private void DrawAxisTests(Context ctx, Rectangle bounds)
{
Rectangle boundingBox;
Point tl = Point.Zero;
Point br = Point.Zero;
tl.X = bounds.Left + 30; tl.Y = bounds.Top + 20;
br.X = bounds.Right - 30; br.Y = bounds.Top + 20;
DateTime timeMin = new DateTime(2003, 10, 22, 15, 00, 00);
DateTime timeMax = new DateTime(2004, 03, 12, 13, 30, 00);
TradingDateTimeAxis axis = new TradingDateTimeAxis();
axis.WorldMin = (double)timeMin.Ticks;
axis.WorldMax = (double)timeMax.Ticks;
axis.Draw(ctx, tl, br, out boundingBox);
timeMin = new DateTime(2013, 09, 17, 12, 30, 10);
timeMax = new DateTime(2014, 01, 23, 12, 59, 30);
axis.WorldMin = (double)timeMin.Ticks;
axis.WorldMax = (double)timeMax.Ticks;
tl.Y += 50; br.Y += 50;
axis.Draw(ctx, tl, br, out boundingBox);
}
public StockChartBasic(string symbol)
{
this.Symbol = symbol;
DataTable emptyTable = new DataTable();
emptyTable.Columns.Add("Time", typeof(DateTime));
emptyTable.Columns.Add("Price", typeof(float));
// Create the price line for the plot
priceLine = new LinePlot();
priceLine.DataSource = emptyTable;
priceLine.AbscissaData = TIME_DATA_TAG;
priceLine.OrdinateData = PRICE_DATA_TAG;
priceLine.Color = GuiStyle.PRICE_COLOR_POSITIVE;
// Create the origin open price line
openLine = new LinePlot();
openLine.DataSource = emptyTable;
openLine.AbscissaData = TIME_DATA_TAG;
openLine.OrdinateData = PRICE_DATA_TAG;
openLine.Pen = new System.Drawing.Pen(GuiStyle.GUIDE_COLOR);
openLine.Pen.DashPattern = new float[] { 2.0f, 2.0f };
openLine.Pen.DashCap = System.Drawing.Drawing2D.DashCap.Round;
openLine.Pen.Width = 1.5f;
// Create the surface used to draw the plot
stockPricePlot = new NPlot.Swf.InteractivePlotSurface2D();
stockPricePlot.SurfacePadding = 0;
stockPricePlot.Add(priceLine);
stockPricePlot.Add(openLine);
stockPricePlot.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
stockPricePlot.ShowCoordinates = false;
stockPricePlot.XAxis1.HideTickText = true;
//stockPricePlot.XAxis1.NumberFormat = " h";
stockPricePlot.XAxis1.AxisColor = System.Drawing.Color.Transparent;
TradingDateTimeAxis tradeAxis = new TradingDateTimeAxis(stockPricePlot.XAxis1);
tradeAxis.StartTradingTime = new TimeSpan(9, 30, 0);
tradeAxis.EndTradingTime = new TimeSpan(16, 0, 0);
stockPricePlot.XAxis1 = tradeAxis;
stockPricePlot.YAxis1.HideTickText = true;
stockPricePlot.YAxis1.Color = System.Drawing.Color.Transparent;
stockPricePlot.PlotBackColor = GuiStyle.BACKGROUND_COLOR;
stockPricePlot.Canvas.HandleCreated += (sender, e) =>
{
stockPricePlot.Canvas.BackColor = stockPricePlot.Canvas.Parent.BackColor;
//SetChartData(Source);
};
stockPricePlot.Refresh();
}
/// <summary>
/// Sets the data for the chart to use
/// </summary>
/// <param name="data">A table of data which contains Time and Price columns</param>
public void SetChartData(DataTable data)
{
TradingDateTimeAxis tradeAxis = (TradingDateTimeAxis)stockPricePlot.XAxis1;
this.Source = data;
priceLine.DataSource = Source;
// Set the initial view of the data to the last trading day
tradeAxis.WorldMax = (double)((DateTime)data.Rows[data.Rows.Count - 1][TIME_DATA_TAG]).Date.Ticks;
tradeAxis.WorldMin = (double)((DateTime)data.Rows[data.Rows.Count - 1][TIME_DATA_TAG]).Date.AddHours(-12).Ticks;
// Create a data table which acts as a reference point for each day
DailyData = new DataTable();
DailyData.Columns.Add("Time", typeof(DateTime));
DailyData.Columns.Add("Price", typeof(float));
DailyData.Columns.Add("Min", typeof(float));
DailyData.Columns.Add("Max", typeof(float));
float dayPrice = (float)data.Rows[0][PRICE_DATA_TAG];
for (DateTime time = ((DateTime)data.Rows[0][TIME_DATA_TAG]).Date.AddHours(16); time <= ((DateTime)data.Rows[data.Rows.Count - 1][TIME_DATA_TAG]).Date.AddHours(16); time = time.AddDays(1))
{
int idx = GetTimeIndex(time);
if (((DateTime)data.Rows[idx][TIME_DATA_TAG]).Date == time.Date)
{
// Mark the time as the last trading time for the next day
DailyData.Rows.Add(time.Date.AddHours(9.5), dayPrice, 0, 0);
DailyData.Rows.Add(time.Date.AddHours(16), dayPrice, 0, 0);
// Set the ending price of this day as the reference point of the next day
dayPrice = (float)data.Rows[idx][PRICE_DATA_TAG];
}
}
openLine.DataSource = DailyData;
// Update the price text
priceText.Text = string.Format("{0:c}", (float)Source.Rows[Source.Rows.Count - 1][PRICE_DATA_TAG]);
// Refresh the chart
UpdatePriceMinMax();
stockPricePlot.Refresh();
}
/// <summary>
/// Updates and re-draws the chart based on the current data set
/// </summary>
