Application: gvSIG desktop

/* 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

 */

package com.iver.cit.gvsig;

import java.awt.Component;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.Reader;

import java.net.MalformedURLException;

import java.net.URL;

import java.text.DateFormat;

import java.util.Date;

import java.util.prefs.Preferences;

import javax.swing.JFileChooser;

import javax.swing.JOptionPane;

import org.exolab.castor.xml.MarshalException;

import org.exolab.castor.xml.Marshaller;

import org.exolab.castor.xml.ValidationException;

import com.iver.andami.Launcher;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.Messages;

import com.iver.andami.messages.NotificationManager;

import com.iver.andami.plugins.Extension;

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

import com.iver.cit.gvsig.gui.layout.Layout;

import com.iver.cit.gvsig.gui.project.OpenException;

import com.iver.cit.gvsig.gui.project.ProjectWindow;

import com.iver.cit.gvsig.project.Project;

import com.iver.cit.gvsig.project.ProjectFactory;

import com.iver.cit.gvsig.project.ProjectMap;

import com.iver.cit.gvsig.project.ProjectView;

import com.iver.utiles.GenericFileFilter;

import com.iver.utiles.XMLEntity;

import com.iver.utiles.extensionPoints.ExtensionPoint;

import com.iver.utiles.extensionPoints.ExtensionPoints;

import com.iver.utiles.extensionPoints.ExtensionPointsSingleton;

import com.iver.utiles.xmlEntity.generate.XmlTag;

/**

 * Extension que proporciona controles para crear proyectos nuevos, abrirlos y

 * guardarlos. Adem?s los tipos de tabla que soporta el proyecto son a?adidos

 * en esta clase.

 *

 * @author Fernando Gonz?lez Cort?s

 */

public class ProjectExtension extends Extension {

        private String lastPath;

        private static String projectPath = null;

        private ProjectWindow projectFrame;

        private Project p;

        /**

         * @see com.iver.mdiApp.plugins.IExtension#initialize()

         */

        public void initialize() {

            try {

            Class.forName("javax.media.jai.EnumeratedParameter");

        } catch (ClassNotFoundException e) {

            NotificationManager.addError("La m?quina virtual con la que se ejecuta gvSIG no tiene JAI instalado", e);

        }

                LayerFactory.setWritersPath(PluginServices.getPluginServices(this)

                                  .getPluginDirectory()

                                  .getAbsolutePath() +

                                  File.separator + "drivers");

        LayerFactory.setDriversPath(PluginServices.getPluginServices(this)

                                  .getPluginDirectory()

                                  .getAbsolutePath() +

                                  File.separator + "drivers");

        // Recuperamos el ?ltimo argumento, que se supone

        // que ser? el fichero .gvp que queremos abrir.

        // (por enmedio pueden venir o no otros argumentos,

        // por ejemplo el idioma)

        // TODO: Aqu? Jaume podr?a meter lo del backup del proyecto

        // que ha hecho para ValenciaUrban?stica

                /*

                pe = (ProjectExtension) PluginServices.getExtension(com.iver.cit.gvsig.ProjectExtension.class);

                if (projectFile.length()!=0){

                        p=pe.readProject(projectFile);

                }

                else

                        p = restorePreviousProject();

                pe.setProject(p); */

        String[] theArgs = PluginServices.getArguments();

        String lastArg = theArgs[theArgs.length-1];

        if ((lastArg.endsWith(".gvp")) ||

                        (lastArg.endsWith(".GVP")))

        {

                PluginServices.getLogger().debug("Intentando cargar el proyecto " + lastArg);

                //File projectFile = new File(lastArg);

                p = readProject(lastArg);

                PluginServices.getMainFrame().setTitle(p.getName());

                projectPath = lastArg;

        }

        else

        {

                        p = ProjectFactory.createProject();

                        p.setName(PluginServices.getText(this, "untitled"));

                        p.setModified(false);

                        PluginServices.getMainFrame().setTitle(PluginServices.getText(this, "sin_titulo"));

        }

        initilizeDocumentActionsExtensionPoint();

            projectFrame = new ProjectWindow(this);

                projectFrame.setProject(p);

                showProjectWindow();

        }

        /**

         * Muestra la ventana con el gestor de proyectos.

         */

        public void showProjectWindow() {

                PluginServices.getMDIManager().addWindow(projectFrame);

                if (Project.getSeedProjectWindow()!=null) {

                        PluginServices.getMDIManager().changeWindowInfo(projectFrame, Project.getSeedProjectWindow());

                }

        }

        /**

         * Guarda el proyecto actual en disco.

