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137 lines
10 KiB
137 lines
10 KiB
// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using SixLabors.ImageSharp.PixelFormats;
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using SixLabors.ImageSharp.Processing.Processors.Drawing;
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using SixLabors.Primitives;
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namespace SixLabors.ImageSharp.Processing
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{
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/// <summary>
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/// Adds extensions that allow the drawing of images to the <see cref="Image{TPixel}"/> type.
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/// </summary>
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public static class DrawImageExtensions
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{
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/// <summary>
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/// Draws the given image together with the current one by blending their pixels.
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/// </summary>
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/// <typeparam name="TPixelDst">The pixel format of the destination image.</typeparam>
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/// <typeparam name="TPixelSrc">The pixel format of the source image.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="image">The image to blend with the currently processing image.</param>
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/// <param name="opacity">The opacity of the image to blend. Must be between 0 and 1.</param>
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/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
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public static IImageProcessingContext<TPixelDst> DrawImage<TPixelDst, TPixelSrc>(this IImageProcessingContext<TPixelDst> source, Image<TPixelSrc> image, float opacity)
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where TPixelDst : struct, IPixel<TPixelDst>
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where TPixelSrc : struct, IPixel<TPixelSrc>
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=> source.ApplyProcessor(new DrawImageProcessor<TPixelDst, TPixelSrc>(image, Point.Empty, GraphicsOptions.Default.ColorBlendingMode, GraphicsOptions.Default.AlphaCompositionMode, opacity));
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/// <summary>
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/// Draws the given image together with the current one by blending their pixels.
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/// </summary>
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/// <typeparam name="TPixelDst">The pixel format of the destination image.</typeparam>
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/// <typeparam name="TPixelSrc">The pixel format of the source image.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="image">The image to blend with the currently processing image.</param>
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/// <param name="colorBlending">The blending mode.</param>
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/// <param name="opacity">The opacity of the image to blend. Must be between 0 and 1.</param>
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/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
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public static IImageProcessingContext<TPixelDst> DrawImage<TPixelDst, TPixelSrc>(this IImageProcessingContext<TPixelDst> source, Image<TPixelSrc> image, PixelColorBlendingMode colorBlending, float opacity)
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where TPixelDst : struct, IPixel<TPixelDst>
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where TPixelSrc : struct, IPixel<TPixelSrc>
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=> source.ApplyProcessor(new DrawImageProcessor<TPixelDst, TPixelSrc>(image, Point.Empty, colorBlending, GraphicsOptions.Default.AlphaCompositionMode, opacity));
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/// <summary>
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/// Draws the given image together with the current one by blending their pixels.
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/// </summary>
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/// <typeparam name="TPixelDst">The pixel format of the destination image.</typeparam>
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/// <typeparam name="TPixelSrc">The pixel format of the source image.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="image">The image to blend with the currently processing image.</param>
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/// <param name="colorBlending">The color blending mode.</param>
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/// <param name="alphaComposition">The alpha composition mode.</param>
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/// <param name="opacity">The opacity of the image to blend. Must be between 0 and 1.</param>
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/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
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public static IImageProcessingContext<TPixelDst> DrawImage<TPixelDst, TPixelSrc>(this IImageProcessingContext<TPixelDst> source, Image<TPixelSrc> image, PixelColorBlendingMode colorBlending, PixelAlphaCompositionMode alphaComposition, float opacity)
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where TPixelDst : struct, IPixel<TPixelDst>
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where TPixelSrc : struct, IPixel<TPixelSrc>
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=> source.ApplyProcessor(new DrawImageProcessor<TPixelDst, TPixelSrc>(image, Point.Empty, colorBlending, alphaComposition, opacity));
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/// <summary>
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/// Draws the given image together with the current one by blending their pixels.
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/// </summary>
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/// <typeparam name="TPixelDst">The pixel format of the destination image.</typeparam>
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/// <typeparam name="TPixelSrc">The pixel format of the source image.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="image">The image to blend with the currently processing image.</param>
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/// <param name="options">The options, including the blending type and blending amount.</param>
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/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
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public static IImageProcessingContext<TPixelDst> DrawImage<TPixelDst, TPixelSrc>(this IImageProcessingContext<TPixelDst> source, Image<TPixelSrc> image, GraphicsOptions options)
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where TPixelDst : struct, IPixel<TPixelDst>
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where TPixelSrc : struct, IPixel<TPixelSrc>
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=> source.ApplyProcessor(new DrawImageProcessor<TPixelDst, TPixelSrc>(image, Point.Empty, options.ColorBlendingMode, options.AlphaCompositionMode, options.BlendPercentage));
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/// <summary>
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/// Draws the given image together with the current one by blending their pixels.
