view.h Example File

callout/view.h
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#ifndef VIEW_H #define VIEW_H #include <QtWidgets/QGraphicsView> #include <QtCharts/QChartGlobal> class QGraphicsScene; class QMouseEvent; class QResizeEvent; QT_CHARTS_BEGIN_NAMESPACE class QChart; QT_CHARTS_END_NAMESPACE class Callout; QT_CHARTS_USE_NAMESPACE class View: public QGraphicsView { Q_OBJECT public: View(QWidget *parent = 0); protected: void resizeEvent(QResizeEvent *event); void mouseMoveEvent(QMouseEvent *event); public slots: void keepCallout(); void tooltip(QPointF point, bool state); private: QGraphicsSimpleTextItem *m_coordX; QGraphicsSimpleTextItem *m_coordY; QChart *m_chart; Callout *m_tooltip; QList<Callout *> m_callouts; }; #endif