Struct cacao::layout::LayoutConstraint

pub struct LayoutConstraint {
    pub constraint: ShareId<Object>,
    pub offset: f64,
    pub multiplier: f64,
    pub priority: f64,
    pub animator: LayoutConstraintAnimatorProxy,
}

A wrapper for NSLayoutConstraint. This both acts as a central path through which to activate constraints, as well as a wrapper for layout constraints that are not axis bound (e.g, width or height).

Fields

constraint: ShareId<Object>

A shared pointer to the underlying view. Provided your view isn’t dropped, this will always be valid.

offset: f64

The offset used in computing this constraint.

multiplier: f64

The multiplier used in computing this constraint.

priority: f64

The priority used in computing this constraint.

animator: LayoutConstraintAnimatorProxy

An animator proxy that can be used inside animation contexts.

Implementations

impl LayoutConstraint

pub fn offset<F: Into<f64>>(self, offset: F) -> Self

Sets the offset for this constraint.

pub fn set_offset<F: Into<f64>>(&self, offset: F)

Sets the offset of a borrowed constraint.

pub fn set_active(&self, active: bool)

Set whether this constraint is active or not. If you’re doing this across a batch of constraints, it’s often more performant to batch-deactivate with LayoutConstraint::deactivate().

pub fn activate(constraints: &[LayoutConstraint])

Call this with your batch of constraints to activate them.

pub fn deactivate(constraints: &[LayoutConstraint])

Trait Implementations

impl Clone for LayoutConstraint

fn clone(&self) -> LayoutConstraint

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LayoutConstraint

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.