Application: gvSIG desktop

/*

 * Created on 04-may-2004

 */

package org.cresques.px.dxf;

import java.util.Vector;

import java.util.Iterator;

import java.awt.Graphics2D;

import java.awt.geom.Point2D;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.cresques.geo.Projected;

import org.cresques.geo.ViewPortData;

import org.cresques.px.Extent;

import org.cresques.px.IObjList;

import org.cresques.px.PxObj;

import org.cresques.px.PxObjList;

/**

 * FeatureCollection de .gml y .shp

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

 */

public class DxfEntityList extends PxObj implements IObjList.vector {

        IProjection proj = null;

        private Vector data = null;

        public DxfEntityList(IProjection proj) {

                extent = new Extent();

                data = new Vector();

        }

        public void add(Extent.Has obj) {

                if (obj != null) {

                        extent.add(obj.getExtent());

                        data.add(obj);

                }

        }

        public Extent.Has get(int cnt) {

                return (Extent.Has) data.get(cnt);

        }

        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 IProjection getProjection() { return proj; }

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

        public void reProject(ICoordTrans rp) {

                extent = new Extent();

                PxObj o;

                Iterator iter = iterator();

                while (iter.hasNext()) {

                        o = (PxObj) iter.next();

                        ((Projected) o).reProject(rp);

                        extent.add(o.getExtent());

                }

                setProjection(rp.getPDest());

        }

        public void draw(Graphics2D g, ViewPortData vp) {

                Iterator iter = iterator();

                Extent extent;

                while (iter.hasNext()) {

                        DxfEntity entity = (DxfEntity) iter.next();

                        extent = entity.getExtent();

                        if (vp.getExtent().minX()> extent.maxX()) continue;

                        if (vp.getExtent().minY()> extent.maxY()) continue;

                        if (vp.getExtent().maxX()< extent.minX()) continue;

                        if (vp.getExtent().maxY()< extent.minY()) continue;

                        if (!entity.layer.frozen && ! entity.layer.isOff)

                                entity.draw(g, vp);

                }

        }

        public String toDxfString() {

                StringBuffer sb = new StringBuffer("");

                Iterator iter = iterator();

                Extent extent;

                while (iter.hasNext()) {

                        sb.append(((DxfEntity) iter.next()).toDxfString());

                }

                return sb.toString();

        }

}