/*
* Ext GWT 2.2.4 - Ext for GWT
* Copyright(c) 2007-2010, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.extjs.gxt.ui.client.util;
import com.extjs.gxt.ui.client.data.ModelData;
import com.extjs.gxt.ui.client.data.TreeModel;
import com.extjs.gxt.ui.client.widget.ComponentHelper;
import com.extjs.gxt.ui.client.widget.tree.Tree;
import com.extjs.gxt.ui.client.widget.tree.TreeItem;
import com.extjs.gxt.ui.client.widget.treepanel.TreePanel;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
/**
* Various ways of populating trees.
*
* @see Tree
*
* @deprecated see {@link TreePanel}
*/
public class TreeBuilder {
/**
* Populates a tree from existing dom elements. The tree item text is taken
* from the 'title' attribute of the element.
*
* @param tree the tree
* @param root the root element
*/
public static void buildTree(Tree tree, Element root) {
process(tree.getRootItem(), root);
}
/**
* Populates a tree from the given model.
*
* @param tree the tree
* @param model the model
*/
public static void buildTree(Tree tree, TreeModel model) {
TreeItem root = tree.getRootItem();
for (int i = 0; i < model.getChildCount(); i++) {
ModelData m = model.getChild(i);
TreeItem item = new TreeItem();
ComponentHelper.setModel(item, m);
item.setText(m.toString());
root.add(item);
if (m instanceof TreeModel) {
process(item, (TreeModel)m);
}
}
}
private static void process(TreeItem parentItem, TreeModel model) {
for (int i = 0; i < model.getChildCount(); i++) {
ModelData m = model.getChild(i);
TreeItem item = new TreeItem();
item.setText(m.toString());
ComponentHelper.setModel(item, m);
parentItem.add(item);
if (m instanceof TreeModel) {
process(item, (TreeModel)m);
}
}
}
private static void process(TreeItem item, Element parent) {
int size = DOM.getChildCount(parent);
for (int i = 0; i < size; i++) {
Element li = DOM.getChild(parent, i);
TreeItem childItem = new TreeItem();
String id = DOM.getElementAttribute(li, "id");
if (id != null && !id.equals("")) {
childItem.setId(id);
}
childItem.setText(DOM.getElementProperty(li, "title"));
item.add(childItem);
for (int j = 0; j < DOM.getChildCount(li); j++) {
Element subList = DOM.getChild(li, j);
process(childItem, subList);
}
}
}
}