Struct Constraints 

pub struct Constraints {
    pub min_width: f32,
    pub max_width: f32,
    pub min_height: f32,
    pub max_height: f32,
}

Constraints used during layout measurement.

Fields

min_width: f32

max_width: f32

min_height: f32

max_height: f32

Implementations

impl Constraints

pub fn tight(width: f32, height: f32) -> Constraints

Creates constraints with exact width and height.

pub fn loose(max_width: f32, max_height: f32) -> Constraints

Creates constraints with loose bounds (min = 0, max = given values).

pub fn is_tight(&self) -> bool

Returns true if these constraints have a single size that satisfies them.

pub fn is_bounded(&self) -> bool

Returns true if all bounds are finite.

pub fn constrain(&self, width: f32, height: f32) -> (f32, f32)

Constrains the provided width and height to fit within these constraints.

pub fn has_bounded_width(&self) -> bool

Returns true if the width is bounded (max_width is finite).

pub fn has_bounded_height(&self) -> bool

Returns true if the height is bounded (max_height is finite).

pub fn has_tight_width(&self) -> bool

Returns true if both width and height are tight (min == max for both).

pub fn has_tight_height(&self) -> bool

Returns true if the height is tight (min == max).

pub fn tighten_width(self, width: f32) -> Constraints

Creates new constraints with tightened width (min = max = given width).

pub fn tighten_height(self, height: f32) -> Constraints

Creates new constraints with tightened height (min = max = given height).

pub fn copy_with_width(self, min_width: f32, max_width: f32) -> Constraints

Creates new constraints with the given width bounds.

pub fn copy_with_height(self, min_height: f32, max_height: f32) -> Constraints

Creates new constraints with the given height bounds.

pub fn deflate(self, horizontal: f32, vertical: f32) -> Constraints

Deflates constraints by the given amount on all sides. This is useful for applying padding before measuring children.

pub fn loosen(self) -> Constraints

Creates new constraints with loosened minimums (min = 0).

pub fn enforce(self, width: f32, height: f32) -> Constraints

Creates constraints that enforce the given size.

Trait Implementations

impl Clone for Constraints

fn clone(&self) -> Constraints

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Constraints

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

Formats the value using the given formatter.

impl PartialEq for Constraints

fn eq(&self, other: &Constraints) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Constraints

impl StructuralPartialEq for Constraints