diff --git a/libs/ui/Region.cpp b/libs/ui/Region.cpp
index 488fba3..bf01488 100644
--- a/libs/ui/Region.cpp
+++ b/libs/ui/Region.cpp
@@ -239,6 +239,10 @@
     mStorage.add(Rect(w,h));
 }
 
+bool Region::isTriviallyEqual(const Region& region) const {
+    return begin() == region.begin();
+}
+
 // ----------------------------------------------------------------------------
 
 void Region::addRectUnchecked(int l, int t, int r, int b)