/// <summary>
/// Pushs a new undo operation onto the undo stack.
/// </summary>
/// <param name="operation">Operation to push onto stack.</param>
private void PushUndoOperation(UndoOperation operation)
{
_undoStack.Push(operation);
}
/// <summary>
/// Pushs a new reddo operation onto the reddo stack.
/// </summary>
/// <param name="operation">Operation to push onto stack.</param>
private void PushRedoOperation(UndoOperation operation)
{
_redoStack.Push(operation);
}
