Application: gvSIG desktop

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Gobernment (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.

 *

 */

/*

 * AUTHORS (In addition to CIT):

 * 2008 {DiSiD Technologies}  {Create a Table component for Features}

 */

package org.gvsig.fmap.data.feature.swing;

import java.awt.Color;

import javax.swing.JTable;

import javax.swing.table.TableColumnModel;

import javax.swing.table.TableModel;

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

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

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

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

import org.gvsig.fmap.data.feature.swing.table.*;

import org.gvsig.fmap.data.feature.swing.table.notification.ColumnHeaderSelectionChangeNotification;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.tools.observer.Observable;

import org.gvsig.tools.observer.Observer;

/**

 * Table extension to show Feature values.

 * 

 * It's based on the usage of a FeatureTableModel, and adds renderers for

 * Geometry and Feature cell values.

 * 

 * Observers are notified about column header selection changes, with a

 * {@link ColumnHeaderSelectionChangeNotification}.

 * 

 * @author <a href="mailto:cordin@disid.com">C?sar Ordi?ana</a>

 */

public class FeatureTable extends JTable implements Observer, Observable {

    /**

     * Generated Serial UID

     */

    private static final long serialVersionUID = -6139395189283163964L;

    private final FeatureTableModel featureTableModel;

    private JToggleButtonHeaderCellRenderer headerCellRenderer;

    /**

     * @throws DataException

     * @see JTable#JTable(TableModel)

     */

    public FeatureTable(FeatureTableModel featureTableModel)

            throws DataException {

        super(featureTableModel);

        this.featureTableModel = featureTableModel;

        init();

    }

    /**

     * @throws DataException

     * @see JTable#JTable(TableModel, TableColumnModel)

     */

    public FeatureTable(FeatureTableModel featureTableModel, TableColumnModel cm)

            throws DataException {

        super(featureTableModel, cm);

        this.featureTableModel = featureTableModel;

        init();

    }

    public void update(Observable observable, Object notification) {

        if (notification instanceof FeatureStoreNotification) {

            FeatureStoreNotification fsNotification = (FeatureStoreNotification) notification;

            String type = fsNotification.getType();

            // If the selection has changed, repaint the table to show the new

            // selected rows

            if (FeatureStoreNotification.SELECTION_CHANGE.equals(type)) {

                repaint();

            }

        }

    }

    /**

     * Returns the FeatureAttributeDescriptor related to the selected columns.

     * 

     * @return an array of FeatureAttributeDescriptor

     * 

     * @see org.gvsig.fmap.data.feature.swing.table.JToggleButtonHeaderCellRenderer#getSelectedColumns()

     */

    public FeatureAttributeDescriptor[] getSelectedColumnsAttributeDescriptor() {

        int[] columns = headerCellRenderer.getSelectedColumns();

        FeatureAttributeDescriptor[] descriptors = new FeatureAttributeDescriptor[columns.length];

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

            descriptors[i] = featureTableModel

                    .getDescriptorForColumn(columns[i]);

        }

        return descriptors;

    }

    @Override

    protected void initializeLocalVars() {

        super.initializeLocalVars();

        // Add a cell renderer for Geometries and Features

        setDefaultRenderer(Geometry.class, new GeometryCellRenderer());

        setDefaultRenderer(Feature.class, new FeatureCellRenderer());

        // Set the selected row colors

        setSelectionForeground(Color.blue);

        setSelectionBackground(Color.yellow);

    }

    private void init() throws DataException {

        featureTableModel.getFeatureStore().addObserver(this);

        // Change the selection model to link with the FeatureStore selection

        // through the FeatureTableModel

        setRowSelectionAllowed(true);

        setColumnSelectionAllowed(false);

        setSelectionModel(new FeatureSelectionModel(featureTableModel));

        headerCellRenderer = new JToggleButtonHeaderCellRenderer(this);

        getTableHeader().setDefaultRenderer(headerCellRenderer);

    }

    public void addObserver(Observer observer) {

        headerCellRenderer.addObserver(observer);

    }

    public void deleteObserver(Observer observer) {

        headerCellRenderer.deleteObserver(observer);

    }

    public void deleteObservers() {

        headerCellRenderer.deleteObservers();

    }

}