| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2006 Prodevelop and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *   Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *   +34 963862235

 *   gvsig@gva.es

 *   http://www.gvsig.gva.es

 *

 *    or

 *

 *   Prodevelop Integraci?n de Tecnolog?as SL

 *   Conde Salvatierra de ?lava , 34-10

 *   46004 Valencia

 *   Spain

 *

 *   +34 963 510 612

 *   +34 963 510 968

 *   gis@prodevelop.es

 *   http://www.prodevelop.es

 *

 *    or

 *

 *   Instituto de Rob?tica

 *   Apartado de correos 2085

 *   46071 Valencia

 *   (Spain)

 *   

 *   +34 963 543 577

 *   jjordan@robotica.uv.es

 *   http://robotica.uv.es

 *   

 */

package es.prodevelop.gvsig.mobile.fmap.driver.raster.google.satellite;

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import java.net.MalformedURLException;

import java.net.URL;

import org.apache.log4j.Logger;

import org.gvsig.compatible.StringUtil;

import es.prodevelop.gvsig.mobile.fmap.driver.FMapDriverException;

import es.prodevelop.gvsig.mobile.fmap.driver.raster.GeorreferencedRasterDriver;

import es.prodevelop.gvsig.mobile.fmap.proj.IProjection;

import es.prodevelop.gvsig.mobile.fmap.util.ResourceReader;

import es.prodevelop.gvsig.mobile.fmap.util.Utils;

import es.prodevelop.gvsig.mobile.fmap.util.download.DownloadException;

import es.prodevelop.gvsig.mobile.fmap.util.download.DownloadTask;

import es.prodevelop.gvsig.mobile.fmap.util.download.Downloader;

import es.prodevelop.gvsig.mobile.fmap.viewport.ViewPort;

public class GoogleMapsDriver implements GeorreferencedRasterDriver {

        private static Logger logger = Logger.getLogger(GoogleMapsDriver.class);

        public void initialize(IProjection proj) throws IOException {

        }

        public IProjection getProjection() {

                return null;

        }

        public void setProjection(IProjection proj) {

        }

        public Rectangle2D getFullExtent() {

                return new Rectangle2D.Double(

                                - GoogleUtils.SEMI_EQUATOR_LENGTH,

                                - GoogleUtils.SEMI_EQUATOR_LENGTH,

                                2 * GoogleUtils.SEMI_EQUATOR_LENGTH,

                                2 * GoogleUtils.SEMI_EQUATOR_LENGTH);

        }

        public boolean isGeoreferenced() {

                return true;

        }

        public void setAffineTransform(AffineTransform t) {

                // TODO Auto-generated method stub

        }

        public AffineTransform getAffineTransform() {

                // TODO Auto-generated method stub

                return null;

        }

        public boolean fileAccepted(File fName) {

                // TODO Auto-generated method stub

                return false;

        }

        public void open(File f) throws IOException {

                // TODO Auto-generated method stub

        }

        public void initialize() throws IOException {

                // TODO Auto-generated method stub

        }

        public void close() throws IOException {

                // TODO Auto-generated method stub

        }

        public String getFilePath() {

                // TODO Auto-generated method stub

                return null;

        }

        public int getNumBands() {

                // TODO Auto-generated method stub

                return 3;

        }

        public int getTransparency() {

                // TODO Auto-generated method stub

                return 0;

        }

        public void setTransparency(int trans) {

                // TODO Auto-generated method stub

        }

        public void draw(Graphics2D g, ViewPort viewPort)

                        throws FMapDriverException {

                int[] d_w =

                        GoogleUtils.getDepthAndTileSize(

                                        viewPort.getAdjustedExtent().getWidth(),

                                        viewPort.getImageWidth());

                int d = d_w[0];

                int w = d_w[1];

                String owner = getRightsOwner(viewPort, d);

                // System.out.println("depth = " + d);

                // System.out.println("width = " + w);

                int vp_img_w = viewPort.getImageWidth();

                int vp_img_h = viewPort.getImageHeight();

                // System.out.println("vp_img_w = " + vp_img_w);

                // System.out.println("vp_img_h = " + vp_img_h);

                int n_tiles_hor = 2 + vp_img_w / w;

                int n_tiles_ver = 2 + vp_img_h / w;

