Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

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

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.Font;

import java.awt.FontMetrics;

import java.awt.Image;

import java.awt.Point;

import java.awt.Rectangle;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.ComponentEvent;

import java.awt.event.ComponentListener;

import java.awt.event.InputEvent;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.text.MessageFormat;

import java.util.ArrayList;

import java.util.Enumeration;

import java.util.HashMap;

import java.util.Map;

import javax.swing.BorderFactory;

import javax.swing.JColorChooser;

import javax.swing.JComponent;

import javax.swing.JDialog;

import javax.swing.JScrollPane;

import javax.swing.JTree;

import javax.swing.SwingUtilities;

import javax.swing.event.TreeExpansionEvent;

import javax.swing.event.TreeExpansionListener;

import javax.swing.tree.DefaultMutableTreeNode;

import javax.swing.tree.DefaultTreeModel;

import javax.swing.tree.TreePath;

import javax.swing.tree.TreeSelectionModel;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.PluginsLocator;

import org.gvsig.andami.actioninfo.ActionInfo;

import org.gvsig.andami.actioninfo.ActionInfoManager;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.app.gui.preferencespage.ViewPage;

import org.gvsig.app.project.documents.view.IContextMenuAction;

import org.gvsig.app.project.documents.view.toc.DnDJTree;

import org.gvsig.app.project.documents.view.toc.ITocItem;

import org.gvsig.app.project.documents.view.toc.ITocOrderListener;

import org.gvsig.app.project.documents.view.toc.TocItemBranch;

import org.gvsig.app.project.documents.view.toc.TocItemLeaf;

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

import org.gvsig.fmap.mapcontext.MapContext;

import org.gvsig.fmap.mapcontext.events.AtomicEvent;

import org.gvsig.fmap.mapcontext.events.listeners.AtomicEventListener;

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.operations.Classifiable;

import org.gvsig.fmap.mapcontext.layers.operations.IHasImageLegend;

import org.gvsig.fmap.mapcontext.layers.operations.LayerCollection;

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

import org.gvsig.fmap.mapcontext.rendering.legend.IClassifiedLegend;

import org.gvsig.fmap.mapcontext.rendering.legend.ILegend;

import org.gvsig.fmap.mapcontext.rendering.legend.ISingleSymbolLegend;

import org.gvsig.fmap.mapcontext.rendering.legend.IVectorLegend;

import org.gvsig.fmap.mapcontext.rendering.legend.events.LegendChangedEvent;

import org.gvsig.fmap.mapcontext.rendering.legend.events.LegendClearEvent;

import org.gvsig.fmap.mapcontext.rendering.legend.events.LegendContentsChangedListener;

import org.gvsig.fmap.mapcontext.rendering.legend.events.SymbolLegendEvent;

import org.gvsig.fmap.mapcontext.rendering.legend.events.listeners.LegendListener;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.utils.XMLEntity;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * 

 * @author fjp

 */

public class TOC extends JComponent implements ITocOrderListener,

    LegendListener, LayerCollectionListener, TreeExpansionListener,

    ComponentListener, LegendContentsChangedListener {

    /**

     * 

     */

    private static final long serialVersionUID = 5689047685537359038L;

    /**

     * Useful for debug the problems during the implementation.

     */

    private static Logger logger = LoggerFactory.getLogger(TOC.class);

    private MapContext mapContext;

    private DnDJTree m_Tree;

    private DefaultTreeModel m_TreeModel;

    private DefaultMutableTreeNode m_Root;

    private TOCRenderer m_TocRenderer;

    private JScrollPane m_Scroller;

    // private ArrayList m_Listeners;

    private Map<String, Boolean> m_ItemsExpanded =

        new HashMap<String, Boolean>();

    private NodeSelectionListener nodeSelectionListener = null;

    /**

     * Crea un nuevo TOC.

