| gvSIG desktop 1

/*

 * Created on 09-mar-2006

 *

 * 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: AbstractGeoprocessPanel.java 5628 2006-06-02 18:21:28Z azabala $

* $Log$

* Revision 1.3  2006-06-02 18:21:28  azabala

* *** empty log message ***

*

* Revision 1.2  2006/05/25 08:21:14  jmvivo

* A?adido metodo de peticion de confirmacion para sobreescribir el fichero de salida

*

* Revision 1.1  2006/05/24 21:13:09  azabala

* primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing

*

* Revision 1.2  2006/05/08 15:36:33  azabala

* check and ask for spatial index creation

*

* Revision 1.1  2006/04/11 18:01:23  azabala

* primera version en cvs

*

* Revision 1.5  2006/04/07 19:00:58  azabala

* *** empty log message ***

*

* Revision 1.4  2006/03/23 21:02:37  azabala

* *** empty log message ***

*

* Revision 1.3  2006/03/21 19:26:08  azabala

* *** empty log message ***

*

* Revision 1.2  2006/03/14 19:32:22  azabala

* *** empty log message ***

*

* Revision 1.1  2006/03/09 17:03:59  azabala

* *** empty log message ***

*

*

*/

package com.iver.cit.gvsig.geoprocess.core.gui;

import java.io.File;

import java.util.ArrayList;

import javax.swing.JComboBox;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import com.iver.andami.PluginServices;

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

import com.iver.cit.gvsig.fmap.drivers.DriverIOException;

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

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

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

import com.iver.cit.gvsig.gui.thememanager.CreateSpatialIndexMonitorableTask;

import com.iver.utiles.swing.threads.IMonitorableTask;

/**

 * Abstract base class with utility methods

 * commons to all GeoprocessXXXPanel

 * @author azabala

 *

 */

public abstract class AbstractGeoprocessPanel extends JPanel implements IGeoprocessPanel{

        protected FLayers layers = null;

        protected JComboBox layersComboBox = null;

        public FLyrVect getInputLayer() {

                FLyrVect solution = null;

                String selectedLayer = (String)layersComboBox.getSelectedItem();

        solution = (FLyrVect)layers.getLayer(selectedLayer);

        return solution;

        }

        public void setFLayers(FLayers layers){

                this.layers = layers;

        }

        public FLayers getFLayers(){

                return layers;

        }

        protected String[] getLayerNames() {

                String[] solution = null;

                int numLayers = layers.getLayersCount();

                if(layers != null &&  numLayers > 0){

                        ArrayList list = new ArrayList();

                        for(int i = 0; i < numLayers; i++){

                                FLayer layer = layers.getLayer(i);

                                if(layer instanceof FLyrVect)

                                        list.add(layer.getName());

                        }//for

                        solution = new String[list.size()];

                        list.toArray(solution);

                }

                return solution;

        }

        /**

         * Shows to the user a dialog error, whith the title and message body

         * specified as parameters.

         * 

         * @param message body of the error message

         * @param title title of the error message

         */

        public void error(String message, String title) {

                JOptionPane.showMessageDialog(this, message, title,

                                JOptionPane.ERROR_MESSAGE);

        }

        /**

         * Asks to the user for the creation of a spatial index for the

         * specified layer.

         * It will be of help for certain geoprocesses.

         * 

         * FLyrVect default spatial index is MapServer quadtree, that hasnt

         * the ability to do nearest neighbour searches.

         * 

         * For those geoprocesses that needs it (NN searches) overwrite this

         * method and use JSI RTree, or SIL RTree.

         * 

         * It returns an IMonitorableTask, a task to build the spatial

         * index in background.

         * 

         * @param layer

         * @return an ITask

         */

        public IMonitorableTask askForSpatialIndexCreation(FLyrVect layer){

                String title = PluginServices.getText(this, "Crear_Indice");

                String confirmDialogText = 

                        PluginServices.getText(this, "Crear_Indice_Pregunta_1")+

                                        " " +

                                        layer.getName()+

                                        " " +

                        PluginServices.getText(this, "Crear_Indice_Pregunta_2");

                int option = JOptionPane.showConfirmDialog(this, 

                                        confirmDialogText,

                                        title, 

                                        JOptionPane.YES_NO_OPTION, 

                                        JOptionPane.QUESTION_MESSAGE, null);

                if(option == JOptionPane.YES_OPTION){

                        //Usually we want task like spatial index creation dont block

                        //GUI responses. Now, we dont want to start geoprocess execution

                        //until spatial index creation would finish, to have advantage

                        //of the spatial index

                        try {

                                CreateSpatialIndexMonitorableTask task

                                        = new CreateSpatialIndexMonitorableTask(layer);

                                return task;

                        } catch (DriverIOException e) {

                                // TODO Auto-generated catch block

                                e.printStackTrace();

                                return null;

                        } catch (DriverException e) {

                                // TODO Auto-generated catch block

                                e.printStackTrace();

                                return null;

                        }

                }else

                        return null;

        }

        /**

         * Confirm overwrite the output file

         * if it allready exist.

         * 

         * 

         * @param outputFile

         * @return answer

         */

        public boolean askForOverwriteOutputFile(File outputFile){

                String title = PluginServices.getText(this, "Sobreescribir_fichero");

                String confirmDialogText = 

                        PluginServices.getText(this, "Sobreescribir_fichero_Pregunta_1")+

                                        "\n'" +

                                        outputFile.getAbsolutePath()+

                                        "'\n" +

                        PluginServices.getText(this, "Sobreescribir_fichero_Pregunta_2");

                int option = JOptionPane.showConfirmDialog(this, 

                                        confirmDialogText,

                                        title, 

                                        JOptionPane.YES_NO_OPTION, 

                                        JOptionPane.QUESTION_MESSAGE, null);

                if(option == JOptionPane.YES_OPTION){

                        return true;

                }

                return false;

        }

}