/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2016 Open Source Geospatial Foundation (OSGeo)
 *    (C) 2014-2016 Boundless Spatial
 *    
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 */
package org.geotools.ysld.parse;

import org.geotools.styling.*;
import org.geotools.ysld.YamlMap;
import org.geotools.ysld.YamlObject;

/**
 * Handles parsing a Ysld "polygon" symbolizer property into a {@link Symbolizer} object.
 *
 */
public class PolygonParser extends SymbolizerParser<PolygonSymbolizer> {

    public PolygonParser(Rule rule, Factory factory) {
        super(rule, factory.style.createPolygonSymbolizer(), factory);
    }

    @Override
    public void handle(YamlObject<?> obj, YamlParseContext context) {
        super.handle(obj, context);

        YamlMap map = obj.map();
        context.push(new StrokeParser(factory) {
            @Override
            protected void stroke(Stroke stroke) {
                sym.setStroke(stroke);
            }
        });
        context.push(new FillParser(factory) {
            @Override
            protected void fill(Fill fill) {
                sym.setFill(fill);
            }
        });

        if (map.has("offset")) {
            sym.setPerpendicularOffset(Util.expression(map.str("offset"), factory));
        }
        if (map.has("displacement")) {
            sym.setDisplacement(Util.displacement(map.str("displacement"), factory));
        }
    }
}