private Polygon editPolygon(Polygon polygon, GeometryEditorOperation operation) {
Polygon newPolygon = (Polygon) operation.edit(polygon, factory);
// create one if needed
if (newPolygon == null) newPolygon = factory.createPolygon((CoordinateSequence) null);
if (newPolygon.isEmpty()) {
// RemoveSelectedPlugIn relies on this behaviour. [Jon Aquino]
return newPolygon;
}
LinearRing shell = (LinearRing) edit(newPolygon.getExteriorRing(), operation);
if (shell == null || shell.isEmpty()) {
// RemoveSelectedPlugIn relies on this behaviour. [Jon Aquino]
return factory.createPolygon(null, null);
}
ArrayList holes = new ArrayList();
for (int i = 0; i < newPolygon.getNumInteriorRing(); i++) {
LinearRing hole = (LinearRing) edit(newPolygon.getInteriorRingN(i), operation);
if (hole == null || hole.isEmpty()) {
continue;
}
holes.add(hole);
}
return factory.createPolygon(shell, (LinearRing[]) holes.toArray(new LinearRing[] {}));
}
private int getPolygonSize(Polygon geom) {
// to hold the number of linear rings
int size = ByteBuffer.UINT_SIZE;
// for each linear ring, a UINT holds the number of points
size += geom.isEmpty() ? 0 : ByteBuffer.UINT_SIZE * (geom.getNumInteriorRing() + 1);
size += getPointByteSize(geom) * geom.getNumPoints();
return size;
}
@Override
public void visit(Polygon<P> geom) {
writeByteOrder(output);
writeTypeCodeAndSrid(geom, output);
if (geom.isEmpty()) {
output.putUInt(0);
} else {
writeNumRings(geom, output);
for (LinearRing<P> ring : geom) {
writeRing(ring);
}
}
}
private void writeNumRings(Polygon geom, ByteBuffer byteBuffer) {
byteBuffer.putUInt(geom.isEmpty() ? 0 : geom.getNumInteriorRing() + 1);
}
protected void writeNumRings(Polygon<P> geom, ByteBuffer byteBuffer) {
byteBuffer.putUInt(geom.isEmpty() ? 0 : geom.getNumInteriorRing() + 1);
}