protected virtual void UpdateChartData()
{
if (priceLine.DataSource != Source)
{
TradingDateTimeAxis tradeAxis = (TradingDateTimeAxis)stockPricePlot.XAxis1;
priceLine.DataSource = Source;
// Set the initial view of the data to the last trading day
tradeAxis.WorldMax = (double)((DateTime)Source.Rows[Source.Rows.Count - 1][TIME_DATA_TAG]).Date.AddHours(16).Ticks;
tradeAxis.WorldMin = tradeAxis.SparseWorldAdd((double)(new DateTime((long)tradeAxis.WorldMax)).Ticks, -(tradeAxis.EndTradingTime - tradeAxis.StartTradingTime).Ticks * 1.5);
// Create a data table which acts as a reference point for each day
DailyData = new DataTable();
DailyData.Columns.Add("Time", typeof(DateTime));
DailyData.Columns.Add("Price", typeof(float));
DailyData.Columns.Add("Min", typeof(float));
DailyData.Columns.Add("Max", typeof(float));
float dayPrice = (float)Source.Rows[0][PRICE_DATA_TAG];
for (DateTime time = ((DateTime)Source.Rows[0][TIME_DATA_TAG]).Date.AddHours(16); time <= ((DateTime)Source.Rows[Source.Rows.Count - 1][TIME_DATA_TAG]).Date.AddHours(16); time = time.AddDays(1))
{
int idx = GetTimeIndex(time);
if (((DateTime)Source.Rows[idx][TIME_DATA_TAG]).Date == time.Date)
{
// Mark the time as the last trading time for the next day
DailyData.Rows.Add(time.Date.AddHours(9.5), dayPrice, 0, 0);
DailyData.Rows.Add(time.Date.AddHours(16), dayPrice, 0, 0);
// Set the ending price of this day as the reference point of the next day
dayPrice = (float)Source.Rows[idx][PRICE_DATA_TAG];
}
}
openLine.DataSource = DailyData;
}
// Refresh the chart
UpdatePriceMinMax();
stockPricePlot.Refresh();
}
public StockChart()
{
DataTable emptyTable = new DataTable();
emptyTable.Columns.Add("Time", typeof(DateTime));
emptyTable.Columns.Add("Price", typeof(float));
// Create the price line for the plot
priceLine = new LinePlot();
priceLine.DataSource = emptyTable;
priceLine.AbscissaData = TIME_DATA_TAG;
priceLine.OrdinateData = PRICE_DATA_TAG;
priceLine.Color = PRICE_COLOR_POSITIVE;
// Create the origin open price line
openLine = new LinePlot();
openLine.DataSource = emptyTable;
openLine.AbscissaData = TIME_DATA_TAG;
openLine.OrdinateData = PRICE_DATA_TAG;
openLine.Pen = new System.Drawing.Pen(GUIDE_COLOR);
openLine.Pen.DashPattern = new float[] { 2.0f, 2.0f };
openLine.Pen.DashCap = System.Drawing.Drawing2D.DashCap.Round;
openLine.Pen.Width = 1.5f;
// Create the surface used to draw the plot
stockPricePlot = new NPlot.Swf.InteractivePlotSurface2D();
stockPricePlot.Add(priceLine);
stockPricePlot.Add(openLine);
stockPricePlot.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
stockPricePlot.ShowCoordinates = false;
stockPricePlot.XAxis1.TicksCrossAxis = false;
stockPricePlot.XAxis1.TickTextNextToAxis = true;
stockPricePlot.XAxis1.SmallTickSize = 0;
stockPricePlot.XAxis1.LargeTickSize = 0;
stockPricePlot.XAxis1.HideTickText = false;
//stockPricePlot.XAxis1.NumberFormat = " h";
stockPricePlot.XAxis1.TickTextColor = openLine.Pen.Color;
stockPricePlot.XAxis1.TickTextFont = new System.Drawing.Font("monospace", 8.0f, System.Drawing.FontStyle.Bold);
stockPricePlot.XAxis1.AxisColor = System.Drawing.Color.Transparent;
stockPricePlot.XAxis1.TicksLabelAngle = (float)0;
TradingDateTimeAxis tradeAxis = new TradingDateTimeAxis(stockPricePlot.XAxis1);
tradeAxis.StartTradingTime = new TimeSpan(9, 30, 0);
tradeAxis.EndTradingTime = new TimeSpan(16, 0, 0);
stockPricePlot.XAxis1 = tradeAxis;
stockPricePlot.YAxis1.HideTickText = false;
stockPricePlot.YAxis1.Color = System.Drawing.Color.Transparent;
stockPricePlot.YAxis1.TickTextNextToAxis = true;
stockPricePlot.YAxis1.TicksIndependentOfPhysicalExtent = true;
stockPricePlot.YAxis1.TickTextColor = openLine.Pen.Color;
stockPricePlot.PlotBackColor = BACKGROUND_COLOR;
stockPricePlot.SurfacePadding = 5;
// Create the interaction for the chart
stockPricePlot.AddInteraction(new PlotDrag(true, false));
stockPricePlot.AddInteraction(new AxisDrag());
stockPricePlot.AddInteraction(new HoverInteraction(this));
// Create the text controls
priceText = new Label();
priceText.Location = new System.Drawing.Point((stockPricePlot.Canvas.Width - 100) / 2, 10);
priceText.Font = new System.Drawing.Font("monoprice", 12.0f, System.Drawing.FontStyle.Regular);
priceText.ForeColor = System.Drawing.Color.White;
priceText.BackColor = System.Drawing.Color.Transparent;
priceText.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
stockPricePlot.Canvas.Controls.Add(priceText);
priceText.BringToFront();
stockPricePlot.Refresh();
}
