qt-everywhere-src-5.15.1/qtcharts/examples/charts/audio/widget.h

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#ifndef WIDGET_H
#define WIDGET_H

#include <QtWidgets/QWidget>
#include <QtCharts/QChartGlobal>

QT_CHARTS_BEGIN_NAMESPACE
class QLineSeries;
class QChart;
QT_CHARTS_END_NAMESPACE

QT_CHARTS_USE_NAMESPACE

class XYSeriesIODevice;

QT_BEGIN_NAMESPACE
class QAudioInput;
class QAudioDeviceInfo;
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    explicit Widget(const QAudioDeviceInfo &deviceInfo, QWidget *parent = nullptr);
    ~Widget();

private:
    XYSeriesIODevice *m_device = nullptr;
    QChart *m_chart;
    QLineSeries *m_series ;
    QAudioInput *m_audioInput = nullptr;
};

#endif // WIDGET_H