Application: gvSIG desktop

package com.iver.cit.gvsig.gui.wizards;

import java.awt.FlowLayout;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

import java.awt.geom.Rectangle2D;

import java.net.MalformedURLException;

import java.net.URL;

import java.util.prefs.Preferences;

import javax.swing.DefaultComboBoxModel;

import javax.swing.JCheckBox;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JTabbedPane;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import org.gvsig.exceptions.BaseException;

import org.gvsig.gui.beans.Messages;

import org.gvsig.gui.beans.panelGroup.PanelGroupManager;

import org.gvsig.gui.beans.swing.JButton;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.andami.persistence.serverData.ServerDataPersistence;

import com.iver.cit.gvsig.fmap.drivers.wfs.FMapWFSDriver;

import com.iver.cit.gvsig.fmap.layers.FLayer;

import com.iver.cit.gvsig.fmap.layers.FLyrWFSFactory;

import com.iver.cit.gvsig.gui.WizardPanel;

import com.iver.cit.gvsig.gui.panels.WFSParamsPanel;

import com.iver.cit.gvsig.panelGroup.loaders.PanelGroupLoaderFromExtensionPoint;

import com.iver.utiles.NotExistInXMLEntity;

import com.iver.utiles.XMLEntity;

import com.iver.utiles.swing.jcomboServer.JComboServer;

import com.iver.utiles.swing.jcomboServer.ServerData;

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

 *

 * Copyright (C) 2004 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.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id$

 * $Log$

 * Revision 1.24  2007-02-09 14:12:38  jorpiell

 * Soporte para WFS 1.1 y WFS-T

 *

 * Revision 1.23  2007/01/24 13:34:17  ppiqueras

 * Reencuadrado JScrollPane de descripci?n de conexi?n.

 *

 * Revision 1.22  2006/12/12 10:24:45  ppiqueras

 * Nueva funcionalidad: Pulsando doble 'click' sobre una capa de un servidor, se carga (igual que antes), pero adem?s se avanza a la siguiente pesta?a sin tener que pulsar el bot?n 'Siguiente'.

 *

 * Revision 1.21  2006/12/11 11:00:52  ppiqueras

 * - Quitado el "Enter" asociado a los botones "Siguiente" y "Anterior"

 *

 * Revision 1.20  2006/12/05 09:22:59  ppiqueras

 * Que con la tecla "Enter" permita hacer lo mismo que pulsando con el rat?n sobre los botones "Conectar", "Siguiente" y "Anterior" en WFS.

 *

 * Revision 1.19  2006/10/31 09:38:15  jorpiell

 * Se ha creado una factoria para crear la capa. De ese modo no se repite c?digo desde le panel de propiedades y desde el panel de la capa

 *

 * Revision 1.18  2006/10/27 06:44:56  jorpiell

 * Se han cambiado algunas etiquetas de texto que sal?an recortadas

 *

 * Revision 1.17  2006/10/10 12:55:06  jorpiell

 * Se ha a?adido el soporte de features complejas

 *

 * Revision 1.16  2006/10/02 09:09:45  jorpiell

 * Cambios del 10 copiados al head

 *

 * Revision 1.14.2.3  2006/09/29 14:12:53  luisw2

 * CRSFactory.getCRS substitutes ProjectionPool.get

 *

 * Revision 1.14.2.2  2006/09/28 08:54:01  jorpiell

 * Ya se puede reproyectar

 *

 * Revision 1.14.2.1  2006/09/27 11:12:14  jorpiell

 * Hay que comprobar que se han devuelto un n?mero de features menor que el n?mero m?ximo permitido

 *

 * Revision 1.14  2006/09/03 13:25:04  jorpiell

 * Los servidores se guardan ahora en el plugin-persistence como WFS

 *

 * Revision 1.13  2006/08/30 07:42:29  jorpiell

 * Se le asigna a la capa creada una proyecci?n concreta. Si esto no se hace, al exportar a postigis se produce un error.

