source: branches/HeuristicLab.Problems.GrammaticalOptimization/DynamicDataDisplay/Common/UndoSystem/DependencyPropertyChangedUndoAction.cs @ 13792

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

namespace Microsoft.Research.DynamicDataDisplay.Common.UndoSystem
{
  public class DependencyPropertyChangedUndoAction : UndoAction
  {
    private readonly DependencyProperty property;
    private readonly DependencyObject target;
    private readonly object oldValue;
    private readonly object newValue;

    public DependencyPropertyChangedUndoAction(DependencyObject target, DependencyProperty property, object oldValue, object newValue)
    {
      this.target = target;
      this.property = property;
      this.oldValue = oldValue;
      this.newValue = newValue;
    }

    public DependencyPropertyChangedUndoAction(DependencyObject target, DependencyPropertyChangedEventArgs e)
    {
      this.target = target;
      this.property = e.Property;
      this.oldValue = e.OldValue;
      this.newValue = e.NewValue;
    }

    public override void Do()
    {
      target.SetValue(property, newValue);
    }

    public override void Undo()
    {
      target.SetValue(property, oldValue);
    }
  }
}