Struct ImageManager 

pub struct ImageManager { /* private fields */ }

Tracks symbol image dependencies.

Implementations

impl ImageManager

pub fn new() -> Self

Create an empty image manager.

pub fn register_sprite(&mut self, image: SpriteImage)

Register a sprite-sheet image.

pub fn register_image(&mut self, image: SpriteImage)

Register a standalone image.

pub fn load_sprite_sheet_index_json( &mut self, json: &str, ) -> Result<(), SpriteSheetParseError>

Load a sprite-sheet index JSON document.

pub fn request(&mut self, id: &str)

Mark an image id as required by the current symbol set.

pub fn contains(&self, id: &str) -> bool

Check whether an image is known either as a sprite or standalone image.

pub fn referenced(&self) -> impl Iterator<Item = &str>

Iterate referenced image ids.

Trait Implementations

impl Clone for ImageManager

fn clone(&self) -> ImageManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ImageManager

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

Formats the value using the given formatter.

impl Default for ImageManager

fn default() -> ImageManager

Returns the “default value” for a type.