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.fmap.mapcontrol.swing.dynobject.impl;

import java.awt.BorderLayout;

import java.util.Map;

import javax.swing.JComponent;

import javax.swing.JList;

import javax.swing.JPanel;

import javax.swing.ListSelectionModel;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import org.gvsig.fmap.mapcontrol.swing.dynobject.LayersDynObjectSetComponent;

import org.gvsig.tools.dynobject.DynObjectSet;

import org.gvsig.tools.exception.BaseException;

import org.gvsig.tools.swing.api.ToolsSwingLocator;

import org.gvsig.tools.swing.api.dynobject.set.JDynObjectSetComponent;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * @author gvSIG Team

 * @version $Id$

 * 

 */

public class DefaultLayersDynObjectSetComponent extends JPanel implements

    LayersDynObjectSetComponent, ListSelectionListener {

    private static final long serialVersionUID = 5864674721657215264L;

    private static final Logger LOG = LoggerFactory

        .getLogger(DefaultLayersDynObjectSetComponent.class);

    private final LayersDynObjectSetComponentModel model;

    private JDynObjectSetComponent component;

    private JList layersList;

    private final boolean writable;

    /**

     * Creates a new {@link DefaultLayersDynObjectSetComponent} with the given

     * information for a list of layers.

     */

    public DefaultLayersDynObjectSetComponent(

        Map<String, DynObjectSet> layerName2InfoByPoint) {

        this(layerName2InfoByPoint, true);

    }

    /**

     * @param isDoubleBuffered

     */

    public DefaultLayersDynObjectSetComponent(

        Map<String, DynObjectSet> layerName2InfoByPoint,

 boolean writable) {

        super(new BorderLayout());

        this.writable = writable;

        model = new LayersDynObjectSetComponentModel(layerName2InfoByPoint);

        initializeUI();

    }

    private void initializeUI() {

        addLayerList();

    }

    private void addLayerList() {

        layersList = new JList(model);

        layersList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        layersList.setLayoutOrientation(JList.VERTICAL);

        // list.setVisibleRowCount(20);

        layersList.addListSelectionListener(this);

        add(layersList, BorderLayout.WEST);

        layersList.setSelectedIndex(0);

    }

    public void valueChanged(ListSelectionEvent e) {

        if (!e.getValueIsAdjusting()) {

            String layerName = (String) layersList.getSelectedValue();

            setCurrentLayerInfoByPoint(layerName);

        }

    }

    private void setCurrentLayerInfoByPoint(String layerName) {

        JDynObjectSetComponent newComponent = null;

        DynObjectSet dynObjectSet = model.getLayerInfoByPoint(layerName);

        try {

            newComponent =

                ToolsSwingLocator.getDynObjectSwingManager()

                    .createJDynObjectSetComponent(dynObjectSet, writable);

        } catch (BaseException e) {

            LOG.error("Error creating the JDynObjectSetComponent for "

                + "the DynObjectSet: " + dynObjectSet, e);

        }

        if (newComponent != null) {

            removeCurrentDynObjectSetComponent();

            component = newComponent;

            add(component.asJComponent(), BorderLayout.CENTER);

            revalidate();

            repaint();

        }

    }

    public JComponent asJComponent() {

        return this;

    }

    public void dispose() {

        removeCurrentDynObjectSetComponent();

        model.dispose();

    }

    private void removeCurrentDynObjectSetComponent() {

        if (component != null) {

            remove(component.asJComponent());

            component.dispose();

        }

    }

}