/***********************************************************************
* File			: Service.cs
* Purpose		: Process Service data
*
* Author(s)		: Christopher Thilges
* Last Update	: 04/01/2006
*
* Change Log	:
* Version	Date		Name			Description
*
* Warning: xml file must have <?xml version="1.0" encoding="utf-8" ?>, not the iso encoding version: ISO8859-1. 
*   The entire xml file besides the encoding must be enclosed within a braces: <></> 
* Helpful Article by James Divine:  
* http://www.c-sharpcorner.com/UploadFile/jdivine/XMLTreeView11282005035636AM/XMLTreeView.aspx?ArticleID=9b2fee3a-55b9-4abb-b74a-02dc17e229ba
* 
* 0.1		04/01/06	Chris Thilges	- fixed Xml schema
*
* 0.0		03/22/06	Chris Thilges	- wrote class
*
**********************************************************************/

using System;
using System.Drawing;
using System.Collections;
using System.Windows.Forms;
using System.Data;
using System.Xml;
using System.Text;
using System.ComponentModel;
using System.Threading;

namespace BoilerMap_Cellphone.UI.Forms
{    
    public class Service : System.Windows.Forms.Form, IDisposable
    {
        private XmlDocument serviceXml;
        public event finished done;
        public delegate void finished();
        
        private System.Windows.Forms.TreeView tvTreeView;
        private System.Windows.Forms.MainMenu mnuMainMenu;
        private TreeNode branch;
 
        public Service(XmlDocument serviceXml)
        {            
            this.serviceXml = serviceXml;
            branch = null;
            InitializeComponent();
        }

        private void updateTreeView()
        {
           XmlDocument tmpxmldoc = serviceXml;
           FillTree(tmpxmldoc.DocumentElement, tvTreeView.Nodes);
        }


        private void FillTree(XmlNode node, TreeNodeCollection parentnode)
        {
            // End recursion if the node is a text type
            if (node == null) // || node.NodeType == XmlNodeType.Text || node.NodeType == XmlNodeType.CDATA
                return;

            TreeNodeCollection tmptreenodecollection = AddNodeToTree(node, parentnode);

            // Add all the children of the current node to the treeview
            foreach (XmlNode tmpchildnode in node.ChildNodes)
            {
                FillTree(tmpchildnode, tmptreenodecollection);
            }
        }


        private TreeNodeCollection AddNodeToTree(XmlNode node, TreeNodeCollection parentnode)
        {
            TreeNode newchildnode = CreateTreeNodeFromXmlNode(node);

            // if nothing to add, return the parent item
            if (newchildnode == null) return parentnode;

            // add the newly created tree node to its parent
            if (parentnode != null) parentnode.Add(newchildnode);

            return newchildnode.Nodes;
        }

        private TreeNode CreateTreeNodeFromXmlNode(XmlNode node)
        {         
            TreeNode tmptreenode = null;
            
            //Behavior modifications from Article implementation follow to improve user experience.
            if ((node.HasChildNodes) && (node.FirstChild.Value != null))
            {
                //tmptreenode = new TreeNode(node.Name);
                foreach (XmlNode cNode in node.ChildNodes)
                {
                    if (cNode.Value != null)
                    {
                        TreeNode tmptreenode2 = new TreeNode(cNode.Value);
                        if (branch == null)
                        {
                            tvTreeView.Nodes.Add(tmptreenode2);
                        }
                        else
                        {
                            branch.Nodes.Add(tmptreenode2);
                        }
                    }
                }
            }
            else if (node.NodeType != XmlNodeType.CDATA)
            {
                if (node.Attributes != null && node.Attributes["value"] != null && node.Attributes["value"].Value != null)
                {
                    tmptreenode = new TreeNode(node.Attributes["value"].Value);
                    branch = tmptreenode;
                }                        
            }

            return tmptreenode;
        }


        protected override void Dispose(bool disposing)
        {
            base.Dispose(disposing);
        }

        private void InitializeComponent()
        {
            this.mnuMainMenu = new System.Windows.Forms.MainMenu();
            this.tvTreeView = new System.Windows.Forms.TreeView();
            this.tvTreeView.Indent = 20;
            this.tvTreeView.Location = new System.Drawing.Point(0, 0);
            this.tvTreeView.Size = new System.Drawing.Size(176, 180);
            updateTreeView();
            this.ClientSize = new System.Drawing.Size(176, 180);
            this.Controls.Add(this.tvTreeView);
            this.Menu = this.mnuMainMenu;
        }     

        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }
    }
}