Application: gvSIG desktop

/* 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.plugins.Extension;

import org.gvsig.app.project.ProjectManager;

import org.gvsig.app.project.documents.table.TableDocument;

import org.gvsig.app.project.documents.table.TableManager;

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

import org.gvsig.app.project.documents.view.gui.AbstractViewPanel;

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

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

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

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

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

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

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

import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect;

/**

 * Extensi?n que abre las tablas asociadas a las vistas.

 * 

 * @author Vicente Caballero Navarro

 */

public class ShowTable extends Extension implements LayerCollectionListener {

    /**

     * @see org.gvsig.andami.plugins.IExtension#isEnabled()

     */

    public boolean isEnabled() {

        AbstractViewPanel f =

            (AbstractViewPanel) PluginServices.getMDIManager()

                .getActiveWindow();

        if (f == null) {

            return false;

        }

        FLayer[] selected =

            f.getViewDocument().getMapContext().getLayers().getActives();

        boolean algunaTabla = false;

        for (int i = 0; i < selected.length; i++) {

            if (selected[i].isAvailable() && selected[i] instanceof FLyrVect) {

                FLyrVect co = (FLyrVect) selected[i];

                try {

                    if (co.getFeatureStore() != null) {

                        algunaTabla = true;

                    }

                    // } catch (ReadException e) {

                    // return false;

                } catch (NullPointerException e) {

                    return false;

                }

            }

        }

        return algunaTabla;

    }

    /**

     * @see org.gvsig.andami.plugins.IExtension#isVisible()

     */

    public boolean isVisible() {

        org.gvsig.andami.ui.mdiManager.IWindow f =

            PluginServices.getMDIManager().getActiveWindow();

        if (f == null) {

            return false;

        }

        return (f instanceof AbstractViewPanel);

    }

    /**

     * @see com.iver.mdiApp.plugins.IExtension#updateUI(java.lang.String)

     */

    public void execute(String s) {

                if ("layer-show-attributes-table".equalsIgnoreCase(s)) {

                        AbstractViewPanel vista = (AbstractViewPanel) PluginServices

                                        .getMDIManager().getActiveWindow();

                        FLayer[] actives = vista.getViewDocument().getMapContext()

                                        .getLayers().getActives();

                        for (int i = 0; i < actives.length; i++) {

                                if (actives[i] instanceof FLyrVect) {

                                        FLyrVect co = (FLyrVect) actives[i];

                                        ProjectManager projectManager = getProjectManager();

                                        TableManager tableManager = getTableManager();

                                        TableDocument projectTable = tableManager

                                                        .getTableDocument(co);

                                        FeatureStore fs = ((FLyrVect) actives[i]).getFeatureStore();

                                        if (projectTable == null) {

                                                projectTable = (TableDocument) projectManager

                                                                .createDocument(

                                                                                TableManager.TYPENAME,

                                                                                PluginServices.getText(this,

                                                                                                "Tabla_de_Atributos")

                                                                                                + ": "

                                                                                                + actives[i].getName());

                                                projectTable.setStore(fs);

                                                projectTable.setAssociatedLayer(co);

                                                co.getParentLayer().addLayerCollectionListener(this);

                                                projectManager.getCurrentProject().add(projectTable);

                                        }

                                        FeatureTableDocumentPanel featureTableDocumentPanel = (FeatureTableDocumentPanel) projectTable

                                                        .getFactory().getMainWindow(projectTable);

                                        featureTableDocumentPanel.getModel().setModified(true);

                                        PluginServices.getMDIManager().addWindow(

                                                        featureTableDocumentPanel);

                                }

                        }

                }

        }

    private ProjectManager getProjectManager() {

        return ProjectManager.getInstance();

    }

    private TableManager getTableManager() {

        TableManager tableManager =

            (TableManager) getProjectManager().getDocumentManager(

                TableManager.TYPENAME);

        return tableManager;

    }

    /**

     * @see org.gvsig.andami.plugins.IExtension#initialize()

     */

    public void initialize() {

            IconThemeHelper.registerIcon("action", "layer-show-attributes-table", this);

    }

    public void layerAdded(LayerCollectionEvent e) {

        // Nothing to do

    }

    public void layerMoved(LayerPositionEvent e) {

        // Nothing to do

    }

    public void layerRemoved(LayerCollectionEvent e) {

        FLayer layer = e.getAffectedLayer();

        // Just in case we where listening to a group of layers being removed

        // remove us from there

        if (layer instanceof FLayers) {

            ((FLayers) layer).removeLayerCollectionListener(this);

        }

        // Remove the related table document, if any

        if (layer instanceof FLyrVect) {

            getTableManager().removeTableDocument((FLyrVect) layer);

            // If the parent layers has not other child layers, for sure there

            // are not related tables opened, don't need to listen

            // LayerCollectionEvents anymore.

            // TODO: remove us also when there are not any child layers with

            // related table documents

            FLayers layers = layer.getParentLayer();

            if (layers != null && layers.getLayersCount() == 0) {

                layers.removeLayerCollectionListener(this);

            }

        }

    }

    public void layerAdding(LayerCollectionEvent e) throws CancelationException {

        // Nothing to do

    }

    public void layerMoving(LayerPositionEvent e) throws CancelationException {

        // Nothing to do

    }

    public void layerRemoving(LayerCollectionEvent e)

        throws CancelationException {

        // Nothing to do

    }

    public void visibilityChanged(LayerCollectionEvent e)

        throws CancelationException {

        // Nothing to do

    }

}