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;
023import org.crsh.text.Renderer;
024
025import java.util.Iterator;
026import java.util.LinkedList;
027
028public class ElementRenderer extends Renderer<Element> {
029
030  @Override
031  public Class<Element> getType() {
032    return Element.class;
033  }
034
035  @Override
036  public LineRenderer renderer(Iterator<Element> stream) {
037    if (stream.hasNext()) {
038      Element element = stream.next();
039      if (stream.hasNext()) {
040        LinkedList<LineRenderer> renderers = new LinkedList<LineRenderer>();
041        renderers.add(element.renderer());
042        while (stream.hasNext()) {
043          element = stream.next();
044          renderers.add(element.renderer());
045        }
046        return LineRenderer.vertical(renderers);
047      } else {
048        return element.renderer();
049      }
050    } else {
051      throw new UnsupportedOperationException("todo");
052    }
053  }
054}