private static PipelineBuilder Start(IPipelineEffect effect)
{
switch (effect)
{
case BackdropEffect backdrop when backdrop.Source == AcrylicBackgroundSource.Backdrop:
return(PipelineBuilder.FromBackdrop());
case BackdropEffect backdrop when backdrop.Source == AcrylicBackgroundSource.HostBackdrop:
return(PipelineBuilder.FromHostBackdrop());
case SolidColorEffect color:
return(PipelineBuilder.FromColor(color.Color));
case ImageEffect image:
return(PipelineBuilder.FromImage(image.Uri, image.DpiMode, image.CacheMode));
case TileEffect tile:
return(PipelineBuilder.FromTiles(tile.Uri, tile.DpiMode, tile.CacheMode));
case AcrylicEffect acrylic when acrylic.Source == AcrylicBackgroundSource.Backdrop:
return(PipelineBuilder.FromBackdropAcrylic(acrylic.Tint, (float)acrylic.TintMix, (float)acrylic.BlurAmount, acrylic.TextureUri));
case AcrylicEffect acrylic when acrylic.Source == AcrylicBackgroundSource.HostBackdrop:
return(PipelineBuilder.FromHostBackdropAcrylic(acrylic.Tint, (float)acrylic.TintMix, acrylic.TextureUri));
default:
throw new ArgumentException($"Invalid initial pipeline effect: {effect.GetType()}");
}
}
/// <summary>
/// Appends an effect to an existing composition pipeline
/// </summary>
/// <param name="effect">The <see cref="IPipelineEffect"/> instance to append to the current pipeline</param>
/// <param name="builder">The target <see cref="PipelineBuilder"/> instance to modify</param>
/// <returns>The target <see cref="PipelineBuilder"/> instance in use</returns>
private static PipelineBuilder Append(IPipelineEffect effect, PipelineBuilder builder)
{
switch (effect)
{
case OpacityEffect opacity:
return(builder.Opacity((float)opacity.Value));
case LuminanceToAlphaEffect _:
return(builder.LuminanceToAlpha());
case InvertEffect _:
return(builder.Invert());
case GrayscaleEffect _:
return(builder.Grayscale());
case ExposureEffect exposure:
return(builder.Exposure((float)exposure.Value));
case SepiaEffect sepia:
return(builder.Sepia((float)sepia.Value));
case ShadeEffect shade:
return(builder.Shade(shade.Color, (float)shade.Intensity));
case HueRotationEffect hueRotation:
return(builder.HueRotation((float)hueRotation.Angle));
case TintEffect tint:
return(builder.Tint(tint.Color));
case TemperatureAndTintEffect temperatureAndTint:
return(builder.TemperatureAndTint((float)temperatureAndTint.Temperature, (float)temperatureAndTint.Tint));
case BlurEffect blur:
return(builder.Blur((float)blur.Value));
case SaturationEffect saturation:
return(builder.Saturation((float)saturation.Value));
case BlendEffect blend:
return(builder.Blend(Build(blend.Input), (BlendEffectMode)blend.Mode, blend.Placement));
default:
throw new ArgumentException($"Invalid pipeline effect: {effect.GetType()}");
}
}
