Example usage for javax.swing.tree MutableTreeNode getIndex

Introduction

In this page you can find the example usage for javax.swing.tree MutableTreeNode getIndex.

Prototype

int getIndex(TreeNode node);

Source Link

Document

Returns the index of node in the receivers children.

Usage

From source file:MainClass.java

public static void main(String[] args) {
    // create a hierarchy of nodes
    MutableTreeNode root = new DefaultMutableTreeNode("A");
    MutableTreeNode bNode = new DefaultMutableTreeNode("B");
    MutableTreeNode cNode = new DefaultMutableTreeNode("C");
    root.insert(bNode, 0);//from   www  .  j  a  v a  2s. c om
    root.insert(cNode, 1);
    bNode.insert(new DefaultMutableTreeNode("1"), 0);
    bNode.insert(new DefaultMutableTreeNode("2"), 1);
    cNode.insert(new DefaultMutableTreeNode("1"), 0);
    cNode.insert(new DefaultMutableTreeNode("2"), 1);

    final DefaultTreeModel model = new DefaultTreeModel(root);
    final JTree tree = new JTree(model);

    final JTextField nameField = new JTextField("Z");
    final JButton button = new JButton("Add");
    button.setEnabled(false);
    button.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            TreePath tp = tree.getSelectionPath();
            MutableTreeNode insertNode = (MutableTreeNode) tp.getLastPathComponent();
            int insertIndex = 0;
            if (insertNode.getParent() != null) {
                MutableTreeNode parent = (MutableTreeNode) insertNode.getParent();
                insertIndex = parent.getIndex(insertNode) + 1;
                insertNode = parent;
            }
            MutableTreeNode node = new DefaultMutableTreeNode(nameField.getText());
            model.insertNodeInto(node, insertNode, insertIndex);
        }
    });
    JPanel addPanel = new JPanel(new GridLayout(2, 1));
    addPanel.add(nameField);
    addPanel.add(button);

    tree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent e) {
            TreePath tp = e.getNewLeadSelectionPath();
            button.setEnabled(tp != null);
        }
    });

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200, 200);
    frame.getContentPane().add(new JScrollPane(tree));
    frame.getContentPane().add(addPanel, BorderLayout.SOUTH);
    frame.setVisible(true);
}

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From source file:MainClass.java

public static void main(String[] args) {
    MutableTreeNode root = new DefaultMutableTreeNode("A");
    MutableTreeNode beams = new DefaultMutableTreeNode("B");
    MutableTreeNode gears = new DefaultMutableTreeNode("C");
    root.insert(beams, 0);/*from  ww w . ja v  a  2  s . c  o  m*/
    root.insert(gears, 1);
    beams.insert(new DefaultMutableTreeNode("4 "), 0);
    beams.insert(new DefaultMutableTreeNode("6 "), 1);
    beams.insert(new DefaultMutableTreeNode("8 "), 2);
    beams.insert(new DefaultMutableTreeNode("12 "), 3);
    gears.insert(new DefaultMutableTreeNode("8t"), 0);
    gears.insert(new DefaultMutableTreeNode("24t"), 1);
    gears.insert(new DefaultMutableTreeNode("40t"), 2);

    final DefaultTreeModel model = new DefaultTreeModel(root);
    final JTree tree = new JTree(model);

    final JTextField nameField = new JTextField("16t");
    final JButton button = new JButton("Add a part");
    button.setEnabled(false);
    button.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            TreePath tp = tree.getSelectionPath();
            MutableTreeNode insertNode = (MutableTreeNode) tp.getLastPathComponent();
            int insertIndex = 0;
            if (insertNode.getParent() != null) {
                MutableTreeNode parent = (MutableTreeNode) insertNode.getParent();
                insertIndex = parent.getIndex(insertNode) + 1;
                insertNode = parent;
            }
            MutableTreeNode node = new DefaultMutableTreeNode(nameField.getText());
            model.insertNodeInto(node, insertNode, insertIndex);
        }
    });
    JPanel addPanel = new JPanel(new GridLayout(2, 1));
    addPanel.add(nameField);
    addPanel.add(button);

    tree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent e) {
            TreePath tp = e.getNewLeadSelectionPath();
            button.setEnabled(tp != null);
        }
    });

    JFrame frame = new JFrame();

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200, 200);
    frame.getContentPane().add(new JScrollPane(tree));
    frame.getContentPane().add(addPanel, BorderLayout.SOUTH);
    frame.setVisible(true);
}

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