GuardrailLimits class final

Thresholds for one theme (standard or Accessible lock).

Annotations

• @immutable

Constructors

GuardrailLimits({required double labelRatio, required double displayRatio, required double previewRatio, required double caretRatio, double focusRingRatio = ratioLarge, double faceContrast = 1.5, double cvdDeltaE = 0.08, double equalsVsOperatorDeltaE = 0.05})

const

Properties

caretRatio → double

Caret on display backdrops.

final

cvdDeltaE → double

Operator / = face vs digit face min ΔEOK over normal + CVD.

final

displayRatio → double

Display (expression/result) and error text on display backdrops.

final

equalsVsOperatorDeltaE → double

= face vs operator face min ΔEOK over normal + CVD.

final

faceContrast → double

Operator / = face vs digit face contrast.

final

focusRingRatio → double

Focus ring on the background (WCAG 1.4.11).

final

hashCode → int

The hash code for this object.

no setter, inherited

labelPolicy → ContrastPolicy

The label-solving policy matching these limits.

no setter

labelRatio → double

Key labels on their faces (digits, operators, =, functions).

final

previewRatio → double

Live preview / indicator text on display backdrops.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

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

Static Methods

forSpec(ThemeSpec spec) → GuardrailLimits

Limits for spec (its accessible flag).

Constants

accessible → const GuardrailLimits

Accessible lock: every label and display text ≥ 7:1.

standard → const GuardrailLimits

Standard limits.