| gvSIG desktop 1

package org.gvsig.selectionTools;

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

 * 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.

 * 

 */

import org.gvsig.selectionTools.tools.PolyLineSelectListener;

import com.iver.andami.PluginServices;

import com.iver.andami.plugins.Extension;

import com.iver.andami.ui.mdiManager.IWindow;

import com.iver.cit.gvsig.fmap.MapContext;

import com.iver.cit.gvsig.fmap.MapControl;

import com.iver.cit.gvsig.fmap.layers.FLayer;

import com.iver.cit.gvsig.fmap.layers.FLyrVect;

import com.iver.cit.gvsig.fmap.tools.Behavior.Behavior;

import com.iver.cit.gvsig.fmap.tools.Behavior.MouseMovementBehavior;

import com.iver.cit.gvsig.fmap.tools.Behavior.PolylineBehavior;

import com.iver.cit.gvsig.project.documents.view.IProjectView;

import com.iver.cit.gvsig.project.documents.view.gui.View;

import com.iver.cit.gvsig.project.documents.view.toolListeners.StatusBarListener;

/**

 * <p>Extension to add support for selecting the geometries of the active vector layers that

 *  intersect with a polyline defined by the user.</p>

 *

 * @author Pablo Piqueras Bartolom? (pablo.piqueras@iver.es)

 */

public class SelectByPolylineExtension extends Extension {

        public static final String POLYLINE_SELECTION_TOOL_NAME = "polylineSelection";

        /*

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

         */

        public void initialize() {

                registerIcons();

        }

        private void registerIcons() {

                PluginServices.getIconTheme().registerDefault(

                        "polyline-cursor-icon",

                        this.getClass().getClassLoader().getResource("images/polyline-cursor-icon.png")

                );

                PluginServices.getIconTheme().registerDefault(

                        "select-by-polyline-icon",

                        this.getClass().getClassLoader().getResource("images/select-by-polyline-icon.png")

                );

        }

        /*

         * (non-Javadoc)

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

         */

        public void execute(String actionCommand) {

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

                        IWindow view = PluginServices.getMDIManager().getActiveWindow();

                        if (view instanceof View) {

                                // Selection by polyline

                                MapControl mc = ((View)view).getMapControl();

                                // If current's view MapControl doesn't have the "CircleSelection" tool, adds it

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

                                        PolyLineSelectListener polylineSelListener = new PolyLineSelectListener(mc);

                                        mc.addMapTool(POLYLINE_SELECTION_TOOL_NAME, new Behavior[] {new PolylineBehavior(polylineSelListener), new MouseMovementBehavior(new StatusBarListener(mc))});

                                }

                                mc.setTool(POLYLINE_SELECTION_TOOL_NAME);

                        }

                }

        }

        /*

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

         */

        public boolean isVisible() {

                com.iver.andami.ui.mdiManager.IWindow f = PluginServices.getMDIManager().getActiveWindow();

                if (f == null) {

                        return false;

                }

                if (f instanceof View) {

                        View vista = (View) f;

                        IProjectView model = vista.getModel();

                        MapContext mapa = model.getMapContext();

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

                }

                return false;

        }

        /*

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

         */

        public boolean isEnabled() {

                com.iver.andami.ui.mdiManager.IWindow f = PluginServices.getMDIManager().getActiveWindow();

                if (f == null) {

                        return false;

                }

                if (f instanceof View) {

                        View vista = (View) f;

                        IProjectView model = vista.getModel();

                        MapContext mapa = model.getMapContext();

                        FLayer layers[] = mapa.getLayers().getActives();

                        FLayer layer;

                        for (int i = 0; i < layers.length; i++) {

                                layer = layers[i];

                                if ((layer instanceof FLyrVect) && (layer.isAvailable()) && (layer.isActive()))

                                        return true;

                        }

                }

                return false;

        }

}