Application: gvSIG desktop

package org.gvsig.crs.gui.panels.wizard;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.ButtonGroup;

import javax.swing.JButton;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JRadioButton;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import org.gvsig.crs.CrsException;

import org.gvsig.crs.CrsFactory;

import org.gvsig.crs.ICrs;

import org.gvsig.crs.gui.dialog.ImportNewCrsDialog;

import com.iver.andami.PluginServices;

/**

 * Panel de definicin del Crs por el usuario

 * 

 *  @author Luisa Marina Fernandez Ruiz (luisam.fernandez@uclm.es)

 *

 */

public class DefCrsUsr extends JPanel implements ActionListener{

        private JPanel panel;

        //jbuton definido por gvsig

        private JButton btnCrsExistente;

        private JLabel lblCrs;

        private JRadioButton rbCrsExistente;

        private JRadioButton rbNuevoCrs;

        private JRadioButton rbCadenaWkt;

        private ButtonGroup crsGroup;

        private JTextArea txtAreaWkt;

        private JButton btnImportarWkt;

        private JScrollPane scrollWkt;

        private ICrs currentCrs;

        private int width=380;

        //290

        private static final long serialVersionUID = 1L;

        ICrs crs = null;

        boolean hasChanged = false;

        public DefCrsUsr(ICrs crs) {

                super();

                currentCrs = crs;

                initialize();

        }

        /*

         * Inicializa el panel de Definicin del Crs por el usuario

         */

        private void initialize() {

                this.setLayout(new BorderLayout());

                this.add(getPanel(),BorderLayout.CENTER);

                habilitarWkt(false);

        }

        /*

         * Agrega todos los elementos

         */

        public JPanel getPanel() {

                if(panel==null){

                        panel=new JPanel();

                        panel.setLayout(new GridBagLayout());

                        GridBagConstraints c = new GridBagConstraints();

                        c.fill = GridBagConstraints.BOTH;

                        c.weighty=0.1;

                        //c.ipady=100;

                        //establece el espacio superior, inferior, izquierdo y derecho

                        //entre cada componente

                        c.insets=new Insets(8,8,8,8);

                        //c.ipady =60;      //make this component tall

                        c.weightx = 0.75;

                        c.gridx = 0;

                        c.gridy = 0;

                        panel.add(getRbCrsExistente(),c);

                        c.weightx = 0.25;

                        c.gridx = 1;

                        c.gridy = 0;

                        panel.add(getLblCrs(),c);

                        c.fill = GridBagConstraints.EAST;

                        c.weightx=0.0;

                        c.gridx = 2;

                        c.gridy = 0;

                        panel.add(getBtnCrsExistente(),c);

                        c.fill = GridBagConstraints.BOTH;

                        c.weightx = 0.75;

                        c.gridx = 0;

                        c.gridy = 1;

                        panel.add(getRbNuevoCrs(),c);

                        c.gridx = 0;

                        c.gridy = 2;

                        panel.add(getRbCadenaWkt(),c);

//                        Agrupa los botones de opcion

                        agruparRadioButtons();

                        //Seleccin por defecto

                        getRbCrsExistente().setSelected(true);

                        c.gridx=2;

                    c.gridy=2;

                    c.weightx=0.0;

                    c.weighty=0.0;

                    c.fill = GridBagConstraints.NONE;

                    panel.add(getBtnImportarWkt(),c);

                        //vertical

                        c.fill=GridBagConstraints.VERTICAL;

                        c.anchor=GridBagConstraints.EAST;

                        c.gridx = 0;

                        c.gridy = 4;

                        c.gridwidth=3;

                        c.weighty=0.75;

                        panel.add(getScrollWkt(),c);

                }

                return panel;

        }

        /*

         * Agrupa los botones de opcin

         */

        private void agruparRadioButtons() {

                if (crsGroup==null){

                                crsGroup=new ButtonGroup();

                                //Agrupar los botones de opcion

                                crsGroup.add(getRbCrsExistente());

                                crsGroup.add(getRbNuevoCrs());

                                crsGroup.add(getRbCadenaWkt());

                        }

        }

        public JRadioButton getRbCadenaWkt() {

                if (rbCadenaWkt==null){

                        rbCadenaWkt=new JRadioButton(PluginServices.getText(this,"DefCrsUsr_wkt"));

                        rbCadenaWkt.addActionListener(this);

                        rbCadenaWkt.setEnabled(false);

                }

                return rbCadenaWkt;

        }

        public JRadioButton getRbCrsExistente() {

                if (rbCrsExistente==null){

                        rbCrsExistente=new JRadioButton(PluginServices.getText(this,"DefCrsUsr_existente"));

