Struct HeightCache 

pub struct HeightCache { /* private fields */ }

LRU cache for measured item heights.

Implementations

impl HeightCache

pub fn new(default_height: u16, capacity: usize) -> Self

Create a new height cache.

pub fn get(&self, idx: usize) -> u16

Get height for item, returning default if not cached.

pub fn set(&mut self, idx: usize, height: u16)

Set height for item.

pub fn clear(&mut self)

Clear cached heights.

Trait Implementations

impl Clone for HeightCache

fn clone(&self) -> HeightCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HeightCache

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

Formats the value using the given formatter.

impl Default for HeightCache

fn default() -> Self

Returns the “default value” for a type.