Java JTree Node getNodeAt(final JTree tree, final int x, final int y)

Description

Finds the node at a given mouse cursor position.

License

Open Source License

Parameter

Parameter	Description
tree	The tree where the node is located.
x	The x coordinate of the mouse position.
y	The y coordinate of the mouse position.

Return

The node at the given cursor position or null if there is no node at that position.

Declaration

public static Object getNodeAt(final JTree tree, final int x, final int y) 

Method Source Code

//package com.java2s;
/*//from  w  w w .j a va2  s . co m
Copyright 2015 Google Inc. All Rights Reserved.
    
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    
http://www.apache.org/licenses/LICENSE-2.0
    
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import javax.swing.JTree;

import javax.swing.tree.TreePath;

public class Main {
    /**
     * Finds the node at a given mouse cursor position.
     * 
     * @param tree The tree where the node is located.
     * @param x The x coordinate of the mouse position.
     * @param y The y coordinate of the mouse position.
     * 
     * @return The node at the given cursor position or null if there is no node at that position.
     */
    public static Object getNodeAt(final JTree tree, final int x, final int y) {
        final TreePath selPath = tree.getPathForLocation(x, y);
        return selPath != null ? selPath.getLastPathComponent() : null;
    }
}

Related

1. getAllChildCount(TreeNode node)
2. getAllTreeNodes(TreeModel model, int startLevel, Class clazz, DefaultMutableTreeNode root)
3. getAllUserObject(TreeNode node, Set userObjectSet)
4. getLevel(TreeNode treeNode)
5. getMutableTreeNodes(TreeNode[] path)
6. getNodeForEvent(JTree targetTree, DropTargetDragEvent dtde)
7. getPathStringForNode(DefaultMutableTreeNode node)
8. getSubTree(TreeNode root, String name)
9. hasOnlyLeafs(JTree tree, Object node)