Struct WaveformCache

pub struct WaveformCache {
    backend: Backend,
    ctx: Context,
    state: Arc<Mutex<State>>,
}

Fields

backend: Backend

ctx: Context

state: Arc<Mutex<State>>

Implementations

impl WaveformCache

pub fn new(ctx: Context, backend: Backend) -> Self

pub fn set_backend(&mut self, b: Backend)

pub fn clear(&mut self)

Forget all in-memory peaks (a file at a known path was rewritten, e.g. Save over the original). Swaps the state so an in-flight computation finishes into the orphaned map instead of re-inserting stale peaks; unchanged files just reload from the len+mtime-keyed disk cache.

pub fn get(&mut self, path: &str, stream: usize) -> Option<Arc<Peaks>>

Non-blocking. Returns the peaks if available; otherwise starts computing them in the background (once) and returns None. Calls ctx.request_repaint() when a computation finishes.