public void Add(IUndoData objectToUndoTo, string typeOfObject, MergeType mergeType)
{
IUndoData cloneableObject = objectToUndoTo;
if (cloneableObject != null)
{
if (currentUndoIndex <= 0 ||
mergeType == MergeType.NotMergable ||
undoBuffer[currentUndoIndex].typeOfObject != typeOfObject)
{
currentUndoIndex++;
}
UndoCheckPoint newUndoCheckPoint = new UndoCheckPoint(cloneableObject.Clone(), typeOfObject, mergeType);
if (currentUndoIndex < undoBuffer.Count)
{
undoBuffer[currentUndoIndex] = newUndoCheckPoint;
}
else
{
undoBuffer.Add(newUndoCheckPoint);
}
lastValidUndoIndex = currentUndoIndex;
}
}
