private void addTargetNodes() {
if (myTargets.length == 0) return;
myTargetNodes = new UsageTargetNode[myTargets.length];
myTargetsNode.removeAllChildren();
for (int i = 0; i < myTargets.length; i++) {
UsageTarget target = myTargets[i];
UsageTargetNode targetNode = new UsageTargetNode(target, this);
myTargetsNode.add(targetNode);
myTargetNodes[i] = targetNode;
}
myRootNode.addNode(myTargetsNode);