| gvSIG desktop 1

/* 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: DefaultLabelingStrategy.java 10099 2007-02-02 16:21:24Z jaume $

* $Log$

* Revision 1.1.2.2  2007-02-02 16:21:24  jaume

* start commiting labeling stuff

*

* Revision 1.1.2.1  2007/02/01 17:46:49  jaume

* *** empty log message ***

*

*

*/

package com.iver.cit.gvsig.fmap.rendering.styling;

import java.awt.Graphics2D;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.util.logging.Level;

import java.util.logging.Logger;

import com.iver.cit.gvsig.fmap.DriverException;

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.core.FShape;

import com.iver.cit.gvsig.fmap.core.IGeometry;

import com.iver.cit.gvsig.fmap.core.symbols.TextSymbol;

import com.iver.cit.gvsig.fmap.drivers.DriverIOException;

import com.iver.cit.gvsig.fmap.layers.FBitSet;

import com.iver.cit.gvsig.fmap.layers.FLayer;

import com.iver.cit.gvsig.fmap.layers.FLyrVect;

import com.iver.utiles.XMLEntity;

import com.iver.utiles.swing.threads.Cancellable;

/**

 * This is the default and simplest (therefore fastest) labeling strategy.

 * @author jaume dominguez faus - jaume.dominguez@iver.es

 *

 */

public class DefaultLabelingStrategy implements ILabelingStrategy {

        private static Logger logger = Logger.getAnonymousLogger();

        private ILabelingMethod method;

        private PlacementConstraints placementConstraints;

        private FLyrVect layer;

        protected DefaultLabelingStrategy(FLayer layer) throws DriverException {

                FLyrVect l = (FLyrVect) layer;

                this.layer = l;

                placementConstraints = new PlacementConstraints(l.getShapeType());

                method = new EquallyLabeled();

        }

        public ILabelingMethod getLabelingMethod() {

                return method;

        }

        public void setLabelingMethod(ILabelingMethod method) {}

        public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort, Cancellable cancel) throws DriverException {

                 Rectangle2D theExtent = viewPort.getAdjustedExtent();

                 FBitSet bs = layer.queryByRect(theExtent);

                 LabelClass lc = method.getDefaultLabelClass();

                 // TODO meter el ZoomConstraints

                 TextSymbol sym = lc.getLabelSymbol();

                 for(int i=bs.nextSetBit(0); i>=0; i=bs.nextSetBit(i+1)) {

                         IGeometry geom;

                         try {

                                 geom = layer.getSource().getShape(i);

                                 FShape shp = placementConstraints.getLocationFor(geom, sym, null);

                                 sym.draw(g, viewPort.getAffineTransform(), shp);

                         } catch (DriverIOException e) {

                                 // TODO Auto-generated catch block

                                 logger.log(Level.SEVERE, "Draw label for "+i+"th shape of "+layer.getName());

                         }

                 }

        }

        public String getClassName() {

                return getClass().getName();

        }

        public XMLEntity getXMLEntity() {

                // TODO Implement it

                throw new Error("Not yet implemented!");

        }

        public void setXMLEntity(XMLEntity xml) {

                // TODO Implement it

                throw new Error("Not yet implemented!");

        }

        public PlacementConstraints getPlacementConstraints() {

                return placementConstraints;

        }

        public void setPlacementConstraints(PlacementConstraints constraints) {}

}