drilldownslice.cpp Example File

piechartdrilldown/drilldownslice.cpp
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 #include "drilldownslice.h"

 QT_CHARTS_USE_NAMESPACE

 DrilldownSlice::DrilldownSlice(qreal value, QString prefix, QAbstractSeries *drilldownSeries)
     : m_drilldownSeries(drilldownSeries),
       m_prefix(prefix)
 {
     setValue(value);
     updateLabel();
     setLabelFont(QFont("Arial", 8));
     connect(this, &DrilldownSlice::percentageChanged, this, &DrilldownSlice::updateLabel);
     connect(this, &DrilldownSlice::hovered, this, &DrilldownSlice::showHighlight);
 }

 DrilldownSlice::~DrilldownSlice()
 {

 }

 QAbstractSeries *DrilldownSlice::drilldownSeries() const
 {
     return m_drilldownSeries;
 }

 void DrilldownSlice::updateLabel()
 {
     QString label = m_prefix;
     label += " $";
     label += QString::number(this->value());
     label += ", ";
     label += QString::number(this->percentage() * 100, 'f', 1);
     label += "%";
     setLabel(label);
 }

 void DrilldownSlice::showHighlight(bool show)
 {
     setLabelVisible(show);
     setExploded(show);
 }

 #include "moc_drilldownslice.cpp"