using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Data;
using System.Windows;
using System.Collections;
using System.Text.RegularExpressions;

namespace HeuristicLab.OKB.Cockpit.Query {
  public class ListFormatter : IValueConverter {

    private Regex separator = new Regex(@"\s*,\s*");
    public Regex Separator {
      get {
        return separator;
      }
      set {
        separator = value;
      }
    }

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
      IList lst = value as IList;
      if (lst == null)
        return value;
      return string.Join(", ", lst.Cast<object>().Select(v => v.ToString()).ToArray());
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) {
      string s = value as string;
      if (string.IsNullOrEmpty(s))
        return null;
      return separator.Split((string)value).Cast<object>().ToList();
    }

  }
}