     */

    public TOC() {

        this.setName("TOC");

        this.setLayout(new BorderLayout());

        this.setMinimumSize(new Dimension(100, 80));

        this.setPreferredSize(new Dimension(100, 80));

        // Construct the tree.

        m_Root = new DefaultMutableTreeNode(java.lang.Object.class);

        m_TreeModel = new DefaultTreeModel(m_Root);

        m_Tree = new DnDJTree(m_TreeModel);

        m_TocRenderer = new TOCRenderer(m_Tree.getBackground());

        m_Tree.setCellRenderer(m_TocRenderer);

        m_Tree.setRootVisible(false);

        // m_Tree.setExpandsSelectedPaths(true);

        // m_Tree.setAutoscrolls(true);

        m_Tree.setShowsRootHandles(true);

        // Posibilidad de seleccionar de forma aleatoria nodos de la leyenda.

        m_Tree.getSelectionModel().setSelectionMode(

            TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);

        nodeSelectionListener = new NodeSelectionListener(m_Tree);

        m_Tree.addMouseListener(nodeSelectionListener);

        // m_Tree.setBackground(UIManager.getColor("Button.background"));

        // m_Tree.setBorder(BorderFactory.createEtchedBorder());

        this.addComponentListener(this);

        m_Tree.addTreeExpansionListener(this);

        m_Tree.addOrderListener(this);

        m_Tree.setRowHeight(0); // Para que lo determine el renderer

        m_Scroller = new JScrollPane(m_Tree);

        m_Scroller.setBorder(BorderFactory.createEmptyBorder());

        // scrollPane.setPreferredSize(new Dimension(80,80));

        // Add everything to this panel.

        /*

         * GridBagLayout gridbag = new GridBagLayout(); GridBagConstraints c =

         * new GridBagConstraints(); setLayout(gridbag); c.fill =

         * GridBagConstraints.BOTH; c.weightx = 1.0;

         * gridbag.setConstraints(check,c);

         */

        add(m_Scroller); // , BorderLayout.WEST);

        // refresh();

    }

    /**

     * Elimina los listeners que actuan sobre el TOC, lo ?nico que deja hacer es

     * desplegar la leyenda de las capas.

     */

    public void removeListeners() {

        m_Tree.removeMouseListener(nodeSelectionListener);

        m_Tree.invalidateListeners();

    }

    /**

     * Inserta el FMap.

     * 

     * @param mc

     *            FMap.

     */

    public void setMapContext(MapContext mc) {

        mapContext = mc;

        mapContext.addAtomicEventListener(new AtomicEventListener() {

            /**

             * @see org.gvsig.fmap.mapcontext.events.listeners.AtomicEventListener#atomicEvent(org.gvsig.fmap.mapcontext.events.AtomicEvent)

             */

            public void atomicEvent(final AtomicEvent e) {

                if (!SwingUtilities.isEventDispatchThread()) {

                    SwingUtilities.invokeLater(new Runnable() {

                        public void run() {

                            atomicEvent(e);

                        }

                    });

                    return;

                }

                if ((e.getLayerCollectionEvents().length > 0)

                    || (e.getLegendEvents().length > 0)) {

                    refresh();

                }

                if (e.getLayerEvents().length > 0) {

                    repaint();

                }

                if (e.getExtentEvents().length > 0) {

                    repaint();

                }

                LayerCollectionEvent[] events = e.getLayerCollectionEvents();

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

                   if( events[i].getEventType() == LayerCollectionEvent.LAYER_ADDED ) { 

                       if (PluginServices.getMainFrame() != null) {

                           PluginServices.getMainFrame().enableControls();

                       }

                   }

                   // ===================================================

                   // Change visibility of layer before adding, according to app preferences

                   if( events[i].getEventType() == LayerCollectionEvent.LAYER_ADDING ) {

                       if (invisibilityIsForced()) {

                           events[i].getAffectedLayer().setVisible(false);

                       }

                   }

                   // ===================================================

                }

            }

        });

        refresh();

    }

    /**

     * DOCUMENT ME!

     */

    private void setExpandedNodes(DefaultMutableTreeNode node) {

        // int i = 0;

        // Las claves sobrantes de m_ItemsExpanded (provocadas

        // por layerRemove, se quitan en el evento layerRemoved

        // de este TOC

        DefaultMutableTreeNode n;

        @SuppressWarnings("rawtypes")

        Enumeration enumeration = node.children();

        while (enumeration.hasMoreElements()) {

            n = (DefaultMutableTreeNode) enumeration.nextElement();

            if (n.getChildCount() > 0) {

                setExpandedNodes(n);

            }

            TreePath path = new TreePath(m_TreeModel.getPathToRoot(n));

            ITocItem item = (ITocItem) n.getUserObject();

