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3** Copyright (C) 2016 The Qt Company Ltd.
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29
30#ifndef DRILLDOWNCHART_H
31#define DRILLDOWNCHART_H
32
33#include <QtCharts/QChart>
34#include "drilldownseries.h"
35
36namespace QtCharts {
37class QBarCategoryAxis;
38class QValueAxis;
39}
40
41QT_CHARTS_USE_NAMESPACE
42
43//! [1]
44class DrilldownChart : public QChart
45{
46 Q_OBJECT
47public:
48 explicit DrilldownChart(QGraphicsItem *parent = nullptr, Qt::WindowFlags wFlags = {});
49
50 void changeSeries(DrilldownBarSeries *series);
51
52public Q_SLOTS:
53 void handleClicked(int index, QBarSet *barset);
54
55private:
56 DrilldownBarSeries *m_currentSeries;
57 QBarCategoryAxis *m_axisX;
58 QValueAxis *m_axisY;
59};
60//! [1]
61
62#endif // DRILLDOWNCHART_H
63

source code of qtcharts/examples/charts/stackedbarchartdrilldown/drilldownchart.h