                // System.out.println("n_tiles_hor = " + n_tiles_hor);

                // System.out.println("n_tiles_ver = " + n_tiles_ver);

                Point2D nor_vp_top_left = GoogleUtils.normalize(

                                new Point2D.Double(

                                viewPort.getAdjustedExtent().getMinX(),

                                viewPort.getAdjustedExtent().getMaxY()));

                // double vp_max_y = viewPort.getAdjustedExtent().getMaxY();

                // System.out.println("vp_min_x = " + vp_min_x);

                // System.out.println("vp_max_y = " + vp_max_y);

                // Point2D vp_top_left = new Point2D.Double(vp_min_x, vp_max_y);

                GoogleMapsTile first_tile = GoogleUtils.getTileFor(nor_vp_top_left, d);

                Point2D fi_tile_top_left = GoogleUtils.normalize(

                                new Point2D.Double(

                                                first_tile.getExtent().getMinX(),

                                                first_tile.getExtent().getMaxY()));

                // System.out.println("first_tile, w = " + first_tile_w);

                // double first_ve_world = first_tile.getVerWorld();

                // System.out.println("first_tile, ve_world = " + first_ve_world);

                // double first_ho_world = first_tile.getHorWorld();

                // System.out.println("first_tile, ho_world = " + first_ho_world);

                double first_x_offset = fi_tile_top_left.getX() - nor_vp_top_left.getX();

                double first_y_offset = nor_vp_top_left.getY() - fi_tile_top_left.getY();

                first_x_offset = GoogleUtils.normalizeOffset(first_x_offset);

                first_y_offset = GoogleUtils.normalizeOffset(first_y_offset);

                // System.out.println("first_tile, first_x_offset = " + first_x_offset);

                // System.out.println("first_tile, first_y_offset = " + first_y_offset);

                int first_x_offset_pix = viewPort.fromMapDistance(first_x_offset);

                int first_y_offset_pix = viewPort.fromMapDistance(first_y_offset);

                // System.out.println("first_tile, first_x_offset_pix = " + first_x_offset_pix);

                // System.out.println("first_tile, first_y_offset_pix = " + first_y_offset_pix);

                int screen_x_item = 0;

                int screen_y_item = 0;

                GoogleMapsTile top_tile = first_tile;

                for (screen_x_item = 0; screen_x_item < n_tiles_hor; screen_x_item++) {

                        if (screen_x_item > 0) top_tile = top_tile.getTileToTheRight();

                        GoogleMapsTile item_tile = (GoogleMapsTile) top_tile.clone();

                        for (screen_y_item = 0; screen_y_item < n_tiles_ver; screen_y_item++) {

                                if (screen_y_item > 0) item_tile = item_tile.getTileUnder();

                                URL u = item_tile.getURL();

                                // System.out.println("TILE URL = " + u.toString());

                                File img_file = null;

                                try {

                                        // img_file = Downloader.get(u, "jpg");

                                        // img_file = Downloader.getByteArray(u, "jpg");

                                        // /*

                                        img_file = (File) Downloader.downloadObjectCancel(

                                                        u,

                                                        "jpg",

                                                        DownloadTask.FILE,

                                                        "goo",

                                                        null, true);

                                                        // */

                                } catch (DownloadException e) {

                                        g.setFont(Utils.TILE_PROBLEM_FONT);

                                        if (e.getMessage().indexOf("403") != -1) {

                                                g.setColor(Utils.TILE_PROBLEM_403_COLOR);

                                                g.drawString(Utils.TILE_PROBLEM_MSG_403,

                                                                Utils.TILE_PROBLEM_X_OFFSET + screen_x_item * w + first_x_offset_pix,

                                                                Utils.TILE_PROBLEM_Y_OFFSET + screen_y_item * w + first_y_offset_pix);

                                        } else {

                                                logger.error("While downloading: " + e.getMessage());

                                                g.setColor(Utils.TILE_PROBLEM_COLOR);

                                                g.drawString(Utils.TILE_PROBLEM_MSG_ERROR,

                                                                Utils.TILE_PROBLEM_X_OFFSET + screen_x_item * w + first_x_offset_pix,

                                                                Utils.TILE_PROBLEM_Y_OFFSET + screen_y_item * w + first_y_offset_pix);

