001/*
002 * Copyright (C) 2012 eXo Platform SAS.
003 *
004 * This is free software; you can redistribute it and/or modify it
005 * under the terms of the GNU Lesser General Public License as
006 * published by the Free Software Foundation; either version 2.1 of
007 * the License, or (at your option) any later version.
008 *
009 * This software is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * You should have received a copy of the GNU Lesser General Public
015 * License along with this software; if not, write to the Free
016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018 */
019
020package org.crsh.text.ui;
021
022import org.crsh.text.LineRenderer;
023
024import java.util.ArrayList;
025import java.util.List;
026
027public class TreeElement extends Element {
028
029  /** An optional value element. */
030  Element value;
031
032  /** . */
033  final List<Element> children = new ArrayList<Element>();
034
035  public TreeElement() {
036    this((Element)null);
037  }
038
039  public TreeElement(Element value) {
040    this.value = value;
041  }
042
043  public TreeElement(String value) {
044    this.value = new LabelElement(value);
045  }
046
047  public TreeElement addChild(Element child) {
048    children.add(child);
049    return this;
050  }
051
052  public int getSize() {
053    return children.size();
054  }
055
056  public Element getValue() {
057    return value;
058  }
059
060  public Element getNode(int index) {
061    return children.get(index);
062  }
063
064  @Override
065  public LineRenderer renderer() {
066    return new TreeLineRenderer(this);
067  }
068}