Example usage for javax.swing.tree DefaultTreeModel addTreeModelListener

Introduction

In this page you can find the example usage for javax.swing.tree DefaultTreeModel addTreeModelListener.

Prototype

public void addTreeModelListener(TreeModelListener l) 

Source Link

Document

Adds a listener for the TreeModelEvent posted after the tree changes.

Usage

From source file:MyTreeModelListener.java

public static void main(String args[]) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
    JTree tree = new JTree(root);

    DefaultTreeModel treeModel = new DefaultTreeModel(root);
    treeModel.addTreeModelListener(new MyTreeModelListener());

    treeModel.insertNodeInto(new DefaultMutableTreeNode("A"), root, 0);

    root.add(new DefaultMutableTreeNode("B"));
    root.add(new DefaultMutableTreeNode("C"));

    JScrollPane scrollPane = new JScrollPane(tree);
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);/*from w ww .ja v a  2s. co m*/
    frame.setVisible(true);

}

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From source file:org.languagetool.gui.ConfigurationDialog.java

@NotNull
private DefaultTreeModel getTreeModel(DefaultMutableTreeNode rootNode) {
    DefaultTreeModel treeModel = new DefaultTreeModel(rootNode);
    treeModel.addTreeModelListener(new TreeModelListener() {
        @Override/* w  ww.j  a  va  2 s .  c  o  m*/
        public void treeNodesChanged(TreeModelEvent e) {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) e.getTreePath().getLastPathComponent();
            int index = e.getChildIndices()[0];
            node = (DefaultMutableTreeNode) node.getChildAt(index);
            if (node instanceof RuleNode) {
                RuleNode o = (RuleNode) node;
                if (o.getRule().isDefaultOff() || o.getRule().getCategory().isDefaultOff()) {
                    if (o.isEnabled()) {
                        config.getEnabledRuleIds().add(o.getRule().getId());
                        config.getDisabledRuleIds().remove(o.getRule().getId());
                    } else {
                        config.getEnabledRuleIds().remove(o.getRule().getId());
                        config.getDisabledRuleIds().add(o.getRule().getId());
                    }
                } else {
                    if (o.isEnabled()) {
                        config.getDisabledRuleIds().remove(o.getRule().getId());
                    } else {
                        config.getDisabledRuleIds().add(o.getRule().getId());
                    }
                }
            }
            if (node instanceof CategoryNode) {
                CategoryNode o = (CategoryNode) node;
                if (o.getCategory().isDefaultOff()) {
                    if (o.isEnabled()) {
                        config.getDisabledCategoryNames().remove(o.getCategory().getName());
                        config.getEnabledCategoryNames().add(o.getCategory().getName());
                    } else {
                        config.getDisabledCategoryNames().add(o.getCategory().getName());
                        config.getEnabledCategoryNames().remove(o.getCategory().getName());
                    }
                } else {
                    if (o.isEnabled()) {
                        config.getDisabledCategoryNames().remove(o.getCategory().getName());
                    } else {
                        config.getDisabledCategoryNames().add(o.getCategory().getName());
                    }
                }
            }
        }

        @Override
        public void treeNodesInserted(TreeModelEvent e) {
        }

        @Override
        public void treeNodesRemoved(TreeModelEvent e) {
        }

        @Override
        public void treeStructureChanged(TreeModelEvent e) {
        }
    });
    return treeModel;
}

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