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Fix potential deadlock when using FontCache::em_width

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This commit is contained in:
Antonio Scandurra 2021-08-27 14:53:55 +02:00
parent bed9d9c9d8
commit 7f5cd017cb
1 changed files with 7 additions and 3 deletions
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10
gpui/src/font_cache.rs
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@ -147,9 +147,13 @@ impl FontCache {
}
pub fn em_width(&self, font_id: FontId, font_size: f32) -> f32 {
let state = self.0.read();
let glyph_id = state.fonts.glyph_for_char(font_id, 'm').unwrap();
let bounds = state.fonts.typographic_bounds(font_id, glyph_id).unwrap();
let glyph_id;
let bounds;
{
let state = self.0.read();
glyph_id = state.fonts.glyph_for_char(font_id, 'm').unwrap();
bounds = state.fonts.typographic_bounds(font_id, glyph_id).unwrap();
}
self.scale_metric(bounds.width(), font_id, font_size)
}