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.

 */

package com.iver.cit.gvsig;

import java.awt.Component;

import java.lang.reflect.InvocationTargetException;

import java.util.ArrayList;

import javax.swing.JOptionPane;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import com.hardcode.driverManager.DriverManager;

import com.hardcode.driverManager.WriterManager;

import com.hardcode.gdbms.driver.exceptions.FileNotFoundDriverException;

import com.iver.andami.PluginServices;

import com.iver.andami.plugins.Extension;

import com.iver.cit.gvsig.addlayer.AddLayerDialog;

import com.iver.cit.gvsig.addlayer.fileopen.FileOpenWizard;

import com.iver.cit.gvsig.addlayer.fileopen.solve.FileNotFoundSolve;

import com.iver.cit.gvsig.addlayer.fileopen.vectorial.VectorialFileOpen;

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

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

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

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.fmap.layers.LayerFactory;

import com.iver.cit.gvsig.gui.WizardPanel;

import com.iver.cit.gvsig.project.documents.ProjectDocument;

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

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

import com.iver.utiles.extensionPoints.ExtensionPoints;

import com.iver.utiles.extensionPoints.ExtensionPointsSingleton;

/**

 * Extensi�n que abre un di�logo para seleccionar la capa o capas que se quieren

 * a�adir a la vista.

 *

 * @author Fernando Gonz�lez Cort�s

 */

public class AddLayer extends Extension {

        public AddLayerDialog fopen = null;

        private static ArrayList wizardStack = null;

        static {

                AddLayer.wizardStack = new ArrayList();

                // A�adimos el panel al wizard de cargar capa. (Esto es temporal hasta que

    // el actual sea totalmente extensible)

                AddLayer.addWizard(FileOpenWizard.class);

        }

        public static void addWizard(Class wpClass) {

                AddLayer.wizardStack.add(wpClass);

        }

        public static WizardPanel getInstance(int i)

                        throws IllegalArgumentException, SecurityException,

                        InstantiationException, IllegalAccessException,

                        InvocationTargetException, NoSuchMethodException {

                Class wpClass = (Class) AddLayer.wizardStack.get(i);

                Class[] args = {};

                Object[] params = {};

                WizardPanel wp = (WizardPanel) wpClass.getConstructor(args)

                                .newInstance(params);

                wp.initWizard();

                return wp;

        }

        /**

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

         */

        public boolean isVisible() {

                com.iver.andami.ui.mdiManager.IWindow window = PluginServices.getMDIManager()

                                                                                                                         .getActiveWindow();

                if (window == null) {

                        return false;

                }

                // Any view derived from BaseView should have AddLayer available

                IView view;

                try {

                        view = (IView)window;

                }

                catch (ClassCastException e) {

                    return false;

                }

                if (view == null)

                        return false;

                BaseView baseView = (BaseView)view;

                return (baseView != null);

        }

        /**

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

         */

        public void postInitialize() {

                LayerFactory.initialize();

                DriverManager dm=LayerFactory.getDM();

                PluginServices.addLoaders(dm.getDriverClassLoaders());

                WriterManager wm=LayerFactory.getWM();

                PluginServices.addLoaders(wm.getWriterClassLoaders());

                ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance();

                extensionPoints.add("FileExtendingOpenDialog", "FileOpenVectorial", VectorialFileOpen.class);

        }

        public static void checkProjection(FLayer lyr, ViewPort viewPort) {

                if (lyr instanceof FLayers){

                        FLayers layers=(FLayers)lyr;

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

                                checkProjection(layers.getLayer(i),viewPort);

                        }

                }

                if (lyr instanceof FLyrVect) {

                        FLyrVect lyrVect = (FLyrVect) lyr;

                        IProjection proj = lyr.getProjection();

                        // Comprobar que la projecci�n es la misma que la vista

                        if (proj == null) {

                                // SUPONEMOS que la capa est� en la proyecci�n que

                                // estamos pidiendo (que ya es mucho suponer, ya).

