Struct Swatch 

pub struct Swatch {
    pub base: Option<Base>,
    pub alpha: f32,
}

A palette color: one of the 16 Base slots, dimmed by an alpha multiplier. base == None resolves to a fully transparent color (the canvas’s “draw nothing” color). This is the single color type at the Renderer interface — it keeps the API tied to the palette instead of letting arbitrary Colors proliferate. Construct a fully-opaque swatch from a Base via Base.into(); use Swatch::faded for an overlay tint and Swatch::TRANSPARENT for nothing.

Fields

base: Option<Base>

alpha: f32

Implementations

impl Swatch

pub const TRANSPARENT: Swatch

A fully transparent swatch (draws nothing).

pub const fn solid(base: Base) -> Self

A fully opaque swatch on base.

pub const fn faded(base: Base, alpha: f32) -> Self

base dimmed to alpha (0.0..=1.0), for overlay tints (hover, marquee, faded routes, grid lines).

Trait Implementations

impl Clone for Swatch

fn clone(&self) -> Swatch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl From<Base> for Swatch

fn from(base: Base) -> Self

Converts to this type from the input type.

impl PartialEq for Swatch

fn eq(&self, other: &Swatch) -> 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 Swatch

impl StructuralPartialEq for Swatch