| gvSIG desktop 1

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

 *

 * Copyright (C) 2006 Instituto de Desarrollo Regional 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

 *

 *   Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)

 *   Campus Universitario s/n

 *   02071 Alabacete

 *   Spain

 *

 *   +34 967 599 200

 */

package org.gvsig.remotesensing.gridmath.gui;

import info.clearthought.layout.TableLayout;

import java.awt.BorderLayout;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Set;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTabbedPane;

import javax.swing.JTextArea;

import javax.swing.JTree;

import javax.swing.border.BevelBorder;

import javax.swing.border.CompoundBorder;

import javax.swing.border.EmptyBorder;

import javax.swing.border.TitledBorder;

import javax.swing.tree.DefaultMutableTreeNode;

import javax.swing.tree.DefaultTreeModel;

import javax.swing.tree.TreePath;

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

import org.gvsig.gui.beans.defaultbuttonspanel.DefaultButtonsPanel;

import org.gvsig.raster.grid.GridExtent;

import org.gvsig.remotesensing.gridmath.GridMathProcess;

import org.gvsig.remotesensing.gridmath.gui.listener.CalculatorPanelListener;

import org.gvsig.remotesensing.gridmath.gui.listener.GridMathListener;

import org.nfunk.jep.JEP;

import com.iver.andami.PluginServices;

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

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

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

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

/**

 * Clase que implenta la interfaz de la calculadora de mapas.

 * 

 * @author Alejandro Mu?oz Sanchez        (alejandro.munoz@uclm.es)

 * @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)

 * @version 19/10/2007 

 */

public class CalculatorPanel extends DefaultButtonsPanel implements FocusListener{

        private static final long serialVersionUID = 1L;

        //-------JBUTTON---------//

        private JButton salvar;

        private JButton recuperar;

        //-------PANEL---------//

        private JPanel centerPanel;

        private JPanel expresionPanel;

        OutputOptionsPanel optionsPanel = null;

        //-------JTEXTAREA---------//

        private JTextArea jTextExpresion;

        //-------JSCROLLPANE---------//

        private JScrollPane scrollExpresion;

        private JScrollPane scrollTree;

        private JScrollPane scrollVariables;

        //--------JTREE--------------//

        private JTree jtree; 

        // ------ JCheckBox----------//        

        private JCheckBox jCheckExtent;

        //----------------------------------------//

        private CalculatorDialog calculatorDialog = null;

        private KeysPanel kp;

        private TableFormat jTableVariables;

        private MapContext m_MapContext = null;

        private View view = null;

        private HashMap m_Constants;

        private HashMap qWindowsHash = null;

        private GridExtent outputExtent;

        GridMathProcess gridMath = null;

        private final String nombreBandas="Band";

        private JEP parser = null;

        private CalculatorPanelListener listener = null;

        /**

         * @param calculatorDialog

         * @param view        vista de la aplicacion 

         */

        public CalculatorPanel(CalculatorDialog calculatorDialog, View view) {

                super();

                this.view = view;

                this.calculatorDialog = calculatorDialog;

                if (view != null)

                        m_MapContext = view.getModel().getMapContext();

                listener = new CalculatorPanelListener(this);

                Inicializar();

        }

        /**

         * Inicializar los elementos del Panel CalculatorPanel

         */

        private void Inicializar(){

                JPanel principalPanel = new JPanel();

                BorderLayout bd=new BorderLayout();

                principalPanel.setLayout(bd);

                kp=new KeysPanel(getJTextExpression()); 

                //agregar el panel central

                principalPanel.add(getCenterPanel(), BorderLayout.CENTER);

                //this.setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED));

                principalPanel.setBorder( new EmptyBorder(3, 3, 3, 3));

                MouseListener m = new MouseAdapter() {

                       public void mousePressed(MouseEvent e) {

                              jTableVariables.setEnEspera(false);        

                               }

                  };

                 kp.getJButton0().addMouseListener(m);

                 kp.getJButton1().addMouseListener(m);

                 kp.getJButton2().addMouseListener(m);

                 kp.getJButton3().addMouseListener(m);

                 kp.getJButton4().addMouseListener(m);

                 kp.getJButton5().addMouseListener(m);

                 kp.getJButton6().addMouseListener(m);

                 kp.getJButton7().addMouseListener(m);

                 kp.getJButton8().addMouseListener(m);

                 kp.getJButton9().addMouseListener(m);

                 kp.getJButtonMinus().addMouseListener(m);

                 kp.getJButtonPlus().addMouseListener(m);

                 kp.getJButtonBrackets().addMouseListener(m);

                 kp.getJButtonDivide().addMouseListener(m);

                 kp.getJButtonMultiply().addMouseListener(m);

                 kp.getJButtonDot().addMouseListener(m);

