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;
//}
}
