OffsetBase class Null safety

Base class for Size and Offset, which are both ways to describe a distance as a two-dimensional axis-aligned vector.

Implementers

Constructors

OffsetBase(double _dx, double _dy)
Abstract const constructor. This constructor enables subclasses to provide const constructors so that they can be used in const expressions.
const

Properties

hashCode int
The hash code for this object.
read-only, override
isFinite bool
Whether both components are finite (neither infinite nor NaN).
read-only
isInfinite bool
Returns true if either component is double.infinity, and false if both are finite (or negative infinity, or NaN).
read-only
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toString() String
A string representation of this object.
override

Operators

operator <(OffsetBase other) bool
Less-than operator. Compares an Offset or Size to another Offset or Size, and returns true if both the horizontal and vertical values of the left-hand-side operand are smaller than the horizontal and vertical values of the right-hand-side operand respectively. Returns false otherwise.
operator <=(OffsetBase other) bool
Less-than-or-equal-to operator. Compares an Offset or Size to another Offset or Size, and returns true if both the horizontal and vertical values of the left-hand-side operand are smaller than or equal to the horizontal and vertical values of the right-hand-side operand respectively. Returns false otherwise.
operator ==(Object other) bool
Equality operator. Compares an Offset or Size to another Offset or Size, and returns true if the horizontal and vertical values of the left-hand-side operand are equal to the horizontal and vertical values of the right-hand-side operand respectively. Returns false otherwise.
override
operator >(OffsetBase other) bool
Greater-than operator. Compares an Offset or Size to another Offset or Size, and returns true if both the horizontal and vertical values of the left-hand-side operand are bigger than the horizontal and vertical values of the right-hand-side operand respectively. Returns false otherwise.
operator >=(OffsetBase other) bool
Greater-than-or-equal-to operator. Compares an Offset or Size to another Offset or Size, and returns true if both the horizontal and vertical values of the left-hand-side operand are bigger than or equal to the horizontal and vertical values of the right-hand-side operand respectively. Returns false otherwise.