Application: gvSIG desktop » gvSIG Linear Reference System

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2015 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 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., 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.lrs.app.showmeasures;

import org.apache.commons.lang3.StringUtils;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

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.mapcontext.layers.FLayer;

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

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

import org.gvsig.lrs.swing.impl.JLrsShowMeasuresParamsController;

/**

 * @author dmartinez

 *

 */

public class WiperMeasuresExtension extends Extension {

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

    private JLrsShowMeasuresParamsController panel;

    /*

     * (non-Javadoc)

     *

     * @see org.gvsig.andami.plugins.IExtension#execute(java.lang.String)

     */

    public void execute(String actionCommand) {

        if (StringUtils.equalsIgnoreCase(actionCommand, "wiper-measures")) {

            IView view = getActiveView();

            final MapContext mapContext = view.getMapControl().getMapContext();

            final GraphicLayer graphics = mapContext.getGraphicsLayer();

            graphics.removeGraphics(ShowMeasuresExtension.SHOW_MEASURES_GRAPHICS_ID);

            mapContext.invalidate();

        }

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public void initialize() {

        registerIcons();

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public boolean isEnabled() {

        IView view = getActiveView();

        FLyrVect activeLayer = getActiveLayer(view);

        if (panel == null && activeLayer != null) {

            return true;

        }

        return false;

    }

    /*

     * (non-Javadoc)

     *

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

     */

    public boolean isVisible() {

        ApplicationManager application = ApplicationLocator.getManager();

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

    }

    private void registerIcons() {

        IconThemeHelper.registerIcon("lrs", "wiper", this);

    }

    private IView getActiveView() {

        ApplicationManager application = ApplicationLocator.getManager();

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

        return view;

    }

    private FLyrVect getActiveLayer(IView vista) {

        if (vista != null) {

            ViewDocument viewDocument = vista.getViewDocument();

            FLayer[] actives = viewDocument.getMapContext().getLayers().getActives();

            if ((actives.length == 1) && (actives[0] instanceof FLyrVect)) {

                return (FLyrVect) actives[0];

            }

        }

        return null;

    }

}