| gvSIG desktop 1

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

 *

 * Copyright (C) 2005 IVER T.I. 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.

 */

package org.gvsig.raster.gui.wizards;

import java.awt.geom.Rectangle2D;

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

import java.util.ArrayList;

import org.cresques.cts.IProjection;

import org.gvsig.fmap.raster.layers.FLyrRasterSE;

import org.gvsig.raster.util.RasterToolsUtil;

import org.gvsig.raster.util.RasterUtilities;

import org.gvsig.rastertools.RasterModule;

import org.gvsig.rastertools.geolocation.ui.GeoLocationOpeningRasterDialog;

import org.gvsig.rastertools.raw.ui.main.OpenRawFileDefaultView;

import org.kxml2.io.KXmlParser;

import org.xmlpull.v1.XmlPullParser;

import org.xmlpull.v1.XmlPullParserException;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.addlayer.fileopen.AbstractFileOpen;

import com.iver.cit.gvsig.exceptions.layers.LoadLayerException;

import com.iver.cit.gvsig.fmap.MapControl;

/**

 * Clase que indicar? que ficheros puede tratar al panel de apertura de

 * ficheros

 *

 * @version 04/09/2007

 * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class FileOpenRaster extends AbstractFileOpen {

        private ArrayList          lyrsRaster = new ArrayList();

        /**

         * Constructor de FileOpenRaster

         */

        public FileOpenRaster() {

                getFileFilter().add(new DriverFileFilter());

        }

        /**

         * Comprueba si un fichero VRT esta en correcto estado, en caso contrario

         * lanza una excepcion indicando el tipo de error en la apertura.

         *

         * @param file

         * @throws FileOpenVRTException

         */

        private void checkFileVRT(File file) throws FileOpenVRTException {

                KXmlParser parser = new KXmlParser();

                FileReader fileReader = null;

                try {

                        fileReader = new FileReader(file);

                        parser.setInput(fileReader);

                        parser.nextTag();

                        parser.require(XmlPullParser.START_TAG, null, "VRTDataset");

                        while (parser.nextTag () != XmlPullParser.END_TAG) {

                                parser.require(XmlPullParser.START_TAG, null, "VRTRasterBand");

                                String name;

                                while (parser.nextTag() != XmlPullParser.END_TAG) {

                                        parser.require(XmlPullParser.START_TAG, null, null);

                                        boolean relativePath = false;

                                        for (int i=0; i<parser.getAttributeCount(); i++) {

                                                if (parser.getAttributeName(i).equals("relativetoVRT") &&

                                                                parser.getAttributeValue(i).equals("1"))

                                                        relativePath = true;

                                        }

                                        name = parser.getName();

                                        String nameFile = parser.nextText();

                                        if (name.equals("SourceFilename")) {

                                                if (relativePath)

                                                        nameFile = file.getParent() + File.separator + nameFile;

                                                File tryFile = new File(nameFile);

                                                if (!tryFile.exists())

                                                        throw new FileOpenVRTException(PluginServices.getText(this, "no_existe_fichero") + " " + nameFile);

                                        }

                                        parser.require(XmlPullParser.END_TAG, null, name);

                                }

                                parser.require(XmlPullParser.END_TAG, null, "VRTRasterBand");

                        }

                        parser.require(XmlPullParser.END_TAG, null, "VRTDataset");

                        parser.next();

                        parser.require(XmlPullParser.END_DOCUMENT, null, null);

                } catch (XmlPullParserException e) {

                        throw new FileOpenVRTException(PluginServices.getText(this, "el_fichero")+ " " + file.getName().toString() + " " + PluginServices.getText(this, "esta_formato_desconocido"));

                } catch (IOException e) {

                        throw new FileOpenVRTException(PluginServices.getText(this, "no_puede_abrir_fichero") + " " + file.getName().toString());

                } finally {

                        if (fileReader != null)

                                try {

                                        fileReader.close();

                                } catch (IOException e) {

                                }

                }

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.gui.wizards.IFileOpen#post(java.io.File[])

         */

        public File post(File file) {

                //Si el fichero es raw lanzamos el dialogo de par?metros de raw

                if (RasterUtilities.getExtensionFromFileName(file.getAbsolutePath()).equals("raw")) {

                        OpenRawFileDefaultView view = new OpenRawFileDefaultView(file.getAbsolutePath());

                         file = view.getImageFile();

                }

                //Si el fichero es vrt chequeamos que sea correcto

                if (RasterUtilities.getExtensionFromFileName(file.getAbsolutePath()).equals("vrt")) {

                        try {

                                checkFileVRT(file);

                        } catch (FileOpenVRTException e) {

                                RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_abrir_fichero") + " " + file.getName() + "\n\n" + PluginServices.getText(this, "informacion_adicional") + ":\n\n  " + e.getMessage(), this, e);

                                return null;

                        }

                }

                //Creamos la capa y comprobamos si tiene extent. Solo en el caso de que la opci?n est? activa en el cuadro

                //de preferencias

                if(RasterModule.askCoordinates) {

                        FLyrRasterSE lyrRaster = null;

                        try {

                                lyrRaster = FLyrRasterSE.createLayer(file.getName(), file, null);

                                if(        lyrRaster.getFullExtent().getMinX() == 0 && 

                                                lyrRaster.getFullExtent().getMinY() == 0 &&

                                                lyrRaster.getFullExtent().getMaxX() == ((FLyrRasterSE)lyrRaster).getPxWidth() &&

                                                lyrRaster.getFullExtent().getMaxY() == ((FLyrRasterSE)lyrRaster).getPxHeight()) {

                                        if(RasterToolsUtil.messageBoxYesOrNot(lyrRaster.getName() + "\n" + PluginServices.getText(this, "layer_without_georref"), null)) {

                                                GeoLocationOpeningRasterDialog gld = new GeoLocationOpeningRasterDialog(lyrRaster);

                                                PluginServices.getMDIManager().addWindow(gld);

                                        }

                                }

                                lyrsRaster.add(lyrRaster);

                        } catch (LoadLayerException e) {

                                RasterToolsUtil.messageBoxError("error_carga_capa", this, e);

                        }

                }

                return super.post(file);

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.raster.gui.wizards.IFileOpen#execute(java.io.File[])

         */

        public Rectangle2D createLayer(File file, MapControl mapControl, String driverName, IProjection proj) {

                FLyrRasterSE lyr = null;

                String layerName = file.getName();

                //Si hay capas en la lista la buscamos all?

                if(lyrsRaster.size() != 0) {   

                        for (int i = 0; i < lyrsRaster.size(); i++) {

                                if(((FLyrRasterSE)lyrsRaster.get(i)).getName().equals(layerName)) {

                                        lyr = (FLyrRasterSE)lyrsRaster.get(i);

                                        lyr.setProjection(proj);

                                }

                        }

                }

                //Si no hay capa la cargamos

                if(lyr == null) {

                        try {

                                lyr = FLyrRasterSE.createLayer(layerName, file, proj);

                        } catch (LoadLayerException e) {

                                RasterToolsUtil.messageBoxError("error_carga_capa", this, e);

                        }

                }

                //La cargamos en la vista

                if (lyr != null) {

                        lyr.setVisible(true);

                        mapControl.getMapContext().getLayers().addLayer(lyr);

                        return lyr.getFullExtent();

                }

                return null;

        }

}