public RadialBrush(D2D1.RenderTarget e, D2D1.RadialGradientBrushProperties a, D2D1.GradientStopCollection g) : base(e, a, g) { Opacity = 1; Transform = Matrix3x2.Identity; RawCenter = a.Center; RawRadiusX = a.RadiusX; RawRadiusY = a.RadiusY; }
D2D1.Brush GetBrush(Rect frame, Brush brush) { if (brush == null) { return(null); } var sb = brush as SolidBrush; if (sb != null) { return(new D2D1.SolidColorBrush(renderTarget, sb.Color.ToColor4())); } var lgb = brush as LinearGradientBrush; if (lgb != null) { if (lgb.Stops.Count < 2) { return(null); } var props = new D2D1.LinearGradientBrushProperties { StartPoint = lgb.GetAbsoluteStart(frame).ToVector2(), EndPoint = lgb.GetAbsoluteEnd(frame).ToVector2(), }; return(new D2D1.LinearGradientBrush(renderTarget, props, GetStops(lgb.Stops))); } var rgb = brush as RadialGradientBrush; if (rgb != null) { if (rgb.Stops.Count < 2) { return(null); } var rad = rgb.GetAbsoluteRadius(frame); var center = rgb.GetAbsoluteCenter(frame); var focus = rgb.GetAbsoluteFocus(frame); var props = new D2D1.RadialGradientBrushProperties { Center = center.ToVector2(), RadiusX = (float)rad.Width, RadiusY = (float)rad.Height, GradientOriginOffset = (focus - center).ToVector2(), }; return(new D2D1.RadialGradientBrush(renderTarget, props, GetStops(rgb.Stops))); } // TODO: Radial gradient brushes return(new D2D1.SolidColorBrush(renderTarget, Colors.Black.ToColor4())); }
protected override void OnRender(ChartControl chartControl, ChartScale chartScale) { // This sample should be used along side the help guide educational resource on this topic: // http://www.ninjatrader.com/support/helpGuides/nt8/en-us/?using_sharpdx_for_custom_chart_rendering.htm // Default plotting in base class. Uncomment if indicators holds at least one plot // in this case we would expect NOT to see the SMA plot we have as well in this sample script //base.OnRender(chartControl, chartScale); // 1.1 - SharpDX Vectors and Charting RenderTarget Coordinates // The SharpDX SDK uses "Vector2" objects to describe a two-dimensional point of a device (X and Y coordinates) SharpDX.Vector2 startPoint; SharpDX.Vector2 endPoint; // For our custom script, we need a way to determine the Chart's RenderTarget coordinates to draw our custom shapes // This info can be found within the NinjaTrader.Gui.ChartPanel class. // You can also use various chartScale and chartControl members to calculate values relative to time and price // However, those concepts will not be discussed or used in this sample // Notes: RenderTarget is always the full ChartPanel, so we need to be mindful which sub-ChartPanel we're dealing with // Always use ChartPanel X, Y, W, H - as chartScale and chartControl properties WPF units, so they can be drastically different depending on DPI set startPoint = new SharpDX.Vector2(ChartPanel.X, ChartPanel.Y); endPoint = new SharpDX.Vector2(ChartPanel.X + ChartPanel.W, ChartPanel.Y + ChartPanel.H); // These Vector2 objects are equivalent with WPF System.Windows.Point and can be used interchangeably depending on your requirements // For convenience, NinjaTrader provides a "ToVector2()" extension method to convert from WPF Points to SharpDX.Vector2 SharpDX.Vector2 startPoint1 = new System.Windows.Point(ChartPanel.X, ChartPanel.Y + ChartPanel.H).ToVector2(); SharpDX.Vector2 endPoint1 = new System.Windows.Point(ChartPanel.X + ChartPanel.W, ChartPanel.Y).ToVector2(); // SharpDX.Vector2 objects contain X/Y properties which are helpful to recalculate new properties based on the initial vector float width = endPoint.X - startPoint.X; float height = endPoint.Y - startPoint.Y; // Or you can recalculate a new vector from existing vector objects SharpDX.Vector2 center = (startPoint + endPoint) / 2; // Tip: This check is simply added to prevent the Indicator dialog menu from opening as a user clicks on the chart // The default behavior is to open the Indicator dialog menu if a user double clicks on the indicator // (i.e, the indicator falls within the RenderTarget "hit testing") // You can remove this check if you want the default behavior implemented if (!IsInHitTest) { // 1.2 - SharpDX Brush Resources // RenderTarget commands must use a special brush resource