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/// </summary>
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/// <typeparam name="TPixelDst">The pixel format of the destination image.</typeparam>
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/// <typeparam name="TPixelSrc">The pixel format of the source image.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="image">The image to blend with the currently processing image.</param>
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/// <param name="location">The location to draw the blended image.</param>
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/// <param name="opacity">The opacity of the image to blend. Must be between 0 and 1.</param>
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/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
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public static IImageProcessingContext<TPixelDst> DrawImage<TPixelDst, TPixelSrc>(this IImageProcessingContext<TPixelDst> source, Image<TPixelSrc> image, Point location, float opacity)
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where TPixelDst : struct, IPixel<TPixelDst>
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where TPixelSrc : struct, IPixel<TPixelSrc>
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=> source.ApplyProcessor(new DrawImageProcessor<TPixelDst, TPixelSrc>(image, location, GraphicsOptions.Default.ColorBlendingMode, GraphicsOptions.Default.AlphaCompositionMode, opacity));
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/// <summary>
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/// Draws the given image together with the current one by blending their pixels.
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/// </summary>
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/// <typeparam name="TPixelDst">The pixel format of the destination image.</typeparam>
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/// <typeparam name="TPixelSrc">The pixel format of the source image.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="image">The image to blend with the currently processing image.</param>
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/// <param name="location">The location to draw the blended image.</param>
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/// <param name="colorBlending">The color blending to apply.</param>
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/// <param name="opacity">The opacity of the image to blend. Must be between 0 and 1.</param>
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/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
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public static IImageProcessingContext<TPixelDst> DrawImage<TPixelDst, TPixelSrc>(this IImageProcessingContext<TPixelDst> source, Image<TPixelSrc> image, Point location, PixelColorBlendingMode colorBlending, float opacity)
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where TPixelDst : struct, IPixel<TPixelDst>
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where TPixelSrc : struct, IPixel<TPixelSrc>
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=> source.ApplyProcessor(new DrawImageProcessor<TPixelDst, TPixelSrc>(image, location, colorBlending, GraphicsOptions.Default.AlphaCompositionMode, opacity));
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/// <summary>
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/// Draws the given image together with the current one by blending their pixels.
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/// </summary>
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/// <typeparam name="TPixelDst">The pixel format of the destination image.</typeparam>
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/// <typeparam name="TPixelSrc">The pixel format of the source image.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="image">The image to blend with the currently processing image.</param>
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/// <param name="location">The location to draw the blended image.</param>
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/// <param name="colorBlending">The color blending to apply.</param>
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/// <param name="alphaComposition">The alpha composition mode.</param>
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/// <param name="opacity">The opacity of the image to blend. Must be between 0 and 1.</param>
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/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
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public static IImageProcessingContext<TPixelDst> DrawImage<TPixelDst, TPixelSrc>(this IImageProcessingContext<TPixelDst> source, Image<TPixelSrc> image, Point location, PixelColorBlendingMode colorBlending, PixelAlphaCompositionMode alphaComposition, float opacity)
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where TPixelDst : struct, IPixel<TPixelDst>
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where TPixelSrc : struct, IPixel<TPixelSrc>
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=> source.ApplyProcessor(new DrawImageProcessor<TPixelDst, TPixelSrc>(image, location, colorBlending, alphaComposition, opacity));
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/// <summary>
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/// Draws the given image together with the current one by blending their pixels.
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/// </summary>
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/// <typeparam name="TPixelDst">The pixel format of the destination image.</typeparam>
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/// <typeparam name="TPixelSrc">The pixel format of the source image.</typeparam>
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/// <param name="source">The image this method extends.</param>
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/// <param name="image">The image to blend with the currently processing image.</param>
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/// <param name="location">The location to draw the blended image.</param>
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/// <param name="options">The options containing the blend mode and opacity.</param>
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/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
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public static IImageProcessingContext<TPixelDst> DrawImage<TPixelDst, TPixelSrc>(this IImageProcessingContext<TPixelDst> source, Image<TPixelSrc> image, Point location, GraphicsOptions options)
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where TPixelDst : struct, IPixel<TPixelDst>
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where TPixelSrc : struct, IPixel<TPixelSrc>
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=> source.ApplyProcessor(new DrawImageProcessor<TPixelDst, TPixelSrc>(image, location, options.ColorBlendingMode, options.AlphaCompositionMode, options.BlendPercentage));
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}
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}
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