/*
Copyright (C) 2001, 2006 United States Government
as represented by the Administrator of the
National Aeronautics and Space Administration.
All Rights Reserved.
*/
package gov.nasa.worldwind.layers;

import gov.nasa.worldwind.WorldWind;
import gov.nasa.worldwind.avlist.AVList;
import gov.nasa.worldwind.util.LevelSet;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

/**
 * @author Patrick Murris
 * @version $Id:$
 */
public abstract class ProceduralTiledImageLayer extends BasicTiledImageLayer
{
    public ProceduralTiledImageLayer(LevelSet levelSet)
    {
        super(levelSet);
    }

    public ProceduralTiledImageLayer(AVList params)
    {
        super(params);
    }

    abstract BufferedImage createTileImage(TextureTile tile, BufferedImage image);

    protected void downloadTexture(final TextureTile tile, DownloadPostProcessor postProcessor)
    {
        final File outFile = WorldWind.getDataFileStore().newFile(tile.getPath());
        if (outFile == null)
            return;

        if (outFile.exists())
            return;

        System.out.println("Procedural tile " + tile);

        // Create and save tile texture image
        BufferedImage image = new BufferedImage(tile.getLevel().getTileWidth(), tile.getLevel().getTileHeight(),
                BufferedImage.TYPE_4BYTE_ABGR);
        image = createTileImage(tile, image);
        try
        {
            ImageIO.write(image, "png", outFile);
        }
        catch (IOException e) {}

    }

}