source: branches/HeuristicLab.Problems.GrammaticalOptimization/DynamicDataDisplay/Converters/TwoValuesMultiConverter.cs @ 13834

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

namespace Microsoft.Research.DynamicDataDisplay.Converters
{
  public abstract class TwoValuesMultiConverter<T1, T2> : IMultiValueConverter
  {
    #region IMultiValueConverter Members

    public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
      if (values != null && values.Length == 2)
      {
        if (values[0] is T1 && values[1] is T2)
        {
          T1 param1 = (T1)values[0];
          T2 param2 = (T2)values[1];

          var result = ConvertCore(param1, param2, targetType, parameter, culture);
          return result;
        }
      }

      return DependencyProperty.UnsetValue;
    }

    protected abstract object ConvertCore(T1 value1, T2 value2, Type targetType, object parameter, System.Globalization.CultureInfo culture);

    public virtual object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
    {
      throw new NotSupportedException();
    }

    #endregion
  }
}