Struct StyleEvalContext 

pub struct StyleEvalContext {
    pub zoom: f32,
}

Runtime evaluation context for paint/layout values.

This lightweight struct carries zoom-only state and is Copy so it can be passed cheaply through the style-evaluation pipeline. For feature-state-aware evaluation, use StyleEvalContextFull which borrows a FeatureState map alongside the zoom level.

Fields

zoom: f32

Current map zoom level.

Implementations

impl StyleEvalContext

pub fn new(zoom: f32) -> Self

Create a new evaluation context.

pub fn with_feature_state( self, feature_state: &FeatureState, ) -> StyleEvalContextFull<'_>

Promote to a full evaluation context that includes per-feature state.

This is the bridge between the fast zoom-only path and the richer feature-state-aware path used during hover/selection restyling.

Trait Implementations

impl Clone for StyleEvalContext

fn clone(&self) -> StyleEvalContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StyleEvalContext

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

Formats the value using the given formatter.

impl Default for StyleEvalContext

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for StyleEvalContext

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

impl StructuralPartialEq for StyleEvalContext