use draw protocol impl in parent hidden too

Author: FoamyGuy

shared-module/displayio/Group.c

@@ -32,9 +32,6 @@
 
 #if CIRCUITPY_VECTORIO
 #include "shared-bindings/vectorio/VectorShape.h"
-#include "shared-bindings/vectorio/Circle.h"
-#include "shared-bindings/vectorio/Rectangle.h"
-#include "shared-bindings/vectorio/Polygon.h"
 #endif
 
 
@@ -104,22 +101,10 @@ void displayio_group_set_hidden_by_parent(displayio_group_t *self, bool hidden)
             continue;
         }
         #if CIRCUITPY_VECTORIO
-        layer = mp_obj_cast_to_native_base(
-            self->members->items[i], &vectorio_circle_type);
-        if (layer != MP_OBJ_NULL) {
-            common_hal_vectorio_vector_shape_set_dirty(common_hal_vectorio_circle_get_draw_protocol(layer));
-            continue;
-        }
-        layer = mp_obj_cast_to_native_base(
-            self->members->items[i], &vectorio_rectangle_type);
-        if (layer != MP_OBJ_NULL) {
-            common_hal_vectorio_vector_shape_set_dirty(common_hal_vectorio_rectangle_get_draw_protocol(layer));
-            continue;
-        }
-        layer = mp_obj_cast_to_native_base(
-            self->members->items[i], &vectorio_polygon_type);
-        if (layer != MP_OBJ_NULL) {
-            common_hal_vectorio_vector_shape_set_dirty(common_hal_vectorio_polygon_get_draw_protocol(layer));
+        const vectorio_draw_protocol_t *draw_protocol = mp_proto_get(MP_QSTR_protocol_draw, self->members->items[i]);
+        if (draw_protocol != NULL) {
+            layer = draw_protocol->draw_get_protocol_self(self->members->items[i]);
+            draw_protocol->draw_protocol_impl->draw_set_dirty(layer);
             continue;
         }
         #endif