// {{{ removeSelectedNode() method
private void removeSelectedNode() {
TreePath path = resultTree.getSelectionPath();
if (path == null) return;
MutableTreeNode value = (MutableTreeNode) path.getLastPathComponent();
if (path.getPathCount() > 1) {
// Adjust selection so that repeating some removals
// behave naturally.
TreePath parentPath = path.getParentPath();
MutableTreeNode parent = (MutableTreeNode) parentPath.getLastPathComponent();
int removingIndex = parent.getIndex(value);
int nextIndex = removingIndex + 1;
if (nextIndex < parent.getChildCount()) {
TreeNode next = parent.getChildAt(nextIndex);
resultTree.setSelectionPath(parentPath.pathByAddingChild(next));
} else {
resultTree.setSelectionPath(parentPath);
}
resultTreeModel.removeNodeFromParent(value);
}
HyperSearchOperationNode.removeNodeFromCache(value);
if (resultTreeRoot.getChildCount() == 0) {
hideDockable();
}
} // }}}
/** Removes the given node from its parent. */
public void removeNodeFromParent(MutableTreeNode node) {
MutableTreeNode parent = (MutableTreeNode) node.getParent();
// Ensure that the given node has a parent
if (parent == null) {
throw new IllegalArgumentException("node does not have a parent");
}
// Remove the node from the parent
int idx = parent.getIndex(node);
parent.remove(idx);
// Notify listeners that the node has been removed
fireTreeNodesRemoved(this, getPathToRoot(parent), new int[] {idx}, new Object[] {node});
}
/* Simple tree node factory method - set's parent and user object.
*/
private DefaultMutableTreeNode makeNode(Object userObject, MutableTreeNode parent) {
DefaultMutableTreeNode node = new DefaultMutableTreeNode(userObject);
if (parent != null) {
treeModel.insertNodeInto(node, parent, parent.getChildCount());
}
return node;
}
/** Inserts the given child node into the given parent at the given index. */
public void insertNodeInto(MutableTreeNode child, MutableTreeNode parent, int idx) {
parent.insert(child, idx);
fireTreeNodesInserted(this, getPathToRoot(parent), new int[] {idx}, new Object[] {child});
}
private static void addChildrenTo(final MutableTreeNode node, final List<TreeNode> children) {
for (final Object aChildren : children) {
final MutableTreeNode child = (MutableTreeNode) aChildren;
node.insert(child, node.getChildCount());
}
}
