Application: gvSIG desktop » gvSIG raster

package org.gvsig.raster.principalcomponents.app;

import javax.swing.Icon;

import org.gvsig.andami.IconThemeHelper;

import org.gvsig.andami.plugins.Extension;

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.i18n.Messages;

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;

public class PrincipalComponentsTocMenuEntry extends AbstractTocContextMenuAction implements IGenericToolBarMenuItem {

        static private PrincipalComponentsTocMenuEntry singleton  = null;

        private static Extension                     extension  = null;

        public static void setExtension(Extension ext) {

                extension = ext;

        }

        private PrincipalComponentsTocMenuEntry() {}

        static public PrincipalComponentsTocMenuEntry getSingleton() {

                if (singleton == null)

                        singleton = new PrincipalComponentsTocMenuEntry();

                return singleton;

        }

        public String getGroup() {

                return "Multispectral";

        }

        public int getGroupOrder() {

                return 55;

        }

        public int getOrder() {

                return 0;

        }

        public String getText() {

                return Messages.getText("principalcomponents");

        }

        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;

                if(((FLyrRaster) selectedItems[0]).getRender().getFilterList().get("colortable") != null)

                        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.ENHANCED);

        }

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

                extension.execute("PrincipalComponents");

        }

        public Icon getIcon() {

                return IconThemeHelper.getImageIcon("principal-components");

        }

}