/**

  * This file is part of the equanda project.

  *

  * The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at http://www.mozilla.org/MPL/

  *

  * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF

  * ANY KIND, either express or implied. See the License for the specific language governing rights and

  * limitations under the License.

  *

  * Alternatively, the contents of this file may be used under the terms of

  * either the GNU General Public License Version 2 or later (the "GPL"), or

  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),

  * in which case the provisions of the GPL or the LGPL are applicable instead

  * of those above. If you wish to allow use of your version of this file only

  * under the terms of either the GPL or the LGPL, and not to allow others to

  * use your version of this file under the terms of the MPL, indicate your

  * decision by deleting the provisions above and replace them with the notice

  * and other provisions required by the GPL or the LGPL. If you do not delete

  * the provisions above, a recipient may use your version of this file under

  * the terms of any one of the MPL, the GPL or the LGPL.

  */

 package org.equanda.tapestry5.components;

 import org.apache.tapestry5.Block;

 import org.apache.tapestry5.annotations.IncludeJavaScriptLibrary;

 import org.apache.tapestry5.annotations.IncludeStylesheet;

 import org.apache.tapestry5.annotations.Parameter;

 import org.apache.tapestry5.annotations.SupportsInformalParameters;

 import org.equanda.tapestry5.data.FlattenedTree;

 import org.equanda.tapestry5.data.Tree;

 import java.util.ArrayList;

 import java.util.List;

 /**

  * TreeTable is a tapestry 5 component class. It is based upon <a href="http://sstree.tigris.org/">sstree</a>

  *

  * @author Geert Mergan

  * @author <a href="mailto:joachim@progs.be">Joachim Van der Auwera</a>

  */

 @SupportsInformalParameters

 @IncludeStylesheet( "classpath:/org/equanda/tapestry5/resources/treetable.css" )

 @IncludeJavaScriptLibrary( "classpath:/org/equanda/tapestry5/resources/treetable.js" )

 public class TreeTable

 {

     /** Defines the source Tree to walk over. */

     @Parameter( required = true )

     private List<Tree> tree;

     @Parameter( required = true )

     private Tree value;

     @Parameter( required = true )

     private Block content;

     private List<FlattenedTree> flattenedTreeList;

     /** Current node of the tree. */

     private FlattenedTree flatValue;

     public Block getContent()

     {

         return content;

     }

     public void setContent( Block content )

     {

         this.content = content;

     }

     public FlattenedTree getFlatValue()

     {

         return flatValue;

     }

     public void setFlatValue( FlattenedTree flatValue )

     {

         this.flatValue = flatValue;

         value = flatValue.getTree();

     }

     public List<FlattenedTree> getList()

     {

         if ( null == flattenedTreeList )

         {

             flattenedTreeList = new ArrayList<FlattenedTree>();

             if ( null != tree )

             {

                 int i = 0;

                 for ( Tree node : tree )

                 {

                     buildSourceList( flattenedTreeList, node, 0, Integer.toString( i ) );

                     i++;

                 }

             }

         }

         return flattenedTreeList;

     }

     public void setList( List<FlattenedTree> source )

     {

         this.flattenedTreeList = source;

     }

     private void buildSourceList( List<FlattenedTree> list, Tree treeNode, int depth, String dotId )

     {

         list.add( new FlattenedTree( treeNode, depth, dotId ) );

         List<Tree> children = treeNode.getChildren();

         if ( children != null )

         {

             int i = 0;

             for ( Tree node : children )

             {

                 // TODO check if stopping recursion works.. we probably have to forsee equals and hashCode method on FlattenedTree

                 if ( !list.contains( node ) )

                 {

                     buildSourceList( list, node, depth + 1, dotId + "-" + i );

                     i++;

                 }

             }

         }

     }

 }