/**
* Determine and set the {@link Path} highlight attributes from the KML <i>Feature</i> fields.
*
* @param attrType the type of attributes, either {@link KMLConstants#NORMAL} or {@link
* KMLConstants#HIGHLIGHT}.
* @return the new attributes.
*/
protected ShapeAttributes makeAttributesCurrent(String attrType) {
ShapeAttributes attrs =
this.getInitialAttributes(
this.isHighlighted() ? KMLConstants.HIGHLIGHT : KMLConstants.NORMAL);
// Get the KML sub-style for Line attributes. Map them to Shape attributes.
KMLAbstractSubStyle lineSubStyle = this.parent.getSubStyle(new KMLLineStyle(null), attrType);
if (!this.isHighlighted() || KMLUtil.isHighlightStyleState(lineSubStyle)) {
KMLUtil.assembleLineAttributes(attrs, (KMLLineStyle) lineSubStyle);
if (lineSubStyle.hasField(AVKey.UNRESOLVED)) attrs.setUnresolved(true);
}
// Get the KML sub-style for interior attributes. Map them to Shape attributes.
KMLAbstractSubStyle fillSubStyle = this.parent.getSubStyle(new KMLPolyStyle(null), attrType);
if (!this.isHighlighted() || KMLUtil.isHighlightStyleState(lineSubStyle)) {
KMLUtil.assembleInteriorAttributes(attrs, (KMLPolyStyle) fillSubStyle);
if (fillSubStyle.hasField(AVKey.UNRESOLVED)) attrs.setUnresolved(true);
}
attrs.setDrawInterior(((KMLPolyStyle) fillSubStyle).isFill());
attrs.setDrawOutline(((KMLPolyStyle) fillSubStyle).isOutline());
return attrs;
}
protected ShapeAttributes getInitialAttributes(String attrType) {
ShapeAttributes attrs = new BasicShapeAttributes();
if (KMLConstants.HIGHLIGHT.equals(attrType)) {
attrs.setOutlineMaterial(Material.RED);
attrs.setInteriorMaterial(Material.PINK);
} else {
attrs.setOutlineMaterial(Material.WHITE);
attrs.setInteriorMaterial(Material.LIGHT_GRAY);
}
return attrs;
}
public void preRender(KMLTraversalContext tc, DrawContext dc) {
// If the attributes are not inline or internal then they might not be resolved until the
// external KML
// document is resolved. Therefore check to see if resolution has occurred.
if (this.isHighlighted()) {
if (!this.highlightAttributesResolved) {
ShapeAttributes a = this.getHighlightAttributes();
if (a == null || a.isUnresolved()) {
a = this.makeAttributesCurrent(KMLConstants.HIGHLIGHT);
if (a != null) {
this.setHighlightAttributes(a);
if (!a.isUnresolved()) this.highlightAttributesResolved = true;
}
}
}
} else {
if (!this.normalAttributesResolved) {
ShapeAttributes a = this.getAttributes();
if (a == null || a.isUnresolved()) {
a = this.makeAttributesCurrent(KMLConstants.NORMAL);
if (a != null) {
this.setAttributes(a);
if (!a.isUnresolved()) this.normalAttributesResolved = true;
}
}
}
}
this.preRender(dc);
}
/**
* Create a surface polygon from a KML GroundOverlay.
*
* @param tc the current {@link KMLTraversalContext}.
* @param overlay the {@link gov.nasa.worldwind.ogc.kml.KMLGroundOverlay} to render as a polygon.
* @throws NullPointerException if the geometry is null.
* @throws IllegalArgumentException if the parent placemark or the traversal context is null.
*/
public KMLSurfacePolygonImpl(KMLTraversalContext tc, KMLGroundOverlay overlay) {
if (tc == null) {
String msg = Logging.getMessage("nullValue.TraversalContextIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (overlay == null) {
String msg = Logging.getMessage("nullValue.ParentIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
this.parent = overlay;
// Positions are specified either as a kml:LatLonBox or a gx:LatLonQuad
Position.PositionList corners = overlay.getPositions();
this.setOuterBoundary(corners.list);
if (overlay.getName() != null) this.setValue(AVKey.DISPLAY_NAME, overlay.getName());
if (overlay.getDescription() != null)
this.setValue(AVKey.BALLOON_TEXT, overlay.getDescription());
if (overlay.getSnippetText() != null)
this.setValue(AVKey.SHORT_DESCRIPTION, overlay.getSnippetText());
String colorStr = overlay.getColor();
if (!WWUtil.isEmpty(colorStr)) {
Color color = WWUtil.decodeColorABGR(colorStr);
ShapeAttributes attributes = new BasicShapeAttributes();
attributes.setDrawInterior(true);
attributes.setInteriorMaterial(new Material(color));
this.setAttributes(attributes);
}
}