Hsla class

Hsl class support to interact with a color as a hsl with hue, saturation, and lightness with optional alpha blending. The hue is a ratio of 360 degrees 360° = 1 or 0, (1° == (1/360)), saturation and lightness is a 0..1 fraction (1 == 100%) and alpha is a 0..1 fraction.

Implemented types

Constructors

Hsla(num hue, num saturation, num lightness, [num? alpha])
hue is a 0..1 fraction of 360 degrees (360 == 0). saturation is a 0..1 fraction (100% == 1). lightness is a 0..1 fraction (100% == 1). alpha is a 0..1 fraction, alpha blending between 0..1, 1 == 100% opaque.
Hsla.fromArgbValue(num value)
factory
Hsla.fromColor(Color color)
factory
Hsla.fromRgba(Rgba rgba)
factory
Hsla.fromString(String hexValue)
factory

Properties

alpha → num?
Returns number as 0..1
no setter
argbValue → int
Return argb as a value (int).
no setteroverride
color → Color
no setter
cssExpression → String
Returns the expression part of a CSS declaration. Declaration is:
no setter
hashCode → int
The hash code for this object.
no setteroverride
hue → num
Returns 0..1 fraction (ratio of 360°, e.g. 1° == 1/360).
no setter
hueDegrees → num
Returns number as degrees 0..360.
no setter
lightness → num
Returns 0..1 fraction (1 == 100%).
no setter
lightnessPercentage → num
Returns number as percentage 0..100.
no setter
rgba → Rgba
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
saturation → num
Returns 0..1 fraction (1 == 100%)
no setter
saturationPercentage → num
Returns number as percentage 0..100
no setter

Methods

darker(num amount) → Hsla
lighter(num amount) → Hsla
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toHexArgbString() → String
Canonical form for color #rrggbb with alpha blending (0.0 == full transparency and 1.0 == fully opaque). If _argb length is 6 it's an rrggbb otherwise it's aarrggbb.
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
override