BoxConstraintsAxisUtil extension

Extension on BoxConstraints that provides various axis-dependant utilities.

on

Methods

axisConstraints(Axis axis) → BoxConstraints
Returns box constraints with the same axis constraints but with an unconstrained cross axis.
constrainAxis(Axis axis, [double extent = double.infinity]) → double
Returns the value that both satisfies the constraints and is as close as possible to the given extent on axis.
constrainAxisDimensions(Axis axis, double cross, double main) → Size
Returns the size that both satisfies the constraints and is as close as possible to the given cross and main size.
constrainCrossAxis(Axis axis, [double extent = double.infinity]) → double
Returns the value that both satisfies the constraints and is as close as possible to the given extent crossing axis.
copyWithAxis(Axis axis, {double? minCross, double? maxCross, double? minMain, double? maxMain}) → BoxConstraints
Creates a copy of this box constraints but with the given fields replaced with the new values.
crossAxisConstraints(Axis axis) → BoxConstraints
Returns box constraints with the same cross axis constraints but with an unconstrained main axis.
hasBoundedAxis(Axis axis) → bool
Whether there is an upper bound on the maximum extent of the given axis.
hasBoundedCrossAxis(Axis axis) → bool
Whether there is an upper bound on the maximum extent crossing the given axis.
hasInfiniteAxis(Axis axis) → bool
Whether the constraint for the given axis is infinite.
hasInfiniteCrossAxis(Axis axis) → bool
Whether the constraint crossing the given axis is infinite.
hasTightAxis(Axis axis) → bool
Whether there is exactly one value that satisfies the constraints on the given axis.
hasTightCrossAxis(Axis axis) → bool
Whether there is exactly one value that satisfies the constraints crossing the given axis.
maxAxis(Axis axis) → double
The maximum value that satisfies the constraints on the given axis.
maxCrossAxis(Axis axis) → double
The maximum value that satisfies the constraints crossing the given axis.
minAxis(Axis axis) → double
The minimum value that satisfies the constraints on the given axis.
minCrossAxis(Axis axis) → double
The minimum value that satisfies the constraints crossing the given axis.
tightenAxis(Axis axis, {double? cross, double? main}) → BoxConstraints
Returns new box constraints with a tight main and/or cross axes.

Static Methods

create(Axis axis, {double minCross = 0.0, double maxCross = double.infinity, double minMain = 0.0, double maxMain = double.infinity}) → BoxConstraints
Creates box constraints with the given constraints.
expand(Axis axis, {double? cross, double? main}) → BoxConstraints
Creates box constraints that expand to fill another box constraints.
tightFor(Axis axis, {double? cross, double? main}) → BoxConstraints
Creates box constraints that require the given cross or main size.
tightForFinite(Axis axis, {double cross = double.infinity, double main = double.infinity}) → BoxConstraints
Creates box constraints that require the given cross or main size, except if they are infinite.