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.overview;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import javax.swing.Icon;

import org.gvsig.andami.IconThemeHelper;

import org.gvsig.andami.PluginServices;

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

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

import org.gvsig.fmap.dal.coverage.RasterLocator;

import org.gvsig.fmap.dal.coverage.exception.BandAccessException;

import org.gvsig.fmap.dal.coverage.exception.RasterDriverException;

import org.gvsig.fmap.mapcontext.exceptions.ReloadLayerException;

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

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

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.swing.RasterSwingLibrary;

import org.gvsig.raster.tools.app.basic.raster.process.IProcessActions;

import org.gvsig.raster.tools.app.basic.raster.process.OverviewsProcess;

import org.gvsig.raster.tools.app.basic.raster.process.RasterProcess;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * Herramienta del men? contextual para la generaci?n de overviews.

 * 

 * 10-dic-2007

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

 */

public class OverviewsTocMenuEntry extends AbstractTocContextMenuAction implements PropertyChangeListener, IGenericToolBarMenuItem, IProcessActions {

        private Logger                       log              = LoggerFactory.getLogger(OverviewsTocMenuEntry.class);

        static private OverviewsTocMenuEntry singleton        = null;

        /**

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

         * getSingleton()

         */

        private OverviewsTocMenuEntry() {}

        /**

         * Devuelve un objeto unico a dicha clase

         * @return

         */

        static public OverviewsTocMenuEntry getSingleton() {

                if (singleton == null)

                        singleton = new OverviewsTocMenuEntry();

                return singleton;

        }

        public String getGroup() {

                return "RasterLayer";

        }

        public int getGroupOrder() {

                return 10;

        }

        public int getOrder() {

                return 70;

        }

        public String getText() {

                return PluginServices.getText(this, "generar_overviews");

        }

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

                if(!RasterLocator.getManager().isOverviewBuilderSupported())

                        return false;

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

                        return false;

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

                        return false;

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

                        return false;

                if (!((FLyrRaster) selectedItems[0]).getDataStore().overviewsSupport())

                        return false;

                if (!((FLyrRaster) selectedItems[0]).getDataStore().overviewsSupport())

                        return false;

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

        }

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

                if(!RasterLocator.getManager().isOverviewBuilderSupported())

                        return false;

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

                        return false;

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

                        return false;

                return true;

        }

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

                FLayer lyr = selectedItems[0];

                if (lyr instanceof FLyrRaster) {

                        if (RasterSwingLibrary.messageBoxYesOrNot("sobreescribir_datos_overview", this)) {

                                try {

                                        if (((FLyrRaster) lyr).getDataStore().getOverviewCount(0) > 0) {

                                                if (!RasterSwingLibrary.messageBoxYesOrNot("sobreescribir_overviews", this))

                                                        return;

                                        }

                                } catch (BandAccessException e) {

                                        // Actuamos como si no tubiera overviews pero salvamos un Log

                                        log.debug("Error accediendo a la banda en getOverViewCount", this, e);

                                } catch (RasterDriverException e) {

                                        // Actuamos como si no tubiera overviews pero salvamos un Log

                                        log.debug("Error en getOverViewCount", this, e);

                                }

                                RasterProcess process = new OverviewsProcess();

                                process.addParam("layer", (FLyrRaster) lyr);

                                process.setCancelable(false);

                                process.setActions(this);

                                process.start();

                        }

                }

        }

        public Icon getIcon() {

                return IconThemeHelper.getImageIcon("layer-modify-overviews");

        }

        public void end(Object param) {

                try {

                        ((FLyrDefault) param).reload();

                } catch (ReloadLayerException e) {

                }

        }

        public void propertyChange(PropertyChangeEvent evt) {}

        public void interrupted() {}

        public boolean isEnableEvents() {

                return true;

        }

}