/// <summary>
/// Redo the last action.
/// </summary>
public void Redo()
{
if (_redoList.Count == 0)
{
return;
}
// Get the latest action to redo
UndoableAction action = _redoList[_redoList.Count - 1];
// Redo that action
action.Do(true);
// Remove the action from the redo list and add it to the undo list
_redoList.Remove(action);
_undoList.Add(action);
// Add action record to the history log
ActionRecord ar = new ActionRecord(DateTime.Now, action.Name,
action.Description, ActionType.Redo);
_actionsHistory.Add(ar);
// Notify that the state of the undo manager has changed
if (UndoStateChanged != null)
{
UndoStateChanged(this, EventArgs.Empty);
}
}
/// <summary>
/// Do the specified action while updating the internal undo/redo lists.
/// </summary>
/// <param name="action">The action to perform</param>
public void Do(UndoableAction action)
{
// Do the action
action.Do(false);
// Clear the redo list
_redoList.Clear();
// Add the action to the undo list.
_undoList.Add(action);
// Add action record to the history log
ActionRecord ar = new ActionRecord(DateTime.Now, action.Name,
action.Description, ActionType.Do);
_actionsHistory.Add(ar);
// Notify that the state of the undo manager has changed
if (UndoStateChanged != null)
{
UndoStateChanged(this, EventArgs.Empty);
}
}