                 JTabbedPane tabbedPane = new JTabbedPane();

                 tabbedPane.addTab(PluginServices.getText(this, "operacion"), principalPanel);

                tabbedPane.addTab(PluginServices.getText(this, "opciones"), getOptionsPanel());

                this.setLayout(new BorderLayout());

                this.add(tabbedPane, BorderLayout.CENTER);

                 this.addButtonPressedListener(listener);

        }

        /**

         * Define los elementos del panel central: JTree, Tabla de Variables y calculadora

         * @return  panel central

         */

        public JPanel getCenterPanel() {

                if (centerPanel==null){

                        centerPanel=new JPanel();

                        centerPanel.setLayout(new GridBagLayout());

                        GridBagConstraints c = new GridBagConstraints();

                        c.fill = GridBagConstraints.BOTH;

                        c.insets=new Insets(2,2,0,2);

                        c.weightx = 0.75;

                        c.gridx = 0;

                        c.gridy = 0;

                        // Agregar jtree

                        getScrollTree().setSize(50,70);

                        centerPanel.add(getScrollTree(), c);

                        c.insets=new Insets(2,2,0,2);

                        c.weightx = 1.0;

                        c.gridx = 1;

                        c.gridy = 0;

                        getScrollVariables().setSize(50,70);

                        getJTableVariables().getTableFormat().getColumn(PluginServices.getText(this, "valor")).setPreferredWidth(180);

                        // Agregar la tabla de variables

                        centerPanel.add(getScrollVariables(), c);

                        c.weightx = 0.0;

                        c.gridx = 2;

                        c.gridy = 0;

                        //Agregar el KeyPanel

                        centerPanel.add(kp, c);

                        c.insets=new Insets(2,2,0,2);

                        c.weightx = 1.0;

                        c.gridwidth=2;

                        c.gridx = 0;

                        c.gridy = 1;

                        //Agregar check  habilitar distinta extension

                        centerPanel.add(getJCheckExtent(), c);

                        c.fill = GridBagConstraints.BOTH;

                        c.insets=new Insets(2,2,0,2);

                        c.weightx = 1.0;

                        c.gridwidth=3;

                        c.gridx = 0;

                        c.gridy = 2;

                        //Agergar el panel que contiene la expresion

                        centerPanel.add(getExpresionPanel(), c);

                }                

                return centerPanel;

        }

        /**

         * Crea un panel en el que se agrega el area de texto donde se define la expresi?n.

         * @return panel con el area de texto donde se define la expresi?n

         */

        public JPanel getExpresionPanel() {

                if (expresionPanel==null){

                        expresionPanel=new JPanel();                                

                }

                expresionPanel.setLayout(new BorderLayout());

                expresionPanel.add(getScrollExpresion(),BorderLayout.CENTER);

                //Este panel contine los botones de salvar y recuperar

                JPanel p=new JPanel();

                TableLayout thisLayout = new TableLayout(new double[][] {

                                 {5.0,TableLayout.PREFERRED},         

                                {TableLayout.PREFERRED, TableLayout.PREFERRED, TableLayout.PREFERRED}});

                                //Establece la separaci?n entre los elementos

                                thisLayout.setHGap(3);

                                thisLayout.setVGap(3);

                p.setLayout(thisLayout);        

                TitledBorder topBorder = BorderFactory.createTitledBorder("Expresi?n");

            topBorder.setTitlePosition(TitledBorder.TOP);

            //creamos un borde compuesto

                expresionPanel.setBorder(new CompoundBorder(topBorder,new EmptyBorder(0,0,0,0)));

                p.add(getSalvar(),"1,0");

                p.add(getRecuperar(),"1,1");

                expresionPanel.add(p,BorderLayout.EAST);

                return expresionPanel;

        }

        /**

         * @return checkbox permitir distinto extend

         */

        public JCheckBox getJCheckExtent() {

                if (jCheckExtent==null){

                        jCheckExtent=new JCheckBox( PluginServices.getText(this, "distinto_extent"),false);

