use draw protocol impl

Author: FoamyGuy

shared-bindings/vectorio/VectorShape.c

@@ -78,6 +78,7 @@ vectorio_draw_protocol_impl_t vectorio_vector_shape_draw_protocol_impl = {
     .draw_update_transform = (draw_update_transform_fun)vectorio_vector_shape_update_transform,
     .draw_finish_refresh = (draw_finish_refresh_fun)vectorio_vector_shape_finish_refresh,
     .draw_get_refresh_areas = (draw_get_refresh_areas_fun)vectorio_vector_shape_get_refresh_areas,
+    .draw_set_dirty = (draw_set_dirty_fun)common_hal_vectorio_vector_shape_set_dirty,
 };
 
 // Stub checker does not approve of these shared properties.

shared-bindings/vectorio/__init__.h

@@ -17,6 +17,7 @@ typedef bool (*draw_fill_area_fun)(mp_obj_t draw_protocol_self, const _displayio
 typedef bool (*draw_get_dirty_area_fun)(mp_obj_t draw_protocol_self, displayio_area_t *current_dirty_area);
 typedef void (*draw_update_transform_fun)(mp_obj_t draw_protocol_self, displayio_buffer_transform_t *group_transform);
 typedef void (*draw_finish_refresh_fun)(mp_obj_t draw_protocol_self);
+typedef void (*draw_set_dirty_fun)(mp_obj_t draw_protocol_self);
 typedef displayio_area_t *(*draw_get_refresh_areas_fun)(mp_obj_t draw_protocol_self, displayio_area_t *tail);
 
 typedef struct _vectorio_draw_protocol_impl_t {
@@ -25,6 +26,7 @@ typedef struct _vectorio_draw_protocol_impl_t {
     draw_update_transform_fun draw_update_transform;
     draw_finish_refresh_fun draw_finish_refresh;
     draw_get_refresh_areas_fun draw_get_refresh_areas;
+    draw_set_dirty_fun draw_set_dirty;
 } vectorio_draw_protocol_impl_t;
 
 // Draw protocol

shared-module/displayio/Group.c

@@ -70,22 +70,10 @@ void common_hal_displayio_group_set_hidden(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