drilldownslice.cpp Example File | Qt Charts 5.12.11

- Qt 5.12
- Qt Charts
- Piechart Drilldown Example
- drilldownslice.cpp Example File
- Qt Charts | Commercial or GPLv3

# drilldownslice.cpp Example File

piechartdrilldown/drilldownslice.cpp

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     ** Contact: https://www.qt.io/licensing/
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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"