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;
	}
}