An immutable set of radii for each corner of a rectangle, but with the corners specified in a manner dependent on the writing direction.

This can be used to specify a corner radius on the leading or trailing edge of a box, so that it flips to the other side when the text alignment flips (e.g. being on the top right in English text but the top left in Arabic text).

See also:

  • BorderRadius, a variant that uses physical labels (topLeft and topRight instead of topStart and topEnd).
Inheritance

Constructors

BorderRadiusDirectional.all(Radius radius)
Creates a border radius where all radii are radius.
const
BorderRadiusDirectional.circular(double radius)
Creates a border radius where all radii are Radius.circular(radius).
BorderRadiusDirectional.horizontal({Radius start: Radius.zero, Radius end: Radius.zero })
Creates a horizontally symmetrical border radius where the start and end sides of the rectangle have the same radii.
const
BorderRadiusDirectional.only({Radius topStart: Radius.zero, Radius topEnd: Radius.zero, Radius bottomStart: Radius.zero, Radius bottomEnd: Radius.zero })
Creates a border radius with only the given non-zero values. The other corners will be right angles.
const
BorderRadiusDirectional.vertical({Radius top: Radius.zero, Radius bottom: Radius.zero })
Creates a vertically symmetric border radius where the top and bottom sides of the rectangle have the same radii.
const

Properties

bottomEnd Radius
The bottom-end Radius.
final
bottomStart Radius
The bottom-start Radius.
final
topEnd Radius
The top-end Radius.
final
topStart Radius
The top-start Radius.
final
hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

add(BorderRadiusGeometry other) BorderRadiusGeometry
Returns the sum of two BorderRadiusGeometry objects. [...]
resolve(TextDirection direction) BorderRadius
Convert this instance into a BorderRadius, so that the radii are expressed for specific physical corners (top-left, top-right, etc) rather than in a direction-dependent manner. [...]
subtract(BorderRadiusGeometry other) BorderRadiusGeometry
Returns the difference between two BorderRadiusGeometry objects. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toString() String
Returns a string representation of this object.
inherited

Operators

operator %(double other) BorderRadiusDirectional
Computes the remainder of each corner by the given factor.
operator *(double other) BorderRadiusDirectional
Scales each corner of the BorderRadiusDirectional by the given factor.
operator +(BorderRadiusDirectional other) BorderRadiusDirectional
Returns the sum of two BorderRadiusDirectional objects.
operator -(BorderRadiusDirectional other) BorderRadiusDirectional
Returns the difference between two BorderRadiusDirectional objects.
operator /(double other) BorderRadiusDirectional
Divides each corner of the BorderRadiusDirectional by the given factor.
operator unary-() BorderRadiusDirectional
Returns the BorderRadiusDirectional object with each corner negated. [...]
operator ~/(double other) BorderRadiusDirectional
Integer divides each corner of the BorderRadiusDirectional by the given factor.
operator ==(other) bool
The equality operator. [...]
inherited

Static Methods

lerp(BorderRadiusDirectional a, BorderRadiusDirectional b, double t) BorderRadiusDirectional
Linearly interpolate between two BorderRadiusDirectional objects. [...]

Constants

zero BorderRadiusDirectional
A border radius with all zero radii. [...]
const BorderRadiusDirectional.all(Radius.zero)