UI test

source/main.c

@@ -10,6 +10,7 @@
 static lv_obj_t * cursor;
 static lv_obj_t * label;
 static lv_obj_t * label2;
+static lv_obj_t * fps_label;
 
 
 long unsigned int sys_tick(void)
@@ -56,17 +57,68 @@ static void cursor_timer_cb(lv_timer_t * t)
     }
 }
 
-int main(int argc, char* argv[])
+static void switch_event_cb(lv_event_t * e)
 {
-    sys_init();
+    lv_obj_t * sw = lv_event_get_target(e);
-    lv_init();
-    lv_ctr_disp_init();
-    lv_ctr_indev_init();
-    lv_tick_set_cb(sys_tick);
 
-    label = lv_label_create(lv_screen_active());
+    if (lv_obj_has_state(sw, LV_STATE_CHECKED))
+        lv_label_set_text_fmt(label, "ON");
+    else
+        lv_label_set_text_fmt(label, "OFF");
+}
+
+static void fps_tick(void)
+{
+    static u32 frames = 0;
+    static u64 last = 0;
+
+    u64 now = osGetTime();
+
+    frames++;
+
+    if (now - last >= 1000) {
+
+        lv_label_set_text_fmt(fps_label,
+            "FPS: %lu",
+            frames);
+
+        frames = 0;
+        last = now;
+    }
+}
+
+static void ui_prepare(void)
+{
+    /* Container START */
+    lv_obj_t * cont = lv_obj_create(lv_screen_active());
+
+    /* Container layout */
+    lv_obj_set_size(cont, 220, 120);
+    lv_obj_center(cont);
+
+    lv_obj_set_layout(cont, LV_LAYOUT_FLEX);
+    lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN);
+    lv_obj_set_flex_align(cont,
+        LV_FLEX_ALIGN_CENTER,
+        LV_FLEX_ALIGN_CENTER,
+        LV_FLEX_ALIGN_CENTER);
+
+    /* Optional cleaner look */
+    lv_obj_set_style_pad_all(cont, 16, 0);
+    lv_obj_set_style_pad_row(cont, 12, 0);
+
+    /* Label */
+    label = lv_label_create(cont);
     lv_label_set_text(label, "Hello world");
-    lv_obj_center(label);
+
+    /* Switch */
+    lv_obj_t * sw = lv_switch_create(cont);
+    lv_obj_center(sw);
+    lv_obj_add_event_cb(sw,
+        switch_event_cb,
+        LV_EVENT_VALUE_CHANGED,
+        NULL);
+    /* Container END */
     
     /* Cursor */
     cursor = lv_obj_create(lv_screen_active());
@@ -79,15 +131,36 @@ int main(int argc, char* argv[])
     label2 = lv_label_create(lv_screen_active());
     lv_obj_align(label2, LV_ALIGN_TOP_LEFT, 4, 4);
     
+    /* FPS label */
+    fps_label = lv_label_create(lv_screen_active());
+    lv_obj_align(fps_label,
+        LV_ALIGN_BOTTOM_LEFT,
+        4,
+        -4);
+    
     /* Main loop UI update timer */
     lv_timer_create(cursor_timer_cb, 16, NULL);
     
     lv_obj_invalidate(lv_screen_active());
+}
+
+int main(int argc, char* argv[])
+{
+    sys_init();
+    lv_init();
+    lv_ctr_disp_init();
+    lv_ctr_indev_init();
+    lv_tick_set_cb(sys_tick);
+
+    ui_prepare();
 
     // Main loop
     while (aptMainLoop())
     {
+        u64 start = osGetTime();
         lv_timer_handler();
+        u64 end = osGetTime();
+        lv_label_set_text_fmt(fps_label, "render: %llums", end - start);
 
         hidScanInput();