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

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

/**

 * Abstract class that implements the interface for legends composed by

 * classified symbols.It will have two methods that will be executed depending

 * on the action that had been done with the legend (addition of a new symbol or

 * clear the legend).

 *

 * @author pepe vidal salvador - jose.vidal.salvador@iver.es

 */

public abstract class AbstractClassifiedVectorLegend extends AbstractLegend implements IClassifiedVectorLegend {

        private String[] fieldNames;

        private int[] fieldTypes;

        private ZSort zSort;

        /**

         * Looks for a change in a classified symbol of a legend. To perform

         * it, the Array of LegendListeners is scaned and when the corresponding

         * listener is true, the method is invoked and the change will be done.

         * @param event

         */

        public void fireClassifiedSymbolChangeEvent(SymbolLegendEvent event) {

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

                        getListeners()[i].symbolChanged(event);

                }

        }

        /**

         * Looks for a change in a legend of classified symbols. In this case

         * if the specific legend is cleared.

         * @param event

         */

        public void fireLegendClearEvent(LegendClearEvent event) {

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

                        getListeners()[i].legendCleared(event);

                }

        }

        public String[] getClassifyingFieldNames() {

                return fieldNames;

        }

        public void setClassifyingFieldNames(String[] fieldNames) {

                this.fieldNames = fieldNames;

        }

        public int[] getClassifyingFieldTypes() {

                return fieldTypes;

        }

        public void setClassifyingFieldTypes(int[] fieldTypes) {

                this.fieldTypes =  fieldTypes;

        }

        public ZSort getZSort() {

                return zSort;

        }

        public void setZSort(ZSort zSort) {

                if (zSort == null) {

                        removeLegendListener(this.zSort);

                }

                this.zSort = zSort;

                addLegendListener(zSort);

        }

        public boolean isSuitableForShapeType(int shapeType) {

                return getShapeType() == shapeType;

        }

}