Application: gvSIG desktop

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

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.net.URL;

import java.util.ArrayList;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.andami.ui.mdiManager.IWindow;

import com.iver.cit.gvsig.ProjectExtension;

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

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

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

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

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

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

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

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

import com.iver.cit.gvsig.project.documents.ProjectDocument;

import com.iver.cit.gvsig.project.documents.table.ProjectTable;

import com.iver.cit.gvsig.project.documents.table.ProjectTableFactory;

import com.iver.cit.gvsig.project.documents.view.gui.BaseView;

import com.iver.cit.gvsig.project.documents.view.gui.View;

/* 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:

 *

 * $Id$

 * $Log$

 *

 */

/**

 * <p>Listener used when user presses any of the buttons of the WFS properties dialog.</p>

 * 

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

 * @author Jorge Piera LLodr? (jorge.piera@iver.es)

 */

public class WFSPropertiesDialogListener implements ActionListener {

        public static final String CANCEL_BUTTON_ACTION_COMMAND = "CANCEL";

        public static final String APPLY_BUTTON_ACTION_COMMAND = "APPLY";

        public static final String ACCEPT_BUTTON_ACTION_COMMAND = "ACCEPT";

        private WFSPropertiesDialog dialog = null;

        /**

         * Creates a new WFS properties dialog listener.

         * 

         * @param dialog reference to the WFS properties dialog

         */

        public WFSPropertiesDialogListener(WFSPropertiesDialog dialog) {

                this.dialog = dialog;

        }

        /* (non-Javadoc)

         * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)

         */

        public void actionPerformed(ActionEvent e) {

                if (e.getActionCommand() == CANCEL_BUTTON_ACTION_COMMAND) {

                        dialog.close();

                        return;

                }

                // Accelerate the response: if there are not changes to apply it closes the dialog

                if ((e.getActionCommand() == ACCEPT_BUTTON_ACTION_COMMAND) && (! dialog.isEnabledApplyButton())) {

                        dialog.close();

                        return;

                }

                //Accept or apply

                try {

                        // We can't 'apply' if there is a filter query and it's incorrect

                        if (dialog.getFilterQuery() == null)

                                return;

                        // Gets a reference to the old layer

                        FLayer oldLayer = (FLayer) dialog.getReference();

                        String oldLayerName = oldLayer.getName();

                        // Gets the layer with the current information:

                        FLyrWFS newLayer = dialog.getFLayer(); 

                        // Gets the driver

                        FMapWFSDriver driver = newLayer.getWfsDriver(); //dialog.getDriver();                

                        // Sets the online resource

                        URL host = new URL(dialog.getWizardData().getHost());

                        String onlineResource = dialog.getWizardData().getOnlineResource();

                        // Tries to get the new layer

                        newLayer = new FLyrWFSFactory().getFLyrWFS(newLayer, host, onlineResource, driver, true, false);

                    // If can load the layer, update all data

                        if (newLayer != null) {

                                // Removes the last project table if exists

                                removeProjectTable((FLyrVect) oldLayer);

                                // Sets the new layer

                                dialog.updateReference(newLayer);

                                // Replace the old layer entry at the TOC with the new one

                                BaseView activeView = (BaseView) PluginServices.getMDIManager().getActiveWindow();

                                MapControl mapCtrl = activeView.getMapControl();

                                mapCtrl.getMapContext().getLayers().replaceLayer(oldLayerName, newLayer);

                                mapCtrl.getMapContext().zoomToExtent(newLayer.getFullExtent());

                                // Refresh the active window where the new layer is located

                                refreshActiveWindow();

                                // Update data

                                if (e.getActionCommand() == APPLY_BUTTON_ACTION_COMMAND) {

                                        updateFilterAndAreaPanelsData();

                                        // Disable the apply button

                                        dialog.setEnabledApplyButton(false);

                                        return;

                                }

                        }

                        // Accept button clicked

                        if (e.getActionCommand() == ACCEPT_BUTTON_ACTION_COMMAND) {

                                dialog.close();

                                return;

                        }

                        return;

                } catch (Exception e1) {

                        NotificationManager.addError(e1);

                }                 

        }

        /**

         * Removes the associated project table of the <code>flayer</code>.

         * 

         * @param flayer a vector layer

         */

        private void removeProjectTable(FLyrVect flayer) {

                // Remove it

                ProjectExtension ext = (ProjectExtension) PluginServices.getExtension(ProjectExtension.class);

                ArrayList<ProjectDocument> tables = ext.getProject().getDocumentsByType(ProjectTableFactory.registerName);

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

                        ProjectTable projectTable = (ProjectTable)tables.get(i);

                        try {

                                if (flayer.getRecordset().equals(projectTable.getAssociatedTable().getRecordset())){

                                        ext.getProject().delDocument(projectTable);

                                }

                        } catch (ReadDriverException e) {

                                NotificationManager.addError(e);

                        }

                }

        }

        /**

         * @see WFSFilterPanel#setWFSFilterPanelIsAsTabForWFSLayersLoad(boolean)

         */

        private void setWFSFilterPanelIsAsTabForWFSLayersLoad(boolean b) {

                dialog.setWFSFilterPanelIsAsTabForWFSLayersLoad(b);

        }

        /**

         * <p>Refresh the active window.</p>

         */

        private void refreshActiveWindow() {

                IWindow window = PluginServices.getMDIManager().getActiveWindow();

                if (window instanceof View)

                        ((View)window).invalidate();

        }

        /**

         * Updates the information of the panels {@linkplain WFSFilterPanel WFSFilterPanel} and {@linkplain WFSAreaPanel WFSAreaPanel}.

         */

        private void updateFilterAndAreaPanelsData() {

                // Restores the private attribute of the area panel: hasUserDefinedAnArea

                dialog.setUserHasntDefinedAnArea();

                // If we load another layer, or the same but we've selected others fields -> notify it to the WFSFilter panel

                if (dialog.getFieldsSelectedOfSameLayerHasChanged()) {

                        dialog.resetFieldsSelectedOfSameLayerHasChanged(); // reset that field

                }

                // Update the data of the Filter and Area panels

                setWFSFilterPanelIsAsTabForWFSLayersLoad(false);

                dialog.updateWFSFilterFieldValues();

                dialog.updateWFSArea();

        }

}