BoxConstraints class

Immutable layout constraints with min/max width and height.

Follows Flutter's BoxConstraints API: BoxConstraints.tight, BoxConstraints.loose, BoxConstraints.expand, BoxConstraints.tightFor. Use deflate to subtract padding, enforce to clamp to another constraint.

Inheritance

Constructors

BoxConstraints({int minWidth = 0, int maxWidth = Constraints.infinity, int minHeight = 0, int maxHeight = Constraints.infinity}): Creates BoxConstraints with the given min/max width and height.
const
BoxConstraints.expand({int? width, int? height}): Creates constraints that force expansion to fill available space.
const
BoxConstraints.loose(Size size): Creates loose constraints that allow sizes from zero up to the given size.
BoxConstraints.tight(Size size): Creates tight constraints that force the given exact size.
BoxConstraints.tightFor({int? width, int? height}): Creates constraints that are tight for the given dimensions.
const

asBoxConstraints → BoxConstraints: Returns this as BoxConstraints, or throws if it is not.
no setterinherited
hashCode → int: The hash code for this object.
no setteroverride
isNormalized → bool: Whether these constraints satisfy the invariant: 0 <= min <= max.
no setter
isTight → bool: Whether these constraints force an exact size in both dimensions.
no setter
maxHeight → int: The maximum height constraint.
final
maxWidth → int: The maximum width constraint.
final
minHeight → int: The minimum height constraint.
final
minWidth → int: The minimum width constraint.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

constrain(Size size) → Size: Returns a Size that satisfies these constraints given the proposed size.
deflate(EdgeInsets edge) → BoxConstraints: Returns new constraints reduced by the given edge insets (e.g. padding).
enforce(BoxConstraints constraints) → BoxConstraints: Returns new constraints that are clamped within the given constraints.
loosen() → BoxConstraints: Returns new constraints with the minimum width and height set to zero.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
override