                                lyrVect.setProjection(viewPort.getProjection());

                                return;

                        }

                        int option = JOptionPane.YES_OPTION;

                        if (!viewPort.getProjection().getAbrev().equals(proj.getAbrev())) {

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

                                                .getText(AddLayer.class, "reproyectar_aviso")+"\n"+ PluginServices.getText(AddLayer.class,"Capa")+": "+lyrVect.getName(), PluginServices

                                                .getText(AddLayer.class, "reproyectar_pregunta"),

                                                JOptionPane.YES_NO_OPTION);

                                if (option != JOptionPane.OK_OPTION) {

                                        return;

                                }

                                ICoordTrans ct = proj.getCT(viewPort.getProjection());

                                lyrVect.setCoordTrans(ct);

                                System.err.println("coordTrans = " + proj.getAbrev() + " "

                                                + viewPort.getProjection().getAbrev());

                        }

                }

        }

        /**

         * @see com.iver.andami.plugins.IExtension#execute(java.lang.String)

         */

        public void execute(String actionCommand) {

                // Project project = ((ProjectExtension)

                // PluginServices.getExtension(ProjectExtension.class)).getProject();

                BaseView theView = (BaseView) PluginServices.getMDIManager().getActiveWindow();

                MapControl mapControl=theView.getMapControl();

                this.addLayers(mapControl);

                mapControl.getMapContext().callLegendChanged();

                ((ProjectDocument)theView.getModel()).setModified(true);

        }

        /**

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

         */

        public boolean isEnabled() {

                return true;

        }

        /**

         * Creates FOpenDialog, and adds file tab, and additional registered tabs

         *

         * @return FOpenDialog

         */

        private AddLayerDialog createFOpenDialog() {

                fopen = new AddLayerDialog();

                // after that, all registerez tabs (wizardpanels implementations)

                for (int i = 0; i < wizardStack.size(); i++) {

                        WizardPanel wp;

                        try {

                                wp = AddLayer.getInstance(i);

                                fopen.addWizardTab(wp.getTabName(), wp);

                        } catch (IllegalArgumentException e) {

                                e.printStackTrace();

                        } catch (SecurityException e) {

                                e.printStackTrace();

                        } catch (InstantiationException e) {

                                e.printStackTrace();

                        } catch (IllegalAccessException e) {

                                e.printStackTrace();

                        } catch (InvocationTargetException e) {

                                e.printStackTrace();

                        } catch (NoSuchMethodException e) {

                                e.printStackTrace();

                        }

                }// for

                return fopen;

        }

        /**

         * Adds to mapcontrol all layers selected by user in the specified WizardPanel.

         *

         * @param mapControl

         *         MapControl on which we want to load user selected layers.

         * @param wizardPanel

         *         WizardPanel where user selected the layers to load

         * @return

         */

        private boolean loadGenericWizardPanelLayers(MapControl mapControl, WizardPanel wp) {

                FLayer lyr = null;

                wp.setMapCtrl(mapControl);

                wp.execute();

                lyr = wp.getLayer();

                if((lyr != null) && !(lyr.isOk())){

                        //if the layer is not okay (it has errors) process them

                        processErrorsOfLayer(lyr, mapControl);

                }

                if (lyr != null) {

                        lyr.setVisible(true);

                        mapControl.getMapContext().beginAtomicEvent();

                        checkProjection(lyr, mapControl.getViewPort());

                        try {

                                mapControl.getMapContext().getLayers().addLayer(lyr);

                        } catch (CancelationException e) {

                                // TODO Auto-generated catch block

                                e.printStackTrace();

                        }

                        mapControl.getMapContext().endAtomicEvent();

                        return true;

                }

                return false;

        }

        /**

         * This method process the errors found in a layer

         * @param lyr

         * @param mapControl

         */

        private void processErrorsOfLayer(FLayer lyr, MapControl mapControl){

//                List errors = lyr.getErrors();

//                wp.callError(null);

                mapControl.getMapContext().callNewErrorEvent(null);

        }

        /**

         * Abre dialogo para a�adir capas y las a�ade en mapControl

         *

         * Devuelve true si se han a�adido capas.

         */

        public boolean addLayers(MapControl mapControl) {

                // create and show the modal fopen dialog

                fopen = createFOpenDialog();

                PluginServices.getMDIManager().addWindow(fopen);

                if (fopen.isAccepted()) {

                                if (fopen.getSelectedTab() instanceof WizardPanel) {

                                WizardPanel wp = (WizardPanel) fopen.getSelectedTab();

                                return loadGenericWizardPanelLayers(mapControl, wp);

                        } else {

                                JOptionPane.showMessageDialog((Component) PluginServices

                                                .getMainFrame(), PluginServices.getText(this,"ninguna_capa_seleccionada"));

                        }

                }

                return false;

        }

        /* (non-Javadoc)

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

         */

        public void initialize() {

                //Listener para resolver un FileDriverNotFoundException

                LayerFactory.addSolveErrorForLayer(FileNotFoundDriverException.class,new FileNotFoundSolve());

                PluginServices.getIconTheme().registerDefault(

                                "layer-add",

                                this.getClass().getClassLoader().getResource("images/addlayer.png")

                        );

        }

}