SizeViewport class

A size unit that matches the viewport size along the specified axis.

Returns the viewport width for horizontal axis, viewport height for vertical axis. If the viewport size is infinite (during intrinsic sizing), returns 0.0.

Inheritance

• Object
• SizeUnit
• SizeViewport

Available extensions

• SizeUnitExtension

Constructors

SizeViewport()

Creates a viewport-sized size unit.

const

Properties

hashCode → int

The hash code for this object.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clamp({SizeUnit min = const SizeFixed(0), SizeUnit max = const SizeFixed(double.infinity)}) → SizeUnit

Available on SizeUnit, provided by the SizeUnitExtension extension

Constrains this size unit within the specified min and max bounds.

computeSize({required ParentLayout parent, required ChildLayout child, required LayoutHandle<Layout> layoutHandle, required LayoutAxis axis, required LayoutSize contentSize, required LayoutSize viewportSize}) → double

Returns the viewport size along the axis, or 0.0 if infinite.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toCodeString() → String

Converts the size unit to a code string representation.

override

toString() → String

A string representation of this object.

override

Operators

operator *(Object other) → SizeUnit

Available on SizeUnit, provided by the SizeUnitExtension extension

Multiplies two size units.

operator +(SizeUnit other) → SizeUnit

Available on SizeUnit, provided by the SizeUnitExtension extension

Adds two size units together.

operator -(SizeUnit other) → SizeUnit

Available on SizeUnit, provided by the SizeUnitExtension extension

Subtracts one size unit from another.

operator /(SizeUnit other) → SizeUnit

Available on SizeUnit, provided by the SizeUnitExtension extension

Divides one size unit by another.

operator ==(Object other) → bool

The equality operator.

override

operator unary-() → SizeUnit

Available on SizeUnit, provided by the SizeUnitExtension extension

Negates this size unit (equivalent to 0 - this).