correctly set descending order (except for "sort by text")

grum/dictlist/dictlistwidget.py

@@ -72,19 +72,20 @@ class DictListWidget(QListWidget):
             i.set_alarm(state)
 
 
-    def set_sort_key(self, sk):
+    def set_sort_key(self, sk, reverse=True):
         DictListItem.set_sort_key(sk)
 
         if sk is None:
             self.setSortingEnabled(False)
         else:
             self.setSortingEnabled(True)
-            self.sortItems()
+            order = Qt.DescendingOrder if reverse else Qt.AscendingOrder
+            self.sortItems(order)
 
 
     def enable_sort_by_insertion_order(self):
         # map order in dict to indices
-        mapping = enumerate(reversed(self.items.values()))
+        mapping = enumerate(self.items.values())
         mapping = {item.text(): index for index, item in mapping}
 
         def unsort(x):
@@ -95,7 +96,11 @@ class DictListWidget(QListWidget):
 
 
     def enable_sort_by_text(self):
-        self.set_sort_key(lambda x: x.text())
+        self.set_sort_key(lambda x: x.text(), reverse=False)
+
+
+    def enable_sort_by_timestamp(self):
+        self.set_sort_key(lambda x: (x.timestamps.max(), x.text()))
 
 
     def disable_sorting(self):