| 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 javax.swing.JOptionPane;

import org.gvsig.graph.core.GraphException;

import org.gvsig.graph.core.GvFlag;

import org.gvsig.graph.core.Network;

import org.gvsig.graph.core.NetworkUtils;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

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

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

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

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 FlagListener implements PointListener {

        public static final int TO_ARC = 0;

        public static final int TO_NODE = 1;

        public static int pixelTolerance = 10;

    private MapControl mapCtrl;

    private int idSymbolFlag = -1;

    private Cursor cur = java.awt.Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);

        private int mode;

    public FlagListener(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)

                        {

                                double realTol = mapCtrl.getViewPort().toMapDistance(pixelTolerance);

                                GvFlag flag;

                                try {

                                        if (mode == TO_ARC)

                                                flag = net.addFlag(pReal.getX(), pReal.getY(), realTol);

                                        else

                                                flag = net.addFlagToNode(pReal.getX(), pReal.getY(), realTol);

                                        if (flag == null)

                                        {

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

                                                return;

                                        }

                                        NetworkUtils.addGraphicFlag(mapCtrl, flag);

                                        mapCtrl.drawGraphics();

                                        PluginServices.getMainFrame().enableControls();

                                } catch (GraphException e) {

                                        e.printStackTrace();

                                        NotificationManager.addError(e);

                                }

                        }

                }

    }

    public Cursor getCursor() {

        return cur;

    }

    public boolean cancelDrawing() {

        return false;

    }

        public void pointDoubleClick(PointEvent event) throws BehaviorException {

        }

        public void setMode(int mode) {

                this.mode = mode;

        }

}