/// <summary>
/// Draw the X,Y axis of the Stock snapshot, To build up the main stock chart
/// </summary>
/// <param name="canvas"></param>
public void DrawStockMajorToCanvas(ref Canvas canvas)
{
double xmin = marginX;
double xmax = width - marginX;
double ymin = marginY;
double ymax = height - marginY;
double stepX = (xmax - xmin) / (x_count - 1);
double stepY = (ymax - ymin) / (y_count - 1);
BuilderTools.Axis(ref canvas, xmin, xmax, ymax, ymax, x_count, 0, datesAxisKeypoint, 1, Brushes.Black); // build x
BuilderTools.Axis(ref canvas, xmin, xmin, ymin, ymax, y_count, 1, pricesAxisKeypoint, 1, Brushes.Black); //build y1 for price
BuilderTools.Axis(ref canvas, xmax, xmax, ymin, ymax, y_count, 1, volumesAxisKeypoint, 1, Brushes.Black); // build y2 for volume
var points = stockData.Charts[Constant.ChartMapper[type]];
if (menuSetting.ChartSettings["CHARTTYPE"])
{
var stockPath = BuilderTools.LineChart(xmin, ymin, ymax, stepX, stepY, points.Select(p => p.ClosePrice).ToList(), 0, GeneralTools.StringParser(pricesAxisKeypoint[0]), GeneralTools.StringParser(pricesAxisKeypoint.Last()), 1, Brushes.Blue, false);
canvas.Children.Add(stockPath);
}
else
{
var stockPath = BuilderTools.CandleChart(xmin, ymin, ymax, stepX, stepY, points.Select(p => p.OpenPrice).ToList(), points.Select(p => p.ClosePrice).ToList(), points.Select(p => p.HighPrice).ToList(), points.Select(p => p.LowPrice).ToList(), 0, GeneralTools.StringParser(pricesAxisKeypoint[0]), GeneralTools.StringParser(pricesAxisKeypoint.Last()), 1, Brushes.Blue, false);
foreach (var p in stockPath)
{
canvas.Children.Add(p);
}
}
if (menuSetting.ChartSettings["SMA10"])
{
var sma_10 = BuilderTools.LineChart(xmin, ymin, ymax, stepX, stepY, points.Select(p => p.SMA_10).ToList(), 0, GeneralTools.StringParser(pricesAxisKeypoint[0]), GeneralTools.StringParser(pricesAxisKeypoint.Last()), 2, Brushes.Green, true);
canvas.Children.Add(sma_10);
}
if (menuSetting.ChartSettings["SMA50"])
{
var sma_50 = BuilderTools.LineChart(xmin, ymin, ymax, stepX, stepY, points.Select(p => p.SMA_50).ToList(), 0, GeneralTools.StringParser(pricesAxisKeypoint[0]), GeneralTools.StringParser(pricesAxisKeypoint.Last()), 2, Brushes.DarkSeaGreen, true);
canvas.Children.Add(sma_50);
}
if (menuSetting.ChartSettings["SMA200"])
{
var sma_200 = BuilderTools.LineChart(xmin, ymin, ymax, stepX, stepY, points.Select(p => p.SMA_200).ToList(), 0, GeneralTools.StringParser(pricesAxisKeypoint[0]), GeneralTools.StringParser(pricesAxisKeypoint.Last()), 2, Brushes.Blue, true);
canvas.Children.Add(sma_200);
}
//start to draw stock
if (menuSetting.ChartSettings["VOLUME"])
{
var volumePath = GetVolumeChartPath(xmin, ymin, ymax, stepX, stepY, VolumeStringToVolume(volumesAxisKeypoint.Last()));
canvas.Children.Add(volumePath);
}
if (menuSetting.ChartSettings["TREND"] && menuSetting.ChartType == Constant.DAILYCHART)
{
var TrendPath = GetTrendLineChartPath(xmin, ymin, ymax, stepX, stepY, GeneralTools.StringParser(pricesAxisKeypoint[0]), GeneralTools.StringParser(pricesAxisKeypoint.Last()), 2, Brushes.LightBlue, false);
canvas.Children.Add(TrendPath[0]);
canvas.Children.Add(TrendPath[1]);
}
canvas.MouseDown += new MouseButtonEventHandler(AddPointInfo);
canvas.MouseUp += new MouseButtonEventHandler(RemovePointInfo);
}
private void AddPointInfo(object sender, MouseButtonEventArgs e)
{
Canvas canvas = (Canvas)sender;
var point = e.GetPosition(canvas);
double index = (x_count - 1) * ((point.X - marginX) / (width - 2 * marginX));
var points = stockData.Charts[Constant.ChartMapper[type]];
index = datesAxisKeypoint.Count - 1 - (int)index;
if (canvas.Name == "Stock")
{
tmp = BuilderTools.AddText("P:" + points[(int)index].ClosePrice + ",\n" + "V:" + points[(int)index].Volume + ",\n" + "S10:" + points[(int)index].SMA_10 + ",\n" + "S50:" + points[(int)index].SMA_50 + ",\n" + "S200:" + points[(int)index].SMA_200, point.X, point.Y, 50, 80);
}