defined in the SharpDX.Direct2D1 namespace // These resources exist just like you will find in the WPF/Windows.System.Media namespace // such as SolidColorBrushes, LienarGraidentBrushes, RadialGradientBrushes, etc. // To begin, we will start with the most basic "Brush" type // Warning: Brush objects must be disposed of after they have been used SharpDX.Direct2D1.Brush areaBrushDx; SharpDX.Direct2D1.Brush smallAreaBrushDx; SharpDX.Direct2D1.Brush textBrushDx; // for convenience, you can simply convert a WPF Brush to a DXBrush using the ToDxBrush() extension method provided by NinjaTrader // This is a common approach if you have a Brush property created e.g., on the UI you wish to use in custom rendering routines areaBrushDx = areaBrush.ToDxBrush(RenderTarget); smallAreaBrushDx = smallAreaBrush.ToDxBrush(RenderTarget); textBrushDx = textBrush.ToDxBrush(RenderTarget); // However - it should be noted that this conversion process can be rather expensive // If you have many brushes being created, and are not tied to WPF resources // You should rather favor creating the SharpDX Brush directly: // Warning: SolidColorBrush objects must be disposed of after they have been used SharpDX.Direct2D1.SolidColorBrush customDXBrush = new SharpDX.Direct2D1.SolidColorBrush(RenderTarget, SharpDX.Color.DodgerBlue); // 1.3 - Using The RenderTarget // before executing chart commands, you have the ability to describe how the RenderTarget should render // for example, we can store the existing RenderTarget AntialiasMode mode // then update the AntialiasMode to be the quality of non-text primitives are rendered SharpDX.Direct2D1.AntialiasMode oldAntialiasMode = RenderTarget.AntialiasMode; RenderTarget.AntialiasMode = SharpDX.Direct2D1.AntialiasMode.Aliased; // Note: The code above stores the oldAntialiasMode as a best practices // i.e., if you plan on changing a property of the RenderTarget, you should plan to set it back // This is to make sure your requirements to no interfere with the function of another script // Additionally smoothing has some performance impacts // Once you have defined all the necessary requirements for you object // You can execute a command on the RenderTarget to draw specific shapes // e.g., we can now use the RenderTarget's DrawLine() command to render a line // using the start/end points and areaBrushDx objects defined before RenderTarget.DrawLine(startPoint, endPoint, areaBrushDx, 4); // Since rendering occurs in a sequential fashion, after you have executed a command // you can switch a property of the RenderTarget to meet other requirements // For example, we can draw a second line now which uses a different AntialiasMode // and the changes render on the chart for both lines from the time they received commands RenderTarget.AntialiasMode = SharpDX.Direct2D1.AntialiasMode.PerPrimitive; RenderTarget.DrawLine(startPoint1, endPoint1, areaBrushDx, 4); // 1.4 - Rendering Custom Shapes // SharpDX namespace consists of several shapes you can use to draw objects more complicated than lines // For example, we can use the RectangleF object to draw a rectangle that covers the entire chart area SharpDX.RectangleF rect = new SharpDX.RectangleF(startPoint.X, startPoint.Y, width, height); // The RenderTarget consists of two commands related to Rectangles. // The FillRectangle() method is used to "Paint" the area of a Rectangle RenderTarget.FillRectangle(rect, areaBrushDx); // and DrawRectangle() is used to "Paint" the outline of a Rectangle RenderTarget.DrawRectangle(rect, customDXBrush, 2); // Another example is an ellipse which can be used to draw circles // The ellipse center point can be used from the Vectors calculated earlier // The width and height an absolute 100 device pixels // To ensure that pixel coordinates work across all DPI devices, we use the NinjaTrader ChartingExteions methods // Which will convert the "100" value from WPF pixels to Device Pixels both vertically and horizontally int ellipseRadiusY = ChartingExtensions.ConvertToVerticalPixels(100, ChartControl.PresentationSource); int ellipseRadiusX = ChartingExtensions.ConvertToHorizontalPixels(100, ChartControl.PresentationSource); SharpDX.Direct2D1.Ellipse ellipse = new SharpDX.Direct2D1.Ellipse(center, ellipseRadiusX, ellipseRadiusY); // 1.5 - Complex Brush Types and Shapes // For this ellipse, we can use one of the more complex brush types "RadialGradientBrush" // Warning: RadialGradientBrush objects must be disposed of after they have been used SharpDX.Direct2D1.RadialGradientBrush radialGradientBrush; // However creating a RadialGradientBrush requires a few more properties than SolidColorBrush // First, you need to define the array gradient stops the brush will eventually use SharpDX.Direct2D1.GradientStop[] gradientStops = new SharpDX.Direct2D1.GradientStop[2]; // With the gradientStops array, we can describe the color and position of the individual gradients gradientStops[0].Color = SharpDX.Color.Goldenrod; gradientStops[0].Position = 0.0f; gradientStops[1].Color = SharpDX.Color.SeaGreen; gradientStops[1].Position = 1.0f; // then declare a GradientStopCollection from our render target that uses the gradientStops array defined just before // Warning: GradientStopCollection objects must be disposed of after they have been used SharpDX.Direct2D1.GradientStopCollection gradientStopCollection = new SharpDX.Direct2D1.GradientStopCollection(RenderTarget, gradientStops); // we also need to tell our RadialGradientBrush to match the size and shape of the ellipse that we will be drawing // for convenience, SharpDX provides a RadialGradientBrushProperties structure to help define these properties SharpDX.Direct2D1.RadialGradientBrushProperties radialGradientBrushProperties = new SharpDX.Direct2D1.RadialGradientBrushProperties { GradientOriginOffset = new SharpDX.Vector2(0, 0), Center = ellipse.Point, RadiusX = ellipse.RadiusY, RadiusY = ellipse.RadiusY }; // we now have everything we need to create a radial gradient brush radialGradientBrush = new SharpDX.Direct2D1.RadialGradientBrush(RenderTarget, radialGradientBrushProperties, gradientStopCollection); // Finally, we can use this radialGradientBrush to "Paint" the area of the ellipse RenderTarget.FillEllipse(ellipse, radialGradientBrush); // 1.6 - Simple Text Rendering // For rendering custom text to the Chart, there are a few ways you can approach depending on your requirements // The most straight forward way is to "borrow" the existing chartControl font provided as a "SimpleFont" class // Using the chartControl LabelFont, your custom object will also change to the user defined properties allowing // your object to match different fonts if defined by user. // The code below will use the chartControl Properties Label Font if it exists, // or fall back to a default property if it cannot obtain that value NinjaTrader.Gui.Tools.SimpleFont simpleFont = chartControl.Properties.LabelFont ?? new NinjaTrader.Gui.Tools.SimpleFont("Arial", 12); // the advantage of using a SimpleFont is they are not only very easy to describe // but there is also a convenience method which can be used to convert the SimpleFont to a SharpDX.DirectWrite.TextFormat used to render to the chart // Warning: TextFormat objects must be disposed of after they have been used SharpDX.DirectWrite.TextFormat textFormat1 = simpleFont.ToDirectWriteTextFormat(); // Once you have the format of the font, you need to describe how the font needs to be laid out // Here we will create a new Vector2() which draws the font according to the to top left corner of the chart (offset by a few pixels) SharpDX.Vector2 upperTextPoint = new SharpDX.Vector2(ChartPanel.X + 10, ChartPanel.Y + 20); // Warning: TextLayout objects must be disposed of after they have been used SharpDX.DirectWrite.TextLayout textLayout1 = new SharpDX.DirectWrite.TextLayout(NinjaTrader.Core.Globals.DirectWriteFactory, NinjaTrader.Custom.Resource.SampleCustomPlotUpperLeftCorner, textFormat1, ChartPanel.X + ChartPanel.W, textFormat1.FontSize); // With the format and layout of the text completed, we can now render the font to the chart RenderTarget.DrawTextLayout(upperTextPoint, textLayout1, textBrushDx, SharpDX.Direct2D1.DrawTextOptions.NoSnap); // 1.7 - Advanced Text Rendering // Font formatting and text layouts can get as complex as you need them to be // This example shows how to use a complete custom font unrelated to the existing user-defined chart control settings // Warning: TextLayout and TextFormat objects must be disposed of after they have been used SharpDX.DirectWrite.TextFormat textFormat2 = new SharpDX.DirectWrite.TextFormat(NinjaTrader.Core.Globals.DirectWriteFactory, "Century Gothic", FontWeight.Bold, FontStyle.Italic, 32f); SharpDX.DirectWrite.TextLayout textLayout2 = new SharpDX.DirectWrite.TextLayout(NinjaTrader.Core.Globals.DirectWriteFactory, NinjaTrader.Custom.Resource.SampleCustomPlotLowerRightCorner, textFormat2, 400, textFormat1.FontSize); // the textLayout object provides a way to measure the described font through a "Metrics" object // This allows you to create new vectors on the chart which are entirely dependent on the "text" that is being rendered // For example, we can create a rectangle that surrounds our font based off the textLayout which would dynamically change if the text used in the layout changed dynamically SharpDX.Vector2 lowerTextPoint = new SharpDX.Vector2(ChartPanel.W - textLayout2.Metrics.Width - 5, ChartPanel.Y + (ChartPanel.H - textLayout2.Metrics.Height)); SharpDX.RectangleF rect1 = new SharpDX.RectangleF(lowerTextPoint.X, lowerTextPoint.Y, textLayout2.Metrics.Width, textLayout2.Metrics.Height); // We can draw the Rectangle based on the TextLayout used above RenderTarget.FillRectangle(rect1, smallAreaBrushDx); RenderTarget.DrawRectangle(rect1, smallAreaBrushDx, 2); // And render the advanced text layout using the DrawTextLayout() method // Note: When drawing the same text repeatedly, using the DrawTextLayout() method is more efficient than using the DrawText() // because the text doesn't need to be formatted and the layout processed with each call RenderTarget.DrawTextLayout(lowerTextPoint, textLayout2, textBrushDx, SharpDX.Direct2D1.DrawTextOptions.NoSnap); // 1.8 - Cleanup // This concludes all of the rendering concepts used in the sample // However - there are some final clean up processes we should always provided before we are done // If changed, do not forget to set the AntialiasMode back to the default value as described above as a best practice RenderTarget.AntialiasMode = oldAntialiasMode; // We also need to make sure to dispose of every device dependent resource on each render pass // Failure to dispose of these resources will eventually result in unnecessary amounts of memory being used on the chart // Although the effects might not be obvious as first, if you see issues related to memory increasing over time // Objects such as these should be inspected first areaBrushDx.Dispose(); customDXBrush.Dispose(); gradientStopCollection.Dispose(); radialGradientBrush.Dispose(); smallAreaBrushDx.Dispose(); textBrushDx.Dispose(); textFormat1.Dispose(); textFormat2.Dispose(); textLayout1.Dispose(); textLayout2.Dispose(); } }
D2D1.Brush GetBrush(Rect frame, Brush brush) { if (brush == null) return null; var sb = brush as SolidBrush; if (sb != null) { return new D2D1.SolidColorBrush (renderTarget, sb.Color.ToColor4 ()); } var lgb = brush as LinearGradientBrush; if (lgb != null) { if (lgb.Stops.Count < 2) return null; var props = new D2D1.LinearGradientBrushProperties { StartPoint = lgb.GetAbsoluteStart (frame).ToVector2 (), EndPoint = lgb.GetAbsoluteEnd (frame).ToVector2 (), }; return new D2D1.LinearGradientBrush (renderTarget, props, GetStops (lgb.Stops)); } var rgb = brush as RadialGradientBrush; if (rgb != null) { if (rgb.Stops.Count < 2) return null; var rad = rgb.GetAbsoluteRadius (frame); var center = rgb.GetAbsoluteCenter (frame); var focus = rgb.GetAbsoluteFocus (frame); var props = new D2D1.RadialGradientBrushProperties { Center = center.ToVector2 (), RadiusX = (float)rad.Width, RadiusY = (float)rad.Height, GradientOriginOffset = (focus - center).ToVector2 (), }; return new D2D1.RadialGradientBrush (renderTarget, props, GetStops (rgb.Stops)); } // TODO: Radial gradient brushes return new D2D1.SolidColorBrush (renderTarget, Colors.Black.ToColor4 ()); }
public static D2D.Brush ToD2DBrush(this Media.Brush brush, global::SharpDX.Vector2 renderSize, D2D.RenderTarget renderTarget) { if (brush == null) { return(null); } if (brush is Media.SolidColorBrush solid) { return(new D2D.SolidColorBrush(renderTarget, solid.Color.ToColor4())); } else if (brush is Media.LinearGradientBrush linear) { var brushProperties = new D2D.LinearGradientBrushProperties() { StartPoint = linear.StartPoint.ToVector2(), EndPoint = linear.EndPoint.ToVector2() }; if (linear.MappingMode == Media.BrushMappingMode.RelativeToBoundingBox) { Point strtPoint = new Point(linear.StartPoint.X * renderSize.X, linear.StartPoint.Y * renderSize.Y); Point endPoint = new Point(linear.EndPoint.X * renderSize.X, linear.EndPoint.Y * renderSize.Y); brushProperties.StartPoint = strtPoint.ToVector2(); brushProperties.EndPoint = endPoint.ToVector2(); } return(new D2D.LinearGradientBrush(renderTarget, brushProperties, new D2D.GradientStopCollection ( renderTarget, linear.GradientStops.Select(x => new D2D.GradientStop() { Color = x.Color.ToColor4(), Position = (float)x.Offset }).ToArray(), linear.ColorInterpolationMode.ToD2DColorInterpolationMode(), linear.SpreadMethod.ToD2DExtendMode() ) )); } #if NETFX_CORE #else else if (brush is Media.RadialGradientBrush radial) { var brushProperties = new D2D.RadialGradientBrushProperties() { Center = radial.Center.ToVector2(), GradientOriginOffset = radial.GradientOrigin.ToVector2(), RadiusX = (float)radial.RadiusX, RadiusY = (float)radial.RadiusY }; if (radial.MappingMode == Media.BrushMappingMode.RelativeToBoundingBox) { Point center = new Point(radial.Center.X * renderSize.X, radial.Center.Y * renderSize.Y); Point gradientOriginOffset = new Point((radial.GradientOrigin.X - 0.5) * renderSize.X, (radial.GradientOrigin.Y - 0.5) * renderSize.Y); brushProperties.Center = center.ToVector2(); brushProperties.GradientOriginOffset = gradientOriginOffset.ToVector2(); brushProperties.RadiusX = (float)(renderSize.X * radial.RadiusX); brushProperties.RadiusY = (float)(renderSize.Y * radial.RadiusY); } return(new D2D.RadialGradientBrush(renderTarget, brushProperties, new D2D.GradientStopCollection ( renderTarget, radial.GradientStops.Select(x => new D2D.GradientStop() { Color = x.Color.ToColor4(), Position = (float)x.Offset }).ToArray(), radial.ColorInterpolationMode.ToD2DColorInterpolationMode(), radial.SpreadMethod.ToD2DExtendMode() ))); } #endif else { throw new NotImplementedException("Brush does not support yet."); } }
/// <summary> /// Loads scene-specific content. /// </summary> private void LoadContent() { // reusable structure representing a text font with size and style _textFormat = _disposeCollector.Collect(new DW.TextFormat(_dwFactory, "Segoe UI", SharpDX.DirectWrite.FontWeight.SemiBold, SharpDX.DirectWrite.FontStyle.Italic, 16f)); // reusable brush structure _textBrush = _disposeCollector.Collect(new D2D.SolidColorBrush(_d2dDeviceContext, Color.Black)); // prebaked text - useful for constant labels as it greatly improves performance _textLayout = _disposeCollector.Collect(new DW.TextLayout(_dwFactory, "Demo DirectWrite text here.", _textFormat, 100f, 100f)); // another brush for ellipse outline _ellipseStrokeBrush = _disposeCollector.Collect(new D2D.SolidColorBrush(_d2dDeviceContext, Color.Blue)); // this is a structure so it is ok to recreate it every frame, but better to create only once, if possible _ellipse = new D2D.Ellipse(new Vector2(320, 240), 150, 100); // reusable structure describing a radial gradient properties var gradientProperties = new D2D.RadialGradientBrushProperties { Center = _ellipse.Point, RadiusX = _ellipse.RadiusX, RadiusY = _ellipse.RadiusY }; // gradient color description - here we'll draw a rainbow var gradientStops = _disposeCollector.Collect(new D2D.GradientStopCollection(_d2dDeviceContext, new[] { new D2D.GradientStop {Position = 0.00f, Color = Color.Red}, new D2D.GradientStop {Position = 0.16f, Color = Color.Orange}, new D2D.GradientStop {Position = 0.33f, Color = Color.Yellow}, new D2D.GradientStop {Position = 0.50f, Color = Color.Green}, new D2D.GradientStop {Position = 0.66f, Color = Color.LightBlue}, new D2D.GradientStop {Position = 0.83f, Color = Color.Blue}, new D2D.GradientStop {Position = 1.00f, Color = Color.Violet} })); // a radial gradient brush _ellipseFillBrush = _disposeCollector.Collect(new D2D.RadialGradientBrush(_d2dDeviceContext, ref gradientProperties, gradientStops)); }