RssToolbar - Desktop RSS Ticker

/*
 Name: RSSToolbar 
 Author: Neal T Bailey (nealbailey@hotmail.com)
 Purpose: Fetch Rss feeds
 License: Creative Commons (must reference original author)
 
 Notes: This was a .NET v1.1 project that was upgraded to .NET v2.0 
 
*/

using System;
using System.IO;
using System.Drawing;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using Rss;

namespace RSSToolbar
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
        //Threaded Ui
        private delegate void UpdateUiCallback(string news);
        private IniDataReader _iniReader;
        private string _htmlFile;
        private int _maxHeadlines = 0;
        private int _maxStories = 0;
        
		private System.Windows.Forms.Timer timer1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Panel panel1;
        private Button button1;
        private ContextMenuStrip contextMenuStrip1;
        private ToolStripMenuItem refreshToolStripMenuItem;
        private ToolStripMenuItem closeToolStripMenuItem;
        private ToolStripMenuItem toHTMLToolStripMenuItem;
		private System.ComponentModel.IContainer components;

		public Form1()
		{
			InitializeComponent();
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.components = new System.ComponentModel.Container();
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
            this.timer1 = new System.Windows.Forms.Timer(this.components);
            this.label1 = new System.Windows.Forms.Label();
            this.contextMenuStrip1 = new System.Windows.Forms.ContextMenuStrip(this.components);
            this.refreshToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.toHTMLToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.closeToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.panel1 = new System.Windows.Forms.Panel();
            this.button1 = new System.Windows.Forms.Button();
            this.contextMenuStrip1.SuspendLayout();
            this.panel1.SuspendLayout();
            this.SuspendLayout();
            // 
            // timer1
            // 
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.BackColor = System.Drawing.Color.White;
            this.label1.ContextMenuStrip = this.contextMenuStrip1;
            this.label1.Font = new System.Drawing.Font("Tahoma", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.label1.Location = new System.Drawing.Point(40, 0);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(0, 19);
            this.label1.TabIndex = 0;
            // 
            // contextMenuStrip1
            // 
            this.contextMenuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.refreshToolStripMenuItem,
            this.toHTMLToolStripMenuItem,
            this.closeToolStripMenuItem});
            this.contextMenuStrip1.Name = "contextMenuStrip1";
            this.contextMenuStrip1.Size = new System.Drawing.Size(114, 70);
            // 
            // refreshToolStripMenuItem
            // 
            this.refreshToolStripMenuItem.Image = ((System.Drawing.Image)(resources.GetObject("refreshToolStripMenuItem.Image")));
            this.refreshToolStripMenuItem.Name = "refreshToolStripMenuItem";
            this.refreshToolStripMenuItem.Size = new System.Drawing.Size(113, 22);
            this.refreshToolStripMenuItem.Text = "Refresh";
            this.refreshToolStripMenuItem.Click += new System.EventHandler(this.refreshToolStripMenuItem_Click);
            // 
            // toHTMLToolStripMenuItem
            // 
            this.toHTMLToolStripMenuItem.Image = ((System.Drawing.Image)(resources.GetObject("toHTMLToolStripMenuItem.Image")));
            this.toHTMLToolStripMenuItem.Name = "toHTMLToolStripMenuItem";
            this.toHTMLToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.toHTMLToolStripMenuItem.Text = "Launch";
            this.toHTMLToolStripMenuItem.Click += new System.EventHandler(this.toHTMLToolStripMenuItem_Click);
            // 
            // closeToolStripMenuItem
            // 
            this.closeToolStripMenuItem.Image = ((System.Drawing.Image)(resources.GetObject("closeToolStripMenuItem.Image")));
            this.closeToolStripMenuItem.Name = "closeToolStripMenuItem";
            this.closeToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.closeToolStripMenuItem.Text = "Exit";
            this.closeToolStripMenuItem.Click += new System.EventHandler(this.closeToolStripMenuItem_Click);
            // 
            // textBox1
            // 
            this.textBox1.BackColor = System.Drawing.Color.White;
            this.textBox1.ForeColor = System.Drawing.Color.White;
            this.textBox1.Location = new System.Drawing.Point(8, 64);
            this.textBox1.MaxLength = 0;
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(296, 20);
            this.textBox1.TabIndex = 1;
            this.textBox1.Text = "textBox1";
            this.textBox1.TextChanged += new System.EventHandler(this.textBox1_TextChanged);
            // 
            // panel1
            // 
            this.panel1.BackColor = System.Drawing.Color.White;
            this.panel1.Controls.Add(this.button1);
            this.panel1.Controls.Add(this.label1);
            this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.panel1.Location = new System.Drawing.Point(0, 0);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(656, 26);
            this.panel1.TabIndex = 2;
            // 
            // button1
            // 
            this.button1.Dock = System.Windows.Forms.DockStyle.Left;
            this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.button1.Image = ((System.Drawing.Image)(resources.GetObject("button1.Image")));
            this.button1.Location = new System.Drawing.Point(0, 0);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(25, 26);
            this.button1.TabIndex = 2;
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(656, 26);
            this.Controls.Add(this.panel1);
            this.Controls.Add(this.textBox1);
            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
            this.Name = "Form1";
            this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
            this.Text = "Form1";
            this.TopMost = true;
            this.TransparencyKey = System.Drawing.Color.Transparent;
            this.Load += new System.EventHandler(this.Form1_Load);
            this.contextMenuStrip1.ResumeLayout(false);
            this.panel1.ResumeLayout(false);
            this.panel1.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

