protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @"Demonstration script using the SharpDXHelper class for managed custom rendering";
Name = "SharpDXHelperExample";
Calculate = Calculate.OnBarClose;
IsOverlay = true;
DisplayInDataBox = true;
DrawOnPricePanel = true;
DrawHorizontalGridLines = true;
DrawVerticalGridLines = true;
PaintPriceMarkers = true;
ScaleJustification = NinjaTrader.Gui.Chart.ScaleJustification.Right;
//Disable this property if your indicator requires custom values that cumulate with each new market data event.
//See Help Guide for additional information.
IsSuspendedWhileInactive = true;
// Set defaults for our properties, can be assigned to our DX/Media Brush in states from State.DataLoaded to State.Historical
LineBrush = Brushes.RoyalBlue;
LineBrushWidth = 2;
LineBrushOpacity = 50.0;
RectangleBrush = Brushes.LightGreen;
RectangleBorderBrush = Brushes.Green;
RectangleBrushWidth = 5;
RectangleBrushOpacity = 10.0;
RoundedRectangleBrush = Brushes.DarkGreen;
RoundedRectangleBorderBrush = Brushes.LimeGreen;
RoundedRectangleBrushWidth = 5;
RoundedRectangleBrushOpacity = 10.0;
EllipseBrush = Brushes.DarkRed;
EllipseBrushWidth = 5;
EllipseBrushOpacity = 40.0;
string image1Path = System.IO.Path.Combine(NinjaTrader.Core.Globals.UserDataDir, "SharpDXHelper.png");
Image1Path = System.IO.File.Exists(image1Path) ? image1Path : String.Empty;
Image1Opacity = 30.0f;
string image2Path = System.IO.Path.Combine(NinjaTrader.Core.Globals.UserDataDir, "SharpDXHelper2.png");
Image2Path = System.IO.File.Exists(image2Path) ? image2Path : String.Empty;
Image2Opacity = 20.0f;
}
else if (State == State.DataLoaded)
{
// Create a Series<bool> to tell if we want to draw something for a particular bar, must have MaximumBarsLookBack.Infinite.
// This is more efficient than calculating what should be rendered during OnRender(), where we should only worry about how things should be rendered.
DrawSeries = new Series <bool>(this, MaximumBarsLookBack.Infinite);
// Create a list of brush names for us to manage with the helper class' "DXMediaBrush" Dictionary
string[] brushes = new string[] { "LineBrush", "RectBrush", "RectBorderBrush", "RoundedRectBrush", "RoundedRectBorderBrush", "EllipseBrush" };
// If we use resourses managed by the helper class (bitmaps and internally managed brushes created from Windows Media Brush references)
// and want to use a timer to clear brushes after a certain period of time, ChartControl must be used with the constructor for the resource timer and cannot be null
if (ChartControl != null)
{
// Create new instance of the Helper Class
// We are using managed brushes in this example, and have a 5 minute refresh period
// minutesToRefersh values of 0 or less will not create a timer for brush disposal
// This is useful for cleaning up programmatically created brushes that may not always be reused thorught a NinjaScript's life.
DXH = new DXHelper(true, ChartControl, 0);
// Add the brushes we defined in our brushes list
DXH.AddBrushes(brushes);
// Set our brushes to the values we would like
DXH.UpdateBrush(RenderTarget, "LineBrush", LineBrush, LineBrushOpacity);
DXH.UpdateBrush(RenderTarget, "RectBrush", RectangleBrush, RectangleBrushOpacity);
DXH.UpdateBrush(RenderTarget, "RectBorderBrush", RectangleBorderBrush, RectangleBrushOpacity);
DXH.UpdateBrush(RenderTarget, "RoundedRectBrush", RoundedRectangleBrush, RoundedRectangleBrushOpacity);
DXH.UpdateBrush(RenderTarget, "RoundedRectBorderBrush", RoundedRectangleBorderBrush, RoundedRectangleBrushOpacity);
DXH.UpdateBrush(RenderTarget, "EllipseBrush", EllipseBrush, EllipseBrushOpacity);
}
// Create a DXMediaBrush
DXMBrush = new DXMediaBrush();
DXMBrush.UpdateBrush(RenderTarget, LineBrush, LineBrushOpacity);
// Apply Opacity to LineBrush (used for User Defined Media Brush Demonstration. See overlay line 5.)
LineBrush = LineBrush.Clone();
LineBrush.Opacity = LineBrushOpacity / 100.0;
LineBrush.Freeze();
}
else if (State == State.Terminated)
{
// Dispose of the resources created by our helper class.
if (DXH != null)
{
DXH.Dispose();
}
}
}