BoxBorder class Null safety

Base class for box borders that can paint as rectangles, circles, or rounded rectangles.

This class is extended by Border and BorderDirectional to provide concrete versions of four-sided borders using different conventions for specifying the sides.

The only API difference that this class introduces over ShapeBorder is that its paint method takes additional arguments.

Constructors

BoxBorder(): Abstract const constructor. This constructor enables subclasses to provide const constructors so that they can be used in const expressions.
const

Properties

bottom → BorderSide: The bottom side of this border.
read-only
dimensions → EdgeInsetsGeometry: The widths of the sides of this border represented as an EdgeInsets.
read-onlyinherited
hashCode → int: The hash code for this object.
read-onlyinherited
isUniform → bool: Whether all four sides of the border are identical. Uniform borders are typically more efficient to paint.
read-only
runtimeType → Type: A representation of the runtime type of the object.
read-onlyinherited
top → BorderSide: The top side of this border.
read-only

Methods

add(ShapeBorder other, {bool reversed = false}) → BoxBorder?: Attempts to create a new object that represents the amalgamation of this border and the other border.
override
getInnerPath(Rect rect, {TextDirection? textDirection}) → Path: Create a Path that describes the inner edge of the border.
override
getOuterPath(Rect rect, {TextDirection? textDirection}) → Path: Create a Path that describes the outer edge of the border.
override
lerpFrom(ShapeBorder? a, double t) → ShapeBorder?: Linearly interpolates from another ShapeBorder (possibly of another class) to this.
protected">@protectedinherited
lerpTo(ShapeBorder? b, double t) → ShapeBorder?: Linearly interpolates from this to another ShapeBorder (possibly of another class).
protected">@protectedinherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed.
inherited
paint(Canvas canvas, Rect rect, {TextDirection? textDirection, BoxShape shape = BoxShape.rectangle, BorderRadius? borderRadius}) → void: Paints the border within the given Rect on the given Canvas.
override
scale(double t) → ShapeBorder: Creates a copy of this border, scaled by the factor t.
inherited
toString() → String: A string representation of this object.
inherited

Operators

operator +(ShapeBorder other) → ShapeBorder: Creates a new border consisting of the two borders on either side of the operator.
inherited
operator ==(Object other) → bool: The equality operator.
inherited

Static Methods

lerp(BoxBorder? a, BoxBorder? b, double t) → BoxBorder?: Linearly interpolate between two borders.
override