                        jCheckExtent.addActionListener(listener);

                }

                return jCheckExtent;

        }

        /**

         * @return arbol con capas, funciones, operadores y constantes

         */

        public JTree getJtree() {

                if (jtree==null){

                        jtree=new JTree();

                        jtree.setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED));

                        // Rellenar el arbol con los items correspondientes

                        if (m_MapContext!=null)

                                this.InicizlizaJTree(jtree);

                }

                 return jtree;

        }

        /**

         * @return area de texto donde se intoduce la expresi?n

         */

        public JTextArea getJTextExpression() {

                if (jTextExpresion==null){

                        jTextExpresion=new JTextArea();                                

                                jTextExpresion.setLineWrap(true);

                                jTextExpresion.setWrapStyleWord(true);

                                jTextExpresion.addFocusListener(this);

                                jTextExpresion.addKeyListener(new GridMathListener(this));

                        }

                        return jTextExpresion;

                }

        /**

         *  @return formato de la tabla

         */

        public TableFormat getJTableVariables() {        

                if (jTableVariables==null){

                        jTableVariables=new TableFormat(jTextExpresion);

                        jTableVariables.getTableFormat().getModel().addTableModelListener(listener);

                }

                return jTableVariables;

        }

        /**

        * @return  scroll con el arbol

        */

        public JScrollPane getScrollTree() {

                if (scrollTree==null){

                                scrollTree=new JScrollPane();

                                scrollTree.setViewportView(getJtree());

                                scrollTree.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

                }

                return scrollTree;

        }

        /**

        *  @return scroll con el area de expresi?n

        */

        public JScrollPane getScrollExpresion() {

                if (scrollExpresion==null){

                        scrollExpresion=new JScrollPane();

                        scrollExpresion.setViewportView(getJTextExpression());

                        scrollExpresion.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

                }

                return scrollExpresion;

        }

        /**

         * @return  scroll con la tabla de variables

         */        

        public JScrollPane getScrollVariables() {

                if (scrollVariables==null){

                        scrollVariables=new JScrollPane();                                

                }

                scrollVariables.setViewportView(getJTableVariables().getTableFormat());

                scrollVariables.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

                return scrollVariables;

        }

        /**

         * @return  button cargar expresi?n

         */        

        public JButton getRecuperar() {

                if(recuperar==null){

                        recuperar=new JButton();

                        recuperar.setText(PluginServices.getText(this,"cargar"));

                        recuperar.addActionListener(listener);

                }

                return recuperar;

                }

        /**

         * @return  button salvar expresi?n

         */        

        public JButton getSalvar() {

                if(salvar==null){

                        salvar=new JButton();

                        salvar.setText(PluginServices.getText(this,"salvar"));

                        salvar.addActionListener(listener);                

                }

                return salvar;

        }

        /**

         * Metodo que rellena el Jtree con las las capas cargadas en la vista y sus

         * bandas correspondientes. Ademas con las funciones, operadores y constantes 

         * estandar.

         */

        void InicizlizaJTree(JTree jTree){

                int i;

            double dCellsize;

            String sName;

            //Eliminar el contenido del ?rbol con el que se inicializa por defecto

            jTree.setModel(null);

            FLayers layers = m_MapContext.getLayers();          

            //Nodo principal

            DefaultMutableTreeNode main = new DefaultMutableTreeNode(PluginServices.getText(this,"elementos_jtree"));

            DefaultMutableTreeNode node = new DefaultMutableTreeNode(PluginServices.getText(this,"capas_jtree"));

            DefaultMutableTreeNode child;

            DefaultMutableTreeNode bandas;

            for (i = 0; i < layers.getLayersCount(); i++){

                    //obtiene las capas raster de la vista actual

                    if (layers.getLayer(i) instanceof FLyrRasterSE){

                            //Nombre por defecto de las bandas

                            child = new DefaultMutableTreeNode(layers.getLayer(i).getName());

                                //Obtener las todas las bandas de cada capa raster de la vista

                                // tomamos el nombre de cada una de las bandas

                                for (int j=0; j<((FLyrRasterSE) layers.getLayer(i)).getBandCount(); j++){

                                        String s=nombreBandas+(j+1);

                                        bandas= new DefaultMutableTreeNode(s);

