private void RunWithCurrent_BT_Click(object sender, EventArgs e)
 {
     State = EmptyFormState.RUN_WITH_CURRENT;
 }
 private void StopLine_BT_Click(object sender, EventArgs e)
 {
     State = EmptyFormState.STOP_LINE;
 }
 private void InputMore_BT_Click(object sender, EventArgs e)
 {
     State = EmptyFormState.GET_MORE;
 }