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.shp;

import java.util.ArrayList;

import java.util.List;

import javax.swing.JOptionPane;

import org.gvsig.andami.plugins.Extension;

import org.gvsig.app.ApplicationLocator;

import org.gvsig.app.ApplicationManager;

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

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

import org.gvsig.fmap.dal.DataStore;

import org.gvsig.fmap.mapcontext.MapContext;

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

import org.gvsig.fmap.mapcontext.layers.operations.SingleLayer;

import org.gvsig.tools.dynobject.exception.DynMethodNotSupportedException;

public class saveEncodingExtension extends Extension {

    @Override

    public void initialize() {

    }

    @Override

    public void execute(String actionCommand) {

        FLayer[] layers = getActiveLayers();

        if( layers == null ) {

            return;

        }

        List<FLayer> problems = new ArrayList<>();

        for( FLayer layer : layers ) {

            if( layer instanceof SingleLayer ) {

                DataStore ds = ((SingleLayer) layer).getDataStore();

                try {

                    ds.invokeDynMethod("saveEncoding", null);

                } catch (DynMethodNotSupportedException ex) {

                    // Do nothing

                } catch (Throwable ex) {

                    logger.warn("Can't save encoding of layer '" + layer.getName() + "'.", ex);

                    problems.add(layer);

                }

            }

        }

        if( !problems.isEmpty() ) {

            StringBuilder builder = new StringBuilder();

            builder.append("\n");

            for( FLayer problem : problems ) {

                builder.append("- ").append(problem.getName()).append("\n");

            }

            ApplicationManager application = ApplicationLocator.getManager();

            application.messageDialog(

                "_There_have_been_problems_saving_the_encoding_of_the_following_layers:",

                new String[]{builder.toString()},

                "_Problems_saving_encoding_of_layer",

                JOptionPane.WARNING_MESSAGE,

                "_Problems_saving_encoding_of_layer"

            );

        }

    }

    @Override

    public boolean isEnabled() {

        FLayer[] layers = getActiveLayers();

        if( layers == null ) {

            return false;

        }

        for( FLayer layer : layers ) {

            try {

                if( layer instanceof SingleLayer ) {

                    DataStore ds = ((SingleLayer) layer).getDataStore();

                    if( ds.hasDynMethod("saveEncoding") ) {

                        return true;

                    }

                }

            } catch (Throwable ex) {

            }

        }

        return false;

    }

    @Override

    public boolean isVisible() {

        FLayer[] layers = getActiveLayers();

        if( layers == null ) {

            return false;

        }

        for( FLayer layer : layers ) {

            try {

                if( layer instanceof SingleLayer ) {

                    return true;

                }

            } catch (Throwable ex) {

            }

        }

        return false;

    }

    private FLayer[] getActiveLayers() {

        ApplicationManager application = ApplicationLocator.getManager();

        ViewDocument viewdoc = (ViewDocument) application.getActiveDocument(ViewManager.TYPENAME);

        if( viewdoc == null ) {

            return null;

        }

        MapContext map = viewdoc.getMapContext();

        if( !map.hasActiveLayers() ) {

            return null;

        }

        FLayer[] layers = viewdoc.getMapContext().getLayers().getActives();

        return layers;

    }

}