Struct StyleCache 

pub struct StyleCache { /* private fields */ }

Memoizes ComputedStyle per (widget_type, classes, id, stylesheet_generation).

When CompiledStyleSheet::generation advances, all cached entries from the previous generation are discarded before the new lookup.

Example

use oxiui_theme::{StyleCache, stylesheet::StyleSheet};
use oxiui_theme::compile::CompiledStyleSheet;

let sheet = StyleSheet::parse("button { color: #ff0000; }").stylesheet;
let compiled = CompiledStyleSheet::compile(&sheet, 1);
let mut cache = StyleCache::new();
let style = cache.get_or_compute(&compiled, "button", &[], None);
assert!(style.color.is_some());

Implementations

impl StyleCache

pub fn new() -> Self

Create an empty cache.

pub fn get_or_compute( &mut self, compiled: &CompiledStyleSheet, widget_type: &str, classes: &[&str], id: Option<&str>, ) -> &ComputedStyle

Look up or compute a style.

If compiled.generation differs from the last seen generation, the entire cache is cleared before the lookup proceeds. On a cache miss the style is computed via CompiledStyleSheet::compute_style, inserted, and returned.

Trait Implementations

impl Default for StyleCache

fn default() -> Self

Returns the “default value” for a type.