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#ifndef SIMULATORCAMERAEXPOSURECONTROL_H
#define SIMULATORCAMERAEXPOSURECONTROL_H

#include <qcameraexposurecontrol.h>

#include "simulatorcamerasettings.h"

QT_BEGIN_NAMESPACE

class SimulatorCameraSession;

/*
 * Control for exposure related camera operation.
 */
class SimulatorCameraExposureControl : public QCameraExposureControl
{
    Q_OBJECT

public:

    SimulatorCameraExposureControl(SimulatorCameraSession *session, QObject *parent = 0);
    ~SimulatorCameraExposureControl();

    // QCameraExposureControl
    // Exposure Mode
    QCameraExposure::ExposureMode exposureMode() const;
    void setExposureMode(QCameraExposure::ExposureMode mode);
    bool isExposureModeSupported(QCameraExposure::ExposureMode mode) const;

    // Metering Mode
    QCameraExposure::MeteringMode meteringMode() const;
    void setMeteringMode(QCameraExposure::MeteringMode mode);
    bool isMeteringModeSupported(QCameraExposure::MeteringMode mode) const;

    // Exposure Parameter
    bool isParameterSupported(ExposureParameter parameter) const;
    QVariant exposureParameter(ExposureParameter parameter) const;
    QCameraExposureControl::ParameterFlags exposureParameterFlags(ExposureParameter parameter) const;
    QVariantList supportedParameterRange(ExposureParameter parameter) const;
    bool setExposureParameter(ExposureParameter parameter, const QVariant& value);

    QString extendedParameterName(ExposureParameter parameter);

private Q_SLOTS: // Internal Slots
    void apertureChanged();
    void apertureRangeChanged();
    void shutterSpeedChanged();
    void isoSensitivityChanged();

private: // Internal - Implementing ExposureParameter
    // ISO Sensitivity
    int isoSensitivity() const;
    bool setManualIsoSensitivity(int iso);
    void setAutoIsoSensitivity();
    bool isIsoSensitivitySupported(const int iso) const;

    // Aperture
    qreal aperture() const;
    bool setManualAperture(qreal aperture);
    void setAutoAperture();
    bool isApertureSupported(const qreal aperture) const;

    // Shutter Speed
    qreal shutterSpeed() const;
    bool setManualShutterSpeed(qreal seconds);
    void setAutoShutterSpeed();
    bool isShutterSpeedSupported(const qreal seconds) const;

    // Exposure Compensation
    qreal exposureCompensation() const;
    bool setManualExposureCompensation(qreal ev);
    void setAutoExposureCompensation();
    bool isExposureCompensationSupported(const qreal ev) const;

private: // Data
    QCameraExposure::ExposureMode   mExposureMode;
    QCameraExposure::MeteringMode   mMeteringMode;
    QPointF mSpot;
    SimulatorCameraSession *mSession;
    SimulatorCameraSettings *mSettings;
};

QT_END_NAMESPACE

#endif // SIMULATORCAMERAEXPOSURECONTROL_H