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root / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / LegendChangedEvent.java @ 25274

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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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 *
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 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
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 *
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 * For more information, contact:
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 *
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 *  Generalitat Valenciana
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 *   Conselleria d'Infraestructures i Transport
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 *   Av. Blasco Ib??ez, 50
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 *   46010 VALENCIA
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 *   SPAIN
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 *
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 *      +34 963862235
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 *   gvsig@gva.es
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 *      www.gvsig.gva.es
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 *
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 *    or
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 *
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 *   IVER T.I. S.A
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 *   Salamanca 50
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 *   46005 Valencia
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 *   Spain
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 *
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 *   +34 963163400
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 *   dac@iver.es
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 */
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package com.iver.cit.gvsig.fmap.layers;
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import com.iver.cit.gvsig.fmap.FMapEvent;
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import com.iver.cit.gvsig.fmap.rendering.ILegend;
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/**
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 * <p>Event or set of events produced when changes a legend.</p>
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 *
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 * @see FMapEvent
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 * @author Vicente Caballero Navarro
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 */
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public class LegendChangedEvent extends LegendEvent {
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        /**
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         * <p>Identifies this event as a changed of a legend.</p>
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          */
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        private static final int LEGEND_CHANGED = 0;
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        /**
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         * <p>Previous vector legend.</p>
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         */
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        private ILegend oldLegend;
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        /**
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         * <p>New vector legend.</p>
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         */
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        private ILegend newLegend;
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        /**
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         * <p>Events that constitute this one.</p>
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         */
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        private LegendChangedEvent[] events;
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        /**
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         * <p>Creates a new legend change event.</p>
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         *
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         * @param oldLegend previous vector legend
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         * @param newLegend new vector legend
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         *
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         * @return a new legend change event
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         */
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        public static LegendChangedEvent createLegendChangedEvent(ILegend oldLegend,
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                        ILegend newLegend){
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                return new LegendChangedEvent(oldLegend, newLegend, LEGEND_CHANGED);
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        }
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        /**
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         * <p>Creates a new legend change event.</p>
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         *
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         * @param oldLegend previous vector legend
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         * @param newLegend new vector legend
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         */
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        private LegendChangedEvent(ILegend oldLegend,
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                        ILegend newLegend, int eventType) {
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                this.oldLegend = oldLegend;
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                this.newLegend = newLegend;
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                setEventType(eventType);
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        }
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        /**
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         * <p>Gets the previous vector legend.</p>
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         *
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         * @return the previous vector legend
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         */
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        public ILegend getOldLegend() {
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                return oldLegend;
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        }
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        /**
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         * <p>Gets the new vector legend.</p>
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         *
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         * @return the new vector legend
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         */
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        public ILegend getNewLegend() {
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                return newLegend;
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        }
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        /**
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         * <p>Gets the events that constitute this one.</p>
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         *
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         * @return an array with the events that constitute this one
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         */
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        public LegendChangedEvent[] getEvents() {
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                return events;
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        }
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        /**
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         * <p>Sets the events that constitute this one.</p>
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         *
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         * @param events an array with the events that constitute this one
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         */
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        public void setEvents(LegendChangedEvent[] events) {
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                this.events = events;
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        }
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}