ddtGraphicalElementRefLine.hpp

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// @copyright
// (c) Copyright ESO 2020
// All Rights Reserved
// ESO (eso.org) is an Intergovernmental Organization, and therefore special
// legal conditions apply.
//
// @file ddtGraphicalElementRefLine.hpp
// @brief DDT Graphics. Class for reference line elements
//
// Class for the Graphical Elements - Reference Line
//
// @author Carsten Mannel, CGI
// @since  2021/03/10
//
 
#ifndef DDT_DATAVISUALISATION_DDTGRAPHCIS_GE_REF_LINE_HPP
#define DDT_DATAVISUALISATION_DDTGRAPHCIS_GE_REF_LINE_HPP
 
#include "ddt/ddtCornergrabber.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);
 
  QRectF boundingRect() const;
 
  int type() const;
 
  void ReDrawLine(const QPointF start, const QPointF end);
 
  void RedrawCorners(QGraphicsScene* scene);
 
  QPointF Start() const;
 
  QPointF End() const;
 
  void ResetEventFilter();
 
 protected:
  double x1;
 
  double y1;
 
  double x2;
 
  double y2;
 
  CornerGrabber* corners[2];
 
  bool installed_event_filters;
 
 private:
  virtual bool sceneEventFilter(QGraphicsItem* watched, QEvent* event);
  bool HandleEvent(CornerGrabber* corner, QEvent* event) const;
 
  QPointF location;
  QPointF drag_start;
  QPointF drag_end;
};
 
#endif  // DDT_DATAVISUALISATION_DDTGRAPHCIS_GE_REF_LINE_HPP