| 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.core;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.Shape;

import java.awt.geom.AffineTransform;

import com.iver.utiles.IPersistance;

import com.iver.utiles.XMLEntity;

public interface ISymbol extends IPersistance {

        public final static int CHARACTER_MARKER = 1;

        public final static int SIMPLE_FILL = 2;

        public static final int MARKER_FILL = 3;

        ISymbol getSymbolForSelection();

        void draw(Graphics2D g, AffineTransform affineTransform, FShape shp);

        // In the future, we may need something like that, but now if

        // I put it, we should change the rendering process, and it will

        // be slowly.

        // El problema es que antes de renderizar algo, tenemos que calcular

        // c?mo va a quedar en pantalla, para saber su bounding box real y si

        // hay que dibujarlo o no. Pasa con los textos, pero en general

        // con cualquier s?mbolo de tipo puntual, tambi?n. En menor medida con

        // l?neas y pol?gonos.

        //

        // IDEA!!!:

        // Para no depender de leer un shape y pedirle al s?mbolo que toca

        // el bounding box para ver si hay que dibujarlo, se puede hacer una

        // pasada previa por la leyenda y ver los pixels que a?ade al bounding

        // box. (Se coge un punto, una l?nea o un pol?gono, y se calcula

        // su bounding box para esa escala. Si es mayor que el original del

        // shape, se calculan los pixels. Luego se pasan esos pixels a

        // coordenadas de mundo real, y se le suman al visibleExtent para que

        // se dibujen los trozos de texto que no se pintan, etc, etc.

        int getPixExtentPlus(Graphics2D g, AffineTransform affineTransform, Shape shp);

        /**

         * Devuelve el rgb del s?mbolo cuando se dibuja como un punto.

         *

         * @return rgb del s?mbolo.

         */

        public int getOnePointRgb();

        /**

         * Use it to specify how do you want to write the symbol in .gvp project

         * @return

         */

        XMLEntity getXMLEntity();

        /**

         * @return description of this symbol.

         */

        String getDescription();

        /**

         * TODO este javadoc es poco explicactivo

         * @return true if Shape must be drawn. Useful if you are labelling

         */

        boolean isShapeVisible();

        void setDescription(String string);

        /**

         * @return FSymbol constants. I think it is better to use isSuitableFor

         */

        int getSymbolType();

        /**

         * True if this symbol is ok for the geometry. For example, a FillSymbol will

         * be suitable for a Polygon.

         * @param geom

         * @return

         */

        boolean isSuitableFor(IGeometry geom);

        /**

         * Useful to renderer the symbol inside the TOC, or inside little

         * rectangles. For example, think about rendering a Label with size

         * in meters => You will need to specify a size in pixels.

         * Of course, you can also to choose to render a prepared image, etc.

         * @param g2

         * @param scaleInstance

         * @param r

         */

        void drawInsideRectangle(Graphics2D g, AffineTransform scaleInstance, Rectangle r);

}