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#ifndef QSYSTEMBATTERYINFO_H
#define QSYSTEMBATTERYINFO_H

#include <QObject>
#include "qmobilityglobal.h"

QT_BEGIN_HEADER
QTM_BEGIN_NAMESPACE

class QSystemBatteryInfoPrivate;

class Q_SYSINFO_EXPORT QSystemBatteryInfo : public QObject
{
    Q_OBJECT

    Q_PROPERTY(int nominalCapacity READ nominalCapacity NOTIFY nominalCapacityChanged)
    Q_PROPERTY(int remainingCapacityPercent READ remainingCapacityPercent NOTIFY remainingCapacityPercentChanged)
    Q_PROPERTY(int remainingCapacity READ remainingCapacity NOTIFY remainingCapacityChanged)
    Q_PROPERTY(int voltage READ voltage CONSTANT)
    Q_PROPERTY(int remainingChargingTime READ remainingChargingTime NOTIFY remainingChargingTimeChanged)
    Q_PROPERTY(int currentFlow READ currentFlow  NOTIFY currentFlowChanged)
    Q_PROPERTY(int remainingCapacityBars READ remainingCapacityBars NOTIFY remainingCapacityBarsChanged)
    Q_PROPERTY(int maxBars READ maxBars CONSTANT)
    Q_PROPERTY(ChargerType chargerType READ chargerType NOTIFY chargerTypeChanged)
    Q_PROPERTY(ChargingState chargingState READ chargingState NOTIFY chargingStateChanged)
    Q_PROPERTY(EnergyUnit energyMeasurementUnit READ energyMeasurementUnit CONSTANT)
    Q_PROPERTY(BatteryStatus batteryStatus READ batteryStatus NOTIFY batteryStatusChanged)

    Q_ENUMS(BatteryStatus)
    Q_ENUMS(ChargerType)
    Q_ENUMS(ChargingState)
    Q_ENUMS(EnergyUnit)

public:
    explicit QSystemBatteryInfo(QObject *parent = 0);
    ~QSystemBatteryInfo();

    enum BatteryStatus {
        BatteryUnknown = -1,
        BatteryEmpty,
        BatteryCritical,
        BatteryVeryLow,
        BatteryLow,
        BatteryOk,
        BatteryFull
    };

    enum ChargingState {
        ChargingError = -1,
        NotCharging,
        Charging
    };

    enum ChargerType {
        UnknownCharger = -1,
        NoCharger,
        WallCharger,
        USBCharger,
        USB_500mACharger,
        USB_100mACharger,
        VariableCurrentCharger
    };

    enum EnergyUnit {
        UnitUnknown = -1,
        UnitmAh,
        UnitmWh
    };

    QSystemBatteryInfo::ChargerType chargerType() const;
    QSystemBatteryInfo::ChargingState chargingState() const;

    int nominalCapacity() const;
    int remainingCapacityPercent() const;
    int remainingCapacity() const;

    int voltage() const;
    int remainingChargingTime() const;
    int currentFlow() const;

    int remainingCapacityBars() const;
    int maxBars() const;
    QSystemBatteryInfo::BatteryStatus batteryStatus() const;
    QSystemBatteryInfo::EnergyUnit energyMeasurementUnit() const;

Q_SIGNALS:
    void batteryStatusChanged(QSystemBatteryInfo::BatteryStatus batteryStatus);

    void chargingStateChanged(QSystemBatteryInfo::ChargingState chargingState);
    void chargerTypeChanged(QSystemBatteryInfo::ChargerType chargerType);

    void nominalCapacityChanged(int cap);
    void remainingCapacityPercentChanged(int level);
    void remainingCapacityChanged(int level);

    void currentFlowChanged(int level);
    void remainingCapacityBarsChanged(int bars);
    void remainingChargingTimeChanged(int time);

private:
    QSystemBatteryInfoPrivate *d;

protected:
    void connectNotify(const char *signal);
    void disconnectNotify(const char *signal);
};

QTM_END_NAMESPACE
QT_END_HEADER

#endif // QSYSTEMBATTERYINFO_H
