public static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
Size size = ctx.GetCurrentSize();
IPathCollection corners = BuildCorners(size.Width, size.Height, cornerRadius);
ctx.SetGraphicsOptions(new GraphicsOptions()
{
Antialias = true,
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut
});
return(ctx.Fill(Color.Red, corners));
}
// https://github.com/SixLabors/Samples/blob/master/ImageSharp/AvatarWithRoundedCorner/Program.cs
public static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
Size size = ctx.GetCurrentSize();
IPathCollection corners = BuildCorners(size.Width, size.Height, cornerRadius);
ctx.SetGraphicsOptions(new GraphicsOptions()
{
Antialias = true,
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut // enforces that any part of this shape that has color is punched out of the background
});
foreach (var c in corners)
{
ctx = ctx.Fill(SixLabors.ImageSharp.Color.Red, c);
}
return(ctx);
}
// This method can be seen as an inline implementation of an `IImageProcessor`:
// (The combination of `IImageOperations.Apply()` + this could be replaced with an `IImageProcessor`)
private static IImageProcessingContext ApplyRoundedCorners(this IImageProcessingContext ctx, float cornerRadius)
{
Size size = ctx.GetCurrentSize();
IPathCollection corners = BuildCorners(size.Width, size.Height, cornerRadius);
ctx.SetGraphicsOptions(new GraphicsOptions()
{
Antialias = true,
AlphaCompositionMode = PixelAlphaCompositionMode.DestOut // enforces that any part of this shape that has color is punched out of the background
});
// mutating in here as we already have a cloned original
// use any color (not Transparent), so the corners will be clipped
foreach (var c in corners)
{
ctx = ctx.Fill(Color.Red, c);
}
return(ctx);
}
