Struct PageCache 

pub struct PageCache { /* private fields */ }

LRU cache for rendered pages, keyed on (page_index, render_size).

Each window gets pages rendered at its own resolution, so the same page may be cached at multiple sizes (e.g., presenter DPI and audience DPI).

Implementations

impl PageCache

pub fn new(capacity: usize) -> Self

Create a new cache with the given capacity (number of entries).

pub fn get( &mut self, page_index: usize, size: RenderSize, ) -> Option<&RenderedPage>

Get a cached page, if available.

pub fn insert( &mut self, page_index: usize, size: RenderSize, page: RenderedPage, )

Insert a rendered page into the cache, evicting the least recently used if full.

pub fn clear(&mut self)

Clear the entire cache.