ddtOverlayRendering.hpp

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#ifndef DDT_DATAVISUALISATION_DDTGRAPHCIS_OVERLAYRENDERING_HPP
#define DDT_DATAVISUALISATION_DDTGRAPHCIS_OVERLAYRENDERING_HPP
 
#include <QApplication>
#include <QGraphicsItem>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QtMath>
 
#include "ddt/ddtCPLImageGraphicsItem.hpp"
#include "ddt/ddtFileBasedOverlay.hpp"
#include "ddt/ddtGraphicalElementProperties.hpp"
#include "ddt/ddtGraphicalOverlay.hpp"

class DdtOverlayRendering {
 public:
  explicit DdtOverlayRendering();

  virtual ~DdtOverlayRendering();

  virtual void RedrawOverlay(QGraphicsScene* scene,
                             const QString timestamp = "");

  void AddGraphicalElement(
      const DdtGraphicalElementProperties& element_properties, const double x1,
      const double y1, const double x2, const double y2,
      const QString draw_mode, const QString text = "");

  void RemoveGraphicalElements(const QString selection);

  bool SelectGraphicalElements(const double x1, const double y1,
                               const QGraphicsView* const view);

  void UnselectGraphicalElements();

  void SetCurrentScale(const float scale);

  void ChangeElementOverlayProperties(const DdtGraphicalElementProperties& properties);

  const DdtGraphicalElementProperties& GetLastSelectedElementProperties();

  DdtGraphicalOverlay* GetGraphicalOverlay();

  QStringList GetListOfElementIDs() const;

  void SetEditable(const bool editable);

  bool LoadOverlayFile(const QString overlay_file,
                       const std::string image_widget_name, QString& error_msg);

  void HideStaticOverlay() const;

  void ShowStaticOverlay() const;

  void ShowOverlayByObject(const QString object_name) const;

  void HideOverlayByObject(const QString object_name) const;

  void ShowOverlayByElement(const QString element_name) const;

  void HideOverlayByElement(const QString element_name) const;

  void SetTransformation(QTransform const& transform);
 
 protected:
  DdtGraphicalOverlay* graphics_overlay;

  DdtFileBasedOverlay* file_based_overlay;

  QList<DdtGraphicalElement*> selected_elements;

  float current_scale;
 
 private:
  void Init();

  int FindTextItem(QList<QGraphicsItem*> graphics_item_list, const double x1,
                   const double y1) const;
 
  void RedrawUserOverlay(QGraphicsScene* const scene, const QString timestamp);
 
  void RedrawFileBasedOverlay(QGraphicsScene* const scene);
};
 
#endif  // DDT_DATAVISUALISATION_DDTGRAPHCIS_OVERLAYRENDERING_HPP