Size class Null safety

Holds a 2D floating-point size.

You can think of this as an Offset from the origin.

Inheritance

Constructors

Size(double width, double height)
Creates a Size with the given width and height.
const
Size.copy(Size source)
Creates an instance of Size that has the same values as another.
Size.fromHeight(double height)
Creates a Size with the given height and an infinite width.
const
Size.fromRadius(double radius)
Creates a square Size whose width and height are twice the given dimension.
const
Size.fromWidth(double width)
Creates a Size with the given width and an infinite height.
const
Size.square(double dimension)
Creates a square Size whose width and height are the given dimension.
const

Properties

aspectRatio → double
The aspect ratio of this size.
read-only
flipped → Size
A Size with the width and height swapped.
read-only
hashCode → int
The hash code for this object.
read-onlyoverride
height → double
The vertical extent of this size.
read-only
isEmpty → bool
Whether this size encloses a non-zero area.
read-only
isFinite → bool
Whether both components are finite (neither infinite nor NaN).
read-onlyinherited
isInfinite → bool
Returns true if either component is double.infinity, and false if both are finite (or negative infinity, or NaN).
read-onlyinherited
longestSide → double
The greater of the magnitudes of the width and the height.
read-only
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
shortestSide → double
The lesser of the magnitudes of the width and the height.
read-only
width → double
The horizontal extent of this size.
read-only

Methods

bottomCenter(Offset origin) → Offset
The offset to the center of the bottom edge of the rectangle described by the given offset (which is interpreted as the top-left corner) and this size.
bottomLeft(Offset origin) → Offset
The offset to the intersection of the bottom and left edges of the rectangle described by the given offset (which is interpreted as the top-left corner) and this size.
bottomRight(Offset origin) → Offset
The offset to the intersection of the bottom and right edges of the rectangle described by the given offset (which is interpreted as the top-left corner) and this size.
center(Offset origin) → Offset
The offset to the point halfway between the left and right and the top and bottom edges of the rectangle described by the given offset (which is interpreted as the top-left corner) and this size.
centerLeft(Offset origin) → Offset
The offset to the center of the left edge of the rectangle described by the given offset (which is interpreted as the top-left corner) and this size.
centerRight(Offset origin) → Offset
The offset to the center of the right edge of the rectangle described by the given offset (which is interpreted as the top-left corner) and this size.
contains(Offset offset) → bool
Whether the point specified by the given offset (which is assumed to be relative to the top left of the size) lies between the left and right and the top and bottom edges of a rectangle of this size.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
topCenter(Offset origin) → Offset
The offset to the center of the top edge of the rectangle described by the given offset (which is interpreted as the top-left corner) and this size.
topLeft(Offset origin) → Offset
The offset to the intersection of the top and left edges of the rectangle described by the given Offset (which is interpreted as the top-left corner) and this Size.
topRight(Offset origin) → Offset
The offset to the intersection of the top and right edges of the rectangle described by the given offset (which is interpreted as the top-left corner) and this size.
toString() → String
A string representation of this object.
override

Operators

operator %(double operand) → Size
Modulo (remainder) operator.
operator *(double operand) → Size
Multiplication operator.
operator +(Offset other) → Size
Binary addition operator for adding an Offset to a Size.
operator -(OffsetBase other) → OffsetBase
Binary subtraction operator for Size.
operator /(double operand) → Size
Division operator.
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.
inherited
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.
inherited
operator ==(Object other) → bool
Compares two Sizes for equality.
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.
inherited
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.
inherited
operator ~/(double operand) → Size
Integer (truncating) division operator.

Static Methods

lerp(Size? a, Size? b, double t) → Size?
Linearly interpolate between two sizes

Constants

infinite → const Size
A size whose width and height are infinite.
Size(double.infinity, double.infinity)
zero → const Size
An empty size, one with a zero width and a zero height.
Size(0.0, 0.0)