private void enableTreeNode(TreeNode treeNode) {
if (!treeNode.isEnabled()) {
treeNode.setEnabled(true);
// recursevely call the enable on parent nodes, until the whole path is enabled
if (treeNode.getParent() != null) {
enableTreeNode(treeNode.getParent());
}
}
}
private void removeParentNode(TreeNode parentNode) {
TreeNode superParentNode = parentNode.getParent();
if (superParentNode != null) {
superParentNode.removeChild(parentNode);
if (!superParentNode.hasChildNodes()) removeParentNode(superParentNode);
}
}
private void disableTreeNode(TreeNode treeNode) {
if (treeNode.isEnabled()) {
boolean isAnyChildEnabled = false;
Collection<TreeNode> childNodes = treeNode.getChildNodes();
if (childNodes != null) {
for (TreeNode childNode : childNodes) {
if (childNode.isEnabled()) {
isAnyChildEnabled = true;
break;
}
}
}
// if none of the childs are enabled, disable the parent
if (!isAnyChildEnabled) {
treeNode.setEnabled(false);
// recursevely call the disable on parent nodes
if (treeNode.getParent() != null) {
disableTreeNode(treeNode.getParent());
}
}
}
}