/// <summary>
/// Initializes a new instance of the <see cref="ImmutableRadialGradientBrush"/> class.
/// </summary>
/// <param name="source">The brush from which this brush's properties should be copied.</param>
public ImmutableRadialGradientBrush(IRadialGradientBrush source)
: base(source)
{
Center = source.Center;
GradientOrigin = source.GradientOrigin;
Radius = source.Radius;
}
protected override void CreateResources()
{
_sceneBrush = RenderTarget.CreateSolidColorBrush(Color.Black);
// Background grid brush
var bitmapTarget = RenderTarget.CreateCompatibleRenderTarget(new SizeF(10, 10));
var gridBrush = bitmapTarget.CreateSolidColorBrush(new ColorF(.93f, .94f, .96f));
bitmapTarget.BeginDraw();
bitmapTarget.FillRectangle(RectangleF.FromLTRB(0, 0, 10, 1), gridBrush);
bitmapTarget.FillRectangle(RectangleF.FromLTRB(0, 0, 1, 10), gridBrush);
bitmapTarget.EndDraw().ThrowIfFailed();
IBitmap bitmap = bitmapTarget.GetBitmap();
_gridPatternBrush = RenderTarget.CreateBitmapBrush(bitmap, new BitmapBrushProperties(ExtendMode.Wrap, ExtendMode.Wrap));
// Gradient brush
Span <GradientStop> stops = stackalloc[]
{
new GradientStop(0.0f, Color.Gold),
new GradientStop(0.85f, new ColorF(Color.Orange, 0.8f)),
new GradientStop(1.0f, new ColorF(Color.OrangeRed, 0.7f))
};
_radialGradientBrush = RenderTarget.CreateRadialGradientBrush(
new RadialGradientBrushProperties(new PointF(330, 330), new PointF(140, 140), 140, 140),
RenderTarget.CreateGradienStopCollection(stops));
}
public RadialGradientBrushImpl(IRadialGradientBrush brush, Size destinationSize)
{
var center = brush.Center.ToPixels(destinationSize);
var gradientOrigin = brush.GradientOrigin.ToPixels(destinationSize);
var radius = brush.Radius;
this.PlatformBrush = new RadialGradient(center.X, center.Y, radius, gradientOrigin.X, gradientOrigin.Y, radius);
foreach (var stop in brush.GradientStops)
{
((RadialGradient)this.PlatformBrush).AddColorStop(stop.Offset, stop.Color.ToCairo());
}
((RadialGradient)this.PlatformBrush).Extend = Extend.Pad;
}
public RadialGradientBrushImpl(
IRadialGradientBrush brush,
SharpDX.Direct2D1.RenderTarget target,
Rect destinationRect)
{
if (brush.GradientStops.Count == 0)
{
return;
}
var gradientStops = brush.GradientStops.Select(s => new SharpDX.Direct2D1.GradientStop
{
Color = s.Color.ToDirect2D(),
Position = (float)s.Offset
}).ToArray();
var position = destinationRect.Position;
var centerPoint = position + brush.Center.ToPixels(destinationRect.Size);
var gradientOrigin = position + brush.GradientOrigin.ToPixels(destinationRect.Size) - centerPoint;
// Note: Direct2D supports RadiusX and RadiusY but Cairo backend supports only Radius property
var radiusX = brush.Radius * destinationRect.Width;
var radiusY = brush.Radius * destinationRect.Height;
using (var stops = new SharpDX.Direct2D1.GradientStopCollection(
target,
gradientStops,
brush.SpreadMethod.ToDirect2D()))
{
PlatformBrush = new SharpDX.Direct2D1.RadialGradientBrush(
target,
new SharpDX.Direct2D1.RadialGradientBrushProperties
{
Center = centerPoint.ToSharpDX(),
GradientOriginOffset = gradientOrigin.ToSharpDX(),
RadiusX = (float)radiusX,
RadiusY = (float)radiusY
},
new SharpDX.Direct2D1.BrushProperties
{
Opacity = (float)brush.Opacity,
Transform = PrimitiveExtensions.Matrix3x2Identity,
},
stops);
}
}
protected override void CreateResources()
{
base.CreateResources();
// Gradient brush
Span <GradientStop> stops = stackalloc[]
{
new GradientStop(0.0f, Color.Gold),
new GradientStop(0.85f, new ColorF(Color.Orange, 0.8f)),
new GradientStop(1.0f, new ColorF(Color.OrangeRed, 0.7f))
};
_radialGradientBrush = RenderTarget.CreateRadialGradientBrush(
new RadialGradientBrushProperties(new PointF(330, 330), new PointF(140, 140), 140, 140),
RenderTarget.CreateGradienStopCollection(stops));
_textRenderer = new CustomTextRenderer(Direct2dFactory, RenderTarget, _blackBrush, _radialGradientBrush);
}
public static IRadialGradientBrush CreateRef(this IRadialGradientBrush objectRef) => ((IRadialGradientBrush)objectRef.CreateRef(typeof(IRadialGradientBrush)));