 *

 * Revision 1.12  2006/07/21 11:50:31  jaume

 * improved appearance

 *

 * Revision 1.11  2006/07/11 11:55:41  jorpiell

 * Se ha a?adido el fallo de tipo de dato en el log

 *

 * Revision 1.10  2006/06/15 11:17:06  jorpiell

 * Se ha encontrado la forma de comprobar cuando se prodicia un error de parseo al hacer un hasnext (en la feature). Se atrapa y se lanza la excepci?n hacia arriba

 *

 * Revision 1.9  2006/06/14 08:46:24  jorpiell

 * Se tiene en cuanta la opcion para refrescar las capabilities

 *

 * Revision 1.8  2006/05/25 16:22:59  jorpiell

 * Se limpia el panel cada vez que se conecta con un servidor distinto

 *

 * Revision 1.7  2006/05/25 16:01:51  jorpiell

 * Se ha a?adido la funcionalidad para eliminar el namespace de los tipos de atributos

 *

 * Revision 1.6  2006/05/25 10:29:07  jorpiell

 * A?adido el checkbox para que se  haga uso de la cache

 *

 * Revision 1.5  2006/05/24 12:08:53  jorpiell

 * Cambiado el nombre de la pesta?a a WFS

 *

 * Revision 1.4  2006/05/23 13:21:59  jorpiell

 * Si hay alg?n problema en la carga se muestra un mensaje de error

 *

 * Revision 1.3  2006/05/23 08:09:53  jorpiell

 * Se ha cambiado la forma en la que se leian los valores seleccionados en los paneles y se ha cambiado el comportamiento de los botones

 *

 * Revision 1.2  2006/05/19 12:58:03  jorpiell

 * Modificados algunos paneles

 *

 * Revision 1.1  2006/04/19 12:50:16  jorpiell

 * Primer commit de la aplicaci?n. Se puede hacer un getCapabilities y ver el mensaje de vienvenida del servidor

 *

 *

 */

/**

 * <p>Wizard that allows add a new WFS layer.</p>

 *

 * @author Jorge Piera Llodr? (piera_jor@gva.es)

 * @author Pablo Piqueras Bartolom? (pablo.piqueras@iver.es)

 */

public class WFSWizard extends WizardPanel {

        private int page;

        private boolean connected = false;

        private JComboServer cmbHost = null;

        private JButton btnConnect = null;

        private javax.swing.JPanel jPanel = null;

        private javax.swing.JLabel jLabel1 = null;

        private javax.swing.JLabel lblTitle = null;

        private javax.swing.JScrollPane jScrollPane = null;

        private javax.swing.JTextArea txtAbstract = null;

        private javax.swing.JPanel panelPage1 = null;

        private javax.swing.JPanel pnlName = null;

        private JButton btnSiguiente = null;

        private JButton btnAnterior = null;

        private javax.swing.JPanel jPanel1 = null;

        private WFSParamsPanel wfsParamsPanel = null;

        private WFSWizardData dataSource = null;

        private JLabel lblServerType = null;

        private JLabel lblServerTypeValue = null;

        private JCheckBox chkCaching = null;

        private static Preferences fPrefs = Preferences.userRoot().node( "gvsig.wfs-wizard" );

        private boolean refreshing = fPrefs.getBoolean("refresh_capabilities", false);

        private final String wfs_properties_extensionpoint_name = "WFSPropertiesDialog";

        /**

         * This is the default constructor

         */

        public WFSWizard() {

                super();

                initialize();

        }

        /**

         * This method initializes this

         */

        private void initialize() {

                setTabName(PluginServices.getText(this, "WFS"));

                lblServerType = new JLabel();

                lblServerType.setBounds(20, 444, 100, 20);

                lblServerType.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);

                lblServerType.setHorizontalTextPosition(javax.swing.SwingConstants.RIGHT);

                lblServerType.setFont(new java.awt.Font("Arial", java.awt.Font.PLAIN, 11));

                lblServerType.setText(PluginServices.getText(this, "server_type")+":");

                lblServerTypeValue = new JLabel();

                lblServerTypeValue.setBounds(128, 444, 148, 20);

                lblServerTypeValue.setFont(new java.awt.Font("Arial", java.awt.Font.BOLD, 11));

                lblServerTypeValue.setText("-");

                this.setLayout(null);

//                this.setPreferredSize(new java.awt.Dimension(750, 320));

//                this.setPreferredSize(new Dimension(750, 320));

                this.setVisible(true);

//                this.setSize(518, 468);

                this.add(getPanelPage1(), null);

                page = 0;

                this.add(getPanelPage2(), null);

                this.add(getBtnAnterior(), null);

                this.add(getBtnSiguiente(), null);

                this.add(lblServerType, null);

                this.add(lblServerTypeValue, null);

                uptateNavigatingButtons();

        }

        /**

         * Adds the host addres to a persistent data storage.

