Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3 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., 51

 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us at info AT

 * gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.app.extension;

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 org.gvsig.andami.IconThemeHelper;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.plugins.Extension;

import org.gvsig.app.ApplicationLocator;

import org.gvsig.app.ApplicationManager;

import org.gvsig.app.addlayer.AddLayerDialog;

import org.gvsig.app.gui.WizardPanel;

import org.gvsig.app.project.documents.view.ViewDocument;

import org.gvsig.app.project.documents.view.gui.IView;

import org.gvsig.fmap.dal.serverexplorer.filesystem.swing.FilesystemExplorerAddLayerWizardPanel;

import org.gvsig.fmap.mapcontext.ViewPort;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.layers.FLayers;

import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect;

import org.gvsig.fmap.mapcontrol.MapControl;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

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

 * quieren anadir a la vista.

 *

 */

public class AddLayer extends Extension {

    private static final Logger logger = LoggerFactory.getLogger(AddLayer.class);

    private static ArrayList<Class<? extends WizardPanel>> wizardStack = null;

    static {

        AddLayer.wizardStack = new ArrayList<Class<? extends WizardPanel>>();

                // Anadimos el panel al wizard de cargar capa. (Esto es temporal hasta que

        // el actual sea totalmente extensible)

        AddLayer.addWizard(FilesystemExplorerAddLayerWizardPanel.class);

    }

    public static void addWizard(Class<? extends WizardPanel> wpClass) {

        AddLayer.wizardStack.add(wpClass);

    }

    private static WizardPanel getInstance(int i, MapControl mapControl)

            throws IllegalArgumentException, SecurityException,

            InstantiationException, IllegalAccessException,

            InvocationTargetException, NoSuchMethodException {

        Class<? extends WizardPanel> wpClass = AddLayer.wizardStack.get(i);

        Object[] params = {};

        WizardPanel wp = wpClass.getConstructor()

                .newInstance(params);

        wp.setMapCtrl(mapControl);

        wp.initWizard();

        return wp;

    }

    public boolean isVisible() {

        ApplicationManager application = ApplicationLocator.getManager();

        return application.getActiveDocument(ViewDocument.class) != null;

    }

    public void postInitialize() {

        super.postInitialize();

    }

    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 (proj != viewPort.getProjection()) {

                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());

            }

        }

    }

    public void execute(String actionCommand) {

        ApplicationManager application = ApplicationLocator.getManager();

        ViewDocument document = (ViewDocument) application.getActiveDocument(ViewDocument.class);

        if (document == null) {

            return;

        }

        IView theView = (IView) document.getMainComponent();

        MapControl mapControl = theView.getMapControl();

        this.addLayers(mapControl);

        mapControl.getMapContext().callLegendChanged();

        document.setModified(true);

    }

    public boolean isEnabled() {

        return true;

    }

    /**

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

     *

     * @return FOpenDialog

     */

    private AddLayerDialog createFOpenDialog(MapControl mapControl) {

        AddLayerDialog fopen = new AddLayerDialog();

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

            WizardPanel wp;

            try {

                wp = AddLayer.getInstance(i, mapControl);

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

            } catch (Exception e) {

                logger.warn("Can't create layer open dialog.",e);

            }

        }

        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) {

        wp.setMapCtrl(mapControl);

        wp.execute();

        return true;

    }

    /**

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

     *

     * Devuelve true si se han a�adido capas.

     * @param mapControl

     * @return 

     */

    public boolean addLayers(MapControl mapControl) {

        // create and show the modal fopen dialog

        AddLayerDialog fopen = null;

        try {

            fopen = createFOpenDialog(mapControl);

            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;

        } finally {

            if (fopen != null) {

                fopen.dispose();

                fopen = null;

            }

        }

    }

    public void initialize() {

        IconThemeHelper.registerIcon("action", "view-layer-add", this);

    }

}