            Boolean b = (Boolean) m_ItemsExpanded.get(item.getLabel());

            if (b == null) // No estaba en el hash todav?a: valor por defecto

            {

                m_Tree.expandPath(path);

                return;

            }

            if (b.booleanValue()) {

                m_Tree.expandPath(path);

            } else {

                m_Tree.collapsePath(path);

            }

        }

    }

    /*

     * (non-Javadoc)

     * 

     * @see com.iver.cit.opensig.gui.IToc#refresh()

     */

    public void refresh() {

        if (!SwingUtilities.isEventDispatchThread()) {

            SwingUtilities.invokeLater(new Runnable() {

                public void run() {

                    refresh();

                }

            });

            return;

        }

        LayerCollection theLayers = mapContext.getLayers();

        m_Root.removeAllChildren();

        m_Root.setAllowsChildren(true);

        doRefresh(theLayers, m_Root);

        m_TreeModel.reload();

        setExpandedNodes(m_Root);

    }

    private void doRefresh(LayerCollection theLayers,

        DefaultMutableTreeNode parentNode) {

        int width = m_Tree.getWidth();

        if (width == 0) {

            width = 300;

        }

        Dimension sizeLeaf = new Dimension(width, 15);

        // Get the tree font height

        Font font = m_Tree.getFont();

        FontMetrics metrics = this.getFontMetrics(font);

        Dimension sizeBranch = new Dimension(width, metrics.getHeight() + 4);

        for (int i = theLayers.getLayersCount() - 1; i >= 0; i--) {

            FLayer lyr = theLayers.getLayer(i);

            if (!lyr.isInTOC()) {

                continue;

            }

            TocItemBranch elTema = new TocItemBranch(lyr);

            elTema.setSize(sizeBranch);

            DefaultMutableTreeNode nodeLayer =

                new DefaultMutableTreeNode(elTema);

            m_TreeModel.insertNodeInto(nodeLayer, parentNode,

                parentNode.getChildCount());

            if (lyr instanceof LayerCollection) {

                LayerCollection group = (LayerCollection) lyr;

                doRefresh(group, nodeLayer);

            } else {

                if (lyr instanceof Classifiable) {// && !(lyr instanceof

                                                  // FLyrAnnotation)) {

                    Classifiable classifiable = (Classifiable) lyr;

                    ILegend legendInfo = classifiable.getLegend();

                    try {

                        if (legendInfo instanceof IClassifiedLegend) {

                            IClassifiedLegend cl =

                                (IClassifiedLegend) legendInfo;

                            String[] descriptions = cl.getDescriptions();

                            ISymbol[] symbols = cl.getSymbols();

                            for (int j = 0; j < descriptions.length; j++) {

                                TocItemLeaf itemLeaf;

                                itemLeaf =

                                    new TocItemLeaf(symbols[j],

                                        descriptions[j], classifiable.getShapeType());

                                itemLeaf.setSize(sizeLeaf);

                                DefaultMutableTreeNode nodeValue =

                                    new DefaultMutableTreeNode(itemLeaf);

                                m_TreeModel.insertNodeInto(nodeValue,

                                    nodeLayer, nodeLayer.getChildCount());

                            }

                        }

                        if (legendInfo instanceof ISingleSymbolLegend

                            && (legendInfo.getDefaultSymbol() != null)) {

                            TocItemLeaf itemLeaf;

                            itemLeaf =

                                new TocItemLeaf(legendInfo.getDefaultSymbol(),

                                    legendInfo.getDefaultSymbol()

                                        .getDescription(), classifiable.getShapeType());

                            itemLeaf.setSize(sizeLeaf);

                            DefaultMutableTreeNode nodeValue =

                                new DefaultMutableTreeNode(itemLeaf);

                            m_TreeModel.insertNodeInto(nodeValue, nodeLayer,

                                nodeLayer.getChildCount());

                        }

                        if (legendInfo instanceof IHasImageLegend) {

                            TocItemLeaf itemLeaf;

                            IHasImageLegend imageLegend = (IHasImageLegend) legendInfo;

                            Image image = imageLegend.getImageLegend();

                            int w = 0;

                            int h = 0;

                            if(image != null) {

                                    w = image.getWidth(null);

                                    h = image.getHeight(null);

                            }

                            if (image != null && w > 0 && h > 0) {

                                itemLeaf = new TocItemLeaf();

                                itemLeaf.setImageLegend(image, "", new Dimension(w, h));