         *

         * @param host the host of the server

         */

        private void addHost(String host) {

                host = host.trim();

                ServerDataPersistence persistence = new ServerDataPersistence(this,ServerData.SERVER_TYPE_WFS);

                persistence.addServerData(new ServerData(host, ServerData.SERVER_TYPE_WFS));

        }

        /**

         * Fills up the initial WCSWizard controls.

         *

         * jaume

         */

        private void rellenarControles() throws Exception{

                try {

                        String host = cmbHost.getModel().getSelectedItem().toString();

                        URL url = new URL(host);

                        dataSource.setHost(url, refreshing);

                        addHost(host);

                        getLblTitle().setText(dataSource.getTitle());

                        getTxtAbstract().setText(dataSource.getAbstract());

                        lblServerTypeValue.setText(dataSource.getServerType());

                        wfsParamsPanel.setWizardData(dataSource);

                        connected = true;

                } catch(Exception e) {

                        throw e;

                }

        }

        /**

         * Enables or disables the Next and Previous buttons according with the current

         * page and the enabled pages.

         */

        private void uptateNavigatingButtons() {

                if (page == 0) {

                        getBtnAnterior().setEnabled(false);

                        getBtnSiguiente().setVisible(true);

                        getBtnSiguiente().setEnabled(false);

                }

                else {

                        short tabIndex = (short) wfsParamsPanel.getSelectedIndex();

                        getBtnAnterior().setEnabled(true);

                        if (wfsParamsPanel.nextPageEnabled() == -1) {

                            getBtnSiguiente().setEnabled(false);

                            if (tabIndex == (wfsParamsPanel.getPanelInGUICount() -1))

                                        getBtnSiguiente().setVisible(false);

                        }

                        else {

                                getBtnSiguiente().setVisible(true);

                                getBtnSiguiente().setEnabled(true);

                        }

                }

        }

        /**

         * This method initializes txtHost from the persistent data storage

         *

         * @return javax.swing.JTextField

         */

        private javax.swing.JComboBox getTxtHost() {

                if (cmbHost == null) {

                        cmbHost = new JComboServer();

                        cmbHost.setModel(new DefaultComboBoxModel());

                        cmbHost.setPreferredSize(new java.awt.Dimension(350, 20));

                        cmbHost.setBounds(11, 26, 454, 20);

                        cmbHost.setEditable(true);

                        ServerDataPersistence persistence = new ServerDataPersistence(this,ServerData.SERVER_TYPE_WFS);

                        ServerData[] servers = persistence.getArrayOfServerData();

                        if (servers.length == 0){

                                PluginServices ps = PluginServices.getPluginServices(this);

                                XMLEntity xml = ps.getPersistentXML();

                                try {

                                        String[] oldServers = xml.getStringArrayProperty("wfs-servers");

                                        servers = new ServerData[oldServers.length];

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

                                                servers[i] = new ServerData(oldServers[i],ServerData.SERVER_TYPE_WMS);

                                        }

                                        xml.remove("wfs-servers");

                                        ps.setPersistentXML(xml);

                                } catch (NotExistInXMLEntity e) {

                                        // Old servers doesn't exist

                                        servers = new ServerData[2];

                                        servers[0] = new ServerData("http://www2.dmsolutions.ca/cgi-bin/mswfs_gmap",ServerData.SERVER_TYPE_WFS);

                                        servers[1] = new ServerData("http://www.idee.es/IDEE-WFS/ogcwebservice",ServerData.SERVER_TYPE_WFS);

                                }

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

                                        persistence.addServerData(servers[i]);

                                }

                                persistence.setPersistent();

                        }

                        cmbHost.setServerList(servers);

                        // Allows that user can start the connection to the written server pressing the 'Enter' key

                        cmbHost.getEditor().getEditorComponent().addKeyListener(new KeyAdapter() {

                                /*

                                 * (non-Javadoc)

                                 * @see java.awt.event.KeyAdapter#keyReleased(java.awt.event.KeyEvent)

