@Override
public void redo() {
super.redo();
final GroupTreeNode subtreeRoot = m_groupRoot.getNode(m_subtreeRootPath);
subtreeRoot.removeAllChildren();
for (int i = 0; i < m_modifiedSubtree.size(); ++i) {
subtreeRoot.add((GroupTreeNode) m_modifiedSubtree.elementAt(i));
}
if (m_revalidate) {
m_groupSelector.revalidateGroups();
}
}
@Override
public void undo() {
super.undo();
// remember modified children for redo
m_modifiedSubtree.clear();
// get node to edit
final GroupTreeNode subtreeRoot = m_groupRoot.getNode(m_subtreeRootPath);
for (int i = 0; i < subtreeRoot.getChildCount(); ++i) {
m_modifiedSubtree.add(subtreeRoot.getChildAt(i));
}
// keep subtree handle, but restore everything else from backup
subtreeRoot.removeAllChildren();
for (int i = 0; i < m_subtreeBackup.getChildCount(); ++i) {
subtreeRoot.add(((GroupTreeNode) m_subtreeBackup.getChildAt(i)).deepCopy());
}
if (m_revalidate) {
m_groupSelector.revalidateGroups();
}
}
