Update LVGL to v9.1.0

lib/lvgl/examples/widgets/msgbox/index.rst

@@ -1,6 +1,6 @@
 
 Simple Message box
-"""""""""""""""""""
+------------------
 
 .. lv_example:: widgets/msgbox/lv_example_msgbox_1
   :language: c

lib/lvgl/examples/widgets/msgbox/lv_example_msgbox_1.c

@@ -3,17 +3,27 @@
 
 static void event_cb(lv_event_t * e)
 {
-    lv_obj_t * obj = lv_event_get_current_target(e);
-    LV_LOG_USER("Button %s clicked", lv_msgbox_get_active_btn_text(obj));
+    lv_obj_t * btn = lv_event_get_target(e);
+    lv_obj_t * label = lv_obj_get_child(btn, 0);
+    LV_UNUSED(label);
+    LV_LOG_USER("Button %s clicked", lv_label_get_text(label));
 }
 
 void lv_example_msgbox_1(void)
 {
-    static const char * btns[] = {"Apply", "Close", ""};
+    lv_obj_t * mbox1 = lv_msgbox_create(NULL);
 
-    lv_obj_t * mbox1 = lv_msgbox_create(NULL, "Hello", "This is a message box with two buttons.", btns, true);
-    lv_obj_add_event_cb(mbox1, event_cb, LV_EVENT_VALUE_CHANGED, NULL);
-    lv_obj_center(mbox1);
+    lv_msgbox_add_title(mbox1, "Hello");
+
+    lv_msgbox_add_text(mbox1, "This is a message box with two buttons.");
+    lv_msgbox_add_close_button(mbox1);
+
+    lv_obj_t * btn;
+    btn = lv_msgbox_add_footer_button(mbox1, "Apply");
+    lv_obj_add_event_cb(btn, event_cb, LV_EVENT_CLICKED, NULL);
+    btn = lv_msgbox_add_footer_button(mbox1, "Cancel");
+    lv_obj_add_event_cb(btn, event_cb, LV_EVENT_CLICKED, NULL);
+    return;
 }
 
 #endif

lib/lvgl/examples/widgets/msgbox/lv_example_msgbox_1.py

@@ -1,10 +0,0 @@
-def event_cb(e):
-    mbox = e.get_current_target()
-    print("Button %s clicked" % mbox.get_active_btn_text())
-
-btns = ["Apply", "Close", ""]
-
-mbox1 = lv.msgbox(lv.scr_act(), "Hello", "This is a message box with two buttons.", btns, True)
-mbox1.add_event_cb(event_cb, lv.EVENT.VALUE_CHANGED, None)
-mbox1.center()
-