namespace Netron.Diagramming.Core {
  /// <summary>
  /// Interface that your application classes can implement
  /// in order to perform the actual undo/redo functionality.	
  /// </summary>
  public interface IUndoSupport {
    /// <summary>
    /// Undo of the last action
    /// </summary>
    /// <remarks>Calling this on a class level will call the Undo method of the last ICommand in the stack.</remarks>
    void Undo();
    /// <summary>
    /// Performs the actual action or redo in case the actions was undoe before
    /// </summary>
    /// <remarks>Calling this on a class level will call the Redo method of the last ICommand in the stack.</remarks>
    void Redo();
  }
}