/// <summary>
/// Adds all items in the list to the internal data items list.
/// If the first items are continuation of the previous added timeframe, then a change notification is raised for the changed items.
/// Then all remaining items are added and only one notification is raised for all of them.
/// </summary>
/// <param name="items"></param>
public void AddData(IList<IDataItem> items)
{
if((items == null) || (items.Count == 0))
throw new ArgumentException();
List<IDataItem> newItems = null;
IDataItem oldItem = null;
int index;
DateTime date;
double open, high, low, close;
long volume;
if ((_dataItems.Count > 0) &&
(TimeFrameDurations.Start(Timeframe, _dataItems[_dataItems.Count - 1].Date) == TimeFrameDurations.Start(Timeframe, items[0].Date)))
{
oldItem = _dataItems[_dataItems.Count - 1];
//date = oldItem.Date;
date = TimeFrameDurations.Start(Timeframe, _dataItems[_dataItems.Count - 1].Date);
open = oldItem.Open;
high = oldItem.High;
low = oldItem.Low;
close = oldItem.Close;
volume = oldItem.Volume;
index = 0;
while ((index < items.Count) && TimeFrameDurations.Start(Timeframe, date) == TimeFrameDurations.Start(Timeframe, items[index].Date))
{
//date = items[index].Date;
high = Math.Max(high, items[index].High);
low = Math.Min(low, items[index].Low);
close = items[index].Close;
volume += items[index].Volume;
index++;
}
IDataItem newItem = new DataItem(date, open, high, low, close, volume);
_dataItems[_dataItems.Count - 1] = newItem;
OnDataChanged(oldItem, newItem);
}
else
index = 0;
if (index < items.Count)
newItems = new List<IDataItem>();
while(index < items.Count)
{
//date = items[index].Date;
date = TimeFrameDurations.Start(Timeframe, items[index].Date);
date = items[index].Date;
open = items[index].Open;
high = items[index].High;
low = items[index].Low;
close = items[index].Close;
volume = items[index].Volume;
index++;
while ((index < items.Count) && TimeFrameDurations.Start(Timeframe, date) == TimeFrameDurations.Start(Timeframe, items[index].Date))
{
//date = items[index].Date;
high = Math.Max(high, items[index].High);
low = Math.Min(low, items[index].Low);
close = items[index].Close;
volume += items[index].Volume;
index++;
}
newItems.Add(new DataItem(date, open, high, low, close, volume));
}
if ((newItems != null) && (newItems.Count > 0))
OnDataAdded(newItems);
}
public void AddData(IDataItem item)
{
if ((_dataItems.Count > 0) &&
TimeFrameDurations.Start(Timeframe, _dataItems[_dataItems.Count - 1].Date) == TimeFrameDurations.Start(Timeframe, item.Date))
{
IDataItem oldItem = _dataItems[_dataItems.Count - 1];
IDataItem newItem = new DataItem(TimeFrameDurations.Start(Timeframe, item.Date), oldItem.Open, Math.Max(oldItem.High, item.High), Math.Min(oldItem.Low, item.Low), item.Close);
_dataItems[_dataItems.Count - 1] = newItem;
OnDataChanged(oldItem, newItem);
}
else
{
List<IDataItem> items = new List<IDataItem>();
items.Add(item);
OnDataAdded(items);
}
}