                        rbCrsExistente.addActionListener(this);

                }

                return rbCrsExistente;

        }

        public JRadioButton getRbNuevoCrs() {

                if (rbNuevoCrs==null){

                        rbNuevoCrs=new JRadioButton(PluginServices.getText(this,"DefCrsUsr_nuevo"));

                        rbNuevoCrs.addActionListener(this);

                }

                return rbNuevoCrs;

        }

        public JLabel getLblCrs() {

                if (lblCrs==null){

                        lblCrs=new JLabel(currentCrs.getAbrev());

                }

                return lblCrs;

        }

    /**

     * Activa o desactiva el botn y el cuadro de texto

     * @param b Si es False--> deshabilita

     */

        private void habilitarExistente(boolean b) {

                        getBtnCrsExistente().setEnabled(b);

                        getLblCrs().setEnabled(b);

        }

        private void habilitarWkt(boolean b){

                        getBtnImportarWkt().setEnabled(b);

                        getTxtAreaWkt().setEnabled(b);

        }

        /**

         * Inicilizar el boton importar la cadena WKT

         * @return

         */

        public JButton getBtnImportarWkt() {

                if(btnImportarWkt==null){

                        btnImportarWkt=new JButton();

                        btnImportarWkt.setText("...");

                        btnImportarWkt.addActionListener(this);

                        btnImportarWkt.setToolTipText(PluginServices.getText(this,"DefCrsUsr_importar_wkt"));

                        btnImportarWkt.setEnabled(false);

                }

                return btnImportarWkt;

        }

        public JButton getBtnCrsExistente() {

                if (btnCrsExistente==null){

                        btnCrsExistente=new JButton("...");

                        Dimension d=new Dimension(btnCrsExistente.getPreferredSize());

                        d.width=100;

                        btnCrsExistente.setSize(d);

                        btnCrsExistente.addActionListener(this);

                        btnCrsExistente.setToolTipText(PluginServices.getText(this,"DefCrsUsr_Seleccionar_Crs"));

                }

                return btnCrsExistente;

        }

        /**

         * Inicializar el area de texto donde se introduce la cadena WKT

         * @return

         */

        public JTextArea getTxtAreaWkt() {

                if(txtAreaWkt==null){

                        txtAreaWkt=new JTextArea();

                        txtAreaWkt.setLineWrap(true);

                        txtAreaWkt.setWrapStyleWord(true);

                        Dimension d=new Dimension(txtAreaWkt.getPreferredSize());

                        d.width=width;

                        txtAreaWkt.setSize(d);

                }

                return txtAreaWkt;

        }

        /*

         *Crea un panel de desplazamineto en el que se 

         *agrega el area de texto para que ste tenga barras de desplazamiento 

         */

        public JScrollPane getScrollWkt() {

                if (scrollWkt==null){

                        scrollWkt=new JScrollPane();

                        scrollWkt.setViewportView(getTxtAreaWkt());

                        scrollWkt.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

                        Dimension d=new Dimension(txtAreaWkt.getPreferredSize());

                        d.width=width;

                        scrollWkt.setSize(d);

                }

                return scrollWkt;

        }

        public void actionPerformed(ActionEvent e) {

                 if(e.getSource().equals(getRbCrsExistente())){

                         setHasChange(true);

                 habilitarExistente(true);

                 habilitarWkt(false);

         }else  if(e.getSource().equals(getRbNuevoCrs())){

                 setHasChange(true);

                 habilitarExistente(false);

                 habilitarWkt(false);                 

         }else  if(e.getSource().equals(getRbCadenaWkt())){

                 System.out.println("Has seleccionado: Crear WKT");

                 habilitarExistente(false);

                 habilitarWkt(true);

         }else if(e.getSource().equals(getBtnCrsExistente())){

                 System.out.println("boton Crs Existente");

                 ImportNewCrsDialog newCrs = new ImportNewCrsDialog("crs");

                 PluginServices.getMDIManager().addWindow(newCrs);

                 if (newCrs.getCode() != -1) {

                         getLblCrs().setText("EPSG:"+newCrs.getCode());

                         setCrs(newCrs.getCode());

                 }

         }else if(e.getSource().equals(getBtnImportarWkt())){

                 System.out.println("Boton Importar Wkt");

         }

        }

        public void setCrs(int code) {

                try {

                        crs = new CrsFactory().getCRS("EPSG:"+code);

                } catch (CrsException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }

        public ICrs getCrs() {

                return crs;

        }

        public void setHasChange(boolean change) {

                hasChanged = change;

        }

        public boolean getHasChanged() {

                return hasChanged;

        }

}