                                        }

                                        continue;

                                }

                                Image img = ResourceReader.getImage(img_file);

                                // /*

                                if ((img == null) || (img.getWidth(null) == -1)) {

                                        g.setFont(Utils.TILE_PROBLEM_FONT);

                                        g.setColor(Utils.TILE_PROBLEM_COLOR);

                                        g.drawString(Utils.TILE_PROBLEM_MSG_NODATA,

                                                        Utils.TILE_PROBLEM_X_OFFSET + screen_x_item * w + first_x_offset_pix,

                                                        Utils.TILE_PROBLEM_Y_OFFSET + screen_y_item * w + first_y_offset_pix);

                                        continue;

                                }

                                // */

                                if (Utils.USING_PDA) {

                                        img = img.getScaledInstance(w, w, Image.SCALE_SMOOTH);

                                } else {

                                        BufferedImage bim = Utils.createBufferedImage(256, 256);

                                        bim.getGraphics().drawImage(img, 0, 0, null);

                                        img = bim.getScaledInstance(w, w, Image.SCALE_SMOOTH);

                                }

                                /*

                                BufferedImage bim = Utils.createBufferedImage(256, 256);

                                bim.getGraphics().drawImage(img, 0, 0, null);

                                Image resize_img = bim.getScaledInstance(w, w, Image.SCALE_FAST);

                                */

                                // System.out.println("Paste tile: x = " + (screen_x_item * w + first_x_offset_pix));                                

                                // System.out.println("Paste tile: y = " + (screen_y_item * w + first_y_offset_pix));                                

                                g.drawImage(

                                                img,

                                                screen_x_item * w + first_x_offset_pix,

                                                screen_y_item * w + first_y_offset_pix,

                                                null);

                                // System.out.println("===========================================");                                

                        }

                }

                if (owner != null) {

                        g.setFont(GoogleUtils.OWNER_FONT);

                        g.setColor(Color.YELLOW);

                        int y = viewPort.getImageHeight() - 5;

                        g.drawString("Provided by: " + owner, 5, y);

                }

        }

        private String getRightsOwner(ViewPort viewPort, int d) {

                Rectangle2D.Double w = new Rectangle2D.Double(-180, 90, 360, 180);

                Rectangle2D.Double intersect = new Rectangle2D.Double(0, 0, 1, 1);

                Rectangle2D.intersect(w, viewPort.getAdjustedExtent(), intersect);

                double cx = intersect.getCenterX();

                double cy = intersect.getCenterY();

                String u = "http://maps.google.com/maps?spn="

                        + Math.abs(intersect.getHeight())

                        + ","

                        + Math.abs(intersect.getWidth()) 

                        + "&t=k&z="

                        + d

                        + "&vp="

                        + cx

                        + ","

                        + cy

                        + "&ev=zi";

                try {

                        URL url = new URL(u);

                        byte[] owner_byte = Downloader.getByteArray(url, "txt");

                        String owner_str = new String(owner_byte);

                        String[] params =  StringUtil.splitString(owner_str, ",");

                        if (params.length >= 8) {

                                String quote = params[7];

                                String clean = "";

                                for (int i=0; i<quote.length(); i++)

                                        if (quote.substring(i, i+1).compareTo("\"") != 0)

                                                clean = clean + quote.substring(i, i+1);

                                return clean;

                        }

                } catch (MalformedURLException e) {

                        logger.error("Bad URL: " + u);

                } catch (DownloadException e) {

                        logger.error("While getting owner: " + e.getMessage());

                }

                return null;

        }

        private boolean forbidden(byte[] img_file) {

                String sample = new String(img_file, 0, 80);

                if (sample.indexOf("403") != 1) return true;

                return false;

        }

        public int getRasterDataType() {

                // TODO Auto-generated method stub

                return 0;

        }

        public Object getData(int x, int y, int band) {

                // TODO Auto-generated method stub

                return null;

        }

        public int[] getPixel(double wcx, double wcy) {

                // TODO Auto-generated method stub

                return null;

        }

        public String getName() {

                // TODO Auto-generated method stub

                return "Google Maps Raster Driver";

        }

}