                                DefaultMutableTreeNode nodeValue =

                                    new DefaultMutableTreeNode(itemLeaf);

                                m_TreeModel.insertNodeInto(nodeValue, nodeLayer,

                                    nodeLayer.getChildCount());

                            }

                        }

                    } catch (ReadException e) {

                        logger.error(MessageFormat.format(

                            "Can't add leyend of layer {0} to the TOC.", lyr),

                            e);

                    }

                } 

            } // if instanceof layers

        }

    }

    /**

     * @see com.iver.cit.opensig.gui.toc.ITocOrderListener#orderChanged(int,

     *      int)

     */

    public void orderChanged(int oldPos, int newPos, FLayers lpd) {

        try {

            lpd.moveTo(oldPos, newPos);

        } catch (CancelationException e) {

            logger.error("Can't change order of layers in TOC", e);

        }

        mapContext.invalidate();

    }

    public void parentChanged(FLayers lpo, FLayers lpd, FLayer ls) {

        lpo.move(ls, lpd);

        mapContext.invalidate();

    }

    /*

     * (non-Javadoc)

     * 

     * @see java.awt.event.ComponentListener#componentHidden(java.awt.event.

     * ComponentEvent)

     */

    public void componentHidden(ComponentEvent e) {

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * java.awt.event.ComponentListener#componentMoved(java.awt.event.ComponentEvent

     * )

     */

    public void componentMoved(ComponentEvent e) {

    }

    /*

     * (non-Javadoc)

     * 

     * @see java.awt.event.ComponentListener#componentResized(java.awt.event.

     * ComponentEvent)

     */

    public void componentResized(ComponentEvent e) {

        DefaultMutableTreeNode n;

        @SuppressWarnings("rawtypes")

        Enumeration enumeration = m_Root.children();

        while (enumeration.hasMoreElements()) {

            n = (DefaultMutableTreeNode) enumeration.nextElement();

            if (n.getUserObject() instanceof TocItemBranch) {

                ITocItem item = (ITocItem) n.getUserObject();

                Dimension szAnt = item.getSize();

                item.setSize(new Dimension(this.getWidth() - 40, szAnt.height));

            }

        }

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * java.awt.event.ComponentListener#componentShown(java.awt.event.ComponentEvent

     * )

     */

    public void componentShown(ComponentEvent e) {

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerListener#legendChanged(com.iver.cit

     * .gvsig.fmap.rendering.LegendChangedEvent)

     */

    public void legendChanged(final LegendChangedEvent e) {

        if (!SwingUtilities.isEventDispatchThread()) {

            SwingUtilities.invokeLater(new Runnable() {

                public void run() {

                    legendChanged(e);

                }

            });

            return;

        }

        refresh();

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerAdded(com

     * .iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

     */

    public void layerAdded(final LayerCollectionEvent e) {

        if (!SwingUtilities.isEventDispatchThread()) {

            SwingUtilities.invokeLater(new Runnable() {

                public void run() {

                    layerAdded(e);

                }

            });

            return;

        }

        FLayer layer = e.getAffectedLayer();

        if( layer instanceof FLyrVect ) {

            FLyrVect layerVect = (FLyrVect)layer;

            ILegend legend = layerVect.getLegend();

            switch( e.getEventType() ) {

                case LayerCollectionEvent.LAYER_ADDED :

                    legend.addLegendListener(this);

                    break;

                case LayerCollectionEvent.LAYER_REMOVED :

                    legend.removeLegendListener(this);

                    break;

            }

        }

        refresh();

    }

    public boolean symbolChanged(SymbolLegendEvent e) {

        refresh();

        return true;

    }

    public void legendCleared(LegendClearEvent event) {

        refresh();

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerMoved(com

     * .iver.cit.gvsig.fmap.layers.LayerPositionEvent)

     */

    public void layerMoved(final LayerPositionEvent e) {

        if (!SwingUtilities.isEventDispatchThread()) {

            SwingUtilities.invokeLater(new Runnable() {

                public void run() {

                    layerMoved(e);

                }

            });

            return;

        }

        refresh();

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerRemoved(com

     * .iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

     */

    public void layerRemoved(final LayerCollectionEvent e) {

        if (!SwingUtilities.isEventDispatchThread()) {

            SwingUtilities.invokeLater(new Runnable() {

                public void run() {

                    layerRemoved(e);

