@Override
public Feature decorate(Feature feature, KmlEncodingContext context) {
Placemark pm = (Placemark) feature;
// while it's possible to have more than one style object, GE will only paint
// the first one
Style style = pm.createAndAddStyle();
List<Symbolizer> symbolizers = context.getCurrentSymbolizers();
SimpleFeature sf = context.getCurrentFeature();
if (symbolizers.size() > 0 && sf.getDefaultGeometry() != null) {
// sort by point, text, line and polygon
Map<Class, List<Symbolizer>> classified = classifySymbolizers(symbolizers);
// if no point symbolizers, create a default one
List<Symbolizer> points = classified.get(PointSymbolizer.class);
if (points.size() == 0) {
if (context.isDescriptionEnabled()) {
setDefaultIconStyle(style, sf, context);
}
} else {
org.geotools.styling.Style wholeStyle = context.getCurrentLayer().getStyle();
IconProperties properties = IconPropertyExtractor.extractProperties(wholeStyle, sf);
setIconStyle(style, wholeStyle, properties, context);
}
// handle label styles
List<Symbolizer> texts = classified.get(TextSymbolizer.class);
if (texts.size() == 0) {
if (context.isDescriptionEnabled()) {
setDefaultLabelStyle(style);
}
} else {
// the XML schema allows only one text style, follow painter's model
// and set the last one
TextSymbolizer lastTextSymbolizer = (TextSymbolizer) texts.get(texts.size() - 1);
setLabelStyle(style, sf, lastTextSymbolizer);
}
// handle line styles
List<Symbolizer> lines = classified.get(LineSymbolizer.class);
// the XML schema allows only one line style, follow painter's model
// and set the last one
if (lines.size() > 0) {
LineSymbolizer lastLineSymbolizer = (LineSymbolizer) lines.get(lines.size() - 1);
setLineStyle(style, sf, lastLineSymbolizer.getStroke());
}
// handle polygon styles
boolean forceOutiline = lines.size() == 0;
List<Symbolizer> polygons = classified.get(PolygonSymbolizer.class);
if (polygons.size() > 0) {
// the XML schema allows only one polygon style, follow painter's model
// and set the last one
PolygonSymbolizer lastPolygonSymbolizer =
(PolygonSymbolizer) polygons.get(polygons.size() - 1);
setPolygonStyle(style, sf, lastPolygonSymbolizer, forceOutiline);
}
}
return feature;
}
@Override
public KmlDecorator getDecorator(
Class<? extends Feature> featureClass, KmlEncodingContext context) {
if (Placemark.class.isAssignableFrom(featureClass) && context.isDescriptionEnabled()) {
return new PlacemarkNameDecorator();
} else {
return null;
}
}
protected void setDefaultIconStyle(
Style style, SimpleFeature feature, KmlEncodingContext context) {
// figure out if line or polygon
boolean line =
feature.getDefaultGeometry() != null
&& (feature.getDefaultGeometry() instanceof LineString
|| feature.getDefaultGeometry() instanceof MultiLineString);
boolean poly =
feature.getDefaultGeometry() != null
&& (feature.getDefaultGeometry() instanceof Polygon
|| feature.getDefaultGeometry() instanceof MultiPolygon);
// Final pre-flight check
if (!line && !poly) {
LOGGER.log(
Level.FINER,
"Unexpectedly entered encodeDefaultIconStyle() "
+ "with something that does not have a multipoint geometry.");
return;
}
IconStyle is = style.createAndSetIconStyle();
// make transparent if they ask for attributes, since we'll have a label
if (context.isDescriptionEnabled()) {
is.setColor("00ffffff");
}
// if line or polygon scale the label
if (line || poly) {
is.setScale(0.4);
}
String imageURL =
"http://icons.opengeo.org/markers/icon-" + (poly ? "poly.1" : "line.1") + ".png";
Icon icon = is.createAndSetIcon();
icon.setHref(imageURL);
icon.setViewBoundScale(1);
}
