ddtGraphicalElementRefLine.hpp

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#ifndef DDT_DATAVISUALISATION_DDTGRAPHCIS_GE_REF_LINE_HPP
#define DDT_DATAVISUALISATION_DDTGRAPHCIS_GE_REF_LINE_HPP
 
#include "ddt/ddtPointGrabber.hpp"
#include "ddt/ddtDatavisualisationUtils.hpp"
#include "ddt/ddtGraphicalElement.hpp"

class DdtGraphicalElementRefLine : public DdtGraphicalElement {
 public:
  explicit DdtGraphicalElementRefLine(
      const DdtGraphicalElementProperties element_properties, const double x1,
      const double y1, const double x2, const double y2);

  virtual ~DdtGraphicalElementRefLine();

  virtual void DrawElement(QPainter* painter) override;

  QRectF boundingRect() const override;

  int type() const override;

  void ReDrawLine(const QPointF start, const QPointF end);

  void RedrawPoints(QGraphicsScene* scene);

  QPointF Start() const;

  QPointF End() const;

  void ResetEventFilter();
 
 protected:
  double x1;

  double y1;

  double x2;

  double y2;

  PointGrabber* first_corner;

  PointGrabber* second_corner;

  PointGrabber* middle_point;

  bool installed_event_filters;
 
 private:
  virtual bool sceneEventFilter(QGraphicsItem* watched, QEvent* event) override;
  bool HandleEvent(PointGrabber* point, QEvent* event) const;
 
  QPointF location;
  QPointF drag_start;
  QPointF drag_end;
};
 
#endif  // DDT_DATAVISUALISATION_DDTGRAPHCIS_GE_REF_LINE_HPP