Application: gvSIG desktop » gvSIG raster

/* 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.raster.tools.app.basic.tool.histogram;

import javax.swing.Icon;

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

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

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

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.tools.app.basic.RasterToolsUtil;

import org.gvsig.raster.tools.app.basic.raster.gui.IGenericToolBarMenuItem;

import org.gvsig.raster.tools.app.basic.tool.histogram.ui.HistogramDialog;

/**

 * Punto de entrada del menu del histograma.

 *

 * @version 17/04/2007

 * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class HistogramTocMenuEntry extends AbstractTocContextMenuAction implements IGenericToolBarMenuItem {

        static private HistogramTocMenuEntry singleton  = null;

        /**

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

         * getSingleton()

         */

        private HistogramTocMenuEntry() {}

        /**

         * Devuelve un objeto unico a dicha clase

         * @return

         */

        static public HistogramTocMenuEntry getSingleton() {

                if (singleton == null)

                        singleton = new HistogramTocMenuEntry();

                return singleton;

        }

        /*

         * (non-Javadoc)

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

         */

        public String getGroup() {

                return "RasterLayer";

        }

        /*

         * (non-Javadoc)

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

         */

        public int getGroupOrder() {

                return 10;

        }

        /*

         * (non-Javadoc)

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

         */

        public int getOrder() {

                return 30;

        }

        /*

         * (non-Javadoc)

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

         */

        public String getText() {

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

        }

        /*

         * (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) {

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

                        return false;

                if (selectedItems[0] instanceof ILayerState) {

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

                                return false;

                        return true;

                }

                return false;

        }

        /*

         * (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 FLyrRaster))

                        return false;

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

        }

        /*

         * (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) {

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

                        return;

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

                        return;

                FLyrRaster fLayer = (FLyrRaster) selectedItems[0];

                try {

                        HistogramDialog histogramDialog = null;

                        histogramDialog = new HistogramDialog(650, 500);

                        histogramDialog.setLayer(fLayer);

                        histogramDialog.getHistogramPanel().firstRun(); // Mostar por primera vez el histograma

                        histogramDialog.setVisible(true);

                        RasterToolsUtil.addWindow(histogramDialog);

                } catch (Exception e) {

                        RasterToolsUtil.messageBoxError(RasterToolsUtil.getText(this, "histogram_error"), this, e);

                        return;

                }

        }

        /*

         * (non-Javadoc)

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

         */

        public Icon getIcon() {

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

        }

}