         */

        private boolean guardar() {

                boolean saved=false;

//                if (p.getPath() == null) {

                if (projectPath == null) {

                        saved=guardarDialogo();

                } else {

                        saved=writeProject(new File(projectPath), p); //new File(p.getPath()), p);

                        projectFrame.refreshControls();

                }

                return saved;

        }

        private boolean guardarDialogo(){

                boolean saved=false;

                JFileChooser jfc = new JFileChooser();

                jfc.addChoosableFileFilter(new GenericFileFilter("gvp",

                                PluginServices.getText(this, "tipo_fichero_proyecto")));

                if (jfc.showSaveDialog((Component) PluginServices.getMainFrame()) == JFileChooser.APPROVE_OPTION) {

                        File file=jfc.getSelectedFile();

                        if (!(file.getPath().toLowerCase().endsWith(".gvp"))){

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

                        }

                        saved=writeProject(file, p);

                        projectFrame.refreshControls();

                }

                return saved;

        }

        /**

         * Guarda si el proyecto ha sido modificado.

         *

         * @return True si se ha guardado correctamente.

         */

        private boolean modificado() {

                if (p.isModified()) {

                ///if (true) {

                        //TODO de momento se queda como modificado siempre menos cuando est? totalmente vacio que se tomar? como no modificado,

                        //para poder controlar perfectamente cuando un proyecto ha sido modificado

                        //hay que recoger los eventos de cambio de leyenda, cambio de extent, a?adir una capa, etc que se encuentran en FMap.

                        int res = JOptionPane.showConfirmDialog((Component) PluginServices.getMainFrame(),

                                        PluginServices.getText(this, "guardar_cambios"),

                                        "gvSIG",

                                        JOptionPane.YES_NO_CANCEL_OPTION,

                                        JOptionPane.INFORMATION_MESSAGE);

                        if (res == JOptionPane.YES_OPTION) {

                                guardar();

                        } else if (res == JOptionPane.CANCEL_OPTION) {

                                return false;

                        }

                }

                return true;

        }

        /**

         * @see com.iver.mdiApp.plugins.IExtension#updateUI(java.lang.String)

         */

        public void execute(String actionCommand) {

                if (actionCommand.equals("NUEVO")) {

                        //Si est? modificado se pregunta si se quiere guardar el anterior

                        if (!modificado()) {

                                return;

                        }

                        ProjectView.numViews=0;

            ProjectMap.numMaps = 0;

                        PluginServices.getMDIManager().closeAllWindows();

                        p = ProjectFactory.createProject();

                        p.setName(PluginServices.getText(this, "untitled"));

                        p.setModified(false);

                        projectFrame.setProject(p);

                        showProjectWindow();

                        PluginServices.getMainFrame().setTitle(PluginServices.getText(this, "sin_titulo"));

                } else if (actionCommand.equals("ABRIR")) {

                        //Si est? modificado se pregunta si se quiere guardar el anterior

                        if (!modificado()) {

                                ProjectView.numViews=0;

                ProjectMap.numMaps = 0;

                                return;

                        }

                        if (lastPath == null) {

                                Preferences prefs = Preferences.userRoot().node( "gvsig.foldering" );

                                lastPath = prefs.get("ProjectsFolder", null);

                        }

                        JFileChooser jfc = new JFileChooser(lastPath);

                        jfc.addChoosableFileFilter(new GenericFileFilter("gvp",

                                        PluginServices.getText(this, "tipo_fichero_proyecto")));

                        if (jfc.showOpenDialog((Component) PluginServices.getMainFrame()) == JFileChooser.APPROVE_OPTION) {

                                ProjectView.numViews=0;

                ProjectMap.numMaps = 0;

                                PluginServices.getMDIManager().closeAllWindows();

                                File projectFile = jfc.getSelectedFile();

                                Project o = readProject(projectFile);

                                setPath(projectFile.getAbsolutePath());

                                lastPath = getPath();

                                if (o != null) {

                                        p = o;

                                }

                                projectFrame.setProject(p);

                                PluginServices.getMainFrame().setTitle(p.getName());

                                projectFrame.refreshControls();

                                showProjectWindow();

                        }

                } else if (actionCommand.equals("GUARDAR")) {

                        guardar();

                } else if (actionCommand.equals("GUARDAR_COMO")) {

                        guardarDialogo();

                } else if (actionCommand.equals("SALIR")){

                        int option = JOptionPane.showConfirmDialog((Component)PluginServices.getMainFrame(),