                }

            });

            return;

        }

        m_ItemsExpanded.remove(e.getAffectedLayer().getName());

        refresh();

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerAdding(com

     * .iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

     */

    public void layerAdding(LayerCollectionEvent e) throws CancelationException {

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerMoving(com

     * .iver.cit.gvsig.fmap.layers.LayerPositionEvent)

     */

    public void layerMoving(LayerPositionEvent e) throws CancelationException {

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerRemoving(

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

     */

    public void layerRemoving(LayerCollectionEvent e)

        throws CancelationException {

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#activationChanged

     * (com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

     */

    public void activationChanged(LayerCollectionEvent e)

        throws CancelationException {

        repaint();

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#visibilityChanged

     * (com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

     */

    public void visibilityChanged(final LayerCollectionEvent e)

        throws CancelationException {

        if (!SwingUtilities.isEventDispatchThread()) {

            SwingUtilities.invokeLater(new Runnable() {

                public void run() {

                    visibilityChanged(e);

                }

            });

            return;

        }

        repaint();

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * javax.swing.event.TreeExpansionListener#treeCollapsed(javax.swing.event

     * .TreeExpansionEvent)

     */

    public void treeCollapsed(TreeExpansionEvent event) {

        TreePath path = event.getPath();

        DefaultMutableTreeNode n =

            (DefaultMutableTreeNode) path.getLastPathComponent();

        if (n.getUserObject() instanceof ITocItem) {

            ITocItem item = (ITocItem) n.getUserObject();

            Boolean b = Boolean.FALSE;

            m_ItemsExpanded.put(item.getLabel(), b);

        }

    }

    /*

     * (non-Javadoc)

     * 

     * @see

     * javax.swing.event.TreeExpansionListener#treeExpanded(javax.swing.event

     * .TreeExpansionEvent)

     */

    public void treeExpanded(TreeExpansionEvent event) {

        TreePath path = event.getPath();

        DefaultMutableTreeNode n =

            (DefaultMutableTreeNode) path.getLastPathComponent();

        if (n.getUserObject() instanceof ITocItem) {

            ITocItem item = (ITocItem) n.getUserObject();

            Boolean b = Boolean.TRUE;

            m_ItemsExpanded.put(item.getLabel(), b);

        }

    }

    /**

     * Obtiene el JScrollPane que contiene el TOC

     * 

     * @return JScrollPane que contiene el TOC

     */

    public JScrollPane getJScrollPane() {

        return this.m_Scroller;

    }

    /**

     * DOCUMENT ME!

     * 

     * @return DOCUMENT ME!

     */

    public DnDJTree getTree() {

        return m_Tree;

    }

    /**

     * Clase Listener que reacciona al pulsar sobre el checkbox de un nodo y

     * crea un popupmenu al pulsar el bot?n derecho.

     */

    class NodeSelectionListener extends MouseAdapter implements ActionListener {

        JTree tree;

        JDialog dlg;

        JColorChooser colorChooser;

        FPopupMenu popmenu = null;

        DefaultMutableTreeNode node;

        /**

         * Crea un nuevo NodeSelectionListener.

         * 

         * @param tree

         *            DOCUMENT ME!

         */

        NodeSelectionListener(JTree tree) {

            this.tree = tree;

        }

        /**

         * DOCUMENT ME!

         * 

         * @param e

         *            DOCUMENT ME!

         */

        public void mouseClicked(MouseEvent e) {

            int x = e.getX();

            int y = e.getY();

            int row = tree.getRowForLocation(x, y);

            TreePath path = tree.getPathForRow(row);

            LayerCollection layers = mapContext.getLayers();

            if (path != null) {

                if (e.getClickCount() == 1) {

                    // this fixes a bug when double-clicking. JTree by default

                    // expands the tree when double-clicking, so we capture a

                    // different node in the second click than in the first

                    node = (DefaultMutableTreeNode) path.getLastPathComponent();

                }

                if (node != null

                    && node.getUserObject() instanceof TocItemBranch) {

                    // double click with left button ON A BRANCH/NODE (layer)

                    if (e.getClickCount() >= 2

                        && e.getButton() == MouseEvent.BUTTON1) {

                        e.consume();

                        PluginServices.getMDIManager().setWaitCursor();

                        try {

                            TocItemBranch leaf =

                                (TocItemBranch) node.getUserObject();

                            IContextMenuAction action =

                                leaf.getDoubleClickAction();

                            if (action != null) {

                                /*

                                 * if there is an action associated with the

                                 * double-clicked element it will be fired for

                                 * it and FOR ALL OTHER COMPATIBLES THAT HAVE

                                 * BEEN ACTIVATED.

