internal static GraphPart CreateBids(double requiredVolume, Quotes quotes)
{
GraphPart result = new GraphPart(quotes);
List<Point2F> points = result.m_points;
long now = quotes.Time;
foreach (var element in quotes.Items)
{
Point2F point = new Point2F();
point.X = (element.Time - now) / 1000.0F;
point.Y = MathEx.CalculateWAVP(requiredVolume, element.Quote.Bids);
points.Add(point);
}
if (0 == quotes.Items.Count)
{
quotes.Items.Clear();
}
QuoteEx quote = quotes.Last;
if (null != quote.Quote)
{
Point2F point = new Point2F();
point.X = (quote.Time - now) / 1000.0F;
if (point.X < - quotes.Interval)
{
point.X = -(float)quotes.Interval;
}
point.Y = MathEx.CalculateWAVP(requiredVolume, quote.Quote.Bids);
points.Add(point);
}
return result;
}
internal ChartState(Parameters parameters, Quotes quotes)
{
m_parameters = parameters;
m_quotes = quotes;
this.Graphs = new List<Graph>();
this.XPhysicalDashes = new List<PointF>();
this.YPhysicalDashes = new List<PointF>();
}
internal static string Format(double lotSize,double roundingStepOfPrice, IEnumerable<double> volumes, Quotes quotes)
{
StringBuilder builder = new StringBuilder();
WriteHeader(volumes, builder);
foreach (var element in quotes.Items)
{
WriteQuote(lotSize, roundingStepOfPrice, volumes, element, quotes.Time, builder);
}
string result = builder.ToString();
return result;
}
internal void Update(Parameters parameters, ChartSettings settings, Quotes quotes)
{
if (m_grid.BackgroundColor != settings.BackgroundColor)
{
m_grid.BackgroundColor = settings.BackgroundColor;
}
Quote quote = quotes.Last.Quote;
int count = (null == quote) ? 0 : settings.Lines.Count;
Update(count);
for (int index = 0; index < count; ++index )
{
LineSettings line = settings.Lines[index];
Color volumeColor = CalculateColor(line.BidColor, line.AskColor, settings.ForegroundColor);
Update(settings, index, 0, (float)line.Volume, volumeColor);
double volume = line.Volume * parameters.LotSize;
float? bid = MathEx.CalculateWAVP(volume, quote.Bids);
float? ask = MathEx.CalculateWAVP(volume, quote.Asks);
if (bid.HasValue)
{
bid = (float)MathEx.RoundDown(bid.Value, parameters.PricePip);
}
if (ask.HasValue)
{
ask = (float)MathEx.RoundUp(ask.Value, parameters.PricePip);
}
Update(settings, index, 1, bid, line.BidColor);
Update(settings, index, 2, ask, line.AskColor);
float? spread = null;
if (bid.HasValue && ask.HasValue)
{
spread = (float)Math.Round(parameters.PriceFactor * (ask.Value - bid.Value));
}
Color spreadColor = CalculateColor(line.BidColor, line.AskColor, settings.ForegroundColor);
Update(settings, index, 3, spread, spreadColor);
}
Size size = m_grid.PreferredSize;
if (this.Size != size)
{
this.Size = size;
}
//if (!this.Visible)
//{
// this.Visible = true;
//}
}
private GraphPart(Quotes quotes)
{
m_points.Capacity = 1 + quotes.Items.Count;
}
internal static string Format(double lotSize, double roundingStepOfPrice, IEnumerable <double> volumes, Quotes quotes)
{
StringBuilder builder = new StringBuilder();
WriteHeader(volumes, builder);
foreach (var element in quotes.Items)
{
WriteQuote(lotSize, roundingStepOfPrice, volumes, element, quotes.Time, builder);
}
string result = builder.ToString();
return(result);
}
internal Graph(double requiredVolume, Quotes quotes)
{
m_bids = GraphPart.CreateBids(requiredVolume, quotes);
m_asks = GraphPart.CreateAsks(requiredVolume, quotes);
}