Filter on an array of columns. Make search string lower case too.

gui/qt/main_window.py

@@ -1717,15 +1717,15 @@ class ElectrumWindow(QMainWindow):
     def do_search(self, t):
         i = self.tabs.currentIndex()
         if i == 0:
-            self.history_list.filter(t, 2)
+            self.history_list.filter(t, [1, 2, 3])  # Date, Description, Amount
         elif i == 1:
-            self.invoices_list.filter(t, 2)
+            self.invoices_list.filter(t, [0, 1, 2, 3]) # Date, Requestor, Description, Amount
         elif i == 2:
-            self.receive_list.filter(t, 3)
+            self.receive_list.filter(t, [0, 1, 2, 3, 4]) # Date, Account, Address, Description, Amount
         elif i == 3:
-            self.address_list.filter(t, 1)
+            self.address_list.filter(t, [0,1, 2])  # Address, Label, Balance
         elif i == 4:
-            self.contacts_list.filter(t, 0)
+            self.contacts_list.filter(t, [0, 1])  # Key, Value
 
 
     def new_contact_dialog(self):

gui/qt/util.py

@@ -340,9 +340,11 @@ class MyTreeWidget(QTreeWidget):
             for x in self.get_leaves(item):
                 yield x
 
-    def filter(self, p, column):
+    def filter(self, p, columns):
+        p = unicode(p).lower()
         for item in self.get_leaves(self.invisibleRootItem()):
-            item.setHidden(unicode(item.text(column)).lower().find(p) == -1)
+            item.setHidden(all([unicode(item.text(column)).lower().find(p) == -1
+                                for column in columns]))
 
 
 class ButtonsWidget(QWidget):