fix: tight_width should return 0 if unit is invalid

alibaba · Jun 20, 2024 · 12cefa7 · 12cefa7
1 parent 49d70dc
commit 12cefa7
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diff --git a/Cargo.toml b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fontkit"
-version = "0.6.0-beta.7"
+version = "0.6.0-beta.8"
 edition = "2021"
 authors = ["Zimon Dai <[email protected]>"]
 description = "A simple library for font loading and indexing"

diff --git a/src/metrics.rs b/src/metrics.rs
@@ -285,6 +285,9 @@ impl TextMetrics {
     }
 
     pub(crate) fn width_until(&self, font_size: f32, letter_spacing: f32, index: usize) -> f32 {
+        if self.units == 0 {
+            return 0.0;
+        }
         let factor = font_size / self.units as f32;
         let positions = self.positions.read().unwrap();
         positions.iter().take(index).fold(0.0, |current, p| {