public void AddItem(HistoryItem item)
{
Debug.Assert(item != null);
Debug.Assert(m_undoList.Count <= m_maxUndoLevel);
if (m_maxUndoLevel == 0)
return;
if (m_undoList.Count == m_maxUndoLevel)
{
// Remove the oldest entry from the undo list to make room.
item = (HistoryItem)m_undoList[0];
m_undoList.RemoveAt(0);
}
// Insert the new undoable command into the undo list.
m_undoList.Add(item);
// Clear the redo stack.
ClearRedo();
}
public void AddItem(HistoryItem item)
{
Debug.Assert(item != null);
Debug.Assert(m_undoList.Count <= m_maxUndoLevel);
if (m_maxUndoLevel == 0)
{
return;
}
if (m_undoList.Count == m_maxUndoLevel)
{
// Remove the oldest entry from the undo list to make room.
item = (HistoryItem)m_undoList[0];
m_undoList.RemoveAt(0);
}
// Insert the new undoable command into the undo list.
m_undoList.Add(item);
// Clear the redo stack.
ClearRedo();
}