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/*
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/*
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 * $Id: PolygonEncoder.java 155 2010-01-13 21:00:35Z maesenka $
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 * $Id: PolygonEncoder.java 156 2010-01-28 22:59:30Z maesenka $
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 *
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 *
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 * This file is part of Hibernate Spatial, an extension to the
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 * This file is part of Hibernate Spatial, an extension to the
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 * hibernate ORM solution for geographic data.
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 * hibernate ORM solution for geographic data.
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 *
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 *
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 * Copyright © 2009 Geovise BVBA
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 * Copyright © 2009 Geovise BVBA
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 * For more information, visit: http://www.hibernatespatial.org/
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 * For more information, visit: http://www.hibernatespatial.org/
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 */
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 */
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package org.hibernatespatial.sqlserver.convertors;
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package org.hibernatespatial.sqlserver.convertors;
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import com.vividsolutions.jts.geom.Coordinate;
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import com.vividsolutions.jts.geom.Geometry;
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import com.vividsolutions.jts.geom.Geometry;
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import com.vividsolutions.jts.geom.LineString;
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import com.vividsolutions.jts.geom.LineString;
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import com.vividsolutions.jts.geom.Polygon;
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import com.vividsolutions.jts.geom.Polygon;
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import java.util.List;
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public class PolygonEncoder extends AbstractEncoder<Polygon> {
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public class PolygonEncoder extends AbstractEncoder<Polygon> {
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    private static Shape SHAPE = new Shape(-1, 0, OpenGisType.POLYGON);
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    private static Shape SHAPE = new Shape(-1, 0, OpenGisType.POLYGON);
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    public boolean accepts(Geometry geom) {
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    public boolean accepts(Geometry geom) {
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        return geom instanceof Polygon;
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        return geom instanceof Polygon;
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    }
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    }
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    @Override
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    protected void encode(Geometry geom, int parentShapeIndex, List<Coordinate> coordinates, List<Figure> figures, List<Shape> shapes) {
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    protected void encodeFigures(SqlGeometryV1 nativeGeom, Polygon geom) {
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        if (! (geom instanceof Polygon)) throw new IllegalArgumentException("Polygon geometry expected.");
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        Polygon polygon = (Polygon)geom;
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        nativeGeom.setNumberOfFigures(geom.getNumInteriorRing() + 1);
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        int figureOffset = figures.size();
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        shapes.add( new Shape(parentShapeIndex, figureOffset, OpenGisType.POLYGON));
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        int pointOffset = 0;
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        int pointOffset = coordinates.size();
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        int figure = 0;
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        addExteriorRing(polygon, coordinates, figures);
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        addFiguresForPolygon(nativeGeom, geom, pointOffset, figure);
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        addInteriorRings(polygon, coordinates, figures);
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    }
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    }
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    protected void addFiguresForPolygon(SqlGeometryV1 nativeGeom, Polygon geom, int pointOffset, int figure) {
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    private void addInteriorRings(Polygon geom, List<Coordinate> coordinates, List<Figure> figures){
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        pointOffset = addExteriorRing(nativeGeom, geom, pointOffset, figure);
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        for (int ring = 0; ring < geom.getNumInteriorRing(); ring++) {
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        for (int idx = 0; idx < geom.getNumInteriorRing(); idx++){
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            pointOffset = addInteriorRing(nativeGeom, geom, ring, pointOffset, ++figure);
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            addInteriorRing(geom.getInteriorRingN(idx), coordinates, figures);
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        }
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        }
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    }
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    }
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    private int addInteriorRing(SqlGeometryV1 nativeGeom, Polygon geom, int ring, int pointOffset, int numFigure) {
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    private void addInteriorRing(LineString ring, List<Coordinate> coordinates, List<Figure> figures) {
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        LineString ls = geom.getInteriorRingN(ring);
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        int pointOffset = coordinates.size();
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        addPoints(ring, coordinates);
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        Figure figure = new Figure(FigureAttribute.InteriorRing, pointOffset);
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        Figure figure = new Figure(FigureAttribute.InteriorRing, pointOffset);
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        nativeGeom.setFigure(numFigure, figure);
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        pointOffset += ls.getNumPoints();
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        return pointOffset;
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        figures.add(figure);
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    }
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    }
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    private void addPoints(LineString ring, List<Coordinate> coordinates) {
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        for (Coordinate c : ring.getCoordinates()){
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            coordinates.add(c);
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        }
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    }
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    private int addExteriorRing(SqlGeometryV1 nativeGeom, Polygon geom, int offset, int numFigure) {
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    private void addExteriorRing(Polygon geom, List<Coordinate> coordinates, List<Figure> figures) {
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        LineString shell = geom.getExteriorRing();
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        LineString shell = geom.getExteriorRing();
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        int offset = coordinates.size();
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        addPoints(shell, coordinates);
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        Figure exterior = new Figure(FigureAttribute.ExteriorRing, offset);
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        Figure exterior = new Figure(FigureAttribute.ExteriorRing, offset);
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        nativeGeom.setFigure(numFigure, exterior);
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        offset += shell.getNumPoints();
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        return offset;
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        figures.add(exterior);
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    }
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    }
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    protected void encodeShapes(SqlGeometryV1 nativeGeom, Polygon geom) {
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        nativeGeom.setNumberOfShapes(1);
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        nativeGeom.setShape(0, SHAPE);
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    }
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}
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}