/*
* This is part of Geomajas, a GIS framework, http://www.geomajas.org/.
*
* Copyright 2008-2011 Geosparc nv, http://www.geosparc.com/, Belgium.
*
* The program is available in open source according to the GNU Affero
* General Public License. All contributions in this program are covered
* by the Geomajas Contributors License Agreement. For full licensing
* details, see LICENSE.txt in the project root.
*/
package org.geomajas.internal.rendering.writer.vml.geometry;
import org.geomajas.internal.rendering.writer.GraphicsWriter;
import org.geomajas.rendering.GraphicsDocument;
import org.geomajas.rendering.RenderException;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.Polygon;
/**
* <p>
* VML writer for <code>Polygon</code> objects.
* </p>
*
* @author Pieter De Graef
* @author Jan De Moerloose
*/
public class PolygonWriter implements GraphicsWriter {
/**
* Writes the object to the specified document, optionally creating a child
* element. The object in this case should be a polygon.
*
* @param o the object (of type Polygon).
* @param document the document to write to.
* @param asChild create child element if true.
* @throws RenderException
*/
public void writeObject(Object o, GraphicsDocument document, boolean asChild) throws RenderException {
document.writeElement("vml:shape", asChild);
document.writeAttribute("fill-rule", "evenodd");
document.writeAttributeStart("path");
Polygon poly = (Polygon) o;
LineString shell = poly.getExteriorRing();
int nHoles = poly.getNumInteriorRing();
document.writeClosedPathContent(shell.getCoordinates());
for (int j = 0; j < nHoles; j++) {
document.writeClosedPathContent(poly.getInteriorRingN(j).getCoordinates());
}
document.writeAttributeEnd();
}
}