dialog: QuoteFillingDialog
GtkVBox(toplevel):
  GtkEventBox(place_holder, expand=True, fill=True): slave ListSlave is attached
    kiwi+ui+listdialog+ListContainer(listcontainer):
      ObjectList(expand=True, fill=True):
        column: title='Description', expand
        column: title='Quantity'
        column: title='Cost'
        column: title='Last Cost'
        column: title='Average Cost'
        row: u'Description', Decimal('1.000'), <currency $125>, <currency $125>, <currency $125>
      GtkVBox(fill=True):
        GtkButton(fill=True): 'gtk-add', hidden
        GtkButton(fill=True): 'gtk-remove', hidden, insensitive
        GtkButton(fill=True): 'gtk-edit', hidden, insensitive
