39 lines
1.1 KiB
Rust
39 lines
1.1 KiB
Rust
use crate::Font;
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use bevy_asset::{io::Reader, AssetLoader, LoadContext};
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use derive_more::derive::{Display, Error, From};
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#[derive(Default)]
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/// An [`AssetLoader`] for [`Font`]s, for use by the [`AssetServer`](bevy_asset::AssetServer)
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pub struct FontLoader;
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/// Possible errors that can be produced by [`FontLoader`]
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#[non_exhaustive]
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#[derive(Debug, Error, Display, From)]
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pub enum FontLoaderError {
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/// The contents that could not be parsed
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Content(cosmic_text::ttf_parser::FaceParsingError),
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/// An [IO](std::io) Error
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Io(std::io::Error),
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}
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impl AssetLoader for FontLoader {
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type Asset = Font;
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type Settings = ();
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type Error = FontLoaderError;
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async fn load(
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&self,
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reader: &mut dyn Reader,
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_settings: &(),
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_load_context: &mut LoadContext<'_>,
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) -> Result<Font, Self::Error> {
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let mut bytes = Vec::new();
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reader.read_to_end(&mut bytes).await?;
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let font = Font::try_from_bytes(bytes)?;
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Ok(font)
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}
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fn extensions(&self) -> &[&str] {
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&["ttf", "otf"]
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}
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}
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