                                        child.add(bandas);

                                }

                                node.add(child);

                    }

            }

            main.add(node);

            //Funciones

            String sFunctions[] ={ "sin","cos","tan","asin", "acos","atan","atan2","sinh",

                                                            "cosh","tanh","asinh", "acosh","atanh","ln","log","exp",

                                                            "abs","rand","mod","sqrt","if" };

            node = new DefaultMutableTreeNode(PluginServices.getText(this,"funciones_jtree"));

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

                    //agregar los elementos al subarbol

                    child = new DefaultMutableTreeNode(" " + sFunctions[i] + "() ");

                        node.add(child);

            }

            main.add(node);

            //Operadores

            String sOperators[] = {"+","-","*","/","%","!","^","&&","||","<",">","<=",">=", "==","!="};

            node = new DefaultMutableTreeNode(PluginServices.getText(this,"operadores_jtree"));

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

                    child = new DefaultMutableTreeNode(" " + sOperators[i] + " ");

                        node.add(child);

            }

            main.add(node);

            //Constantes

            node = new DefaultMutableTreeNode(PluginServices.getText(this,"constantes_jtree"));

            m_Constants = new HashMap();

            m_Constants.put("e", " " + Double.toString(Math.E) + " ");

            m_Constants.put("Pi", " " + Double.toString(Math.PI)+ " ");

            for (i = 0; i < layers.getLayersCount(); i++){

                    if (layers.getLayer(i) instanceof FLyrRasterSE){

                            sName = "Tama?o celda [" + layers.getLayer(i).getName() + "]";

                            dCellsize =((FLyrRasterSE)layers.getLayer(i)).getBufferFactory().getXCellSize();

                            m_Constants.put(sName, " " + Double.toString(dCellsize) + " ");

                    }

            }

            Set set= m_Constants.keySet();

            Iterator iter = set.iterator();

                while(iter.hasNext()){                    

                        child = new DefaultMutableTreeNode((String)iter.next());

                        node.add(child);

                }

                main.add(node);

            //asociar el conenido del arbol al jTree           

            jTree.setModel(new DefaultTreeModel(main));  

            //GENERAR LOS EVENTOS DEL RAT?N CORRESPONDIENTES

            MouseListener ml = new MouseAdapter() {

                public void mousePressed(MouseEvent e) {

                       int iRow=jtree.getRowForLocation(e.getX(),e.getY());

                       TreePath path = jtree.getPathForLocation(e.getX(), e.getY());

                        if( iRow != -1 && e.getClickCount() == 2) {

                                //al hacer doble click sobre un elemento del arbol

                                insertTextFromTree(path);

                        }

                }

           };

           jTree.addMouseListener(ml);

        }

        /**

         * Agrega el texto del ?rbol sobre el que se ha hecho doble click en el cuadro de la expresion

         */

   private void insertTextFromTree(TreePath path){

                    String  var;

                        boolean yaAsignada=false;

                    //Devuelve la ruta de acceso primaria de la ruta de acceso proporcionada.

                    TreePath parent = path.getParentPath();

                    if (parent != null && !parent.toString().equals("["+ PluginServices.getText(this,"elementos_jtree")+"]") && !parent.toString().equals("["+PluginServices.getText(this,"elementos_jtree")+", "+ PluginServices.getText(this,"capas_jtree")+"]")){

                            String sParentName = parent.toString();

                            //String s = path.getLastPathComponent().toString();;

                            String s = null;

                            if (parent.getParentPath().toString().equals("["+PluginServices.getText(this,"elementos_jtree")+", "+ PluginServices.getText(this,"capas_jtree")+"]")){

                                    s =path.getParentPath().getLastPathComponent().toString()+"["+ path.getLastPathComponent().toString()+"]";

                                    if(jTableVariables.isEnEspera()){                                            

                                            // Asigna la variable al nuevo valor

                                            int row= jTableVariables.getFilaSeleccionada();

                                            // Tratamiento de la asignacion incluyendo posibilidad de distinto extent

                                            // Tomo la primera que haya asignada

                                            if(!getJCheckExtent().isSelected()){

                                                            String layerBand,layerName;

                                                            FLyrRasterSE rasterLayer1, rasterLayer2;

                                                            int filaAsignada=0;

                                                            for (int i=0; i< getJTableVariables().getTableFormat().getRowCount(); i++)

