Jason DoveandGitHub
a6b01cbe28
* use skiasharp in graphics engine * start to use richtextkit * move out some template functions * move files * add base graphics element * use default style in text element * support partial styling in text element * fix static images * load fonts from text element definition
46 lines
1.9 KiB
C#
46 lines
1.9 KiB
C#
using ErsatzTV.Core.Domain;
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using ErsatzTV.FFmpeg.State;
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using SkiaSharp;
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namespace ErsatzTV.Infrastructure.Streaming.Graphics;
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public abstract class GraphicsElement : IGraphicsElement
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{
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public int ZIndex { get; protected set; }
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public bool IsFailed { get; set; }
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public abstract Task InitializeAsync(Resolution squarePixelFrameSize, Resolution frameSize, int frameRate,
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CancellationToken cancellationToken);
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public abstract ValueTask<Option<PreparedElementImage>> PrepareImage(TimeSpan timeOfDay, TimeSpan contentTime, TimeSpan contentTotalTime, TimeSpan channelTime,
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CancellationToken cancellationToken);
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protected static SKPointI CalculatePosition(
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WatermarkLocation location,
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int frameWidth,
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int frameHeight,
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int imageWidth,
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int imageHeight,
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int horizontalMargin,
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int verticalMargin)
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{
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return location switch
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{
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WatermarkLocation.BottomLeft => new SKPointI(horizontalMargin, frameHeight - imageHeight - verticalMargin),
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WatermarkLocation.TopLeft => new SKPointI(horizontalMargin, verticalMargin),
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WatermarkLocation.TopRight => new SKPointI(frameWidth - imageWidth - horizontalMargin, verticalMargin),
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WatermarkLocation.TopMiddle => new SKPointI((frameWidth - imageWidth) / 2, verticalMargin),
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WatermarkLocation.RightMiddle => new SKPointI(
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frameWidth - imageWidth - horizontalMargin,
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(frameHeight - imageHeight) / 2),
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WatermarkLocation.BottomMiddle => new SKPointI(
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(frameWidth - imageWidth) / 2,
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frameHeight - imageHeight - verticalMargin),
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WatermarkLocation.LeftMiddle => new SKPointI(horizontalMargin, (frameHeight - imageHeight) / 2),
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_ => new SKPointI(
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frameWidth - imageWidth - horizontalMargin,
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frameHeight - imageHeight - verticalMargin),
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};
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}
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} |