Documentation

2 files changed, 11 insertions, 0 deletions

diff --git a/src/geom/em.rs b/src/geom/em.rs
index 93dc80e4..9f5aff39 100644
--- a/src/geom/em.rs
+++ b/src/geom/em.rs
@@ -42,6 +42,11 @@ impl Em {
         (self.0).0
     }
 
+    /// The absolute value of this em length.
+    pub fn abs(self) -> Self {
+        Self::new(self.get().abs())
+    }
+
     /// Convert to an absolute length at the given font size.
     pub fn at(self, font_size: Abs) -> Abs {
         let resolved = font_size * self.get();
diff --git a/src/geom/length.rs b/src/geom/length.rs
index 230ea48b..ae615f14 100644
--- a/src/geom/length.rs
+++ b/src/geom/length.rs
@@ -18,6 +18,12 @@ impl Length {
         Self { abs: Abs::zero(), em: Em::zero() }
     }
 
+    /// Try to compute the absolute value of the length.
+    pub fn try_abs(self) -> Option<Self> {
+        (self.abs.is_zero() || self.em.is_zero())
+            .then(|| Self { abs: self.abs.abs(), em: self.em.abs() })
+    }
+
     /// Try to divide two lengths.
     pub fn try_div(self, other: Self) -> Option<f64> {
         if self.abs.is_zero() && other.abs.is_zero() {