@Test
public void testSEStyleWithRelativePath() throws IOException {
StyleInfo si = getCatalog().getStyleByName("relative");
assertNotNull(si);
Style style = si.getStyle();
PolygonSymbolizer ps =
(PolygonSymbolizer) style.featureTypeStyles().get(0).rules().get(0).symbolizers().get(0);
ExternalGraphic eg = (ExternalGraphic) ps.getFill().getGraphicFill().graphicalSymbols().get(0);
URI uri = eg.getOnlineResource().getLinkage();
assertNotNull(uri);
File actual = DataUtilities.urlToFile(uri.toURL()).getCanonicalFile();
assertEquals(rockFillSymbolFile, actual);
}
static GraphicalSymbol cast(GraphicalSymbol item) {
if (item == null) {
return null;
} else if (item instanceof ExternalGraphicImpl) {
return (ExternalGraphic) item;
} else if (item instanceof org.opengis.style.ExternalGraphic) {
org.opengis.style.ExternalGraphic graphic = (org.opengis.style.ExternalGraphic) item;
ExternalGraphicImpl copy = new ExternalGraphicImpl();
copy.colorReplacements().addAll(graphic.getColorReplacements());
copy.setFormat(graphic.getFormat());
copy.setInlineContent(graphic.getInlineContent());
copy.setOnlineResource(graphic.getOnlineResource());
return copy;
}
return null;
}
/**
* Paints a GraphicLegend in the supplied graphics
*
* @param graphics The graphics in which to draw.
* @param shape The shape to draw.
* @param legend The legend to apply.
* @param symbolScale The scale of the symbol, if the legend graphic has to be rescaled
*/
public void paint(
final Graphics2D graphics,
final LiteShape2 shape,
final GraphicLegend legend,
final double symbolScale,
boolean isLabelObstacle) {
if (legend == null) {
// TODO: what's going on? Should not be reached...
throw new NullPointerException("ShapePainter has been asked to paint a null legend!!");
}
Iterator<GraphicalSymbol> symbolIter = legend.graphicalSymbols().iterator();
while (symbolIter.hasNext()) {
GraphicalSymbol symbol = symbolIter.next();
if (symbol instanceof ExternalGraphic) {
float[] coords = new float[2];
PathIterator iter = getPathIterator(shape);
iter.currentSegment(coords);
// Note: Converting to Radians here due to direct use of SLD Expressions which uses degrees
double rotation =
Math.toRadians(((Literal) legend.getRotation()).evaluate(null, Double.class));
float opacity = ((Literal) legend.getOpacity()).evaluate(null, Float.class);
AlphaComposite composite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity);
ExternalGraphic graphic = (ExternalGraphic) symbol;
while (!(iter.isDone())) {
iter.currentSegment(coords);
try {
BufferedImage image = ImageIO.read(graphic.getOnlineResource().getLinkage().toURL());
if ((symbolScale > 0.0) && (symbolScale != 1.0)) {
int w = (int) (image.getWidth() / symbolScale);
int h = (int) (image.getHeight() / symbolScale);
int imageType =
image.getType() == 0 ? BufferedImage.TYPE_4BYTE_ABGR : image.getType();
BufferedImage rescaled = new BufferedImage(w, h, imageType);
Graphics2D g = rescaled.createGraphics();
g.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(image, 0, 0, w, h, 0, 0, image.getWidth(), image.getHeight(), null);
g.dispose();
image = rescaled;
}
renderImage(
graphics,
coords[0],
coords[1],
-image.getWidth() / 2.0,
-image.getHeight() / 2.0,
// Doesn't seem to work with SVGs
// Looking at the SLDStyleFactory, they get the icon from an
// ExternalGraphicFactory.
image,
rotation,
composite,
isLabelObstacle);
} catch (IOException ex) {
Logger.getLogger(StyledShapePainter.class.getName()).log(Level.SEVERE, null, ex);
}
iter.next();
}
}
}
}