Struct ResourceFontLoader 

pub struct ResourceFontLoader<R> { /* private fields */ }

Loads font files through a ResourceProvider, one key per file in load order.

Implementations

impl<R> ResourceFontLoader<R>

pub fn new(resources: R) -> Self

Creates a loader backed by the given resource provider.

Examples found in repository

examples/bake_format.rs (line 24)

fn main() -> ExitCode {
    let mut args = std::env::args_os().skip(1);
    let (Some(output), None) = (args.next().map(PathBuf::from), args.next()) else {
        eprintln!("usage: bake_format <output.pkg>");
        return ExitCode::FAILURE;
    };
    let texmf = match TexmfResources::discover() {
        Ok(texmf) => texmf,
        Err(error) => {
            eprintln!("bake_format: {error}");
            return ExitCode::FAILURE;
        }
    };
    let fonts = ResourceFontLoader::new(&texmf);
    let format = match FormatBuilder::new(PREAMBLE)
        .kernel("latex.ltx")
        .build(&texmf, &fonts)
    {
        Ok(format) => format,
        Err(error) => {
            eprintln!("bake_format: {error}");
            return ExitCode::FAILURE;
        }
    };
    if let Err(error) = std::fs::write(&output, &format) {
        eprintln!("bake_format: cannot write {}: {error}", output.display());
        return ExitCode::FAILURE;
    }
    eprintln!(
        "bake_format: wrote {} bytes to {}",
        format.len(),
        output.display()
    );
    ExitCode::SUCCESS
}

pub fn resources(&self) -> &R

Returns a reference to the underlying resource provider.

pub fn cached_font_count(&self) -> usize

Number of font files loaded so far.

pub fn font(&self, key: FontKey) -> Option<FontData>

Returns the loaded font with the given key, so hosts can draw what the engine laid out.

Trait Implementations

impl<R: Debug> Debug for ResourceFontLoader<R>

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

Formats the value using the given formatter.

impl<R> FontLoader for ResourceFontLoader<R>

where R: ResourceProvider,

fn load(&self, spec: &FontSpec) -> Result<FontData, FontError>

Returns the face a spec names, with a key the host chooses to identify it in the IR.