From e15238729e2a4deb3a365430f7697ffe1f944b51 Mon Sep 17 00:00:00 2001
From: Augtons <79037928+Augtons@users.noreply.github.com>
Date: Sat, 30 Mar 2024 21:41:04 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E9=83=A8=E5=88=86?=
 =?UTF-8?q?=E5=B9=B3=E5=8F=B0=E4=B8=8A=EF=BC=8C=E7=AA=97=E5=8F=A3=E4=BB=8E?=
 =?UTF-8?q?=E6=9C=80=E5=B0=8F=E5=8C=96=E6=81=A2=E5=A4=8D=E5=90=8E=EF=BC=8C?=
 =?UTF-8?q?=E7=9B=B4=E5=88=B0=20lvgl=20=E7=94=BB=E9=9D=A2=E5=87=BA?=
 =?UTF-8?q?=E7=8E=B0=E6=9B=B4=E6=96=B0=E5=89=8D=E9=83=BD=E6=97=A0=E6=B3=95?=
 =?UTF-8?q?=E6=AD=A3=E7=A1=AE=E6=98=BE=E7=A4=BA=E7=9A=84=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/lvglsim.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/lvglsim.cpp b/src/lvglsim.cpp
index ea6db87..36a73e1 100644
--- a/src/lvglsim.cpp
+++ b/src/lvglsim.cpp
@@ -153,6 +153,25 @@ void displays_loop()
                 controller.erase(windowId);
                 continue;
             }
+            if (event.window.event == SDL_WINDOWEVENT_EXPOSED) {
+                auto windowId = event.window.windowID;
+                auto it = windows.find(windowId);
+                if (it == windows.end()) {
+                    continue;
+                }
+                auto& [_, window_ptr] = *it;
+                auto root = lv_disp_get_scr_act(window_ptr->getDisplay());
+                // 强制刷新一次全屏 (由于 lv_refr_now() 在部分平台上仍然导致画面无变化)
+                std::lock_guard locker { lock };
+                auto root_hide = lv_obj_has_flag(root, LV_OBJ_FLAG_HIDDEN);
+                if (root_hide) {
+                    lv_obj_clear_flag(root, LV_OBJ_FLAG_HIDDEN);
+                    lv_obj_add_flag(root, LV_OBJ_FLAG_HIDDEN);
+                } else {
+                    lv_obj_add_flag(root, LV_OBJ_FLAG_HIDDEN);
+                    lv_obj_clear_flag(root, LV_OBJ_FLAG_HIDDEN);
+                }
+            }
         }
 
         if (event.type == SDL_MOUSEBUTTONDOWN || event.type == SDL_MOUSEMOTION || event.type == SDL_MOUSEBUTTONUP) {