Filter class

CSS filter effects let you define a way of processing an element's rendering before the element is displayed in the document. Examples of such effects include blurring and changing the intensity of the color of an element.

Read more: MDN CSS Filter Effects

Constructors

Filter.blur([Unit length])

Creates a blur filter function that applies a Gaussian blur to the input image.

const

factory

Filter.brightness([double percentage])

Creates a brightness filter function that applies a linear multiplier value on an element or an input image, making the image appear brighter or darker.

const

factory

Filter.contrast([double percentage])

Creates a contrast filter function that adjusts the contrast of the input image.

const

factory

Filter.dropShadow({required Unit offsetX, required Unit offsetY, Unit? spread, Color? color})

Creates a drop-shadow filter function that applies a drop shadow effect to the input image.

const

factory

Filter.grayscale([double percentage])

Creates a grayscale filter function that converts the input image to grayscale.

const

factory

Filter.hueRotate([Angle angle])

Creates a hue-rotate filter function that rotates the hue of an element and its contents.

const

factory

Filter.invert([double percentage])

Creates an invert filter function that inverts the colors of the input image.

const

factory

Filter.list(List<Filter> filterValues)

Combines multiple filter functions into a single filter value.

const

factory

Filter.opacity([double percentage])

Creates an opacity filter function that applies transparency to the samples in the input image

const

factory

Filter.saturate([double percentage])

Creates a saturate filter function that super-saturates or desaturates the input image.

const

factory

Filter.sepia([double percentage])

Creates a sepia filter function that applies a sepia filter to the input image, giving it a warm, brownish tone.

const

factory

Filter.url(String url)

Creates a url filter function that references an SVG filter element.

const

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → String

The css value

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

inherit → const Filter

initial → const Filter

none → const Filter

revert → const Filter

revertLayer → const Filter

unset → const Filter