Application: gvSIG desktop » gvSIG raster

/* 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.

* 

*/

package org.gvsig.raster.tools.app.basic.tool.geolocation;

import java.awt.Point;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import javax.swing.Icon;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.ui.mdiManager.IWindow;

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

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

import org.gvsig.app.project.documents.view.toc.AbstractTocContextMenuAction;

import org.gvsig.app.project.documents.view.toc.ITocItem;

import org.gvsig.app.project.documents.view.toolListeners.StatusBarListener;

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

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

import org.gvsig.fmap.mapcontrol.MapControl;

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

import org.gvsig.fmap.mapcontrol.tools.Behavior.MouseMovementBehavior;

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

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

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

import org.gvsig.raster.mainplugin.toolbar.IGenericToolBarMenuItem;

import org.gvsig.raster.tools.app.basic.RasterToolsUtil;

import org.gvsig.raster.tools.app.basic.tool.geolocation.behavior.GeoRasterBehavior;

import org.gvsig.raster.tools.app.basic.tool.geolocation.listener.GeorefPanListener;

import org.gvsig.raster.tools.app.basic.tool.geolocation.ui.GeoLocationDialog;

/**

 * 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;

        }

        public String getGroup() {

                return "GeoRaster";

        }

        public int getGroupOrder() {

                return 10;

        }

        public int getOrder() {

                return 20;

        }

        public String getText() {

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

        }

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

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

                        return false;

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

                        return false;

                if (!((ILayerState) selectedItems[0]).isOpen())

                        return false;

                return true;

        }

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

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

                        return false;

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

                        return false;

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

        }

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

                boolean isOpen = false;

                AbstractViewPanel theView = (AbstractViewPanel) 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 FLyrRaster))

                        return;

                FLyrRaster lyr = (FLyrRaster)selectedItems[0];

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

                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, FLyrRaster lyr) {

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

                        GeorefPanListener pl = new GeorefPanListener(mapCtrl);

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

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

                }

                if(mb != null) {

                        mb.setLayer(lyr);

                        mb.setITransformIO(gld);

                }

        }

        public Icon getIcon() {

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

        }

        public void propertyChange(PropertyChangeEvent evt) {}

        public boolean isEnableEvents() {

                return true;

        }

}