| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package org.gvsig.graph.tools;

import java.awt.Cursor;

import java.awt.geom.Point2D;

import java.io.IOException;

import javax.swing.ImageIcon;

import javax.swing.JOptionPane;

import org.gvsig.graph.core.GvModifiedCost;

import org.gvsig.graph.core.Network;

import com.iver.andami.PluginServices;

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

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.ShapeFactory;

import com.iver.cit.gvsig.fmap.core.v02.FConstant;

import com.iver.cit.gvsig.fmap.core.v02.FSymbol;

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

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

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

import com.iver.cit.gvsig.fmap.rendering.FGraphic;

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

import com.iver.cit.gvsig.fmap.tools.Events.PointEvent;

import com.iver.cit.gvsig.fmap.tools.Listeners.PointListener;

public class BarrierListener implements PointListener {

        private MapControl mapCtrl;

        private int idSymbolBarrier = -1;

        private Cursor cur = java.awt.Cursor

                        .getPredefinedCursor(Cursor.HAND_CURSOR);

        public BarrierListener(MapControl mc) {

                this.mapCtrl = mc;

        }

        /*

         * (non-Javadoc)

         * 

         * @see org.gvsig.fmap.tools.Listeners.PointListener#point(org.gvsig.fmap.tools.Events.PointEvent)

         *      The PointEvent method bring you a point in pixel coordinates. You

         *      need to transform it to world coordinates. The class to do

         *      conversions is ViewPort, obtained thru the MapContext of mapCtrl.

         */

        public void point(PointEvent event) throws BehaviorException {

                Point2D pReal = mapCtrl.getMapContext().getViewPort().toMapPoint(

                                event.getPoint());

                SingleLayerIterator it = new SingleLayerIterator(mapCtrl

                                .getMapContext().getLayers());

                while (it.hasNext()) {

                        FLayer aux = it.next();

                        if (!aux.isActive())

                                continue;

                        Network net = (Network) aux.getProperty("network");                        

                        if (net != null) {

                                Point2D nearestPoint = new Point2D.Double();

                                double realTol = mapCtrl.getViewPort().toMapDistance(

                                                FlagListener.pixelTolerance);

                                int idArc = net.findClosestArc(pReal.getX(), pReal.getY(),

                                                realTol, nearestPoint);

                                if (idArc == -1) {

                                        JOptionPane.showMessageDialog(null, "No est? sobre la red");

                                        return;

                                }

                                GvModifiedCost modCost = net.addModifiedCost(idArc, -1.0, 3);

                                GraphicLayer graphicLayer = mapCtrl.getMapContext()

                                                .getGraphicsLayer();

                                if (idSymbolBarrier == -1) {

                                        FSymbol simFlag = new FSymbol(FConstant.SYMBOL_TYPE_ICON);

                                        simFlag.setStyle(FConstant.SYMBOL_STYLE_MARKER_IMAGEN);

                                        simFlag.setSizeInPixels(true);

                                        simFlag.setSize(16);

                                        ImageIcon icon = new ImageIcon(this.getClass()

                                                        .getClassLoader().getResource("images/barrier.png"));

                                        simFlag.setIcon(icon.getImage());

                                        idSymbolBarrier = graphicLayer.addSymbol(simFlag);

                                }

                                IGeometry gAux = ShapeFactory.createPoint2D(nearestPoint.getX(),

                                                nearestPoint.getY());

                                FGraphic graphic = new FGraphic(gAux, idSymbolBarrier);

                                graphic.setTag("BARRIER");

                                graphic.setObjectTag(modCost);

                                graphicLayer.addGraphic(graphic);

                                mapCtrl.drawGraphics();

                                PluginServices.getMainFrame().enableControls();

                        }

                }

        }

        public Cursor getCursor() {

                return cur;

        }

        public boolean cancelDrawing() {

                return false;

        }

        public void pointDoubleClick(PointEvent event) throws BehaviorException {

        }

}