/**
* Create a collection of layer lists and their included layers described by an array of XML
* layer-list description elements.
*
* <p>Any exceptions occurring during creation of the layer lists or their included layers are
* logged and not re-thrown. The layers associated with the exceptions are not included in the
* returned layer list.
*
* @param elements the XML elements describing the layer lists to create.
* @param params any parameters to apply when creating the included layers.
* @return an array containing the specified layer lists.
*/
protected LayerList[] createLayerLists(Element[] elements, AVList params) {
ArrayList<LayerList> layerLists = new ArrayList<LayerList>();
for (Element element : elements) {
try {
String href = WWXML.getText(element, "@href");
if (href != null && href.length() > 0) {
Object o = this.createFromConfigSource(href, params);
if (o == null) continue;
if (o instanceof Layer) {
LayerList ll = new LayerList();
ll.add((Layer) o);
o = ll;
}
if (o instanceof LayerList) {
LayerList list = (LayerList) o;
if (list != null && list.size() > 0) layerLists.add(list);
} else if (o instanceof LayerList[]) {
LayerList[] lists = (LayerList[]) o;
if (lists != null && lists.length > 0) layerLists.addAll(Arrays.asList(lists));
} else {
String msg =
Logging.getMessage("LayerFactory.UnexpectedTypeForLayer", o.getClass().getName());
Logging.logger().log(java.util.logging.Level.WARNING, msg);
}
continue;
}
String title = WWXML.getText(element, "@title");
Element[] children = WWXML.getElements(element, "./Layer", null);
if (children != null && children.length > 0) {
LayerList list = this.createLayerList(children, params);
if (list != null && list.size() > 0) {
layerLists.add(list);
if (title != null && title.length() > 0) list.setValue(AVKey.DISPLAY_NAME, title);
}
}
} catch (Exception e) {
Logging.logger().log(java.util.logging.Level.WARNING, e.getMessage(), e);
// keep going to create other layers
}
}
return layerLists.toArray(new LayerList[layerLists.size()]);
}
public List<NavigationTile> navTilesVisible(
DrawContext dc, double minDistSquared, double maxDistSquared) {
ArrayList<NavigationTile> navList = new ArrayList<NavigationTile>();
if (this.isNavSectorVisible(dc, minDistSquared, maxDistSquared)) {
if (this.level > 0 && !this.hasSubTiles()) this.buildSubNavTiles();
if (this.hasSubTiles()) {
for (NavigationTile nav : subNavTiles) {
navList.addAll(nav.navTilesVisible(dc, minDistSquared, maxDistSquared));
}
} else // at bottom level navigation tile
{
navList.add(this);
}
}
return navList;
}
@Override
protected void doRender(DrawContext dc) {
this.referencePoint = this.computeReferencePoint(dc);
int serviceCount = this.placeNameServiceSet.getServiceCount();
for (int i = 0; i < serviceCount; i++) {
PlaceNameService placeNameService = this.placeNameServiceSet.getService(i);
if (!isServiceVisible(dc, placeNameService)) continue;
double minDistSquared =
placeNameService.getMinDisplayDistance() * placeNameService.getMinDisplayDistance();
double maxDistSquared =
placeNameService.getMaxDisplayDistance() * placeNameService.getMaxDisplayDistance();
if (isSectorVisible(
dc, placeNameService.getMaskingSector(), minDistSquared, maxDistSquared)) {
ArrayList<Tile> baseTiles = new ArrayList<Tile>();
NavigationTile navTile = this.navTiles.get(i);
// drill down into tiles to find bottom level navTiles visible
List<NavigationTile> list = navTile.navTilesVisible(dc, minDistSquared, maxDistSquared);
for (NavigationTile nt : list) {
baseTiles.addAll(nt.getTiles());
}
for (Tile tile : baseTiles) {
try {
drawOrRequestTile(dc, tile, minDistSquared, maxDistSquared);
} catch (Exception e) {
Logging.logger()
.log(
Level.FINE,
Logging.getMessage("layers.PlaceNameLayer.ExceptionRenderingTile"),
e);
}
}
}
}
this.sendRequests();
this.requestQ.clear();
}