                                                                    {

                                                                            layerBand= getJTableVariables().getTableFormat().getValueAt(i,1).toString();

                                                                            if (!layerBand.equals("")){

                                                                                    // primera variable asignada

                                                                                    filaAsignada=i;

                                                                                    break;

                                                                 }

                                                            // si no hay ninguna asignada

                                                             if (i==getJTableVariables().getTableFormat().getRowCount()-1){

                                                                 //insertar normalmente

                                                                 jTableVariables.actualizarVariable(row,s);

                                                            jTableVariables.setEnEspera(false);

                                                            yaAsignada=true;

                                                            s="";        

                                                            }        

                                                    }

                                                    if (yaAsignada==false){

                                                            // Se comparan

                                                            layerBand= getJTableVariables().getTableFormat().getValueAt(filaAsignada,1).toString();

                                                            layerName = layerBand.substring(0,layerBand.indexOf("["));

                                                            rasterLayer1 = (FLyrRasterSE)m_MapContext.getLayers().getLayer(layerName);

                                                            // Variable pasan como argumento

                                                            layerName = s.substring(0,s.indexOf("["));

                                                            rasterLayer2 = (FLyrRasterSE)m_MapContext.getLayers().getLayer(layerName);

                                                            if ((rasterLayer1.getBufferFactory().getExtent().height() == rasterLayer2.getBufferFactory().getExtent().height()) && (rasterLayer1.getBufferFactory().getExtent().width() == rasterLayer2.getBufferFactory().getExtent().width())){// iguales){

                                                                    jTableVariables.actualizarVariable(row,s);

                                                                    jTableVariables.setEnEspera(false);

                                                                    s="";        

                                                            } else  s="";

                                                    }

                                            }

                                            //         Permitiendo  tama?os diferentes

                                            else{

                                                            jTableVariables.actualizarVariable(row,s);

                                                            jTableVariables.setEnEspera(false);

                                                       s="";        

                                            }                 

                                    }else{                                    

                                            //        var: almacena el nombre de la variable asociada al valor

                                               var=consultarVariable(s);

                                            jTextExpresion.insert(var,jTextExpresion.getCaretPosition());

                                            s="";

                                            }

                            }

                            else

                                    s = path.getLastPathComponent().toString();    

                           if (sParentName.equals("["+PluginServices.getText(this,"elementos_jtree")+", "+ PluginServices.getText(this,"constantes_jtree")+"]")){

                             if (m_Constants.containsKey(s)){

                                     s = (String) m_Constants.get(s);

                             }else{

                                     s = "";

                             }

                            }        

                            jTextExpresion.insert(s,jTextExpresion.getCaretPosition());

                            if (sParentName.equals("["+PluginServices.getText(this,"elementos_jtree")+", "+ PluginServices.getText(this,"funciones_jtree")+"]")){

                                    jTextExpresion.setCaretPosition(jTextExpresion.getCaretPosition() - 2);

                            }

                    }

         }

           /**

          * Agregar la variable y el valor a la tabla, haciendo la comprobacion del extent

          * @param valor

          * @return la variable asociada al valor-->capa[banda]

          */

         private String insertVariableToJTable(String valor){

                String layerBand,layerName;

                FLyrRasterSE rasterLayer1, rasterLayer2;

                String s;

                int filaAsignada = 0; 

                boolean yaAsignada=false;

                /* Antes de insertar la variable hay que comprobar si no esta marcada la casilla que no hay diferente extent

                caso no permitir distinto extent*/

                if (getJCheckExtent().isSelected()==false){                 

                                 if (getJTableVariables().getTableFormat().getRowCount()>0){

                                                         for (int i=0; i< getJTableVariables().getTableFormat().getRowCount(); i++)

                                                         {

                                                                 layerBand= getJTableVariables().getTableFormat().getValueAt(i,1).toString();

                                                                 if (!layerBand.equals("")){

                                                                         // primera variable asignada

                                                                         filaAsignada=i;

                                                                         break;

                                                                 }

                                                                 // si no hay ninguna asignada

                                                                 if (i==getJTableVariables().getTableFormat().getRowCount()-1){

                                                                          s=jTableVariables.InsertRow(null,valor);        

                                                                           getQWindowsHash().put(s,null);

                                                                           return s;