                                 */

                                ArrayList<FLayer> targetLayers =

                                    new ArrayList<FLayer>();

                                TocItemBranch owner =

                                    (TocItemBranch) node.getUserObject();

                                FLayer masterLayer = owner.getLayer();

                                targetLayers.add(masterLayer);

                                FLayer[] actives =

                                    mapContext.getLayers().getActives();

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

                                    if (actives[i].getClass().equals(

                                        masterLayer.getClass())) {

                                        if (actives[i] instanceof FLyrVect) {

                                            FLyrVect vectorLayer =

                                                (FLyrVect) actives[i];

                                            FLyrVect vectorMaster =

                                                (FLyrVect) masterLayer;

                                            if (vectorLayer.getShapeType() == vectorMaster

                                                .getShapeType()) {

                                                targetLayers.add(vectorLayer);

                                            } else {

                                                vectorLayer.setActive(false);

                                            }

                                        }

                                        // TODO for the rest of layer types

                                        // (i.e. FLyrRaster)

                                    } else {

                                        actives[i].setActive(false);

                                    }

                                }

                                // Do nothing if there is a non-available layer

                                for (int k=0; k<targetLayers.size(); k++) {

                                    if (!targetLayers.get(k).isAvailable()) {

                                        return;

                                    }

                                }

                                action.execute(leaf,

                                    targetLayers.toArray(new FLayer[0]));

                            }

                        } catch (Exception ex) {

                            NotificationManager.addError(ex);

                        } finally {

                            PluginServices.getMDIManager().restoreCursor();

                        }

                        return;

                    }

                    TocItemBranch elTema = (TocItemBranch) node.getUserObject();

                    FLayer lyr = elTema.getLayer();

                    lyr.getMapContext().beginAtomicEvent();

                    if (((e.getModifiers() & InputEvent.SHIFT_MASK) != 0)

                        && (e.getButton() == MouseEvent.BUTTON1)) {

                        FLayer[] activeLayers = layers.getActives();

                        if (activeLayers.length > 0) {

                            selectInterval(layers, lyr);

                        } else {

                            updateActive(lyr, !lyr.isActive());

                        }

                    } else {

                        if (!((e.getModifiers() & InputEvent.CTRL_MASK) != 0)

                            && (e.getButton() == MouseEvent.BUTTON1)) {

                            layers.setAllActives(false);

                        }

                        if (e.getButton() == MouseEvent.BUTTON1) {

                            // lyr.setActive(true);

                            updateActive(lyr, !lyr.isActive());

                        }

                    }

                    // Si pertenece a un grupo, lo ponemos activo tambi?n.

                    // FLayer parentLayer = lyr.getParentLayer();

                    /*

                     * if (parentLayer != null) { parentLayer.setActive(true); }

                     */

                    Point layerNodeLocation =

                        tree.getUI().getPathBounds(tree, path).getLocation();

                    // Rect?ngulo que representa el checkbox

                    Rectangle checkBoxBounds =

                        m_TocRenderer.getCheckBoxBounds();

                    checkBoxBounds.translate((int) layerNodeLocation.getX(),

                        (int) layerNodeLocation.getY());

                    if (checkBoxBounds.contains(e.getPoint())) {

                        updateVisible(lyr);

                    }

                    // }

                    if (e.getButton() == MouseEvent.BUTTON3) {

                        // Boton derecho sobre un nodo del arbol

                        // if ((e.getModifiers() & InputEvent.META_MASK) != 0) {

                        popmenu = new FPopupMenu(mapContext, node);

                        tree.add(popmenu);

                        popmenu.show(e.getComponent(), e.getX(), e.getY());

                        // }

                    }

                    lyr.getMapContext().endAtomicEvent();

                }

                if (node != null && node.getUserObject() instanceof TocItemLeaf) {

                    // double click with left button ON A LEAF (ISymbol)

                    if (e.getClickCount() >= 2

                        && e.getButton() == MouseEvent.BUTTON1) {

                        e.consume();

                        PluginServices.getMDIManager().setWaitCursor();

                        try {

                            TocItemLeaf leaf =

                                (TocItemLeaf) node.getUserObject();

                            IContextMenuAction action =

                                leaf.getDoubleClickAction();

                            if (action != null) {

                                /*

                                 * if there is an action associated with the

                                 * double-clicked element it will be fired for

                                 * it and FOR ALL OTHER COMPATIBLES THAT HAVE

                                 * BEEN ACTIVATED.

