StacGradient class

A Stac representation of gradients for visual effects.

This class supports linear, radial, and sweep gradients with customizable colors, stops, and positioning. Gradients can be used for backgrounds, text styling, and other visual effects.

{@tool snippet} Dart Example:

StacLinearGradient(
  colors: [StacColors.blue, StacColors.red],
  stops: [0.0, 1.0],
  begin: StacAlignment.topLeft,
  end: StacAlignment.bottomRight,
)

{@end-tool}

{@tool snippet} JSON Example:

{
  "gradientType": "linear",
  "colors": ["#2196F3", "#F44336"],
  "stops": [0.0, 1.0],
  "begin": "topLeft",
  "end": "bottomRight"
}

{@end-tool}

Annotations

• @JsonSerializable.new()

Constructors

StacGradient({StacGradientType? gradientType, List<StacColor>? colors, List<double>? stops, StacAlignment? begin, StacAlignment? end, StacAlignment? center, StacAlignment? focal, StacTileMode? tileMode, double? focalRadius, double? radius, double? startAngle, double? endAngle})

Creates a gradient with optional configuration parameters.

const

StacGradient.fromJson(Map<String, dynamic> json)

Creates a StacGradient from a JSON map.

factory

StacGradient.linear({required List<StacColor>? colors, List<double>? stops, StacAlignment? begin, StacAlignment? end, StacTileMode? tileMode})

Creates a linear gradient.

const

StacGradient.radial({required List<StacColor>? colors, List<double>? stops, StacAlignment? center, StacAlignment? focal, double? focalRadius, double? radius, StacTileMode? tileMode})

Creates a radial gradient.

const

StacGradient.sweep({required List<StacColor>? colors, List<double>? stops, StacAlignment? center, double? startAngle, double? endAngle, StacTileMode? tileMode})

Creates a sweep gradient.

const

Properties

begin → StacAlignment?

The starting alignment for linear gradients.

final

center → StacAlignment?

The center alignment for radial and sweep gradients.

final

colors → List<StacColor>?

The list of colors used in the gradient.

final

end → StacAlignment?

The ending alignment for linear gradients.

final

endAngle → double?

The ending angle for sweep gradients (in radians).

final

focal → StacAlignment?

The focal point alignment for radial gradients.

final

focalRadius → double?

The radius of the focal point for radial gradients.

final

gradientType → StacGradientType?

The type of gradient (linear, radial, or sweep).

final

hashCode → int

The hash code for this object.

no setter, inherited

radius → double?

The radius for radial gradients.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

startAngle → double?

The starting angle for sweep gradients (in radians).

final

stops → List<double>?

The stop positions for each color (values between 0.0 and 1.0).

final

tileMode → StacTileMode?

How the gradient should handle areas outside its bounds.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

Converts this StacGradient instance to a JSON map.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited