internal void PushEvent(IUndoEvent undoEvent)
{
if (!IsBusy)
{
if (_activeGroups.Any())
{
_activeGroups.Peek().PushEvent(undoEvent);
}
else
{
_undoEvents.Push(undoEvent);
_redoEvents.Clear();
}
}
}
/// <summary>
/// Adds an IUndoEvent to the list, clears any events that have previously been undone.
/// </summary>
/// <param name="undoEvent">Event to be added to the list.</param>
public void Push(IUndoEvent undoEvent)
{
//If there are any undone events (events after the cursor index in the list), remove them.
if (_cursorIndex < _events.Count() - 1)
{
foreach (var eve in _events.GetRange(_cursorIndex + 1, _events.Count() - (_cursorIndex + 1)))
{
eve.Dispose();
}
_events.RemoveRange(_cursorIndex + 1, _events.Count() - (_cursorIndex + 1));
}
//Add the IUndoEvent to the list.
_events.Add(undoEvent);
//Move the cursor to the end of the buffer.
_cursorIndex = _events.Count() - 1;
}
/// <summary>
/// Adds an IUndoEvent to the list, clears any events that have previously been undone.
/// </summary>
/// <param name="undoEvent">Event to be added to the list.</param>
public void Push(IUndoEvent undoEvent)
{
//If there are any undone events (events after the cursor index in the list), remove them.
if (_cursorIndex < _events.Count() - 1)
{
foreach (var eve in _events.GetRange(_cursorIndex + 1, _events.Count() - (_cursorIndex + 1)))
{
eve.Dispose();
}
_events.RemoveRange(_cursorIndex + 1, _events.Count() - (_cursorIndex + 1));
}
//Add the IUndoEvent to the list.
_events.Add(undoEvent);
//Move the cursor to the end of the buffer.
_cursorIndex = _events.Count() - 1;
}
private void UndoRedo(Stack <IUndoEvent> from, Stack <IUndoEvent> to)
{
if (IsBusy)
{
throw new InvalidOperationException();
}
using (new FilePackager.Base.WPF.AutoCursor(System.Windows.Input.Cursors.Wait))
{
try
{
if (!from.Any())
{
throw new InvalidOperationException();
}
_currentUndoEvent = from.Pop();
// Do it
if (from == _undoEvents)
{
_currentUndoEvent.Undo();
}
else
{
_currentUndoEvent.Redo();
}
to.Push(_currentUndoEvent);
}
finally
{
_currentUndoEvent = null;
// Notify
if (IsBusyOrGroupFinished != null)
{
IsBusyOrGroupFinished(this, EventArgs.Empty);
}
}
}
}
public void PushEvent(IUndoEvent undoEvent)
{
_events.Add(undoEvent);
}