Enum Paint 

pub enum Paint {
    Solid(Color),
    LinearGradient(LinearGradient),
    RadialGradient(RadialGradient),
    Blend(Vec<(Paint, f64)>),
    MeshGradient(MeshGradient),
}

Describes how to fill vector geometry. Solid fills interpolate their RGBA channels. Other pairs crossfade sampled paints in premultiplied RGBA, preserving each gradient’s geometry and stops.

Variants

Solid(Color)

A single solid color.

LinearGradient(LinearGradient)

A linear gradient.

RadialGradient(RadialGradient)

A radial gradient.

Blend(Vec<(Paint, f64)>)

A weighted paint mixture produced by interpolation. Weights are finite, nonnegative, and sum to one. Use Paint::blend to normalize weights, flatten nested mixtures, and combine repeated endpoints.

MeshGradient(MeshGradient)

A row-connected bicubic field with independently positioned colored anchors.

Implementations

impl Paint

pub fn blend(terms: Vec<(Paint, f64)>) -> Paint

Constructs a normalized mixture of paints. Nested mixtures are flattened and identical endpoints merged, so repeated interruptions between a fixed set of themes do not accumulate a history of blend nodes. Nonpositive or nonfinite weights are ignored; an empty mixture is transparent.

Sampling cost grows with the number of distinct endpoints still visible. A completed interpolation returns its destination paint directly.

pub fn representative_color(&self) -> Color

Representative solid color for native text, which currently uses the first stop of a gradient. Mixtures crossfade those representative colors.

pub fn to_unit_point(_: (Size, Size), _: (f64, f64)) -> UnitPoint

pub fn to_piet_gradient_stops(stops: Vec<GradientStop>) -> Vec<GradientStop>

pub fn linearGradient( start: (Size, Size), end: (Size, Size), stops: Vec<GradientStop>, ) -> Paint

Constructs a linear gradient paint.

Pax templates should normally use @gradient. When this helper is needed explicitly, pass start and end as [x, y] lists.

pub fn with_alpha_factor(&self, factor: f64) -> Paint

Returns a copy of this paint with alpha multiplied by factor.

pub fn max_alpha_0_1(&self) -> f64

Returns a conservative upper bound for this paint’s alpha. For mixtures, endpoint maxima need not occur at the same point.

pub fn coverage_alpha_0_1(&self) -> f64

Estimates the alpha coverage contributed by this fill.

Trait Implementations

impl Clone for Paint

fn clone(&self) -> Paint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl CoercionRules for Paint

fn try_coerce(pax_value: PaxValue) -> Result<Paint, String>

Attempts to coerce value into Self.

fn allows_singleton_stack() -> bool

Opts appearance layers into scalar-to-singleton stack conversion. Ordinary vector values remain list-only.

fn is_identity_roundtrip() -> bool

Whether cloning Self preserves the semantics of converting that clone through ToPaxValue and back with try_coerce.

impl Debug for Paint

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

Formats the value using the given formatter.

impl Default for Paint

fn default() -> Paint

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Paint

fn deserialize<__D>( __deserializer: __D, ) -> Result<Paint, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Color> for Paint

fn from(color: Color) -> Paint

Converts to this type from the input type.

impl From<Paint> for Fill

fn from(paint: Paint) -> Fill

Converts to this type from the input type.

impl From<Paint> for Stroke

fn from(paint: Paint) -> Stroke

Converts to this type from the input type.

impl Hash for Paint

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl HelperFunctions for Paint

fn register_all_functions()

Registers all helper functions for this type.

impl Interpolatable for Paint

fn interpolate(&self, other: &Paint, t: f64) -> Paint

Interpolates this value toward other at time t on the unit interval.

impl PartialEq for Paint

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Paint

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Paint

impl ToPaxValue for Paint

fn to_pax_value(self) -> PaxValue

Converts this value into a PaxValue.

fn nested_properties(&self) -> Vec<UntypedProperty>

Live properties read when snapshotting a compound value for PAXEL. Adapters observe these as well as the containing property.

fn to_pax_value_in_graph(self) -> PaxValue

where Self: Sized,

Converts against owner-thread graph views, including nested generated property fields. Requires an entered property graph for shared fields. Ordinary Self::to_pax_value reads published value snapshots.