Return the list to display in the UI.

def msg_curse(self, args=None, max_width=10):
        """Return the list to display in the UI."""
        # Init the return message
        ret = []

        # Only process if stats exist...
        if not self.stats or self.is_disable():
            return ret

        # Define the data: Bar (default behavor) or Sparkline
        sparkline_tag = False
        if self.args.sparkline and self.history_enable():
            data = Sparkline(max_width)
            sparkline_tag = data.available
        if not sparkline_tag:
            # Fallback to bar if Sparkline module is not installed
            data = Bar(max_width)

        # Build the string message
        if 'cpu_name' in self.stats and 'cpu_hz_current' in self.stats and 'cpu_hz' in self.stats:
            msg_name = '{} - '.format(self.stats['cpu_name'])
            msg_freq = '{:.2f}/{:.2f}GHz'.format(self._hz_to_ghz(self.stats['cpu_hz_current']),
                                                 self._hz_to_ghz(self.stats['cpu_hz']))
            if len(msg_name + msg_freq) - 6 <= max_width:
                ret.append(self.curse_add_line(msg_name))
            ret.append(self.curse_add_line(msg_freq))
            ret.append(self.curse_new_line())
        for key in ['cpu', 'mem', 'swap']:
            if key == 'cpu' and args.percpu:
                if sparkline_tag:
                    raw_cpu = self.get_raw_history(item='percpu', nb=data.size)
                for cpu_index, cpu in enumerate(self.stats['percpu']):
                    if sparkline_tag:
                        # Sparkline display an history
                        data.percents = [i[1][cpu_index]['total'] for i in raw_cpu]
                        # A simple padding in order to align metrics to the right
                        data.percents += [None] * (data.size - len(data.percents))
                    else:
                        # Bar only the last value
                        data.percent = cpu['total']
                    if cpu[cpu['key']] < 10:
                        msg = '{:3}{} '.format(key.upper(), cpu['cpu_number'])
                    else:
                        msg = '{:4} '.format(cpu['cpu_number'])
                    ret.extend(self._msg_create_line(msg, data, key))
                    ret.append(self.curse_new_line())
            else:
                if sparkline_tag:
                    # Sparkline display an history
                    data.percents = [i[1] for i in self.get_raw_history(item=key, nb=data.size)]
                    # A simple padding in order to align metrics to the right
                    data.percents += [None] * (data.size - len(data.percents))
                else:
                    # Bar only the last value
                    data.percent = self.stats[key]
                msg = '{:4} '.format(key.upper())
                ret.extend(self._msg_create_line(msg, data, key))
                ret.append(self.curse_new_line())

        # Remove the last new line
        ret.pop()

        # Return the message with decoration
        return ret