Enum BlendMode

pub enum BlendMode {
    Over,
    Multiply,
    Screen,
    Overlay,
    Darken,
    Lighten,
    ColorDodge,
    ColorBurn,
    HardLight,
    SoftLight,
    Difference,
    Exclusion,
    Hue,
    Saturation,
    Color,
    Luminosity,
}

Raster blend mode. See https://www.w3.org/TR/compositing/#blending for more details.

Variants

Over

Normal. Source is placed over the destination.

Multiply

The source color is multiplied by the destination color and replaces the destination.

Screen

Multiplies the complements of the backdrop and source color values, then complements the result.

Overlay

Multiplies or screens the colors, depending on the backdrop color value.

Darken

Selects the darker of the backdrop and source colors.

Lighten

Selects the lighter of the backdrop and source colors.

ColorDodge

Brightens the backdrop color to reflect the source color. Painting with black produces no changes.

ColorBurn

Darkens the backdrop color to reflect the source color. Painting with white produces no change.

HardLight

Multiplies or screens the colors, depending on the source color value. The effect is similar to shining a harsh spotlight on the backdrop.

SoftLight

Darkens or lightens the colors, depending on the source color value. The effect is similar to shining a diffused spotlight on the backdrop.

Difference

Subtracts the darker of the two constituent colors from the lighter color.

Exclusion

Produces an effect similar to that of the Difference mode but lower in contrast. Painting with white inverts the backdrop color; painting with black produces no change.

Hue

Creates a color with the hue of the source color and the saturation and luminosity of the backdrop color.

Saturation

Creates a color with the saturation of the source color and the hue and luminosity of the backdrop color. Painting with this mode in an area of the backdrop that is a pure gray (no saturation) produces no change.

Color

Creates a color with the hue and saturation of the source color and the luminosity of the backdrop color. This preserves the gray levels of the backdrop and is useful for coloring monochrome images or tinting color images.

Luminosity

Creates a color with the luminosity of the source color and the hue and saturation of the backdrop color. This produces an inverse effect to that of the Color mode.

Trait Implementations

impl Clone for BlendMode

fn clone(&self) -> BlendMode

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BlendMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for BlendMode

fn eq(&self, other: &BlendMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for BlendMode

impl StructuralPartialEq for BlendMode