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29
30#ifndef CHARTWIDGET_H
31#define CHARTWIDGET_H
32
33#include <QtWidgets/QHBoxLayout>
34#include <QtCharts/QChart>
35#include <QtCharts/QChartView>
36#include <QtCharts/QValueAxis>
37#include <QtCharts/QBarSeries>
38#include <QtCharts/QBarSet>
39#include <QtCore/QTimer>
40#include <QtCore/QElapsedTimer>
41
42QT_CHARTS_USE_NAMESPACE
43
44
45class ChartWidget : public QWidget
46{
47 Q_OBJECT
48
49public:
50 explicit ChartWidget(QWidget *parent = 0);
51 ~ChartWidget();
52
53public slots:
54 void handleTimeout();
55
56private:
57 void createChart();
58 void addSeriesToChart(QAbstractBarSeries *series);
59
60private:
61 QChart *m_chart;
62 QChartView *m_chartView;
63 QAbstractAxis *m_barAxis;
64 QAbstractAxis *m_valueAxis;
65 QVector<QAbstractBarSeries *> m_series;
66 QMap<const QAbstractBarSeries *, QVector<QBarSet *> > m_sets;
67 QTimer m_timer;
68 QElapsedTimer m_elapsedTimer;
69 QHBoxLayout *m_horizontalLayout;
70 int m_setCount;
71 int m_seriesCount;
72 qreal m_extraScroll;
73};
74
75#endif // CHARTWIDGET_H
76

source code of qtcharts/tests/manual/barcharttester/chart-widget.h