                                        Messages.getString("MDIFrame.quiere_salir"),

                                        Messages.getString("MDIFrame.salir"),

                                        JOptionPane.YES_NO_OPTION);

                        if (option == JOptionPane.YES_OPTION) {

                                Launcher.closeApplication();

                        }

                } else if (actionCommand.compareTo("OPENTEMPLATE")==0){

                        openLayout();

                }

        }

        public void openLayout() {

                //Project project = ((ProjectExtension) PluginServices.getExtension(ProjectExtension.class)).getProject();

                Layout layout=null;

                JFileChooser jfc = new JFileChooser();

                jfc.addChoosableFileFilter(new GenericFileFilter("gvt",

                                PluginServices.getText(this, "plantilla")));

                if (jfc.showOpenDialog((Component) PluginServices.getMainFrame()) == JFileChooser.APPROVE_OPTION) {

                        File file=jfc.getSelectedFile();

                        if (!(file.getPath().endsWith(".gvt") || file.getPath().endsWith(".GVT"))){

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

                        }

                        try {

                                File xmlFile = new File(file.getAbsolutePath());

                                FileReader reader;

                                reader = new FileReader(xmlFile);

                                XmlTag tag = (XmlTag) XmlTag.unmarshal(reader);

                                try {

                                        layout = Layout.createLayout(new XMLEntity(tag),p);

                                } catch (OpenException e) {

                                        e.showError();

                                }

                                //fPanelLegendManager.setRenderer(LegendFactory.createFromXML(new XMLEntity(tag)));

                        } catch (FileNotFoundException e) {

                                NotificationManager.addError(PluginServices.getText(this, "Al_leer_la_leyenda"), e);

                        } catch (MarshalException e) {

                                NotificationManager.addError(PluginServices.getText(this, "Al_leer_la_leyenda"), e);

                        } catch (ValidationException e) {

                                NotificationManager.addError(PluginServices.getText(this, "Al_leer_la_leyenda"), e);

                        }

                        ProjectMap pmap = ProjectFactory.createMap(file.getName());

                        pmap.setModel(layout);

                        pmap.getModel().setProjectMap(pmap);

                        p.addMap(pmap);

                        PluginServices.getMDIManager().addWindow(layout);

                }

        }

        /**

         * Escribe el proyecto en XML.

         *

         * @param file Fichero.

         * @param p Proyecto.

         */

        public boolean writeProject(File file, Project p) {

                if( file.exists()){

                        int resp = JOptionPane.showConfirmDialog(

                                        (Component) PluginServices.getMainFrame(),PluginServices.getText(this,"fichero_ya_existe_seguro_desea_guardarlo"),

                                        PluginServices.getText(this,"guardar"), JOptionPane.YES_NO_OPTION);

                        if (resp != JOptionPane.YES_OPTION) {

                                return false;

                        }

                }

                // write it out as XML

                try {

                        FileWriter writer = new FileWriter(file.getAbsolutePath());

                        Marshaller m = new Marshaller(writer);

                        m.setEncoding("ISO-8859-1");

                        p.setName(file.getName());

                        // p.setPath(file.toString());

                        p.setModificationDate(DateFormat.getDateInstance().format(new Date()));

                        p.setModified(false);

                        m.marshal(p.getXMLEntity().getXmlTag());

                        PluginServices.getMainFrame().setTitle(file.getName());

                        setPath(file.toString());

                } catch (Exception e) {

                        NotificationManager.addError("Error guardando el proyecto", e);

                        return false;

                }

                return true;

        }

        public Project readProject(String path) {

                BufferedReader reader =null;

                try {

                URL url=null;

                        url = new URL(path);

                        reader = new BufferedReader(new InputStreamReader(url

                        .openStream()));

                } catch (MalformedURLException e) {

                        File file=new File(path);

                        return readProject(file);

                } catch (IOException e) {

                        e.printStackTrace();

                }

                Project p=readProject(reader);

                ProjectExtension.setPath(path); //p.setPath(null);

                return p;

        }

        public Project readProject(File file) {

                File xmlFile = new File(file.getAbsolutePath());

                FileReader reader=null;

                try {

                        reader = new FileReader(xmlFile);

                } catch (FileNotFoundException e) {

                        JOptionPane.showMessageDialog((Component)PluginServices.getMainFrame(),PluginServices.getText(this, "fichero_incorrecto"));

                        return null;

                }

                return readProject(reader);

                }

        /**

         * Lee del XML el proyecto.<br><br>

         *

         * Reads the XML of the project.<br>

         * It returns n project object holding all needed info that is not linked to the Project Dialog. <br>In case you want the project to be

         * linked to the window you must to set this object to the extension:<br>

         *

         * <b>Example:</b><br>

         *

         * ...<br>

         * ...<br>

         * Project p = ProjectExtension.readProject(projectFile);<br>

         * ProjectExtension.setProject(p);

         * ...<br>

         * ...<br>

         * @param file Fichero.

