rotary encoder velocity: use a custom LVGL flag to signal support (#66)

radio/src/thirdparty/libopenui/src/libopenui_defines.h

@@ -86,3 +86,4 @@
 #define COLOR_VAL(flags)               ((flags) >> 16u)
 #define COLOR_MASK(flags)              ((flags) & 0xFFFF0000u)
 
+#define LV_OBJ_FLAG_ENCODER_ACCEL LV_OBJ_FLAG_USER_1

radio/src/thirdparty/libopenui/src/menu.cpp

@@ -73,6 +73,9 @@ void MenuBody::onDrawEnd(uint16_t row, uint16_t col, lv_obj_draw_part_dsc_t* dsc
 MenuBody::MenuBody(Window * parent, const rect_t & rect):
   TableField(parent, rect)
 {
+  // Allow encoder acceleration
+  lv_obj_add_flag(lvobj, LV_OBJ_FLAG_ENCODER_ACCEL);
+
   setColumnCount(1);
   setColumnWidth(0, rect.w);
 

radio/src/thirdparty/libopenui/src/numberedit.cpp

@@ -45,6 +45,9 @@ NumberEdit::NumberEdit(Window* parent, const rect_t& rect, int vmin, int vmax,
                    std::move(setValue), windowFlags, textFlags,
                    field_edit_create)
 {
+  // Allow encoder acceleration
+  lv_obj_add_flag(lvobj, LV_OBJ_FLAG_ENCODER_ACCEL);
+
   // properties
   lv_obj_set_scrollbar_mode(lvobj, LV_SCROLLBAR_MODE_OFF);
   lv_textarea_set_password_mode(lvobj, false);