def setLineText(self, lineNum, text):
    if lineNum == 0 or lineNum == self.y or len(text) > (self.x - 5):
        return None
    else:
        temp = "|   "
        temp = temp + text

        while len(temp) != (self.x - 1):
            temp = temp + " "
        temp = temp + "|"

        self.lines[lineNum] = temp