                                 */

                                public void keyReleased(KeyEvent e) {

                                        if (e.getKeyCode() == KeyEvent.VK_ENTER) {

                                                getBtnConnect().doClick();

                                        }

                                }

                        });

                }

                return cmbHost;

        }

        /**

         * This method initializes btnDetalles

         *

         * @return JButton

         */

        private JButton getBtnConnect() {

                if (btnConnect == null) {

                        btnConnect = new JButton();

                        btnConnect.setPreferredSize(new java.awt.Dimension(100, 20));

                        btnConnect.setBounds(366, 50, 100, 20);

                        btnConnect.setText(PluginServices.getText(this, "connect"));

                        btnConnect.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        btnConnect.setEnabled(false); // This avoids multiple contiguous actions

                                        try {

                                                rellenarControles();

                                                wfsParamsPanel.refreshCapabilitiesInfo();

                                                wfsParamsPanel.refreshWFSSelectFeaturePanel();

                                                wfsParamsPanel.enableDefaultTabs(false);

                                                btnConnect.setEnabled(true); // This avoids multiple contiguous actions

                                                getBtnSiguiente().setEnabled(true);

                                                getBtnSiguiente().requestFocus(); // Sets focus to the 'next' button

                                        }

                                        catch(Exception e1) {

                                                JOptionPane.showMessageDialog(null,

                                                                Messages.getText("invalid_url"),

                                                                Messages.getText("warning"),

                                                                JOptionPane.WARNING_MESSAGE);

                                                btnConnect.setEnabled(true);

                                        }

                                }

                        });

                        // If user press the 'Enter' key -> advance

                        btnConnect.addKeyListener(new KeyAdapter() {

                                /*

                                 *  (non-Javadoc)

                                 * @see java.awt.event.KeyListener#keyReleased(java.awt.event.KeyEvent)

                                 */

                                public void keyReleased(KeyEvent e) {

                                        if (e.getKeyCode() == KeyEvent.VK_ENTER) {

                                                btnConnect.doClick();

                                        }

                                }

                        });

                }

                return btnConnect;

        }

        /**

         * This method initializes jPanel

         *

         * @return javax.swing.JPanel

         */

        private javax.swing.JPanel getJPanel() {

                if (jPanel == null) {

                        jPanel = new javax.swing.JPanel();

                        jPanel.setLayout(null);

                        jPanel.setPreferredSize(new java.awt.Dimension(470, 130));

                        jPanel.setBorder(javax.swing.BorderFactory.createTitledBorder(null,

                                        PluginServices.getText(this, "descripcion"),

                                        javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION,

                                        javax.swing.border.TitledBorder.DEFAULT_POSITION, null,

                                        null));

                        jPanel.setBounds(2, 96, 477, 324);

                        jPanel.add(getJScrollPane(), null);

                        jPanel.add(getPnlName(), null);

                }

                return jPanel;

        }

        /**

         * This method initializes pnlName

         *

         * @return javax.swing.JPanel

         */

        private JPanel getPnlName() {

                if (pnlName == null) {

                        pnlName = new JPanel(new FlowLayout(FlowLayout.LEFT, 10, 0));

                        pnlName.setBounds(new java.awt.Rectangle(9,19,452,24));

                        pnlName.add(getJLabel1(), null);

                        pnlName.add(getLblTitle(), null);

                }

                return pnlName;

        }

        /**

         * This method initializes jLabel1

         *

         * @return javax.swing.JLabel

         */

        private javax.swing.JLabel getJLabel1() {

                if (jLabel1 == null) {

                        jLabel1 = new javax.swing.JLabel();

                        jLabel1.setText(PluginServices.getText(this, "nombre") + ":");

                        jLabel1.setBounds(15, 26, 65, 15);

                }

                return jLabel1;

        }

        /**

         * This method initializes lblTitle

         *

         * @return javax.swing.JLabel

         */

        private javax.swing.JLabel getLblTitle() {

                if (lblTitle == null) {

                        lblTitle = new javax.swing.JLabel();

                        lblTitle.setText("-");

                        lblTitle.setPreferredSize(new java.awt.Dimension(350, 16));

                        lblTitle.setBounds(82, 26, 350, 16);

                }

                return lblTitle;

