BuildingGraphicsItem.h

// SPDX-License-Identifier: LGPL-2.1-or-later
//
// SPDX-FileCopyrightText: 2011 Konstantin Oblaukhov <oblaukhov.konstantin@gmail.com>
//
 
#ifndef MARBLE_BUILDINGGRAPHICSITEM_H
#define MARBLE_BUILDINGGRAPHICSITEM_H
 
#include "AbstractGeoPolygonGraphicsItem.h"
#include "GeoDataCoordinates.h"
 
class QPointF;
 
namespace Marble
{
 
class MARBLE_EXPORT BuildingGraphicsItem : public AbstractGeoPolygonGraphicsItem
{
public:
    BuildingGraphicsItem(const GeoDataPlacemark *placemark, const GeoDataBuilding *building);
    ~BuildingGraphicsItem() override;
 
public:
    void paint(GeoPainter* painter, const ViewportParams *viewport, const QString &layer, int tileZoomLevel) override;
 
private:
    void paintFrame(GeoPainter* painter, const ViewportParams *viewport);
 
    void paintRoof(GeoPainter* painter, const ViewportParams *viewport);
    bool configurePainterForFrame(GeoPainter *painter) const;
    void initializeBuildingPainting(const GeoPainter* painter, const ViewportParams *viewport,
                                    bool &drawAccurate3D, bool &isCameraAboveBuilding) const;
    void updatePolygons(const ViewportParams &viewport,
                         QVector<QPolygonF*>& outlinePolygons,
                         QVector<QPolygonF*>& innerPolygons,
                         bool &hasInnerBoundaries) const;
 
    QPointF buildingOffset(const QPointF &point, const ViewportParams *viewport, bool* isCameraAboveBuilding = nullptr) const;
 
    static QPointF centroid(const QPolygonF &polygon, double &area);
    static void screenPolygons(const ViewportParams &viewport, const GeoDataPolygon *polygon,
                               QVector<QPolygonF*> &polygons,
                               QVector<QPolygonF*> &outlines
                               );
 
    bool contains(const QPoint &screenPosition, const ViewportParams *viewport) const override;
 
private:
    QVector<QPolygonF*> m_cachedOuterPolygons;
    QVector<QPolygonF*> m_cachedInnerPolygons;
    QVector<QPolygonF*> m_cachedOuterRoofPolygons;
    QVector<QPolygonF*> m_cachedInnerRoofPolygons;
    bool m_hasInnerBoundaries;
 
};
 
}
 
#endif