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macos: constrain fallback to normal attributes

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refs: https://github.com/wez/wezterm/issues/4808
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Wez Furlong 2024-01-29 20:01:48 -07:00
parent a51c6a2638
commit c4f16fe339
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docs/changelog.md
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@ -25,6 +25,8 @@ As features stabilize some brief notes about them will accumulate here.
* Not yet!
#### New
#### Fixed
* macOS: fallback fonts could select thin or otherwise unspecified font
attributes. #4808
### 20240128-202157-1e552d76

11
wezterm-font/src/locator/core_text.rs
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@ -162,6 +162,17 @@ impl FontLocator for CoreTextFontLocator {
continue;
}
let is_normal = font.weight() == FontWeight::REGULAR
&& font.stretch() == FontStretch::Normal
&& font.style() == FontStyle::Normal;
if !is_normal {
// Only use normal attributed text for fallbacks,
// otherwise we'll end up picking something with
// undefined and undesirable attributes
// <https://github.com/wez/wezterm/issues/4808>
continue;
}
if let Ok(cov) = font.coverage_intersection(&wanted) {
// Explicitly check coverage because the list may not
// actually match the text we asked about(!)