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.util.List;

import org.gvsig.andami.IconThemeHelper;

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.gui.IView;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.fmap.mapcontext.MapContext;

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;

/**

 * Extensi?n encargada de limpiar la selecci?n.

 *

 */

public class ClearSelectionExtension extends Extension {

    @Override

    public void execute(String s) {

        ApplicationManager application = ApplicationLocator.getManager();

        IView view = (IView) application.getActiveComponent(ViewDocument.class);

        if (view == null) {

            return;

        }

        ViewDocument document = view.getViewDocument();

        if (s.equalsIgnoreCase("selection-clear-view")) {

            MapControl mapCtrl = view.getMapControl();

            FLayers layers = document.getMapContext().getLayers();

            List<FLayer> activeLayers = layers.getLayers(

                    FLayers.LAYER_ACTIVE

                            .and(FLayers.LAYER_AVALAIBLE)

                            .and(FLayers.LAYER_FLYRVECT)

            );

            List<FLayer> layersToDeselect;

            if (activeLayers.size() >= 1) {

                layersToDeselect = layers.getLayers(

                        FLayers.LAYER_ACTIVE

                                .and(FLayers.LAYER_AVALAIBLE)

                                .and(FLayers.LAYER_FLYRVECT)

                                .and(FLayers.LAYER_SELECTION_EMPTY.negate())

                );

            } else {

                layersToDeselect = layers.getLayers(

                        FLayers.LAYER_AVALAIBLE

                                .and(FLayers.LAYER_FLYRVECT)

                                .and(FLayers.LAYER_SELECTION_EMPTY.negate())

                );

            }

            clearSelectionOfView(layersToDeselect);

            mapCtrl.drawMap(false);

            document.setModified(true);

        }

    }

    private void clearSelectionOfView(List<FLayer> layers) {

        for (FLayer layer : layers) {

            FeatureStore featureStore;

            featureStore = ((FLyrVect) layer).getFeatureStore();

            try {

                featureStore.getFeatureSelection().deselectAll();

            } catch (DataException ex) {

                ex.printStackTrace();

            }

        }

    };

    @Override

    public boolean isVisible() {

        ApplicationManager application = ApplicationLocator.getManager();

        IView view = (IView) application.getActiveComponent(ViewDocument.class);

        if (view == null) {

            return false;

        }

        ViewDocument document = view.getViewDocument();

        MapContext mapa = document.getMapContext();

        return mapa.getLayers().getLayersCount() > 0;

    }

    @Override

    public boolean isEnabled() {

        ApplicationManager application = ApplicationLocator.getManager();

        IView view = (IView) application.getActiveComponent(ViewDocument.class);

        if (view == null) {

            return false;

        }

        ViewDocument document = view.getViewDocument();

        if( document == null ) {

            return false;

        }

        FLayers layers = document.getMapContext().getLayers();

        List<FLayer> activeLayers = layers.getLayers(

                FLayers.LAYER_ACTIVE

        );

        // if has active layers, at least one of them has to have selection

        if (activeLayers.size()>=1) {

            List<FLayer> activeLayersWithSelection = layers.getLayers(

                    FLayers.LAYER_ACTIVE

                            .and(FLayers.LAYER_AVALAIBLE)

                            .and(FLayers.LAYER_FLYRVECT)

                            .and(FLayers.LAYER_SELECTION_EMPTY.negate())

            );

            if (activeLayersWithSelection.size()>=1) {

                return true;

            } else{

                return false;

            }

        }

        List<FLayer> selectionLayers = layers.getLayers(

                        FLayers.LAYER_AVALAIBLE

                        .and(FLayers.LAYER_FLYRVECT)

                        .and(FLayers.LAYER_SELECTION_EMPTY.negate())

        );

        // if there are not active layers, at least one of all has to have selection

        if (selectionLayers.size() >= 1) {

            return true;

        }

        return false;

    }

    /**

     * @see org.gvsig.andami.plugins.IExtension#initialize()

     */

    @Override

    public void initialize() {

        IconThemeHelper.registerIcon("action", "edit-clear", this);

    }

}