| gvSIG desktop 1

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

 *

 * Copyright (C) 2007 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.

 */

package org.gvsig.rastertools.geolocation;

import java.awt.Point;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import javax.swing.Icon;

import org.gvsig.fmap.raster.layers.FLyrRasterSE;

import org.gvsig.fmap.raster.layers.IRasterLayerActions;

import org.gvsig.raster.gui.IGenericToolBarMenuItem;

import org.gvsig.raster.util.RasterToolsUtil;

import org.gvsig.rastertools.geolocation.behavior.GeoRasterBehavior;

import org.gvsig.rastertools.geolocation.listener.GeorefPanListener;

import org.gvsig.rastertools.geolocation.ui.GeoLocationDialog;

import com.iver.andami.PluginServices;

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

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

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

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

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

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

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

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

import com.iver.cit.gvsig.project.documents.view.toc.AbstractTocContextMenuAction;

import com.iver.cit.gvsig.project.documents.view.toc.ITocItem;

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

/**

 * Herramienta del men? contextual que carga el raster en el localizador para tener una visi?n general de

 * esta y carga el zoom del cursor para tener una selecci?n de precisi?n.

 *

 * 16-jun-2007

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class GeoLocationTocMenuEntry extends AbstractTocContextMenuAction implements PropertyChangeListener, IGenericToolBarMenuItem {

        static private GeoLocationTocMenuEntry singleton  = null;

        private GeoRasterBehavior mb = null;

        /**

         * Nadie puede crear una instancia a esta clase ?nica, hay que usar el

         * getSingleton()

         */

        private GeoLocationTocMenuEntry() {}

        /**

         * Devuelve un objeto unico a dicha clase

         * @return

         */

        static public GeoLocationTocMenuEntry getSingleton() {

                if (singleton == null)

                        singleton = new GeoLocationTocMenuEntry();

                return singleton;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.project.documents.contextMenu.AbstractContextMenuAction#getGroup()

         */

        public String getGroup() {

                return "GeoRaster";

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.project.documents.contextMenu.AbstractContextMenuAction#getGroupOrder()

         */

        public int getGroupOrder() {

                return 55;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.project.documents.contextMenu.AbstractContextMenuAction#getOrder()

         */

        public int getOrder() {

                return 4;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.project.documents.IContextMenuAction#getText()

         */

        public String getText() {

                return RasterToolsUtil.getText(this, "geolocation");

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.project.documents.view.toc.AbstractTocContextMenuAction#isEnabled(com.iver.cit.gvsig.project.documents.view.toc.ITocItem, com.iver.cit.gvsig.fmap.layers.FLayer[])

         */

        public boolean isEnabled(ITocItem item, FLayer[] selectedItems) {

                return true;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.project.documents.view.toc.AbstractTocContextMenuAction#isVisible(com.iver.cit.gvsig.project.documents.view.toc.ITocItem, com.iver.cit.gvsig.fmap.layers.FLayer[])

         */

        public boolean isVisible(ITocItem item, FLayer[] selectedItems) {

                if ((selectedItems == null) || (selectedItems.length != 1))

                        return false;

                if (!(selectedItems[0] instanceof FLyrRasterSE))

                        return false;

                return ((FLyrRasterSE) selectedItems[0]).isActionEnabled(IRasterLayerActions.GEOLOCATION);

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.project.documents.view.toc.AbstractTocContextMenuAction#execute(com.iver.cit.gvsig.project.documents.view.toc.ITocItem, com.iver.cit.gvsig.fmap.layers.FLayer[])

         */

        public void execute(ITocItem item, FLayer[] selectedItems) {                

                boolean isOpen = false;

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

                MapControl mapCtrl = theView.getMapControl();

                // Listener de eventos de movimiento que pone las coordenadas del rat?n en

                // la barra de estado

                StatusBarListener sbl = new StatusBarListener(mapCtrl);

                //Comprobamos si no hay capas activas. En este caso no lanzamos la ventana ni activamos la tool

                IWindow[] win = PluginServices.getMDIManager().getAllWindows();

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

                        if (win[i] instanceof IView) {

                                FLayers lyrs = ((IView) win[i]).getMapControl().getMapContext().getLayers();

                                FLayer[] actives = lyrs.getActives();

                                if (actives == null || actives.length == 0)

                                        return;

                        }

                        if (win[i] instanceof GeoLocationDialog)

                                isOpen = true;

                }

                if (selectedItems == null || selectedItems.length != 1 || !(selectedItems[0] instanceof FLyrRasterSE))

                        return;

                FLyrRasterSE lyr = (FLyrRasterSE)selectedItems[0];

                GeoLocationDialog gld = new GeoLocationDialog(lyr, mapCtrl.getViewPort());

                if(!isOpen) {

                        Point posit = RasterToolsUtil.iwindowPosition((int)gld.getSizeWindow().getWidth(), (int)gld.getSizeWindow().getHeight());

                        gld.setPosition((int)posit.getX(), (int)posit.getY());

                        RasterToolsUtil.addWindow(gld);

                }

                gld.init(mapCtrl);

                loadGeoPanListener(mapCtrl, sbl, gld, lyr);

                mapCtrl.setTool("geoPan");

        }

        /**

         * Carga el listener de selecci?n de raster en el MapControl.

         */

        private void loadGeoPanListener(MapControl mapCtrl, StatusBarListener sbl, GeoLocationDialog gld, FLyrRasterSE lyr) {

                if (mapCtrl.getNamesMapTools().get("geoPan") == null) {

                        GeorefPanListener pl = new GeorefPanListener(mapCtrl);

                        mb = new GeoRasterBehavior(pl, gld, lyr);

                        mapCtrl.addMapTool("geoPan", new Behavior[]{mb, new MouseMovementBehavior(sbl)});

                }

                if(mb != null) {

                        mb.setLayer(lyr);

                        mb.setITransformIO(gld);

                }

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.rastertools.generictoolbar.IGenericToolBarMenuItem#getIcon()

         */

        public Icon getIcon() {

                return RasterToolsUtil.getIcon("geolocalization-icon");

        }

        public void propertyChange(PropertyChangeEvent evt) {}

}