Qt Reference Documentation

# pieslice.cpp Example File

declarative/tutorials/extending/chapter6-plugins/pieslice.cpp

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     #include "pieslice.h"

     #include <QPainter>

     PieSlice::PieSlice(QDeclarativeItem *parent)
         : QDeclarativeItem(parent)
     {
         // need to disable this flag to draw inside a QDeclarativeItem
         setFlag(QGraphicsItem::ItemHasNoContents, false);
     }

     QColor PieSlice::color() const
     {
         return m_color;
     }

     void PieSlice::setColor(const QColor &color)
     {
         m_color = color;
     }

     int PieSlice::fromAngle() const
     {
         return m_fromAngle;
     }

     void PieSlice::setFromAngle(int angle)
     {
         m_fromAngle = angle;
     }

     int PieSlice::angleSpan() const
     {
         return m_angleSpan;
     }

     void PieSlice::setAngleSpan(int angle)
     {
         m_angleSpan = angle;
     }

     void PieSlice::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
     {
         QPen pen(m_color, 2);
         painter->setPen(pen);
         painter->setRenderHints(QPainter::Antialiasing, true);
         painter->drawPie(boundingRect(), m_fromAngle * 16, m_angleSpan * 16);
     }