TickerLib/Models/FeedItem.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Windows.Media;
using MarketData.Utils;
using Ticker.Helper;

namespace Ticker.Models
{
  public class FeedBrushes
  {
    public enum BrushColor{Normal=0,Red=1,Green=2};
    public static Brush[] ContextBrushes={
     new SolidColorBrush((Color)ColorConverter.ConvertFromString("#00ABA9")),
     new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF0000")),
     new SolidColorBrush((Color)ColorConverter.ConvertFromString("#008000"))
    };
    private FeedBrushes()
    {
    }
    public static Brush GetContextBrush(BrushColor brushColor)
    {
      return ContextBrushes[(int)brushColor];
    }
  }
// 
  public class FeedItem : INotifyPropertyChanged 
  {
    public event PropertyChangedEventHandler PropertyChanged;
    private string title;
    private string pubDate;
    private string link;
    private string description;
    private string guid;
    private string source;
    private bool read;
    private FeedBrushes.BrushColor brushAssignment;

    public FeedItem()
    {
      brushAssignment=FeedBrushes.BrushColor.Normal;
    }
// Don't save the link.  Firstly, we don't need it, secondly, it contains '=' which are a keyword for NVP
    public NVPCollection ToNVPCollection()
    {
      NVPCollection nvpCollection=new NVPCollection();
      nvpCollection.Add(new NVP("Title",title));
      nvpCollection.Add(new NVP("PubDate",pubDate));
      String fixupLink=link.Replace("=","^");
      nvpCollection.Add(new NVP("Link",fixupLink));
      nvpCollection.Add(new NVP("Description",description));
      nvpCollection.Add(new NVP("Guid",guid));
      nvpCollection.Add(new NVP("Source",source));
      nvpCollection.Add(new NVP("Read",read.ToString()));
      return nvpCollection;
    }
    public static FeedItem FromString(String strFeedItem)
    {
      try
      {
        FeedItem feedItem=new FeedItem();
        NVPCollection nvpCollection=new NVPCollection(strFeedItem);
        NVPDictionary nvpDictionary=nvpCollection.ToDictionary();
        feedItem.Title=nvpDictionary["Title"].Get<String>();
        feedItem.PubDate=nvpDictionary["PubDate"].Get<String>();
        String fixupLink=nvpDictionary["Link"].Get<String>();
        feedItem.Link=fixupLink.Replace("^","=");
        feedItem.Description=nvpDictionary["Description"].Get<String>();
        feedItem.Guid=nvpDictionary["Guid"].Get<String>();
        feedItem.Source=nvpDictionary["Source"].Get<String>();
        feedItem.Read=nvpDictionary["Read"].Get<Boolean>();
        return feedItem;
      }
      catch(Exception)
      {
        return null;
      }
    }
    public Brush ForegroundBrush
    {
      get{return FeedBrushes.GetContextBrush(brushAssignment);}
    }
    public FeedBrushes.BrushColor BrushAssigment
    {
      get{return brushAssignment;}
      set{brushAssignment=value;if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("BrushAssigment"));}
    }
    public bool Read
    {
      get { return read; }
      set
      {
          read = value;
          if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("Read"));
      }
    }
    public string Source
    {
      get { return source; }
      set
      {
          source = value;
          if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("Source"));
      }
    }
    public string Guid
    {
      get { return guid; }
      set
      {
          guid = value;
          if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("Guid"));
      }
    }
    public string Description
    {
      get { return description; }
      set
      {
          description = value;
          if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("Description"));
      }
    }
    public string Link
    {
      get { return link; }
      set
      {
          link = value;
          if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("Link"));
      }
    }
    public string PubDate
    {
      get { return pubDate; }
      set
      {
          pubDate = value;
          if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("PubDate"));
      }
    }
    public string Title
    {
      get { return title; }
      set
      {
          title = value;
          if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("Title"));
      }
    }
  }
}