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50
51#ifndef SATELLITEMODEL_H
52#define SATELLITEMODEL_H
53
54#include <QAbstractListModel>
55#include <QSet>
56#include <QtQml/qqml.h>
57#include <QtQml/QQmlParserStatus>
58#include <QtPositioning/QGeoSatelliteInfoSource>
59
60QT_FORWARD_DECLARE_CLASS(QTimer)
61QT_FORWARD_DECLARE_CLASS(QGeoSatelliteInfoSource)
62
63class SatelliteModel : public QAbstractListModel, public QQmlParserStatus
64{
65 Q_OBJECT
66 Q_PROPERTY(bool running READ running WRITE setRunning NOTIFY runningChanged)
67 Q_PROPERTY(bool satelliteInfoAvailable READ canProvideSatelliteInfo NOTIFY canProvideSatelliteInfoChanged)
68 Q_PROPERTY(int entryCount READ entryCount NOTIFY entryCountChanged)
69 Q_PROPERTY(bool singleRequestMode READ isSingleRequest WRITE setSingleRequest NOTIFY singleRequestChanged)
70 Q_INTERFACES(QQmlParserStatus)
71public:
72 explicit SatelliteModel(QObject *parent = 0);
73
74 enum {
75 IdentifierRole = Qt::UserRole + 1,
76 InUseRole,
77 SignalStrengthRole,
78 ElevationRole,
79 AzimuthRole
80 };
81
82 //From QAbstractListModel
83 int rowCount(const QModelIndex &parent) const;
84 QVariant data(const QModelIndex &index, int role) const;
85 QHash<int, QByteArray> roleNames() const;
86
87 //From QQmlParserStatus
88 void classBegin() {}
89 void componentComplete();
90
91 bool running() const;
92 void setRunning(bool isActive);
93
94 bool isSingleRequest() const;
95 void setSingleRequest(bool single);
96
97 int entryCount() const;
98
99 bool canProvideSatelliteInfo() const;
100
101signals:
102 void runningChanged();
103 void entryCountChanged();
104 void errorFound(int code);
105 void canProvideSatelliteInfoChanged();
106 void singleRequestChanged();
107
108public slots:
109 void clearModel();
110 void updateDemoData();
111
112private slots:
113 void error(QGeoSatelliteInfoSource::Error);
114 void satellitesInViewUpdated(const QList<QGeoSatelliteInfo> &infos);
115 void satellitesInUseUpdated(const QList<QGeoSatelliteInfo> &infos);
116
117private:
118 QGeoSatelliteInfoSource *source;
119 bool m_componentCompleted;
120 bool m_running;
121 bool m_runningRequested;
122 QList <QGeoSatelliteInfo> knownSatellites;
123 QSet<int> knownSatelliteIds;
124 QSet<int> satellitesInUse;
125 bool demo;
126 QTimer *timer;
127 bool isSingle;
128 bool singleRequestServed;
129
130};
131
132QML_DECLARE_TYPE(SatelliteModel)
133
134#endif // SATELLITEMODEL_H
135

source code of qtlocation/examples/positioning/satelliteinfo/satellitemodel.h