/*
* 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;
import org.geomajas.configuration.FeatureStyleInfo;
import org.geomajas.configuration.VectorLayerInfo;
import org.geomajas.internal.rendering.writer.GraphicsWriter;
import org.geomajas.layer.LayerType;
import org.geomajas.layer.feature.InternalFeature;
import org.geomajas.layer.tile.InternalTile;
import org.geomajas.rendering.GraphicsDocument;
import org.geomajas.rendering.RenderException;
/**
* This class writes the features of a feature tile as styled VML. Note that there is no surrounding group element for
* the following reasons: - the result can be immediately assigned to innerHTML in IE - the position of the tile in
* screen space is not known yet - the result is always cacheable.
*
* @author Jan De Moerloose
*/
public class VmlTileWriter implements GraphicsWriter {
private int coordWidth;
private int coordHeight;
public VmlTileWriter(int coordWidth, int coordHeight) {
this.coordWidth = coordWidth;
this.coordHeight = coordHeight;
}
public void writeObject(Object object, GraphicsDocument document, boolean asChild) throws RenderException {
InternalTile tile = (InternalTile) object;
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("vml:group", false);
document.writeAttribute("coordsize", coordWidth + "," + coordHeight);
document.writeAttribute("style", "WIDTH: " + coordWidth + "; HEIGHT: " + coordHeight);
} else {
document.writeElement("vml:group", true);
document.writeAttribute("coordsize", coordWidth + "," + coordHeight);
document.writeAttribute("style", "WIDTH: " + coordWidth + "; HEIGHT: " + coordHeight);
}
style = nextStyle;
VectorLayerInfo layerInfo = feature.getLayer().getLayerInfo();
if (layerInfo.getLayerType() != LayerType.POINT &&
layerInfo.getLayerType() != LayerType.MULTIPOINT) {
// the shapetype
document.writeElement("vml:shapetype", true);
document.writeAttribute("id", featureStyle.getStyleId());
document.writeAttribute("style", "WIDTH: 100%; HEIGHT: 100%");
document.writeAttribute("style", "VISIBILITY: hidden");
document.writeAttribute("coordsize", coordWidth + "," + coordHeight);
document.writeAttribute("fillcolor", featureStyle.getFillColor());
document.writeAttribute("strokecolor", featureStyle.getStrokeColor());
document.writeAttribute("strokeweight", featureStyle.getStrokeWidth() + "px");
// Tile-fill element:
document.writeElement("vml:fill", true);
document.writeAttribute("opacity", Float.toString(featureStyle.getFillOpacity()));
document.closeElement();
// Tile-stroke element:
document.writeElement("vml:stroke", true);
document.writeAttribute("opacity", Float.toString(featureStyle.getStrokeOpacity()));
document.closeElement();
// up to style group
document.closeElement();
}
// now the feature
document.writeObject(feature, true);
} else {
document.writeObject(feature, false);
}
}
}
if (style != null) {
document.closeElement();
}
document.closeElement();
}
}