Enum ImageFilter 

pub enum ImageFilter {
    Blur {
        sigma_x: f64,
        sigma_y: f64,
        bounds: Option<Rect>,
    },
    Color(ColorFilter),
    Compose {
        outer: Rc<ImageFilter>,
        inner: Rc<ImageFilter>,
    },
}

A filter operation to apply to a raster image.

See also:

• BackdropFilter, a widget that applies ImageFilter to its rendering.
• ImageFiltered, a widget that applies ImageFilter to its children.
• SceneBuilder.pushBackdropFilter, which is the low-level API for using this class as a backdrop filter.
• SceneBuilder.pushImageFilter, which is the low-level API for using this class as a child layer filter.

Variants

Blur

A Gaussian blur; Dart’s _GaussianBlurImageFilter.

Fields

sigma_x: f64

The standard deviation along the horizontal axis.

sigma_y: f64

The standard deviation along the vertical axis.

bounds: Option<Rect>

The area the blur is confined to, when given.

Color(ColorFilter)

A ColorFilter used as an image filter; Dart’s ColorFilter implements ImageFilter.

Compose

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

Fields

outer: Rc<ImageFilter>

The filter that receives the filtered result of inner.

inner: Rc<ImageFilter>

The filter that receives the original input.

Implementations

impl ImageFilter

pub const fn blur(sigma_x: f64, sigma_y: f64) -> ImageFilter

Creates an image filter that applies a Gaussian blur.

pub fn bounds(self, bounds: Rect) -> ImageFilter

Dart ImageFilter.blur(bounds:).

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

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

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

pub fn debug_short_description(&self) -> String

Dart’s debugShortDescription.

impl ImageFilter

pub fn to_valo(&self) -> ImageFilter

The valo filter that replays this one, step for step and in the same order.

Trait Implementations

impl Clone for ImageFilter

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 ImageFilter

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

Formats the value using the given formatter.

impl Display for ImageFilter

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

Formats the value using the given formatter.

impl PartialEq for ImageFilter

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ImageFilter