/**
* Check whether layer is overlapped with a higher visible layer in the layer stack of the window
*
* @param l layer to check overlapping
* @return true if overlapped, false otherwise
*/
public boolean isOverlapped(CLayer l) {
synchronized (layers) {
CLayerElement le = layers.find(l);
if (le != null) {
CLayer l2;
for (le = le.getUpper(); le != null; le = le.getUpper()) {
l2 = le.getLayer();
if (l2.isVisible() && l.intersects(l2)) {
return true;
}
}
}
}
return false;
}
