Cannot jump to a desired menu item ID using the callback function from parent item

[floxia]

Hi Jomelo, thanks for your excellent work in creating this fantastic library. I am facing an issue, and you might know what I might be doing wrong!

I am attempting to jump to a desired menu item ID using the callback function:

void  mFunc_jump_to_ID(uint8_t param)
{
    LCDML.OTHER_setCursorToID(4);
}

I have also tried the callback function below with the same results.

void  mFunc_jump_to_ID(uint8_t param)
{
    LCDML..OTHER_jumpToID(4, 0);
}

In this menu structure:

LCDML._add(0, LCDML._0, 1, "Item 1", mFunc_digit);

LCDML._add(1, LCDML._0, 2, "Item 2", mFunc_jump_to_ID);
LCDML._add(2, LCDML._0_2, 1, "Item 2, Sub 1", NULL);
LCDML._add(3, LCDML._0_2, 2, "Item 2, Sub 2", NULL);
LCDML._add(4, LCDML._0_2, 3, "Item 2, Sub 3", NULL);
LCDML._add(5, LCDML._0_2, 4, "Item 2, Sub 4", NULL);

The above function, when called, should jump straight to ID #4 in this case:

LCDML._add(4, LCDML._0_2, 3, "Item 2, Sub 3", NULL);

Although the function only works if it is not called from a parent but only from a child, as I suspect the parent is already bound to "open the submenu function", I cannot call any callback function from a menu item with submenus.

Therefore, for example,

This works:

LCDML._add(2, LCDML._0_2, 1, "Item 2, Sub 1", mFunc_jump_to_ID);

This does not work:

LCDML._add(1, LCDML._0, 2, "Item 2", mFunc_jump_to_ID);

I am not sure what I am missing here, I am also not seeing any other settings to call a function when the submenu is opened which would be useful to jump to the desired item. I am trying to jump to the desired value of each submenu previously stored elsewhere, showing the current setting selected.

Any ideas on how to solve this would be greatly appreciated.

[Jomelo]

Hi,
i will check this. At the moment i try to reproduce your case.

[Jomelo]

The LCDMenuLib needs a fix function structure. You are not calling the setup part.

Try this code please:

void mFunc_jump_to_ID(uint8_t param)
{
  if(LCDML.FUNC_setup())          // ****** SETUP *********
  {
    // remmove compiler warnings when the param variable is not used:
    LCDML_UNUSED(param);
  }

  if(LCDML.FUNC_loop())           // ****** LOOP *********
  {
    // loop function, can be run in a loop when LCDML_DISP_triggerMenu(xx) is set
    LCDML.OTHER_setCursorToID(4);
  }

  if(LCDML.FUNC_close())      // ****** STABLE END *********
  {
    // you can here reset some global vars or do nothing
  }
}

[floxia]

Thanks for your kind reply. I have updated the functions as per your answer in your example sketch LCDML_000_serialMonitor.ino but it did not work.

I have added the function at the bottom of the LCDML_display_menuFunction.ino file:

void mFunc_jump_to_ID(uint8_t param)
{
  if(LCDML.FUNC_setup())          // ****** SETUP *********
  {
    // remove compiler warnings when the param variable is not used:
    LCDML_UNUSED(param);
  }

  if(LCDML.FUNC_loop())           // ****** LOOP *********
  {
    // loop function, can be run in a loop when LCDML_DISP_triggerMenu(xx) is set
    LCDML.OTHER_setCursorToID(11);
  }

  if(LCDML.FUNC_close())      // ****** STABLE END *********
  {
    // you can here reset some global vars or do nothing
  }
}

And added the call back function to LCDML_000_serialMonitor.ino:

