/*
* 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.svg;
import org.geomajas.configuration.FeatureStyleInfo;
import org.geomajas.internal.rendering.writer.GraphicsWriter;
import org.geomajas.layer.feature.InternalFeature;
import org.geomajas.layer.tile.InternalTile;
import org.geomajas.rendering.GraphicsDocument;
import org.geomajas.rendering.RenderException;
/**
* Writer for tiles.
*
* @author Jan De Moerloose
* @author Pieter De Graef
*/
public class SvgTileWriter implements GraphicsWriter {
public void writeObject(Object object, GraphicsDocument document, boolean asChild) throws RenderException {
InternalTile tile = (InternalTile) object;
document.writeElement("g", true);
document.writeId("features." + tile.getCode().toString());
String style = null;
for (InternalFeature feature : tile.getFeatures()) {
FeatureStyleInfo featureStyle = feature.getStyleInfo();
if (null != featureStyle) {
String nextStyle = Integer.toString(featureStyle.getIndex());
if (style == null || !style.equals(nextStyle)) {
if (style != null) {
document.closeElement();
document.writeElement("g", false);
} else {
document.writeElement("g", true);
}
style = nextStyle;
document.writeAttribute("style", parseStyle(featureStyle));
document.writeId(nextStyle);
document.writeObject(feature, true);
} else {
document.writeObject(feature, false);
}
}
}
if (style != null) {
document.closeElement();
}
document.closeElement();
}
private String parseStyle(FeatureStyleInfo style) {
if (!(style.getIndex() == FeatureStyleInfo.DEFAULT_STYLE_INDEX)) {
StringBuilder css = new StringBuilder();
addToCss(css, "fill", style.getFillColor());
addToCss(css, "fill-opacity", style.getFillOpacity());
addToCss(css, "stroke", style.getStrokeColor());
addToCss(css, "stroke-opacity", style.getStrokeOpacity());
addToCss(css, "stroke-width", style.getStrokeWidth() + "px");
addToCss(css, "stroke-dasharray", style.getDashArray());
return css.toString();
}
return "display:none;";
}
private void addToCss(StringBuilder css, String name, float value) {
addToCss(css, name, Float.toString(value));
}
private void addToCss(StringBuilder css, String name, String value) {
if (value != null && value.length() > 0) {
css.append(name);
css.append(":");
css.append(value);
css.append(";");
}
}
}