Struct CachedWidget 

pub struct CachedWidget<W, K = NoCacheKey> { /* private fields */ }

Cached widget wrapper.

Use with CachedWidgetState via the StatefulWidget trait.

Implementations

impl<W> CachedWidget<W, NoCacheKey>

pub fn new(widget: W) -> Self

Create a cached widget with manual invalidation.

impl<W: Hash> CachedWidget<W, HashKey>

pub fn with_hash(widget: W) -> Self

Create a cached widget using Hash as the cache key.

impl<W, F: Fn(&W) -> u64> CachedWidget<W, FnKey<F>>

pub fn with_key(widget: W, key_fn: F) -> Self

Create a cached widget with a custom cache key function.

impl<W, K> CachedWidget<W, K>

pub fn inner(&self) -> &W

Access the inner widget.

pub fn inner_mut(&mut self) -> &mut W

Mutable access to the inner widget.

pub fn into_inner(self) -> W

Consume the wrapper and return the inner widget.

pub fn mark_dirty(&self, state: &mut CachedWidgetState)

Mark the cache as dirty (forces a re-render on next draw).

Trait Implementations

impl<W: Widget, K: CacheKey<W>> StatefulWidget for CachedWidget<W, K>

type State = CachedWidgetState

The state type associated with this widget.

fn render( &self, area: Rect, frame: &mut Frame<'_>, state: &mut CachedWidgetState, )

Render the widget into the frame, potentially modifying state.