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 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.mapcontext.MapContext;

import org.gvsig.fmap.mapcontrol.MapControl;

/**

 * Extensi?n que controla las operaciones de medida realizadas sobre la vista.

 *

 * @author Vicente Caballero Navarro

 */

public class MeasureExtension extends Extension {

    private void registerDistanceUnits() {

        MapContext.addDistanceUnit("Millas_Nauticas", "nmi", 1852);

        MapContext.addDistanceUnit("Decimetros", "dm", 0.1);

    }

    private void registerAreaUnits() {

        MapContext.addAreaUnit("Areas", "a", false, 10);

        MapContext.addAreaUnit("Hectareas", "ha", false, 100);

        MapContext.addAreaUnit("HanegadasV", "hgV", false, 28.8287);

        MapContext.addAreaUnit("HanegadasC", "hgC", false, 80.2467);

        MapContext.addAreaUnit("Decimetros", "dm", true, 0.1);

        MapContext.addAreaUnit("Acres", "acre", false, 63.6149);

        MapContext.addAreaUnit("Millas_Nauticas", "nmi", true, 1852);

    }

    /* (non-Javadoc)

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

     */

    public void initialize() {

        registerDistanceUnits();

        registerAreaUnits();

        IconThemeHelper.registerIcon("action", "view-query-distance", this);

        IconThemeHelper.registerIcon("action", "view-query-area", this);

        IconThemeHelper.registerIcon("action", "view-query-feature-angle", this);

    }

    /* (non-Javadoc)

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

     */

    public void execute(String s) {

        ApplicationManager application = ApplicationLocator.getManager();

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

        if (view == null) {

            return;

        }

        MapControl mapCtrl = view.getMapControl();

        if (s.equals("view-query-distance")) {

            mapCtrl.setTool("medicion");

        } else if (s.equals("view-query-area")) {

            mapCtrl.setTool("area");

        } else if (s.equals("view-query-feature-angle")) {

            mapCtrl.setTool("feature-angle");

        }

    }

    public boolean isEnabled() {

        ApplicationManager application = ApplicationLocator.getManager();

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

        if (view == null) {

            return false;

        }

        return true;

//        ViewDocument document = view.getViewDocument();

//        return document.getMapContext().hasActiveVectorLayers();

    }

    public boolean isVisible() {

        ApplicationManager application = ApplicationLocator.getManager();

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

        if (view == null) {

            return false;

        }

        return true;

//        ViewDocument document = view.getViewDocument();

//        MapContext mapa = document.getMapContext();

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

    }

}