                                 */

                                ArrayList<FLayer> targetLayers =

                                    new ArrayList<FLayer>();

                                TocItemBranch owner =

                                    (TocItemBranch) ((DefaultMutableTreeNode) node

                                        .getParent()).getUserObject();

                                FLayer masterLayer = owner.getLayer();

                                targetLayers.add(masterLayer);

                                FLayer[] actives =

                                    mapContext.getLayers().getActives();

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

                                    if (actives[i].getClass().equals(

                                        masterLayer.getClass())) {

                                        if (actives[i] instanceof FLyrVect) {

                                            FLyrVect vectorLayer =

                                                (FLyrVect) actives[i];

                                            FLyrVect vectorMaster =

                                                (FLyrVect) masterLayer;

                                            int masterLayerShapetypeOF_THE_LEGEND =

                                                ((IVectorLegend) vectorMaster

                                                    .getLegend())

                                                    .getShapeType();

                                            int anotherVectorLayerShapetypeOF_THE_LEGEND =

                                                ((IVectorLegend) vectorLayer

                                                    .getLegend())

                                                    .getShapeType();

                                            if (masterLayerShapetypeOF_THE_LEGEND == anotherVectorLayerShapetypeOF_THE_LEGEND) {

                                                targetLayers.add(vectorLayer);

                                            } else {

                                                vectorLayer.setActive(false);

                                            }

                                        }

                                        // TODO for the rest of layer types

                                        // (i.e. FLyrRaster)

                                    } else {

                                        actives[i].setActive(false);

                                    }

                                }

                                action.execute(leaf,

                                    targetLayers.toArray(new FLayer[0]));

                            }

                        } catch (Exception ex) {

                            NotificationManager.addError(ex);

                        } finally {

                            PluginServices.getMDIManager().restoreCursor();

                        }

                        return;

                    }

                    // Boton derecho sobre un Simbolo

                    // TocItemLeaf auxLeaf = (TocItemLeaf) node.getUserObject();

                    // FSymbol theSym = auxLeaf.getSymbol();

                    if ((e.getModifiers() & InputEvent.META_MASK) != 0) {

                        popmenu = new FPopupMenu(mapContext, node);

                        tree.add(popmenu);

                        popmenu.show(e.getComponent(), e.getX(), e.getY());

                    }

                }

                ((DefaultTreeModel) tree.getModel()).nodeChanged(node);

                if (row == 0) {

                    tree.revalidate();

                    tree.repaint();

                }

                if (PluginServices.getMainFrame() != null) {

                    PluginServices.getMainFrame().enableControls();

                }

            } else {

                if (e.getButton() == MouseEvent.BUTTON3) {

                    popmenu = new FPopupMenu(mapContext, null);

                    tree.add(popmenu);

                    popmenu.show(e.getComponent(), e.getX(), e.getY());

                }

            }

        }

        private void selectInterval(LayerCollection layers, FLayer lyr) {

            FLayer[] activeLayers = layers.getActives();

            // if (activeLayers[0].getParentLayer() instanceof FLayers &&

            // activeLayers[0].getParentLayer().getParentLayer()!=null) {

            // selectInterval((LayerCollection)activeLayers[0].getParentLayer(),lyr);

            // }

            for (int j = 0; j < layers.getLayersCount(); j++) {

                FLayer layerAux = layers.getLayer(j);

                // Si se cumple esta condici?n es porque la primera capa que nos

                // encontramos en el TOC es la que estaba activa

                if (activeLayers[0].equals(layerAux)) {

                    boolean isSelected = false;

                    for (int i = 0; i < layers.getLayersCount(); i++) {

                        FLayer layer = layers.getLayer(i);

                        if (!isSelected) {

                            isSelected = layer.isActive();

                        } else {

                            updateActive(layer, true);

                            if (lyr.equals(layer)) {

                                isSelected = false;

