Retrieve CPU freq information and update the related widgets accordingly. 

00849                                :
        """ Retrieve CPU freq information and update the related widgets accordingly. """
        if not SHOW_CPUFREQ:
            return
        if len(self.powermanager.cpus) == 0:
            return

        policy = self.powermanager.getCpuPolicy()
        text = ""
        if self.freq_name.has_key(policy):
            policyString = unicode(self.freq_name[policy])
            text = i18nc("%1 is one of the CPU policies", "<b>CPU Frequency:</b> %1", policyString)
        else:
            text = i18nc("%1 is one of the CPU policies", "<b>CPU Frequency:</b> %1", policy)
        self.CpuMainLabel.setText(text)

        for cpu in self.powermanager.cpus:
            cpustate = self.powermanager.getCpuState(cpu)
            if not cpustate['online']:
                self.CpuProgress[cpu].setEnabled(False)
            else:
                self.CpuProgress[cpu].setEnabled(True)
                self.CpuProgress[cpu].setMaximum(cpustate['max'])
                self.CpuProgress[cpu].setValue(cpustate['cur'])
        if policy != "" or policy and self.cb_freq:
            self.policyActions[policy].setChecked(True)

    def changePoweredBrightness(self, level=None):