// manages change of attributes for highlighting, annotation bubble toggle, event firing
private void internalHighlight(SurfaceShape shape, boolean noDeselect) {
if (!highlightingEnabled) {
return;
}
String shpId = (String) shape.getValue(AVKey.HOVER_TEXT);
// if annotation visible and same shape
if (shape.equals(prevPopupShape) && shape.isHighlighted()) {
if (!noDeselect) {
// hide annotation and de-highlight
popupAnnotation.getAttributes().setVisible(false);
shape.setHighlighted(false);
// forget previous highlighted shape and fire deselection event
prevPopupShape = null;
firePropertyChange(new PropertyChangeEvent(this, PROPERTY_SELECTION, shpId, null));
}
} else {
if (showAnnotation) {
// find shape centroid
final Sector boundingSector =
Sector.boundingSector(shape.getLocations(wwd.getModel().getGlobe()));
Position centroid = new Position(boundingSector.getCentroid(), 0d);
// prepare and show annotation
popupAnnotation.setText(shpId);
popupAnnotation.setPosition(centroid);
popupAnnotation.getAttributes().setVisible(true);
}
// highlight shape
shape.setHighlighted(true);
if (prevPopupShape != null) {
// de-highlight previous shape and fire deselection event
prevPopupShape.setHighlighted(false);
firePropertyChange(
new PropertyChangeEvent(
this, PROPERTY_SELECTION, prevPopupShape.getValue(AVKey.HOVER_TEXT), shpId));
} else {
// fire event only
firePropertyChange(new PropertyChangeEvent(this, PROPERTY_SELECTION, null, shpId));
}
// remember shape
prevPopupShape = shape;
}
}
