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    
020    package org.crsh.text.ui;
021    
022    import org.crsh.text.Renderable;
023    import org.crsh.text.Renderer;
024    
025    import java.util.Iterator;
026    import java.util.LinkedList;
027    
028    public class ElementRenderable extends Renderable<Element> {
029    
030      @Override
031      public Class<Element> getType() {
032        return Element.class;
033      }
034    
035      @Override
036      public Renderer renderer(Iterator<Element> stream) {
037        if (stream.hasNext()) {
038          Element element = stream.next();
039          if (stream.hasNext()) {
040            LinkedList<Renderer> renderers = new LinkedList<Renderer>();
041            renderers.add(element.renderer());
042            while (stream.hasNext()) {
043              element = stream.next();
044              renderers.add(element.renderer());
045            }
046            return Renderer.vertical(renderers);
047          } else {
048            return element.renderer();
049          }
050        } else {
051          throw new UnsupportedOperationException("todo");
052        }
053      }
054    }