expand the Storage* stuff to include the required attributes..

[git-p4: depot-paths = "//depot/": change = 739]

DIDLLite.py

@@ -267,12 +267,57 @@ class MovieGenre(Genre):
 class StorageSystem(Container):
     klass = Container.klass + '.storageSystem'
 
+    total = -1
+    used = -1
+    free = -1
+    maxpartition = -1
+    medium = 'UNKNOWN'
+
+    def toElement(self):
+
+        root = Container.toElement(self)
+        
+        SubElement(root, 'upnp:storageTotal').text = str(self.total)
+        SubElement(root, 'upnp:storageUsed').text = str(self.used)
+        SubElement(root, 'upnp:storageFree').text = str(self.free)
+        SubElement(root, 'upnp:storageMaxPartition').text = str(self.maxpartition)
+        SubElement(root, 'upnp:storageMedium').text = self.medium
+
+        return root
+
 class StorageVolume(Container):
     klass = Container.klass + '.storageVolume'
 
+    total = -1
+    used = -1
+    free = -1
+    medium = 'UNKNOWN'
+
+    def toElement(self):
+
+        root = Container.toElement(self)
+        
+        SubElement(root, 'upnp:storageTotal').text = str(self.total)
+        SubElement(root, 'upnp:storageUsed').text = str(self.used)
+        SubElement(root, 'upnp:storageFree').text = str(self.free)
+        SubElement(root, 'upnp:storageMedium').text = self.medium
+
+        return root
+
 class StorageFolder(Container):
     klass = Container.klass + '.storageFolder'
 
+    used = -1
+
+    def toElement(self):
+
+        root = Container.toElement(self)
+        
+        if self.used is not None:
+            SubElement(root, 'upnp:storageUsed').text = str(self.used)
+
+        return root
+
 class DIDLElement(_ElementInterface):
     def __init__(self):
         _ElementInterface.__init__(self, 'DIDL-Lite', {})