/// <summary>
/// Applies a radial vignette effect to an image.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="color">The color to set as the vignette.</param>
/// <param name="radiusX">The the x-radius.</param>
/// <param name="radiusY">The the y-radius.</param>
/// <param name="rectangle">
/// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter.
/// </param>
/// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
public static IImageProcessingContext Vignette(
this IImageProcessingContext source,
Color color,
float radiusX,
float radiusY,
Rectangle rectangle) =>
source.Vignette(source.GetGraphicsOptions(), color, radiusX, radiusY, rectangle);
/// <summary>
/// Sets the default options against the image processing context.
/// </summary>
/// <param name="context">The image processing context to store default against.</param>
/// <param name="optionsBuilder">The action to update instance of the default options used.</param>
/// <returns>The passed in <paramref name="context"/> to allow chaining.</returns>
public static IImageProcessingContext SetGraphicsOptions(this IImageProcessingContext context, Action <GraphicsOptions> optionsBuilder)
{
var cloned = context.GetGraphicsOptions().DeepClone();
optionsBuilder(cloned);
context.Properties[typeof(GraphicsOptions)] = cloned;
return(context);
}
/// <summary>
/// Draws the given image together with the current one by blending their pixels.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="image">The image to blend with the currently processing image.</param>
/// <param name="colorBlending">The blending mode.</param>
/// <param name="opacity">The opacity of the image to blend. Must be between 0 and 1.</param>
/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
public static IImageProcessingContext DrawImage(
this IImageProcessingContext source,
Image image,
PixelColorBlendingMode colorBlending,
float opacity) =>
source.ApplyProcessor(
new DrawImageProcessor(
image,
Point.Empty,
colorBlending,
source.GetGraphicsOptions().AlphaCompositionMode,
opacity));
/// <summary>
/// Draws the given image together with the current one by blending their pixels.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="image">The image to blend with the currently processing image.</param>
/// <param name="opacity">The opacity of the image to blend. Must be between 0 and 1.</param>
/// <returns>The <see cref="Image{TPixelDst}"/>.</returns>
public static IImageProcessingContext DrawImage(
this IImageProcessingContext source,
Image image,
float opacity)
{
var options = source.GetGraphicsOptions();
return(source.ApplyProcessor(
new DrawImageProcessor(
image,
Point.Empty,
options.ColorBlendingMode,
options.AlphaCompositionMode,
opacity)));
}
private void SetGraphicsOptions(IImageProcessingContext context)
{
context.GetGraphicsOptions().Antialias = true;
context.GetShapeGraphicsOptions().GraphicsOptions.Antialias = true;
}
/// <summary> /// Gets the default shape processing options against the image processing context. /// </summary> /// <param name="context">The image processing context to retrieve defaults from.</param> /// <returns>The globaly configued default options.</returns> public static TextGraphicsOptions GetTextGraphicsOptions(this IImageProcessingContext context) => new TextGraphicsOptions(context.GetGraphicsOptions(), context.GetTextOptions());
/// <summary> /// Alters the colors of the image recreating an old Polaroid camera effect. /// </summary> /// <param name="source">The image this method extends.</param> /// <param name="rectangle"> /// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter. /// </param> /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns> public static IImageProcessingContext Polaroid(this IImageProcessingContext source, Rectangle rectangle) => source.ApplyProcessor(new PolaroidProcessor(source.GetGraphicsOptions()), rectangle);
/// <summary> /// Alters the colors of the image recreating an old Lomograph camera effect. /// </summary> /// <param name="source">The image this method extends.</param> /// <param name="rectangle"> /// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter. /// </param> /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns> public static IImageProcessingContext Lomograph(this IImageProcessingContext source, Rectangle rectangle) => source.ApplyProcessor(new LomographProcessor(source.GetGraphicsOptions()), rectangle);
/// <summary> /// Applies a radial vignette effect to an image. /// </summary> /// <param name="source">The image this method extends.</param> /// <param name="rectangle"> /// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter. /// </param> /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns> public static IImageProcessingContext Vignette(this IImageProcessingContext source, Rectangle rectangle) => Vignette(source, source.GetGraphicsOptions(), rectangle);
/// <summary>
/// Applies a radial vignette effect to an image.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="radiusX">The the x-radius.</param>
/// <param name="radiusY">The the y-radius.</param>
/// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
public static IImageProcessingContext Vignette(
this IImageProcessingContext source,
float radiusX,
float radiusY) =>
Vignette(source, source.GetGraphicsOptions(), radiusX, radiusY);
/// <summary> /// Applies a radial vignette effect to an image. /// </summary> /// <param name="source">The image this method extends.</param> /// <param name="color">The color to set as the vignette.</param> /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns> public static IImageProcessingContext Vignette(this IImageProcessingContext source, Color color) => Vignette(source, source.GetGraphicsOptions(), color);
/// <summary> /// Gets the default shape processing options against the image processing context. /// </summary> /// <param name="context">The image processing context to retrieve defaults from.</param> /// <returns>The globaly configued default options.</returns> public static ShapeGraphicsOptions GetShapeGraphicsOptions(this IImageProcessingContext context) => new ShapeGraphicsOptions(context.GetGraphicsOptions(), context.GetShapeOptions());
/// <summary>
/// Applies a radial glow effect to an image.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="color">The color to set as the glow.</param>
/// <param name="radius">The the radius.</param>
/// <param name="rectangle">
/// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter.
/// </param>
/// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
public static IImageProcessingContext Glow(
this IImageProcessingContext source,
Color color,
float radius,
Rectangle rectangle) =>
source.Glow(source.GetGraphicsOptions(), color, ValueSize.Absolute(radius), rectangle);
/// <summary> /// Applies a radial glow effect to an image. /// </summary> /// <param name="source">The image this method extends.</param> /// <param name="rectangle"> /// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter. /// </param> /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns> public static IImageProcessingContext Glow(this IImageProcessingContext source, Rectangle rectangle) => source.Glow(source.GetGraphicsOptions(), rectangle);
/// <summary> /// Applies a radial glow effect to an image. /// </summary> /// <param name="source">The image this method extends.</param> /// <param name="radius">The the radius.</param> /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns> public static IImageProcessingContext Glow(this IImageProcessingContext source, float radius) => Glow(source, source.GetGraphicsOptions(), radius);
/// <summary>
/// Applies a radial glow effect to an image.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="color">The color to set as the glow.</param>
/// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
public static IImageProcessingContext Glow(this IImageProcessingContext source, Color color)
{
return(Glow(source, source.GetGraphicsOptions(), color));
}
/// <summary> /// Applies a radial glow effect to an image. /// </summary> /// <param name="source">The image this method extends.</param> /// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns> public static IImageProcessingContext Glow(this IImageProcessingContext source) => Glow(source, source.GetGraphicsOptions());
/// <summary>
/// Flood fills the image with the specified brush.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="brush">The details how to fill the region of interest.</param>
/// <returns>The <see cref="Image{TPixel}"/>.</returns>
public static IImageProcessingContext Fill(this IImageProcessingContext source, IBrush brush) =>
source.Fill(source.GetGraphicsOptions(), brush);
/// <summary>
/// Replaces the background color of image with the given one.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="color">The color to set as the background.</param>
/// <param name="rectangle">
/// The <see cref="Rectangle"/> structure that specifies the portion of the image object to alter.
/// </param>
/// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
public static IImageProcessingContext BackgroundColor(
this IImageProcessingContext source,
Color color,
Rectangle rectangle) =>
BackgroundColor(source, source.GetGraphicsOptions(), color, rectangle);