  LCDML_add         (0  , LCDML_0         , 1  , "Information"      , mFunc_information);       // this menu function can be found on "LCDML_display_menuFunction" tab
  LCDML_add         (1  , LCDML_0         , 2  , "Time info"        , mFunc_timer_info);        // this menu function can be found on "LCDML_display_menuFunction" tab
  LCDML_add         (2  , LCDML_0         , 3  , "Program"          , mFunc_jump_to_ID);                    // NULL = no menu function
  LCDML_add         (3  , LCDML_0_3       , 1  , "Program 1"        , NULL);                    // NULL = no menu function
  LCDML_add         (4  , LCDML_0_3_1     , 1  , "P1 dummy"         , NULL);                    // NULL = no menu function
  LCDML_add         (5  , LCDML_0_3_1     , 2  , "P1 Settings"      , NULL);                    // NULL = no menu function
  LCDML_add         (6  , LCDML_0_3_1_2   , 1  , "Warm"             , NULL);                    // NULL = no menu function
  LCDML_add         (7  , LCDML_0_3_1_2   , 2  , "Cold"             , NULL);                    // NULL = no menu function
  LCDML_add         (8  , LCDML_0_3_1_2   , 3  , "Back"             , mFunc_back);              // this menu function can be found on "LCDML_display_menuFunction" tab
  LCDML_add         (9  , LCDML_0_3_1     , 3  , "Back"             , mFunc_back);              // this menu function can be found on "LCDML_display_menuFunction" tab
  LCDML_add         (10 , LCDML_0_3       , 2  , "Program 2"        , mFunc_p2);                // this menu function can be found on "LCDML_display_menuFunction" tab
  LCDML_add         (11 , LCDML_0_3       , 3  , "Back"             , mFunc_back);              // this menu function can be found on "LCDML_display_menuFunction" tab
  LCDML_add         (12 , LCDML_0         , 4  , "Special"          , NULL);                    // NULL = no menu function
  LCDML_add         (13 , LCDML_0_4       , 1  , "Go to Root"       , mFunc_goToRootMenu);      // this menu function can be found on "LCDML_display_menuFunction" tab
  LCDML_add         (14 , LCDML_0_4       , 2  , "Jump to Time info", mFunc_jumpTo_timer_info); // this menu function can be found on "LCDML_display_menuFunction" tab
  LCDML_add         (15 , LCDML_0_4       , 3  , "Back"             , mFunc_back);              // this menu function can be found on "LCDML_display_menuFunction" tab

I am expecting when pressing the enter button here:

22:39:37.834 -> ===========================================
22:39:37.867 -> ================  Menu ====================
22:39:37.899 -> ===========================================
22:39:37.964 -> ( ) Information
22:39:37.964 -> ( ) Time info
22:39:37.998 -> (x) Program
22:39:37.998 -> ( ) Special

To see:

22:39:39.042 -> ===========================================
22:39:39.108 -> ================  Menu ====================
22:39:39.141 -> ===========================================
22:39:39.206 -> ( ) Program 1
22:39:39.206 -> ( ) Program 2
22:39:39.252 -> (x) Back

Although, at the moment, it just opens the submenu like:

22:39:39.042 -> ===========================================
22:39:39.108 -> ================  Menu ====================
22:39:39.141 -> ===========================================
22:39:39.206 -> (x) Program 1
22:39:39.206 -> ( ) Program 2
22:39:39.252 -> ( ) Back

Perhaps using your example sketch will make it easier for you to troubleshoot this.

Thank you again.

[Jomelo]

Hello,
today i find some time to check your point.
You can only set menu functions to elements which have no sub elements.

When i set your function to an element without childs it works normaly.

LCDML_add (0 , LCDML_0 , 1 , "Information" , mFunc_information); // this menu function can be found on "LCDML_display_menuFunction" tab LCDML_add (1 , LCDML_0 , 2 , "Time info" , mFunc_timer_info); // this menu function can be found on "LCDML_display_menuFunction" tab LCDML_add (2 , LCDML_0 , 3 , "Program" , NULL); // NULL = no menu function LCDML_add (3 , LCDML_0_3 , 1 , "Program 1" , NULL); // NULL = no menu function LCDML_add (4 , LCDML_0_3_1 , 1 , "P1 dummy" , mFunc_jump_to_ID); // NULL = no menu function

What is your usecase to use an element with childs as menu function without showing the childs ?