        }

        /**

         * This method initializes jScrollPane

         *

         * @return javax.swing.JScrollPane

         */

        private javax.swing.JScrollPane getJScrollPane() {

                if (jScrollPane == null) {

                        jScrollPane = new javax.swing.JScrollPane();

                        jScrollPane.setViewportView(getTxtAbstract());

                        jScrollPane.setPreferredSize(new java.awt.Dimension(450, 60));

                        jScrollPane.setBounds(10, 47, 457, 267);

                }

                return jScrollPane;

        }

        /**

         * This method initializes txtAbstract

         *

         * @return javax.swing.JTextArea

         */

        private javax.swing.JTextArea getTxtAbstract() {

                if (txtAbstract == null) {

                        txtAbstract = new javax.swing.JTextArea();

                        txtAbstract.setWrapStyleWord(true);

                        txtAbstract.setColumns(30);

                        txtAbstract.setLineWrap(true);

                }

                return txtAbstract;

        }

        /**

         * This method initializes panelPage1

         *

         * @return javax.swing.JPanel

         */

        private javax.swing.JPanel getPanelPage1() {

                if (panelPage1 == null) {

                        panelPage1 = new javax.swing.JPanel();

                        panelPage1.setLayout(null);

                        panelPage1.setPreferredSize(new java.awt.Dimension(480, 220));

                        panelPage1.setVisible(true);

                        panelPage1.setBounds(15, 5, 480, 427);

                        panelPage1.add(getJPanel1(), null);

                        panelPage1.add(getJPanel(), null);

                }

                return panelPage1;

        }

        /**

         * This method initializes panelPage2

         *

         * @return javax.swing.JPanel

         */

        private javax.swing.JPanel getPanelPage2() {

                if (wfsParamsPanel == null) {

                        try {

                                PanelGroupManager manager = PanelGroupManager.getManager();

                                manager.registerPanelGroup(WFSParamsPanel.class);

                                manager.setDefaultType(WFSParamsPanel.class);

                                // Initially there is no layer

                                wfsParamsPanel = (WFSParamsPanel) manager.getPanelGroup(null);

                                wfsParamsPanel.setBounds(4, 9, 502, 423);

                                wfsParamsPanel.loadPanels(new PanelGroupLoaderFromExtensionPoint(wfs_properties_extensionpoint_name));

                                wfsParamsPanel.addChangeListener(new ChangeListener() {

                                // This method is called whenever the selected tab changes

                                public void stateChanged(ChangeEvent evt) {

                                    JTabbedPane pane = (JTabbedPane)evt.getSource();

                                    // Update the navigation buttons

                                    uptateNavigatingButtons();

                                }

                            });

                        } catch (BaseException bE) {

                                NotificationManager.showMessageError(bE.getLocalizedMessageStack(), bE);

                        } catch (Exception e) {

                                NotificationManager.showMessageError(e.getLocalizedMessage(), e);

                        }

                }

                return wfsParamsPanel;

        }

        /**

         * This method initializes btnSiguiente

         *

         * @return JButton

         */

        private JButton getBtnSiguiente() {

                if (btnSiguiente == null) {

                        btnSiguiente = new JButton();

                        btnSiguiente.setPreferredSize(new java.awt.Dimension(100, 30));

                        btnSiguiente.setBounds(395, 444, 100, 20);

                        btnSiguiente.setText(PluginServices.getText(this, "siguiente"));

                        btnSiguiente.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        if (page == 0) {

                                                page = 1;

                                                getPanelPage1().setVisible(false);

                                                getPanelPage2().setVisible(true);

                                        }

                                        else {

                                                wfsParamsPanel.goToNextTab();

                                        }

                                        uptateNavigatingButtons();

                                }

                        });

                }

                return btnSiguiente;

        }

        /**

         * This method initializes btnAnterior

         *

         * @return JButton

         */

        private JButton getBtnAnterior() {

                if (btnAnterior == null) {

                        btnAnterior = new JButton();

                        btnAnterior.setBounds(292, 444, 100, 20);

                        btnAnterior.setText(PluginServices.getText(this, "anterior"));

                        btnAnterior.setPreferredSize(new java.awt.Dimension(100, 30));

                        btnAnterior.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        int tabIndex = wfsParamsPanel.getSelectedIndex();

