def on_line_change(self):
self.ui.comboBox_calle.clear()
if self.ui.comboBox_linea.currentText():
self.ui.statusbar.showMessage(u'Consultando el listado de calles. Espere, por favor...')
str_streets = ETR.get_line_streets(str(self.ui.comboBox_linea.currentText()))
self.ui.comboBox_calle.addItem('', -1)
for street in Util.generate_streets_list(str_streets)[0]:
self.ui.comboBox_calle.addItem(street['desc'], street['id'])
self.ui.statusbar.showMessage(u'Seleccione una calle')
