patternselection.h

#ifndef PATTERNSELECTION_H
#define PATTERNSELECTION_H

#include "global.h"
#include "face.h"
#include "jsonelement.h"
#include <set>
#include <QGraphicsItemGroup>


class Pattern;
class QGraphicsScene;
class QGraphicsLineItem;
class PatternSelectionPolygon;
class PatternSelectionTransformation;
class PatternSelection : public base::json::JsonObject
{
  static constexpr int line_alpha_ = 200;
  static constexpr int fill_alpha_ = 150;
  static constexpr int mask_alpha_ = 200;

  Pattern *pattern_;
  QGraphicsScene *scene_;
  PolygonPoints polygon_pts_;
  cv::Point2f polygon_center_;
  float orientation_;
  bool flipped_;
  float scale_;
  std::set<base::he::Face*> selected_faces_;
  std::set<std::size_t> selected_faces_idxs_;
  PatternSelectionPolygon *polygon_item_;
  PatternSelectionTransformation *active_transformation_;

  static cv::Point2f polygonCenter(const PolygonPoints &polygon_pts);

public:
  PatternSelection(QGraphicsScene *scene, Pattern *pattern, const PolygonPoints &polygon_pts);
  PatternSelection(Pattern *pattern, const base::json::JsonObject::ptr json_obj);
  PatternSelection(const PatternSelection &pattern_selection);
  ~PatternSelection();

  const PolygonPoints polygonPoints() const;
  cv::Point2f polygonCenter() const;
  float orientation() const;
  Pattern *pattern() const;
  PatternSelectionPolygon *polygonItem() const;
  QGraphicsScene *scene() const;
  QPointF origin() const;
  bool flipped() const;
  const std::set<base::he::Face*> selectedFaces() const;

  /**
   * @brief Active Transformation
   * Returns the active PatternTransformation or nullptr if non exists.
   *
   * @return active_transformation
   */
  PatternSelectionTransformation *activeTransformation() const;
  void drawPolygon();

  void setScene(QGraphicsScene *scene);
  void setRotation(float angle);
  void setFlipped(bool flipped);
  void setScale(float scale);
  void setActiveTransformation(PatternSelectionTransformation *active_tranformation);
  void setSelectedFaces(const std::set<base::he::Face*> &selected_faces);

  void setActive();
  void setInactive();

  /**
   * @brief Set Selected Faces from Idxs
   * Sets the selected_faces points from selected_faces_idxs and the current
   * mesh loaded in MainWindow.
   */
  void setSelectedFacesFromIdxs();
};

#endif // PATTERNSELECTION_H