(#406) No operation editor for will_import column

A NO_EDIT constant was added to the ``qt.conroller.table`` module.
When this is seen, the createEditor method will return None
(http://qt-project.org/forums/viewthread/9541).

qt/controller/import_/table.py

@@ -10,13 +10,13 @@
 from PyQt4.QtGui import QPixmap
 
 from qtlib.column import Column
-from ..table import Table
+from ..table import Table, NO_EDIT
 
 MIME_INDEXES = 'application/moneyguru.rowindexes'
 
 class ImportTable(Table):
     COLUMNS = [
-        Column('will_import', 20),
+        Column('will_import', 20, editor=NO_EDIT),
         Column('date', 80),
         Column('description', 90),
         Column('amount', 90, alignment=Qt.AlignRight),

qt/controller/table.py

@@ -15,6 +15,7 @@
 from ..support.date_edit import DateEdit
 from ..support.item_delegate import ItemDelegate
 
+NO_EDIT = 'no_edit'
 DATE_EDIT = 'date_edit'
 DESCRIPTION_EDIT = 'description_edit'
 PAYEE_EDIT = 'payee_edit'
@@ -51,6 +52,8 @@ def createEditor(self, parent, option, index):
         editType = column.editor
         if editType is None:
             return ItemDelegate.createEditor(self, parent, option, index)
+        elif editType == NO_EDIT:
+            return None
         elif editType == DATE_EDIT:
             return DateEdit(parent)
         elif editType in EDIT_TYPE2COMPLETABLE_EDIT: