public void FillGradientEllipse(float x, float y, float width, float height, System.Drawing.Color[] colors)
{
// Create the radial gradient brush properties object
SharpDX.Direct2D1.RadialGradientBrushProperties radProp = new SharpDX.Direct2D1.RadialGradientBrushProperties
{
RadiusX = width,
RadiusY = height,
Center = new SharpDX.Mathematics.Interop.RawVector2(x, y)
};
// Create a list of gratiend stops
List <SharpDX.Direct2D1.GradientStop> stops = new List <SharpDX.Direct2D1.GradientStop>();
// TODO: Create a color collection that also stores the color position
// Auto calulate color position
for (int i = 0; i < colors.Length; ++i)
{
SharpDX.Direct2D1.GradientStop stop = new SharpDX.Direct2D1.GradientStop
{
Color = ToColor(colors[i]),
Position = (float)(1.0 / colors.Length) * (i + 1)
};
stops.Add(stop);
}
SharpDX.Direct2D1.GradientStopCollection radStops = new SharpDX.Direct2D1.GradientStopCollection(d2dRenderTarget, stops.ToArray());
SharpDX.Direct2D1.RadialGradientBrush rgBrush = new SharpDX.Direct2D1.RadialGradientBrush(d2dRenderTarget, ref radProp, radStops);
SharpDX.Mathematics.Interop.RawVector2 center = new SharpDX.Mathematics.Interop.RawVector2(x, y);
SharpDX.Direct2D1.Ellipse ellipse = new SharpDX.Direct2D1.Ellipse(center, width, height);
d2dRenderTarget.FillEllipse(ellipse, rgBrush);
radStops.Dispose();
rgBrush.Dispose();
}
protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
{
// Call base OnRender() method to paint defined Plots.
base.OnRender(chartControl, chartScale);
// Store previous AA mode
SharpDX.Direct2D1.AntialiasMode oldAntialiasMode = RenderTarget.AntialiasMode;
RenderTarget.AntialiasMode = SharpDX.Direct2D1.AntialiasMode.PerPrimitive;
// Create Linear Graient Brush Properties
SharpDX.Direct2D1.RadialGradientBrushProperties rgbProps = new SharpDX.Direct2D1.RadialGradientBrushProperties();
rgbProps.Center = new SharpDX.Vector2(ChartPanel.W / 2, ChartPanel.H / 2);
rgbProps.RadiusX = ChartPanel.W / 2;
rgbProps.RadiusY = ChartPanel.W / 2;
// Create Gradient Stop1 for the Gradient Stop Collection
SharpDX.Direct2D1.GradientStop stop1;
stop1.Color = SharpDX.Color.DarkSalmon;
stop1.Position = 0;
// Create Gradient Stop2 for the Gradient Stop Collection
SharpDX.Direct2D1.GradientStop stop2;
stop2.Color = SharpDX.Color.DarkGreen;
stop2.Position = 1;
// Create GradientStop array for GradientStopCollection
SharpDX.Direct2D1.GradientStop[] rgbStops = new SharpDX.Direct2D1.GradientStop[] { stop1, stop2 };
// Make our GradientStopCollection
SharpDX.Direct2D1.GradientStopCollection rgbSGC = new SharpDX.Direct2D1.GradientStopCollection(RenderTarget, rgbStops);
// Finally, create the LinearGradientBrush
SharpDX.Direct2D1.RadialGradientBrush rgBrush = new SharpDX.Direct2D1.RadialGradientBrush(RenderTarget, rgbProps, rgbSGC);
// Render Draw Method here
RenderTarget.FillEllipse(new SharpDX.Direct2D1.Ellipse(new SharpDX.Vector2(ChartPanel.W / 2, ChartPanel.H / 2), ChartPanel.W / 2, ChartPanel.H / 2), rgBrush);
// This exmaple describes implementation in OnRender(), for more effieceny, dipose and recreate class level RenderTarget dependant objects in OnRederTargetStateChange()
rgbSGC.Dispose();
rgBrush.Dispose();
// Reset AA mode.
RenderTarget.AntialiasMode = oldAntialiasMode;
}
void InitText(SwapChain3 tempSwapChain)
{
init = true;
device = tempSwapChain.GetDevice <SharpDX.Direct3D11.Device1>();
d3dContext = device.ImmediateContext.QueryInterface <SharpDX.Direct3D11.DeviceContext1>();
var texture2d = tempSwapChain.GetBackBuffer <Texture2D>(0);
SharpDX.DXGI.Device2 dxgiDevice2 = device.QueryInterface <SharpDX.DXGI.Device2>();
SharpDX.DXGI.Adapter dxgiAdapter = dxgiDevice2.Adapter;
SharpDX.DXGI.Factory2 dxgiFactory2 = dxgiAdapter.GetParent <SharpDX.DXGI.Factory2>();
SharpDX.Direct2D1.Device d2dDevice = new SharpDX.Direct2D1.Device(dxgiDevice2);
d2dContext = new SharpDX.Direct2D1.DeviceContext(d2dDevice, SharpDX.Direct2D1.DeviceContextOptions.None);
SharpDX.Direct2D1.BitmapProperties1 properties = new SharpDX.Direct2D1.BitmapProperties1(
new SharpDX.Direct2D1.PixelFormat(SharpDX.DXGI.Format.B8G8R8A8_UNorm,
SharpDX.Direct2D1.AlphaMode.Premultiplied),
96, 96, SharpDX.Direct2D1.BitmapOptions.Target | SharpDX.Direct2D1.BitmapOptions.CannotDraw);
Surface backBuffer = tempSwapChain.GetBackBuffer <Surface>(0);
d2dTarget = new SharpDX.Direct2D1.Bitmap1(d2dContext, new Size2(800, 600), properties);
solidBrush = new SharpDX.Direct2D1.SolidColorBrush(d2dContext, Color.Coral);
// Create a linear gradient brush.
// Note that the StartPoint and EndPoint values are set as absolute coordinates of the surface you are drawing to,
// NOT the geometry we will apply the brush.
linearGradientBrush = new SharpDX.Direct2D1.LinearGradientBrush(d2dContext, new SharpDX.Direct2D1.LinearGradientBrushProperties()
{
StartPoint = new Vector2(50, 0),
EndPoint = new Vector2(450, 0),
},
new SharpDX.Direct2D1.GradientStopCollection(d2dContext, new SharpDX.Direct2D1.GradientStop[]
{
new SharpDX.Direct2D1.GradientStop()
{
Color = Color.Blue,
Position = 0,
},
new SharpDX.Direct2D1.GradientStop()
{
Color = Color.Green,
Position = 1,
}
}));
SharpDX.Direct2D1.RadialGradientBrushProperties rgb = new SharpDX.Direct2D1.RadialGradientBrushProperties()
{
Center = new Vector2(250, 525),
RadiusX = 100,
RadiusY = 100,
};
// Create a radial gradient brush.
// The center is specified in absolute coordinates, too.
radialGradientBrush = new SharpDX.Direct2D1.RadialGradientBrush(d2dContext, ref rgb
,
new SharpDX.Direct2D1.GradientStopCollection(d2dContext, new SharpDX.Direct2D1.GradientStop[]
{
new SharpDX.Direct2D1.GradientStop()
{
Color = Color.Yellow,
Position = 0,
},
new SharpDX.Direct2D1.GradientStop()
{
Color = Color.Red,
Position = 1,
}
}));
}
/// <summary>
/// Creates an <see cref="SharpDX.Direct2D1.RadialGradientBrush"/> that contains the specified gradient stops and has the specified transform and base opacity.
/// </summary>
/// <param name="renderTarget">an instance of <see cref = "SharpDX.Direct2D1.RenderTarget" /></param>
/// <param name="radialGradientBrushProperties">The center, gradient origin offset, and x-radius and y-radius of the brush's gradient.</param>
/// <param name="brushProperties">The transform and base opacity of the new brush, or NULL. If this value is NULL, the brush defaults to a base opacity of 1.0f and the identity matrix as its transformation.</param>
/// <param name="gradientStopCollection">A collection of <see cref="SharpDX.Direct2D1.GradientStop"/> structures that describe the colors in the brush's gradient and their locations along the gradient.</param>
/// <unmanaged>HRESULT CreateRadialGradientBrush([In] const D2D1_RADIAL_GRADIENT_BRUSH_PROPERTIES* radialGradientBrushProperties,[In, Optional] const D2D1_BRUSH_PROPERTIES* brushProperties,[In] ID2D1GradientStopCollection* gradientStopCollection,[Out] ID2D1RadialGradientBrush** radialGradientBrush)</unmanaged>
public RadialGradientBrush(RenderTarget renderTarget, ref SharpDX.Direct2D1.RadialGradientBrushProperties radialGradientBrushProperties, SharpDX.Direct2D1.BrushProperties?brushProperties, SharpDX.Direct2D1.GradientStopCollection gradientStopCollection) : base(IntPtr.Zero)
{
renderTarget.CreateRadialGradientBrush(ref radialGradientBrushProperties, brushProperties, gradientStopCollection, this);
}
/// <summary>
/// Creates an <see cref="SharpDX.Direct2D1.RadialGradientBrush"/> that contains the specified gradient stops and has the specified transform and base opacity.
/// </summary>
/// <param name="renderTarget">an instance of <see cref = "SharpDX.Direct2D1.RenderTarget" /></param>
/// <param name="radialGradientBrushProperties">The center, gradient origin offset, and x-radius and y-radius of the brush's gradient.</param>
/// <param name="brushProperties">The transform and base opacity of the new brush, or NULL. If this value is NULL, the brush defaults to a base opacity of 1.0f and the identity matrix as its transformation.</param>
/// <param name="gradientStopCollection">A collection of <see cref="SharpDX.Direct2D1.GradientStop"/> structures that describe the colors in the brush's gradient and their locations along the gradient.</param>
/// <unmanaged>HRESULT CreateRadialGradientBrush([In] const D2D1_RADIAL_GRADIENT_BRUSH_PROPERTIES* radialGradientBrushProperties,[In, Optional] const D2D1_BRUSH_PROPERTIES* brushProperties,[In] ID2D1GradientStopCollection* gradientStopCollection,[Out] ID2D1RadialGradientBrush** radialGradientBrush)</unmanaged>
public RadialGradientBrush(RenderTarget renderTarget, SharpDX.Direct2D1.RadialGradientBrushProperties radialGradientBrushProperties, SharpDX.Direct2D1.BrushProperties brushProperties, SharpDX.Direct2D1.GradientStopCollection gradientStopCollection)
: this(renderTarget, ref radialGradientBrushProperties, brushProperties, gradientStopCollection)
{
}
