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    41 

    42 #ifndef QRADIOTUNER_H

    43 #define QRADIOTUNER_H

    44 

    45 #include <QtCore/qobject.h>

    46 

    47 #include "qmediaobject.h"

    48 #include "qmediaserviceprovider.h"

    49 

    50 #include <QPair>

    51 

    52 QT_BEGIN_NAMESPACE

    53 

    54 class QRadioTunerPrivate;

    55 class Q_MULTIMEDIA_EXPORT QRadioTuner : public QMediaObject

    56 {

    57     Q_OBJECT

    58     Q_PROPERTY(State state READ state NOTIFY stateChanged)

    59     Q_PROPERTY(Band band READ band WRITE setBand NOTIFY bandChanged)

    60     Q_PROPERTY(int frequency READ frequency WRITE setFrequency NOTIFY frequencyChanged)

    61     Q_PROPERTY(bool stereo READ isStereo NOTIFY stereoStatusChanged)

    62     Q_PROPERTY(StereoMode stereoMode READ stereoMode WRITE setStereoMode)

    63     Q_PROPERTY(int signalStrength READ signalStrength NOTIFY signalStrengthChanged)

    64     Q_PROPERTY(int volume READ volume WRITE setVolume NOTIFY volumeChanged)

    65     Q_PROPERTY(bool muted READ isMuted WRITE setMuted NOTIFY mutedChanged)

    66     Q_PROPERTY(bool searching READ isSearching NOTIFY searchingChanged)

    67     Q_ENUMS(State)

    68     Q_ENUMS(Band)

    69     Q_ENUMS(Error)

    70     Q_ENUMS(StereoMode)

    71 

    72 public:

    73     enum State { ActiveState, StoppedState };

    74     enum Band { AM, FM, SW, LW, FM2 };

    75     enum Error { NoError, ResourceError, OpenError, OutOfRangeError };

    76     enum StereoMode { ForceStereo, ForceMono, Auto };

    77 

    78     QRadioTuner(QObject *parent = 0, QMediaServiceProvider *provider = QMediaServiceProvider::defaultServiceProvider());

    79     ~QRadioTuner();

    80 

    81     bool isAvailable() const;

    82     QtMultimediaKit::AvailabilityError availabilityError() const;

    83 

    84     State state() const;

    85 

    86     Band band() const;

    87 

    88     bool isBandSupported(Band b) const;

    89 

    90     int frequency() const;

    91     int frequencyStep(Band band) const;

    92     QPair<int,int> frequencyRange(Band band) const;

    93 

    94     bool isStereo() const;

    95     void setStereoMode(QRadioTuner::StereoMode mode);

    96     StereoMode stereoMode() const;

    97 

    98     int signalStrength() const;

    99 

   100     int volume() const;

   101     bool isMuted() const;

   102 

   103     bool isSearching() const;

   104 

   105     Error error() const;

   106     QString errorString() const;

   107 

   108 public Q_SLOTS:

   109     void searchForward();

   110     void searchBackward();

   111     void cancelSearch();

   112 

   113     void setBand(Band band);

   114     void setFrequency(int frequency);

   115 

   116     void setVolume(int volume);

   117     void setMuted(bool muted);

   118 

   119     void start();

   120     void stop();

   121 

   122 Q_SIGNALS:

   123     void stateChanged(QRadioTuner::State state);

   124     void bandChanged(QRadioTuner::Band band);

   125     void frequencyChanged(int frequency);

   126     void stereoStatusChanged(bool stereo);

   127     void searchingChanged(bool searching);

   128     void signalStrengthChanged(int signalStrength);

   129     void volumeChanged(int volume);

   130     void mutedChanged(bool muted);

   131     void error(Error err);

   132 

   133 private:

   134     Q_DISABLE_COPY(QRadioTuner)

   135     Q_DECLARE_PRIVATE(QRadioTuner)

   136 };

   137 

   138 QT_END_NAMESPACE

   139 

   140 Q_DECLARE_METATYPE(QRadioTuner::State)

   141 Q_DECLARE_METATYPE(QRadioTuner::Band)

   142 Q_DECLARE_METATYPE(QRadioTuner::Error)

   143 Q_DECLARE_METATYPE(QRadioTuner::StereoMode)

   144 

   145 #endif  // QRADIOPLAYER_H