Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package com.iver.andami;

import java.awt.KeyEventDispatcher;

import java.awt.event.KeyEvent;

import java.util.Hashtable;

import javax.swing.KeyStroke;

public class GlobalKeyEventDispatcher implements KeyEventDispatcher {

        private static GlobalKeyEventDispatcher globalKeyDispatcher = null;

        private static Hashtable registeredKeys = new Hashtable();

        static GlobalKeyEventDispatcher getInstance()

        {

                if (globalKeyDispatcher == null)

                        globalKeyDispatcher = new GlobalKeyEventDispatcher();

                return globalKeyDispatcher;

        }

        public void registerKeyStroke(KeyStroke key, KeyEventDispatcher disp)

                throws RuntimeException

        {

                if (registeredKeys.containsKey(key))

                {

                        KeyEventDispatcher a = (KeyEventDispatcher) registeredKeys.get(key);

                        throw new RuntimeException("Error: La tecla " + key +

                                        " ya est? asignada al action" + a);

                }

                registeredKeys.put(key, disp);

        }

    public void removeKeyStrokeBinding(KeyStroke key) {

            registeredKeys.remove(key);

    }

    public void removeAll() {

            registeredKeys.clear();

    }

    public KeyEventDispatcher getListenerAssignedTo(KeyStroke key)

    {

            return (KeyEventDispatcher) registeredKeys.get(key);

    }

        private GlobalKeyEventDispatcher()

        {

        }

        public boolean dispatchKeyEvent(KeyEvent e) {

                KeyStroke key = KeyStroke.getKeyStroke(e.getKeyCode(), e.getModifiers());

                KeyEventDispatcher a = getListenerAssignedTo(key);

                if (a!=null)

                {

                        //System.err.println("DEBUG: KeyEvent " + e +

                        //                ".Antes de ejecutar action=" + a);

                        return a.dispatchKeyEvent(e);

                }

                return false;

        }

}