                                                                 }        

                                                         } // fin for

                                                         // Si la tabla no estaba vacia y habia algun elemento asignado

                                                         if (yaAsignada==false){

                                                                 // Primera variable de la tabla

                                                                 layerBand= getJTableVariables().getTableFormat().getValueAt(filaAsignada,1).toString();

                                                                 layerName = layerBand.substring(0,layerBand.indexOf("["));

                                                                 rasterLayer1 = (FLyrRasterSE)m_MapContext.getLayers().getLayer(layerName);

                                                                 // Variable que me pasan como argumento

                                                                 layerName = valor.substring(0,valor.indexOf("["));

                                                                 rasterLayer2 = (FLyrRasterSE)m_MapContext.getLayers().getLayer(layerName);

                                                                 // Se compara si tienen las mismas dimensiones

                                                                 if ((rasterLayer1.getBufferFactory().getExtent().height() == rasterLayer2.getBufferFactory().getExtent().height()) && (rasterLayer1.getBufferFactory().getExtent().width() == rasterLayer2.getBufferFactory().getExtent().width())    )// && (qWindow.getNY()== qWindow1.getNY())

                                                                 {

                                                                         s=jTableVariables.InsertRow(null,valor);

                                                                         getQWindowsHash().put(s,null);

                                                                         return s;

                                                                 }

                                                                 // no tienen las mismas dimensiones

                                                                 else return "";

                                                         } 

                                                 }

                                 else { 

                                                 // Inserto primera variable

                                         s=jTableVariables.InsertRow(null,valor);        

                                         getQWindowsHash().put(s,null);

                                         return s;

                                         }

                         } // Si la casilla esta seleccionada.

                else {

                         // Inserto la variable, no hay reestricciones de extent.

                         s=jTableVariables.InsertRow(null,valor);        

                          getQWindowsHash().put(s,null);

                          return s; 

                 }

                return "";

         }

         /**

         * Se utiliza para conocer si un determinado valor-->(capa[banda])

         * tiene una variable asociada, si no es as? se introduce y 

         * se le asigna una nueva variable

         *  

         * @param valor

         * @return el nombre de la variable asignada a ese valor

         */

         private String consultarVariable(String valor){

                 //obtiene la variable asociada a un valor

                 String s=jTableVariables.getVariableOf(valor);

                 //si es s=="" indica que ese valor no est? introducido en la tabla

                 if (s.equals("")){

                         String aux;

                         //aux contiene el nombre de la variable asignada a valor

                         aux=insertVariableToJTable(valor);

                         return aux;

                 } 

                 return s;

         }

         public void focusLost(FocusEvent e) {

                 if(e.getSource()==jTextExpresion){

                         jTableVariables.setEnEspera(false);

                         System.out.println("Evento del textarea:   "+jTableVariables.isEnEspera());

                 }

         }

         public void focusGained(FocusEvent e) {

        }

        /**

         * inicializa el parser y lo devuelve

         * @return parser

         */

        public JEP initializeParser(){

                parser=null;

                parser=getParser();

                return parser;

        }

        /**

         * @return parser 

         */

        public JEP getParser() {

                if (parser==null){

                        parser = new JEP();

                        parser.setAllowUndeclared(true);

                        parser.addStandardFunctions();

                }

                return parser;

        }

        /**

         * @return tabla hash con las variables definidas

         */

        public HashMap getQWindowsHash() {

                if (qWindowsHash==null)

                        qWindowsHash = new HashMap();

                return qWindowsHash;

        }

        /**

         * @return extent de salida

         */

        public GridExtent getOutputExtent() {

                if (outputExtent==null)

                        outputExtent= new GridExtent();

                return outputExtent;

        }

        /**

         * @return proceso de calculo

         */

        public GridMathProcess getGridMath() {

                if (gridMath==null)

                        gridMath = new GridMathProcess();

                return gridMath;

        }

        /**

         * @return calculatorDialog

         */

        public IWindow getCalculatorDialog() {

                return calculatorDialog;

        }

        /**

         * @return vista actual de la aplicacion

         */

        public View getView() {

                return view;

        }

        /**

         * @return panel de configuracion de salida

         */

        public OutputOptionsPanel getOptionsPanel() {

                if (optionsPanel==null)

                        optionsPanel = new OutputOptionsPanel(getView(),this);

                return optionsPanel;

        }        

}