From d46be20d6e61a72a5836f9e51ddf8f732bb3e55c Mon Sep 17 00:00:00 2001
From: Christian Duerr <contact@christianduerr.com>
Date: Wed, 10 Nov 2021 22:01:39 +0100
Subject: [PATCH] Add SubAssign for Size

---
 src/utils/geometry.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/utils/geometry.rs b/src/utils/geometry.rs
index 45652e4..50a84e2 100644
--- a/src/utils/geometry.rs
+++ b/src/utils/geometry.rs
@@ -637,6 +637,14 @@ impl<N: AddAssign, Kind> AddAssign for Size<N, Kind> {
     }
 }
 
+impl<N: SubAssign, Kind> SubAssign for Size<N, Kind> {
+    #[inline]
+    fn sub_assign(&mut self, rhs: Self) {
+        self.w -= rhs.w;
+        self.h -= rhs.h
+    }
+}
+
 impl<N: Clone, Kind> Clone for Size<N, Kind> {
     #[inline]
     fn clone(&self) -> Self {