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($"Invalid initial pipeline effect: {effect.GetType()}");
}
}
/// <inheritdoc/>
protected override object ProvideValue()
{
return(BackgroundSource switch
{
AcrylicBackgroundSource.Backdrop => PipelineBuilder.FromBackdrop(),
AcrylicBackgroundSource.HostBackdrop => PipelineBuilder.FromHostBackdrop(),
_ => throw new ArgumentException($"Invalid source for backdrop effect: {BackgroundSource}")
});
public override PipelineBuilder AppendToBuilder(PipelineBuilder builder)
{
PipelineBuilder inputBuilder = Source ?? PipelineBuilder.FromBackdrop();
foreach (IPipelineEffect effect in Effects)
{
inputBuilder = effect.AppendToBuilder(inputBuilder);
}
return(builder.Blend(inputBuilder, (BlendEffectMode)Mode, Placement));
}
/// <inheritdoc/>
protected override PipelineBuilder OnBrushRequested()
{
PipelineBuilder builder = Source ?? PipelineBuilder.FromBackdrop();
foreach (IPipelineEffect effect in Effects)
{
builder = effect.AppendToPipeline(builder);
}
return(builder);
}
/// <inheritdoc/>
protected override PipelineBuilder OnBrushRequested()
{
return(PipelineBuilder.FromBackdrop().Invert());
}