Qt 5.7 | Qt Charts | Donut Chart Breakdown Example | mainslice.cpp Example File

Qt 5.7.1 Reference Documentation

# mainslice.cpp Example File

donutbreakdown/mainslice.cpp

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      ** This file is part of the Qt Charts module of the Qt Toolkit.
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      #include "mainslice.h"

      QT_CHARTS_USE_NAMESPACE

      MainSlice::MainSlice(QPieSeries *breakdownSeries, QObject *parent)
          : QPieSlice(parent),
            m_breakdownSeries(breakdownSeries)
      {
          connect(this, SIGNAL(percentageChanged()), this, SLOT(updateLabel()));
      }

      QPieSeries *MainSlice::breakdownSeries() const
      {
          return m_breakdownSeries;
      }

      void MainSlice::setName(QString name)
      {
          m_name = name;
      }

      QString MainSlice::name() const
      {
          return m_name;
      }

      void MainSlice::updateLabel()
      {
          this->setLabel(QString("%1 %2%").arg(m_name).arg(percentage() * 100, 0, 'f', 2));
      }

      #include "moc_mainslice.cpp"