Application: gvSIG desktop

/*

 * Cresques Mapping Suite. Graphic Library for constructing mapping applications.

 * 

 * Copyright (C) 2004-5. 

 *

 * 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:

 * 

 * cresques@gmail.com

 */

package org.cresques.px.gml;

import java.awt.Graphics2D;

import java.awt.geom.Point2D;

import java.util.Hashtable;

import java.util.Iterator;

import java.util.Vector;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.cresques.geo.ViewPortData;

import org.cresques.px.Extent;

import org.cresques.px.IObjList;

import org.cresques.px.PxObj;

import org.cresques.px.dxf.DxfEntityList;

/**

 * FeatureCollection de .gml y .shp

 * @author "Luis W. Sevilla" <sevilla_lui@gva.es>

 */

// 040704 --> Acabo de a?adir a FeatureCollection las capacidades de almacenamiento

//                          propias de Feature, con el fin de utilizar las Featurecollections

//            para construir los bloques.

public class FeatureCollection extends PxObj implements IObjList.vector {

        IProjection proj = null;

        public Vector data = null;

        Hashtable property = null;

        Geometry geometry = null;

        public FeatureCollection(IProjection proj) {

                extent = new Extent();

                data = new Vector();

                property = new Hashtable();

        }

        public void setProp(String prop, String value) {

                property.put(prop, value);

        }

        public String getProp(String prop) {

                return (String) property.get(prop);

        }

        public void add(Extent.Has feature) {

                Extent ext = feature.getExtent();

                if (extent != null) {

                        extent.add(ext);

                        data.add(feature);

                }

        }

        public IObjList getAt(Point2D pt) {

                IObjList oList = new DxfEntityList(proj);

                Iterator iter = iterator();

                while (iter.hasNext()) {

                        Extent.Has o = (Extent.Has) iter.next();

                        if (o.getExtent().isAt(pt)) oList.add(o);

                }

                return oList;

        }

        public Iterator iterator() { return data.iterator(); }

        public int size() { return data.size(); }

        public void remove(Object obj) { data.remove(obj); }

        public void clear() {

                extent = new Extent();

                data.clear();

        }

        public Extent.Has get(int i) { return (Extent.Has) data.get(i); }

        public IProjection getProjection() { return proj; }

        public void setProjection(IProjection p) { proj = p; }

        public void reProject(ICoordTrans rp) {

                extent = new Extent();

                Feature f;

                Geometry g;

                Iterator iter = iterator();

                while (iter.hasNext()) {

                        f = (Feature) iter.next();

                        g = f.getGeometry();

                        g.reProject(rp);

                        extent.add(g.getExtent());

                }

                setProjection(rp.getPDest());

        }

        public void draw(Graphics2D g, ViewPortData vp) {

                Iterator iter = iterator();

                while (iter.hasNext()) {

                        Feature f = (Feature) iter.next();

                        f.draw(g, vp);

                }

        }

        public Extent getExtent() { return extent; }

}