbox)
+	    self.window.show_all()
+	    gtk.main()
+	    self.window.remove(vbox)
+	    pass
+	pass
 
-		#self.window.set_size_request(600,200)
+    def show(self):
+	self.OK = True
+	self.parseScene()
+	self.showGrid()
+	vbox = gtk.VBox(False,0)
+	self.desktop.getToplevel().child.child.pack_end(vbox,expand=False)
+	self.window = vbox
+	# self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
+	# self.window.connect("destroy", gtk.main_quit)
+	# self.window.set_position(gtk.WIN_POS_MOUSE)
+	if self.scenemap == None:
+	    self.onConfirmDelete()
+	    pass
+	if self.OK:
+	    vbox = gtk.VBox(False,0)
+	    self.window.pack_start(vbox,expand=False)
+	    vbox.pack_start(self.scrollwin,expand=False)
+	    self.vbox = vbox
+	    hbox=gtk.HBox(False,0)
+	    self.addButtons(hbox)
+	    vbox.pack_start(hbox,expand=False)
+	else:
+	    return
 
-		self.window.show_all()
-		pass
+	# self.window.set_size_request(600,200)
+
+	self.window.show_all()
 	pass
+    pass