private void AddAction(ChangeAction action)
{
RedoHistory.Clear();
UndoHistory.Add(action);
action.ChangeID = ++CurrentChangeID;
if (UndoHistory.Count > MaxHistory)
{
HistoryLimitExceeded = true;
UndoHistory.RemoveAt(0);
}
UndoHistoryChanged?.Invoke(this, EventArgs.Empty);
}
public void Redo()
{
if (RedoHistory.Any())
{
BeginUndoRedo?.Invoke(this, EventArgs.Empty);
var lastAction = RedoHistory.Last();
CurrentChangeID = lastAction.ChangeID;
RedoHistory.Remove(lastAction);
UndoHistory.Add(lastAction);
ExecutingUndoRedo = true;
lastAction.Redo();
ExecutingUndoRedo = false;
EndUndoRedo?.Invoke(this, EventArgs.Empty);
UndoHistoryChanged?.Invoke(this, EventArgs.Empty);
}
}
private void ImageControl_MouseDown(object sender, MouseButtonEventArgs e)
{
if (IsEydropping)
{
UserEyedrops();
}
else
{
try
{
UndoHistory.Add(new Bitmap(LayeredImage.SelectedBitmapLayer.Source));
}
catch (ArgumentOutOfRangeException)
{ }
IsDrawing = true;
UserDrawsOnBitmap();
RedoHistory = new List <Bitmap>(MaxItemsInHistory);
}
}