datasource.h Example File

openglseries/datasource.h

  /******************************************************************************
  **
  ** Copyright (C) 2015 The Qt Company Ltd.
  ** Contact: http://www.qt.io/licensing/
  **
  ** This file is part of the Qt Charts module.
  **
  ** $QT_BEGIN_LICENSE:COMM$
  **
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see http://www.qt.io/terms-conditions. For further
  ** information use the contact form at http://www.qt.io/contact-us.
  **
  ** $QT_END_LICENSE$
  **
  ******************************************************************************/

  #ifndef DATASOURCE_H
  #define DATASOURCE_H

  #include <QtCore/QObject>
  #include <QtCharts/QXYSeries>
  #include <QtWidgets/QLabel>
  #include <QtCore/QElapsedTimer>
  #include <QtCore/QTimer>

  QT_CHARTS_USE_NAMESPACE

  class DataSource : public QObject
  {
      Q_OBJECT
  public:
      explicit DataSource(QObject *parent = 0);

      void startUpdates(const QList<QXYSeries *> &seriesList, QLabel *fpsLabel);

  public slots:
      void generateData(int seriesCount, int rowCount, int colCount);
      void update(QAbstractSeries *series, int seriesIndex);
      void handleSceneChanged();
      void updateAllSeries();

  private:
      QVector<QVector<QVector<QPointF> > > m_data;
      int m_index;
      QList<QXYSeries *> m_seriesList;
      QLabel *m_fpsLabel;
      QElapsedTimer m_fpsTimer;
      QTimer m_dataUpdater;
  };

  #endif // DATASOURCE_H