public LinearGradientBrushImpl(Perspex.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;
}
public LinearGradientBrushImpl(
Perspex.Media.LinearGradientBrush brush,
SharpDX.Direct2D1.RenderTarget target,
Size destinationSize)
{
if (brush != null)
{
var gradientStops = brush.GradientStops.Select(s => new SharpDX.Direct2D1.GradientStop {
Color = s.Color.ToDirect2D(), Position = (float)s.Offset
}).ToArray();
Point startPoint = new Point(0, 0);
Point endPoint = new Point(0, 0);
switch (brush.MappingMode)
{
case Perspex.Media.BrushMappingMode.Absolute:
// TODO:
break;
case Perspex.Media.BrushMappingMode.RelativeToBoundingBox:
startPoint = new Point(brush.StartPoint.X * destinationSize.Width, brush.StartPoint.Y * destinationSize.Height);
endPoint = new Point(brush.EndPoint.X * destinationSize.Width, brush.EndPoint.Y * destinationSize.Height);
break;
}
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 = target.Transform
},
new SharpDX.Direct2D1.GradientStopCollection(target, gradientStops, brush.SpreadMethod.ToDirect2D())
);
}
}
public LinearGradientBrushImpl(
Perspex.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 = SharpDX.Matrix3x2.Identity,
},
stops);
}
}
public LinearGradientBrushImpl(
Perspex.Media.LinearGradientBrush brush,
SharpDX.Direct2D1.RenderTarget target,
Size destinationSize)
{
var gradientStops = brush.GradientStops.Select(s => new SharpDX.Direct2D1.GradientStop {
Color = s.Color.ToDirect2D(), Position = (float)s.Offset
}).ToArray();
Point startPoint = brush.StartPoint.ToPixels(destinationSize);
Point endPoint = brush.EndPoint.ToPixels(destinationSize);
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 = target.Transform
},
new SharpDX.Direct2D1.GradientStopCollection(target, gradientStops, brush.SpreadMethod.ToDirect2D())
);
}
