Struct RetainAllImageCache 

pub struct RetainAllImageCache(/* private fields */);

An implementation of ImageCache, that uses an LRU caching strategy to unload images when the cache is full

Implementations

impl RetainAllImageCache

pub fn new(cx: &mut App) -> Entity<Self>

Create a new image cache.

pub fn load( &mut self, source: &Resource, window: &mut Window, cx: &mut App, ) -> Option<Result<Arc<RenderImage>, ImageCacheError>>

Load an image from the given source.

Returns None if the image is loading.

pub fn clear(&mut self, window: &mut Window, cx: &mut App)

Clear the image cache.

pub fn remove(&mut self, source: &Resource, window: &mut Window, cx: &mut App)

Remove the image from the cache by the given source.

pub fn len(&self) -> usize

Returns the number of images in the cache.

pub fn is_empty(&self) -> bool

Returns true if the cache is empty.

Trait Implementations

impl Debug for RetainAllImageCache

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

Formats the value using the given formatter.

impl ImageCache for RetainAllImageCache

fn load( &mut self, resource: &Resource, window: &mut Window, cx: &mut App, ) -> Option<Result<Arc<RenderImage>, ImageCacheError>>

Load an image given a resource returns the result of loading the image if it has finished loading, or None if it is still loading