Update viewer_utils.py:diar_diff(): fixed bug + added logging

s4d/gui/viewer_utils.py

+import logging
 import copy
 from s4d.diar import Diar, Segment
 from s4d.scoring import DER
@@ -93,23 +94,23 @@ def diar_diff(hyp, ref, match=True, inter=False, collar=25):
         ref.add_attribut('color', (0.6, 0.0, 0.0, 1.0))
     ref.pack()
 
-    diar = Diar()
-    diar.append_diar(hyp)
-    diar.append_diar(ref)
     der = DER(hyp, ref)
     der.confusion()
     assign, not_assign = der.assignment()
-    add_match(ref, hyp, assign, not_assign)
     if match:
         add_match(ref, hyp, assign, not_assign)
     else:
         add_prefix(ref, 'REF: ')
         add_prefix(hyp, 'HYP: ')
+        
+    diar = copy.deepcopy(ref)
+    diar.append_diar(hyp)
+    
     if inter:
-        print('append intersection')
+        logging.info('append intersection')
         diar.append_diar(add_intersection(ref, hyp, assign))
 
     if collar > 0:
-        print('append collar')
+        logging('append collar')
         add_collar(diar, collar)
     return diar
\ No newline at end of file