/*

 * Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.sun.swingset3.demos.tree;

import java.awt.*;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.net.URL;

import javax.swing.*;

import javax.swing.tree.DefaultMutableTreeNode;

import com.sun.swingset3.DemoProperties;

import com.sun.swingset3.demos.ResourceManager;

/**

 * JTree Demo

 *

 * @version 1.13 11/17/05

 * @author Jeff Dinkins

 */

@DemoProperties(

        value = "JTree Demo",

        category = "Data",

        description = "Demonstrates JTree, a component which supports display/editing of hierarchical data",

        sourceFiles = {

            "com/sun/swingset3/demos/tree/TreeDemo.java",

            "com/sun/swingset3/demos/ResourceManager.java",

            "com/sun/swingset3/demos/tree/resources/tree.txt",

            "com/sun/swingset3/demos/tree/resources/TreeDemo.properties",

            "com/sun/swingset3/demos/tree/resources/images/TreeDemo.gif"

        }

)

public class TreeDemo extends JPanel {

    private final ResourceManager resourceManager = new ResourceManager(this.getClass());

    public static final String DEMO_TITLE = TreeDemo.class.getAnnotation(DemoProperties.class).value();

    /**

     * main method allows us to run as a standalone demo.

     *

     * @param args

     */

    public static void main(String[] args) {

        JFrame frame = new JFrame(DEMO_TITLE);

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.getContentPane().add(new TreeDemo());

        frame.setPreferredSize(new Dimension(800, 600));

        frame.pack();

        frame.setLocationRelativeTo(null);

        frame.setVisible(true);

    }

    /**

     * TreeDemo Constructor

     */

    public TreeDemo() {

        setLayout(new BorderLayout());

        add(new JScrollPane(createTree()), BorderLayout.CENTER);

    }

    private JTree createTree() {

        DefaultMutableTreeNode top = new DefaultMutableTreeNode(resourceManager.getString("TreeDemo.music"));

        DefaultMutableTreeNode catagory = null;

        DefaultMutableTreeNode artist = null;

        DefaultMutableTreeNode record = null;

        // open tree data

        URL url = getClass().getResource("resources/tree.txt");

        try {

            // convert url to buffered string

            InputStream is = url.openStream();

            InputStreamReader isr = new InputStreamReader(is, "UTF-8");

            BufferedReader reader = new BufferedReader(isr);

            // read one line at a time, put into tree

            String line = reader.readLine();

            while (line != null) {

                // System.out.println("reading in: ->" + line + "<-");

                char linetype = line.charAt(0);

                switch (linetype) {

                    case 'C':

                        catagory = new DefaultMutableTreeNode(line.substring(2));

                        top.add(catagory);

                        break;

                    case 'A':

                        if (catagory != null) {

                            catagory.add(artist = new DefaultMutableTreeNode(line.substring(2)));

                        }

                        break;

                    case 'R':

                        if (artist != null) {

                            artist.add(record = new DefaultMutableTreeNode(line.substring(2)));

                        }

                        break;

                    case 'S':

                        if (record != null) {

                            record.add(new DefaultMutableTreeNode(line.substring(2)));

                        }

                        break;

                    default:

                        break;

                }

                line = reader.readLine();

            }

        } catch (IOException ignored) {

        }

        JTree tree = new JTree(top) {

            @Override

            public Insets getInsets() {

                return new Insets(5, 5, 5, 5);

            }

        };

        tree.setEditable(true);

        return tree;

    }

}