Create border choice combo box

def _create_borderchoice_combo(self):
        """Create border choice combo box"""

        choices = [c[0] for c in self.border_toggles]
        self.borderchoice_combo = \
            _widgets.BorderEditChoice(self, choices=choices,
                                      style=wx.CB_READONLY, size=(50, -1))

        self.borderchoice_combo.SetToolTipString(
            _(u"Choose borders for which attributes are changed"))

        self.borderstate = self.border_toggles[0][0]

        self.AddControl(self.borderchoice_combo)

        self.Bind(wx.EVT_COMBOBOX, self.OnBorderChoice,
                  self.borderchoice_combo)

        self.borderchoice_combo.SetValue("AllBorders")