AbstractGeoPolygonGraphicsItem.h

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//
// This file is part of the Marble Virtual Globe.
//
// This program is free software licensed under the GNU LGPL. You can
// find a copy of this license in LICENSE.txt in the top directory of
// the source code.
//
// Copyright 2011      Konstantin Oblaukhov <oblaukhov.konstantin@gmail.com>
//

#ifndef MARBLE_ABSTRACTGEOPOLYGONGRAPHICSITEM_H
#define MARBLE_ABSTRACTGEOPOLYGONGRAPHICSITEM_H

#include "GeoGraphicsItem.h"
#include "marble_export.h"

#include <QImage>
#include <QColor>

namespace Marble
{

class GeoDataLinearRing;
class GeoDataPlacemark;
class GeoDataPolygon;
class GeoDataBuilding;

class MARBLE_EXPORT AbstractGeoPolygonGraphicsItem : public GeoGraphicsItem
{
protected:
    AbstractGeoPolygonGraphicsItem(const GeoDataPlacemark *placemark, const GeoDataPolygon *polygon);
    AbstractGeoPolygonGraphicsItem(const GeoDataPlacemark *placemark, const GeoDataLinearRing *ring);
    AbstractGeoPolygonGraphicsItem(const GeoDataPlacemark *placemark, const GeoDataBuilding *building);
    ~AbstractGeoPolygonGraphicsItem() override;

public:
    const GeoDataLatLonAltBox& latLonAltBox() const override;
    void paint(GeoPainter* painter, const ViewportParams *viewport, const QString &layer, int tileZoomLevel) override;
    bool contains(const QPoint &screenPosition, const ViewportParams *viewport) const override;

    void setLinearRing(GeoDataLinearRing* ring);
    void setPolygon(GeoDataPolygon* polygon);

    static const void *s_previousStyle;

protected:
    bool configurePainter(GeoPainter* painter, const ViewportParams &viewport) const;
    inline
    const GeoDataPolygon *polygon() const { return m_polygon; }
    inline
    const GeoDataLinearRing *ring() const { return m_ring; }
    inline
    const GeoDataBuilding *building() const { return m_building; }

    static int extractElevation(const GeoDataPlacemark &placemark);

private:
    QPixmap texture(const QString &path, const QColor &color) const;

    const GeoDataPolygon * m_polygon;
    const GeoDataLinearRing * m_ring;
    const GeoDataBuilding *const m_building;
};

}

#endif