| gvSIG desktop 1

/* 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.app.extension;

import org.gvsig.andami.IconThemeHelper;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.andami.plugins.Extension;

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

import org.gvsig.app.project.documents.table.gui.FeatureTableDocumentPanel;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.feature.FeatureStore;

public class TableRowsOperations extends Extension {

    public void initialize() {

        registerIcons();

    }

    private void registerIcons() {

            IconThemeHelper.registerIcon("action", "selection-move-up", this);

            IconThemeHelper.registerIcon("action", "selection-reverse", this);    

    }

    public void execute(String actionCommand) {

        FeatureTableDocumentPanel tableDocument = getTableDocument();

        if (actionCommand.equalsIgnoreCase("selection-move-up") ) {

            showsSelectedRows(tableDocument);

        }

        if (actionCommand.equalsIgnoreCase("selection-reverse") ) {

            invertSelection(tableDocument);

        }

        tableDocument.getModel().setModified(true);

    }

    /**

     * Flip the selection (inverts selection)

     * 

     * @param table

     */

    private void invertSelection(FeatureTableDocumentPanel table) {

        try {

            FeatureStore fs = getTableDocument().getModel().getStore();

            fs.getFeatureSelection().reverse();

        } catch (DataException e) {

            e.printStackTrace();

            NotificationManager.addError(e);

        }

    }

    private void showsSelectedRows(FeatureTableDocumentPanel table) {

        table.setSelectionUp(true);

    }

    public boolean isEnabled() {

        FeatureTableDocumentPanel tableDocument = getTableDocument();

        if (tableDocument != null) {

            try {

                return !tableDocument.getModel().getStore()

                    .getFeatureSelection().isEmpty();

            } catch (DataException e) {

                NotificationManager.addError(e);

            }

        }

        return false;

    }

    public boolean isVisible() {

        return getTableDocument() != null;

    }

    private FeatureTableDocumentPanel getTableDocument() {

        IWindow v = PluginServices.getMDIManager().getActiveWindow();

        if (v != null && v instanceof FeatureTableDocumentPanel) {

            return (FeatureTableDocumentPanel) v;

        }

        return null;

    }

}