		}

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
			Application.Run(new Form1());
		}

		private void Form1_Load(object sender, System.EventArgs e)
		{
            this.FormBorderStyle = FormBorderStyle.None;
            this.TransparencyKey = Color.FromArgb(0, 255, 0);
            this.Width = Screen.PrimaryScreen.Bounds.Width;
            this.button1.Height = panel1.Height;
            this.label1.Height = panel1.Height;
            			
			_iniReader = new IniDataReader(Application.StartupPath + "\\settings.ini");
            _maxHeadlines = _iniReader.GetIntValue("maxheadlines");
            _maxStories = _iniReader.GetIntValue("maxstories");
            _htmlFile = String.Format("{0}\\{1}.htm", 
                Application.StartupPath, Path.GetFileName(Path.GetTempFileName()));

            foreach (string fil in Directory.GetFiles(Application.StartupPath, "*.htm", SearchOption.TopDirectoryOnly))
            {
                File.Delete(fil);
            }

            label1.Font = new Font(_iniReader.GetStringValue("fontface"), _iniReader.GetIntValue("fontsize"), FontStyle.Regular);
			this.timer1.Enabled = true;
            this.timer1.Interval = _iniReader.GetIntValue("speed");
            InitiateThread();			
		}

        private void InitiateThread()
        {
            this.textBox1.Text = "Desktop News Ticker - Now Loading Feeds....";
            Thread rssStart = new Thread(new ThreadStart(StartRssThread));
            rssStart.IsBackground = true;
            rssStart.Start();
        }

        private void UpdateUi(string news)
        {
            textBox1.Text = news;
            this.Text = "C# Rss Aggregator (Ticker) - BaileySoft 2006";
        }

		//Start Rss Parsing
		private void StartRssThread()
		{
            List<RssChannel> channels = new List<RssChannel>();
			StringBuilder mergedFeed =  new StringBuilder();
            int mh = 0;

			foreach (string rssUrl in PopulateUrls())
            {
                int ms = 0;
                if (mh < _maxHeadlines)
                {
                    RssFeed DaFeed = RssFeed.Read(rssUrl);
                    RssChannel DaChannel = (RssChannel)DaFeed.Channels[0];
                    channels.Add(DaChannel);
                    mergedFeed.AppendFormat(" {0}: ", DaChannel.Title);

                    foreach (RssItem sTrm in DaChannel.Items)
                    {
                        if (ms < _maxStories)
                        {
                            mergedFeed.AppendFormat(" {0} |", sTrm.Title);
                            ms++;
                            mh++;
                        }
                    }
                }
			}
            string dafeed = mergedFeed.ToString();
            mergedFeed = null;
            textBox1.Invoke(new UpdateUiCallback(this.UpdateUi), new string[] { dafeed });
            MakeHtml(channels);
		}

        private void MakeHtml(List<RssChannel> feeds)
        {
            StringBuilder sb = new StringBuilder();
            sb.Append("<html><head></head><body style=\"margin-left: 150px;font-family: Arial, sans-serif;font-size: 10pt;\"><img src=\"baileyrss.png\" />");

            foreach (RssChannel feed in feeds)
            {
                sb.Append("<p></p>");
                sb.AppendFormat("<b>{0}:</b><p></p>", feed.Title);
                foreach (RssItem sTrm in feed.Items)
                {
                    sb.AppendFormat("<a style=\"text-decoration: none;\" href=\"{0}\">{1}</a><br />", sTrm.Link, sTrm.Title);
                }
            }
            sb.Append("</body></html>");

            StreamWriter sw = File.CreateText(_htmlFile);
            sw.Write(sb.ToString());
            sw.Flush();
            sw.Close();
        }

		private List<string> PopulateUrls()
		{
            List<string> alUrls = new List<string>();

			for (int i = 1; i <= 5; i++)
			{
				string pVal = _iniReader.GetStringValue(Convert.ToString(i));
				if (!String.IsNullOrEmpty(pVal))
				{
					alUrls.Add(pVal);
				}				
			}
			return alUrls;
		}

		//Regular Expression to Remove HTML/XML tags
		private string StripTags(string HTML)
		{
			return Regex.Replace(HTML, "<[^>]*>", "");
		}

		private void textBox1_TextChanged(object sender, System.EventArgs e)
		{
			//this.label1.
			this.label1.Text = this.textBox1.Text;
		}

		private void timer1_Tick(object sender, System.EventArgs e)
		{
				this.label1.Left = this.label1.Left - 1;
				if (this.label1.Left + this.label1.Width < 0)
				{
				this.label1.Left = this.panel1.Width;
				} 
		}

        private void closeToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void refreshToolStripMenuItem_Click(object sender, EventArgs e)
        {
            InitiateThread();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start(_htmlFile);
        }

        private void toHTMLToolStripMenuItem_Click(object sender, EventArgs e)
        {
            System.Diagnostics.Process.Start(_htmlFile);
        }
	}
}