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Implement fallback priorities and han unification on Unix

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This commit is contained in:
Jeremy Soller 2022-10-13 10:39:12 -06:00
parent 63680b5696
commit 7e08a63796
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GPG key ID: 87F211AF2BE4C2FE
13 changed files with 290 additions and 51 deletions
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22
examples/text/src/font/system.rs
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@ -3,11 +3,18 @@ use std::ops::Deref;
use super::{Font, FontMatches};
pub struct FontSystem {
pub locale: String,
db: fontdb::Database,
}
impl FontSystem {
pub fn new() -> Self {
let locale = sys_locale::get_locale().unwrap_or_else(|| {
log::warn!("failed to get system locale, falling back to en-US");
String::from("en-US")
});
log::info!("Locale: {}", locale);
let mut db = fontdb::Database::new();
let now = std::time::Instant::now();
db.load_system_fonts();
@ -15,7 +22,7 @@ impl FontSystem {
db.set_monospace_family("Fira Mono");
db.set_sans_serif_family("Fira Sans");
db.set_serif_family("DejaVu Serif");
println!(
log::info!(
"Loaded {} font faces in {}ms.",
db.len(),
now.elapsed().as_millis()
@ -30,7 +37,7 @@ impl FontSystem {
}
}
Self { db }
Self { locale, db }
}
pub fn matches<'a, F: Fn(&fontdb::FaceInfo) -> bool>(
@ -44,11 +51,11 @@ impl FontSystem {
}
let font_opt = Font::new(
&face.post_script_name,
face,
match &face.source {
fontdb::Source::Binary(data) => data.deref().as_ref(),
fontdb::Source::File(path) => {
println!("Unsupported fontdb Source::File('{}')", path.display());
log::warn!("Unsupported fontdb Source::File('{}')", path.display());
continue;
}
fontdb::Source::SharedFile(_path, data) => data.deref().as_ref(),
@ -59,13 +66,16 @@ impl FontSystem {
match font_opt {
Some(font) => fonts.push(font),
None => {
eprintln!("failed to load font '{}'", face.post_script_name);
log::warn!("failed to load font '{}'", face.post_script_name);
}
}
}
if !fonts.is_empty() {
Some(FontMatches { fonts })
Some(FontMatches {
locale: &self.locale,
fonts
})
} else {
None
}