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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/View/Overlay/PolygonOverlay.h
//! @brief Defines class PolygonOverlay.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifndef BORNAGAIN_GUI_VIEW_OVERLAY_POLYGONOVERLAY_H
#define BORNAGAIN_GUI_VIEW_OVERLAY_POLYGONOVERLAY_H
#include "GUI/View/Overlay/IMaskOverlay.h"
#include <QPolygonF>
class PolygonItem;
//! This is a View of polygon mask (represented by PolygonItem) on GraphicsScene.
class PolygonOverlay : public IMaskOverlay {
Q_OBJECT
public:
explicit PolygonOverlay(PolygonItem* item, ColorMap* plot);
OverlayItem* parameterizedItem() const override;
void addOverlay(IOverlay* child);
bool isClosedPolygon();
QPointF lastAddedPoint() const;
QPainterPath shape() const override;
public slots:
bool closePolygonIfNecessary();
void onClosePolygonRequest(bool value);
private slots:
void update_view() override;
private:
void paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*) override;
QVariant itemChange(GraphicsItemChange change, const QVariant& value) override;
void mouseMoveEvent(QGraphicsSceneMouseEvent* event) override;
void update_polygon();
void update_points();
void setChildrenVisible(bool value);
bool makePolygonClosed();
PolygonItem* m_item;
QPolygonF m_polygon;
bool m_block_on_point_update;
bool m_close_polygon_request;
};
#endif // BORNAGAIN_GUI_VIEW_OVERLAY_POLYGONOVERLAY_H
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