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

 *

 * Copyright (C) 2007 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.

 */

package org.gvsig.fmap.raster.legend;

import java.awt.Color;

import java.util.Arrays;

import java.util.List;

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

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

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

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

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

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

import org.gvsig.raster.datastruct.ColorItem;

import org.gvsig.raster.datastruct.ColorTable;

import org.gvsig.raster.util.MathUtils;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.fill.impl.SimpleFillSymbol;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.line.impl.SimpleLineSymbol;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

/**

 * Leyenda para tablas de color aplicadas a un raster.

 *

 * @version 27/06/2007

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class ColorTableLegend implements IClassifiedLegend, IRasterLegend {

        public static final String COLOR_TABLE_LEGEND_DYNCLASS_NAME =

                        "ColorTableLegend";

        private static final String FIELD_SYMBOLS = "symbols";

        private static final String FIELD_DESCRIPTIONS = "descriptions";

        ISymbol[] symbols = null;

        String[] desc = null;

        /**

         * Crea una leyenda de tipo ColorTableLegend a partir de un objeto ColorTable

         * @param colorTable

         * @return ColorTableLegend

         */

        public static ColorTableLegend createLegend(ColorTable colorTable) {

                if ((colorTable == null) || (colorTable.getColorItems() == null))

                        return null;

                SimpleLineSymbol line = new SimpleLineSymbol();

                line.setLineColor(Color.BLACK);

                ISymbol[] symbol = new ISymbol[colorTable.getColorItems().size()];

                String[] desc = new String[colorTable.getColorItems().size()];

                String nameClass = null;

                for (int i = 0; i < colorTable.getColorItems().size(); i++) {

                        SimpleFillSymbol s = new SimpleFillSymbol();

                        s.setOutline(line);

                        s.setFillColor(((ColorItem) colorTable.getColorItems().get(i)).getColor());

                        nameClass = ((ColorItem) colorTable.getColorItems().get(i)).getNameClass();

                        if ((nameClass == null) || (nameClass.equals(""))){

                                if (i < (colorTable.getColorItems().size() - 1)){

                                        desc[i] = "[" + MathUtils.format(((ColorItem) colorTable.getColorItems().get(i)).getValue(), 2) + " , " + MathUtils.format(((ColorItem) colorTable.getColorItems().get(i + 1)).getValue(), 2) + "[ ";

                                }else{

                                        desc[i] = "[" + MathUtils.format(((ColorItem) colorTable.getColorItems().get(i)).getValue(), 2) + "] ";

                                }

                        }else{

                                desc[i] = ((ColorItem) colorTable.getColorItems().get(i)).getNameClass();

                        }        

                        symbol[i] = s;

                }

                return new ColorTableLegend(symbol, desc);

        }

        /**

         * Leyenda para tablas de color raster.

         * @param s Lista de simbolos

         * @param d Lista de descripciones de simbolos

         */

        public ColorTableLegend(ISymbol[] s, String[] d) {

                symbols = s;

                desc = d;

        }

        /**

         * Empty constructor used only for persistence purposes.

         */

        public ColorTableLegend() {

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.rendering.IClassifiedLegend#getDescriptions()

         */

        public String[] getDescriptions() {

                return desc;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.rendering.IClassifiedLegend#getSymbols()

         */

        public ISymbol[] getSymbols() {

                return symbols;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.rendering.IClassifiedLegend#getValues()

         */

        public Object[] getValues() {

                return desc;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.rendering.ILegend#cloneLegend()

         */

        public ILegend cloneLegend() {

                return null;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.rendering.ILegend#getDefaultSymbol()

         */

        public ISymbol getDefaultSymbol() {

                return null;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.cit.gvsig.fmap.rendering.ILegend#getSLDString(java.lang.String)

         */

        public String getSLDString(String layerName) {

                return null;

        }

        /*

         * (non-Javadoc)

         * @see com.iver.utiles.IPersistance#getClassName()

         */

        public String getClassName() {

                return null;

        }

        public void addLegendListener(LegendContentsChangedListener listener) {

                // TODO Auto-generated method stub

        }

        public void fireDefaultSymbolChangedEvent(SymbolLegendEvent event) {

                // TODO Auto-generated method stub

        }

        public LegendContentsChangedListener[] getListeners() {

                // TODO Auto-generated method stub

                return null;

        }

        public void removeLegendListener(LegendContentsChangedListener listener) {

                // TODO Auto-generated method stub

        }

        @Override

        public Object clone() throws CloneNotSupportedException {

                // TODO Auto-generated method stub

                return super.clone();

        }

        private void setDescriptions(String[] descriptions) {

                this.desc = descriptions;

        }

        private void setSymbols(ISymbol[] symbols) {

                this.symbols = symbols;

        }

        @SuppressWarnings("unchecked")

        public void loadFromState(PersistentState state)

                        throws PersistenceException {

                List<ISymbol> symbols = (List<ISymbol>) state.get(FIELD_SYMBOLS);

                setSymbols(symbols.toArray(new ISymbol[symbols.size()]));

                List<String> descriptions =

                                (List<String>) state.get(FIELD_DESCRIPTIONS);

                setDescriptions(descriptions.toArray(new String[descriptions.size()]));

        }

        public void saveToState(PersistentState state) throws PersistenceException {

                state.set(FIELD_SYMBOLS, Arrays.asList(getSymbols()));

                state.set(FIELD_DESCRIPTIONS, Arrays.asList(getDescriptions()));

        }

        public static void registerPersistence() {

                PersistenceManager manager = ToolsLocator.getPersistenceManager();

                DynStruct definition = manager.addDefinition(

                                ColorTableLegend.class,

                                COLOR_TABLE_LEGEND_DYNCLASS_NAME,

                                COLOR_TABLE_LEGEND_DYNCLASS_NAME+" Persistence definition",

                                null, 

                                null

                );

                // Symbols

                definition.addDynFieldList(FIELD_SYMBOLS).setMandatory(true);

                // Descriptions

                definition.addDynFieldList(FIELD_DESCRIPTIONS).setMandatory(true);

        }

}