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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2010 Pelican Mapping
 * http://osgearth.org
 *
 * osgEarth is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */
#ifndef OSGEARTH_COMPOSITING_H
#define OSGEARTH_COMPOSITING_H 1

#include <osg/Referenced>
#include <osg/Image>
#include <osg/MixinVector>
#include <osgEarth/Common>
#include <osgEarth/GeoData>
#include <osgEarth/TileKey>
#include <osgEarth/TileSource>

#include <vector>

namespace osgEarth
{
    struct TileImage
    {
        TileImage(osg::Image* image, const TileKey& key);

        osg::Image* getImage() {return _image.get();}

        osg::ref_ptr<osg::Image> _image;       
        double _minX, _minY, _maxX, _maxY;
        unsigned int _tileX;
        unsigned int _tileY;
    };

    class ImageMosaic : public osg::Referenced
    {
    public:
        ImageMosaic();

        osg::Image* createImage();

        typedef std::vector<TileImage> TileImageList;

        TileImageList& getImages() {return _images;}

        void getExtents(double &minX, double &minY, double &maxX, double &maxY);

    protected:

        ~ImageMosaic();
        TileImageList _images;
    };
}

#endif // OSGEARTH_COMPOSITING_H