drilldownslice.h Example File

piechartdrilldown/drilldownslice.h
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 #ifndef DRILLDOWNSLICE_H
 #define DRILLDOWNSLICE_H

 #include <QtCharts/QPieSlice>

 QT_CHARTS_BEGIN_NAMESPACE
 class QAbstractSeries;
 QT_CHARTS_END_NAMESPACE

 QT_CHARTS_USE_NAMESPACE

 class DrilldownSlice : public QPieSlice
 {
     Q_OBJECT

 public:
     DrilldownSlice(qreal value, QString prefix, QAbstractSeries *drilldownSeries);
     virtual ~DrilldownSlice();
     QAbstractSeries *drilldownSeries() const;

 public Q_SLOTS:
     void updateLabel();
     void showHighlight(bool show);

 private:
     QAbstractSeries *m_drilldownSeries;
     QString m_prefix;
 };

 #endif // DRILLDOWNSLICE_H