customproxy.h Example File

graphicsview/embeddeddialogs/customproxy.h

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  #ifndef CUSTOMPROXY_H
  #define CUSTOMPROXY_H

  #include <QTimeLine>
  #include <QGraphicsProxyWidget>

  class CustomProxy : public QGraphicsProxyWidget
  {
      Q_OBJECT

  public:
      explicit CustomProxy(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);

      QRectF boundingRect() const Q_DECL_OVERRIDE;
      void paintWindowFrame(QPainter *painter, const QStyleOptionGraphicsItem *option,
                            QWidget *widget) Q_DECL_OVERRIDE;

  protected:
      void hoverEnterEvent(QGraphicsSceneHoverEvent *event) Q_DECL_OVERRIDE;
      void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) Q_DECL_OVERRIDE;
      bool sceneEventFilter(QGraphicsItem *watched, QEvent *event) Q_DECL_OVERRIDE;
      QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;

  private slots:
      void updateStep(qreal step);
      void stateChanged(QTimeLine::State);
      void zoomIn();
      void zoomOut();

  private:
      QTimeLine *timeLine;
      bool popupShown;
      QGraphicsItem *currentPopup;
  };

  #endif // CUSTOMPROXY_H