                            }

                        }

                    }

                    break;

                } else

                    // Si se cumple esta condici?n es porque la primera capa que

                    // nos

                    // encontramos en el TOC es la que acabamos de seleccionar

                    if (lyr.equals(layerAux)) {

                        boolean isSelected = false;

                        for (int i = layers.getLayersCount() - 1; i >= 0; i--) {

                            FLayer layer = layers.getLayer(i);

                            if (!isSelected) {

                                isSelected = layer.isActive();

                            } else {

                                updateActive(layer, true);

                                if (lyr.equals(layer)) {

                                    isSelected = false;

                                }

                            }

                        }

                        break;

                    }

            }

        }

        /**

         * DOCUMENT ME!

         * 

         * @param lyr

         *            DOCUMENT ME!

         * @param active

         *            DOCUMENT ME!

         */

        private void updateActive(FLayer lyr, boolean active) {

            lyr.setActive(active);

            updateActiveChild(lyr);

        }

        /**

         * DOCUMENT ME!

         * 

         * @param lyr

         *            DOCUMENT ME!

         */

        private void updateActiveChild(FLayer lyr) {

            if (lyr instanceof FLayers) { // Es la raiz de una rama o

                // cualquier nodo intermedio.

                FLayers layergroup = (FLayers) lyr;

                for (int i = 0; i < layergroup.getLayersCount(); i++) {

                    layergroup.getLayer(i).setActive(lyr.isActive());

                    updateActiveChild(layergroup.getLayer(i));

                }

            }

        }

        /**

         * Actualiza la visibilidad de la capas.

         * 

         * @param lyr

         *            Capa sobre la que se est? clickando.

         */

        private void updateVisible(FLayer lyr) {

            if (lyr.isAvailable()) {

                lyr.setVisible(!lyr.visibleRequired());

                updateVisibleChild(lyr);

                updateVisibleParent(lyr);

            }

        }

        /**

         * Actualiza de forma recursiva la visibilidad de los hijos de la capa

         * que se pasa como par?metro.

         * 

         * @param lyr

         *            Capa a actualizar.

         */

        private void updateVisibleChild(FLayer lyr) {

            if (lyr instanceof FLayers) { // Es la raiz de una rama o

                                          // cualquier nodo intermedio.

                FLayers layergroup = (FLayers) lyr;

                for (int i = 0; i < layergroup.getLayersCount(); i++) {

                    layergroup.getLayer(i).setVisible(lyr.visibleRequired());

                    updateVisibleChild(layergroup.getLayer(i));

                }

            }

        }

        /**

         * Actualiza de forma recursiva la visibilidad del padre de la capa que

         * se pasa como par?metro.

         * 

         * @param lyr

         *            Capa a actualizar.

         */

        private void updateVisibleParent(FLayer lyr) {

            FLayers parent = lyr.getParentLayer();

            if (parent != null) {

                boolean parentVisible = false;

                for (int i = 0; i < parent.getLayersCount(); i++) {

                    if (parent.getLayer(i).visibleRequired()) {

                        parentVisible = true;

                    }

                }

                parent.setVisible(parentVisible);

                updateVisibleParent(parent);

            }

        }

        /**

         * DOCUMENT ME!

         * 

         * @param arg0

         *            DOCUMENT ME!

         */

        public void actionPerformed(ActionEvent arg0) {

        }

        /**

         * DOCUMENT ME!

         * 

         * @param arg0

         *            DOCUMENT ME!

         */

        public void mouseReleased(MouseEvent arg0) {

            super.mouseReleased(arg0);

        }

        /**

         * DOCUMENT ME!

         * 

         * @param arg0

         *            DOCUMENT ME!

         */

        public void mouseEntered(MouseEvent arg0) {

            super.mouseEntered(arg0);

        }

    }

    private boolean invisibilityIsForced() {

        PluginServices ps = PluginServices.getPluginServices(this);

        XMLEntity xml = ps.getPersistentXML();

        if (xml.contains(ViewPage.ADD_NEW_LAYERS_IN_INVISIBLE_MODE_KEY_NAME)) {

            // Get invisibility value

            return xml.getBooleanProperty(ViewPage.ADD_NEW_LAYERS_IN_INVISIBLE_MODE_KEY_NAME);

        } else {

            // not found in preferences

            return false;

        }

    }

}