| 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 6489 2006-07-21 09:13:55Z azabala $

* $Log$

* Revision 1.6  2006-07-21 09:10:34  azabala

* fixed bug 608: user doesnt enter any result file to the geoprocess panel

*

* Revision 1.5  2006/06/29 17:29:34  azabala

* Added common functionality to all geoprocess panels (result layer dialog)

*

* Revision 1.4  2006/06/08 18:22:02  azabala

* Arreglado pete cuando abr?amos un dialogo de geoprocessing habiendo agrupaciones en el TOC

*

* 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.awt.Component;

import java.io.File;

import java.io.FileNotFoundException;

import java.util.ArrayList;

import java.util.Arrays;

import javax.swing.JComboBox;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JTextField;

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.GenericFileFilter;

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;

        protected JTextField fileNameResultTextField = 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 FLyrVect[] getVectorialLayers(FLayers layers){

                FLyrVect[] solution = null;

                ArrayList list = new ArrayList();

                int numLayers = layers.getLayersCount();

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

                        FLayer layer = layers.getLayer(i);

                        if(layer instanceof FLyrVect)

                                list.add(layer);

                        else if(layer instanceof FLayers)

                                list.addAll(Arrays.asList(getVectorialLayers((FLayers)layer)));

                }

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

                list.toArray(solution);

                return solution;

        }

        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());

                                if(layer instanceof FLayers){

                                        FLayers layers = (FLayers) layer;

                                        FLyrVect[] vectorials = getVectorialLayers(layers);

                                        for(int j = 0; j < vectorials.length; j++){

                                                list.add(vectorials[j].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) {

                JFrame parentComponent = (JFrame)PluginServices.

                                                                                        getMainFrame();

                JOptionPane.showMessageDialog(parentComponent, 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;

        }

         public void openResultFile() {

                        JFileChooser jfc = new JFileChooser();

                jfc.addChoosableFileFilter(new GenericFileFilter("shp",

                                                                                        "Ficheros SHP"));

                if (jfc.showSaveDialog((Component) PluginServices.getMainFrame()) == 

                                                                                                JFileChooser.APPROVE_OPTION) {

                    File file = jfc.getSelectedFile();

                    if (!(file.getPath().endsWith(".shp") || file.getPath().endsWith(".SHP"))){

                        file = new File(file.getPath()+".shp");

                    }

                }//if

                if (jfc.getSelectedFile()!=null) {

                        getFileNameResultTextField().setText(

                                        jfc.getSelectedFile().getAbsolutePath());

                }

          }

                 /**

                  * Gives access to the text field where user could enter the result

                  * file path.

                  * If this method is called during the concrete gui subclasses building,

                  * caller must sets bounds of this component.

                  * @return

                  */

                public JTextField getFileNameResultTextField() {

                        if (fileNameResultTextField == null) {

                                fileNameResultTextField = new JTextField();

                        }

                        return fileNameResultTextField;

                }

                public File getOutputFile() throws FileNotFoundException{

                        String fileName = getFileNameResultTextField().getText();

                        if(fileName.length() == 0){

                                throw new FileNotFoundException("No se ha seleccionado ningun fichero de salida");

                        }

                        if(! fileName.endsWith(".shp")){

                                if(! fileName.endsWith("."))

                                        fileName += ".";

                                fileName += "shp";

                        }

                        return new File(fileName);

                }

}