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Geometries model for gvSIG Mini
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/* gvSIG. Geographic Information System of the Valencian Government
*
* Copyright (C) 2007-2008 Infrastructures and Transports Department
* of the Valencian Government (CIT)
* 
* 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., 51 Franklin Street, Fifth Floor, Boston, 
* MA  02110-1301, USA.
* 
*/

/*
* Prodevelop, S.L.
* Pza. Juan de Villarrasa, 14 - 5
* Valencia
* Spain
* Tel: +34 963510612
* e-mail: [email protected]
* http://www.prodevelop.es
*
*/
package es.prodevelop.gvsig.mini.geom.impl.base;

import com.vividsolutions.jts.geom.Geometry;

import es.prodevelop.gvsig.mini.exceptions.BaseException;
import es.prodevelop.gvsig.mini.geom.api.IGeometry;
import es.prodevelop.gvsig.mini.geom.impl.base.LineString;
import es.prodevelop.gvsig.mini.geom.impl.base.Point;

/**
 * An array of LineString
 * @author Alberto Romeu Carrasco ([email protected])
 */
public class MultiLineString implements IGeometry {

    private LineString[] lineStrings;
    private boolean visible = true;

    /**
     * The constructor
     * @param lineStrings An array of lineStrings
     */
    public MultiLineString(final LineString[] lineStrings) {
        this.lineStrings = lineStrings;
    }

    /**
     * Clears this instance
     */
    public void destroy() {
        final int size = lineStrings.length;
        final LineString[] lineStrings = this.lineStrings;
        
        for (int i = 0; i < size; i++) {
            lineStrings[i].destroy();
        }
        this.lineStrings = null;
    }

    /**
     * 
     * @return True if is visible
     */
    public boolean isVisible() {
        return visible;
    }

    /**
     * Sets this instance to visible or not and its array of LineString
     * @param visible
     */
    public void setVisible(final boolean visible) {
        this.visible = visible;
        final int size = this.lineStrings.length;
        
        final LineString[] lineStrings = this.lineStrings;
        for (int i = 0; i < size; i++) {
            lineStrings[i].setVisible(visible);
        }
    }   

    /**
     * 
     * @return The array of LineString
     */
    public LineString[] getLineStrings() {
        return lineStrings;
    }

    /**
     * Sets the array of LineString
     * @param lineStrings An array of LineString
     */
    public void setLineStrings(final LineString[] lineStrings) {
        this.lineStrings = lineStrings;
    }

    /**
     * 
     * @return An array of points with the coordinates of the array of LineString
     */
    public Point[] getCoordinates() {
        int size = 0;
        final LineString[] lineStrings = this.lineStrings;
        final int length = lineStrings.length;
        for (int i = 0; i < length; i++) {
            size += lineStrings[i].getXCoords().length;
        }
        Point[] coordinates = new Point[size];
        
        LineString line;
        for (int h = 0; h < length; h++) {
            line = lineStrings[h];
            final int l = line.getXCoords().length;
            for (int j = 0; j < l; j++) {
                coordinates[h] = new Point(line.getXCoords()[j], line.getYCoords()[j]);
            }
        }

        return coordinates;
    }

    /**
     * Gets the last LineString and retrieves the x-y coordinates in the
     * position specified
     * @param pos The position of the coordinates to retrieve
     * @return A Point with the coordinates
     */
    public Point getLastCoordinate(final int pos) {
        final LineString l = this.lineStrings[this.lineStrings.length - 1];
        double[] coord = l.getXCoords();
        final double x = coord[coord.length - pos];

        coord = l.getYCoords();
        final double y = coord[coord.length - pos];

        return new Point(x, y);
    }

    /**
     * Gets the first LineString and retrieves the x-y coordinates in the
     * position specified
     * @param pos The position of the coordinates to retrieve
     * @return A Point with the coordinates
     */
    public Point getFirstCoordinate(final int pos) {
        final LineString l = this.lineStrings[0];
        double[] coord = l.getXCoords();
        final double x = coord[pos];

        coord = l.getYCoords();
        final double y = coord[pos];

        return new Point(x, y);
    }

    /**
     * Does nothing
     * @param coordinates
     */
    public void setCoordinates(final Point[] coordinates) {
    }
    
    public Geometry getGeometry() throws BaseException {
		throw new BaseException("No JTS Geometry");
	}
}