void Gradient_Generate(List <Fade.FadeInfo> points)
{
if (Program.Project.IsDisposing)
{
return;
}
fullFade = points;
LinearGradientBrush gradient = (LinearGradientBrush)Gradient.Fill;
Dispatcher.UIThread.InvokeAsync(() => {
gradient.GradientStops.Clear();
if (_fade == null)
{
return;
}
for (int i = 0; i < points.Count; i++)
{
if (i > 0 && points[i - 1].IsHold)
{
gradient.GradientStops.Add(new GradientStop(points[i - 1].Color.ToAvaloniaColor(), (points[i].Time - .0000000001) / (_fade.Time * _fade.Gate)));
}
gradient.GradientStops.Add(new GradientStop(points[i].Color.ToAvaloniaColor(), points[i].Time / (_fade.Time * _fade.Gate)));
}
});
}
public LinearGradientBrushImpl(Avalonia.Media.LinearGradientBrush brush, Size destinationSize)
{
var start = brush.StartPoint.ToPixels(destinationSize);
var end = brush.EndPoint.ToPixels(destinationSize);
this.PlatformBrush = new LinearGradient(start.X, start.Y, end.X, end.Y);
foreach (var stop in brush.GradientStops)
{
((LinearGradient)this.PlatformBrush).AddColorStop(stop.Offset, stop.Color.ToCairo());
}
((LinearGradient)this.PlatformBrush).Extend = Extend.Pad;
}
/// <summary>
/// Initializes a new instance of the <see cref="LinearGradientBrushImpl"/> class.
/// </summary>
/// <param name="brush"></param>
/// <param name="target"></param>
/// <param name="destinationSize"></param>
public LinearGradientBrushImpl(
Avalonia.Media.LinearGradientBrush brush,
SharpDX.Direct2D1.RenderTarget target,
Size destinationSize)
{
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 startPoint = brush.StartPoint.ToPixels(destinationSize);
var endPoint = brush.EndPoint.ToPixels(destinationSize);
using (var stops = new SharpDX.Direct2D1.GradientStopCollection(
target,
gradientStops,
brush.SpreadMethod.ToDirect2D()))
{
PlatformBrush = new SharpDX.Direct2D1.LinearGradientBrush(
target,
new SharpDX.Direct2D1.LinearGradientBrushProperties
{
StartPoint = startPoint.ToSharpDX(),
EndPoint = endPoint.ToSharpDX()
},
new SharpDX.Direct2D1.BrushProperties
{
Opacity = (float)brush.Opacity,
Transform = PrimitiveExtensions.Matrix3x2Identity,
},
stops);
}
}
