Display battery temperature near battery percent

[iusmac]

Goal: 88% | 28 °С

<string name="cpu_temp">CPU: %tw_cpu_temp% &#xB0;C</string>

Where:
gui/battery.cpp:140

mBatteryPercentStr = mBatteryIcon == 0 ? DataManager::GetStrValue("tw_battery_charge") :
				DataManager::GetStrValue("tw_battery") + "%" ;

Get battery temp:

rolex:/# cat /sys/class/power_supply/battery/temp
293 # 293 / 10 = 29.3 °С

Try to bind to 'Show CPU temperature'

if (varName == "tw_cpu_temp")
{
    int tw_no_cpu_temp;
    GetValue("tw_no_cpu_temp", tw_no_cpu_temp);
    if (tw_no_cpu_temp == 1)
        return -1;

    string cpu_temp_file;
    static unsigned long convert_temp = 0;
    static time_t cpuSecCheck = 0;
    struct timeval curTime;
    string results;

    gettimeofday(&curTime, NULL);
    if (curTime.tv_sec > cpuSecCheck)
    {
#ifdef TW_CUSTOM_CPU_TEMP_PATH
        cpu_temp_file = EXPAND(TW_CUSTOM_CPU_TEMP_PATH);
        if (TWFunc::read_file(cpu_temp_file, results) != 0)
            return -1;
#else
        cpu_temp_file = "/sys/class/thermal/thermal_zone0/temp";
        if (TWFunc::read_file(cpu_temp_file, results) != 0)
            return -1;
#endif
        convert_temp = strtoul(results.c_str(), NULL, 0) / 1000;
        if (convert_temp <= 0)
            convert_temp = strtoul(results.c_str(), NULL, 0);
        if (convert_temp >= 150)
            convert_temp = strtoul(results.c_str(), NULL, 0) / 10;
        cpuSecCheck = curTime.tv_sec + 5;
    }
    value = TWFunc::to_string(convert_temp);
    return 0;
}