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29
30#ifndef DATASOURCE_H
31#define DATASOURCE_H
32
33#include <QtCore/QObject>
34#include <QtCharts/QXYSeries>
35#include <QtWidgets/QLabel>
36#include <QtCore/QElapsedTimer>
37#include <QtCore/QTimer>
38
39QT_CHARTS_USE_NAMESPACE
40
41const int maxSeriesCount = 10;
42
43class DataSource : public QObject
44{
45 Q_OBJECT
46public:
47 explicit DataSource(QObject *parent = 0);
48
49 void startUpdates(QList<QXYSeries *> &seriesList, QLabel *fpsLabel, int interval);
50
51public slots:
52 void generateData(int seriesIndex, int rowCount, int colCount);
53 void update(QXYSeries *series, int seriesIndex);
54 void handleSceneChanged();
55 void updateAllSeries();
56 void setInterval(int interval);
57
58private:
59 QVector<QVector<QVector<QPointF> > > m_data;
60 int m_index;
61 QList<QXYSeries *> *m_seriesList;
62 QLabel *m_fpsLabel;
63 QElapsedTimer m_fpsTimer;
64 QTimer m_dataUpdater;
65};
66
67#endif // DATASOURCE_H
68

source code of qtcharts/tests/manual/openglseriestest/datasource.h