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

 *

 * Copyright (C) 2005 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

 */

/* CVS MESSAGES:

 *

 * $Id: IMultiLayerSymbol.java 20989 2008-05-28 11:05:57Z jmvivo $

 * $Log$

 * Revision 1.5  2007-08-16 06:55:19  jvidal

 * javadoc updated

 *

 * Revision 1.4  2007/08/09 08:04:36  jvidal

 * javadoc

 *

 * Revision 1.3  2007/08/09 07:57:42  jvidal

 * javadoc

 *

 * Revision 1.2  2007/03/09 11:20:56  jaume

 * Advanced symbology (start committing)

 *

 * Revision 1.1.2.1  2007/02/16 10:54:12  jaume

 * multilayer splitted to multilayerline, multilayermarker,and  multilayerfill

 *

 *

 */

package org.gvsig.fmap.mapcontext.rendering.symbols;

/**

 * Allows to create multi layer symbols using the composition of

 * several symbols of the same type.Depending on the type of the symbols that are

 * used to compose the final symbol, the user will have MultiLayerMarkerSymbol,

 * MultiLayerLineSymbol,...

 *

 */

public interface IMultiLayerSymbol extends ISymbol {

        /**

         * Establishes a concret symbol for a layer

         *

         * @param index, index of the layer

         * @param layer, symbol to be "applied" to the layer

         * @throws IndexOutOfBoundsException

         */

        public abstract void setLayer(int index, ISymbol layer)

        throws IndexOutOfBoundsException;

        /**

         * Changes the position of two layers in a multilayersymbol

         * @param index1, index of the layer

         * @param index2, index of the layer

         */

        public abstract void swapLayers(int index1, int index2);

        /**

         * Obtains  the symbol that "contains" a layer whose index is the argument of the method.

         * @param layerIndex

         * @return

         */

        public abstract ISymbol getLayer(int layerIndex);

        /**

         * Returns the number of layers

         * @return int

         */

        public abstract int getLayerCount();

        /**

         * Stacks a new symbol to the symbol list. The symbol is appended to the

         * list and, in terms of use, it will be the last symbol to be processed.

         * @param ISymbol newLayer

         */

        public abstract void addLayer(ISymbol newLayer);

        /**

         * Stacks a new symbol to the symbol list. The symbol is appended to the

         * list in the specified position.

         * @param ISymbol newLayer

         */

        public abstract void addLayer(ISymbol newLayer, int layerIndex)

        throws IndexOutOfBoundsException;

        /**

         * TODO maybe push it up to ISymbol

         * @param layer

         * @return true if this symbol contains the removed one

         */

        public abstract boolean removeLayer(ISymbol layer);

}