| 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.app.project.documents.view.toolListeners;

import java.awt.Component;

import java.awt.Image;

import java.awt.geom.Point2D;

import java.net.URI;

import javax.swing.JOptionPane;

import org.gvsig.andami.PluginServices;

import org.gvsig.app.gui.panels.LinkPanel;

import org.gvsig.app.project.documents.view.gui.View;

import org.gvsig.fmap.dal.exception.ReadException;

import org.gvsig.fmap.mapcontext.layers.FLayer;

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

import org.gvsig.fmap.mapcontrol.MapControl;

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

import org.gvsig.fmap.mapcontrol.tools.Events.PointEvent;

import org.gvsig.fmap.mapcontrol.tools.Listeners.PointListener;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * <p>Listener that gets, if exists, the associated link at the feature that's at the position selection of an active, selected

 *  and vector layer of the associated <code>MapControl</code>; and displays

 *  that linked data (image, text, ...) on a dialog.</p>

 *

 * <p>Listens a single click of any mouse's button.</p>

 *

 * @author Vicente Caballero Navarro

 */

public class LinkListener implements PointListener {

        /**

         * Object used to log messages for this listener.

         */

        private static final Logger logger = LoggerFactory

            .getLogger(InfoListener.class);

        /**

         * The image to display when the cursor is active.

         */

        private final Image img = PluginServices.getIconTheme()

                .get("cursor-hiperlink").getImage();

        /**

         * The cursor used to work with this tool listener.

         *

         * @see #getCursor()

         */

//        private Cursor cur = Toolkit.getDefaultToolkit().createCustomCursor(img,

//                        new Point(16, 16), "");

        /**

         * Reference to the <code>MapControl</code> object that uses.

         */

        private MapControl mapCtrl;

        /**

         * Identifies the link as an image.

         */

        public static final int TYPELINKIMAGE=0;

        /**

         * Identifies the link as text.

         */

        public static final int TYPELINKTEXT=1;

        /**

         * <p>Creates a new <code>LinkListener</code> object.</p>

         *

         * @param mc the <code>MapControl</code> where will be applied the changes

         */

        public LinkListener(MapControl mc) {

                this.mapCtrl = mc;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.tools.Listeners.PointListener#point(com.iver.cit.gvsig.fmap.tools.Events.PointEvent)

         */

        public void point(PointEvent event) throws BehaviorException {

                Point2D pReal = mapCtrl.getMapContext().getViewPort().toMapPoint(event.getPoint());

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

                FLayer[] sel = mapCtrl.getMapContext().getLayers().getActives();

                URI[] uri=null;

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

                        FLayer laCapa = sel[i];

            if (laCapa.allowLinks())

            {

                    FLyrVect lyrVect = (FLyrVect) laCapa;

                    double tol = mapCtrl.getViewPort().toMapDistance(3);

                    try {

                                        uri=lyrVect.getLink(pReal,tol);

                                } catch (ReadException e) {

                                        JOptionPane.showMessageDialog((Component)PluginServices.getMainFrame(),"Error" +

                                    " Error accediendo a la fuente de datos.");

                    return;

                                }

                    if (uri == null){

                            JOptionPane.showMessageDialog((Component)PluginServices.getMainFrame(),"Error" +

                                            " no has seleccionado una geometr�a para realizar HyperLink.");

                            return;

                    }

                    for(int j=0; j<uri.length;j++){

                            if(uri[j]!=null){

                                    LinkPanel lpanel = new LinkPanel (uri[j], lyrVect.getLinkProperties().getType());

                                    PluginServices.getMDIManager().addWindow(lpanel);

                            }

                    }

            }

                }

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener#getImageCursor()

         */

        public Image getImageCursor() {

                return img;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.tools.Listeners.ToolListener#cancelDrawing()

         */

        public boolean cancelDrawing() {

                return false;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.tools.Listeners.PointListener#pointDoubleClick(com.iver.cit.gvsig.fmap.tools.Events.PointEvent)

         */

        public void pointDoubleClick(PointEvent event) throws BehaviorException {

        }

}