         *

         * @return Project

         *

         */

        public Project readProject(Reader reader) {

                Project proj = null;

                try {

//                        File xmlFile = new File(file.getAbsolutePath());

//                        FileReader reader;

//                        reader = new FileReader(xmlFile);

                        XmlTag tag = (XmlTag) XmlTag.unmarshal(reader);

                        XMLEntity xml=new XMLEntity(tag);

                        String VERSION=xml.getStringProperty("VERSION");

                        try {

                                // if ((VERSION!=null) && (VERSION.equals("0.5") || VERSION.equals("0.4") || (VERSION.indexOf("GISPLANET") != -1))){

                                if (VERSION != null) {

                                        proj = Project.createFromXML(xml);

                                }else{

                                        proj = Project.createFromXML03(new XMLEntity(tag));

                                }

                                return proj;

                        } catch (OpenException e){

                                e.showError();

                                //NotificationManager.addInfo("Al leer el proyecto", e);

                        }

                }  catch (MarshalException e) {

                        JOptionPane.showMessageDialog((Component)PluginServices.getMainFrame(),PluginServices.getText(this, "formato_incorrecto"));

                        //NotificationManager.addError("Al leer el proyecto", e);

                } catch (ValidationException e) {

                        JOptionPane.showMessageDialog((Component)PluginServices.getMainFrame(),PluginServices.getText(this, "formato_incorrecto"));

                        //NotificationManager.addError("Al leer el proyecto", e);

                }

                return null;

        }

        /**

         * Devuelve el proyecto.

         *

         * @return Proyecto.

         */

        public Project getProject() {

                return p;

        }

        /**

         * @see com.iver.andami.plugins.IExtension#isEnabled()

         */

        public boolean isEnabled() {

                return true;

        }

        /**

         * @see com.iver.andami.plugins.IExtension#isVisible()

         */

        public boolean isVisible() {

                return true;

        }

        /**

         * Sets the project

         * @param p

         */

        public void setProject(Project p){

                projectFrame.setProject(p);

                this.p=p;

        }

        //Finalizar y preguntar si se quiere guardar el proyecto o cancelar.

        public void terminate() {

                long t1,t2;

                t1 = System.currentTimeMillis();

                //if (getProject().hasChanged()) {

                        int option = JOptionPane.showConfirmDialog((Component)PluginServices.getMainFrame(),PluginServices.getText(this,"guardar_cambios"),

                                        PluginServices.getText(this,"guardar_proyecto"),

                                        JOptionPane.YES_NO_OPTION);

                        if (option == JOptionPane.YES_OPTION) {

                                if (!guardar())

                                        terminate();

                        }

                //}

                t2 = System.currentTimeMillis();

                System.err.println("ProjectExtension.terminate() " +  (t2-t1) + "milisecs");

        }

        private void initilizeDocumentActionsExtensionPoint() {

                ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance();

                if (!extensionPoints.containsKey("DocumentActions_View")) {

                        extensionPoints.put(

                                new ExtensionPoint(

                                        "DocumentActions_View",

                                        "Context menu options of the view document list" +

                                                " in the project window "+

                                                "(register instances of " +

                                                "com.iver.cit.gvsig.project.AbstractDocumentContextMenuAction)"

                                )

                        );

                }

                if (!extensionPoints.containsKey("DocumentActions_Table")) {

                        extensionPoints.put(

                                new ExtensionPoint(

                                        "DocumentActions_Table",

                                        "Context menu options of the table document list" +

                                                " in the project window "+

                                                "(register instances of " +

                                                "com.iver.cit.gvsig.project.AbstractDocumentContextMenuAction)"

                                )

                        );

                }

                if (!extensionPoints.containsKey("DocumentActions_Map")) {

                        extensionPoints.put(

                                new ExtensionPoint(

                                        "DocumentActions_Map",

                                        "Context menu options of the map document list" +

                                                " in the project window "+

                                                "(register instances of " +

                                                "com.iver.cit.gvsig.project.AbstractDocumentContextMenuAction)"

                                )

                        );

                }

        }

        public static String getPath() {

                return projectPath;

        }

        public static void setPath(String path) {

                projectPath = path;

        }

}