import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Point2D;
import java.awt.image.BufferedImage;
import java.util.List;
import java.util.Set;


import org.geotools.data.simple.SimpleFeatureSource;
import org.geotools.map.FeatureLayer;
import org.geotools.map.Layer;
import org.geotools.renderer.GTRenderer;
import org.geotools.renderer.lite.StreamingRenderer;
import org.geotools.styling.Style;
import org.geotools.swing.JMapPane;
import org.geotools.swing.RenderingExecutorEvent;
import org.opengis.filter.identity.FeatureId;

import br.com.ftp.agricultura.util.EstilosUtil;


public class MapPanel extends JMapPane{

    Point2D pointCursor = null;

    public MapPanel(){
        super();

        this.setDoubleBuffered(true);
        GTRenderer draw = new StreamingRenderer();
        draw.setMapContent(this.getMapContent());
        this.setRenderer( draw );
    }

    @Override
    protected void paintComponent(Graphics g){

        super.paintComponent(g);
         Graphics2D graphics2D = (Graphics2D) g;
           //Set  anti-alias!
        graphics2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);

       // Set anti-alias for text
        graphics2D.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
                RenderingHints.VALUE_TEXT_ANTIALIAS_ON);


        drawCursor(pointCursor, g);

        repaint();
    }

    private void drawCursor(Point2D pointCursor, Graphics g){
        if(pointCursor!=null){
            g.setColor(Color.RED);
            g.drawOval((int)pointCursor.getX()-5, (int)pointCursor.getY()-5, 10, 10);
            g.drawLine((int)pointCursor.getX(), (int)pointCursor.getY(), (int)pointCursor.getX(), (int)pointCursor.getY()-40);
            g.drawLine((int)pointCursor.getX(), (int)pointCursor.getY(), (int)pointCursor.getX(), (int)pointCursor.getY()+40);
            g.drawLine((int)pointCursor.getX(), (int)pointCursor.getY(), (int)pointCursor.getX()-40, (int)pointCursor.getY());
            g.drawLine((int)pointCursor.getX(), (int)pointCursor.getY(), (int)pointCursor.getX()+40, (int)pointCursor.getY());
        }

    }
    public void setCursor(Point2D pointCursor){
        this.pointCursor = pointCursor;
    }
    public void setCursor(int x, int y){
        if(this.pointCursor==null){
            this.pointCursor = new Point2D.Double();
        }
        this.pointCursor.setLocation(x, y);
    }
    /**
     * Sets the display to paint selected features yellow and unselected
     * features in the default style.
     *
     * @param IDs
     *            identifiers of currently selected features
     */
    public void displaySelectedFeatures(Layer layer, Set<FeatureId> IDs) {
        Style style;

        if (IDs.isEmpty()) {
            style = EstilosUtil.createDefaultStyle(layer);

        } else {
            style = EstilosUtil.createSelectedStyle(layer, IDs);
        }
        ((FeatureLayer) layer).setStyle(style);
        this.repaint(1000);
    }
    public Layer getLayer(String name){
        List<Layer> layers = getMapContent().layers();
        for (Layer layer : layers) {
            if(layer.getTitle().equalsIgnoreCase(name)){
                return layer;
            }
        }
        return null;
    }
}