Struct Proposal 

pub struct Proposal {
    pub width: Option<f64>,
    pub height: Option<f64>,
}

What the parent is offering, each dimension possibly unspecified.

None means “as much or as little as you like” — SwiftUI’s nil, which is not the same as zero and is why this is an Option rather than a float.

Fields

width: Option<f64>

height: Option<f64>

Implementations

impl Proposal

pub fn or(self, fallback: f64) -> (f64, f64)

Each dimension, or fallback where the parent said nothing.

Trait Implementations

impl Clone for Proposal

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Proposal

impl Debug for Proposal

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

Formats the value using the given formatter.

impl PartialEq for Proposal

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Proposal