001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.wicket.extensions.markup.html.repeater.tree.table;
018
019import org.apache.wicket.Component;
020import org.apache.wicket.behavior.Behavior;
021import org.apache.wicket.markup.ComponentTag;
022import org.apache.wicket.markup.repeater.Item;
023import org.apache.wicket.model.IModel;
024import org.apache.wicket.request.Response;
025
026/**
027 * A border for a node component which renders nested <code>DIV</code>s to simulate the structure of
028 * parental branches inside a tabular layout.
029 * 
030 * @see NodeModel
031 * @see TreeColumn#populateItem(Item, String, IModel)
032 * @author svenmeier
033 */
034public class NodeBorder extends Behavior
035{
036
037        private static final long serialVersionUID = 1L;
038
039        private boolean[] branches;
040
041        /**
042         * @param branches
043         *            branch
044         */
045        public NodeBorder(boolean[] branches)
046        {
047                this.branches = branches;
048        }
049
050        @Override
051        public void beforeRender(Component component)
052        {
053                Response response = component.getResponse();
054
055                for (int i = 0; i < branches.length; i++)
056                {
057                        if (i > 0)
058                        {
059                                response.write("<div class=\"tree-subtree\">");
060                        }
061
062                        if (branches[i])
063                        {
064                                response.write("<div class=\"tree-branch tree-branch-mid\">");
065                        }
066                        else
067                        {
068                                response.write("<div class=\"tree-branch tree-branch-last\">");
069                        }
070                }
071        }
072
073        @Override
074        public void onComponentTag(Component component, ComponentTag tag)
075        {
076                tag.append("class", "tree-node", " ");
077        }
078
079        @Override
080        public void afterRender(Component component)
081        {
082                Response response = component.getResponse();
083
084                for (int i = 0; i < branches.length; i++)
085                {
086                        if (i > 0)
087                        {
088                                response.write("</div>");
089                        }
090                        response.write("</div>");
091                }
092        }
093}