Struct MemoryAssetSource 

pub struct MemoryAssetSource { /* private fields */ }

Available on crate feature fs only.

Asset source backed by a runtime-populated in-RAM table.

Useful for test asset injection and for assets pre-loaded from FATFS or another source before the widget tree starts. The table entries are owned String names paired with owned Vec<u8> byte buffers.

no_std + alloc

Yes. No static storage required.

Implementations

impl MemoryAssetSource

pub fn new() -> Self

Create an empty memory source.

pub fn insert(&mut self, name: impl Into<String>, data: Vec<u8>)

Insert a named asset with its byte contents.

If an entry with the same name already exists it is replaced.

Trait Implementations

impl AssetSource for MemoryAssetSource

fn open<'a>(&'a self, path: &str) -> Result<Box<dyn AssetRead + 'a>, AssetError>

Open an asset by logical path, e.g., "fonts/regular.bin".

fn exists(&self, path: &str) -> bool

Determine whether an asset at path exists.

fn list(&self, _dir: &str) -> Result<AssetIter, AssetError>

List the contents of dir, returning an iterator over asset entries.

impl Default for MemoryAssetSource

fn default() -> Self

Returns the “default value” for a type.