/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.wicket.markup.html.tree;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreeNode;
import org.apache.wicket.Component;
import org.apache.wicket.MarkupContainer;
import org.apache.wicket.behavior.AbstractBehavior;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.model.IModel;
/**
* A complete tree implementation where three item consists of junction link,
* icon and label.
*
* @author Matej Knopp
*/
public class Tree extends DefaultAbstractTree
{
private static final long serialVersionUID = 1L;
/**
* Tree constructor.
*
* @param id
* The component id
*/
public Tree(String id)
{
super(id);
}
/**
* Tree constructor.
*
* @param id
* The component id
* @param model
* The tree model
*/
public Tree(String id, IModel model)
{
super(id, model);
}
/**
* Tree constructor.
*
* @param id
* The component id
* @param model
* The tree model
*/
public Tree(String id, TreeModel model)
{
super(id, model);
}
/**
* Populates the tree item. It creates all necesary components for the tree
* to work properly.
*
* @param item
* @param level
*/
protected void populateTreeItem(WebMarkupContainer item, int level)
{
final TreeNode node = (TreeNode)item.getModelObject();
item.add(newIndentation(item, "indent", (TreeNode)item.getModelObject(), level));
item.add(newJunctionLink(item, "link", "image", node));
MarkupContainer nodeLink = newNodeLink(item, "nodeLink", node);
item.add(nodeLink);
nodeLink.add(newNodeIcon(nodeLink, "icon", node));
nodeLink.add(new Label("label", new AbstractReadOnlyModel()
{
private static final long serialVersionUID = 1L;
public Object getObject()
{
return renderNode(node);
}
}));
// do distinguish between selected and unselected rows we add an
// behavior
// that modifies row css class.
item.add(new AbstractBehavior()
{
private static final long serialVersionUID = 1L;
/**
* @see org.apache.wicket.behavior.AbstractBehavior#onComponentTag(org.apache.wicket.Component,
* org.apache.wicket.markup.ComponentTag)
*/
public void onComponentTag(Component component, ComponentTag tag)
{
super.onComponentTag(component, tag);
if (getTreeState().isNodeSelected(node))
{
tag.put("class", "row-selected");
}
else
{
tag.put("class", "row");
}
}
});
}
/**
* This method is called for every node to get it's string representation.
*
* @param node
* The tree node to get the string representation of
* @return The string representation
*/
protected String renderNode(TreeNode node)
{
return node.toString();
}
}