Create a set locked function for album art

We appear to already be locked when we get to the setter function.  I
was getting deadlocked when trying to do anything.  To fix this, I
made it so I can set images without needing the lock.

libsaria/path/lastfm.py

@@ -83,7 +83,7 @@ def set_artwork_tags(artist, album, path):
 	cached = cache[artist]
 	cached.delete("%s.jpg" % album)
 	file = cached.get("%s.jpg" % album, set_art_from_file, path)
-	libsaria.event.start("POSTGETART", file)
+	libsaria.event.start("POSTSETART", file)
 
 def get_artwork_id(id):
 	artist, album = libsaria.sources.get_attrs(id, "artist", "album")

ocarina/components/image.py

@@ -45,6 +45,7 @@ class AlbumArtImage(Image):
 		self.connect("button-press-event", self.clicked)
 		libsaria.event.invite("PRELOAD", self.preload)
 		libsaria.event.invite("POSTGETART", self.set)
+		libsaria.event.invite("POSTSETART", self.set_locked)
 
 	def preload(self, *args):
 		self.file = "images/ocarina.png"
@@ -59,9 +60,11 @@ class AlbumArtImage(Image):
 		return True
 
 	def set(self, file=None):
-		#print "attempting to enter"
 		gdk.threads_enter()
-		#print "entered"
+		self.set_locked(file)
+		gdk.threads_leave()
+
+	def set_locked(self, file=None):
 		for i in xrange(2):
 			self.file = file
 			try:
@@ -71,8 +74,6 @@ class AlbumArtImage(Image):
 			except:
 				pass
 			file = "images/ocarina.png"
-		#print "threads leaving"
-		gdk.threads_leave()
 
 	def set_height(self, new_h):
 		size = self.size_request()