                                        if (page == 1) {

                                                if (tabIndex == 0) {

                                                        page = 0;

                                                        connected = false;

                                                        wfsParamsPanel.enableDefaultTabs(false);

                                                        getLblTitle().setText("-");

                                                        getTxtAbstract().setText("");

                                                        getPanelPage2().setVisible(false);

                                                        getPanelPage1().setVisible(true);

                                                }

                                                else {

                                                        wfsParamsPanel.goToPreviousTab();

                                                }

                                        }

                                        else {

                                        }

                                        uptateNavigatingButtons();

                                }

                        });

                }

                return btnAnterior;

        }

        /**

         * This method initializes jPanel1

         *

         * @return javax.swing.JPanel

         */

        private javax.swing.JPanel getJPanel1() {

                if (jPanel1 == null) {

                        jPanel1 = new javax.swing.JPanel();

                        jPanel1.setLayout(null);

                        jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(

                                        null, PluginServices.getText(this, "server"),

                                        javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION,

                                        javax.swing.border.TitledBorder.DEFAULT_POSITION, null, null));

                        jPanel1.setBounds(2, 5, 477, 85);

                        jPanel1.add(getTxtHost(), null);

                        jPanel1.add(getBtnConnect(), null);

                        jPanel1.add(getChkCaching(), null);

                }

                return jPanel1;

        }

        /**

         * Returns the wizard's data source

         *

         * @return the wizard's data source

         */

        public WFSWizardData getDataSource() {

                return dataSource;

        }

        /**

         * Sets the wizard's data source

         *

         * @param source the wizard's data source

         */

        public void setDataSource(WFSWizardData source) {

                dataSource = source;

        }

        /**

         * Returns the rectangle that contains all the others

         *

         * @param rects[] rectangles with its positions and dimensions

         *

         * @return Rectangle2D the rectangle that contains all the others

         */

        public static Rectangle2D getRectangle(Rectangle2D[] rects) {

                Rectangle2D ret = rects[0];

                for (int i = 1; i < rects.length; i++) {

                        ret.add(rects[i]);

                }

                return ret;

        }

        /**

         * Returns the host typed in the host text field or null if nothing is typed

         * or it is not a valid URL.

         *

         * @return URL del host

         */

        public URL getHost() {

                try {

                        return new URL(cmbHost.getModel().getSelectedItem().toString());

                } catch (MalformedURLException e) {

                        return null;

                }

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.gui.WizardPanel#initWizard()

         */

        public void initWizard() {

                setDataSource(new WFSWizardData());

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.gui.WizardPanel#execute()

         */

        public void execute() {

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.gui.WizardPanel#getLayer()

         */

        public FLayer getLayer() {

                FLayer layer = wfsParamsPanel.getLayer();

                URL host = getHost();

                String onlineResource = dataSource.getOnlineResource();

                FMapWFSDriver driver = dataSource.getDriver();

                return new FLyrWFSFactory().getFLyrWFS(layer,host,onlineResource,driver,true,true);

        }

        /**

         * This method initializes chkCaching

         *

         * @return javax.swing.JCheckBox

         */

        private JCheckBox getChkCaching() {

                if (chkCaching == null) {

                        chkCaching = new JCheckBox();

                        chkCaching.setBounds(7, 51, 349, 20);

                        chkCaching.setText(PluginServices.getText(this, "refresh_capabilities"));

                        chkCaching.setToolTipText(PluginServices.getText(this, "refresh_capabilities_tooltip"));

                        chkCaching.setSelected(refreshing);

                        chkCaching.addItemListener(new java.awt.event.ItemListener() {

                                public void itemStateChanged(java.awt.event.ItemEvent e) {

                                        refreshing = chkCaching.isSelected();

                                }

                        });

                        chkCaching.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        chkCaching.setEnabled(false); // This avoids multiple contiguous actions

                                        fPrefs.putBoolean("refresh_capabilities", chkCaching.isSelected());

                                        chkCaching.setEnabled(true); // This avoids multiple contiguous actions

                                }

                        });

                }

                return chkCaching;

        }

        /**

         * This method makes the 'btnSiguiente' to be clicked

         */

        public void doClickOnNextButton() {

                getBtnSiguiente().doClick();

        }

}