Application: gvSIG desktop

package org.gvsig.app.project.documents.view.toc.actions;

import java.awt.Component;

import javax.swing.JOptionPane;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.andami.PluginServices;

import org.gvsig.app.ApplicationLocator;

import org.gvsig.app.extension.ProjectExtension;

import org.gvsig.app.project.Project;

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.fmap.mapcontext.layers.FLayers;

import org.gvsig.i18n.Messages;

import org.gvsig.tools.persistence.exception.PersistenceException;

public class PasteLayersTocMenuEntry extends AbstractTocContextMenuAction {

    private static Logger logger =

        LoggerFactory.getLogger(PasteLayersTocMenuEntry.class);

        public String getGroup() {

                return "copyPasteLayer";

        }

        public int getGroupOrder() {

                return 60;

        }

        public int getOrder() {

                return 2;

        }

        public String getText() {

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

        }

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

                if (isTocItemBranch(item)) {

                        FLayer lyr = getNodeLayer(item);

                        if (lyr instanceof FLayers) {

                            FLayers aux = this.getFLayersFromClipboard();

                                return aux != null;

                        }

                } else if (!isTocItemLeaf(item)) {

                        if (getNodeLayer(item) == null) {

                FLayers aux = this.getFLayersFromClipboard();

                return aux != null;

                        }

                }

                return false;

        }

        /**

         * This method can return null (if content of clipboard not useful)

         * 

         * @return

         */

        private FLayers getFLayersFromClipboard() {

                FLayers resp = null;

        try {

            resp = CopyPasteLayersUtils.getClipboardAsFLayers();

            // resp can be null here if clipboard content not useful

        } catch (PersistenceException e) {

            ApplicationLocator.getManager().message(

                Messages.getText("_Clipboard_error"),

                JOptionPane.ERROR_MESSAGE);

            resp = null;

        }

                return resp;

        }

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

                FLayers target_root;

        FLayers clipboard_root = this.getFLayersFromClipboard();

        if (clipboard_root == null) {

            JOptionPane.showMessageDialog(

                (Component)PluginServices.getMainFrame(),

                Messages.getText("No_ha_sido_posible_realizar_la_operacion"),

                Messages.getText("pegar"),

                JOptionPane.ERROR_MESSAGE

                );

            logger.info("Unable to parse clipboard as flayers");

            return;

        }

                if (isTocItemBranch(item)) {

                    target_root = (FLayers)getNodeLayer(item);

                } else if (getNodeLayer(item) == null){

                    target_root = getMapContext().getLayers();

                } else {

                        return;

                }

                getMapContext().beginAtomicEvent();

                boolean isOK = CopyPasteLayersUtils.addLayers(clipboard_root, target_root);

                getMapContext().endAtomicEvent();

                if (isOK) {

                        getMapContext().invalidate();

                        Project project=((ProjectExtension)PluginServices.getExtension(ProjectExtension.class)).getProject();

                        project.setModified(true);

                }

        }

}