public async Task <StockVolumnList> GetStockItems(string id)
{
StockVolumnList result = null;
await loadTask;
var share = shares.FirstOrDefault(s => s.StockId == id);
if (share != null)
{
result = FromCompleteStock(share);
}
return(result);
}
private StockVolumnList FromCompleteStock(CompleteShare s)
{
StockVolumnList svList = new StockVolumnList();
if (s.Dates != null)
{
svList.Prices = new List <StockItem>(s.Dates.Count);
svList.Volumns = new List <VolumnItem>(s.Dates.Count);
double preClose = calChangeByStart ? s.Closes[0] : 0;
for (int i = 0; i < s.Dates.Count; i++)
{
var sItem = new StockItem()
{
Date = s.Dates[i],
Value = s.Closes[i],
ValueChange = i != 0 ? (s.Closes[i] - preClose) / preClose : 0,
High = s.Highs[i],
Low = s.Lows[i],
Open = s.Opens[i]
};
svList.Prices.Add(sItem);
svList.Volumns.Add(new VolumnItem()
{
Date = s.Dates[i],
Value = s.Volumns[i],
Turnover = s.Turnovers[i],
IsRaise = s.Closes[i] > s.Opens[i] || (s.Closes[i] == s.Opens[i] && sItem.CloseChange > 0)
});
if (!calChangeByStart)
{
preClose = s.Closes[i];
}
}
}
return(svList);
}
private void CandleTrading(string id, ChartItemCollection priceColl, ChartItemCollection volumnColl, IEnumerable <ChartItemCollection> maColls, StockVolumnList svList, int mvStart = 0)
{
tradingTimer = new DispatcherTimer();
bool isStarted = false;
int i = 0;
tradingTimer.Interval = tradingPeriod;
tradingTimer.Tick += async(s, e) => {
var tvList = await Timeloader.GetStockItems(id);
if (i == tvList.Prices.Count)
{
tradingTimer.Stop();
return;
}
var candle = tvList.Prices[i];
var volumn = tvList.Volumns[i];
if (!isStarted)
{
priceColl.AddLatestChartItem(candle);
volumnColl.AddLatestChartItem(volumn);
UpdateMACollections(maColls, svList.Prices, candle, mvStart, isStarted);
isStarted = true;
}
else
{
var lastestCandle = priceColl.Items.Last() as StockItem;
var lastestVolumn = volumnColl.Items.Last() as VolumnItem;
candle = MergeChartItem(lastestCandle, candle);
volumn = MergeChartItem(lastestVolumn, volumn);
volumn.IsRaise = candle.Open <= candle.Close;
priceColl.UpdateLatestChartItem(candle);
volumnColl.UpdateLatestChartItem(volumn);
UpdateMACollections(maColls, svList.Prices, candle, mvStart, isStarted);
}
price.ForceDraw(false, false);
i++;
};
tradingTimer.Start();
}
private void CandleTrading(string id, ChartItemCollection priceColl, ChartItemCollection volumnColl, IEnumerable<ChartItemCollection> maColls, StockVolumnList svList, int mvStart = 0)
{
tradingTimer = new DispatcherTimer();
bool isStarted = false;
int i = 0;
tradingTimer.Interval = tradingPeriod;
tradingTimer.Tick += async (s, e) => {
var tvList = await Timeloader.GetStockItems(id);
if (i == tvList.Prices.Count)
{
tradingTimer.Stop();
return;
}
var candle = tvList.Prices[i];
var volumn = tvList.Volumns[i];
if (!isStarted)
{
priceColl.AddLatestChartItem(candle);
volumnColl.AddLatestChartItem(volumn);
UpdateMACollections(maColls, svList.Prices, candle, mvStart, isStarted);
isStarted = true;
}
else
{
var lastestCandle = priceColl.Items.Last() as StockItem;
var lastestVolumn = volumnColl.Items.Last() as VolumnItem;
candle = MergeChartItem(lastestCandle, candle);
volumn = MergeChartItem(lastestVolumn, volumn);
volumn.IsRaise = candle.Open <= candle.Close;
priceColl.UpdateLatestChartItem(candle);
volumnColl.UpdateLatestChartItem(volumn);
UpdateMACollections(maColls, svList.Prices, candle, mvStart, isStarted);
}
price.ForceDraw(false, false);
i++;
};
tradingTimer.Start();
}
private StockVolumnList FromCompleteStock(CompleteShare s)
{
StockVolumnList svList = new StockVolumnList();
if (s.Dates != null)
{
svList.Prices = new List<StockItem>(s.Dates.Count);
svList.Volumns = new List<VolumnItem>(s.Dates.Count);
double preClose = calChangeByStart ? s.Closes[0] : 0;
for (int i = 0; i < s.Dates.Count; i++)
{
var sItem = new StockItem()
{
Date = s.Dates[i],
Value = s.Closes[i],
ValueChange = i != 0 ? (s.Closes[i] - preClose) / preClose : 0,
High = s.Highs[i],
Low = s.Lows[i],
Open = s.Opens[i]
};
svList.Prices.Add(sItem);
svList.Volumns.Add(new VolumnItem()
{
Date = s.Dates[i],
Value = s.Volumns[i],
Turnover = s.Turnovers[i],
IsRaise = s.Closes[i] > s.Opens[i] || (s.Closes[i] == s.Opens[i] && sItem.CloseChange > 0)
});
if (!calChangeByStart)
preClose = s.Closes[i];
}
}
return svList;
}