added possibility to enabling/disabling sorting for the list

grum/dictlist/dictlistwidget.py

@@ -72,4 +72,27 @@ class DictListWidget(QListWidget):
             i.set_alarm(state)
 
 
+    def set_sort_key(self, sk):
+        for i in self.items.values():
+            i.set_sort_key(sk)
+
+        if sk is None:
+            self.setSortingEnabled(False)
+        else:
+            self.setSortingEnabled(True)
+            self.sortItems()
+
+
+    def disable_sorting(self):
+        # map order in dict to indices
+        mapping = enumerate(reversed(self.items.values()))
+        mapping = {item.text(): index for index, item in mapping}
+
+        def unsort(x):
+            return mapping[x.text()]
+
+        self.set_sort_key(unsort)
+        self.set_sort_key(None)
+
+