else if (canvas.Name == "MACD")
{
tmp = BuilderTools.AddText(points[(int)index].MACD + ",\n" + points[(int)index].MACD_SIGNAL + ",\n" + points[(int)index].MACD_HIST, point.X, point.Y, 50, 50);
}
else if (canvas.Name == "RSI")
{
tmp = BuilderTools.AddText(points[(int)index].RSI + "", point.X, point.Y, 30, 20);
}
canvas.Children.Add(tmp);
}
private Path [] GetTrendLineChartPath(double xmin, double ymin, double ymax, double stepX, double stepY, double lowVal, double highVal, int strokeThickness, SolidColorBrush color, bool isDash)
{
StockSummary summary = sqlReader.ReadStockAnalysis("ACB");
if ((bool)summary.CacheData["fail"])
{
return(null);
}
double[] boundaries = summary.SerializedProperties["boundaries"] as double[];
var summaryDate = summary.LastUpdate;
int index = 0;
var points = stockData.Charts[Constant.ChartMapper[type]];
foreach (var point in points)
{
var tmp = point.Date.Split('-');
if (Int16.Parse(tmp[0]) == summaryDate.Year && Int16.Parse(tmp[1]) == summaryDate.Month && Int16.Parse(tmp[2]) == summaryDate.Day)
{
break;
}
index++;
}
int indexH = 100 - (index + (int)boundaries[1] + 60); // the start x axis point we draw the line
double startHigh = points.ElementAt(index + (int)boundaries[1]).HighPrice + 60 * boundaries[0];
int indexL = 100 - (index + (int)boundaries[3] + 60); // the start x axis point we draw the line
double startLow = points.ElementAt(index + (int)boundaries[3]).LowPrice + 60 * boundaries[2];
List <double> valH = new List <double>(); List <double> valL = new List <double>();
for (int i = 0; i < 100; i++)
{
valH.Add(startHigh - boundaries[0] * i);
valL.Add(startLow - boundaries[2] * i);
}
valH.Reverse();
valL.Reverse();
return(new Path[] { BuilderTools.LineChart(xmin, ymin, ymax, stepX, stepY, valH, indexH, lowVal, highVal, strokeThickness, color, false),
BuilderTools.LineChart(xmin, ymin, ymax, stepX, stepY, valL, indexL, lowVal, highVal, strokeThickness, color, false) });
}
public void DrawRSIToCanvas(ref Canvas canvas, int y_count)
{
double ymin = 5;
double ymax = canvas.Height - 5;
double xmin = marginX;
double xmax = canvas.Width - marginX;
double stepX = (xmax - xmin) / (x_count - 1);
double stepY = (ymax - ymin) / (y_count - 1);
BuilderTools.Axis(ref canvas, xmin, xmax, ymax - 10, ymax - 10, x_count, 0, datesAxisKeypoint, 1, Brushes.Black);
List <string> RSI = new List <string>()
{
"0", "10", "20", "30", "40", "50", "60", "70", "80", "90", "100"
};
BuilderTools.Axis(ref canvas, xmin, xmin, ymin, ymax, y_count, 1, RSI, 1, Brushes.Black);
var points = stockData.Charts[Constant.ChartMapper[type]];
var RSIPath = BuilderTools.LineChart(xmin, ymin, ymax, stepX, stepY, points.Select(p => p.RSI).ToList(), 0, 0, 100, 2, Brushes.Blue, false);
canvas.Children.Add(RSIPath);
canvas.MouseDown += new MouseButtonEventHandler(AddPointInfo);
canvas.MouseUp += new MouseButtonEventHandler(RemovePointInfo);
}
/// <summary>
/// currently 0 -> MACD; 1->RSI
/// </summary>
/// <param name="canvas"></param>
/// <param name="y_count"></param>
/// <param name="type"></param>
public void DrawMACDToCanvas(ref Canvas canvas, int y_count)
{
double ymid = canvas.Height / 2;
double xmin = marginX;
double xmax = canvas.Width - marginX;
double stepX = (xmax - xmin) / (x_count - 1);
double stepY = canvas.Height / (y_count - 1);
BuilderTools.Axis(ref canvas, xmin, xmax, ymid, ymid, x_count, 0, datesAxisKeypoint, 1, Brushes.Black);
BuilderTools.Axis(ref canvas, xmin, xmin, 0, 2 * ymid, y_count, 1, MACDAxisKeypoint, 1, Brushes.Black);
var lowVal = GeneralTools.StringParser(MACDAxisKeypoint.First());
var highVal = GeneralTools.StringParser(MACDAxisKeypoint.Last());
var MACDPath = GetMACDChartPath(xmin, ymid, stepX, stepY, lowVal, highVal);
foreach (var path in MACDPath)
{
canvas.Children.Add(path);
}
canvas.MouseDown += new MouseButtonEventHandler(AddPointInfo);
canvas.MouseUp += new MouseButtonEventHandler(RemovePointInfo);
}
