| gvSIG desktop 1

/* 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.cit.gvsig.fmap.rendering;

import com.iver.cit.gvsig.fmap.core.v02.FSymbol;

import com.iver.cit.gvsig.fmap.rendering.styling.FStyle2D;

import com.iver.utiles.StringUtilities;

import com.iver.utiles.XMLEntity;

import java.awt.Color;

/**

 * Rampa de colores para el dibujado de Raster.

 *

 * @author Vicente Caballero Navarro

 */

public class ColorRamp implements RasterLegend {

        private Color firstColor;

        private Color lastColor;

        private double first;

        private double last;

        /**

         * Inserta el n?mero inicial y el color inicial.

         *

         * @param d N?mero inicial.

         * @param c Color inicial.

         */

        public void setFirstPoint(double d, Color c) {

                firstColor = c;

                first = d;

        }

        /**

         * Inserta el N?mero fianl y el color final.

         *

         * @param d N?mero final.

         * @param c Color final.

         */

        public void setLastPoint(double d, Color c) {

                lastColor = c;

                last = d;

        }

        /**

         * Devuelve el color a partir del n?mero.

         *

         * @param d N?mero.

         *

         * @return Color.

         */

        public Color getColor(double d) {

                int fr = firstColor.getRed();

                int fg = firstColor.getGreen();

                int fb = firstColor.getBlue();

                int lr = lastColor.getRed();

                int lg = lastColor.getGreen();

                int lb = lastColor.getBlue();

                double total = last - first;

                double tr = lr - fr;

                double tg = lg - fg;

                double tb = lb - fb;

                double por = (d - first) / total;

                int r = (int) ((por * tr) + fr);

                int g = (int) ((por * tg) + fg);

                int b = (int) ((por * tb) + fb);

                return new Color(r, g, b);

        }

        /**

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

         */

        public String[] getDescriptions() {

                return null;

        }

        /**

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

         */

        public FSymbol[] getSymbols() {

                return null;

        }

        /**

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

         */

        public Object[] getValues() {

                return null;

        }

        /**

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

         */

        public FSymbol getDefaultSymbol() {

                return null;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.rendering.RasterLegend#getSymbol(double)

         */

        public FStyle2D getSymbol(double d) {

                return null;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.rendering.RasterLegend#setDefaultSymbol(com.iver.cit.gvsig.fmap.rendering.styling.FStyle2D)

         */

        public void setDefaultSymbol(FStyle2D s) {

        }

        /**

         * @see com.iver.cit.gvsig.fmap.rendering.Legend#getXMLEntity()

         */

        public XMLEntity getXMLEntity() {

                XMLEntity xml = new XMLEntity();

                xml.putProperty("className",this.getClass().getName());

                xml.putProperty("first", first);

                xml.putProperty("firstColor", StringUtilities.color2String(firstColor));

                xml.putProperty("last", last);

                xml.putProperty("lastColor", StringUtilities.color2String(lastColor));

                return xml;

        }

        /**

         * Crea un ColorRamp a partir del XMLEntity.

         *

         * @param xml XMLEntity.

         *

         * @return Nuevo ColorRamp.

         */

        public static ColorRamp createFromXML(XMLEntity xml) {

                ColorRamp cr = new ColorRamp();

                cr.first = xml.getDoubleProperty("first");

                cr.firstColor = StringUtilities.string2Color(xml.getStringProperty(

                                        "fistColor"));

                cr.last = xml.getDoubleProperty("last");

                cr.lastColor = StringUtilities.string2Color(xml.getStringProperty(

                                        "lastColor"));

                return cr;

        }

        /**

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

         */

        public Legend cloneLegend() {

                return createFromXML(getXMLEntity());

        }

}