ocarina: Clean up image resize function

I now wrap the entire resize operation in a try / except block.
Hopefully this will help to catch some errors.  I also cleaned up my
"return early" conditions.

ocarina/body/image.py

@@ -7,29 +7,31 @@ from libsaria import sources
 def find_new_width(buf, new_h):
 	w = buf.get_width()
 	h = buf.get_height()
-	if new_h == 0:
-		return
-	if h == new_h:
-		return
 	if h == 0:
 		h = 1
-	return (float(w) / float(h)) * new_h
+	new_w = (float(w) / float(h)) * new_h
+	return int(new_w)
 
-def resize(img, new_h):
-	try:
-		buf = img.get_pixbuf()
-	except Exception, e:
-		return
+def _resize(img, new_h):
+	buf = img.get_pixbuf()
 	if buf == None:
 		return
 	new_w = find_new_width(buf, new_h)
-	if new_w == None:
-		return
-	buf = buf.scale_simple(int(new_w), int(new_h), gtk.gdk.INTERP_HYPER)
+	buf   = buf.scale_simple(new_w, new_h, gtk.gdk.INTERP_HYPER)
 	if buf == None:
 		return
 	img.set_from_pixbuf(buf)
 
+def resize(img, new_h):
+	if new_h == 0:
+		return
+	new_h = int(new_h)
+	try:
+		_resize(img, new_h)
+	except Exception, e:
+		print e
+
+
 
 class FileImage(gtk.Image):
 	def __init__(self):