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.dxf;

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 java.awt.Graphics2D;

import java.awt.geom.Point2D;

import java.util.Iterator;

import java.util.Vector;

/**

 * 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();

    }

}