StelSkyPolygon.hpp

/*
 * Copyright (C) 2008 Fabien Chereau
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335, USA.
 */

#ifndef _STELSKYPOLYGON_HPP_
#define _STELSKYPOLYGON_HPP_

#include "MultiLevelJsonBase.hpp"
#include "StelSphereGeometry.hpp"
#include "StelSkyImageTile.hpp"

#include <QTimeLine>

class StelCore;

class StelSkyPolygon : public MultiLevelJsonBase
{
    Q_OBJECT

public:
    StelSkyPolygon() {initCtor();}

    StelSkyPolygon(const QString& url, StelSkyPolygon* parent=NULL);
    StelSkyPolygon(const QVariantMap& map, StelSkyPolygon* parent);

    ~StelSkyPolygon();

    void draw(StelCore* core, class StelRenderer* renderer, StelProjectorP projector, float opacity=1.);

    DataSetCredits getDataSetCredits() const {return dataSetCredits;}

    ServerCredits getServerCredits() const {return serverCredits;}

    QVariantMap toQVariantMap() const;

protected:
    float minResolution;

    ServerCredits serverCredits;

    DataSetCredits dataSetCredits;

    QList<SphericalConvexPolygon> skyConvexPolygons;

protected:

    virtual void loadFromQVariantMap(const QVariantMap& map);

private:
    QVariantList subTilesUrls;

    void initCtor();

    void getTilesToDraw(QMultiMap<double, StelSkyPolygon*>& result, StelCore* core, const SphericalRegionP& viewPortPoly, bool recheckIntersect=true);

    bool drawTile(class StelRenderer* renderer, StelProjectorP projector);

    double getMinResolution() const {return minResolution;}

    // Used for smooth fade in
    QTimeLine* texFader;
};

#endif // _STELSKYPOLYGON_HPP_