Use Point2D in the C++ ffi when setting the window position

api/cpp/include/slint.h

@@ -185,7 +185,7 @@ public:
 
     void set_position(const slint::Point<int> &pos)
     {
-        cbindgen_private::slint_windowrc_set_position(&inner, pos.x, pos.y);
+        cbindgen_private::slint_windowrc_set_position(&inner, &pos);
     }
 
     slint::Size<unsigned int> size() const { return cbindgen_private::slint_windowrc_size(&inner); }

api/cpp/include/slint_point.h

@@ -19,4 +19,11 @@ struct Point
     bool operator==(const Point &other) const = default;
 };
 
+namespace cbindgen_private {
+// The Size types are expanded to the Point2D<...> type from the euclid crate which
+// is binary compatible with Point<T>
+template<typename T>
+using Point2D = Point<T>;
+}
+
 }

internal/core/window.rs

@@ -945,11 +945,10 @@ pub mod ffi {
     #[no_mangle]
     pub unsafe extern "C" fn slint_windowrc_set_position(
         handle: *const WindowRcOpaque,
-        x: i32,
+        pos: &euclid::default::Point2D<i32>,
-        y: i32,
     ) {
         let window = &*(handle as *const WindowRc);
-        window.set_position([x, y].into());
+        window.set_position(euclid::Point2D::from_untyped(*pos));
     }
 
     /// Returns the size of the window on the screen, in physical screen coordinates and excluding