From 43aafb7b79d51106c05f2494e6adc4a7a51d947e Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector@hecrj.dev>
Date: Wed, 10 Apr 2024 20:31:44 +0200
Subject: Clip quad damage with layer bounds in `iced_tiny_skia`

---
 tiny_skia/src/layer.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'tiny_skia')

diff --git a/tiny_skia/src/layer.rs b/tiny_skia/src/layer.rs
index ec87c2bf..3e42e4aa 100644
--- a/tiny_skia/src/layer.rs
+++ b/tiny_skia/src/layer.rs
@@ -174,10 +174,20 @@ impl Layer {
     }
 
     pub fn damage(previous: &Self, current: &Self) -> Vec<Rectangle> {
+        if previous.bounds != current.bounds {
+            return vec![previous.bounds, current.bounds];
+        }
+
         let mut damage = damage::list(
             &previous.quads,
             &current.quads,
-            |(quad, _)| vec![quad.bounds.expand(1.0)],
+            |(quad, _)| {
+                quad.bounds
+                    .expand(1.0)
+                    .intersection(&current.bounds)
+                    .into_iter()
+                    .collect()
+            },
             |(quad_a, background_a), (quad_b, background_b)| {
                 quad_a == quad_b && background_a == background_b
             },
-- 
cgit