[FONT=Courier New]protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
{
// get the starting and ending bars from what is rendered on the chart
float startX = chartControl.GetXByBarIndex(ChartBars, ChartBars.FromIndex);
float endX = chartControl.GetXByBarIndex(ChartBars, ChartBars.ToIndex);
// Loop through each Plot Values on the chart
for (int seriesCount = 0; seriesCount < Values.Length; seriesCount++)
{
// get the value at the last bar on the chart (if it has been set)
if (Values[seriesCount].IsValidDataPointAt(ChartBars.ToIndex))
{
double plotValue = Values[seriesCount].GetValueAt(ChartBars.ToIndex);
// convert the plot value to the charts "Y" axis point
float chartScaleYValue = chartScale.GetYByValue(plotValue);
// calculate the x and y values for the line to start and end
SharpDX.Vector2 startPoint = new SharpDX.Vector2(startX, chartScaleYValue);
SharpDX.Vector2 endPoint = new SharpDX.Vector2(endX, chartScaleYValue);
// draw a line between the start and end point at each plot using the plots SharpDX Brush color and style
RenderTarget.DrawLine(startPoint, endPoint, Plots[seriesCount].BrushDX,
Plots[seriesCount].Width, Plots[seriesCount].StrokeStyle);
// use the chart control text form to draw plot values along the line
SharpDX.DirectWrite.TextFormat textFormat = chartControl.Properties.LabelFont.ToDirectWriteTextFormat();
// calculate the which will be rendered at each plot using it the plot name and its price
string textToRender = Plots[seriesCount].Name + ": " + plotValue;
// calculate the layout of the text to be drawn
SharpDX.DirectWrite.TextLayout textLayout = new SharpDX.DirectWrite.TextLayout(Core.Globals.DirectWriteFactory,
textToRender, textFormat, 200, textFormat.FontSize);
// draw a line at each plot using the plots SharpDX Brush color at the calculated start point
RenderTarget.DrawTextLayout(startPoint, textLayout, Plots[seriesCount].BrushDX);
// dipose of the unmanaged resources used
textLayout.Dispose();
textFormat.Dispose();
}
}
}[/FONT]
private static SharpDX.Direct2D1.Factory GetFactory()
{
if (null == myFactory)
{
myFactory = NinjaTrader.Core.Globals.D2DFactory;
}
return myFactory;
}
private static SharpDX.Direct2D1.Factory myFactory;
[FONT=Courier New]
private static Dictionary<int, Brush> FrozenBrushes;
private static byte GetA(int ARGB)
{
return (byte) ((ARGB & 0xFF000000) >> 0x18);
}
private static byte GetR(int ARGB)
{
return (byte) ((ARGB & 0x00FF0000) >> 0x10);
}
private static byte GetG(int ARGB)
{
return (byte) ((ARGB & 0x0000FF00) >> 0x08);
}
private static byte GetB(int ARGB)
{
return (byte) ((ARGB & 0x000000FF) >> 0x00);
}
private static int GetARGB(byte A, byte R, byte G, byte B)
{
return (A << 0x18) + (R << 0x10) + (G << 0x08) + (B << 0x00) ;
}
private static Brush GetFrozenBrush(SolidColorBrush SourceBrush)
{
Brush output;
int argb = GetARGB(SourceBrush.Color.A, SourceBrush.Color.R, SourceBrush.Color.G, SourceBrush.Color.B);
if (null == FrozenBrushes)
{
FrozenBrushes = new Dictionary<int, Brush>();
}
if (FrozenBrushes.ContainsKey(argb))
{
return FrozenBrushes[argb];
}
output = SourceBrush.Clone();
output.Freeze();
return (FrozenBrushes[argb] = output);
}[/FONT][FONT=Courier New][FONT=Courier New]
private static Brush GetFrozenBrush(byte A, byte R, byte G, byte B)
{
if (null != FrozenBrushes && FrozenBrushes.ContainsKey(GetARGB(A, R, G, B)))
{
return FrozenBrushes[[/FONT][/FONT][FONT=Courier New][FONT=Courier New][FONT=Courier New][FONT=Courier New]GetARGB(A, R, G, B)[/FONT][/FONT]];
}
return GetFrozenBrush(new SolidColorBrush(Color.FromArgb(A, R, G, B)));
}[/FONT][FONT=Courier New]
[/FONT] private static Brush GetFrozenBrush(int ARGB)
{
return GetFrozenBrush(GetA(ARGB), GetR(ARGB), GetG(ARGB), GetB(ARGB));
}[/FONT][FONT=Courier New]
[/FONT]
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