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.selectiontools.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.app.project.documents.view.toolListeners.StatusBarListener;

import org.gvsig.fmap.mapcontext.MapContext;

import org.gvsig.fmap.mapcontrol.MapControl;

import org.gvsig.fmap.mapcontrol.tools.Behavior.Behavior;

import org.gvsig.fmap.mapcontrol.tools.Behavior.MouseMovementBehavior;

import org.gvsig.fmap.mapcontrol.tools.Behavior.PolylineBehavior;

import org.gvsig.selectiontools.app.extension.tools.PolyLineSelectListener;

/**

 * Extension to add support for selecting the geometries of the active vector

 * layers that intersect with a polyline defined by the user.

 */

public class SelectByPolylineExtension extends Extension {

    public static final String POLYLINE_SELECTION_TOOL_NAME

            = "polylineSelection";

    public void initialize() {

        IconThemeHelper.registerIcon("action", "selection-select-by-polyline", this);

        IconThemeHelper.registerIcon("cursor", "cursor-select-by-polyline", this);

    }

    public void execute(String actionCommand) {

        ApplicationManager application = ApplicationLocator.getManager();

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

        if (view == null) {

            return;

        }

        if (actionCommand.equals("SELPOLYLINE")) {

            MapControl mc = view.getMapControl();

            /*

             If current's view MapControl doesn't have the

             "polylineSelection" tool, adds it

             */

            if (!mc.getNamesMapTools().containsKey(POLYLINE_SELECTION_TOOL_NAME)) {

                PolyLineSelectListener polylineSelListener = new PolyLineSelectListener(mc);

                mc.addBehavior(

                        POLYLINE_SELECTION_TOOL_NAME,

                        new Behavior[]{

                            new PolylineBehavior(polylineSelListener),

                            new MouseMovementBehavior(new StatusBarListener(mc))

                        });

            }

            mc.setTool(POLYLINE_SELECTION_TOOL_NAME);

        }

    }

    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;

    }

    public boolean isEnabled() {

        ApplicationManager application = ApplicationLocator.getManager();

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

        if (view == null) {

            return false;

        }

        ViewDocument document = view.getViewDocument();

        return document.getMapContext().hasActiveVectorLayers();

    }

}