Unigram/Telegram.Native/PlaceholderImageHelper.idl at develop · UnigramDev/Unigram · GitHub

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import "SurfaceImage.idl";
import "TextFormat.idl";

namespace Telegram.Native
{
	[default_interface]
	runtimeclass PlaceholderImageHelper
	{
		static PlaceholderImageHelper Current{ get; };

		static void WriteBytes(Windows.Foundation.Collections.IVector<byte> hash, Windows.Storage.Streams.IRandomAccessStream randomAccessStream);
		static Windows.Storage.Streams.IBuffer DrawWebP(String fileName, Int32 maxWidth, out Int32 pixelWidth, out Int32 pixelHeight);
		static Boolean IsWebP(String fileName, out Int32 pixelWidth, out Int32 pixelHeight);

		void Encode(Windows.Storage.Streams.IBuffer source, Windows.Storage.Streams.IRandomAccessStream destination, Int32 width, Int32 height);

		Windows.Foundation.IAsyncAction DrawSvgAsync(String path, Windows.UI.Color foreground, Windows.Storage.Streams.IRandomAccessStream randomAccessStream, Double dpi);
		void DrawSvg(String path, Windows.UI.Color foreground, Windows.Storage.Streams.IRandomAccessStream randomAccessStream, Double dpi, out Windows.Foundation.Size size);

		[default_overload]
		void DrawThumbnailPlaceholder(String fileName, Single blurAmount, Windows.Storage.Streams.IRandomAccessStream randomAccessStream);
		void DrawThumbnailPlaceholder(Windows.Foundation.Collections.IVector<byte> bytes, Single blurAmount, Windows.Storage.Streams.IRandomAccessStream randomAccessStream);
		void DrawThumbnailPlaceholder(Windows.Foundation.Collections.IVector<byte> bytes, Single blurAmount, Windows.Storage.Streams.IBuffer randomAccessStream);

		SurfaceImage Create(Int32 pixelWidth, Int32 pixelHeight);
		void Invalidate(SurfaceImage imageSource, Windows.Storage.Streams.IBuffer buffer);

		TextFormat CreateTextFormat2(String text, Windows.Foundation.Collections.IVector<Telegram.Td.Api.TextEntity> entities, Double fontSize, Double width);

		Windows.Foundation.Numerics.Vector2 ContentEnd(String text, Windows.Foundation.Collections.IVector<Telegram.Td.Api.TextEntity> entities, Double fontSize, Double width);
		Windows.Foundation.Collections.IVector<Windows.Foundation.Rect> LineMetrics(String text, Windows.Foundation.Collections.IVector<Telegram.Td.Api.TextEntity> entities, Double fontSize, Double width, Boolean rtl);
		Windows.Foundation.Collections.IVector<Windows.Foundation.Rect> RangeMetrics(String text, Int32 offset, Int32 length, Windows.Foundation.Collections.IVector<Telegram.Td.Api.TextEntity> entities, Double fontSize, Double width, Boolean rtl);
		Int32 TrimMetrics(String text, Int32 offset, Int32 length, Windows.Foundation.Collections.IVector<Telegram.Td.Api.TextEntity> entities, Double fontSize, Double width, Double height, Boolean rtl);
		//Windows.Foundation.Collections.IVector<Windows.Foundation.Rect> EntityMetrics(String text, Windows.Foundation.Collections.IVector<Telegram.Td.Api.TextEntity> entities, Double fontSize, Double width, Boolean rtl);
	}
} // namespace Telegram.Native