Enum ImageFilterConfig 

#[non_exhaustive]
pub enum ImageFilterConfig {
    Direct(ImageFilter),
    Blur {
        sigma_x: f64,
        sigma_y: f64,
        bounded: bool,
    },
    Compose {
        outer: Rc<ImageFilterConfig>,
        inner: Rc<ImageFilterConfig>,
    },
}

A description of an ImageFilter that is resolved against an ImageFilterContext at paint time.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Direct(ImageFilter)

A configuration that always resolves to the given filter (Dart’s default constructor).

Blur

A Gaussian blur, optionally bounded to the render object’s bounds.

Fields

sigma_x: f64

The standard deviation along the horizontal axis.

sigma_y: f64

The standard deviation along the vertical axis.

bounded: bool

Whether the blur is confined to the context’s bounds.

Compose

outer applied to the result of inner; Dart’s ImageFilterConfig.compose.

Fields

outer: Rc<ImageFilterConfig>

The configuration that receives the filtered result of inner.

inner: Rc<ImageFilterConfig>

The configuration that receives the original input.

Implementations

impl ImageFilterConfig

pub const fn new(filter: ImageFilter) -> ImageFilterConfig

Creates a configuration that resolves to filter unchanged.

This is also how a inset_embedder::ColorFilter is wrapped, since Dart’s ColorFilter is itself a ui.ImageFilter: pass ImageFilter::Color(filter).

pub const fn blur() -> ImageFilterConfig

Creates a blur configuration; Dart’s named arguments are the setters.

pub fn compose( outer: ImageFilterConfig, inner: ImageFilterConfig, ) -> ImageFilterConfig

Composes the inner configuration with outer, to combine their effects.

Creates a single ImageFilterConfig that when applied, has the same effect as subsequently applying inner and outer, i.e. result = outer(inner(source)).

pub fn sigma_x(self, value: f64) -> ImageFilterConfig

Dart ImageFilterConfig.blur(sigmaX:).

pub fn sigma_y(self, value: f64) -> ImageFilterConfig

Dart ImageFilterConfig.blur(sigmaY:).

pub fn bounded(self, value: bool) -> ImageFilterConfig

Dart ImageFilterConfig.blur(bounded:).

pub fn resolve(&self, context: ImageFilterContext) -> ImageFilter

Resolves this configuration into an ImageFilter for the given context.

pub fn filter(&self) -> Option<&ImageFilter>

The filter this configuration was created from, for a direct configuration.

pub fn debug_short_description(&self) -> String

A short description for debugging.

Trait Implementations

impl Clone for ImageFilterConfig

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ImageFilterConfig

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

Formats the value using the given formatter.

impl Display for ImageFilterConfig

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

Formats the value using the given formatter.

impl PartialEq for ImageFilterConfig

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ImageFilterConfig