Struct Generator 

pub struct Generator {
    pub external_resource_paths: Vec<PathBuf>,
    pub cache_root: PathBuf,
    /* private fields */
}

A class to represent an image generator.

The given Layout describes how to generate the Image.

This struct caches the font database and font source client to avoid re-initializing them on every render() call.

Fields

external_resource_paths: Vec<PathBuf>

Search paths used to resolve input images, SVG files, or font files.

cache_root: PathBuf

The root directory used for renderer cache data such as downloaded fonts.

Implementations

impl Generator

pub fn new( external_resource_paths: Vec<PathBuf>, cache_root: Option<PathBuf>, ) -> Result<Generator, ImgGenRendererError>

Create a new Generator with the given image search paths.

This initializes the shared font database and font source client once. Both are cached in-memory and reused across all subsequent renders.

pub async fn render(&self, layout: Layout) -> Result<Image, ImgGenRendererError>

Render the Image described by the Generator’s Layout.

Trait Implementations

impl Clone for Generator

fn clone(&self) -> Generator

Returns a duplicate of the value.

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

Performs copy-assignment from source.