From 7ada1301c2ee113a5184618538b979f6d9912239 Mon Sep 17 00:00:00 2001
From: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
Date: Sun, 3 Jul 2022 10:58:19 +0200
Subject: [PATCH] fix(btnmatrix): fix extra draw size calculation to not clip
 shadow

---
 src/widgets/lv_btnmatrix.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/widgets/lv_btnmatrix.c b/src/widgets/lv_btnmatrix.c
index 62f86f794..92a4d2fe3 100644
--- a/src/widgets/lv_btnmatrix.c
+++ b/src/widgets/lv_btnmatrix.c
@@ -399,13 +399,10 @@ static void lv_btnmatrix_event(const lv_obj_class_t * class_p, lv_event_t * e)
     lv_point_t p;
 
     if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) {
-        lv_coord_t * s = lv_event_get_param(e);
         if(has_popovers_in_top_row(obj)) {
             /*reserve one row worth of extra space to account for popovers in the top row*/
-            *s = btnm->row_cnt > 0 ? lv_obj_get_content_height(obj) / btnm->row_cnt : 0;
-        }
-        else {
-            *s = 0;
+            lv_coord_t s = btnm->row_cnt > 0 ? lv_obj_get_content_height(obj) / btnm->row_cnt : 0;
+            lv_event_set_ext_draw_size(e, s);
         }
     }
     if(code == LV_EVENT_STYLE_CHANGED) {